Incidence of unwarranted implantation of permanent cardiac pacemakers in a large medical population

Main Approaches to Assessing the Quality of Drug Therapy in Cardiology

A competent choice of drug therapy in a specific clinical situation is a difficult and important task that a practical doctor must regularly solve in everyday practice, and the consequences of errors in this decision can be quite serious. Therefore, evaluation of the quality of the prescribed therapy is extremely important.

In the treatment of cardiovascular diseases, medicines that have a proven effect on the outcomes of the disease, primarily on mortality rates (so-called "life-saving drugs") acquire special significance. There are several classes of such drugs, and in different situations, their positive impact on the prognosis of the disease may be different. On the other hand, one should remember the so-called "drug-related problems" (DRP), which include contraindications to the prescription of certain drugs in a particular patient, the possibility of developing side effects of drug therapy, aggravated by polypharmacy, inter-drug interaction, improper dosage of drugs, etc.

In this publication, an attempt is made to identify the main components by which the quality of the prescribed therapy can be evaluated in the treatment of cardiovascular diseases: compliance of prescriptions with official instructions for preparations, modern clinical guidelines, adequate selection of a specific drug within the class, drug formulation, salt of the drug, evaluation of important safety parameters and efficacy of the prescribed drug. In addition, a review of the methods and scales of the composite evaluation of the quality of drug therapy developed to date has been conducted, as well as attempts to improve them and create new ones that continue to the present day. Nevertheless, none of the currently known methods for assessing the quality of therapy is not universal or devoid of shortcomings.

Most likely, a universal method of assessing the quality of the prescribed treatment may not exist. In its most general form, it can be said that treatment should be based on modern evidence-based medicine, which is usually reflected in the clinical guidelines, without contradicting the official instruction on the use of the drug, considering the presence of concomitant diseases, that are often the reasons of contraindications to prescribing those or other medicines.

The pathway to physician reimbursement for cardiac implantable electronic devices (CIEDs): a history and brief synopsis

Cardiac implantable electronic devices (CIEDs), despite their proven effectiveness in large clinical trials for a wide range of patients with arrhythmia and heart failure, are frequent targets for criticism regarding cost-efficiency and alleged overuse. Newer indications, such as sinus node dysfunction for pacemakers and primary prevention for implantable cardioverter-defibrillators, increased eligible patient population significantly. This lead to heightened scrutiny from payors and legislative agencies, such as prior authorization and mandatory registry participation. Despite the significant administrative burden, the efficiency of these measures to decrease abuse is not clear. In addition, professional societies, regulatory agencies, and payors may not always agree whether use of a device is appropriate for a given patient. The review focuses on past and current issues related to utilization of CIEDs, which lead to increased regulatory oversight, and the effort of professional societies, payors, and governmental agencies to improve access to these life-saving therapeutical modalities while maintaining a just and cost-efficient healthcare system.

Avalanche or Glacier?: Health Care and the Demographic Rhetoric

Claims that the health care system is about to be engulfed in a “wave of grey” have become commonplace. Recent cost escalation is commonly attributed to the aging of the population, and there is no shortage of dire warnings about the cost implications of the even more dramatic aging, and costs, still to come. These claims have been largely unsubstantiated. Yet they persist for a number of reasons. First, over long periods of time, the effects of demographic trends can be (and probably will be) quite substantial. But these effects move like glaciers, not avalanches. Second, the effects of aging populations on some types of services which cater differentially to seniors will be much more dramatic; observers of those sub-sectors (such as long-term care) tend to extrapolate that sector-specific experience to health care generally. Third, at the “coal-face,” health care providers are seeing their practices become ever more dominated by seniors. They mistake this increased “presence” of patients aged 65 and over in their practices as evidence of the effects of demographic changes. In this paper we discuss each of these sources of error about the effects of aging population on health care costs. We focus primarily on the confusion between changes in patterns of care for particular age groups, and changes in overall levels of care. Quite extensive empirical evidence has been collected over the past decade from analyses of British Columbia data bases, and these findings are not unique, in Canada, or beyond. The common finding of this body of research is that population aging has accounted for very little of the increase in health care costs over the past three decades, in Canada or elsewhere. Health care utilization has increased dramatically among seniors. But this has had less to do with the fact that there are more of them, than with the fact that the health care system is doing much more to (and for) them than was the case even a decade ago. This suggests that the appropriate care of elderly people should be a central issue for health care policy and management, but that demographic issues are, in the short run at least, largely a red herring.

