Recognizing, reporting, and reducing adverse drug reactions.

Adverse drug reactions (ADRs) are underreported and consequently are an underestimated cause of morbidity and mortality. Recent epidemiologic evidence estimates that ADRs represent the fourth to the sixth leading cause of death. Public awareness is increasing as reports of ADRs and medication errors become more prevalent in the lay press. Reducing the number of ADRs can be accomplished by systems changes made at an individual and national level. At the individual level, increased diligence should be used with regard to reporting and documenting ADRs. At the national level, ADRs can be reduced by expanding the role of the arm of the Food and Drug Administration (FDA) responsible for postmarketing surveillance.

Patient perceptions of the capabilities of internists: a multi-center survey.

PURPOSE: Surveys conducted by the American College of Physicians-American Society of Internal Medicine have shown that the public has varying opinions about the capabilities of internists. However, the perceptions of patients seeking care from internists remain uncertain. We wished to determine how patients visiting general internists perceived them and discover whether patients understood the differences between internists and other primary care physicians. SUBJECTS AND METHODS: We surveyed established adult patients visiting three general internal medicine clinics in Georgia, Iowa, and Vermont. Patients answered 11 questions about their perceptions of an internist's scope of care and selected which of 24 diseases, symptoms, or examination skills they thought an internist could manage. RESULTS: Patients completed 601 (66%) of the 911 surveys distributed. Nearly half of patients (45%) confused internists with family physicians and 39% thought internists could treat children. Patients with college education were more than twice as likely to know that internists were not interns (Odds ratio = 2.6, 95% confidence interval 1.8 to 3.8, P < 0.001) compared with patients having less education. Only 50% of patients thought an internist was trained in women's health. Significantly more (P < 0.001) patients demonstrated confidence in an internist's ability to treat symptoms (76%) than treat specific diseases (59%) or perform clinical examinations (54%). CONCLUSIONS: Established patients seeking care in internal medicine clinics lack consensus on the capabilities of internists, especially on how they differ from other specialties. Continued public education efforts should be considered to promote better understanding of the role of the internist as a specialist in adult medicine.

A comparison of physicians' and patients' attitudes toward pharmaceutical industry gifts.

OBJECTIVE: To compare physicians' and their patients' attitudes toward pharmaceutical gifts. DESIGN: Survey of physicians and their patients. SETTING: Two tertiary-care medical centers, one military and one civilian. PARTICIPANTS: Two hundred sixty-eight of 392 consecutively surveyed physicians, 100 of 103 randomly selected patients at the military center, and 96 patients in a convenience sample at the civilian center completed the survey. MEASUREMENTS: Participants rated 10 pharmaceutical gifts on whether they were appropriate for physicians to accept and whether they were likely to influence prescribing. Patients found gifts less appropriate and more influential than did their physicians. About half of the patients were aware of such gifts; of those unaware, 24% responded that this knowledge altered their perception of the medical profession. Asked whether they thought their own physician accepted gifts, 27% said yes, 20% no, and 53% were unsure. For patients, feeling that gifts were inappropriate was best predicted by a belief that gifts might influence prescribing, while for physicians, the best predictor was knowledge of guidelines. CONCLUSIONS: Patients feel pharmaceutical gifts are more influential and less appropriate than do their physicians. Physicians may want to consider this in deciding whether to accept particular gifts. Broader dissemination of guidelines may be one means of changing physician behavior. At the same time, future guidelines should further consider the potentially different viewpoints of patients and physicians.

A prospective study to assess the effect of ambulatory teaching on patient satisfaction.

PURPOSE: To assess the effect of ambulatory teaching on patients' satisfaction. METHOD: In 1996, 103 adult patients presenting to the Walter Reed General Medicine Walk-in Clinic completed a patient-satisfaction questionnaire immediately following their visits, during which they were initially seen by a trainee (third-year medical student or intern) and then seen by a faculty preceptor. The questionnaire included five items from the validated Medical Outcomes Study (MOS)-9 questionnaire as well as two open-ended questions. Fourteen staff physicians, 13 students (49% of the visits), and 11 interns (51% of the visits) participated in the study. Satisfaction was analyzed by level of training, and the responses from the study patients were compared with the responses from 372 usual-care (i.e., non-teaching) patients from the same clinic, using the chi-squared test. RESULTS: The study patients were typically pleased with their encounters, rating their overall satisfaction as excellent (61%), very good (29%), or good (9%). Nearly two thirds of the patients rated their satisfaction with waiting time to be very good or excellent. Compared with the usual-care patients, the study patients reported equal or greater satisfaction for all five MOS-9 items. Ninety-five percent of the study patients said they would be willing to be seen by a trainee-staff team on future visits. There was no difference in patient satisfaction by trainee level. The study patients cited enhanced interaction (45%), enhanced education (34%), and improved care (26%) as benefits of trainee-involved care, and increased waiting time (18%) and worse care (5%) as drawbacks. CONCLUSION: The results of this study suggest that ambulatory teaching does not adversely affect patient satisfaction, regardless of trainee level, and that patients who have been seen by trainee-staff teams are willing to experience such encounters again.

