Effects of Ramadan Fasting on Blood Pressure in Hypertensive Patients: A Systematic Review

Document Type : Review Article

Authors

1 Department of Nutrition, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran

2 Department of Community Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran. 2- Patient safety research center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran

Abstract

Ramadan is a holy month for Muslims and fasting in this month is the rule for any healthy matured person. Nutritional and behavioral changes occurred during Ramadan fasting may lead to several physiological change, such as blood pressure (2). Studies evaluated the effects of Ramadan fasting on blood pressure in hypertensive patients, are scarce and reported inadequate results. In this paper a systematic review was performed to accumulate the results of published literature designed to evaluate blood pressure changes in hypertensive patients due to Ramadan fasting. All prospective, English studies which evaluated the effects of Ramadan fasting on blood pressure in hypertensive patients and measured systolic and diastolic blood pressure twice at least ( before Ramadan and during last week of Ramadan or after Ramadan fasting ) were included in systematic review. Five studies reported the effect of Ramadan fasting on blood pressure in hypertensive patients in full text. Although significant reduction in systolic blood pressure during Ramadan fasting were seen in 3 studies (3-5), other 3 studies reported no significant difference between systolic blood pressure before and after Ramadan fasting (6, 7). Among 6 studies that reviewed in this paper, 4 studies reported no significant changes in diastolic blood pressure (4, 6, 7). While 2 other studies reported significant reduction in systolic blood pressure after Ramadan fasting (3, 5). This systematic review suggested that Ramadan fasting can be safe in treated essential hypertensive patients with continuation of previous medications. Also it can improve systolic and diastolic blood pressures.

Keywords

References

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History

  • Receive Date: 16 January 2016
  • Revise Date: 09 February 2016
  • Accept Date: 19 January 2016

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