Understanding and applying a resource-based relative value system to your neurosurgical practice

The payment policy for United States physicians was formerly based on determination of customary and prevailing charges from their fee schedules. Rapidly growing health care expenditures in the 1980s led to a fundamental change in payment reimbursement in which the new system was based on the resource costs to the physician for providing health care services. This reform highlights the significant regulatory morass that has come to burden the health care industry. One of the most critical changes in physician reimbursement was caused by the Congressional mandate that led to the development of a resource-based relative value scale (RBRVS) for the creation of the Medicare physician fee schedule. Most physicians, however, have limited familiarity with the RBRVS system, which now serves as the basis for Medicare-related physician reimbursement as well as many third-party payers. A historical review of the development of the RBRVS will serve as the basis for applying the methodology to improve the effectiveness of the neurosurgeon's practice.

Walking the tightrope on Medicare reform

A central controversy in the debate about Medicare is whether the program spends too much money or whether instead it should be expanded to cover more. I consider the value of increased Medicare spending. I argue that on average Medicare spending is worth it: the health gains brought by medicare have been greater than their cost. At the margin, however, services are overused and have low value. Medicare reforms need to promote the high average value of care while eliminating care of low value. Many of the proposed reforms fall short of this goal.

Assessing the predictive validity of the RAND/UCLA appropriateness method criteria for performing carotid endarterectomy

We assessed the predictive validity of an expert panel's ratings of the appropriateness of carotid endarterectomy by comparing ratings to the results of subsequent randomized clinical trials. We found the trials confirmed the ratings for 44 indications (covering almost 30% of operations performed in 1981) and refuted the ratings for none.

Sex differences in selection of pacemakers: retrospective observational study

OBJECTIVE

To evaluate the effect of patients' sex on selection of pacemakers.

DESIGN

Retrospective univariate and multivariate analysis of a large database.

SETTING

German central pacemaker register.

SUBJECTS

Records collected at the register for 1992 and 1993 (n=31 913), covering 64% of all implantations in Germany.

MAIN OUTCOME MEASURE

Probability of receiving a single chamber, dual chamber, or rate responsive pacemaker in relation to sex.

RESULTS

Univariate analysis showed that women were more likely to receive single chamber pacemakers and less likely to receive dual chamber or rate responsive systems than men. After demographic and clinical variables were controlled for, women were still more likely to receive a single chamber system (atrial pacing: odds ratio 0.89, 95% confidence interval 0.74 to 1.07; ventricular pacing: 0.85, 0.80 to 0.92) and less likely to receive a dual chamber (1.20, 1.12 to 1.30) or a rate responsive system (1.26, 1.17 to 1.37) than men.

CONCLUSIONS

The data suggest sex differences in the selection of a pacemaker system which cannot be explained by the underlying cardiac disorder. Further research is needed to evaluate why guidelines for implanting pacemakers are not better adhered to.

