ABSTRACT
BACKGROUND: True ventricular aneurysm in the inferior location is rare. A 54-year-old male was evaluated for recurrent heart failure. METHOD: The echocardiogram showed large aneurysm arising from the inferoposterior wall of the left ventricle and severe mitral regurgitation. RESULTS: The coronary angiogram revealed occluded right coronary artery (RCA) in the mid segment. CONCLUSION: The patient underwent aneurysm repair and coronary artery bypass grafting to RCA.
Subject(s)
Heart Aneurysm/surgery , Heart Failure/surgery , Myocardial Infarction/surgery , Combined Modality Therapy , Coronary Angiography , Coronary Artery Bypass , Echocardiography , Echocardiography, Doppler, Color , Heart Aneurysm/diagnosis , Heart Failure/diagnosis , Heart Valve Prosthesis Implantation , Heart Ventricles/surgery , Humans , Male , Middle Aged , Mitral Valve Insufficiency/diagnosis , Mitral Valve Insufficiency/surgery , Myocardial Infarction/diagnosis , Postoperative Complications/diagnosis , Tomography, X-Ray ComputedABSTRACT
Structural, chemical, mechanical and surface changes were studied in expanded polytetrafluroethylene vascular grafts explanted from children undergoing planned surgical management of congenital heart disease. These grafts were implanted when recipients were aged 7 days to 8 years (median--48 weeks) and they had been in circulation for a period of 10-52 months (median--74 weeks). While no chemical changes were observed in the shunt, on average the tensile strength had decreased by 50%, total elongation by 61% and crystallinity by 3%. No salt deposits were observed on the surface of the graft. Soluble and insoluble proteins were bound to the polymer surface, which had made the surface hydrophilic. The external surface roughness had increased by 254.5 and the internal surface roughness by 2.6 times the initial value. The fine polymer structure had become fused and clumped. The fusing of strands on the polymer surface became more pronounced with longer duration of implantation. In one instance of previously documented graft stenosis, the heat capacity was found to be more than that of the unimplanted sample, indicating an increase in crystallinity. A longer period of study with a larger sample size would likely shed more light on the relation between physico-chemical changes and graft stenosis.
Subject(s)
Biocompatible Materials/chemistry , Blood Vessel Prosthesis , Equipment Failure Analysis , Materials Testing , Polytetrafluoroethylene/chemistry , Child, Preschool , Device Removal , Female , Heart Defects, Congenital/surgery , Humans , Infant , Infant, Newborn , Male , Prosthesis DesignABSTRACT
Isolated ventricular non-compaction is a rare type of cardiomyopathy resulting from arrested myocardial development during embryogenesis. This rare entity can be easily diagnosed by characteristic appearance of prominent myocardial trabeculations and deep inter-trabecular spaces. The clinical manifestations include heart failure signs, ventricular arrhythmias, and cardio-embolic events. Although the usual site of involvement is the left ventricle, the right ventricle (RV) can rarely be affected. Here, we report a case of 23-year-old male patient with isolated RV non-compaction.
