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Severe orthostatic hypotension following weight reduction surgery
R Rubinshtein1, M Ciubotaru, H Elad
1Department of Internal Medicine A, Carmel Medical Center, 7 Michal St, Haifa 34362, Israel.
Archives of Internal Medicine
|September 26, 2001
Summary
Rapid weight loss after bariatric surgery can cause severe orthostatic hypotension due to impaired sympathetic function. Reversing the surgery and regaining weight resolved these symptoms, highlighting a potential risk of exaggerated hypertension treatment.
Area of Science:
- Cardiology
- Endocrinology
- Nephrology
Background:
- Surgical interventions for morbid obesity are common, often aiming for rapid weight loss.
- Obesity is strongly linked to hypertension, and weight loss is a recognized treatment.
- The autonomic nervous system's role in blood pressure regulation is complex and can be affected by weight changes.
Observation:
- A 45-year-old obese woman with hypertension and type 2 diabetes underwent weight reduction surgery.
- She experienced significant weight loss (57 kg) but developed severe orthostatic hypotension.
- Symptoms resolved upon reversal of the gastric partitioning surgery and subsequent weight regain.
Findings:
- Rapid weight loss following bariatric surgery may lead to sympathetic nervous system dysfunction.
- This dysfunction can manifest as severe orthostatic hypotension, even in patients with a history of hypertension.
- The findings suggest that while weight loss treats obesity-related hypertension, excessive or rapid loss can paradoxically impair blood pressure control.
Implications:
- Clinicians should be aware of the potential for autonomic dysfunction after rapid weight loss surgery.
- Monitoring for orthostatic hypotension is crucial in patients undergoing bariatric procedures.
- The study underscores the delicate balance of autonomic nervous system function and its relationship with body weight and blood pressure regulation.