Effect of Endocardial Incisions on Myocardial Blood Flow

Lary, Banning G.

doi:10.1001/archsurg.1963.01310150060014

Cited by 8 publications

(1 citation statement)

References 11 publications

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“…It is, therefore, not surprising that experiments have been performed to divert blood directly from the left ventricular cavity into the ischaemic portion of the left ventricle. Attempts to establish communications between the left ventricular cavity and the myocardium have been made by such techniques as transmyocardial puncture (Lary, 1963;Sen, Udwadia, Kinare, and Parulkar, 1965;Sen et al, 1968;Wakabayashi, Little, and Conolly, 1967;White and Hershey, 1968;Khazei, Kime, Papadopoulous, and Cowley, 1968;Kuzela and Miller, 1969;Anabtawi, Reigler, and Ellison, 1969), the insertion of grafts between the myocardium and the left ventricular cavity (Goldman et al, 1956;Massimo and Boffi, 1957), the cutting or punching of the endocardium (Lary, 1963;Berger, Robbins, and Rodriguez, 1964;Vineberg, Baichwal, and Myers, 1965), or the establishment of a communication between a coronary artery peripheral to an occlusion and the left ventricular cavity (Lary, Camelo, Sherman, and Noto, 1969;Munro and Allen, 1969). According to Sen et al (1965), the myocardium of a reptilian heart receives blood mainly from the left ventricular cavity; they considered this an argument for the feasi-lPresent address: Inttrni Klinika, Orlicka Notlina 1057, Hradec KrAlovd, C.S.S.R.…”

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confidence: 99%

Effects of transmyocardial punctures on left ventricular performance after coronary occlusion in the acute experiment

Bëlobrádek¹,

Meer²,

Reneman³

et al. 1972

Thorax

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The results of multiple transmyocardial punctures were studied in 12 dogs in which ligation of the left descending coronary artery had been performed. Instead of improvement, deterioration in the electrocardiogram, paradoxical movement, left ventricular pressure, left ventricular dp/dt max, and mean aortic flow were observed. These results are in contrast to the acute effects observed by Sen et al. (1965, 1968) but do not exclude the possibility of beneficial long-term effects.In coronary insufficiency, the tantalizing situation is that the left ventricular wall is threatened by a lack of oxygen while it encloses an abundant amount of oxygenated blood. It is, therefore, not surprising that experiments have been performed to divert blood directly from the left ventricular cavity into the ischaemic portion of the left ventricle. Attempts to establish communications between the left ventricular cavity and the myocardium have been made by such techniques as transmyocardial puncture (Lary,

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confidence: 99%