Ultrasound Measured Depth of Pelvic Free Fluid Correlates Well with Blood Loss Volume in Patients with Ectopic Pregnancy
Table 1
Clinical characteristics of the ectopic pregnancy patients.
Characteristic
Haemorrhage <800 ml (N = 190)
Haemorrhage ≥800 ml (N = 91)
Number (%) or mean ± SD
value
Difference or OR (95% CI)
Age-yr.
30.91 ± 5.19
30.98 ± 5.99
0.917
−0.7 (−1.4 to 1.3)
BMIa, no. (%)
≤18.4
26 (13.7)
12 (13.2)
—
—
18.5–23.9
120 (63.2)
51 (56.0)
0.831
0.9 (0.4 to 2.0)
24.0–27.9
29 (15.3)
17 (18.7)
0.606
1.3 (0.5 to 3.2)
≥28.0
10 (5.3)
4 (4.4)
1.000
0.9 (0.2 to 3.3)
ASAb class, no. (%)
I
123 (64.7)
27 (29.7)
—
—
II
64 (33.7)
47 (51.6)
<0.001
3.3 (1.9 to 5.9)
III
2 (1.1)
16 (17.6)
<0.001
36.4 (7.9 to 167.9)
IV
0 (0.0)
1 (1.1)
0.185
13.5 (0.5 to 339.6)
Mean volume of haemorrhage, ml
263.84 ± 187.93
1694.51 ± 882.34
<0.001
−1430.7 (−1562.3 to −1299.0)
Previous abdominal or pelvic surgery, no. (%)
101 (40.2)
49 (44.5)
0.710
1.1 (0.7 to 1.8)
Abdominal pain, no. (%)
197 (78.5)
106 (96.4)
0.007
6.1 (1.4 to 26.84)
Ultrasonography
Types
TVSc only, no. (%)
102 (53.7)
28 (30.8)
—
—
TASd only, no. (%)
82 (43.2)
63 (69.2)
<0.001
2.8 (1.6 to 4.8)
Both, no. (%)
6 (3.2)
0 (0.0)
0.345
0.3 (0.0 to 5.1)
Depth
Superoinferior depth of hemoperitoneum by TVS, cm
2.48 ± 1.51
4.45 ± 2.15
<0.001
−2.0 (−2.7 to −1.3)
Anteroposterior depth of hemoperitoneum by TAS, cm
2.55 ± 1.19
4.45 ± 2.56
<0.001
−1.9 (−2.5 to −1.3)
Surgery procedure, no. (%)
Laparoscopy
188 (98.9)
88 (96.7)
—
—
Laparotomy
0 (0.0)
1 (1.1)
0.321
6.4 (0.3 to 158.4)
Fluids infusion
Crystoloid solution infusion, ml
1086.84 ± 368.88
1259.34 ± 510.71
0.001
−172.5 (−277.9 to −67.1)
Colloid solution infusion, ml
178.95 ± 261.41
648.35 ± 383.65
<0.001
−469.4 (−546.3 to −392.6)
Blood products
RBCe transfusion, no. (%)
0 (0.0)
13 (14.3)
<0.001
65.5 (3.8 to 1115.8)
Plasma transfusion, no. (%)
0 (0.0)
7 (7.7)
<0.001
32.0 (1.8 to 566.4)
Cell salvage, no. (%)
2 (1.1)
49 (53.8)
<0.001
109.7 (25.6 to 468.9)
Preoperative haemoglobin (pre-Hgbf), g/L
118.56 ± 13.09
101.48 ± 14.84
<0.001
17.1 (13.6 to 20.5)
Postoperative haemoglobin (post-Hgb), g/L
104.93 ± 12.50
90.48 ± 15.54
<0.001
14.4 (10.9 to 18.0)
Post-Hgb–Pre-Hgb, g/L
−13.33 ± 10.03
−11.42 ± 16.17
0.248
−1.9 (−5.2 to 1.3)
a: BMI, body mass index; b: ASA, American Society of Anesthesiologists; c: TVS, transvaginal ultrasound; d: TAS, transabdominal ultrasound; e: RBC, red blood cell; f: Hgb, haemoglobin.
