Temporary transvenous cardiac pacing in cathlab — myocardial infarction versus other causes — differences, complications, and prognosis. Data from a single-center retrospective analysis
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Abstract
Background: Transvenous temporary cardiac pacing (TTCP) is a lifesaving procedure, but the incidence of complications and prognosis depends on the underlying cause. The aim of this study was to compare the characteristics, complications, and prognosis in patients with myocardial infarction (MI) requiring TTCP vs. patients with TTCP due to other causes. Methods: The present analysis involved 244 cases in whom TTCP was performed between 2017 and 2021 in a high-volume cathlab. All the procedures were performed by an interventional cardiologist. MI constituted 46.3% of the patients (n = 113), including 63 ST-segment elevation MI patients (55.75%). Non-MI patients (control group) consisted of patients with any cause of bradycardia requiring TTCP. Results: Myocardial infarction patients requiring TTCP are younger and have a higher prevalence of hypertension and heart failure. The pacing lead is more frequently inserted during asystole/resuscitation, and pacing was needed for a longer time. MI patients required cardiac implantable electronic device implantation less frequently than in other causes (22% vs. 82%, p < 0.01). The incidence of TTCP complications did not differ. The incidence of in-hospital death was 6.5-fold higher in TTCP patients with MI. Logistic regression showed MI to be a strong predictor of in-hospital death (odds ratio: 8.1; 95% confidence interval: 1.3–57.9). Conclusions: In-hospital mortality in MI patients requiring TTCP is 6.5-fold higher than in other patients with bradycardia. The complication rate of TTCP is similar in MI and non-MI patients. It is not TTCP but the severity of MI itself and the fact that a pacing lead is frequently implanted in asystole or during resuscitation that is responsible for the higher mortality rate.
Keywords: transvenous temporary cardiac pacingtemporary pacemakercath labcritical caremyocardial infarction
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