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Laparoscopic Roux-en-Y Gastric Bypass and Its Early Effect on Blood Pressure

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Abstract

Background

Laparoscopic Roux-en-Y gastric bypass (LRYGB) surgery is known to have a significant effect on obesity-related comorbidities such as hypertension curing it in some (50–70%) while improving control in others. Our aim was to observe the changes in blood pressure (BP) in a cohort of 100 patients followed prospectively for 1 year after LRYGB.

Methods

BP measurements were recorded prospectively in 100 consecutive patients preoperatively and then postoperatively at weeks 1, 5, 9, and months 6 and 12. In order to reduce bias, three BP measurements were made by the same nurse at each office visit and the mean recorded. Pre- and postoperative usage of antihypertensive medication was also noted.

Results

Eighty-nine women and 11 men underwent LRYGB and their BP monitored for 1 year. There was an 85% follow-up rate with mean % excess body weight loss of 60. Reductions in systolic (9 mmHg) and diastolic (7 mmHg) BP measurements were seen as early as week 1 postoperatively and maintained for the duration of the observation period (P < 0.05). Furthermore, postoperative usage of antihypertensive medication is reduced to a third of preoperative use.

Conclusion

LRYGB is associated with an early reduction in BP and antihypertensive medication usage which is maintained at 1 year after surgery. This early impact on blood pressure occurs before any significant weight loss is achieved thereby suggesting a hormonal mechanism that may be involved for the changes observed.

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Acknowledgement

This publication was made possible by Grant Number 1 UL1 RR024160-01 from the National Center for Research Resources (NCRR), a component of the National Institutes of Health (NIH), and the NIH Roadmap for Medical Research. Its contents are solely the responsibility of the authors and do not necessarily represent the official view of NCRR or NIH. Information on NCRR is available at http://www.ncrr.nih.gov/. Information on Re-engineering the Clinical Research Enterprise can be obtained from http://nihroadmap.nih.gov/clinicalresearch/overview-translational.asp.

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Authors and Affiliations

  1. Division of Bariatric and Gastrointestinal Surgery, University of Rochester Medical Center, Rochester, NY, USA

    Ahmed R. Ahmed, Gretchen Rickards, Deb Coniglio, Joseph Johnson, Thad Boss & William O’Malley

  2. Departmentof Biostatistics and Computational Biology, University of Rochester Medical Center, Rochester, NY, USA

    Yinglin Xia

  3. Division of Bariatric and Gastrointestinal Surgery, Highland Hospital, 1000 South Avenue, Rochester, NY, 14620, USA

    Ahmed R. Ahmed

Authors
  1. Ahmed R. Ahmed
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  2. Gretchen Rickards
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  3. Deb Coniglio
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  4. Yinglin Xia
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  5. Joseph Johnson
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  6. Thad Boss
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  7. William O’Malley
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Correspondence to Ahmed R. Ahmed.

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Ahmed, A.R., Rickards, G., Coniglio, D. et al. Laparoscopic Roux-en-Y Gastric Bypass and Its Early Effect on Blood Pressure. OBES SURG 19, 845–849 (2009). https://doi.org/10.1007/s11695-008-9671-z

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  • DOI: https://doi.org/10.1007/s11695-008-9671-z

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