Key result
Lower baroreflex sensitivity (4.4 vs 8.7 msecs/mm Hg; P=0.03) and reduced R-R interval variability (P<0.01) were significantly associated with death in critically ill neurosurgical patients.
Why the study?
Does power spectral analysis of cardiovascular variability predict outcome and survival in critically ill neurosurgical patients?
Observational (n=29)
No
Does power spectral analysis of cardiovascular variability predict outcome and survival in critically ill neurosurgical patients?
Reduced heart rate variability and baroreflex sensitivity are associated with mortality and poor recovery in critically ill neurosurgical patients.
Supports autonomic markers for mortality risk in neurosurgical ICU patients; leaves open prospective validation before clinical use.
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Haji-Michael et al. (2000) conducted an observational in Critically ill neurosurgical patients (n=29). Power spectral analysis of cardiovascular variability was evaluated on Quality of outcome and survival at 3 months (p=< .01). Lower baroreflex sensitivity (4.4 vs 8.7 msecs/mm Hg; P=0.03) and reduced R-R interval variability (P<0.01) were significantly associated with death in critically ill neurosurgical patients.
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