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Biomedical subjects

H Atari

Publications and source records attributed to H Atari.

10 recordsLinked to original sources
PubMed1992

Oriental cholangiohepatitis: correlation between portal vein occlusion and hepatic atrophy.

The angiographic features of the hepatic vasculature in patients with oriental cholangiohepatitis and their relationship to liver atrophy remain unclear. We studied 11 patients with oriental cholangiohepatitis to define the spectrum of portal vein, bile duct, and parenchymal involvement by correlating findings on cholangiography, sonography, CT, and angiography. The portal veins appeared normal in five cases, pruned in four, and completely obstructed in two. This spectrum of appearances was found to correlate with the severity of liver atrophy. No massive arterioportal shunting was found in any patients in this series. The two patients with complete obstruction of the portal veins showed no evidence of malignancy at histologic examination of the resected specimen. It is concluded that the degree of portal vein obstruction correlates well with the degree of liver atrophy in patients with oriental cholangiohepatitis and that findings of complete central portal obstruction do not necessarily indicate associated malignancy.

Atrophy↗
PubMed1987

Low-dose particulate polyvinylalcohol embolization in massive small artery intestinal hemorrhage. Experimental and clinical results.

The branches of the superior mesenteric artery were embolized with polyvinylalcohol (PVA) particles 149 to 250 mu (small), 420 to 590 mu (medium), and 590 to 1000 mu (large), respectively, in three groups of dogs. In the small PVA particle group, all three dogs died. In the medium and the large PVA particle groups, nine of the 11 dogs showed no significant ischemic change and the remaining two (one dog in the medium PVA group and one in the large PVA group) had a superficial ulcer. This study suggests that PVA embolization can be performed safely if particles of 420 mu or larger are used. In clinical studies, large PVA particles were used in embolization therapy for massive intestinal hemorrhage from small arteries in five patients. All had the hemorrhage from ulcer disease in the small bowel (four patients) and the ascending colon (one patient). Three patients were completely controlled with no recurrence of hemorrhage. The remaining two experienced rebleeding after embolization. No major complication was found in this series. It is concluded that low-dose large PVA particles are suitable as an embolic material for transcatheter occlusion of small-artery intestinal hemorrhage.

Aged↗
PubMed1978

Diffuse cerebrospinal gliomatosis. Case report.

A case of diffuse cerebrospinal gliomatosis is presented, with widespread involvement of the brain, cranial nerves, and spinal cord. This showed a far more extensive distribution of tumor cells than previously reported cases of gliomatosis cerebri. The clinical picture and oncogenesis of gliomatosis cerebri is briefly discussed.

Brain Neoplasms↗