FLETCHER
ET AL., 33RD BETHESDA CONFERENCE: Preventive Cardiology: How Can
We Do Better?
J Am Coll Cardiol 2002;40:4:579-651
BETHESDA
CONFERENCE REPORT
33rd Bethesda Conference: Preventive Cardiology: How Can We Do Better?
C.
Noel Bairey Merz, MD, FACC, Co-Chair, George A. Mensah, MD,
FACC, Co-Chair, Valentin Fuster, MD, PHD, FACC, Philip Greenland,
MD, FACC, Paul D. Thompson, MD, FACC
Task
Force #5The Role of Cardiovascular Specialists as Leaders
in Prevention: From Training to Champion
Three driving forces call for an intensive effort focused on cardiovascular
disease (CVD) prevention: 1) the dominant risk factors for CVD are
known; 2) effective interventions are available; 3) CVD remains
the leading cause of death. The previous four task forces have outlined
the magnitude of the CVD problem, and documented the cost-utility,
intervention efficacy, and adherence strategies available for implementation,
yet a majority of the U.S. population is not receiving appropriate
preventive care. The goal of Task Force #5 is to evaluate the role
of the cardiovascular (CV) specialist as a leader and champion in
rectifying missed preventive opportunities. The knowledge, attitudes,
and beliefs of CV specialists toward prevention will be evaluated.
Considering the imminent predicted increase in the CVD burden outlined
in Task Force #1, it is essential that
a plan for leadership in prevention be identified.
An
increase in the CVD burden is predicted because of the aging of
the population and the persistence of unhealthy lifestyles such
as smoking, overeating, and low levels of physical activity (1).
One approach to this predictable illness is to prepare a greater
capacity to deal with the illnessanalogous to preparing more
ambulances to wait at the bottom of a cliff during a stampede. Current
knowledge of interventions effective in preventing CVD, however,
puts one in a position to consider, metaphorically, building a fence
at the top of the cliff, thereby reducing the need for ambulances.
Physicians have historically been trained for the ambulance activities
and not for "fence building." How well are current and
future physicians being trained to perform prevention? This discussion
addresses the extent of education about preventive practices in
medical school, residency, and fellowship training. It also reviews
the opinions and perceptions of CV trainees and specialists about
CVD prevention. The barriers to and opportunities for integrating
prevention into daily specialty practice are discussed. The need
for training more preventive, academically oriented CV specialists
will be outlined.
How
Much Training in Prevention?
How much preventive training in medical school? The focus
on prevention in national "report cards" such as the Health
Plan Employer Data Information Set from the National Committee for
Quality Assurance has increased the attention on prevention in medical
training as an indicator of the quality of care. The Bureau of Health
Professions of the Health Resources and Services Administration
(HRSA) and the Association of Teachers of Preventive Medicine have
worked to develop a set of core competencies in preventive medicine
for medical school (2). In 1995, leaders in internal medicine, such
as the Society of General Internal Medicine, the Clerkship Directors
in Internal Medicine, and the HRSA prioritized prevention and offered
specific prevention-related learning objectives in the new model
curriculum for the medicine clerkship, which is called the Core
Medicine Clerkship Guide (3). Subsequent evaluation indicates that
the Core Medicine Clerkship Guide has been used in some form in
more than 100 medical schools (4). Notably, the Association of American
Medical Colleges (AAMC) Liaison Committee on Medical Education does
not include any specific preventive education content as criteria
for medical school accreditation, and 33% of medical schools do
not have preventive medicine content as required coursework (5).
Two
recent surveys of preventive training in medical school critically
review the current curriculum content in preventive training. The
Prevention Curriculum Assistance Program (PCAP) documents that fewer
than half of the respondents were satisfied with the quality of
their achievement in any of the four domains of preventive education
(6). The AAMC also performed a survey documenting that, although
preventive training was increasingly incorporated into interdisciplinary
teaching in some schools, it had been lost during this transition
in an equal number of schools (7). The AAMC survey did note a steady
increase in the proportion of graduates reporting that an "adequate"
amount of time in the curriculum was spent on disease preventionfrom
54% in 1993 to 76% in 1997 (8). A recent report, however, indicates
that these efforts have not yet translated into applied knowledge.
