To systematically review the literature evaluating efficacy and adverse events of propranolol treatment for infantile hemangiomas, we searched the MEDLINE and Cochrane databases for all studies examining the response of infantile hemangiomas (IHs) to propranolol published between June 12, 2008, and June 15, 2012. Forty-one studies with 1,264 patients were included; 74% of patients were female and approximately 30% had received other treatments before propranolol. Propranolol was initiated at a mean age of 6.6 months at a mean dose of 2.1 mg/kg/day and for a mean treatment duration of 6.4 months. The response rate for patients with IHs treated with propranolol was 98% (range 82%-100%), with response rate defined as any improvement with propranolol. Treatment response rates were comparable for studies evaluating IHs at specific sites, such as periorbital IHs. Studies that followed patients after treatment completion reported IH rebound growth in 17% of patients. There were 371 adverse events reported in 1,189 patients. The most common adverse events were changes in sleep (n = 136) and acrocyanosis (n = 61). Serious adverse events were rare, with reports of symptomatic hypotension in five patients, hypoglycemia in four, and symptomatic bradycardia in one. This systematic review of 1,264 patients treated with propranolol for IHs showed a high rate of efficacy and a low rate of serious adverse events.
To determine the incidence of abnormal laboratory test results among isotretinoin users.Design: Retrospective cohort.Setting: Comprehensive managed care health plan in Northern California. Participants:The study population comprised 13 772 patients aged 13 to 50 years with acne, undergoing oral isotretinoin therapy between March 1995 and September 2002.Main Outcome Measures: Laboratory values for serum triglyceride, total cholesterol, and liver transaminase levels; white blood cell count, hemoglobin level, and platelet count; and frequency of abnormal laboratory results by severity grade as defined by the National Cancer Institute Common Terminology Criteria for Adverse Events v3.0.Results: Substantial increases in the cumulative incidence of abnormalities were seen in serum lipid and transaminase levels, but not in hematologic parameters, dur-ing isotretinoin treatment compared with the baseline period. The cumulative incidence of new abnormalities in patients with normal values at baseline was 44% for triglyceride level, 31% for total cholesterol level, and 11% for transaminase level. Moderate to severe abnormalities in lipid and transaminase levels were generally transient and reversible. New abnormalities in hematological test results were uncommon. Conclusions:The incidence of abnormally high serum lipid levels during isotretinoin treatment may be greater than previously estimated. Elevations in transaminase level are generally mild. Normal baseline values of serum lipid and transaminase levels do not preclude the development of new abnormalities during isotretinoin treatment. Routine monitoring of white blood cell count, hemoglobin level, and platelet count during isotretinoin therapy may be of little utility without clinical suspicion of an abnormality. The clinical significance of laboratory abnormalities during isotretinoin therapy remains to be determined.
Isotretinoin (13-cis retinoic acid) is an effective treatment for severe cystic or recalcitrant acne vulgaris; however, concerns have been raised regarding its potential association with depression and suicidal behavior. We sought to explore the proposed relationship between isotretinoin use and the risk of depression and attempted and completed suicide in patients with acne vulgaris by performing a systematic literature search for studies reporting primary data on depression and suicidal behavior in patients treated with isotretinoin for acne vulgaris. Nine studies met the qualifying criteria for our analysis. Rates of depression among isotretinoin users ranged from 1% to 11% across studies, with similar rates in oral antibiotic control groups. Overall, studies comparing depression before and after treatment did not show a statistically significant increase in depression diagnoses or depressive symptoms. Some, in fact, demonstrated a trend toward fewer or less severe depressive symptoms after isotretinoin therapy. This decrease was particularly evident in patients with pretreatment scores in the moderate or clinical depression range. No correlation between isotretinoin use and suicidal behavior was reported, although only one retrospective study presented data on this topic. Although the current literature does not support a causative association between isotretinoin use and depression, there are important limitations to many of the studies. The available data on suicidal behavior during isotretinoin treatment are insufficient to establish a meaningful causative association.
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