Development, use, and evaluation of clinical practice guidelines

The development and use of practice guidelines, if framed as recommendations for best practices in the prevention, diagnosis, treatment, and management of occupationally related health concerns and disability, can improve the quality of occupational medical practice and worker health and well being. Adherence to guidelines should improve the efficiency and effectiveness of prevention, care, and disability management by reducing the present wide variance in practices and then by moving the mean or median of process and outcome statistics toward recommended levels. The information developed for guidelines can also be used for patient discussion and expectation management. Practicing in evidence-based, agreed-upon ways should also make occupational medical practices more defensible. Guidelines should be explicit, be based on a review of the available evidence and benefits vs risks, have clear medical logic, link findings to diagnosis to treatment ot prevention, be time-based, and avoid recommending unproven approaches as a last resort. If possible, they should be reviewed and tested for usability. Guidelines that start with common occupational health concerns are best suited to prevention and outpatient care, because patients present in this way. The contents of a useful occupational health guideline would include a statement of purpose and scope, the method of development; the authors' and reviewers names and affiliations; an analysis of the specificity, sensitivity, and predictive power of mechanisms of illness or injury, symptoms, signs and tests; findings that point to a serious or emergent condition requiring immediate referral or treatment; diagnostic criteria; and initial treatment, including work with the patient in a therapeutic partnership. The guideline should also present information on factors known to be associated with work, and predictors of delayed recovery. Disability-duration statistics and methods of matching job requirements with worker abilities are also helpful. Guidelines should then outline reassessment of those patients whose health concerns remain after a reasonable recovery period. The recommendations should again be evidence-based and conform to the other attributes listed above. A discussion of management after reassessment, including behavioral referral, further testing, and procedures, is also quite useful. Recommendations for restoration of function and return to work complete guidelines focused on diagnosing, treating, and resolving activity limitations among workers. Simply developing and publishing guidelines has not resulted in improvement in practice. However, if used as the basis for peer-group interactions and actions by occupational health opinion leaders, guidelines can contribute to marked improvements in quality, worker satisfaction, and worker health.

Quality improvement in health care organizations: a general systems perspective

A systems analysis of healthcare organizations demonstrates that methods for improving quality involve the effective feedback regulation of key organizational performance parameters. Information flow is impaired in dysfunctional healthcare organizations, which often disregard significant clinical problems while preferentially tracking nonclinical indicators and clinical data considered most likely to meet the organization's standards. Such organizations thus achieve "pseudocompliance" with external requirements, but do not systematically work to improve the quality of clinical care or their performance as organizations. Efforts by government agencies and national organizations to foster quality improvement activities have had limited success precisely because local organizations perceive these efforts as externally imposed. Leaders' anxieties about their own and their organizations' autonomy, control, and performance can cause unwillingness to review data indicating performance problems, oversimplification of decision criteria, and reluctance to formulate meaningful conclusions and act on them. Contemporary quality improvement models, such as Continuous Quality Improvement (CQI) and Total Quality Management (TQM), reconnect leaders to their organizations' quality processes by emphasizing the leaders' roles in promoting quality as an organizational value, setting meaningful quality goals, and actively u sing information to improve organizational effectiveness.

A perspective on the corporate transformation of health care

The ever-increasing ownership of health service providers, suppliers, and insurers by investor-owned enterprises presents an unforeseen complexity and diversity to health care delivery. This article reviews the history of the for-profit invasion of the health sector, linking corporate purchaser directions to the now dominant mode of delivery in managed care. These dynamics require unceasing reassessment while the United States embarks upon implementation of national health care reform.

Permanent cardiac pacemakers in the elderly

OBJECTIVE

To review (1) Changes in cardiac impulse generation, conduction, and ventricular filling in normal aging and disease; (2) Pacemaker technology and nomenclature; (3) Expert guidelines about pacemaker use; (4) Studies of pacemaker effectiveness and utilization.

DESIGN

Articles were identified through a Medline search, review of articles' bibliographies, and contact with pacemaker manufacturer representatives for information on device features and costs. These articles were reviewed, and the relevant data are presented.

RESULTS

Abnormalities in impulse generation and conduction are common in the elderly. Pacemaker use is higher in the elderly than in other population groups. Hemodynamic changes associated with aging include an increased contribution of atrial contraction to ventricular filling. Pacemakers, which maintain the synchrony between the atria and ventricles, may be particularly advantageous in the elderly for this reason. Rate-responsive ventricular pacemakers improve the quality of life compared with fixed rate devices in some patients over the age of 75. Dual-chamber, sequential pacemakers are more likely to reduce symptoms of pacemaker syndrome than ventricular pacemakers and probably also prolong survival and reduce risk of atrial fibrillation in certain groups of patients. However, dual chamber devices are more expensive and require more frequent follow-up. Pacemaker utilization can vary widely by region. Decisions about pacemakers require explicit tradeoffs between risk and quality of life on one hand and cost on the other. In many clinical situations, there is controversy as to whether pacemakers should be used.