Among U.S. medical schools in 1999, the majority (69%) of graduates
were not adequately trained to treat tobacco dependence (9). Thus,
recent data imply that prevention is not adequately taught in most
medical schools.
How
much training in residency? Internal medicine residency programs
have also developed a resource guide for preventive training (10).
The resource guide identifies a core curriculum for training in
internal medicine and includes competency in 20 integrative disciplines,
as well as 22 clinical areas. For each integrative discipline, the
guide lists a set of competencies that residents should achieve
during their training and prompts residency program directors to
decide which instructional methods and clinical settings are best
suited to accomplish each competency. There are no available nationally
representative data assessing if and how preventive education is
being implemented in residency training. A survey of randomly selected
primary care physicians in Massachusetts performed in 1981 and 1994
did demonstrate an overall expansion of their perceived role in
the promotion of health, although they continued to feel inadequately
trained to do so (11).
How
much preventive education in fellowship training? Because cardiologists
provide most of the care for patients with symptomatic or advanced
CVD, the American College of Cardiology (ACC) has stated that it
is imperative for CV specialists to be proficient in the primary
and secondary prevention of CVD. Indeed, since 1995, the ACC Core
Cardiology Training Symposium (COCATS) Recommendations for Training
in Adult Cardiovascular Medicine have outlined preventive core components
for both the faculty and curriculum in cardiology subspecialty training.
These recommendations have recently been updated (12).
Table 1 itemizes the Level 1
training, which is required for all cardiology fellows.
The
ACC Prevention of Cardiovascular Disease Committee (PCDC) conducted
a survey of U.S. fellowship training programs with regard to preventive
training in 1999. Overall, 106 of 196 (54%) program responses were
received, and the results are shown in Table
2. The majority of CV specialist training programs surveyed
had both dedicated preventive faculty and preventive/cardiac rehabilitation
sections, but less than one-third had formal preventive cardiology
training as part of their program. Similarly a recently published
survey documents that only 29% of fellowship programs had mandatory
cardiac rehabilitation rotations. This survey also documented that
physicians in programs offering at least one hour of cardiac rehabilitation
fellowship training were more likely to refer patients to cardiac
rehabilitation (13). From these survey
results, it was concluded that the majority of current CV specialist
training programs are not compliant with the ACC COCATS Training
in CV Medicine recommendations. A lack of integration between training
program certification and the ACC COCATS recommendations, which
allows noncompliant clinical training programs to perpetuate inadequate
training in prevention, is also noteworthy. The failure to provide
training in cardiac rehabilitation places an additional limitation
on the ability of future CV subspecialists to function as team leaders
in an increasingly multidisciplinary healthcare system. Indeed,
the current CV specialty training has been equated to training "kings
and queens" rather than team leaders, resulting in both a lack
of leadership and a lack of appreciation of team efficacy in surmounting
the complexities of multifactorial risk management, which is required
for prevention.
How
much prevention in trainee evaluation and testing? Evaluation
often drives learning, and a large body of evidence links the establishment
of standards and assessment procedures to subsequent performance.
Assessment through testing of the knowledge, skills, and attitudes
of trainees is realistically one of the few ways to make a critical
review of the outcome of instruction. In medical school, results
from the PCAP indicated that the most frequently used method of
measuring student competence in prevention was a written test (6).
Results of this survey also revealed that the majority (between
30% and 50%) of respondents were interested in assistance to improve
their school's methods of evaluating curriculum in prevention (6).
In residency and fellowship training, board certification testing
also uses written standardized testing. Currently, the American
College of Graduate Medical Examiners has no specified amount or
content areas of preventive education assessment. The ACC PCDC recently
reviewed the American Board of Internal Medicine (ABIM) preventive
cardiology content of this testing. According to the ABIM report,
an overall 7% of the questions were devoted to prevention, and a
goal of increasing this to 10% was endorsed (J. Loscalzo, personal
communication, February 23, 2001). Granted the literature-supported
figure of 50% for the CV risk reduction experienced in recent decades
being attributable to preventive efforts (including aspirin, beta-blockers,
lipid lowering, and lifestyle-related changes), an increase in this
proposed figure to at least 15% seems quite appropriate. The new
ABIM Practice Improvement Module program, which is in development
for physician recertification, has selected preventive cardiology
as one of the first modules. Designed to assist physicians in the
self-evaluation of that knowledge and ability to implement their
knowledge, these modules will have four major components, including:
1) chart-stimulated patient review; 2) patient questionnaire; 3)
systems questionnaire; and 4) multiple-choice questions (14).
