Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2009 Oct;146(4):678-83; discussion 683-5.
doi: 10.1016/j.surg.2009.07.011.

The pulmonary embolism risk score system reduces the incidence and mortality of pulmonary embolism after gastric bypass

Joseph A Caruana  1 , Paul M Anain, Dang Tuan Pham
Affiliations

The pulmonary embolism risk score system reduces the incidence and mortality of pulmonary embolism after gastric bypass

Joseph A Caruana et al. Surgery. 2009 Oct.

Abstract

Background: Pulmonary embolism (PE) is a leading cause of death after roux-en-Y gastric bypass (RYGB); therefore, current recommendations for prophylaxis may be inadequate.

Methods: We reviewed our first 1,341 patients (controls) who underwent RYGB and weighted factors that may have contributed to PE to arrive at a pulmonary embolism risk score (PERS). We postulated that more aggressive prophylaxis in higher risk patients might have reduced the incidence of PE. We tested our hypothesis by basing prophylaxis on the PERS in 1,652 subsequent RYGB patients (study group). Standard risk patients (PERS <4) were ambulated 2 hours after surgery, had application of intermittent compression devices, and received subcutaneous low-dose, unfractionated heparin (LDUH). Intermediate risk patients (PERS = 4) received standard prophylaxis and 3 weeks of postdischarge LDUH. High-risk patients (PERS >4) had postdischarge LDUH and a preoperative vena cava filter.

Results: The 0.36% incidence of PE (6 patients) in the study group was significantly lower (P <.05) than the 1% incidence (13 patients) in the controls. Three of 189 men in the control group died of PE, whereas there were no deaths from PE in 271 men in the study group (P <.05).

Conclusion: The PERS may be an appropriate scoring system for determining preoperatively the level of risk for postoperative PE in RYGB patients. Basing prophylaxis on the level of risk reduces the incidence and mortality of PE and consumes resources judiciously.

PubMed Disclaimer