Table 2.
Muscle sympathetic nerve activity in patients with SIC in the acute and recovery phase
| Variable | SIC acute phase (n = 5) | SIC recovery phase (n = 7) | p value |
|---|---|---|---|
| Age (years) | 70 (60–79) | 64 (56–72) | 0.5 |
| BMI (kg/m2) | 29 (24–34) | 22 (22–24) | 0.05 |
| Hemodynamic variables | |||
| SBP (mmHg) | 105 (104–122) | 113 (98–115) | 1.0 |
| DBP (mmHg) | 56 (40–67) | 60 (57–66) | 0.4 |
| MAP (mmHg) | 74 (62–80) | 78 (77–80) | 0.5 |
| HR (beats/min) | 77 (51–83) | 60 (49–61) | 0.4 |
| r–r interval (sec) | 0.78 (0.70–1.16) | 1.00 (0.98–1.2) | 0.4 |
| LVEF (%) | 50 (35–60) | 60 (57–60) | 0.2 |
| Microneurography | |||
| MSNA (bursts/min) | 47 (20–50) | 25 (17–34) | 0.2 |
| MSNA (bursts/100 beats) | 57 (39–65) | 51 (29–56) | 0.3 |
| MSNA (median amp %) | 34 (33–42) | 39 (32–41) | 1.0 |
Measures are shown as the median and 25th and 75th percentiles
BMI body mass index, HR heart rate, LVEF (%) left ventricular ejection fraction, MSNA muscle sympathetic nerve activity