Retrospective Analysis of Bypass-Related Complications at Iran's Cardiovascular Surgical Centers

Document Type : Original Article

Authors

1 Department of Anesthesiology, Lung Diseases Research Center, School of Medicine, Mashhad University of Medical Science , Mashhad, Iran.

2 Department of Cardiac Surgery, Baqiyatallah Hospital, Baqiyatallah University of Medical Sciences, Tehran, Iran.

3 Department of Medicine, School of Medicine, Qazvin University of Medical Sciences, Qazvin, Iran

4 Department of Community Medicine and Public Health, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.

5 Department of Cardiac Surgery, Imam Reza Hospital, Mashhad University of Medical Sciences, Mashhad, Iran.

6 Department of Anesthesiology, Imam Khomeini Hospital Complex, Tehran Univesity of Medical Siences , Tehran, Iran.

7 Department of Perfusion Technology, Faculty of Medical Sciences, Mashhad University of Medical Sciences, Mashhad, Iran.

8 Department of Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.

Abstract

Introduction: In addition to the well-known benefits of cardiopulmonary bypass (CPB), there are also certain possible risks, some of which are avoidable and some of which are accidental. In addition to CPB, potentially life-threatening consequences include human error and mechanical disruptions. The purpose of this study is to conduct a retrospective analysis of CPB accidents in Iranian cardiovascular surgery departments.
Methods: This study included 151 Iranian perfusionists who were evaluated using a questionnaire created by the researchers. The questionnaire recorded all participants' demographic information as well as their experiences with human errors (e.g., perfusionist fatigue and drowsiness; errors in CPB circuit arrangement; and so on) and mechanical disturbances (cooling-warming circuit, oxygenator failure, electrical disruption, and so on). SPSS Version 16 was used to analyze all of the data.
Result: 1) venous obstruction and improper venous return had the highest recurrence rate of 89.4%, 2) Removing the venous cannula and venting the venous path 86.8%, 3) 79.5% were unable to raise (ACT) more than 400. Most significant injuries were caused by clots or thrombi during CPB (2.6%), 2) failure of the oxygenator (2.6%). Most deaths were caused by an air embolism (5.29).




Conclusions: Although the occurrence of human errors and mechanical disturbances cannot be predicted, they can be mitigated by the sharing of accidents and mistakes.

Keywords


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