Bedside teaching.

BACKGROUND: Clinical teachers have been exhorted to "return to the bedside" so that the three critical parties-teacher, trainee, and patient-can participate together in the educational encounter. The presence of the patient is deemed essential for the optimal demonstration and observation of physical examination, medical interviewing, and interpersonal skills, as well as role-modeling professional and humanistic behavior. METHODS: This essay reviews the challenges inherent in bedside teaching and proposes strategies to enhance both the effectiveness and efficiency of such teaching. RESULTS: Practical suggestions are provided regarding teaching issues (time constraints, group accommodation, selectivity, demonstration, observation, case presentations), learning climate for both teacher and learners, hospital and patient barriers, and selected other issues. CONCLUSIONS: Despite changes in the clinical setting and financing of medical education, patient-centered teaching will remain essential to the training of future clinicians. Techniques described in this paper can be useful in facilitating such bedside teaching.

Increasing the use of advance directives in medical outpatients.

OBJECTIVE: We studied whether a simple educational intervention would increase patient completion of advance directives and discussions on end-of-life issues. DESIGN: Randomized, controlled trial. SETTING: Outpatient clinic of a teaching hospital. SUBJECTS: One hundred eighty-seven outpatients of a primary care internal medicine clinic. INTERVENTION: Study subjects attended a 1-hour interactive seminar and received an informational pamphlet and advance directive forms. Control subjects received by mail the pamphlet and forms only. MEASUREMENTS AND MAIN RESULTS: Completion of the advance directive was the main measurement. There were no significant differences in baseline characteristics of either group. Follow-up at 1 month revealed advance directive completion in 38% of study versus 24% of control subjects (p = .04), and discussions on advance planning in 73% of study versus 57% of control subjects (p = .02). Patients most likely to complete the documents were white, married, or attendees at the educational seminar. CONCLUSIONS: Interactive group seminars for medical outpatients increased discussions and use of written advance directives.

Fatal duodenocaval fistula caused by peptic ulcer.

Gastrointestinal bleeding caused by a duodenocaval fistula is rare, diagnostically challenging, and associated with a high mortality rate. We describe the case of a patient with polymicrobial fungemia and fatal gastrointestinal bleeding related to a duodenocaval fistula caused by peptic ulcer. Polymicrobial fungemia, which has not previously been associated with this condition, raises the possibility of candidal endocarditis.

Felodipine as an alternative to more expensive calcium antagonists in mild to moderate hypertension.

We studied the therapeutic substitution of a less expensive but equally effective antihypertensive agent and assessed patient outcome. The medication of 39 patients with hypertension was changed from once-daily diltiazem hydrochloride (Cardizem CD) or nifedipine (Procardia XL) to felodipine (Plendil). Titration to a final dose was based on home and office blood pressure measurements assessed over subsequent follow-up clinic visits. Self-administered questionnaires measured different aspects of well-being and symptoms before and after the change in medication. Eighty percent of the cohort switched successfully to felodipine. Office systolic and diastolic pressures improved after the medication change (systolic: 150 mm Hg versus 144 mm Hg; diastolic: 92 mm Hg versus 87 mm Hg). No statistically significant differences were found among the 39 symptoms measured. A yearly savings potential for our institution was estimated to be $72,000.

Cost savings using a stepped-care prescribing protocol for nonsteroidal anti-inflammatory drugs.

OBJECTIVE: To lower nonsteroidal anti-inflammatory drug (NSAID) costs while maintaining quality patient care and clinician satisfaction. DESIGN: Before and after 21-month trial with one study site and two control sites and a questionnaire that was sent to 203 clinicians. SETTING AND SUBJECTS: Two military medical centers and two affiliated primary care clinics. All beneficiaries filling outpatient NSAID prescriptions. INTERVENTIONS: An NSAID prescribing protocol was implemented requiring a trial of either ibuprofen or indomethacin before new prescription of more expensive NSAIDs. One control center used an NSAID computer cost-prompt and the other had no intervention. MAIN OUTCOME MEASURES: The proportion of expensive NSAIDs prescribed at each institution and total NSAID costs adjusted for prescription volume. Clinician acceptance and patient impact were assessed by the questionnaire. RESULTS: Study site clinicians (n=158) reported very few protocol-related patient care problems. A minority (9%) of study site clinicians considered the protocol very bothersome, and only 2% felt it should be discontinued. Quarterly use of expensive NSAIDs at the study site fell from 34% to 21%, decreasing costs by 30% (P<.001). In contrast, the site with a computer cost-prompt had only a 5% decrease in NSAID costs, while costs at the site with no intervention increased 2%. CONCLUSIONS: For drugs with similar benefits and adverse effects, a "stepped formulary" approach requiring an initial trial of one of the less expensive agents can maintain physician prescribing choices and satisfaction while lowering costs.

