Impact of the Hormonal Status in Women on Intraoperative Hypothermia during Laparoscopic Gynecologic Surgery when Considering the Fresh Gas Flow Rate: A Retrospective Study
Table 1
Demographic and perioperative data.
Variables
Groups
Follicular ()
Luteal ()
Menopause ()
95% CI
Age (y)
vs follicular: 10.5-11.6 vs luteal: 10.5-11.6
Body mass index (kg/m2)
vs follicular: 0.34-1.29 vs luteal: 0.07-1.02
Core body temperature before anesthesia induction (°C)
vs follicular: 0.25-0.34 vs menopause: 0.34-0.43 †vs menopause: 0.01-0.13
Estradiol (pg)
vs follicular: 10.35-34.1 vs menopause: 117.25-141.86 †vs menopause: 95.02-119.68
Progesterone (ng)
vs follicular: 11.44-12.32 vs menopause: 10.90-12.32 †vs menopause: 0.15-1.57
Fresh gas flow rate
Low (≤1 L/min)
112 (48.3)
124 (53.0)
114 (56.7)
High (3 or 4 L/min)
120 (51.7)
110 (47.0)
84 (43.3)
Type of surgery
Laparoscopic subtotal hysterectomy
51 (22.0)
49 (20.9)
45 (22.4)
Laparoscopic-assisted vaginal hysterectomy
149 (59.9)
142 (60.7)
117 (58.2)
Total laparoscopic radical hysterectomy
42 (18.1)
43 (18.4)
39 (19.4)
Duration of anesthesia (min)
Duration of surgery (min)
Amount of fluid infused (mL)
Nasopharyngeal body temperature at anesthesia reversal (°C)
vs follicular: 0.078-0.22 vs menopause: 0.09-0.24
The incidence of hypothermia
83 (35.8)
69 (34.3)
Time to onset of hypothermia
vs follicular: -15.44-0.05 vs menopause: -14.25–1.83
TM temperature (°C) in the PACU
vs follicular: 0.08-0.22 vs menopause: 0.09-0.06
Shivering after anesthesia
47 (20.3)
26 (11.1)
44 (21.9)
Meperidine (25 mg) use
34 (14.7)
18 (7.7)
29 (14.4)
Values are expressed as (%). versus the other two groups. † versus the menopause group. PACU: postanesthesia care unit; TM: tympanic membrane; CI: confidence interval.
