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Trial Assessing the Effect of Preoperative Furosemide on Intraoperative Blood Pressure

Hypertension Clinical Trial

Official title:
Randomized Controlled Trial Assessing the Effect of Preoperative Furosemide on Intraoperative Blood Pressure

Clinical Trial Summary

The purpose of this study is to determine whether continuing or discontinuing furosemide (a diuretic) on the day of elective noncardiac surgery for those who take furosemide on a chronic basis, causes more intraoperative hypotension (low blood pressure) during surgery. Our hypothesis is that the usual practice of continuing furosemide on the day of surgery would contribute to more hypotension during surgery than discontinuing furosemide.

Clinical Trial Description

A significant proportion of patients who undergo surgery take medications on a chronic basis. Little is known about the effects of these medications on the successful conduct of anesthesia and surgery. Diuretics like furosemide may contribute to low blood pressure during surgery, an outcome associated with cardiovascular complications. However, many patients are recommended to take their diuretics on the day of surgery. We wished to determine if preoperative administration of furosemide contributes to intraoperative hypotension compared to placebo.

Comparison: We conducted a randomized, double blind placebo controlled trial to compare the effect of furosemide with that of placebo on intraoperative hypotension using intraoperative blood pressure recordings in patients who take furosemide chronically and were undergoing noncardiac surgery. ;

Study Design

Allocation: Randomized, Endpoint Classification: Safety Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Prevention

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT00115726
Study type Interventional
Source University of Calgary
Contact
Status Completed
Phase Phase 4
Start date September 2000
Completion date April 2007
View Details
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