Informing physicians about promising new treatments for severe illnesses

Physicians are increasingly informed of promising new treatments for severe illnesses through unconventional communications such as press releases, press conferences, and direct mailings. These highly publicized announcements disseminate information quickly, often many months before new data are presented at medical meetings or published in peer-reviewed medical journals. Such unconventional communications, however, usually do not provide sufficient detail for physicians to evaluate new studies, answer patients' questions, or make recommendations. We suggest that physicians would be better informed about therapeutic advances through (1) expanded information in unconventional communications, (2) increased availability of information from the Food and Drug Administration, (3) early submission and accelerated review of key medical journal articles, and (4) expanded use of on-line computerized information sources. A commitment to inform physicians better about promising new treatments may help save or prolong the lives of patients with severe illnesses.

Withholding and withdrawal of life support from the critically ill

We investigated decisions to withhold or withdraw life support from patients in the medical-surgical intensive care units at the Moffitt-Long Hospital of the University of California and San Francisco General Hospital, from July 1987 through June 1988. Among 1719 patients admitted to the two intensive care units, life support was withheld from 22 (1 percent) and withdrawn from 93 (5 percent). The reason for limiting care was poor prognosis. Of these 115 patients (18 of whom were considered brain-dead), 89 died in the intensive care unit (accounting for 45 percent of all deaths there), and all but 1 of the remaining patients died after transfer from the intensive care unit. Thirteen (11 percent) had earlier expressed the wish that their terminal care be limited, but this affected care in only four cases. Only 5 of the 115 patients made the actual decision to limit care; the others were incompetent at the time. Of the latter, 102 had families who participated in the decision; family members of the other 8 incompetent patients could not be found, and the decisions were made by physicians. Only 10 families initially disagreed with the recommendations to limit care, and they later agreed. The median duration of intensive care among the patients from whom life support was withheld or withdrawn was eight days at Moffitt-Long Hospital and four days at San Francisco General, as compared with medians of three and one days, respectively, for other patients who died in the intensive care units. We conclude that although life-sustaining care is withheld or withdrawn relatively infrequently from patients in the intensive care unit, such decisions precipitate about half of all deaths in the intensive care units of the hospitals we studied. In most of these cases the patients are incompetent, but physicians and families usually agree to limit care.

Ethical dilemmas in HIV infection

As the AIDS epidemic continues to claim lives, the issues of testing, confidentiality, and refusal to care for seropositive patients generate increasing debate and concern among health care workers, legislators, and the general public. Protecting the uninfected from exposure to HIV, providing adequate medical care and counseling to HIV-positive persons, and preventing discrimination are necessary and immediate goals. Adherence by practitioners to both the current legislation on AIDS and the ethical imperatives of the health professions will facilitate adequate access to health care for all persons with AIDS. It will also provide necessary guidelines for issues of confidentiality.

Assessing decision-making capacity

Physicians frequently are asked to assess whether a patient has the capacity to make informed decisions about his or her medical care. Such assessments may be difficult and controversial. There are few explicit legal standards for judging competency to make medical decisions. Furthermore, clinical practices for evaluating decision-making capacity are problematic. The following case illustrates some of these problems.

Mrs. C., a 74 year old widow with congestive heart failure, angina pectoris, and mild dementia, has been admitted to the hospital for shortness of breath and chest pain. In the past three years she has suffered two heart attacks. During the past two months, her symptoms have worsened despite several medications, including maximally tolerated doses of diltiazem, furosemide and enalapril. She now develops shortness of breath and chest pain when walking one block. Because there are no other medical treatments for her condition, her physician recommends angioplasty or bypass surgery in order to ameliorate her symptoms.

