Increases in Heart Rate Variability Signal Improved Outcomes in Rapid Response Team Consultations: A Cohort Study

Table 1

Baseline patient characteristics.

	Number
Sepsis	58 (64%)
APACHE II score	23.5 ± 7.3
Diagnosis at RRT activation
Acute respiratory failure^3	30 (33%)
Hepatic and GI failure^4	19 (21%)
Renal failure^5	15 (16.5%)
Malignancy	20 (22%)
Miscellaneous^6	7 (8%)
Reason for RRT consultation^7
Tachypnea	50 (55%)
Hypotension	39 (43%)
Brady or tachycardia	32 (35%)
Depressed mentation	23 (25%)
Subjective concern of nurse	3 (3%)
SOFA^1  scores
Day 0	9.1 ± 4.9
Day 1	8.8 ± 5.1
Day 2	7.9 ± 5.3
Serum lactate at baseline (mmol/L)	1.8 (IQR 1.1–4.6)
MAP^2 at baseline (mmHg)	78 ± 18.9
Vasopressors
On day 0	36 (40%)
On day 1	34 (37%)
On day 2	19 (21%)

¹SOFA, Sequential Organ Failure Assessment score; ²MAP, mean arterial pressure; ³acute respiratory failure includes ARDS; ⁴decompensated cirrhosis, cholangitis, pancreatitis, and GI bleed; ⁵acute kidney injury (end-stage renal disease); ⁶intracranial hemorrhage, stroke, encephalitis, and collagen vascular diseases; ⁷more than one.