Research Article

Incidence, Outcomes, and Factors Associated with Intra-Abdominal Hypertension and Primary Abdominal Compartment Syndrome in Abdominopelvic Injury Patients

Table 1

Patient characteristics.

CharacteristicsTotal (N = 38)Non-IAH (N = 32)IAH (N = 6)

Demographic
 Sex (M : F, n)26 : 1223 : 33 : 30.290
 Age (mean with SD, years)31.5 ± 12.731.4 ± 12.132.0 ± 12.00.920
 Weight (mean with SD, kg)61.2 ± 11.361.3 ± 12.060.5 ± 8.10.879
 Height (mean with SD, m)1.67 ± 0.091.67 ± 0.091.68 ± 0.080.909
 BMI (mean with SD, kg/m2)21.7 ± 2.821.8 ± 3.021.5 ± 1.80.798

Mechanism of injury
 Blunt : penetrating (n)34 : 429 : 35 : 10.593
 MVC (n (%))29 (76.3)25 (78.1)4 (66.7)0.545
 Fall from the height (n (%))3 (7.9)2 (6.3)1 (16.7)0.385
 Body assault (n (%))3 (7.9)3 (9.4)0 (0)0.435

Primary survey
 Airway compromised (n (%))7 (18.4)5 (15.6)2 (33.3)0.305
 Breathing and ventilation problem (n (%))6 (15.6)5 (15.6)1 (16.7)0.949
 Hemorrhagic shock (n (%))10 (26.3)6 (18.8)4 (66.7)0.014
 GCS < 13 (n (%))3 (7.9)3 (9.4)0 (0)0.435
 Hypothermia (n (%))1 (2.6)0 (0)1 (16.7)0.019

Initial vital signs
 SBP (mean with SD, mmHg)116 ± 19118 ± 16104 ± 290.104
 DBP (mean with SD, mmHg)74 ± 1576 ± 1364 ± 210.080
 MAP (mean with SD, mmHg)88 ± 1690 ± 1377 ± 240.076
 PR (mean with SD, bpm)101 ± 1899 ± 18113 ± 150.073
 RR (mean with SD,/min)21 ± 421 ± 423 ± 40.231
 BT (mean with SD, °C)36.9 ± 0.836.9 ± 0.836.6 ± 1.10.437

Abdominal signs
 Abdominal tenderness (n (%))19 (50)15 (46.9)4 (66.7)0.374
 Peritonitis (n (%))3 (7.9)2 (6.3)1 (16.7)0.385
 Abdominal distention (n (%))17 (44.7)11 (34.3)6 (100)0.003
 Abdominal wounds (n (%))9 (23.7)7 (21.9)2 (33.3)0.545
 Flank and back injury (n (%))3 (7.9)3 (9.4)0 (0)0.435
 Organ evisceration (n (%))2 (5.3)1 (3.1)1 (16.7)0.173

Initial imaging
 Pelvis fracture (n (%))4 (10.5)2 (6.3)2 (33.3)0.047
 Positive FAST (n (%))16 (42.1)12 (37.5)4 (66.7)0.184
 Positive abdominal CT (n (%))26 (68.4)22 (68.7)4 (66.7)0.549

Initial laboratory
Urine analysis0.887
  Microscopic hematuria (n (%))16 (42.1)13 (40.6)3 (50)
  Gross hematuria (n (%))6 (15.8)5 (15.6)1 (16.7)
 Hct (mean with SD, gm%)38.9 ± 6.139.4 ± 6.336.4 ± 4.60.271
 Hb (mean with SD, g/dL)12.9 ± 1.813.1 ± 1.811.8 ± 1.60.115
 Platelets count (mean with SD, × 103 cells/cu.mm)249 ± 61249 ± 60247 ± 740.946
 INR (mean with SD)1.1 ± 0.21.1 ± 0.11.3 ± 0.20.007
 Creatinine (mean with SD, g/dL)1.1 ± 0.31.0 ± 0.31.5 ± 0.20.001
 Bicarbonate (mean with SD, mmol/L)21.0 ± 3.821.8 ± 3.417.0 ± 3.10.003
 Base excess (mean with SD, mEq/L)−7.3 ± 8.3−4.2 ± 7.6−11.0 ± 8.10.146
 Lactate (mean with SD, mmol/L)5.7 ± 4.94.2 ± 3.87.6 ± 5.70.225

Abdominopelvic organ injury
 Diaphragm (n (%))1 (2.6)1 (3.1)0 (0)0.661
 Liver (n (%))19 (50)14 (43.8)5 (83.3)0.075
 Spleen (n (%))5 (13.2)3 (9.4)2 (33.3)0.111
 Kidney (n (%))13 (34.2)11 (34.3)2 (33.3)0.961
 Pancreas (n (%))1 (2.6)0 (0)1 (16.7)0.019
 Adrenal (n (%))1 (2.6)1 (3.1)0 (0)0.661
 Small bowel (n (%))3 (7.9)2 (6.3)1 (16.7)0.385
 Colon (n (%))3 (7.9)1 (3.1)2 (33.3)0.012
 Mesentery (n (%))5 (13.2)2 (6.3)3 (50)0.004
 Bladder (n (%))3 (7.9)3 (9.4)0 (0)0.435
 Internal iliac vessel (n (%))1 (2.6)1 (3.1)0 (0)0.661
 Abdominal wall (n (%))8 (21.1)7 (21.9)1 (16.7)0.774
 Multiple organ injury (n (%))18 (47.4)13 (40.6)5 (83.3)0.055

Abbreviated injury scale (AIS)
 Head AIS (3 : 4 : 5, n)9 : 0 : 18 : 0 : 01 : 0 : 10.090
 Face AIS (3 : 4 : 5, n)0 : 0 : 10 : 0 : 00 : 0 : 10.057
 Chest AIS (3 : 4 : 5, n)8 : 2 : 07 : 2 : 01 : 0 : 00.721
Abdominopelvic AIS (3 : 4 : 5, n)10 : 10 : 18 : 7 : 02 : 3 : 10.038
 Lower extremity and pelvis AIS (3 : 4 : 5, n)4 : 2 : 02 : 0 : 02 : 2 : 00.001
Injury severity scores (ISS) (mean with SD)19 ± 1116 ± 735 ± 17<0.001

Ten patients (26.8%) did not proceed to abdominal CT scan; six patients (15.8%) did not have initial INR result; thirteen cases (39.5%) had initial base excess and lactate data.