To tell or not to tell: the ethical dilemmas of HIV test notification in epidemiologic research

Epidemiologic studies involving HIV (human immunodeficiency virus) antibody testing create ethical dilemmas, particularly about notifying asymptomatic seropositive subjects. Four study designs address this problem: mandatory notification, optional notification, anonymous testing, and blind testing. No single design consistently optimizes the trade-off between valid and ethical research. Each strategy differs substantially from the others in its effect on response rates, bias, ability to perform longitudinal studies, numbers of subjects who learn their test results, and the number of subjects counseled about HIV risk reduction. Both local institutional review boards and potential subjects of study (and their sexual partners) should participate in decisions regarding the conduct of sensitive AIDS (acquired immunodeficiency syndrome) research.

Decisions about resuscitation: inequities among patients with different diseases but similar prognoses

STUDY OBJECTIVE

To assess whether decisions about "do-not-resuscitate" (DNR) orders are made equitably in patients with different diseases but similar prognoses.

DESIGN

Retrospective cohort study.

SETTING

Three teaching hospitals: a university referral center, a county hospital serving a largely indigent population, and a Veterans Administration hospital.

PATIENTS

Consecutive patients with any of the four following discharge diagnoses: the acquired immunodeficiency syndrome (AIDS) (100 patients); unresectable non-small-cell lung cancer (51 patients); cirrhosis with esophageal varices (51 patients); and severe congestive heart failure with coronary artery disease (115 patients).

MEASUREMENTS AND MAIN RESULTS

Do-not-resuscitate orders were written for 52% of patients with AIDS and 47% of patients with cancer but for only 16% of patients with cirrhosis and 5% of patients with congestive heart failure (P less than 0.0001). Although DNR orders were associated with functional and mental status, reason for admission, and severity of illness, the strong association between DNR orders and disease category persisted after adjustment for these potential confounders by multiple logistic regression. A survey of housestaff showed that DNR orders were discussed more frequently with patients who had AIDS or lung cancer than with patients who had cirrhosis or heart failure, despite an accurate understanding of the generally similar prognoses among the four groups.

CONCLUSIONS

Despite relatively similar prognoses, patients with AIDS or lung cancer are much more likely to receive DNR orders than patients with cirrhosis or severe congestive heart failure. This discrepancy cannot be explained by differences in severity of illness among patients or by misunderstandings of prognosis by clinicians. From our data, we cannot determine if patients with cirrhosis or heart failure receive too few DNR orders or if patients with AIDS or lung cancer receive too many. Our findings should encourage physicians to determine the preferences of patients about life-sustaining treatments more equitably.

Community-acquired bacteremia in patients with acquired immunodeficiency syndrome: clinical presentation, bacteriology, and outcome

PURPOSE

Community-acquired bacteremia is an easily treatable infection occurring in patients with acquired immunodeficiency syndrome (AIDS). Although other studies have reported bacterial infections in AIDS patients, none have clearly described the clinical presentation of these patients. In this survey, we sought to define how frequently AIDS patients presented to our institution with community-acquired bacteremia; which organisms and sources of bacteremia were involved; the frequency that these patients presented with abnormal vital signs and white blood cell counts; and the in-hospital outcome of these patients.

PATIENTS AND METHODS

We retrospectively identified patients with AIDS hospitalized at San Francisco General Hospital in the 16 months between August 1986 and December 1987 in whom a positive blood culture was drawn within 24 hours of admission. Each of the patient's charts was reviewed for demographic data, relevant past medical history, clinical admission information, laboratory data, and discharge status.

RESULTS

We identified 44 episodes of community-acquired bacteremia in 38 patients with AIDS. These episodes represented approximately 5% of the admissions of patients with AIDS. The patients were young (mean age, 38 +/- 7 years), homosexual (43 of 44), and in some cases intravenous drug users (nine of 44). On admission, only 57% of the patients were febrile (temperature greater than 38.3 degrees C) and 23% of the patients presented with normal vital signs. Twenty-seven percent were neutropenic (less than 1,000 neutrophils/mm3). The most common sources of the bacteremia were pneumonia (10), an indwelling central venous line (eight), and cellulitis (seven). A total of 14 patients had no apparent source. Staphylococcus aureus, Streptococcus pneumoniae, and Escherichia coli were the most common organisms. Only four of the 44 patients died during their hospitalization.

