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Dieting And Medication May Reduce Blood Pressure In Patients With Hypertension

Date:
March 25, 2008
Source:
JAMA and Archives Journals
Summary:
Adults with hypertension may be able to lower their weight and their blood pressure by following a weight-loss diet or using the medication orlistat, according to a meta-analysis of previously published studies.

Adults with hypertension may be able to lower their weight and their blood pressure by following a weight-loss diet or using the medication orlistat, according to a meta-analysis of previously published studies.

High blood pressure (hypertension) is a major risk factor for cardiovascular disease and is responsible for approximately 7 million deaths worldwide each year, according to background information in the article. Lowering blood pressure levels in those with hypertension has been shown to reduce cardiovascular risk, with corresponding decreases in illness and death. "Weight reduction is recommended in major guidelines as an initial intervention in the treatment of hypertensive patients," the authors write. "Among the possible means of reducing body weight are lifestyle modifications and pharmacologic and invasive interventions."

Karl Horvath, M.D., of the Medical University of Graz, Austria, and colleagues performed a meta-analysis of 48 articles that were published before March 2007 and analyzed weight-loss interventions for patients with hypertension. Of those studies, 38 assessed diet and 10 focused on medications for weight loss, including five evaluating orlistat and five assessing sibutramine. No relevant articles were located regarding the weight loss drug rimonabant or evaluating surgical weight reduction.

"Patients assigned to weight loss diets, orlistat or sibutramine reduced their body weight more effectively than did patients in the usual care/placebo groups," the authors write. "Reduction of blood pressure was higher in patients treated with weight loss diets or orlistat." Sibutramine treatment, however, did not lower overall blood pressure and appeared to increase systolic (top number) blood pressure.

"A reduction in body weight of approximately 4 kilograms [8.8 pounds] was necessary to achieve a reduction of approximately 6 milligrams of mercury in systolic blood pressure with dietary treatment and of approximately 2.5 milligrams of mercury with orlistat," the authors write. "None of the studies provided data to answer the question whether risk of mortality [death] or other patient-relevant end points can be lowered by weight reduction."

Journal reference: Arch Intern Med. 2008;168[6]:571-580.


Story Source:

The above story is based on materials provided by JAMA and Archives Journals. Note: Materials may be edited for content and length.


Cite This Page:

JAMA and Archives Journals. "Dieting And Medication May Reduce Blood Pressure In Patients With Hypertension." ScienceDaily. ScienceDaily, 25 March 2008. <www.sciencedaily.com/releases/2008/03/080324173548.htm>.
JAMA and Archives Journals. (2008, March 25). Dieting And Medication May Reduce Blood Pressure In Patients With Hypertension. ScienceDaily. Retrieved August 27, 2014 from www.sciencedaily.com/releases/2008/03/080324173548.htm
JAMA and Archives Journals. "Dieting And Medication May Reduce Blood Pressure In Patients With Hypertension." ScienceDaily. www.sciencedaily.com/releases/2008/03/080324173548.htm (accessed August 27, 2014).

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