CONCLUSIONS

Pacemakers provide definite benefits to some patients, whereas in others, the likelihood of benefit is uncertain. More sophisticated devices may provide some additional benefit, but they are more costly. Further data is still required to define precisely which groups of patients substantially benefit from complex and expensive pacing modalities compared with simpler ones.

A guide to health care reform

There are four rationales for health care reform: increasing the efficiency of health delivery; reforming the market for health insurance; providing universal coverage; and reducing the federal deficit. These goals are reflected in most reform proposals. Achieving these goals involves several problems, however. Paying for universal coverage may lead to labor supply or demand reductions. In addition, reform involves large federal risks that must be dealt with through deficit financing, reduced benefits, or lower subsidies.

Racial differences in the elderly's use of medical procedures and diagnostic tests

OBJECTIVES

This study sought to examine racial differences in the use of medical procedures and diagnostic tests by elderly Americans.

METHODS

We used 1986 physician claims data for a 5% national sample of Medicare enrollees aged 65 years and older to study 32 procedures and tests. For each service, we calculated the age- and sex-adjusted rate of use by race and the corresponding White-Black relative risk.

RESULTS

Whites were more likely than Blacks to receive 23 services, and for many of these services, the differences in use were substantial. In contrast, Blacks were more likely than Whites to receive seven services. Whites had a particular advantage in access to higher-technology or newer services. Racial differences in use persisted among elders who had Medicaid in addition to Medicare coverage and increased among rural elders.

CONCLUSIONS

There are pervasive racial differences in the use of medical services by elderly Americans that cannot be explained by differences in the prevalence of specific clinical conditions. Financial barriers to care do not fully account for these findings. Race may exacerbate the impact of other barriers to access.

Medicare patients' use of overpriced procedures before and after the Omnibus Budget Reconciliation Act of 1987

OBJECTIVES

Under the Omnibus Budget Reconciliation Act of 1987, Medicare reduced physician fees for 12 procedures identified as overprices. This paper describes trends in the use of these procedures and other physician services by Medicare patients during the 4-year period surrounding the implementation of the 1987 budget act.

METHODS

Medicare physician claims files were used to develop trends in physician-services use from 1986 to 1989. Services were grouped into four categories: overpriced procedures, other surgery, medical care, and ancillary tests.

RESULTS

Growth in the volume of overpriced procedures slowed substantially after the 1987 budget act was implemented. Moreover, the reduction in the rate of volume growth for these procedures differed little among specialities or areas. In comparison, the rate of volume growth fell modestly for other surgery, was unchanged for medical care, and increased for ancillary tests.

CONCLUSIONS

Increases do not necessarily occur in the volume of surgical procedures whose Medicare fees are reduced. Although the conclusions that may be drawn from a descriptive analysis are limited, these findings suggest that concerns that the resource-based Medicare fee schedule will lead to higher surgery rates may be unwarranted.

Premature adoption and resolution of medical technology: illustrations from childbirth technology

The first part of this article discusses four forces underlying the emergence, adoption, and routinization of medical technology: key societal values, policies of the federal government, reimbursement policies, and economic incentives. It also addresses a set of impacts resulting from increased reliance on medical technology. The second part of the paper assesses three examples of childbirth technology: electronic fetal monitor, obstetric ultrasound, and cesarean birth. The tendency toward premature and excessive use of technology is especially strong in the area of childbirth and technology.

DRGs: the road to hospital efficiency

In this paper, the effects of using diagnosis-related groups (DRGs) as the basis of a hospital funding mechanism and within a global budgeting mechanism are reviewed. Most forthcoming is the indeterminate effect of DRGs as a funding mechanism. By controlling only the price of hospital care, such systems remain vulnerable to compensatory increases in patient throughout, cost shifting and patient-shifting. Whether the use of DRGs has substantially reduced hospital cost per case is also not clear cut. Effects on patient outcome have not been adequately assessed. At this stage, use of DRGs within a system of global budgeting will simply focus attention on the current average costs of treating cases without consideration of whether such average costs represent efficient clinical practice. Efficient clinical practice is better established through use of less sophisticated techniques, such as clinical budgeting and cost-effectiveness analysis. The failure of more global budgeting in the past has been that patient outcome has not been monitored. Data on outcome are crucial to determining efficiency. Once efficient clinical practice is established through budgeting, DRGs could be calculated according to efficiency criteria rather than current average cost.