Barriers
and templates for training improvement. There are a number of
barriers to the incorporation of comprehensive preventive education
throughout medical training. Limited time, lack of curriculum integration,
lack of trainee interest, and focus on crucial in-patient issues
are commonly cited barriers. American cultural beliefs that marginalize
the role of prevention and glamorize the impact of more dramatic
medical interventions also probably serve as a barrier (15).
A
proposed approach to incorporating prevention into all aspects of
training is to build prevention-related objectives into a global
curricular renewal or reform process of medical schools, residency,
and fellowship programs (16). As medical school and postgraduate
training programs undergo curriculum reform, core educational approaches
should include a commitment to integrate crosscutting themes, such
as prevention. Training guidelines, such as the PCAP Core Competencies
(2), the Internal medicine residency resource guide for training
in prevention (10), and the ACC COCATS recommendations (12), should
be actively incorporated into problem-based learning cases, interdisciplinary
conferences, and community health projects, as was done in 1999
by the University of Rochester (16). This is accomplished by leadership
vision on the part of the dean, department chairs and faculty. Faculty
development activities such as organizational development, instructional
development and personal development, are also essential in supporting
the incorporation of preventive education. Specifically, the inadequate
recognition and reward for teaching will remain a significant impediment
to substantive curricular reform until direct efforts are made to
acknowledge these important contributions (17).
What
Type of Practitioner Training Is Needed?
Overview of CME/educational opportunities. There are a variety
of continuing medical education (CME) opportunities related to CVD
prevention available for practicing physicians and provided by CME
and industry-supported education programs. The pharmaceutical industry
has been among the most persistent in encouraging physicians to
screen, evaluate, and treat CV risk factors more aggressively. By
contrast, organizations directly involved with CV training have
been less aggressive. Among ACC-sponsored educational programs from
May to December of 2001, only 2 of 36 offerings appeared directly
related to Preventive Cardiology. These were entitled "Implementing
Coronary Risk Factor Modification: Why, How, and In Whom?"
and the "1st Annual Conference on the Integration of Complementary
Medicine in a Traditional Cardiology Practice." Other programs
undoubtedly contain preventive components, but these could not be
quantified. It is not known how many formal training programs in
preventive cardiology are available for CV fellows in training.
Perceptions/opinions
about CV specialists' need for preventive education. There is
little concrete information available on the perceptions and opinions
about the CV specialist's need for preventive education. Only rarely
has a publication addressed the training of CV specialists (18).
This lack of educational research activity data is especially apparent
when compared with other disciplines. There are a number of studies
in general and family practice, for example, documenting attitudes
toward prevention among practicing physicians and trainees (19).
A
Medline search designed to evaluate published research on preventive
education among physicians used the key words, "Cardiovascular,"
"Prevention," "Physician" and "Education,"
and yielded 111 references in English. Only four directly addressed
prevention among CV specialists (one of these examined the issue
of antibiotic prophylaxis for patients with valvular heart disease).
Indeed, the total number of preventive CV manuscripts written for
other health care workers equaled the number designed for cardiologists.
Cognitive
training versus training in applied systems. With rare exceptions,
there is little published on techniques used by practicing CV specialists
to facilitate prevention in their practices. The material that is
available is often anecdotal (20).
A
large component of cognitive training is essential. From the general
medical education literature it is clear that a physician's self-perception
that he or she has the knowledge to effect change is required before
that physician will attempt intervention (21). Cognitive training
and particularly CME alone, however, is not sufficient. Indeed,
in some physician educational studies, cognitive training alone
in the form of conferences is used as the "control" group.
Compared with conferences alone, conferences and quality improvement
consultations, conferences and a coordinator in prevention, and
a combination of these interventions produced a greater improvement
in physician performance in risk-factor management (22). In the
absence of data specifically addressing CV specialists, it seems
intuitive that both cognitive and applied systems training are required
to prepare specialists to establish programs in prevention.
Status
of the current scientific sessions with respect to prevention.
