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Resolution of systemic hypertension after laparoscopic gastric bypass
Marcelo W Hinojosa1, J Esteban Varela, Brian R Smith
1Department of Surgery, University of California, Irvine Medical Center, Orange, CA 92868, USA.
Insights
Laparoscopic gastric bypass significantly reduces blood pressure and resolves hypertension in most obese patients. Early improvement is noted, especially in those with shorter hypertension duration.
Area of Science:
- Bariatric Surgery
- Cardiovascular Health
- Obesity Medicine
Background:
- Hypertension is a common comorbidity in obesity and a risk factor for coronary heart disease.
- Obesity significantly increases the risk of developing hypertension.
- Laparoscopic gastric bypass is a bariatric surgical procedure for severe obesity.
Purpose of the Study:
- To evaluate the clinical outcomes of laparoscopic gastric bypass in obese patients with hypertension.
- To assess the impact of weight loss on blood pressure and antihypertensive medication needs.
- To identify factors influencing hypertension resolution post-surgery.
Main Methods:
- A cohort of 95 obese patients with hypertension undergoing laparoscopic gastric bypass was studied.
- Key outcome measures included blood pressure changes, duration of hypertension, and medication adjustments.
- Data were collected preoperatively and at 12-month follow-up.
Main Results:
- Mean systolic blood pressure decreased from 140 to 120 mmHg; diastolic decreased from 80 to 71 mmHg (p < 0.01).
- 46% of patients achieved complete hypertension resolution, and 19% showed improvement at 12 months.
- Shorter duration of hypertension correlated with complete resolution (53 vs. 95 months, p = 0.01).
Conclusions:
- Laparoscopic gastric bypass leads to substantial improvement or resolution of hypertension in the majority of obese patients.
- Hypertension improvement can occur as early as 1 month post-surgery.
- Shorter preoperative hypertension duration is associated with a higher likelihood of resolution.
Background:
Hypertension is a well-recognized and treatable risk factor for coronary heart disease and is one of the most common comorbidities associated with obesity. The aim of this study was to characterize the clinical outcome of a cohort of patients with documented hypertension who underwent laparoscopic gastric bypass.
Methods:
Ninety-five obese patients with documented hypertension and being treated with antihypertensive medication(s) underwent laparoscopic gastric bypass. Main outcome measures included length of hypertensive condition, changes in systolic and diastolic blood pressures, and changes in antihypertensive medication(s) at follow-up.
Results:
There were 69 (72%) females with a mean preoperative body mass index of 47 kg/m(2). The mean duration of hypertension was 73 +/- 70 months. The mean excess body weight loss at 12 months was 66%. The mean systolic blood pressure significantly decreased from 140 +/- 17 mmHg preoperatively to 120 +/- 18 mmHg at 12 months (p < 0.01). The mean diastolic blood pressure also significantly decreased from 80 +/- 11 mmHg preoperatively to 71 +/- 8 mmHg at 12 months (p < 0.01). At 12 months follow-up, 44 (46%) patients had complete resolution of hypertension while 18 (19%) patients had improvement. Patients with complete resolution had a shorter duration of disease as compared to patients without resolution (53 vs. 95 months, respectively, p = 0.01).
Conclusion:
Weight loss associated with laparoscopic gastric bypass substantially improves and/or resolves hypertension in the majority of patients. Improvement of hypertension occurs as early as 1 month postoperatively and is more frequently in patients with a shorter preoperative duration of disease.
