特発性間質性肺炎を合併した不安定狭心症に対する冠動脈再建術の１治験例

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  • A Case Report of Coronary Artery Bypass Grafting with Idiopathic Interstitial Pneumonia.

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A 72 year-old man underwent coronary angiography (CAG) with a diagnosis of unstable angina pectoris, and 90% stenosis of the LMT was found. Since idiopathic interstitial pneumonia (IIP) had been diagnosed previously, percutaneous transluminal coronary angioplasty (PTCA) was performed. However, his unstable angina recurred after about 2 months restenosis of the LMT to 90% was shown by CAG, and coronary artery bypass grafting (CABG) was performed. In the preoperative chest X-ray, diffuse granular opacities were seen in both lower lungfields, and Velcro rales were heard by ausculation. A spirogram could not be obtained because of his unstable angina, but the PaO2 was a reasonable 70mmHg when breathing room air. In consideration of the age of the patient, a double coronary artery bypass grafting using a saphenous vein graft (SVG) was performed to minimize duration of anesthesia. His PaO2 showed a transient decrease after the end of cardiopulmonary bypass (CPB), but the perioperative hemodynamics and respiratory status were stable and extubation was performed on the 1st postoperative day. No aggravation of his IIP occurred postoperatively and he was discharged on the 29th postoperative day.

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