title: Intra-operative assessment of biventricular function using trans-esophageal echocardiography pre/post-pulmonary thromboembolectomy in patient with chronic thromboembolic pulmonary hypertension.
abstract: Postoperative studies in patients with chronic thromboembolic pulmonary hypertension (CTPH) have shown that pulmonary thromboembolectomy (PTE) results in a rapid decrease of right ventricular (RV) size, improvement in the RV systolic function and left ventricular (LV) diastolic function. However, the extent to which the biventricular function recovers immediately after embolectomy in post-cardiopulmonary bypass period is not clear. A 45-year-old male patient was operated for retrieval of thrombus from pulmonary trunk and right pulmonary artery. Intraoperative transesophageal echocardiography (TOE) before surgery revealed signs of RV dysfunction and enlargement. The interventricular septum was seen moving paradoxically during end-systole and early-diastole. E/A ratio on transmitral Doppler flow velocity profile was about 0.63 and S/D ratio on pulmonary venous Doppler profile was 2.25, indicative of LV diastolic dysfunction. After weaning the patient from bypass, navigation on TOE showed marginal recovery of the RV systolic function and abatement of septal paradox to some extent. However, significant improvement was observed in the LV diastolic parameter (normal E/A ratio, S/D ratio of 1.08). We conclude that the geometrically altered LV recovers more than the hypertrophied and hypokinetic RV in a patient with CTPH in the post-bypass period.
authors: Department of Anesthesia, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala-695 011, India. shri@sctimst.ac.in
authors: Shrinivas
authors: S
authors: Gadhinglajkar
authors: Rupa
authors: R
authors: Sreedhar
authors: K
authors: K
authors: Jayakumar
authors: Manoranjan
authors: M
authors: Misra
authors: S
authors: S
authors: Ganesh
authors: Varghese
authors: V
authors: Panicker
mesh_terms: D017548:Echocardiography, Transesophageal; D017128:Embolectomy; D006801:Humans; D006976:Hypertension, Pulmonary / Q000000981:diagnostic imaging* / Q000209:etiology; D008297:Male; D008875:Middle Aged; D016343:Monitoring, Intraoperative / Q000379:methods; D011655:Pulmonary Embolism / Q000150:complications / Q000000981:diagnostic imaging*; D012907:Smoking / Q000473:pathology; D016276:Ventricular Function / Q000502:physiology*; D016277:Ventricular Function, Left / Q000502:physiology; D016278:Ventricular Function, Right / Q000502:physiology