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Introduction: The autologous pericardium, treated or fresh, is used in reconstructive cardiovascular surgery. We aimed to describe the features of fresh pericardium utilized in right ventricular outflow tract (RVOT) reconstruction, years after the initial surgery. Methods: This cross-sectional study was performed on 72 patients (65.3% male, mean age =18.68 ± 9.63 y) with a history of RVOT reconstruction with the fresh autologous pericardium who underwent reoperation. During the surgery, a 1 × 1 cm sample was cut from the previous pericardial patch, and hematoxylin and eosin (H & E), Masson's trichrome, and immunohistochemistry (IHC) staining was conducted. All the stained slides were evaluated,and the descriptive results were explained. Results: The mean follow-up duration was 13.48 ± 7.38 years. In preoperative evaluations,53 (73.6%) patients exhibited no RVOT dilatation, 17 (23.6%) showed mild RVOT dilatation,and 2 (2.8%) had RVOT aneurysms. The H & E staining revealed no calcification in 80.55%(58/72), mild calcification in 9.72% (7/72), and moderate calcification in 9.72% (7/72) of the total samples. None of the specimens demonstrated a marked calcification. All the samples were positive for CD31, CD34, smooth muscle alpha-actin, and von Willebrand factor in IHC. In Masson's trichrome staining, on average, 64.74% (±18.61) of the tissue sections contained collagen fibers. Conclusion: The fresh autologous pericardium, utilized for RVOT reconstruction, showed viability, growth potential, positivity for endothelial cell markers, vascular differentiation,insignificant calcification, and no stenosis at long-term follow-up. We would, therefore, suggest it as a suitable choice for such reconstructive operations. Moreover, its usage during total correction of tetralogy of Fallot could be safe, feasible, and durable.
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INTRODUCTION: Thoracic aortic aneurysm (TAA) is a cardiovascular disorder, associated with high rates of mortality and morbidity. Here, we report a case of massive hemoptysis in a patient with TAA. PRESENTATION OF CASE: A 49-year-old man presented with massive hemoptysis and true aneurysm of the aortic arch from the origin of the left common carotid artery to the first segment of the descending aorta. We adopted hybrid method for TAA repair. The patient remained in good condition after hybrid management. DISCUSSION: Although most cases of TAA are asymptomatic, it can present with a wide range of symptoms and complications. Chest pain is the most important symptom of TAA, and its sudden occurrence is a sign of rapid aneurysm expansion, dissection, or rupture. This was a rare case of TAA, as hemoptysis is not a common symptom of TAA. CONCLUSION: This rare case was managed using the hybrid method which resulted in resolution of hemoptysis without any complications.