The CV prevention content of the ACC Scientific Sessions has been
surveyed for the last three years by the ACC PCDC. Using the resource/key
words (listed in the Appendix: Resource Guide), this search demonstrated
that CV prevention content has appropriately increased from 6.5%
in March 2000 to 19.5% in March 2001, consistent with the increased
scientific interest in this field.
Barriers
and templates for improving preventive training. There is a
need to clarify the role of the CVD specialist in prevention so
that specialists view this area as within their appropriate domain.
There are, by anecdotal data, knowledge deficits among practicing
CV specialists in how best to manage hypertension, lipid disorders,
diabetes, cigarette smoking, lack of exercise, and obesity, and
these deficits are undoubtedly a barrier to preventive therapy.
In addition, there is often insufficient feedback within the practice
setting to provide the specialist with a scorecard for performance.
There is virtually no formal research on educational methods for
use in training CV specialists in prevention. All of these areas
should be addressed to enhance the training available to both trainees
and practitioners in CVD prevention.
How
Should Preventive Services Be Integrated Into Daily CV Specialty
Practice?
Successful integration of preventive services into daily CV specialty
practice requires effective discussion of four important elements.
First, the perceptions and opinions about the role of the specialists
in delivering long-term preventive services must be addressed and
clarified. Second, evidence of current gaps and missed opportunities
for identifying high risk individuals and delivering appropriate
preventive care for reducing the risk of fatal and non-fatal CV
events must be presented. Third, the role of medical informatics
in the dissemination of CV clinical guidelines and in facilitating
the application of guidelines in daily specialty practice must be
reviewed. Fourth, important barriers, proposed solutions, and templates
for continued improvement must be presented.
Perceptions
and opinions of the specialist. When patients are referred for
evaluation and treatment of acute coronary syndromes or other acute
problems, discussions about long-term lifestyle changes for the
prevention or control of risk factors are not seen as germane to
the chief complaint. Additionally, laboratory data such as blood
cholesterol or glucose obtained at the time of the acute event may
not be considered representative of the long-term values and, thus,
can fail to elicit appropriate management. Often, the CV specialist
perceives his or her role as addressing the chief complaint and
leaving the long-term preventive services to the referring primary
care physician. This perception seems to be supported by studies
also showing that most family physicians see their role in the reduction
and control of CVD risk factors as central (23). Ample evidence
suggests that for these and a variety of other reasons, many patients
eligible for preventive counseling do not receive these services
even when they come in contact with physicians (24). In fact, lifestyle
and other behavioral modifications may be an important component
of the appropriate care for the acute problem. For example, weight
gain, excess salt intake, and medication non-compliance may be the
culprits underlying "resistant" hypertension. Thus, it
may be necessary to counsel patients on lifestyle changes to control
resistant hypertension (25,26). The CV specialist has a clear mandate
for addressing primary prevention and risk factor control in all
settings of patient encounters (27).
Many
CV specialists recognize that the level of reimbursement for the
amount of time it takes to deliver appropriate comprehensive counseling
in smoking cessation, nutrition, physical activity, and other lifestyle
changes for patients and their families is inadequate. It is more
appropriate for someone other than the specialist to deliver that
care. The use of a multidisciplinary care team that includes non-physician
providers to address preventive services and health promotion counseling
is an important part of the solution. In addition, reimbursement
reform must address the importance of preventive services as an
integral part of specialist practice. It is important to emphasize,
however, that several studies have shown that changing reimbursement
alone is not enough to improve delivery of preventive care (28,29).
There
are various ways that physicians can incorporate prevention into
their practices and be adequately compensated. Physicians can use
standard billing codes and procedures for the evaluation and treatment
of a multitude of CV risk factors, including hypertension, diabetes,
hyperlipidemia, nicotine addiction, and standard CV conditions.
Nurse practitioners and physician assistants can be employed to
manage risk-factor programs such as lipid and hypertension clinics,
which can be billed under the appropriate risk-factor code. Also,
CV specialists can initiate cardiac rehabilitation programs that
are a good source of patient retention for the practice and/or hospital.
Billing codes exist for monitored exercise, and these programs are
required to provide patient education and are thus excellent resources
for multidisciplinary risk-factor care.
Two
important misconceptions held by many CV experts are, first, the
feeling that they lack the skill to deliver effective counseling
about behavior modification (such as smoking cessation or weight
loss) and other lifestyle changes (30) and, second, that the elderly
may not benefit as much as the young when prescribed preventive
interventions (such as drug treatment for isolated systolic hypertension).
