Studies on changes in hilar splenic vein-ear circulation after obliteration of gastroesophageal verices.

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The changes in hilar splenic vein-ear circulation (S.V-E) was observed after obliteration of gastroesophageal varices in 11 cases with rupture of esophageal varices.<BR>S.V-E time and concentration change at ear was measured by a bolus injection of indocyanine green (ICG) through hilar splenic vein and the time and concentration was measured by a dye densitogram taken from an ear-piece. The time till the appearance of ICG (AT), the time from AT to the maximum concentration (PT), the sum of AT and PT (CT) and the maximum concentration of the dye at the ear-piece were taken as the indicators.<BR>The mean AT, PT and CT were significantly prolonged (p<0.01) after obliteration of gastroesophageal varices. In 10 cases hemostases were successful, and in which there were 3 cases who showed prolongations of these three parameters and lower maximum concentrations. In these 3 cases, collateral pathway were obvious only in the vessels which were obliterated. In one case, in which obliteration was not successful, short gastric vein was remainded patent. PT did not change and maximum concentration was increased.<BR>The changes in the dye densitogram seemed to reflect well the occluded state after obliteration of gastroesophageal varices.
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