21 May 2026 : Clinical Research
Monitoring Oxygen Metabolism Using the Oxygen Reserve Index in Patients Undergoing Robotic Prostatectomy: A Prospective Observational Study
Małgorzata M. Barud
ABCDEF 1,2*, Bartłomiej P. Turek BEF 2, Dorota Siwicka ACDEFG 1,2
DOI: 10.12659/MSM.952156
Med Sci Monit 2026; 32:e952156
Table 1 Demographic and clinical characteristics of the study group.
| Variables | n (%) or median [IQR] (min–max) |
|---|---|
| Age (years) | 66 [65–67.1] (46–79) |
| Weight (kg) | 85 [82.9–88.1] (60–127) |
| Height (cm) | 176 [175–176] (164–190) |
| BMI (kg m-2) | 27.7 [27.1–28.1] (20.5–40.1) |
| ASA | |
| I | 16 (16.7%) |
| II | 65 (67.7%) |
| III | 15 (15.6%) |
| Heart disease | |
| Yes | 63 (65.6%) |
| No | 33 (34.4%) |
| Lung disease | |
| Yes | 14 (14.6%) |
| No | 82 (85.4%) |
| Smoking | |
| Yes | 17 (17.7%) |
| No | 79 (82.3%) |
| ORi BEG | 0 [0–0] (0–0.35) |
| Surgery time (min) | 130 [122.9–137.2] (84–207) |
| Trendelenburg position time (min) | 109.5 [104–118.1] (62–180) |
| The distribution of continuous variable was assessed using the D’Agostino-Pearson test. Due to the lack of normal distribution, quantitative variables are presented as medians, interquartile ranges [IQR], and min-max ranges. Qualitative variables are presented as n (%). BEG – before induction of anesthesia; BMI – body mass index; ASA – American Society of Anesthesiologist classification; ORi BEG – ORi in time point before induction of anesthesia. | |