Sudden cardiac death, implanted defibrillation, and clinical electrophysiology

A mere 25 years ago, the technique of external defibrillation became the starting point for the development of clinical electrophysiology by permitting routine use of endocavitary programmed electrical stimulation of the heart without undue risk. Major advances in knowledge of clinical arrhythmias and the understanding of their mechanisms were, thus, permitted. Mirowski's implanted defibrillator also constituted a major breakthrough therapeutically; unfortunately, however, some 10 years later, it has not yet induced similarly hoped for consequences in terms of progressing knowledge concerning lethal arrhythmias, largely due to the absence of Holter functions in the implanted devices. As a result of this, in our opinion, better established therapeutic indications are still needed. The reasons for the present situation, we believe, may be partly technical but are conceptual as well. The key point is that even the clear demonstration of the great practical efficacy of a therapeutic tool does not exempt us from the obligation of determining the mechanisms of this effect.

Changing cancer care in the 1990s and the cost

Progress in cancer research in the 1980s has led to predictions of a technologic explosion in the 1990s. Yet, with this progress there has been a groundswell of protest at the rapidly escalating costs of health care. More than $600 billion was spent on health care in 1989 and estimates of $1.5 trillion are made for the year 2000. Repeated attempts at cost containment have failed. It has been suggested that only by retarding technologic advances will we be able to control costs. Many observers believe that rationing of health care is the only solution, but new technology not only improves cancer care, it often decreases cost. It is not rational to retard advances that may later reduce costs, nor is it humane to retard advances that improve care, even if they cost more. In identifying priorities we should begin with the principle that treatments be restricted to clinical trials unless they have been demonstrated to prolong survival or improve the quality of life. If the payers reimburse procedures in an investigative setting, they will be on firm ground when they deny support for those same procedures outside an investigative setting. This is both an ethical and a fiscally responsible position for the third parties to take. It will not be easy for the profession or for the payers to deal with these problems. Public education and patient education will be key elements of any solution. Shifting the blame from politician to payer to professional will only make the problems worse.

Minding our Ps and Qs? Financial incentives for efficient hospital behaviour

In this paper, the empirical evidence addressing the particular issue of how hospitals may be reimbursed is reviewed. Most forthcoming is the indeterminate effect of prospective payment systems using diagnosis-related groups as a means of controlling costs. Such systems, by controlling only the price of hospital care, remain vulnerable to compensatory increase in patient throughput, cost-shifting and patient-shifting despite hospital cost per case being reduced. Health maintenance organisations have been shown to reduce hospital costs, but their effects on patients selection and patient outcome are unclear. Selective contracting in California (similar to the U.K. Government's proposed internal market) has also been shown to reduce costs by affecting both the price and quantity of hospital care. But these effects have occurred only in areas with high concentrations of hospitals. Global and clinical budgeting (which control price times quantity) seem to offer the most potential for cost reduction whilst maintaining patient outcome. By monitoring both cost and outcome within clinical budgets it should be possible to reduce wasteful variations in health care and so establish more efficient hospital practice.

Predicting the appropriate use of carotid endarterectomy, upper gastrointestinal endoscopy, and coronary angiography

BACKGROUND AND METHODS

In a nationally representative population 65 years of age or older, we have demonstrated that about one quarter of coronary angiographies and upper gastrointestinal endoscopies and two thirds of carotid endarterectomies were performed for reasons that were less than medically appropriate. In this paper we examine whether specific characteristics of patients (age, sex, and race), physicians (age, board-certification status, and experience with the procedure), or hospitals (teaching status, profit-making status, and size) predict whether a procedure will be performed appropriately.

