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Obes Surg. 2018 Feb;28(2):541-547. doi: 10.1007/s11695-017-2909-x.

Mandatory Risk Assessment Reduces Venous Thromboembolism in Bariatric Surgery Patients.

Author information

1
Division of General, Thoracic and Vascular Surgery, Bariatric & Metabolic Institute, Surgery Institute, Sheikh Khalifa Medical City, Abu Dhabi, United Arab Emirates. Nimeri@gmail.com.
2
Division of General, Thoracic and Vascular Surgery, Bariatric & Metabolic Institute, Surgery Institute, Sheikh Khalifa Medical City, Abu Dhabi, United Arab Emirates.
3
Abu Dhabi ACGME-I Accredited Surgery Residency Program, Abu Dhabi, United Arab Emirates.

Abstract

INTRODUCTION:

Bariatric surgery patients are at high risk for venous thromboembolism (VTE), and chemoprophylaxis is recommended.

METHODS:

Sheikh Khalifa Medical City (SKMC) is an American College of Surgeons National Surgical Quality Improvement Program (ACS NSQIP) member since 2009. We report the rates of VTE in bariatric surgery patients from 2010 to 2016 compared to ACS NSQIP bariatric surgery programs before and after switching from heparin to low molecular weight heparin (LMWH), initiating mandatory risk assessment using Caprini scoring for VTE and adopting an aggressive strategy for high-risk patients regarding dosage of LMWH and chemoprophylaxis after discharge.

RESULTS:

During the study period, there were 1152 cases (laparoscopic Roux-en-Y gastric bypass (LRYGB) 625 and laparoscopic sleeve gastrectomy (LSG) 527) at Bariatric & Metabolic Institute (BMI) Abu Dhabi compared to 65,693 cases (LRYGB 32,130 and LSG 33,563) at ACS NSQIP bariatric surgery programs. VTE rates remained stable at ACS NSQIP bariatric surgery programs from 2010 to 2016 (0.45, 0.45, 0.45, 0.25, 0.35, 0.3, and 0.3%). In contrast, VTE rates at BMI Abu Dhabi decreased from 2.2% in 2011 to 0.35% after we adopted an aggressive strategy to VTE without an increase in bleeding complications. LRYGB patients with VTE had higher OR time, leak, collection, and mortality at ACS NSQIP hospitals compared to those at BMI Abu Dhabi. In contrast, rates were similar in LSG patients with VTE.

CONCLUSION:

Changing our approach to VTE management led our VTE rates to decrease and become like those of ACS NSQIP bariatric surgery patients in LSG and LRYGB.

KEYWORDS:

Bariatric surgery; Mandatory risk assessment; Venous thromboembolism

PMID:
28836135
DOI:
10.1007/s11695-017-2909-x

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