Benign nocturnal leg cramps. Current controversies over use of quinine.

Benign nocturnal leg cramps are a relatively common and bothersome complaint, particularly among the elderly. Careful history taking and physical examination can exclude the majority of disorders in the differential diagnosis. Mechanical treatment of an acute muscle cramp involves stretching of the affected muscle. Prophylaxis includes both mechanical and pharmacologic measures. The efficacy of quinine sulfate has been supported in the majority of well-designed studies, but its use is controversial, and the FDA has banned over-the-counter quinine-based products used for leg cramps. Potentially fatal hypersensitivity reactions and thrombocytopenia can occur with use of quinine.

The effect of multiple neuroimaging studies on classification, treatment, and outcome of acute ischemic stroke.

OBJECTIVE: To examine the effect of serial neuroimaging studies on the diagnosis, therapy, and outcome of patients with acute stroke. DESIGN: Retrospective case series. SETTING: Tertiary care teaching hospital. PATIENTS: 206 adult patients (mean age +/- SD, 66.0 +/- 10.8 years) hospitalized with a diagnosis of acute stroke between 1990 and 1993. MEASUREMENTS: Strokes were retrospectively assigned to five categories (large-vessel, small-vessel, cardioembolic, other, or unknown) using standardized criteria based on the history, physical examination, ancillary test results, and first computed tomographic (CT) or magnetic resonance imaging (MRI) study of the head. Strokes were reclassified after the results of further neuroimaging studies, if any, were reviewed. The type and timing of therapy and the patient outcome at hospital discharge were documented. RESULTS: The additional studies changed stroke classification in only 20.0% of the 140 patients who had two or more neuroimaging studies. All classification changes were from the unknown cause category to a category with a specific cause. In most patients receiving treatment (93.2%), therapy began before an additional CT or MRI study was obtained. In patients who had one neuroimaging study, 70.1% went home, 24.0% went to a skilled nursing facility, and 5.9% died; the corresponding percentages in persons who had multiple studies were 73.3%, 24.4%, and 2.2% (P > 0.1). CONCLUSIONS: Serial neuroimaging studies did not alter the classification of strokes for which an initial diagnosis had already been made. However, they were useful in determining the cause of strokes initially classified as having an unknown cause. Therapy was almost always begun immediately after the first CT or MRI study was obtained. Outcome at hospital discharge was not significantly related to the number of neuroimaging studies obtained.

A controlled trial of a seminar to improve medical student attitudes toward, knowledge about, and use of the medical literature.

OBJECTIVE: To determine whether an interactive seminar could affect medical student knowledge of research design, basic critical appraisal skills, and attitudes toward and clinical use of the medical literature. DESIGN: Controlled, nonrandomized clinical trial. PARTICIPANTS: Third-year clinical clerks (n = 146) during their core medicine clerkship. INTERVENTIONS: Two 90-minute interactive seminars. MEASUREMENTS AND MAIN RESULTS: Pre- and postquestionnaires were used to assess knowledge and attitudes regarding the use of the medical literature among 65 study and 81 control students. Blinded review of write-ups assessed actual use of the medical literature. Overall, 80% of the students subscribed to one or more journals and reported reading three or more journal articles per month. After the intervention, the study students were more likely than the control students to consider: 1) study design important in article selection and 2) use of medical literature critical to patient care decisions. Knowledge scores were significantly improved in the study group (p = 0.0001). The intervention yielded no increase in the actual use of medical literature in patient write-ups over that encouraged by usual clerkship goals. 51% of the study and 48% of the control students cited literature at baseline, and 53% of all the students did so after the intervention. Of these citations, 50% were for journal articles and the remainder were for textbooks. The students infrequently mentioned the quality of the cited literature. CONCLUSIONS: An interactive seminar designed to introduce medical students to critical appraisal improved student knowledge and attitudes but did not increase the actual use of literature in patient write-ups.

Use of do-not-resuscitate orders in an intensive care setting.

