Left ventricular contractile reserve by stress echocardiography as a predictor of response to cardiac resynchronization therapy in heart failure: a systematic review and meta-analysis.

BMC Cardiovasc Disord · 2017 · PMC5559857 · PMID 28814264

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The sentences

highly significantno p-value reported

When only dobutamine stress was considered, the data remained highly significant in spite of the reduced sample size, and with substantially reduced variability.

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