Clinical Scorecard: Patient Outcomes and Clinical Features in Acute Mesenteric Ischemia: A Retrospective Cohort Study
At a Glance
Category
Detail
Condition
Acute mesenteric ischemia (AMI) is a sudden interruption of blood supply to the small intestine causing severe abdominal pain and rapid progression to intestinal necrosis and death if untreated.
Key Mechanisms
Embolic occlusion of the superior mesenteric artery (SMA), arterial and venous thrombosis, and non-occlusive mesenteric ischemia (NOMI) due to splanchnic vasoconstriction.
Target Population
Predominantly elderly patients and those with pre-existing cardiac diseases.
Care Setting
Emergency surgical care at high-volume surgical centers with rapid diagnostic imaging and operative intervention.
Key Highlights
Mortality rate of AMI can reach up to 70% due to late diagnosis and intestinal infarction.
Computed tomography angiography is the gold standard for rapid and accurate diagnosis.
Early revascularization followed by damage control surgery and second-look operations are recommended surgical approaches.
Guideline-Based Recommendations
Diagnosis
Use computed tomography angiography for rapid and accurate confirmation of AMI.
Complement imaging with serological parameters such as leukocyte count, pH, and lactate, recognizing their limited sensitivity and specificity.
Management
Emergency surgery with early revascularization of mesenteric circulation.
Abdominal surgery for resection of infarcted intestinal segments.
Adopt damage control surgery principles and plan for second-look operations for definitive therapy.
Empirical antibiotic treatment, primarily penicillin with β-lactamase inhibitors, initiated immediately after diagnosis.
Monitoring & Follow-up
Monitor arterial serum lactate levels, with hyperlactatemia defined as ≥1.7 mmol/l.
Assess leukocyte counts (>10,000/µl indicates leukocytosis) and procalcitonin levels (>0.05 ng/ml considered elevated).
Track time intervals from hospital admission to CT and surgery to reduce delays.
Risks
Delayed diagnosis leading to intestinal necrosis and high mortality.
Longer time intervals between CT diagnosis and surgery increase risk of poor outcomes.
Comorbidities such as arterial hypertension and cardiac diseases increase risk.
Patient & Prescribing Data
Patients undergoing emergency surgery for intraoperatively verified acute mesenteric ischemia.
72% received empirical therapeutic antibiotics preoperatively, mostly penicillin with β-lactamase inhibitors; 23% did not receive preoperative antibiotics.
Clinical Best Practices
Prioritize rapid CT angiography for suspected AMI to confirm diagnosis.
Initiate early surgical intervention focusing on revascularization and resection of necrotic bowel.
Employ damage control surgery with planned second-look operations to optimize outcomes.
Administer empirical antibiotic therapy promptly after diagnosis.
Recognize and manage comorbidities, especially cardiovascular diseases, to improve prognosis.
Minimize delays between diagnosis and surgery, especially in transferred patients.
