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Active Drainage of Cardiac Lymph in Relation to Reduction in Size of Myocardial Infarction: - An Experimental Study

Second Department of Surgery, Kagoshima University Faculty of Medicine, Kagoshima, Japan

Kagemitsu Uehara

Second Department of Surgery, Kagoshima University Faculty of Medicine, Kagoshima, Japan

Shigeru Fukuda

Second Department of Surgery, Kagoshima University Faculty of Medicine, Kagoshima, Japan

Koji Takenaka

Second Department of Surgery, Kagoshima University Faculty of Medicine, Kagoshima, Japan

Masaaki Koga

Second Department of Surgery, Kagoshima University Faculty of Medicine, Kagoshima, Japan

Active drainage of cardiac lymph using hyaluronidase was attempted in dogs. The results were satisfactory and the ischemic myocardium was salvaged. The infract risk area (I/R) ratio decreased after drainage.

Regional myocardial ischemia and infarction were provided by means of ligature of the left coronary artery for 120 and 240 minutes respectively. Cardiac lymph was collected by conventional procedures. Enzymes released from the myocardium increased significantly in the cardiac lymph. The volume of cardiac lymph gradually increased after ligature of the coronary artery. Administration of hyaluronidase further increased the cardiac lymph flow and significantly decreased the I/R ratio as determined by triphenyl tetrazolium chloride (TTC) and methylene blue staining. Drainage of the cardiac lymph salvaged the ischemic myocardium. Reduction of interstitial edema and augmentation of cardiac lymph flow with the hyaluronidase prevented the development of the infarction. This is the first documentation of the effect of active drainage of cardiac iymph on the development of infarction through observation of the I/R ratio.

Angiology, Vol. 41, No. 12, 1029-1036 (1990)
DOI: 10.1177/000331979004101202


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