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Saudi Journal of Kidney Diseases and Transplantation
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ORIGINAL ARTICLE Table of Contents   
Year : 2020  |  Volume : 31  |  Issue : 3  |  Page : 582-588
Effect of Ramadan fasting on arterial stiffness parameters among Egyptian hypertensive patients with and without chronic kidney disease


Department of Internal Medicine, Nephrology and Dialysis Unit, Mansoura University Hospital, Mansoura University, Mansoura, Egypt

Correspondence Address:
Ahmed A Eldeeb
Department of Internal Medicine, Nephrology and Dialysis Unit, Mansoura University Hospital, Mansoura University, Mansoura
Egypt
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DOI: 10.4103/1319-2442.289444

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Arterial stiffness (AS) increases progressively in patients with chronic kidney disease (CKD). It is a strong predictor of cardiovascular and all-cause mortality. This study aims at evaluate of the effect of Ramadan fasting on AS parameters, augmentation index (AIx), and pulse wave velocity (PWV) in hypertensive patients with and without CKD. A cohort of 71 patients (mean age = 57.14 ± 14.5 years, 42 females and 29 males) were enrolled in this study; 34 with CKD and 37 without CKD. All patients had hypertension, while 25 patients also had diabetes mellitus. Serum creatinine (Cr), serum urea, estimated glomerular filtration rate (eGFR) by CKD-EPI formula, brachial and central systolic blood pressure (BSP and CSP respectively), brachial and central diastolic blood pressure (BDP, CDP, respectively), AIx and PWV (measured by cuff based oscillometric method) were assessed before and after Ramadan fasting. In patients without CKD BSP, BDP, CSP, and CDP significantly decreased (P = 0.0001, 0.0001, 0.0001, and 0.0001, respectively). In patients with CKD BSP and CSP significantly decreased (P = 0.005 and 0.005), while BDP and CDP decreased, but the change was not statistically significant. AIx significantly decreased in patients without CKD (P = 0.0001, mean 36.24 before and 26.22 after Ramadan fasting), but did not significantly change in patients with CKD (P 0.381 mean 25.94 before and 25 after Ramadan fasting). PWV decreased in both groups, but the change was not significant. Serum Cr significantly increased (P = 0.03 mean 1.06 mg/dL before and 1.11 mg/dL after Ramadan fasting), while eGFR did not significantly decrease (P = 0.072, mean 69.73 mL/ min/1.73 m2 before and 67.3 mL/min/1.73 m2 after Ramadan fasting) in patients without CKD. Serum Cr significantly decreased (P 0.028 mean 1.93 mg/dL before and 1.87 mg/dL after Ramadan fasting) and eGFR significantly increased (P 0.006 mean 32.65 mL/min/1.73 m2 before and 34.68 mL/min/1.73 m2 after RF) in patients with CKD. Ramadan fasting is associated with improved peripheral and central blood pressure control in hypertensive patients with and without CKD. It is also associated with improved arterial compliance (decreased AIx) in hypertensive patients without CKD.


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