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Receiver operating characteristic curves of circumferential strain (CS) to distinguish constrictive pericarditis patients with acute postoperative refractory hypotension from those without. The results showed the area under the curve (AUC) of free wall epicardial CS was 0.70 (P=0.02). Additionally in tuberculous patients, the AUC of epicardial CS was 0.80 (P=0.01), and GCS was 0.77 (P=0.03). CS, circumferential strain; TB, tuberculosis.