CONCLUSION

We conclude that patients with AIDS and community-acquired bacteremia can present to the hospital without abnormal vital signs or white blood cell counts. Clinicians cannot depend on these data to assist them in excluding the possibility of bacteremia in patients with AIDS. In addition, due to the variety of organisms found in our survey, we recommend that broad-spectrum antibiotics should be the empiric therapy in patients with a suspected bacterial infection.

Voluntary screening for human immunodeficiency virus (HIV) infection. Weighing the benefits and harms

Voluntary screening for human immunodeficiency virus (HIV) infection may help prevent the spread of the HIV epidemic if persons who test positive alter behaviors that may transmit infection. Protecting persons from unknowingly being exposed to HIV infection must be balanced against respecting the autonomy of individuals being screened. Seropositive patients may feel a stigma and be subjected to discrimination if confidentiality of test results is breached. In patients without high-risk behaviors, the positive predictive value of HIV testing may be substantially increased if tests are done in reference laboratories and if further confirmatory tests are run on a second blood specimen. For persons with high-risk behaviors, HIV testing can be recommended to those who want to reduce uncertainty about their HIV status or whose medical care would change if they were seropositive. Health care workers can maximize benefits of screening and minimize harm by educating and counseling patients before HIV testing, discussing the confidentiality of HIV test results, urging patients to disclose positive test results to sex partners, and advising patients on how to reduce high-risk behaviors.

The physician's responsibility toward hopelessly ill patients. A second look

Physicians have a specific responsibility toward patients who are hopelessly ill, dying, or in the end stages of an incurable disease. In a summary of current practices affecting the care of dying patients, we give particular emphasis to changes that have become commonplace since the early 1980s. Implementation of accepted policies has been deficient in certain areas, including the initiation of timely discussions with patients about dying, the solicitation and execution in advance of their directives for terminal care, the education of medical students and residents, and the formulation of institutional guidelines. The appropriate and, if necessary, aggressive use of pain-relieving substances is recommended, even when such use may result in shortened life. We emphasize the value of a sensitive approach to care--one that is adjusted continually to suit the changing needs of the patient as death approaches. Possible settings for death are reviewed, including the home, the hospital, the intensive care unit, and the nursing home. Finally, we consider the physician's response to the dying patient who is rational and desires suicide or euthanasia.

Life-sustaining treatment for patients with AIDS

Physicians increasingly are being called upon to make difficult decisions about intensive care for patients with the acquired immunodeficiency syndrome (AIDS). AIDS patients who require intensive care have a poor prognosis; the in-hospital mortality rate of those receiving mechanical ventilation for P carinii pneumonia is 86-100 percent in most studies. However, in the past year, two studies documenting improved outcome have been published. Physicians should understand these outcome data and use well-established ethical principles to allow informed competent patients with AIDS to express their preferences regarding intensive care. Patients should be encouraged to provide advanced directives regarding life-sustaining treatments or to designate surrogate decision-makers to be consulted should they lose mental competence. The health care system should provide alternatives to the ICU for compassionate terminal care. However, arbitrary policies denying intensive care to AIDS patients for whom it is medically indicated and desired are not warranted.

