The Annals of thoracic surgery
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Comparative Study
Flow in coronary bypass conduits on-pump and off-pump.
The purpose of the study was to measure the blood flow in coronary artery bypass grafting conduits on-pump and off-pump and to estimate the total conduit flow. ⋯ There were no major differences in conduit flow on-pump versus off-pump. Conventional coronary artery bypass grafting on-pump may restore up to approximately half of the normal resting coronary artery blood flow (250 mL/min).
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Case Reports
Metachronous and synchronous lung tumors: five malignant lung pathologies in 1 patient during 7 years.
We present the case of a 70-year-old man who previously had a left upper lobectomy for nonsmall cell lung carcinoma that subsequently developed into small cell carcinoma, which was successfully treated, and finally he had a right upper lobectomy that revealed three synchronous lung malignancies. We were unable to find a previous case report with a total of five separate lung malignancies with a combination of metachronous and synchronous tumors. This case demonstrates the importance of screening after the diagnosis and treatment of lung carcinoma.
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Calcifying fibrous pseudotumor is an uncommon benign lesion that has unique histologic features. We report a case of calcifying fibrous pseudotumor of the pleura occurring in a 31-year-old woman. ⋯ The tumor showed dense hyalinized collagenous tissue interspersed with spindle cells, psammomatous calcifications, and a predominantly lymphoplasmocytic infiltrate. Most spindle cells were diffusely positive for vimentin, focally positive for CD34, and negative for desmins, smooth muscle actin, S-100 protein, and anaplastic lymphoma kinase-1.
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Tracheal resection for primary carcinoma may extend survival. We evaluated survival after surgical resection or palliative therapy to identify prognostic factors. ⋯ Locoregional, not distant, disease determines resectability in primary tracheal carcinoma. Resection of trachea or carina is associated with long-term survival superior to palliative therapy, particularly for patients with complete resection, negative airway margins, and ACC.
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Comparative Study
New onset arrhythmias after the extracardiac conduit Fontan operation compared with the intraatrial lateral tunnel procedure: early and midterm results.
Arrhythmias are one of the main causes of postoperative morbidity superseding Fontan operations. Comparative data on the incidence of sinus node dysfunction after the extracardiac Fontan operation (ECFO) and the intraatrial lateral tunnel Fontan operation (LTFO) are very limited and controversial. The aim of this study was to evaluate whether ECFO decreases the risk of postoperative arrhythmias compared with LTFO. ⋯ Our data suggest that ECFO decreases the incidence of postoperative new onset arrhythmias during early and midterm follow-up compared with LTFO.