Relationship between Abdominal Circumference and Incidence of Hypotension during Cesarean Section under Spinal Anesthesia
Table 1
Patient characteristics according to the study group.
Smaller AC group (n = 49)
Larger AC group (n = 51)
value
aAge, years, median (IQR)
29 (27–32)
32 (29–36)
<0.01
Body mass index (kg/m2)
24.44 (23.29–27.02)
30.94 (28.32–34.57)
<0.01
bASA physical status
0.67
2
46 (93.9)
49 (96.1)
3
3 (6.1)
2 (3.9)
Hemodynamic variables at baseline
Systolic blood pressure (mmHg)
117.81 ± 12.10
126.78 ± 11.79
<0.01
Diastolic blood pressure (mmHg)
69.44 ± 9.42
74.15 ± 12.24
0.03
Mean arterial pressure (mmHg)
85.57 ± 9.44
91.69 ± 10.76
<0.01
Heart rate (beats per minute)
84.16 ± 10.91
89.25 ± 12.18
0.03
Perioperative data
aTotal operative time (minutes)
75 (65–85)
75 (70–85)
0.60
aBlood loss (mL)
400 (300–425)
450 (300–600)
0.04
aTotal crystalloids used (mL)
1700 (1400–2025)
1600 (1350–1880)
0.39
aUrine output (mL)
100 (50–100)
100 (50–200)
0.44
aNeonatal weight (g)
3000 (2805–3140)
3430 (3070–3720)
<0.01
Apgar at 1 minute
8 (8–9)
8 (8–9)
0.44
Apgar at 5 minutes
9 (9–10)
9 (9–10)
0.64
bLevel of anesthesia
0.48
T2
1 (2%)
2 (3.9%)
T4
44 (89.8%)
48 (94.1%)
T5
1 (2%)
0
T6
3 (6.1%)
1 (2%)
aDose of 0.5% bupivacaine heavy (mL)
2.2 (2.2–2.2)
2.2 (2.2–2.4)
0.14
Data are presented as amedian (IQR) and bnumber (%). Data were analyzed using chi-square test and Mann–Whitney U test. AC: abdominal circumference; ASA: American Society of Anesthesiologists; IQR: interquartile range.