These misconceptions lead to undertreatment or, at worst, withholding
of preventive counseling or therapies known to prolong life and
reduce mortality. In fact, these misconceptions have been dispelled
by recent epidemiological data and randomized, placebo-controlled
trials (31,32). Greenlund et al. (31) showed that in 52,046 persons
in 20 states participating in the 1999 Behavioral Risk Factor Surveillance
System, the proportion of persons who were engaged in dietary changes
was higher among those who received physician advice (85.4%) than
among those who did not receive such advice (56.0%). In this same
population, the percentage engaged in exercise was greater among
those who received physician advice (76.5%) to exercise than among
those who did not receive such advice (38.5%). Regarding the relative
value of preventive therapies achieved by elderly persons, Hunt
et al. (32) recently showed that in patients who are 65 years or
older with a history of coronary heart disease and only average
or moderately elevated cholesterol levels, pravastatin treatment
resulted in a significantly greater benefit (reductions in death
or major CV event) than in younger patients. Furthermore, data from
the Systolic Hypertension in the Elderly Program and Long-term Intervention
with Pravastatin Ischemic Disease trials demonstrate the gaps in
overall risk-reduction experienced when only single risk factors
are treated, emphasizing the role of CV specialists and multidisciplinary
teams in global risk management.
Current
gaps and missed opportunities. Several studies document important
missed opportunities in all settings of patient encounters (24,33-36).
In the in-patient arena, the admitting clinical history, review
of systems, and past medical history often fail to elicit the presence
of coronary risk factors. Frolkis et al. (37) showed that even among
the best performing physicians, the rate of screening for established
major coronary risk factors in patients admitted to a coronary care
unit were 89%, 74%, 68%, 59%, 56%, 37%, and only 11% for the presence
of cigarette use, known coronary heart disease, hypertension, hyperlipidemia,
family history, diabetes, and postmenopausal status, respectively.
Similarly, abnormalities or clues on physical examination (such
as elevated blood pressure (BP), widened pulse pressure, xanthelasma,
and so forth) and on the routine blood tests and electrocardiogram
(such as left ventricular hypertrophy) unrelated to the chief complaint
may not trigger the appropriate preventive intervention. In fact,
at the time of discharge after a myocardial infarction (MI), most
patients do not receive appropriate advice and counseling about
coronary risk factors and secondary prevention (38). In addition,
prescriptions for aspirin, beta-blockers, and lipidlowering agents
that are known to reduce recurrent infarction and CV complications
remain suboptimal (34,39).
The
gaps in effective delivery of preventive services noted in the in-patient
setting are similarly seen in patient encounters in the out-patient
and diagnostic laboratory settings. For example, analysis of the
National Ambulatory Medical Care Survey data about preventive health
behaviors during office visits demonstrated that a high proportion
of office visits in 1995 did not include counseling for the prevention
of CVD (35). Berlowitz et al. (40) showed that increases in therapy
occurred in only 6.7% of visits despite an average of more than
six hypertension-related visits per year in a group of 800 male
veterans (40% of whom had a BP greater than or equal to 160/90 mm
Hg) during a two-year period. Current smokers may not receive counseling
or advice to quit smoking during any number of visits to the clinic,
and praise or encouragement is rarely given when patients achieve
mild success in lifestyle changes. Many hospitals do not have a
structured smoking-cessation program or medical director responsible
for coordinating global CV preventive services. Luzier et al. (41)
recently showed that even in the presence of compelling laboratory
data (such as left ventricular ejection fraction less than 40% in
post-infarction patients) as many as 46% of eligible patients are
discharged without a prescription for an angiotensinconverting enzyme
inhibitor. Of the patients who received the drug, only 11% received
the recommended dosages (41).
The
role of medical informatics in improving preventive services.
Although lack of adequate training and limited skills are often
cited as reasons for the observed gaps in the delivery of quality
preventive services (42,43) CME alone is unlikely to change practice
patterns unless it is coupled with chart audits and constructive
feedback to specialists when deviations from guideline recommendations
are noted. Most importantly, reliance on the busy specialists to
remember all guidelines for all CV diagnoses during all patient
encounters is unrealistic. A recent review of the National Guidelines
Clearing House Website showed a total of 119 published guidelines
intended for physicians on CVD alone (44). The use of evidence-based
prompts, alerts, and reminders can help improve physician compliance
with guidelines for preventive care (45-47).
