Table 2.
Characteristics of patients and risk factors for BR at initial presentation in acute SMAE (n=62)
| Characteristic | Non-BR group (n=31) | BR group (n=31) | P-value |
|---|---|---|---|
| Age (y) | 70.7 (39–87) | 72.4 (43–89) | 0.564 |
| Male | 12 (38.7) | 14 (45.2) | 0.607 |
| Duration (h) | |||
| Presentation delay | 21.7 (1–120) | 36.6 (2–192) | 0.099 |
| Overall surgical delay | 27.1 (7–85)a | 57.7 (7–240) | 0.044 |
| In-hospital surgical delay | 6.2 (2–18)a | 21.1 (1–212) | 0.685 |
| Coexisting medical condition | |||
| Atrial fibrillation | 22 (71.0) | 21 (67.7) | 0.783 |
| Hypertension | 12 (38.7) | 19 (61.3) | 0.075 |
| Diabetes mellitus | 9 (29.0) | 8 (25.8) | 0.776 |
| Smoking (current smoker) | 9 (29.0) | 9 (29.0) | 1.000 |
| Hyperlipidemia | 12 (38.7) | 9 (29.0) | 0.421 |
| Ischemic heart disease | 5 (16.1) | 3 (9.7) | 0.707 |
| Congestive heart failure | 11 (35.5) | 8 (25.8) | 0.409 |
| Cerebral infarction | 6 (19.4) | 4 (12.9) | 0.490 |
| Renal insufficiency (s-Cr>1.5 mg/dL) | 4 (12.9) | 10 (32.3) | 0.068 |
| History of embolism | 10 (32.3) | 6 (19.4) | 0.246 |
| Combined embolism | 10 (32.3) | 6 (19.4) | 0.246 |
| Clinical presentations | |||
| Vomiting | 18 (58.1) | 17 (54.8) | 0.798 |
| Diarrhea | 12 (38.7) | 9 (29.0) | 0.421 |
| Hematochezia | 9 (29.0) | 6 (19.4) | 0.374 |
| Abdominal distension | 1 (3.2) | 11 (35.5) | 0.001 |
| Abdominal tenderness | 23 (74.2) | 29 (93.5) | 0.038 |
| Rebound tenderness | 3 (9.7) | 10 (32.3) | 0.029 |
| Laboratory findings | |||
| White blood cell count (×103/μL) | 17.91 (5.45–54.51) | 16.09 (1.47–42.39) | 0.450 |
| C-reactive protein (mg/dL) | 4.3 (0.2–22.9) | 11.6 (0.1–35.4) | 0.010 |
Values are presented as mean (range) or number (%).
SMAE, superior mesenteric artery embolism; BR, bowel resection; s-Cr, serum creatinine.
a
The duration was analyzed for 26 patients after exclusion of 5 patients with conservative treatment.