Clinical Study

Insufflation with Humidified and Heated Carbon Dioxide in Short-Term Laparoscopy: A Double-Blinded Randomized Controlled Trial

Table 1

Baseline characteristics.

Intervention group ( = 48)Control group ( = 49)

Age 47.0 ± 8.246.7 ± 7.0

BMI (kg/m²)28.9 ± 5.825.6 ± 3.7

DiagnosisUterus myomatosus: 42 (87.5)Uterus myomatosus: 39 (79.6)
Hyperplasia: 2 (4.2)Hyperplasia: 4 (8.2)
Therapy-resistant bleeding disorder: 1 (2.1)Therapy-resistant bleeding disorder: 4 (8.2)
Cervical carcinoma in situ: 3 (6.3)Cervical carcinoma in situ: 2 (4.1)

Vaginal delivery (number)0: 11 (22.9)0: 13 (26.5)
1: 14 (29.2)1: 12 (24.5)
2: 14 (29.2)2: 21 (42.9)
3: 6 (12.5)3: 3 (6.1)
4: 1 (2.1)
5: 2 (4.2)

Caesarean section (number)0: 35 (72.9)0: 40 (81.6)
1: 10 (20.8)1: 6 (12.2)
3: 3 (6.3)2: 3 (6.1)

DiabetesYes: 1 (2.1)Yes: 2 (4.1)
No: 47 (97.9)No: 47 (95.9)

Cigarettes per day (number)4.8 ± 7.96.1 ± 9.8

Previous laparotomyYes: 2 (4.2)Yes: 9 (18.4)
No: 46 (95.8)No: 40 (81.6)

Previous laparoscopyYes: 18 (37.5)Yes: 12 (24.5)
No: 30 (62.5)No: 37 (75.5)

Operation time (min)85.7 ± 28.782.5 ± 23.2

Length of pneumoperitoneum* (min)35.7 ± 13.835.0 ± 16.4

Room temperature (°C)22.3 ± 1.122.3 ± 0.9

Total amount of gas (L)34.2 ± 21.432.2 ± 19.1

Blood loss (mL)97.2 ± 104.272.2 ± 79.9

Uterine weight (g)214.9 ± 173.2177.3 ± 127.8

Morphine intraoperative (mg)0.3 ± 1.50.3 ± 1.1

Morphine recovery room (mg)5.2 ± 5.24.5 ± 3.9

PCA-pump connection-midnight# (hours)9.8 ± 2.210.0 ± 2.4

Values are given as mean ± standard deviation or number (percent).
*summarizes the time of first and second laparoscopy.
#Time from connection of the PCA pump until midnight on operation day.