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Multicenter Study
. 2016 Aug;102(2):628-35.
doi: 10.1016/j.athoracsur.2016.02.043. Epub 2016 May 4.

Seminal Postoperative Complications and Mode of Death After Pediatric Cardiac Surgical Procedures

Michael Gaies  1 , Sara K Pasquali  2 , Janet E Donohue  3 , Justin B Dimick  4 , Sarah Limbach  5 , Nancy Burnham  5 , Chitra Ravishankar  6 , Richard G Ohye  7 , J William Gaynor  5 , Christopher E Mascio  5
Affiliations
Multicenter Study

Seminal Postoperative Complications and Mode of Death After Pediatric Cardiac Surgical Procedures

Michael Gaies et al. Ann Thorac Surg. 2016 Aug.

Abstract

Background: Understanding the seminal complications leading to death after pediatric cardiac surgical procedures may provide opportunities to reduce mortality. This study analyzed all deaths at two pediatric cardiac surgical programs and developed a method to identify the seminal complications and modes of death.

Methods: Trained nurses abstracted all cases of in-hospital mortality meeting inclusion criteria from each site over 5 years (2008 to 2012). Complication definitions were consistent with those of a multicenter clinical registry. An adjudication committee assigned a seminal complication in each case (the complication initiating the cascade of events leading to death). Seminal complications were grouped into categories to designate "mode of death." The epidemiology of seminal complications and of mode of death was described.

Results: In 191 subjects, low cardiac output syndrome (71% of all subjects), cardiac arrest (52%), and arrhythmia (48%) were the most common complications. The committee assigned low cardiac output syndrome (30%), failure to separate from bypass (16%), and cardiac arrest (12%) most frequently as seminal complications. Seminal complications occurred a median 2 hours (interquartile range [IQR], 0 to 35 hours) postoperatively. Patients experienced a median of seven (IQR, 3 to 12) additional complications before death at a median of 15 days (IQR, 4 to 46). Systemic circulatory failure was the most common mode of death (51%), followed by inadequate pulmonary blood flow (13%) and cardiac arrest (12%).

Conclusions: Seminal complications occurred early postoperatively, and systemic circulatory failure was the most common mode of death. Our classification system is likely scalable for subsequent multicenter analysis to understand cause-specific mortality variation across hospitals and to drive quality improvement.

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Figures

Figure 1
Figure 1
Conceptual model of postoperative complications leading to mortality
Figure 2
Figure 2
Distribution of modes of death (%, N=191)
See this image and copyright information in PMC

References

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