Key result
Early iliofemoral DVT intervention leaves ~29% with post-thrombotic syndrome linked to worse midterm outcomes.
Why the study?
Post-thrombotic syndrome (PTS) is a potential long-term complication of DVT impacting quality of life, but its incidence, clinical manifestations, and predictors after early intervention require determination.
What are the incidence and predictors of post-thrombotic syndrome in patients with acute lower limb DVT undergoing early intervention?
What are the incidence and predictors of post-thrombotic syndrome in patients with acute lower limb DVT undergoing early intervention?
Nearly 30% of patients develop post-thrombotic syndrome after early intervention for acute iliofemoral DVT, with older age and delayed presentation serving as key predictors.
Answers are grounded in this paper and cite their sources.
Clinicians should temper expectations for symptom relief after early iliofemoral DVT intervention; reinforces low-certainty evidence against routine use for PTS prevention.
Background: Post-thrombotic syndrome (PTS) is a potential long-term complication of deep vein thrombosis (DVT), proven to significantly impact quality of life. This study aims to determine the incidence, clinical manifestations, and predictors of PTS following early intervention for acute lower limb DVT in a single tertiary center. Methods: This retrospective study included patients with acute iliofemoral DVT who underwent thrombectomy and thrombolysis. Patients were categorized based on PTS presence, defined by a five or higher Villalta score. Results: Among 113 patients, 29.2% developed PTS (23.0% mild, 6.2% moderate). At 6 months post-intervention (PI), the PTS group had significantly higher median Villalta scores (9 vs. 3; P < 0.001) and Venous Clinical Severity Scores (6 vs. 3; P < 0.001) than the non-PTS group. The PTS group also showed poorer symptom improvement and occlusion outcomes on imaging ( P < 0.001). PTS predictors included age ≥60 years, symptom onset time ≥8days, and lower limb circumference difference <1.5 cm at 1-month PI. Compared to thrombectomy, thrombolysis was not an independent factor for PTS ( P > 0.05). Conclusions: PTS is common in patients undergoing early intervention for acute DVT via thrombectomy or thrombolysis. Its presence in the midterm period is associated with poorer symptom improvement and occlusion outcomes. The predictors included older age, prolonged pre-intervention symptoms, and poor lower limb circumference improvement. Physicians should monitor midterm PI patients to identify and enhance symptom improvement, especially those with risk factors.
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Long et al. (2024) studied this question. Post-thrombotic syndrome occurred in 29.2% of acute iliofemoral DVT patients after early intervention and was associated with poorer midterm symptom and occlusion outcomes.
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