RESULTS

In general, we found that little of the variability in the appropriateness of care (4 percent or less) could be explained on the basis of standard, easily obtainable data about the patient, the physician, or the hospital. For all three procedures, however, performance in a teaching hospital increased the likelihood that the reasons would be medically appropriate (P = 0.09 for angiography, P = 0.30 for endoscopy, and P less than 0.01 for endarterectomy). In addition, angiographies were more often performed for appropriate reasons in older or more affluent patients (P less than 0.01 for both). Being treated by a surgeon who performed a high rather than a low number of procedures decreased the likelihood of an appropriate endarterectomy by one third, from 40 to 28 percent (P less than 0.01).

CONCLUSIONS

Appropriateness of care cannot be closely predicted from many easily determined characteristics of patients, physicians, or hospitals. Thus, for the present, if appropriateness is to be improved it will have to be assessed directly at the level of each patient, hospital, and physician.

Patient, provider and hospital characteristics associated with inappropriate hospitalization

To determine the relation between patient and provider characteristics and inappropriate hospital use, we examined adult nonpregnancy hospitalizations from a randomized trial of health insurance conducted in six sites in the United States. Appropriateness of inpatient treatment was based on medical record review; patient characteristics on sociodemographic, economic, and health status; and provider characteristics on descriptors of physician practice and hospital facilities. Twenty-seven percent of admissions attended by physicians licensed for more than 15 years were judged inappropriate, compared to 20 percent for younger physicians. Admissions were more likely to be inappropriate if the patient was female (27 percent compared with 18 percent). Controlling for patient and provider characteristics reduces but does not eliminate the differences in the appropriateness of inpatient care across the study's six sites. Differences in available provider and patient characteristics do not account for geographic differences in inappropriate hospitalization in this study.

Practice standards: implications for the internist

Pressure for national standards of medical practice is increasing from cost control initiatives, medical malpractice liability, and the desire to simplify complex practice problems. Good standards need to be academically sound, focused enough to be clinically useful, yet flexible enough to allow for the realities of practice. Standards have already been created by several professional societies, including anesthesiology and cardiology in internal medicine. Although physician education is primary, controlling the use of expensive new technologies is an unwritten but important secondary goal. While standards have reduced malpractice liability in some professional groups, some clinicians are concerned that standards will be too academic and unrealistic. Currently, third-party payers are watching the development of practice standards but are hesitant to use them as criteria for determination of reimbursement. The federal government has a major interest in practice standards as a means of both monitoring quality of care and controlling costs. A number of agencies are studying the development of standards and their implications for use. Recent articles questioning the usefulness of common diagnostic tests and even the routine physical examination have raised concern among internists that restriction of practice and reimbursement will follow. Some evolving standards, such as screening for breast cancer, seem to ignore the realities of clinical practice and may generate more cost than they save. Internists need to provide input as standards are developed to guarantee appropriateness and feasibility.

Appropriateness of acute medical care for the elderly: an analysis of the literature

Over the past 30 years, an explosion in health care expenditures has occurred. Prior to 1960, health care accounted for 4.4% of the U.S. Gross National Product; today it is 11%. Before rational solutions to controlling this rise can be proposed, we must determine whether the care that we are currently paying for is appropriate to the needs of the elderly. This paper analyzes the literature regarding appropriateness of acute care provided to the elderly. We identified 17 articles that explicitly cited appropriate or inappropriate care (including under-, over- and misuse) provided in hospital and ambulatory settings and for procedures, and 19 articles that presented data on the appropriateness of medication use in the elderly. Virtually every study included in this review found at least double-digit levels of inappropriate care. Perhaps as much as one-fifth to one-quarter of acute hospital services or procedures were felt to be used for equivocal or inappropriate reasons, and two-fifths to one-half of the medications studied were overused in outpatients. The few studies that examined underuse or misuse of services also documented the existence of these phenomena. This was especially true for the ambulatory care of chronic physical and mental conditions and concerned the use of low-cost technologies (visits, preventive services, some medications). Thus, we conclude that there appears to be a substantial problem in the matching of acute services to the needs of elderly patients. This mismatch occurs both in terms of overuse and underuse, at least for areas where research has been conducted.

