Effect of Percutaneous Suction Thromboembolectomy on Improved Right Ventricular Function

A Proposed Approach for the Management of Clot-in-Transit

Clot-in-transit (CIT) is defined as a mobile echogenic material in the right atrium or ventricle as observed on ultrasound. A right heart free-floating thrombus is unusual when there is no structural disease of the heart or atrial fibrillation. Cardiopulmonary collapse and quick death can come from CIT, which occurs when a blood clot moves from the heart to the lungs. There are some clinical case reports of a large volume thrombus that was freely floating in the right heart in an asymptomatic patient, and the best therapeutic options are uncertain. Although several trials have been conducted on the treatment of CIT, clinical judgment is still used to determine the best treatment for right heart thrombus (RHT), especially when associated with pulmonary embolism (PE). In this review article, we discuss various diagnostic modalities and treatment options for this rare malady. We studied in detail their clinical impact on patients according to past research studies.

Mechanical Circulatory Support in Right Ventricular Failure

Right ventricular dysfunction presents unique challenges in patients with cardiopulmonary disease. When optimal medical therapy fails, mechanical circulatory support is considered. Devices can by classified according to whether they are deployed percutaneously or surgically, whether the pump is axial or centrifugal, whether the right ventricle is bypassed directly or indirectly, and whether the support is short term or long term. Each device has advantages and disadvantages. Acute mechanical circulatory support is a suitable temporizing strategy in advanced heart failure. Future research in right ventricular mechanical circulatory support will optimize device management, refine patient selection, and ultimately improve clinical outcomes.

Catheter-based Therapy for Massive Pulmonary Embolism in an Elderly Woman with Chest Pain and Dyspnea: Case Report

An 80-year-old woman presented with chest pain and dyspnea. The electrocardiogram (ECG) showed a known chronic complete left bundle branch block and elevated levels of high-sensitivity cardiac Troponin T. The first diagnosis was acute coronary syndrome, but a few hours later she developed shock and syncope; after resuscitation a coronary angiography was performed but it did not show any acute coronary obstruction. The echocardiogram showed McConnell's sign suggesting a massive pulmonary embolism; the pulmonary angiography showed large thrombi in both branches of pulmonary artery, so a catheter-based treatment was performed with thromboaspiration and rt-PA administration, and a significant improvement of blood pressure, clinical condition and right ventricle function was observed. In spite of bleeding at the puncture sites (femoral artery and vein), controlled by local compression, catheter-based therapy in massive pulmonary embolism was associated with survival and satisfactory outcome. A combined fragmentation/thromboaspiration and catheter-directed fibrinolysis strategy may be useful to reduce the embolic load, improve RV function, and reduce mortality.