Evaluation of body composition changes after bariatric surgery according to gender and anatomical region

Abstract

Purpose: Bariatric surgery induces acute weight loss, but there is insufficient information about its effect on postoperative early changes in body composition (BC). In this study, BC changes in the first month after Mini gastric bypass (MGB) and Sleeve gastrectomy (SG) were examined according to gender and anatomical region.

Materials and methods: Body composition changes in 100 morbidly obese patients (70 women, 30 men) after MGB and SG were measured using Bioelectrical Impedance Analysis (BIA) technology.

Results: After MGB, both men and women had a reduction in both their body fat (p=0.071) and lean tissue mass (p=0.781). In addition, muscle mass loss was not statistically significant in all groups after MGB. However, after SG, significant fat tissue loss occurred in women (p=0.014), whereas in men, there was a significant decrease in lean tissue mass (p=0.029) and upper limb muscle mass (p=0.001).

Conclusion: Our study clearly shows that bariatric surgery induces acute weight loss and that both whole-body fat and lean tissue mass are affected, and muscle loss in some anatomical regions is higher than fat loss. It has been found that changes in body composition in the early period after bariatric surgery may include differences according to gender and surgical procedure. Since muscle mass loss can have harmful consequences in the long term, nutritional strategies should be determined as soon as possible after bariatric surgery.

Keywords

• mini gastric bypass
• sleeve gastrectomy
• body composition
• fat mass
• lean tissue mass

Bariatrik cerrahi sonrası akut dönem vücut kompozisyon değişimlerinin cinsiyet ve anatomik bölgeye göre değerlendirilmesi

Abstract

Amaç: Bariatrik cerrahi (BC) akut kilo kaybına neden olur, ancak vücut kompozisyonundaki postoperatif erken dönem değişiklikler üzerindeki etkisi hakkında yeterli bilgi yoktur. Bu çalışmada, Mini gastrik bypas (MGB) ve Sleeve gastrektomi (SG) sonrası ilk aydaki vücut kompozisyon değişiklikleri cinsiyet ve anatomik bölgeye göre incelenmiştir.

Gereç ve yöntem: MGB ve SG öncesi ve postoperatif 1 ay sonra 100 morbid obez hastada (70 kadın, 30 erkek) vücut kompozisyonu (üst ekstremite, alt ekstremite, gövde kas ve yağ oranları) ayrıca tüm vücut yağ doku ve yağsız doku kütlesi Biyoelektrik Empedans Analizi (BIA) teknolojisi kullanılarak ölçüldü.

Bulgular: MGB sonrası kadın ve erkeklerde hem tüm vücut yağ kütlesinde (p=0,071) hem de yağsız doku kütlesinde (p=0,781) azalma gerçekleşmiştir. Ayrıca MGB sonrası tüm gruplarda kas kütle kaybı istatistiksel olarak anlamlı değildir. Ancak SG sonrası kadınlarda anlamlı yağ doku kaybı oluşurken (p=0,014) erkeklerde yağsız doku kütlesinde (p=0,029) ve üst ekstremite kas kütlesinde (p=0,001) anlamlı azalma tespit edilmiştir.

Sonuç: Çalışmamız bariatrik cerrahinin akut kilo kaybına neden olduğunu ve hem tüm vücut yağ kütlesi hem de yağsız doku kütlesinin etkilendiğini ve bazı anatomik bölgelerde kas kaybının yağ kaybından daha yüksek olduğunu açıkça göstermektedir. Bariatrik cerrahi sonrası akut dönemde vücut kompozisyonundaki değişimlerin cinsiyet ve yapılan cerrahi prosedüre göre farklılıklar içerebileceği bulunmuştur. Kas kütle kaybının uzun vadede zararlı sonuçları olabileceğinden, bariatrik cerrahi sonrası beslenme stratejilerinin mümkün olan en kısa sürede belirlenmesi gerekmektedir. 

Keywords

• Mini Gastrik Bypas
• sleeve gastrektomi
• vücut kompozisyonu
• yağ doku kütlesi
• yağsız doku kütlesi

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