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J A Solis Herruzo

Publications and source records attributed to J A Solis Herruzo.

15 recordsLinked to original sources

Plasma arginine vasopressin concentration during laparoscopy.

Plasma arginine vasopressin concentration (pAVP) was determined in 47 patients during the insufflation stage of laparoscopy. Laparoscopy was performed under local anesthesia in 39 patients, and under general anesthesia in 8. Pneumoperitoneum was induced with 3-4 1 nitrous oxide to a maximum intra-abdominal pressure of 10 mm Hg. Induction of pneumoperitoneum resulted in a prompt and significant increase in pAVP in every case. In 34% of cases, pAVP increased two- to fivefold as compared with preinduction levels; in 44.7% of cases, elevations of more than fivefold were seen. Increased arginine vasopressin secretion was not related to underlying liver disease, degree of anxiety, changes in blood pressure, heart rate, pCO2, pO2, serum bicarbonate or plasma osmolality. Elevated pAVP was associated with a significant increase in right atrial pressure. In conclusion, abdominal distension during laparoscopy was accompanied by an increase in pAVP. It seems likely that arginine vasopressin response could be due to a decrease in the left atrial transmural pressure gradient.

Adult↗

Nodular regenerative hyperplasia of the liver in renal transplantation.

In our series of RT three cases of diffuse NRH of the liver were found. This rare entity is characterized by nodules of regenerative hepatocytes distributed throughout the liver without fibrosis. The incidence was 12.5% and probably is underestimated. Clinically, hepatomegaly, moderate thrombopenia and an elevation of GGT were present, but no case was previously suspected. NRH can lead to PH, and we should think of this entity in the differential diagnosis of PH following RT.

Adult↗

Laparoscopic and histological problems in the diagnosis of nodular regenerative hyperplasia of the liver.

We describe the laparoscopic findings in 5 patients with nodular regenerative hyperplasia of the liver (NRH). A nodular liver surface and signs of portal hypertension were observed, which in all cases gave rise to the laparoscopic diagnosis of liver cirrhosis. Multiple and single liver biopsies in 3 and 2 cases respectively, permitted the definitive diagnosis of the NRH lesion. The laparoscopic picture of NRH is indistinguishable from that of cirrhosis, and for this reason it is advisable to carry out liver biopsy even in cases where cirrhosis seems unquestionable.

Adult↗

Transduodenopancreatic interposition mesocaval shunt using an internal jugular vein autograft.

In 26 interposition mesocaval shunts using an internal jugular vein autograft which has been performed since 1970, four patients had important abnormalities in the superior mesenteric vein, making impossible the usual subduodenal position of the jugular vein graft. In these four patients, a small pancreatectomy was performed between the transverse portion of the duodenum and the right aspect of the superior mesenteric vein, placing the interposition mesocaval shunt in a transduodenopancreatic position. No patient has had any bleeding after the operation nor have esophageal varices been found at the time of the last examination. During this period, all patients showed a remarkable tolerance to proteins, so that no patient has been on a low protein diet.

Esophageal and Gastric Varices↗