Gaps
in the delivery of preventive services and limited compliance with
established guidelines by CV and hypertension specialists are more
reflective of health care systems issues, forgetfulness, and limited
time during the patient encounter than of deficiencies in the specialists'
knowledge (48). This contrasts with
what has been published for internists regarding diagnostic testing
in preventive services (use of electrocardiograms, cholesterol level
tests, and chest radiographs) and behavioral counseling to promote
health (in the areas of smoking cessation and physical activity).
Schwartz et al. (49) concluded that
internists used effective preventive interventions less frequently
and ineffective practices more frequently than experts recommend
and that this observation was associated with habit, attitude, and
a lack of adequate knowledge. In addition to providing continuing
education, even greater emphasis must be placed on health care systems
changes and informatics supports that will enable of guideline-based
electronic prompts and reminders to be implemented at each patient
encounter. Notably, a number of informative tools are available
to assist with global risk assessment (see Appendix:
Resource Guide). These changes at the health care system level
will represent an important safety net for CVD prevention for all
patients.
Important
barriers and templates for improvement. The key barriers to
the successful delivery of preventive services include the lack
of effective communication between CV specialists and referring
primary care physicians, decreasing the length of time the CV specialist
spends with the patient, the inadequate reimbursement for preventive
services, inadequate medical informatics support, and other health
care system barriers.
Templates
for improvement must focus on the building of partnerships and improved
communication among and between CV and hypertension specialists,
referring primary care physicians, and non-physician providers.
As Turner and Ball (50) stated 25 years ago:
"Cardiologists
on their own are unlikely to succeed in a program of prevention.
They need the help of many others, including community nurses, nutritionists,
public health workers, sociologists, and of course general practitioners,
but they have responsibility for leadership and for providing background
knowledge."
Investments
must be made in improving informatics support and development of
guideline-based electronic prompts, alerts, and reminders to facilitate
the delivery of preventive care services.
Can
CV Specialists Be Champions of Prevention?
Cardiovascular specialists shoulder a broad range of responsibilities
for the care of individuals with CVD or the potential for developing
it. They also bear responsibility for the CV health of communities,
specifically by acting at the political level to encourage and assist
in the implementation of healthy lifestyle changes, for example,
through promotion of sidewalks for walking, parks for recreation,
and healthier food in schools. For individual patients, through
educational and other efforts, CV specialists are expected to contribute
significantly to both the treatment and prevention of CVD.
There
is no question that, among other duties and responsibilities, CV
specialists should serve as champions of prevention. For
example, in the recent ACC COCATS document on Training in Preventive
Cardiovascular Medicine (12), in the Cardiac Rehabilitation guidelines
of the American Heart Association (AHA)/American Association of
Cardiovascular and Pulmonary Rehabilitation (51), and in such documents
as the AHA Primary and AHA/ACC Secondary Prevention Guidelines (52,53),
cardiologists are designated as being responsible for delivering
preventive care to their patients. As a further specific example,
in a recent AHA statement on when to start cholesterol-lowering
treatment after a MI (54), the following appeared:
"The
cardiovascular specialist or attending physician should be responsible
for starting some form of cholesterol-lowering therapy in patients
upon discharge from the hospital after acute coronary events. Failure
to do so can convey a message to the patient's follow-up physician
that cholesterol management is not necessary. The cardiovascular
specialist thus should ensure that appropriate therapy is initiated
and maintained. Interaction between the cardiovascular specialist
and primary care physician will further assure that cholesterol
management is initiated and continued and that the patient is monitored
for drug toxicity."
There
are many other examples in the recent cardiology literature affirming
that prevention of CVD or prevention of recurrent disease in cardiac
patients (secondary prevention) is directly within the role of CV
specialists.
