Obesity Surgery

, 18:1083

Laparoscopic Sleeve Gastrectomy—Volume and Pressure Assessment

  • Ronit T. Yehoshua
  • Leonid A. Eidelman
  • Michael Stein
  • Suzana Fichman
  • Amir Mazor
  • Jacopo Chen
  • Hanna Bernstine
  • Pierre Singer
  • Ram Dickman
  • Scott A. Shikora
  • Raul J. Rosenthal
  • Moshe Rubin
Research Article

Abstract

Background

Aiming to clarify the mechanism of weight loss after the restrictive bariatric procedure of sleeve gastrectomy (LSG), the volumes and pressures of the stomach, of the removed part, and of the remaining sleeve were measured in 20 morbidly obese patients.

Methods

The technique used consisted of occlusion of the pylorus with a laparoscopic clamp and of the gastroesophageal junction with a special orogastric tube connected to a manometer. Instillation of methylene-blue-colored saline via the tube was continued until the intraluminal pressure increased sharply, or the inflated stomach reached 2,000 cc. After recording of measurements, LSG was performed.

Results

Mean volume of the entire stomach was 1,553 cc (600–2,000 cc) and that of the sleeve 129 cc (90–220 cc), i.e., 10% (4–17%) and that of the removed stomach was 795 cc (400–1,500 cc). The mean basal intragastric pressure of the whole stomach after insufflations of the abdominal cavity with CO2 to 15 mmHg was 19 mmHg (11–26 mmHg); after occlusion and filling with saline it was 34 mmHg (21–45 mmHg). In the sleeved stomach, mean basal pressure was similar 18 mmHg (6–28 mmHg); when filled with saline, pressure rose to 43 mmHg (32–58 mmHg). The removed stomach had a mean pressure of 26 mmHg (12–47 mmHg). There were no postoperative complications and no mortality.

Conclusions

The notably higher pressure in the sleeve, reflecting its markedly lesser distensibility compared to that of the whole stomach and of the removed fundus, indicates that this may be an important element in the mechanism of weight loss.

Keywords

Bariatric surgery Sleeve gastrectomy Distensibility Volume Pressure 

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Copyright information

© Springer Science + Business Media, LLC 2008

Authors and Affiliations

  • Ronit T. Yehoshua
    • 1
  • Leonid A. Eidelman
    • 2
  • Michael Stein
    • 3
  • Suzana Fichman
    • 4
  • Amir Mazor
    • 3
  • Jacopo Chen
    • 3
  • Hanna Bernstine
    • 5
  • Pierre Singer
    • 6
  • Ram Dickman
    • 7
  • Scott A. Shikora
    • 8
  • Raul J. Rosenthal
    • 9
  • Moshe Rubin
    • 1
    • 3
  1. 1.Felsenstein Medical Research Center, Beilinson Campus, Petach-Tikva, Sackler School of MedicineTel Aviv UniversityTel AvivIsrael
  2. 2.Department of Anesthesiology, Beilinson Campus, Petach-Tikva, Sackler School of MedicineTel Aviv UniversityTel AvivIsrael
  3. 3.Department of Surgery, Beilinson Campus, Petach-Tikva, Sackler School of MedicineTel Aviv UniversityTel AvivIsrael
  4. 4.Department of Pathology, Beilinson Campus, Petach-Tikva, Sackler School of MedicineTel Aviv UniversityTel AvivIsrael
  5. 5.Department of Nuclear Medicine, Beilinson Campus, Petach-Tikva, Sackler School of MedicineTel Aviv UniversityTel AvivIsrael
  6. 6.Intensive care unit, Beilinson Campus, Petach-Tikva, Sackler School of MedicineTel Aviv UniversityTel AvivIsrael
  7. 7.Gastroenterology unit, Beilinson Campus, Petach-Tikva, Sackler School of MedicineTel Aviv UniversityTel AvivIsrael
  8. 8.Tufts–New England Medical CenterBostonUSA
  9. 9.Cleveland Clinic FloridaWestonUSA

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