We hypothesized that the introduction of a practice guideline for penicillin skin testing would increase the appropriateness of skin testing and reduce antibiotic costs for patients with a history of penicillin allergy who have infections caused by penicillin-susceptible pathogens. We measured the appropriateness of skin testing and daily antibiotic costs before and after the introduction of a guideline for penicillin skin testing. For patients who had negative results of skin testing and were subsequently treated with a penicillin instead of an alternative antibiotic, we calculated the difference between the actual costs and the projected costs of continuing alternative antibiotics without skin testing. After the guideline was introduced, appropriateness of skin testing increased from 17% to 64%, but daily antibiotic costs did not change. For patients who had negative results of skin testing and who were subsequently treated with a penicillin, there was no difference between actual costs and the projected costs if they had not been skin tested. We conclude that introduction of a guideline for penicillin skin testing increases the percentage of eligible patients who have a skin test, and it does so without increasing costs.
Cryptococcomas and serum antigenemia were slow to resolve. However, late onset of failed therapy or relapse was uncommon, suggesting that delayed resolution of these findings does not require prolongation of treatment beyond that recommended by guidelines.
The incidence and spectrum of primary AIDS-defining illnesses in human immunodeficiency virus-positive patients receiving antiretroviral drugs may have changed since the introduction of newer antiretroviral agents. We performed a retrospective analysis of patients enrolled in the British Columbia Drug Treatment Program who were ever prescribed antiretroviral drugs between 1 January 1994 and 31 December 1996. Rates were calculated on a 6-month basis. There were 344 AIDS cases diagnosed among 2,533 participants between 1994 and 1996. The incidence of primary AIDS diseases decreased from 1994 to 1996, with a sharp decline in 1995 and 1996. There was no statistically significant change in the incidence of primary AIDS diagnoses relative to one another, and Pneumocystis carinii pneumonia and Kaposi's sarcoma remain the most common AIDS index diagnoses. In patients receiving antiretroviral therapy in the modern era, the incidence of AIDS-defining illnesses has decreased substantially, but the spectrum of AIDS-defining illnesses remains unchanged.
Introduction of this guideline was associated with an increase in appropriateness of prophylaxis and a decrease in medication costs.
Within the UK there has been increasing interest in the development and implementation of guidelines, as the emphasis on clinical effectiveness is gathering momentum. This paper outlines some of the practical issues encountered in developing and implementing guidelines, based on experiences within Liverpool. Developing local guidelines can be a lengthy process, but that process is not a waste of time if it means there is more likely to be compliance in the end. Dissemination of guidelines alone is not enough; it needs to be combined with an appropriate implementation strategy. There is a danger of primary care being overloaded with new guidelines; there needs to be a timed strategy for their introduction. More imaginative thought needs to be put into the marketing of new ideas in order to change practice. We need to encourage the ethos amongst healthcare professionals of expecting to have to constantly update knowledge and practice.
Objectives: To determine (1) predictors of in-hospital mortality and long-term survival in patients with acute respiratory failure (ARF) caused by acquired immunodeficiency syndrome-related Pneumocystis carinii pneumonia (PCP) and (2) long-term survival for patients with ARF relative to those without ARF.Methods: A retrospective medical chart review was conducted of all cases of PCP-related ARF for which the patient was admitted to the intensive care unit of a single tertiary care institution between 1991 and 1996. Data were extracted regarding physiologic scores, relevant laboratory values, and duration of previous maximal therapy with combined anti-PCP agents and corticosteroids at entry to the intensive care unit. Duration of survival was determined by Kaplan-Meier methods from date of first hospital admission and compared for patients with and without ARF.Results: There were 41 admissions to the intensive care unit among 39 patients, with 56.4% in-hospital mortality. Higher physiologic scores (Acute Physiology and Chronic Health Evaluation II [APACHE II], Acute Lung Injury, and modified Multisystem Organ Failure scores) were predictive of in-hospital mortality. Duration of previous maximal therapy also predicted in-hospital mortality (45% for patients with Ͻ5 days of previous maximal therapy vs 88% for those with Ն5 days of previous maximal therapy; P = .03). Combining physiologic scores and duration of previous maximal therapy enhanced prediction of in-hospital mortality. There was no difference in long-term survival between patients with PCP with ARF and those without ARF (P = .80), and baseline characteristics did not predict long-term survival.Conclusions: In-hospital mortality of patients with acquired immunodeficiency syndrome-related PCP and ARF is predicted by duration of previous maximal therapy and physiologic scores, and their combination enhances predictive accuracy. Long-term survival of patients with ARF caused by PCP is comparable to that of patients with PCP who do not develop ARF, and determinants of in-hospital mortality do not predict longterm survival. Med. 1999;159:741-747 Arch Intern
P Pu ur rp po os se e: : To propose a strategy for the management of patients admitted to critical care units after resuscitation from cardiac arrest.S So ou ur rc ce e: : Prior to the conference relevant studies were identified via literature searches and brief reviews circulated on the following topics: glucose and blood pressure management; therapeutic hypothermia; prearrest outcome prediction; post-arrest outcome prediction; and management of myocardial ischemia. Two days were devoted to assessing evidence and developing a management strategy at the conference. Consensus opinion of conference participants [intensive care unit (ICU) physicians] was used when high grade evidence was unavailable. Additional literature searches and data grading were performed post-conference. P Pr ri in nc ci ip pa al l f fi in nd di in ng gs s: : High grade evidence was lacking in most areas. Specific goals of treatment were proposed for: general care; neurologic care; respiratory care; cardiac care; and gastrointestinal care. There was adequate evidence to recommend therapeutic hypothermia for comatose patients who had witnessed ventricular fibrillation or ventricular tachycardia arrests. Conference participants supported extending therapeutic hypothermia to other presenting rhythms in selected circumstances. Additional goals included mean arterial pressure 80 to 100 mmHg, glucose 5 to 8 mmol·L -1 using insulin infusions, and PaO 2 > 100 mmHg for the first 24 hr. Absent withdrawal to pain 72 hr after resuscitation should prompt consideration of palliative care. The level of evidence for other recommendations was low.C Co on nc cl lu us si io on ns s: : The proposed management strategy represents an approach to manage patients in the ICU following resuscitation from cardiac arrest. Most of the recommendations are based on low grade evidence. Additional research is needed to improve the evidence base. A standard post-arrest management strategy could help facilitate future research. Objectif : Proposer une stratégie de traitement à adopter avec les patients admis aux unités de soins intensifs (USI) après la réanimation post-arrêt cardiaque. Source : Avant la conférence, les études utiles ont été repérées dans les publications et de brèves revues ont circulé sur
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