Acetazolamide is used to prevent acute mountain sickness (AMS). We assessed efficacy and harm of acetazolamide for the prevention of AMS, and tested for dose-responsiveness. We systematically searched electronic databases (until April 2011) for randomized trials comparing acetazolamide with placebo for the prevention of AMS. For each dose, risk ratios were aggregated using a Mantel-Haenszel fix...

For a systematic review of postoperative analgesic efficacy and adverse effects of single doses, injected or oral, of pethidine and ketorolac compared with placebo, we sought published randomized studies in moderate to severe postoperative pain. Information on summed pain intensity or pain relief outcomes over 4-6 h was extracted and converted to dichotomous information to produce the number of...

The analgesic effectiveness and safety of oral tramadol were compared with standard analgesics using a meta-analysis of individual patient data from randomised controlled trials in patients with moderate or severe pain after surgery or dental extraction. Calculation of %maxTOTPAR from individual patient data, and the use of > 50%maxTOTPAR defined clinically acceptable pain relief. Number-needed...

50 mg rt-PA in reducing bleeding complications. Without accurate data of the bleeding complications in PTE thrombolytic therapy in China, we are currently unable to provide AR% for the Chinese population. Inspired by Dr Pena’s calculation, we performed additional analyses of the relative risk (RR) (I 50 mg/I 100 mg, the ratio of the bleeding incidences of the 50-mg rt-PA and 100-mg rt-PA groups...

introduction:  the main purpose of emergency department (ed) management for renal colic  is prompt pain relief. the present study aimed to compare the analgesic effects of intravenus (iv) ketofol with morphine in management of ketorolac persistent renal colic. methods: this study is a single blind randomized, clinical trial, on patients who were presented to ed with renal colic, whose pain was ...

The Minimum Spanning Tree (MST) problem is one of the most important and commonly occurring primitive in the design and operation of data and communication networks. While there are distributed algorithms for the MST problem these require relatively large number of messages and time, and are fairly involved, require synchronization and a lot of book keeping; this makes these algorithms impracti...

The Minimum Spanning Tree (MST) problem is one of the most important and commonly occurring primitive in the design and operation of data and communication networks. While there are distributed algorithms for the MST problem these require relatively large number of messages and time, and are fairly involved, require synchronization and a lot of book keeping; this makes these algorithms impracti...

BACKGROUND Atherosclerosis of the coronary arteries is the most common cause of death in the United States for persons over the age of 45. Dyslipidemia is one of the risk factors for the development of coronary atherosclerosis. Recent studies suggest that treating dyslipidemia in persons with coronary atherosclerosis may decrease morbidity and mortality. METHODS A meta-analysis of 33 studies ...