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Perioperative Outcomes of Thrombectomy Patients Using Venovenous Bypass and Suction Filtration With General Anesthesia

Objective

AngioVac (Angiodynamics, Latham, NY) is a novel drainage system that offers a less-invasive approach compared with open surgical thromboembolectomy to remove intracardiac and intravascular thrombotic and embolic material. For this study, the authors’ single-center experience with patients undergoing thromboembolectomy using the AngioVac system was reviewed retrospectively to evaluate anesthetic management and postoperative complications.

Design

Retrospective, observational study.

Setting

Single institution, quaternary care hospital.

Participants

The study comprised 20 consecutive patients whose treatment included the AngioVac between January 2016 and November 2019.

Interventions

None.

Measurements and Main Results

Twenty patients underwent AngioVac suction filtration. The mean age was 56 years, and women comprised 35% of the patient cohort. Indications for AngioVac suction filtration included deep venous thrombosis involving the inferior vena cava (n = 12 [60%]), right atrial mass/thrombus (n = 11 [55%]), right ventricular mass/thrombus (n = 3 [15%]), and pulmonary embolism(n = 2 [10%]). All patients required vasopressor support, and nine patients (45%) required blood transfusion during the procedure. There was no intraoperative death or cardiac arrest associated with the procedure. The 30-day mortality was zero, and in-hospital mortality was 5% (1/20). Significant postoperative complications occurred in 11/20 patients (55%). Postoperative left ventricular dysfunction (36% v 0%; p < 0.05), preoperative shock requiring vasopressors (36% v 0%; p < 0.05), postoperative blood transfusion (100% v 56%; p < 0.05), and having undergone recent surgery (64% v 11%; p < 0.05) were associated with increased odds of experiencing postoperative complications.

Conclusions

The rate of intraoperative complication during AngioVac suction filtration is low, but vasopressors and blood transfusions often are required. Patients at increased risk of developing postoperative complications potentially can be identified as having undergone recent surgery, experiencing preoperative shock requiring vasopressors or postoperative left ventricular dysfunction, and requiring postoperative blood transfusion.


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