Why the study?
Post-pericardiectomy right ventricular failure has been reported but remains not well-studied, prompting investigation into imaging parameters that could predict RV function and patient outcomes.
Does multimodality imaging predict RV function and the need for prolonged inotropic support in patients with constrictive pericarditis undergoing pericardiectomy?
Does multimodality imaging predict RV function and the need for prolonged inotropic support in patients with constrictive pericarditis undergoing pericardiectomy?
Smaller RV cavity size and a novel pericardial scoring system based on multimodality imaging predict the need for prolonged inotropic support following pericardiectomy for constrictive pericarditis.
Preoperative imaging may identify RV risk post-pericardiectomy; leaves open need for prospective validation before clinical use.
BACKGROUND: Post-pericardiectomy right ventricular (RV) failure has been reported but it remains not well-studied. To investigate imaging parameters that could predict RV function and the outcome of patients post-pericardiectomy. METHODS: We analysed data from a total of 53 CP patients undergoing pericardiectomy. Preoperative, early and at 6 months postoperative echocardiographic (echo) imaging datasets were analysed and correlated with preoperative cardiac magnetic resonance (CMR), cardiac computed tomography scans and histology. The primary endpoint of the study was RV functional status early postoperatively and at 6 months. Secondary endpoint was the need for prolonged inotropic support. RESULTS: A cause of CP was identified in 26 patients (49%). Inotropic support ≥ 48 hours was required in n = 28 (53%) of patients and was correlated with lower preoperative RV areas by echo or RV volumes by CMR (p < 0.05 for all). A pericardial score based on pericardial thickness/calcification and epicardial fat thickness had good diagnostic accuracy to identify patients requiring prolonged use of inotropes (area under the curve, 0.825; 95% confidence interval, 0.674-0.976). Pericardiectomy resulted in RV decompression and impaired RV function early postoperatively (fractional area change: 40.5% ± 8.8% preoperatively vs. 31.4% ± 10.4% early postoperatively vs. 42.5% ± 10.2% at 6 months, p < 0.001). CONCLUSIONS: We show that a smaller RV cavity size and a pericardial scoring system are associated with prolonged inotropic support in CP patients undergoing pericardiectomy. RV systolic impairment post decompression is present in most patients, but it is only transient.
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Azzu et al. (2021) studied this question.
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