Knowledge and concerns about acquired immunodeficiency syndrome and their relationship to behavior among adolescents with hemophilia

The knowledge and concerns regarding acquired immunodeficiency syndrome (AIDS) and their relationship to certain behaviors among adolescents with hemophilia, a pediatric risk group with human immunodeficiency virus (HIV) antibody positivity rate as high as 70% to 90%, are described. Information was obtained from 26 patients, 13 to 19 years of age, through the use of a confidential self-administered questionnaire and a semistructured interview. In general, subjects demonstrated a high level of factual knowledge regarding the cause, natural history, transmission, and prevention of AIDS. Despite this, participants frequently behaved in ways that were potentially harmful to themselves and others. Specifically, although aware of the importance of using condoms, sexually active adolescents with hemophilia were not practicing safe sex. Restriction in the use of heat-treated clotting factor because of concerns about AIDS was also frequently reported. Professionals providing AIDS education and counseling for these individuals need to be cognizant of the concerns and social skills of this population; they should focus not only on factual information but also on the social and situational pressures confronting these teenagers, which may be more immediate determinants of their behavior and well-being. As AIDS continues to spread into the general population, these findings have relevance to AIDS education and health policy efforts aimed at all adolescents.

Water nitrates and CNS birth defects: a population-based case-control study

The relation between maternal exposure to nitrates in drinking water and risk of delivering an infant with a central nervous system (CNS) malformation was examined by means of a case-control study in New Brunswick, Canada. All cases of CNS defects for a "high" and a "low" prevalence area of New Brunswick, for the years 1973-1983, were included in the study. Controls were selected randomly from the livebirth files for the province, matched on county of maternal residence and date of birth. One hundred and thirty (130) cases were identified and individually matched with two controls each. Individual water samples were collected from the case and control mother's address given on the birth or stillbirth records. The study revealed that the effect of nitrate exposure in water was modified by whether the source of the drinking water was a private well or a public municipal distribution system. Compared to a baseline nitrate level of 0.1 ppm, exposure to nitrate levels of 26 ppm from private well water sources was associated with a moderate, but not statistically significant, increase in risk (risk odds ratio = 2.30; 95% confidence interval = 0.73-7.29). If the source of drinking water was a municipal distribution system or a private spring, an increase in nitrate exposure was associated with a decrease in risk of delivering a CNS-malformed infant; however, these effect estimates were not statistically significant. The positive increase in risk with nitrate exposure from well water sources requires further study using a larger case series and a larger proportion of exposures to nitrate levels exceeding 5 ppm.

Artificial feeding--solid ground, not a slippery slope

Decisions about artificial feeding arouse more controversy than those involving any other life-sustaining treatment. Because food and water are generally considered basic elements of humane care, representing love and concern for the helpless, it is often thought that they must always be provided. In a landmark decision, the Supreme Judicial Court of Massachusetts ruled that a feeding tube could be removed from a patient in a persistent vegetative state if this was consistent with his previously expressed wishes. The case of Paul E. Brophy, Sr., is part of an emerging medical and legal consensus on the withholding of artificial feeding from adult patients. The view is growing that tube and intravenous feeding should be likened to other medical interventions and not to the routine provision of nursing care or comfort. Competent patients have the right to refuse such feeding. Feeding can also be stopped incompetent patients who have earlier stated such a wish.

Ethical dilemmas about intensive care for patients with AIDS

AIDS presents ethical dilemmas about intensive care. Even with intensive care the outcome for patients with AIDS is poor. Care givers have no ethical or medical obligation to provide futile care. Decisions concerning competent patients should be made jointly by physicians and the informed patients themselves. For incompetent patients decisions should be made jointly by physicians and appropriate patient-surrogates in light of the previously expressed wishes of the patients. Care givers should encourage patients with AIDS to express their preferences about life-sustaining treatment in order to avoid dilemmas should these patients later become incompetent. The AIDS epidemic may force more explicit discussions about the allocation of limited health-care resources, such as intensive care. Such allocation decisions should not discriminate against patients with AIDS.

The case of Claire Conroy: will administrative review safeguard incompetent patients?

