How should I treat an accidentally misplaced 8 Fr drainage catheter in the right ventricle?

A 76-year-old male with a previous MI, hypertension, hyperlipidaemia and asthma was admitted with atypical chest pain. At the admission cTnT was 2,096 ng/L and ECG without changes and 10 mm of symmetrical pericardial effusion was revealed at echocardiography. Thoracic CT excluded aortic dissection and also confirmed the pericardial fluid (Figure Twenty-four hours later echo was repeated due to low blood pressure and shortness of breath. It showed rapid progression of the pericardial effusion adding up to 25 mm in the pericardial sac with a mild systolic compression of the right atrium and right ventricle. Pericardiocentesis and coronary angiography followed immediately. Fluoroscopy-guided and echo-assisted drainage was performed from the subxyphoideal approach (Flexima 8 Fr; Boston Scientific, Natick, MA, USA). During the puncture and guidewire insertion no changes were detected on ECG. The procedure was continued with placement of the pigtail drainage catheter. Contrast injection and saline test were performed and demonstrated a misplaced intracavital position of the drainage catheter within the right ventricle.