Case Report

Unloading of Right Ventricle and Clinical Improvement after Ultrasound-Accelerated Thrombolysis in Patients with Submassive Pulmonary Embolism

Table 1

Summary of the patients’ data.

Patient 1Patient 2Patient 3Patient 4Patient 5

Presenting symptomsDyspneaSyncopeDyspneaDyspneaDyspnea

Source of thrombusDVTDVTDVTUnknownUnknown

Pro-BNP (pg/mL)685314911937511603

Troponins (ng/mL)1.090.020.020.020.02

D-Dimer (ng/mL)40605000N/AN/A2072

CT-scan findingsRight middle and lower lobe emboliSaddle emboliBilateral emboli within main pulmonary arteriesBilateral emboli within main pulmonary arteriesSaddle emboli

Echocardiogram (RVSP in mmHg)Hypokinetic RV enlargement (75), RV/LV > 1 Markedly dilated and hypokinetic RV (70), RV/LV > 1RV/LV > 1, severe pulmonary hypertension (73), and hypokinetic RVRight ventricular strain, straightening of the septum (57), RV/LV > 1Hypokinesia of right ventricular free wall (60), RV/LV > 1

Alteplase amount (per PA)121013126

Follow-up echocardiogram (RVSP in mmHg) Improved function of the right ventricle (50), RV/LV < 1Mild RV dyskinesia (62), RV/LV < 1No RV strain or pulmonary hypertension (35), RV/LV < 1Mildly depressed RV function (40),
RV/LV < 1
Resolution of RV hypokinesia (45), RV/LV < 1

Presenting symptoms at the time of dischargeResolvedResolvedResolvedResolvedResolved

DVT = deep vein thrombosis; BNP = brain-natriuretic peptide; sPAP = systolic pulmonary artery pressure during right heart catheterization; RV = right ventricle; LV = left ventricle; PA = pulmonary artery; RVSP = right ventricular systolic pressure.