The emotional issue of withdrawing feeding tubes from incompetent patients was reviewed recently by the New Jersey Supreme Court in the case of Claire Conroy. The court ruled that artificial feedings do not differ from other life-sustaining treatments and may be withdrawn or withheld if they are against the patient's wishes or best interests. The ruling rejected the tradition of shared decision making by physicians and families of incompetent patients. Instead, the court required the State Ombudsman to investigate cases like that of Claire Conroy as possible cases of elder abuse. Although such review was intended to safeguard vulnerable patients, it may have detrimental effects and impede humane decisions to withhold care. To minimize cumbersome decision-making procedures, physicians should discuss life-sustaining treatment in advance with patients who are still competent. Such discussions should be more specific than is now customary.

To redeem them from death. Reactions of family members to autopsy

Attitudes towards autopsy were examined in family members of 102 subjects who died in a university teaching hospital. The majority of responding families (88 percent) considered autopsy beneficial. Families permitting autopsy identified advancement of medical knowledge, comfort in knowing the cause of death, and reassurance that all appropriate care was given as the most important benefits. Fifty-five percent of the families of 40 subjects not undergoing autopsy declined permission and 45 percent had not been asked for such permission. The most frequent reasons given for not wanting autopsy were disfigurement of the body, stress of permitting autopsy, lack of information about autopsy, and family members' objections. Twenty-seven percent of 62 families permitting autopsy did not learn its results. Family members receiving results complained about long delays in receiving and complex terminology of autopsy reports. These findings suggest need for improvement in obtaining consent for autopsy, reporting autopsy results, and educating and counseling families of dying patients.

The Bartling case. Protecting patients from harm while respecting their wishes

The recent legal decision in the Bartling case affirmed that competent patients may refuse life-sustaining treatment, even if they are not terminal or comatose and even if physicians object because of ethics or conscience. However, clinicians may be concerned that patient refusal of treatment is not truly informed. Physicians have an obligation to benefit patients as well as to respect patients' wishes. They may fulfill both obligations by determining whether further medical treatment is indicated, identifying reversible conditions that may impair patient decision making, and checking that the patient's decision is informed.

Ethical dilemmas in caring for patients with the acquired immunodeficiency syndrome

Caring for patients with the acquired immunodeficiency syndrome (AIDS) raises ethical dilemmas about when to provide life-sustaining treatments such as mechanical ventilation and cardiopulmonary resuscitation. In addition, many patients become mentally incompetent and unable to participate in decisions. Homosexual men may want their lover or a friend to make decisions for them, but the patient's partner or friend cannot make these decisions unless he is legally designated. Decision-making guidelines may be hard to implement because caring for patients with AIDS is stressful. We describe three cases that illustrate the difficult ethical dilemmas and stresses of caring for these patients.

How do doctors discuss do-not-resuscitate orders?

Although patient preferences are important in decisions about "do not resuscitate" (DNR) orders, little is known about how physicians discuss these orders with patients. We asked 15 physicians to simulate discussing such orders with a patient. We found a striking variation in whether physicians explicitly asked for patient preferences, how they described cardiopulmonary resuscitation (CPR) and its possible outcomes and whether they made a recommendation to the patient about DNR orders. There was no pattern to the different amounts of information presented about CPR. Physicians gave conflicting reasons for how they individualized discussions with patients. Awareness of such different behaviors may stimulate physicians to examine what they say to patients about this sensitive and important topic and why they say it.

Do patients want to participate in medical decision making?

Although shared decision making by patients and clinicians has been advocated, little is known about the degree of participation in decision making that patients actually prefer or about clinicians' appreciation of these preferences. We administered questionnaires about three aspects of decision making to 210 hypertensive outpatients and to their 50 clinicians, who represented three types of medical practices. We found that 41% of patients preferred more information about hypertension; clinicians underestimated patient preferences for discussion about therapy in 29% of cases and overestimated 11% (k = .22); and 53% of patients preferred to participate in making decisions, while clinicians believed that their patients desired to participate in 78% of cases. Many patients who preferred not to make initial therapeutic decisions did want to participate in ongoing evaluation of therapy. Thus, clinicians underestimate patients' desire for information and discussion but overestimate patients' desire to make decisions. Awareness of this discrepancy may facilitate communication and decision making.

