Adherence to treatment guidelines in two primary care populations with gout.

Published guidelines for the treatment of gout aim to improve the evidenced-based management of this disorder. Unfortunately, several studies suggest that these guidelines are not routinely followed in clinical practice. Limited data exist comparing different groups of primary care providers regarding compliance with published gout guidelines. We conducted a retrospective study comparing two different general internal medicine (IM) practices and evaluated compliance with these guidelines. All patients with a billing code for gout seen in two large IM clinics (Clinic A, an inner-city urban clinic, and Clinic B, a suburban clinic) between January 2004 and December 2007 were selected for chart review. Patients referred to a rheumatologist for management of gout were excluded. The care received by these patients for gout was compared to recommendations from published guidelines, with the primary outcome assessing the percentage of patients who received at least yearly monitoring of serum uric acid (SUA) levels. In both clinics, yearly monitoring of SUA levels occurred in approximately one quarter of the patients with gout (Clinic A 27.5% vs. Clinic B 28.9%, P = 0.87). Compared to SUA, renal function was monitored more frequently in each of the groups. Listed indications for antihyperuricemic therapy were similar between groups, although gouty flares were reported more frequently in clinic B (P = 0.005). In this retrospective review of gout management in two IM clinics, general care for patients with this condition did not differ significantly. However, overall compliance with recommendations from published guidelines was low.

Sapropterin: a new therapeutic agent for phenylketonuria.

OBJECTIVE: To summarize the role of pharmacotherapy in the management of phenylketonuria (PKU) and to review the pharmacology, pharmacokinetics, pharmacodynamics, efficacy data, and safety profile of sapropterin for this indication. DATA SOURCES: A literature search was conducted using MEDLINE (1966-May 2009), International Pharmaceutical Abstracts (1970-May 2009), and Cochrane database (2008) for the following key words: sapropterin, tetrahydrobiopterin, phenylketonurias, and phenylalanine. STUDY SELECTION AND DATA EXTRACTION: English-language studies involving humans examining the role of tetrahydrobiopterin (BH4) in the management of PKU were reviewed to evaluate the pharmacology, pharmacokinetics, pharmacodynamics, efficacy data, and safety profile for sapropterin. All Phase 2 and 3 randomized controlled trials assessing the safety and efficacy of sapropterin were included in this literature evaluation. DATA SYNTHESIS: Sapropterin represents the only Food and Drug Administration-approved medication for BH4-responsive PKU, marking an important advance in the treatment of this condition. Among individuals with hyperphenylalaninemia and some residual phenylalanine hydroxylase function, sapropterin can enhance activity of this enzyme to decrease serum phenylalanine concentrations. Sapropterin has been compared with placebo in one Phase 2 and one Phase 3 clinical trial, demonstrating significantly better response rates. Based on available studies, this agent appears to be safe and well tolerated, with adverse event rates similar to those of placebo. However, additional studies are warranted to assess the long-term safety and efficacy of sapropterin therapy. CONCLUSIONS: Sapropterin offers a promising therapeutic option for select individuals with BH4-responsive PKU, although long-term data are limited evaluating its safety and efficacy in traditional clinical practice settings. When considering sapropterin therapy, clinicians must consider factors such as cost and patient adherence to drug therapy and/or diet.

Antiplatelet agents for prevention of recurrent ischemic stroke.

Prevention of secondary stroke is an important objective in the management of patients with ischemic stroke or TIA. Commonly used antiplatelet regimens for this indication include aspirin, clopidogrel and ASA-ERDP. Based on current evidence, ASA-ERDP appears to be more effective than aspirin monotherapy, and one study has shown that clopidogrel may be more effective than aspirin. Furthermore, results from the recent PROFESS trial suggest that ASA-ERDP and clopidogrel are equally effective in reducing the risk of recurrent stroke, though further studies are needed to compare the efficacy and safety of these two agents. Recently updated guidelines have attempted to define the appropriate use of antiplatelet therapy for the prevention of recurrent stroke. However, individual patient characteristics need to be considered when selecting therapy. Specifically, factors such as cost, tolerability, adherence and other comorbidities may guide treatment choices.

Intensive insulin therapy in critical care settings.

Hyperglycemia in hospitalized patients has been shown to increase both morbidity and mortality, regardless of the presence of preexisting diabetes. In order to achieve recommended glycemic goals, many patients require the use of intravenous insulin therapy in the critical care setting. Following the publication of a landmark trial evaluating the benefits of intensive insulin therapy in critically ill patients, a worldwide increased effort to achieve strict glycemic control has ensued. Maintaining blood glucose levels between 80 and 110 mg/dL has been shown to improve outcomes such as mortality and infectious complications in critically ill patients, while also decreasing length of hospital stay and healthcare expenditures. However, achieving strict glycemic control has proven to be a challenge for many institutions, partly due to the prevalence of hypoglycemia. As demonstrated by studies which have been terminated prematurely due to increased risk for hypoglycemic episodes, the benefits versus risks of intensive insulin therapy must be weighed carefully. Patients receiving continuous infusions of insulin require close monitoring, which may increase workload for intensive care unit staff. In an effort to balance the risks and benefits of intensive insulin therapy, many hospitals are incorporating standardized protocols and using an interdisciplinary approach toward patient care.