# Simple and secure thrombectomy without circulatory arrest for acute pulmonary embolism

## TL;DR

A new surgical method for treating severe blood clots in the lungs is introduced, using bypass and cardiac arrest to safely remove clots.

## Contribution

A novel thrombectomy method using cardiopulmonary bypass and cardiac arrest is introduced for treating massive pulmonary embolism.

## Key findings

- Seven consecutive cases of massive PE were successfully treated with the new surgical method.
- The procedure allows clear visualization and removal of peripheral thrombus up to the second branch of the pulmonary artery.
- The method prevents right ventricular failure by enabling precise thrombus removal.

## Abstract

Surgical pulmonary artery thrombectomy is a well-established emergency treatment for massive pulmonary embolism (PE) in which fibrinolysis or thrombolysis are not effective. However, surgery for massive PE that requires peripheral pulmonary artery thrombus removal remains challenging. We established a simple and secure pulmonary artery thrombectomy method using cardiopulmonary bypass and cardiac arrest. In this procedure, the surgical assistant arm, typically used for coronary artery bypass grafting, is used to obtain a feasible working space during thrombectomy.

We present seven consecutive massive PE cases that were treated with the present surgical method and successfully weaned from cardiopulmonary bypass or extracorporeal membrane oxygenation postoperatively.

This procedure can be used to prevent right ventricular failure after surgery as surgeons can remove the peripheral thrombus with clear vision up to the second branch of the pulmonary artery.