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Paluszek, Corinna; Brenner, Paolo; Pichlmaier, Maximilian; Haas, Nikolaus A.; Dalla-Pozza, Robert; Hagl, Christian and Hakami, Lale (2019): Risk Factors and Outcome of Post Fallot Repair Junctional Ectopic Tachycardia (JET). In: World Journal for Pediatric and Congenital Heart Surgery, Vol. 10, No. 1: pp. 50-57

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Abstract

Background: Junctional ectopic tachycardia (JET) is a common arrhythmia causing hemodynamic impairment following corrective cardiac surgery such as tetralogy of Fallot (TOF) repair. Methods: We report our experience with postoperative JET following surgical repair of TOF. The retrospective study was done from 2003 to 2012 with a total of 105 patients who underwent TOF repair. These patients' clinical and electrocardiographic data (pre-, intra-, and postoperative) were monitored to identify risk factors for the occurrence of JET and to evaluate the outcome of the affected patients. Results: IncidenceFourteen patients developed JET, with only four patients going directly from sinus rhythm to JET. In all others, either a transient atrioventricular (AV) block or a junctional rhythm preceded JET, mostly intraoperatively, showing a significant relation (P = .010). AgePatients with JET were of younger age (P = .025) and had longer cardiopulmonary bypass (P = .044) and aortic cross-clamping times (P = .038). Increased cost and careThe occurrence of JET was associated with a longer stay in the intensive care unit (ICU) and a prolonged need for inotropic support and mechanical ventilation. Time to rate control correlated with length of ICU and hospital stay. Mortality: All JET patients converted into sinus rhythm, one of them died shortly after cessation of JET and two patients subsequently developed a first-degree AV block. Conclusion: The occurrence of JET remains an important complication during the initial postoperative period by increasing mechanical ventilation time, the need for inotropic support, and prolonging the length of ICU and hospital stay. Risk factors are younger age, longer aortic cross-clamping/bypass times, and intraoperative arrhythmias.

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