In
many clinical settings, prevention of CVD is a multidisciplinary
responsibility, and this division of labor can be both a help and
a hindrance to the delivery of CV preventive services. For example,
in the delivery of services for cardiac rehabilitation, smoking
cessation, exercise therapy, dietary therapy, weight control, and
hypertension control programs, CV specialists are typically members
of a team of therapists rather than solo practitioners. Moreover,
for many of these services, a patient may view a primary care physician
as the most responsible physician, rather than the consulting CV
specialist. Nonetheless, as suggested by the quotation above concerning
the delivery of cholesterol-lowering therapy after MI, communication
between practitioners and the delivery of a clear, consistent message
is crucially important. Coordination of efforts is also important,
and although the CV specialist may not have exclusive (or even primary)
responsibility for the delivery of preventive services, it is imperative
that CV specialists convey to patients the importance of the effort
and secure the necessary care within the local health care system.
In
some cases, the cardiologist will be the leader of the team (e.g.,
Head of the Cardiac Rehabilitation Program), but in many clinical
settings, the CV specialist may be uninvolved in the direct delivery
of the services (e.g., most smoking cessation programs). Whether
as team leader, team member, or referral source, it is extremely
important for a CV specialist to collaborate with other professionals
when this is in the best interest of the patient. Specialists may
need to draw on the complementary skills and knowledge of nurses,
pharmacists, dietitians, optometrists, dentists and physician assistants.
Cardiovascular specialists also need to learn when to utilize other
specialists by appropriately referring patients for more intensive
counseling. Minimally, CV specialists should be expected to perform
the "Four As" of preventive care developed in the treatment
of smoking cessation (55):
- Assess
the need for the preventive service.
- Advise
the patient to seek preventive services or to modify behavior
as indicated.
- Assist
the patient in the provision of preventive treatments (as needed).
- Arrange
for follow-up of the patient to reinforce positive changes and
to redirect behavior as needed.
A
number of barriers inhibit the delivery of preventive services in
clinical medicine (56). One of the barriers most commonly cited
is "lack of time" to provide personal delivery of the
preventive service, whether it is smoking cessation, dietary counseling,
or other aspects of the comprehensive approach to preventing CVD
(57,58). As several authorities in the field of prevention have
designated, lack of time is most often an excuse, not a real barrier.
There are a variety of systems (59) and other assistance devices
to allow busy clinicians to promote the practice and delivery of
services in preventive cardiology (60). If the clinicians are properly
organized and committed, they can have "time" to succeed
and deliver preventive services. Successful approaches to the delivery
of CV preventive services have been reported (59,61,62), and most
of these require primarily that CV specialists focus on prevention
for only a few minutes with the patient. Success often requires
development of a multidisciplinary approach (63) built on a strong
commitment to the best possible preventive service that can be offered.
Although
preventive services are distinctly within the purview of CV specialists
and many successful programs are available, evidence shows that
referrals to these programs and participation in these programs
are sub-optimal (63,64). Problems with optimal participation in
such programs involve patient factors, physician factors, and system
factors. Reviews have suggested ways of addressing each of these
problem areas.
In
conclusion, CV specialists should indeed be champions of prevention.
There are useful examples in the literature to guide even the busiest
specialists, including those in private practice (20,65-67) to meet
this challenge. In addition to the role of CV specialists as champions
for their own patients, CV specialists possess distinctive knowledge
and skills that should be shared with other physicians through preventive
cardiology educational sessions, promotion of optimal practice patterns,
and leadership in local preventive cardiology practices. The CV
specialist is "the expert" on prevention of CVD and typically
possesses superior knowledge about the most up-to-date preventive
strategies available (68,69). It is logicaland appropriatefor
specialists to share this knowledge more widely with colleagues
and to champion the broader adoption of evidence-based preventive
and CV rehabilitation services in the community.
What
Is the Role of Academic Preventive CV Specialists?
What is the role of academic preventive CV specialists? Is
there a need for subspecialty preventive cardiologists? With
the burden of CV illness increasing by 30% to 40% over the next
20 years and with over two million cases of heart failure in America
today, the need for a preventive academically oriented CV specialist
has never been greater (70,71).
In addition, patients are not meeting National Cholesterol Education
Program targets for low-density lipoprotein cholesterol, many patients
do not meet the Sixth Report Joint National Committee VI on Prevention,
Detection, Evaluation, and Treatment of High Blood Pressure (JNC
VI) targets for BP control, and over five million Americans are
likely to have insulin resistance syndrome, the precursor to full-blown
diabetes. Addressing this need will most certainly improve the care
delivered by a variety of physician specialties and allied health
care professionals, but the need for a preventive academically oriented
CV specialist has never been greater.
