ArticleObesity surgery2014
Impact of weight loss due to sleeve gastrectomy on shear stress of the femoral vein in morbid obesity.
Article in Obesity surgery, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 14 citations in OpenAlex.
- No More Venous Ulcers-What More Can We Do?Journal of clinical medicine · 2023Review
- Bariatric Surgery and Femoral Vein Diameter in Morbidly Obese Patients: a Cohort Study in Iran.Obesity surgery · 2023Article
- Effect of Obesity and Bariatric Surgery on Saphenous Veins.Obesity surgery · 2023Article
- Brazilian guidelines on chronic venous disease of the Brazilian Society of Angiology and Vascular Surgery.Jornal vascular brasileiro · 2023Article
- [Ulcers in obesity-associated chronic venous insufficiency].Der Hautarzt; Zeitschrift fur Dermatologie, Venerologie, und verwandte Gebiete · 2017Article
- Chronic Venous Disease of the Lower Extremities: A State-of-the Art Review.Journal of the Society for Cardiovascular Angiography & InterventionsReview
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundStudies have shown that obesity is associated with venous flow disturbances that lead to changes of the biomechanical forces on the venous wall known as shear stress. We hypothesized that weight loss due to bariatric surgery affects the venous hemodynamics and biomechanical forces on the venous wall. The aim of this study was to evaluate the effects of laparoscopic sleeve gastrectomy (LSG) on the wall shear stress (WSS) and the venous hemodynamics of the femoral vein.
methodsWe studied ten morbidly obese patients who underwent LSG. We investigated venous hemodynamics before, 6 and 12 months after LSG. The femoral vein diameter, cross-sectional area, peak (PeakV) and maximum (TAmax) velocities, WSS, and shear rate (SR) were assessed.
resultsPeakV and TAmax were significantly lower in the obese patients compared with the control group. WSS and SR were significantly lower in the obese patients compared with the control subjects. Venous hemodynamic parameters increased in the postoperative period at baseline compared with 12 months after surgery: PeakV increased from 17.53 (14.25-20.01) cm/s to 25.1 (20.9-30.1) cm/s (P = 0.04) and the TAmax from 12.97 (11.51-14.6) cm/s to 18.46 (13.24-24.13) cm/s (P = 0.057). WSS significantly increased from 0.21 (0.19-0.23) Pa at baseline to 0.31 (0.23-0.52) Pa 12 months after surgery (P = 0.031). SR also significantly increased from 47.92 (43.93-58.55) s(-1) at baseline to 76.81 (54.04-109.5) s(-1) 12 months after surgery (P = 0.02).
conclusionsThis study showed that weight loss due to LSG significantly changes the biomechanical forces on the femoral vein generated by blood flow.
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