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Outcomes of pericardiectomy for constrictive pericarditis following mediastinal irradiation

J Card Surg. 2021 Sep 21. doi: 10.1111/jocs.15996. Online ahead of print.

ABSTRACT

BACKGROUND: Pericardiectomy for postradiation constrictive pericarditis has been reported to generally have unfavorable outcomes. This study sought to evaluate surgical outcomes in a large cohort of patients undergoing pericardiectomy for radiation-associated pericardial constriction.

METHODS: A retrospective analysis of all patients (≥18 years) who underwent pericardiectomy for a diagnosis of constrictive pericarditis with a prior history of mediastinal irradiation from June 2002 to June 2019 was conducted. There were 100 patients (mean age 57.2 ± 10.1 years, 49% females) who met the inclusion criteria. Records were reviewed to look at the surgical approach, the extent of resection, early mortality, and late survival.

RESULTS: The overall operative mortality was 10.1% (n = 10). The rate of operative mortality decreased over the study period; however, the test of the trend was not statistically significant (p = .062). Hodgkin’s disease was the most common malignancy (64%) for which mediastinal radiation had been received. Only 27% of patients had an isolated pericardiectomy, and concomitant pericardiectomy and valve surgery were performed in 46% of patients. Radical resection was performed in 50% of patients, whereas 47% of patients underwent subtotal resection. Prolonged ventilation (26%), atrial fibrillation (21%), and pleural effusion (16%) were the most common postoperative complications. The overall 1, 5-, and 10-years survival was 73.6%, 53.4%, and 32.1%, respectively. Increasing age (hazard ratio, 1.044, 95% confidence interval 1.017-1.073) appeared to have a significant negative effect on overall survival in the univariate model.

CONCLUSION: Pericardiectomy performed for radiation-associated constrictive pericarditis has poor long-term outcomes. The early mortality, though high (~10%), has been showing a decreasing trend in the test of time.

PMID:34547827 | DOI:10.1111/jocs.15996

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