The death of Clarence Herbert: withdrawing care is not murder

Two physicians were charged with murder for discontinuing mechanical ventilation and intravenous fluids for a comatose patient. Although these unprecedented criminal charges were dismissed, the ruling may give physicians little legal reassurance. The case shows the problems in judging prognosis, resolving disagreements with staff, and communicating with families. Indirectly the case suggests how decision making and the care of dying patients may be improved. Physicians will continue to have responsibility for making difficult decisions according to their best medical and ethical judgment, despite legal uncertainty.

How good is communication between primary care physicians and subspecialty consultants?

We prospectively studied the communication between 27 referring practitioners and their consultants for 464 consecutive patient referrals from a general internal medicine group practice at a university medical center. The rates of referral among practitioners varied from 0 to 28.1 per 100 patients visits. Though referring physicians provided patient background information in 98% of the cases, they made explicit the purpose of the referral in only 76% of the cases. They contacted consultants directly in only 9% of the cases. In return, consultants communicated their findings to referring practitioners in only 55% of the consultations. Referring physicians who personally contacted consultants or who supplied them with more clinical information were more likely to learn the results of the consultation. While communication between the referring physicians and consultants in this setting is limited, it may be improved if referring physicians supply more clinical information to consultants and contact them directly.

Choice and use of blood lipid tests. An epidemiologic perspective

Serum cholesterol is a useful test in asymptomatic adults who are interested in preventing coronary heart disease (CHD). It guides the decision to recommend a fat-controlled diet to reduce the serum cholesterol level; this intervention probably decreases the risk of CHD in patients with high levels (eg, greater than 240 mg/dL), but not in those with lower levels (the majority). The potential effect of such intervention on absolute (attributable) CHD risk is relatively large in males and in patients with other risk factors. Dietary intervention probably has less effect on CHD risk than eliminating smoking or controlling hypertension. Lipid and lipoprotein tests other than cholesterol are not generally needed, although high-density lipoprotein cholesterol may be useful in certain situations. These epidemiologic considerations, tempered by the preferences of the patient, are useful for individualizing preventive medicine decisions.

The diagnosis of pulmonary embolus

In this issue The Western Journal of Medicine begins a new series, "Topics in Primary Care Medicine," that will present articles on common diagnostic or therapeutic problems encountered in primary care practice. These articles will address such frequently occurring problems as dizziness, pruritus, insomnia, shoulder pain and urinary tract infections. These problems usually do not fall into well-defined subspecialty areas and are rarely discussed thoroughly in medical school, house staff training, textbooks and journals. Often the pathophysiology is poorly understood and clinical trials to assess the effectiveness of diagnostic tests or therapies are often lacking. Nevertheless, these problems confront practitioners with practical management questions. The articles in this series will discuss new tests and therapies and suggest a reasonable approach even when definitive studies are not available. Each article will have several general references for suggested further reading. We hope this new series will be of interest and we welcome comments, criticisms and suggestions.

Frequency of ethical dilemmas in a medical inpatient service

We studied the frequency of ethical problems in a general medical ward at a university hospital, using a quasi-experimental prospective design. In the baseline period, ethical problems were determined by self-report of residents. In the intervention period, one of us (B.L.) was a participant-observer during attending rounds. Ethical problems were determined by consensus among the attending physician, resident, and participant observer. No significant differences between baseline and intervention periods were found in patient variations, admissions per resident, or rating of each resident's sensitivity to ethical issues. In the baseline period, seven (3.9%) of 179 cases involved ethical problems. In the intervention period, 16 (17%) of 92 cases involved ethical problems. This difference was significant. The data imply that residents underidentify ethical problems but that sensitization, sympathetic listening, information, and advice increase physician recognition of ethical problems.