Heart Rate Variability as a Marker of Disease Severity in Pulmonary Arterial Hypertension: A Prospective Cohort Study.

Pulm Circ · 2025 · PMC11955741 · PMID 40171396

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a nonsignificant trendno p-value reported

Over 6 months the RMSSD increased in the cohort, and there was also a nonsignificant trend towards increased SDNN and decreased HR (Figure 4 ). 3.3 Relationship Between HRV, HR, and PAH Severity We then examined the relationship between HRV metrics, HR, and PAH disease severity.

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