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Total circulatory arrest as a support modality in congenital heart surgery: review and current evidence
Debasis Das1, Nilanjan Dutta1, Kuntal Roy Chowdhuri2
1Department of Cardiac Surgery, Narayana Superspeciality Hospital, 120/1 Andul Road, Howrah, 711103 India.
Abstract:
The use of total circulatory arrest (TCA)/deep hypothermic circulatory arrest (DHCA) as a support modality in congenital heart surgery is a time-tested strategy. However, with technological advances, the widespread use of this technique has decreased. Adjunctive cerebral perfusion with continuous cardiopulmonary bypass (CPB) gradually has become more popular with a view to reduce the complications related to DHCA. In addition, better neuromonitoring and neuroprotective strategies have made DHCA much safer. However, the level of evidence to support the best way to protect the brain during congenital heart surgery is insufficient. This review analyzes the history, physiology, techniques of DHCA, as well as other alternative strategies like selective cerebral perfusion and presents the current available evidence.
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