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INTERNATIONAL ANGIOLOGY

A Journal on Angiology


Official Journal of the International Union of Angiology, the International Union of Phlebology and the Central European Vascular Forum
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International Angiology 2017 October;36(5):428-37

DOI: 10.23736/S0392-9590.17.03775-0

Copyright © 2017 EDIZIONI MINERVA MEDICA

language: English

Thrombus resolution and right ventricular functional recovery using ultrasound-accelerated thrombolysis in acute massive and submassive pulmonary embolism

Evren OZCINAR , Mehmet CAKICI, Nur DIKMEN YAMAN, Cagdas BARAN, Anar ALIYEV, Bahadir INAN, Serkan DURDU, Ahmet R. AKAR, Mustafa SIRLAK

Department of Cardiovascular Surgery, Heart Center, Cebeci Hospitals, Ankara University School of Medicine, Ankara, Turkey


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BACKGROUND: This study aims to evaluate the efficacy and safety of ultrasound-accelerated catheter-directed thrombolysis (UACDT) in the treatment of massive and submassive pulmonary embolism (PE).
METHODS: We conducted a prospective, observational cohort study of consequtive patients with massive or submassive PE treated with low-dose UACDT using EKOS EkoSonic® system at single center from May 2014 until April 2015. Overall, thirty-eight patients (median age, 64.5 years) were included. The primary safety outcomes were change in right ventricular (RV) to left ventricular (LV) diameter ratio within 24 hours of procedure initiation, at 1- and 6-month follow-up and major bleeding within 96 hours of the procedure initiation. BNP, troponin and D-dimer levels were also measured.
RESULTS: The ultrasound-accelerated thrombolytic catheters were bilaterally placed in 25 (65.8%) patients. The median tissue plasminogen activator (tPA) dose for all patients in our study was 21.0 mg and the median infusion time was 15 hours. Measurements before and after treatment showed a decrease in pulmonary artery pressure. The median value of RV/LV diameter ratio decreased from 0.9 (0.7-1.1) at baseline to 0.7 (0-0.97) at 6-month follow-up (P=0.001) and pulmonary artery pressure from 61.4 ±16.7 to 37.2±9.1 mmHg (P=0.001). The median BNP level at baseline was 169 (29-721) pg/mL and 45.5 (0-328) pg/mL at 6 month follow-up (P=0.001). Of 38 patients with PE, one had intracranial hemorrage, one gastrointestinal bleeding and two developed puncture site bleeding.
CONCLUSIONS: This prospective study provides alternative treatment option and an addition to the treatment algorithm for the management of pulmonary embolism.


KEY WORDS: Pulmonary embolism - Mechanical thrombolysis - Ventricular function, right

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Publication History

Issue published online: July 18, 2017
Article first published online: February 15, 2017
Manuscript accepted: February 4, 2017
Manuscript received: September 29, 2016

Cite this article as

Ozcinar E, Cakici M, Dikmen Yaman N, Baran C, Aliyev A, Inan B, et al. Thrombus resolution and right ventricular functional recovery using ultrasound-accelerated thrombolysis in acute massive and submassive pulmonary embolism. Int Angiol 2017;36:428-37. DOI: 10.23736/S0392-9590.17.03775-0

Corresponding author e-mail

evrenozcinar@gmail.com