RESUMO
Deep-seated intramuscular lipomas are rare, and most exhibit an infiltrating behavior. This study reports serial radiographs of a lipoma in chest wall muscles which penetrated the intercostal muscle for a 6-year period. Although this lipoma did not involve the parietal pleura, it compressed lung. To the authors' knowledge, the present study is the first report to show the growth of a deep-seated chest wall lipoma into the thoracic cavity through serial radiographs. We consider the surgical treatment is needed before deep-seated intramuscular chest wall lipoma compress intrathoracic structures.
RESUMO
BACKGROUND: Bioprostheses for cardiovascular surgery have limitations in their use following as calicification. α-galactosidase epitope is known as a stimulant of immune response and then shows a progressing calcification. The objective of this study was to evaluate histologic characteristics and mechanical properties of decellularization and treated with α-galactosidase. MATERIALS AND METHODS: BOVINE PERICARDIAL TISSUES WERE ALLOCATED INTO THREE GROUPS: fixation only with glutaraldehyde, decellularization with sodium dodesyl sulfate and decellularization plus treatment with α-galactosidase. We confirmed immunohistological characteristics and mechanical properties as fatigue test, permeability test, compliance test, tensile strength (strain) test and thermal stability test. RESULTS: Decellularization and elimination of α-gal were confirmed through immunohistologic findings. Decellularization had decreased mechanical properties compared to fixation only group in permeability (before fatigue test p=0.02, after fatigue test p=0.034), compliance (after fatigue test p=0.041), and tensile strength test (p=0.00). The group of decellularization plus treatment with α-galactosidase had less desirable mechanical properties than the group of decellularization in concerns of permeability (before fatigue test p=0.043) and strain test (p=0.001). CONCLUSION: Favorable decellularization and elimination of α-gal were obtained in this study through immunohistologic findings. However, those treatment including decellularization and elimination of α-gal implied the decreased mechanical properties in specific ways. We need more study to complete appropriate ioprosthesis with decellularization and elimination of α-gal including favorable mechanical properties too.
RESUMO
A seventeen-month-old male baby, who had received conventional biventricular repair for congenitally corrected transposition of the great arteries, underwent excision of supratricuspid ring. Although tricuspid valve annulus was marginally small on direct inspection in the operating theater, circumferential excision of supratricuspid ring alone completely relieved the right ventricular inflow obstruction.
RESUMO
Implantable cardioverter defibrillator (ICD) can be a crucial therapeutic modality for pediatric patients with congenital heart disease, Brugada syndrome, long QT syndrome and cardiomyopathy. Because transvenous implantation of ICD is mostly unfeasible for pediatric patients due to anatomical and technical limitations, epicardial patch type or subcutaneous type ICD have been used. Implantation of these alternative ICDs, however, was reported to be frequently associated with significant complications. We report a case of successful intrapericardial implantation of a single coil-type ICD through the transverse sinus in a 27 month-old child weighing lesser than 10 kg, and it was inferred from this experience that this alternative technique may decrease complications and morbidities after ICD implantation in children.
