Journal of Clinical Medicine Research, ISSN 1918-3003 print, 1918-3011 online, Open Access
Article copyright, the authors; Journal compilation copyright, J Clin Med Res and Elmer Press Inc
Journal website https://jocmr.elmerjournals.com

Original Article

Volume 16, Number 7-8, August 2024, pages 335-344

Preoperative Autologous Blood Donation for Rh-Negative Pregnant Women Undergoing Cesarean Sections

Figures

↓  Figure 1. Flowchart illustrating the selection process for pregnancies enrolled in the autologous blood donation program. RBC: red blood cell.
Figure 1.
↓  Figure 2. Hemoglobin (a) and hematocrit (b) levels were measured at three different time points: 2 weeks and 1 week before the C-section, during the C-section, and after the C-section. C/S: C-section; wk: week; C-section: cesarean sections.
Figure 2.
↓  Figure 3. Flowchart depicting the pregnancy care pathway for women at different stages in the Obstetrics and Gynecology Department of the hospital, encompassing laboratory tests and decision-making regarding delivery. HR: heart rate; BP: blood pressure; SpO2: oxygen saturation; CBC: complete blood count; OF: osmotic fragility; DCIP: dichlorophenol indophenol precipitation.
Figure 3.
↓  Figure 4. Flowchart illustrating childbirth decisions and preparations for autologous blood donation in pregnancies with rare blood groups (Rh-negative). RBC: red blood cell.
Figure 4.

Tables

↓  Table 1. History of Participants Enrolled in the Study at Takuapa Hospital, PhangNga, Thailand
 
Pregnant women Age ABO Rh Baby gender Baby weight (g)
1 30 AB Negative Boy 3,590
2 24 A Negative Girl 3,070
3 31 B Negative Girl 4,080
4 27 O Negative Girl 3,200
5 41 O Negative Girl 2,870
6 28 O Negative Boy 3,210
7 17 A Negative Girl 2,730
8 18 B Negative Boy 3,000
9 40 O Negative Boy 2,640
10 21 O Negative Boy 3,160
11 32 B Negative Boy 3,820
12 25 A Negative Girl 3,220

 

↓  Table 2. Participating Pregnancy Demographics at Takuapa Hospital, PhangNga, Thailand
 
Demographic variables Pregnancy (n = 12)
Age (years)
  Range 17 - 41
  Mean 27.83
BMI category (kg/m2), n (%)
  Underweight (< 18.5) 0 (0)
  Normal weight (18.5 - 24.9) 4 (33.33)
  Overweight (25.0 - 29.9) 6 (50.00)
  Obesity class I (30.0 - 34.9) 2 (16.67)
ABO, n (%)
  AB 1 (8.33)
  A 3 (25.00)
  B 3 (25.00)
  O 5 (41.67)
Rh, n (%)
  Negative 12 (100)

 

↓  Table 3. Baby Demographics of the Participating Pregnancies
 
Demographic variables Baby (n = 12)
Body weight (g)
  Range 2,640 - 4,080
  Mean 3,216
Gender, %
  Male 50
  Female 50

 

↓  Table 4. Levels of Hemoglobin and Hematocrit Measured at Different Time Points
 
Pregnant women 2 weeks Pre-C/S 1 week Pre-C/S On C/S 1 week Post-C/S, on discharge
Hb (g/dL) Hct (%) Hb (g/dL) Hct (%) Hb (g/dL) Hct (%) Hct (%)
C/S: C-section; C-section: cesarean sections; Hb: hemoglobin; Hct: hematocrit; SD: standard deviation.
1 12.7 35.6 12.3 35.3 12.2 34.7 34
2 12.1 36.9 11.6 34.9 11.9 36.2 35
3 12.4 36.5 11.6 34.2 11.1 33.4 38
4 12.7 37.0 12.8 36.9 11.2 35.0 31
5 13.4 37.2 13.0 36.2 13.1 36.7 36
6 12.5 38.7 12.1 37.8 12.2 37.0 39
7 12.3 34.2 11.3 33.0 11.3 32.2 33
8 12.3 35.3 11.0 33.0 10.2 31.8 32
9 12.6 37.1 12.5 38.0 12.0 37.0 37
10 12.0 34.5 12.3 35.0 11.0 32.8 35
11 12.4 36.5 12.7 38.8 11.6 35.0 33
12 13.0 37.5 13.3 36.5 11.2 31.3 35
Mean 12.53 36.42 12.21 35.80 11.58 34.43 34.83
SD 0.39 1.30 0.71 1.90 0.75 2.08 2.41