Epidemiology, risk and prognostic factors in mesenteric venous thrombosis
S Acosta1, A Alhadad, P Svensson
1Vascular Centre, Malmö University Hospital, Malmö, Sweden. stefan.acosta@telia.com
Background:
Epidemiological reports on risk and prognostic factors in patients with mesenteric venous thrombosis (MVT) are scarce.
Methods:
Patients with MVT were identified through the inpatient and autopsy registry between 2000 and 2006 at Malmö University Hospital.
Results:
Fifty-one patients had MVT, diagnosed at autopsy in six. The highest incidence (11.3 per 100,000 person-years) was in the age category 70-79 years. Activated protein C resistance was present in 13 of 29 patients tested. D-dimer at admission was raised in all five patients tested. Multidetector row computed tomography (CT) in the portal venous phase was diagnostic in all 20 patients investigated, of whom 19 were managed conservatively. The median length of resected bowel in 12 patients who had surgery was 0.6 (range 0.1-2.2) m. The overall 30-day mortality rate was 20 percent; intestinal infarction (P = 0.046), treatment on a non-surgical ward (P = 0.001) and CT not done (P = 0.022) were associated with increased mortality. Cancer was independently associated with long-term mortality: hazard ratio 4.03, 95 percent confidence interval 1.03 to 15.85; P = 0.046.
Conclusion:
Portal venous phase CT appeared sensitive in diagnosing MVT. As activated protein C resistance was a strong risk factor, lifelong anticoagulation should be considered.
Insights
Mesenteric venous thrombosis (MVT) is rare, with highest incidence in older adults. Activated protein C resistance is a key risk factor, suggesting lifelong anticoagulation may be beneficial for MVT patients.
Area of Science:
- Vascular Surgery
- Gastroenterology
- Hematology
Background:
- Epidemiological data on mesenteric venous thrombosis (MVT) risk and prognostic factors are limited.
- Mesenteric venous thrombosis (MVT) affects predominantly older individuals, with the highest incidence observed in the 70-79 age group.
Purpose of the Study:
- To investigate the incidence, risk factors, diagnostic methods, and outcomes of mesenteric venous thrombosis (MVT).
Main Methods:
- Retrospective analysis of 51 patients diagnosed with mesenteric venous thrombosis (MVT) between 2000 and 2006.
- Utilized inpatient and autopsy registries; diagnostic modalities included multidetector row computed tomography (CT) and laboratory tests.
- Evaluated associations between clinical factors, diagnostic methods, and mortality.
Main Results:
- The incidence of MVT was 11.3 per 100,000 person-years in those aged 70-79.
- Activated protein C resistance was identified in 13/29 patients tested; D-dimer was elevated in all tested patients.
- Multidetector row CT in the portal venous phase was highly sensitive for MVT diagnosis; 30-day mortality was 20%, associated with intestinal infarction and lack of CT.
- Cancer independently predicted long-term mortality.
Conclusions:
- Portal venous phase CT is a sensitive diagnostic tool for mesenteric venous thrombosis (MVT).
- Activated protein C resistance is a significant risk factor, warranting consideration for lifelong anticoagulation therapy in MVT patients.
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