Phenotypic variation of Staphylococcus epidermidis in infection of transvenous endocardial pacemaker electrodes

Coagulase-negative staphylococci isolated from a patient with a pacemaker electrode infection were extensively evaluated by phenotypic and genotypic characterization. Findings from this evaluation were striking because different colony morphologic subtypes were recovered from blood and resected pacemaker electrodes. Staphylococci from each colony subtype (LBL, LBV, LBP, LBS) were identified as slime-producing strains of Staphylococcus epidermidis sensu stricto. Direct plating of isolates from a restricted electrode revealed a mixture of colony phenotypes when examined on a high-salt, low-glucose medium, Memphis agar. Bacteriophage typing employing 17 different phages and plasmid profile analysis were largely unsuccessful in further characterizing bacterial cells of each of the four colony morphotypes. On the other hand, restriction endonuclease analysis by EcoRI digestion of the chromosomal DNA demonstrated the probable common clonal origin of the four colony phenotypes.

Impact of prospective peer review on pacemaker implantation rates in Massachusetts

Preapproval of elective permanent pacemaker insertions in Medicare patients is now mandatory for reimbursement. Of 1,860 requests for approval of an initial pacemaker implant in Massachusetts, 1,494 (80.3%) met strict Medicare guidelines and were approved by a nurse reviewer, and 366 (19.7%) were referred to an independent physician because of a question of appropriateness of indication or type of pacemaker. Only five requests (0.27%) were denied because of an inappropriate indication for pacing. On a second review of these records, an additional eight pacemaker insertions (0.43%) were deemed to have been inappropriately approved. Comparison of the annualized number of pacemaker requests for the study period with those of the 3 years before mandatory approval revealed a reduction of only 3.7%. Thus, contrary to previous findings in other areas of the country, in Massachusetts, inappropriate pacemaker insertions are rare and the effect of the prior approval process is minimal.

Practice guidelines and standards: an overview

Organized medicine, insurance companies, regulators, and the peer review organizations are all interested in practice guidelines. Recently, the U.S. Congress established the Agency for Health Care Policy and Research, which is charged with overseeing the development of practice guidelines. If properly developed, disseminated, and used, practice guidelines should reduce the incidence of inappropriate care and help control costs. Although guidelines have been used by physicians for years, guidelines now being developed should be more comprehensive, specific, exhaustive, and--on the basis of the best scientific evidence of effectiveness and expert opinion--more effectively discriminate between useful and useless care. Practice guidelines can improve the quality of care when used voluntarily by physicians in practice, when used as standards for quality monitoring and assurance programs, and when used as the basis for reimbursement for services. All interested parties should share responsibilities for the research, development, and production of appropriateness criteria, their translation into guidelines and standards, and the dissemination and maintenance of the guidelines, including evaluation, revision, and updating.

Integrating practice guidelines with financial incentives

Practice guidelines, in whatever form, hold significant implications for the delivery and the financing of health care. Hence, great care must be taken in developing them. They must be scientifically sound and thus defensible. They must incorporate clinical perspectives and consider patients' preferences. They must cover appropriate as well as inappropriate services. They must foster creation and adoption of a rational payment system. What guidelines, in their best form, can do is enable physicians, faced with an overwhelming array of often conflicting information, to reduce some of the uncertainty they must cope with and to practice the most clinically effective medicine. For physicians to do so requires valid information from a credible source, most often in conjunction with appropriate financial incentives.

The effectiveness of pro cardiac pacemaker review in reducing implantation in the Medicare population

Cardiac pacemaker insertions experienced an explosive growth in utilization following the introduction of this highly beneficial technology. Cost considerations prompted critical evaluation of the appropriateness of their use and raised the specter of potential abuse. The Connecticut Peer Review Organization (CPRO) program of pacemaker review to Medicare patients, based on physician input, criteria setting, dissemination of information, and specialist peer review, resulted in a dramatic reduction in the insertion of permanent pacemakers with minimal need for denials and appeals.