With
current CV training focused primarily on subspecialization in either
interventional/electrophysiologic cardiology or noninvasive imaging
cardiology, there are very few CV specialists focusing on the ever-increasing
challenge of prevention. Although generalists may have some understanding
of this field, the complex interplay of lipid disorders, hypertension,
and type II diabetes makes preventive cardiology a subspecialty
of its own (27). Furthermore, there is a progressive increase in
the complexity of risk assessment (genetics, novel risk factors,
testing strategies, and so forth) and in the range of interventions
(e.g., drugs). Finally, there is evolving evidence that CV specialists
perform better in these tasks than generalists (72). Therefore,
there is a clear role for the academic CV preventive specialists
and a need to promote such a subspecialty. A model to consider is
the academic CV specialist defining the field and contributing to
research in prevention while co-participating in the delivery of
preventive services with the primary care physician and allied health
professionals.
What
role should preventive CV specialists play in the division of cardiology?
Preventive CV specialists should not only provide consultation
to the primary care physician, when required, but should also provide
expertise to colleagues in the division of cardiology through subspecialty
consultation for refractory patients (as done by other internal
consultations such as electrophysiology, heart transplantation,
and the like). Preventive CV specialists should also develop educational
initiatives and leadership in out comes oriented research. A preventive
cardiology clinic is vital for supporting clinical activities and
should involve colleagues from other subspecialties (e.g., nephrology,
diabetology) and allied health professionals (e.g., dieticians,
social workers). This preventive cardiology program would serve
as the foundation for educating medical students, house officers,
and fellows in the comprehensive diagnosis and management of CV
risk (16).
Is
academic achievement more difficult in prevention? Many large
scale randomized trials and large cohort studies have been led by
academic preventive CV specialists. These trials, including the
Scandinavian Simvastatin Survival Survey and Heart Outcomes Prevention
Education have had a significant impact on public health. In the
future, preventive cardiologists, who have a unique understanding
of the research questions before them, should lead these research
initiatives. There is no question that the field of academic preventive
CV is evolving. Academic recognition is disproportionately higher
for basic and translational research than for outcomes research
(seen as less cutting-edge). Inadequate funding for preventive cardiology
is a significant barrier to academic achievement, and a lack of
funding often leads to dependence on the pharmaceutical industry
for support. Funding must be increased to a level of parity with
other CV research if this subspecialty is to survive. As an epidemic
of CVD evolves, measures to reward and recognize excellence in academic/preventive
research in cardiology, and education must be undertaken in order
to recruit young investigators to this field (73).
Are
there enough preventive CV specialists? Relative to the increasing
burden of CV illness, there is a significant shortage of academic
preventive CV specialists, primarily because of the relatively small
number of training programs available to cardiology fellows with
specific preventive subspecialty training. For those universities
with training programs, there are no clear standards for subspecialty
qualification. Fortunately, the updated COCATS will provide an overview
of Level III training that is focused on academic preventive CV
specialists (12). As outlined in COCATS, it is anticipated that
each academic program should have at least one or two full-time
academic preventive CV specialists to meet the needs as outlined.
Reinstitution of effective training programs such as the NHLBI-sponsored
Preventive Cardiology Academic Awards, which did much to supply
the currently trained academic preventive cardiologists should be
considered.
How
might the academic CV preventive specialist help foster an effective
partnership between the CV field and public health? Because
CV prevention is a multidisciplinary endeavor, public health outcomes
research needs to be directed by experts knowledgeable in the complex
interactions of the various factors. Educational initiatives for
the public at large, patients at high risk, and the medical community
as a whole must be championed by those with the highest level of
expertise. Comprehensive national faculty development workshops
that focus principally on instructional development have been found
effective in achieving a broad range of educational initiatives
guided toward the specialists and toward the public (74).
The
preventive CV specialist would ideally have formal clinical training
as well as a Masters degree in public health or similar expertise
in outcomes research. Such a specialist would serve as a natural
bridge between public health issues and the way those issues affect
frontline cardiology. The medical and the public health community
are in constant need of education and feedback in the management
of conventional CV risk factors. This would be a natural role for
the academic preventive CV specialist and could conceivably lead
to better adherence to national guidelines and evidence-based medicine.
Task
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