Gastric Sleeve

Sleeve Gastrectomy (SG) or Vertical Gastrectomy is purely restrictive and is recognized by the American Society for Metabolic and Bariatric Surgery (ASMBS) as an approved procedure for weight loss.

In some cases, the SG is used as a “first-stage” procedure, followed by a second procedure which would complete the gastric bypass.

The procedure involves removing a large portion of the lower stomach and creating a long, tubular structure, which will limit food intake.

The mechanisms of weight loss and improvement in co-morbidities seen after SG might be related to gastric restriction, hormonal changes related to gastric resection or gastric emptying, or some other unidentified factor or factors.

In comparison to gastric bypass, the sleeve gastrectomy does not predispose individuals to marginal ulcers, vitamin deficiencies, dumping syndrome, or malabsorption. Endoscopy can still be used as a diagnostic technique, as the remaining stomach and first portion of the intestine are still accessible.

Carondelet St. Mary’s Hospital
2022 Bariatric Surgical Outcomes

Laparoscopic Sleeve Gastrectomy
Related Re-operation1.61% (1 in 62)
Related Re-admission3.23% (2 in 62)
Surgical Site Infection1.61% (1 in 62)
Leak1.61% (1 in 62)


Carondelet St. Mary’s Hospital
2022 Bariatric Surgical Outcomes

Laparoscopic Roux-en-Y Gastric Bypass
Volume 71
Related Re-operation 0%
Related Re-admission 1.41% (1 in 71)
Surgical Site Infection 0%
Bleeding 0%
Leak 0%


** The above data was obtained from the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP) July 2023 risk adjusted Semi-Annual Report (SAR) provided to Carondelet St. Mary’s Hospital (CSM) using surgical data CSM supplied to the MBSAQIP registry. The July 2023 report is reflective of the full, prior calendar year.

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