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10.01.2018 | Original Contributions | Ausgabe 7/2018

Obesity Surgery 7/2018

Time Course of Blood Pressure Decrease After Bariatric Surgery in Normotensive and Hypertensive Patients

Zeitschrift:
Obesity Surgery > Ausgabe 7/2018
Autoren:
Devon N. Hawkins, Byron J. Faler, Yong U. Choi, Balakrishna M. Prasad
Wichtige Hinweise

Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1007/​s11695-017-3091-x) contains supplementary material, which is available to authorized users.

Abstract

Background

Bariatric surgery leads to remission of several obesity-related comorbidities, including hypertension. Although antihypertensive medication use is decreased after bariatric surgery, the exact time course of decrease in blood pressure after surgery is not known.

Methods

A database of patients undergoing bariatric surgery at our institute was used to study the effect of surgery on time course of blood pressure changes. Data from surgeries performed between January 2010 and December 2012 were used.

Results

Maximum blood pressure and body weight decreases were observed at 2 weeks and 1 year after surgery, respectively. Average decrease in the mean arterial pressure (MAP) was 4.46 mmHg (61.5 ± 17.1% of maximal decrease) and 7.17 mmHg (maximum decrease) at 1 and 2 weeks after surgery, when the decrease in body weight is 22.8 ± 1.6 and 28 ± 1.4% of maximal weight loss, respectively. In hypertensive patients, MAP decreased from 98.5 ± 0.78 to 92.3 ± 1.76 and 93.1 ± 0.92 mmHg at 1 and 2 weeks post-surgery, respectively. In normotensive patients, the MAP decreased from 96.2 ± 0.79 to 88.7 ± 1.25, 90.0 ± 0.94, 86.5 ± 1.35, 88.0 ± 1.13, and 86.4 ± 2.13 mmHg at 2 weeks, 3 and 6 months, and 1 and 3 years after surgery, respectively.

Conclusions

These data demonstrate that significant decrease in MAP occurs within 2 weeks after bariatric surgery in hypertensive as well as normotensive patients. Future studies are required to investigate the weight-independent mechanisms of blood pressure decreases after bariatric surgery.

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