Background: Necrotizing pancreatitis (NP) is a severe systemic inflammatory process. We have observed a high incidence of venous thromboembolism (VTE) in NP patients. However, remarkably few data exist to document the true incidence of VTE—including splanchnic vein thrombosis (SVT), extremity deep venous thrombosis (eDVT), and pulmonary embolism (PE)—in NP. Therefore, we sought to determine the incidence and risk factors for VTE in NP patients. Methods: Retrospective review of all NP patients treated at a single academic center between 2005 and 2015. VTE diagnosis was confirmed by ultrasound (US), computed tomography (CT), magnetic resonance imaging (MRI), and/or ventilation/perfusion (V/Q) scan. Descriptive statistics and univariate analysis were applied where appropriate; p value < 0.05 was considered statistically significant. Results: Five hundred and forty-five NP patients (median age 53 years; 65% males) were reviewed. VTE was diagnosed in 312 patients (57%). SVT was found in 50%, eDVT in 16%, and PE in 6%. VTE in multiple sites was found in 22% of patients. VTE was diagnosed a median of 37 days following pancreatitis diagnosis. Seventy-nine percent of patients required at least one surgical procedure over the course of their NP. Patients requiring surgery had a DVT incidence of 58%; however, VTE was diagnosed preoperatively in 63%. Male gender, history of previous DVT, infected necrosis, development of organ failure, and development of respiratory failure were identified as risk factors for VTE (p = 0.001–0.04) by univariate analysis. Conclusions: Venous thromboembolism is extremely common in necrotizing pancreatitis. Regular ultrasound screening may be considered to facilitate early diagnosis in this extremely high-risk population.
- Acute necrotizing pancreatitis
- Deep venous thrombosis
- Venous thromboembolism
- Venous thrombosis
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