Lung biopsy with frozen section as a diagnostic aid in patients with congenital heart defects

摘要: Abstract In eight patients with congenital heart defects and equivocal preoperative hemodynamic data, lung biopsy frozen section was performed quantitative morphometric analysis carried out to help select a palliative or corrective surgical procedure. During catheterization it had been possible in only six of the enter pulmonary artery obtain pressure measurements; four moderate severe elevation vascular resistance whereas other two mild arterial pressure, but they were being considered for Fontan The tissue taken inflated fixed hot glutaraldehyde. From cryostat sections concentration assessed relative alveolar concentration, degree muscularity by wall thickness extension muscle; more advanced Heath-Edwards changes also evaluated. On basis morphologic assessment, underwent surgery Postoperative data available who revealed either significant reduction return normal level no change has occurred one patient studied Assessment development structure on proved helpful deciding between