Key result
Bariatric surgery is linked to a ~6 mmHg reduction in 24-hour SBP at 12 months.
Why the study?
Changes in 24-hour ambulatory blood pressure after bariatric and metabolic surgery in patients with morbid obesity were not well characterized, despite known hypertension improvements after surgery.
Does bariatric and metabolic surgery reduce 24-hour ambulatory blood pressure in patients with morbid obesity?
Cohort (n=25)
No
Does bariatric and metabolic surgery reduce 24-hour ambulatory blood pressure in patients with morbid obesity?
Mean Difference: -6.2
Absolute Event Rate: 126.5% vs 132.7%
p-value: p=0.030
Bariatric and metabolic surgery significantly reduces both office and 24-hour ambulatory blood pressure at 1 year in patients with morbid obesity.
May support ambulatory BP monitoring post-bariatric surgery in morbid obesity; leaves open need for RCTs on CV outcomes.
Purpose: This study aimed to evaluate changes in office and ambulatory blood pressure following bariatric and metabolic surgery in patients with morbid obesity. Materials and Methods: We retrospectively reviewed consecutive patients with morbid obesity who underwent bariatric and metabolic surgery between January 2020 and August 2023 at a single tertiary referral center. Office blood pressure and 24-hour ambulatory blood pressure monitoring were performed before surgery and repeated at 6 and 12 months postoperatively. The primary outcome was the change in mean 24-hour systolic blood pressure (SBP) and diastolic blood pressure (DBP). Results: at 12 months. Office SBP significantly decreased from 140.3±10.7 mmHg at baseline to 128.0±9.4 mmHg at 12 months (P<0.001), while office DBP decreased from 87.0±6.9 mmHg to 82.2±6.4 mmHg (P<0.001). Likewise, mean 24-hour SBP decreased from 132.7±10.7 to 126.5±8.8 mmHg at 12 months (P=0.030), and mean 24-hour DBP decreased from 85.0±6.7 to 79.5±6.5 mmHg (P=0.040). Conclusion: Bariatric and metabolic surgery was associated with significant reductions in both office and ambulatory blood pressure during the first postoperative year.
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Kim et al. (2026) conducted a cohort in Morbid obesity (n=25). Bariatric and metabolic surgery vs. Baseline was evaluated on Mean 24-hour systolic blood pressure (SBP) (MD -6.2 mmHg, p=0.030). Bariatric and metabolic surgery significantly reduced mean 24-hour systolic blood pressure by 6.2 mmHg and diastolic blood pressure by 5.5 mmHg at 12 months in patients with morbid obesity.
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