STUDY OBJECTIVES: Do-not-resuscitate (DNR) orders have been espoused for the enhancement of patient autonomy, avoidance of futile medical intervention, and cost containment. Outcomes of cardiopulmonary resuscitation (CPR) in the intensive care setting have been dismal, with few patients surviving to discharge. This study compares patients who died in medical and surgical ICUs in a DNR status with those who died after attempted CPR. DESIGN: Retrospective chart review of all patients who died in the medical and surgical ICU in a 2-year period. MEASUREMENTS AND RESULTS: A total of 195 cases were reviewed during the specified time period; 108 patients had undergone attempted resuscitation, and 87 patients died in a DNR status. There were no significant differences when preadmission disability, source of admission, location (medical ICU vs surgical ICU), chronic medical conditions, acute diagnosis, sex, and weight were considered. Patients who were designated "DNR" were significantly older than patients who underwent CPR (mean age, 65.7 years vs 58.9 years; p = 0.005). The DNR-designated patients were in general more severely ill as measured with the APACHE II system (mean score, 23.5 vs 20.7; p = 0.004), which was accounted for primarily by greater alterations in level of consciousness as measured with the Glascow Coma scale (mean score, 10.0 vs 12.1; p = 0.001). CONCLUSIONS: Among patients dying in the medical and surgical ICUs in the authors' institution, only age and level of consciousness discriminated patients who died in a DNR status from those who died after attempted CPR.

Outcome of cardiopulmonary resuscitation in the intensive care setting.

BACKGROUND: Although cardiopulmonary resuscitation (CPR) has been shown to be most effective in a monitored setting, previous studies have focused primarily on patients with acute cardiac events rather than chronic progressive disease. This study examined the outcome of CPR in the medical and surgical intensive care units where patients often have acute illness superimposed on chronic underlying conditions. METHODS: We present a retrospective chart review of all patients undergoing CPR in medical and surgical intensive care units during a 2-year period. RESULTS: One hundred fourteen charts were reviewed. Patient mean age was 59 years. The primary underlying disease was malignancy in 29 (25%), vascular disease in 20 (18%), chronic liver disease in eight (7%), end-stage renal disease in six (5%), chronic obstructive pulmonary disease in five (5%), and other conditions in 46 (40%) patients. Although 50 (44%) of the patients were initially resuscitated, only six (5%) ultimately survived to hospital discharge. Only one of 29 patients with malignancy and one of 39 septic patients survived. Age, sex, and Acute Physiology and Chronic Health Evaluation II scores were similar among survivors and nonsurvivors. Furthermore, four of the six survivors died within 1 year of discharge, and the two others had severe disabilities. CONCLUSIONS: Patients with chronic medical conditions undergoing CPR even in an intensive care unit setting seldom survive to hospital discharge. Even among the few survivors, the near term prognosis is poor. Therefore, the decision to perform CPR should take into account underlying chronic medical conditions and not merely the setting of the arrest.

Advance directives: implementation into clinical practice.

Legislation recently passed by Congress will require health care organizations to maintain specific procedures regarding the right of patients to prepare advance directives. Previous studies have shown that patients may wish to discuss issues regarding future terminal care, but few patients complete living wills or durable powers of attorney. Although physicians often have positive attitudes regarding advance directives, the majority do not initiate discussions regarding these issues. The new regulations may increase the awareness of directives and increase the documentation of patients' desires into the medical record. However, the widespread acceptance of the advance directive and its impact on health care decisions remain to be seen.

Suppurative pylephlebitis.

Suppurative pylephlebitis is an unusual disease with an associated high mortality. Most cases are a complication of an intra-abdominal septic focus, but some may occur de novo. In the case we have presented, the diagnosis was made by modern imaging techniques that showed thrombus predominantly within the upper portal venous system. We hypothesize that the portal system was seeded through a gastric ulcer. The patient recovered completely with prolonged antibiotic therapy.

Purification of human basophils by negative selection.

Enriched populations of human basophils were prepared using a combination of negative selection techniques. First, a 2-step discontinuous gradient was made using 65% and 55% isotonic Percoll. Purification of plasma basophils by centrifugation through the gradient increased basophils from 0.96 +/- 0.55% to 14.6 +/- 7.9% (n = 9). In 5 other experiments a second step was added in which contaminating mononuclear cells were removed using a panning technique. In this technique, Percoll separated cells were treated with anti-T-cell antibodies. Contaminating T-cells were selectively removed by adherence to a petri dish coated with affinity purified goat anti-mouse IgG. Basophil purity was increased to 34 +/- 15% using this step. These experiments demonstrated that negative selection techniques can yield an increase in basophil purity 50-100-fold. The purified basophils contained the expected quantity of histamine (1.36-1.54 pg/basophil) and released the same amount of histamine in response response to different concentrations of goat anti-human IgE Fc as did unpurified cells.