Search PubMed⌕ Search

Biomedical subjects

C T Dotter

Publications and source records attributed to C T Dotter.

At least 37 records · Page 2Linked to original sources
PubMed1980

Bleeding from esophageal varices exacerbated by splenic arterial-venous fistula: complete transcatheter obliterative therapy.

A cirrhotic patient who had previously undergone both mesocaval shunting and transthoracic esophageal and gastric devascularization with splenectomy (Sugiura procedure) presented with recurring intractable variceal hemorrhage. Diagnostic visceral angiography demonstrated a large splenic arterial-venous fistula and gastroesophageal varices. Transarterial occlusion of the fistula and transheptic obliteration of the varices successfully done at one sitting prevented further bleeding. Follow-up angiography nine months later revealed persistent occlusion of the previous fistula and no evidence of esophageal varices.

Arteriovenous Fistula↗
PubMed1980

Retrograde pancreatic venography: autopsy study.

Changes of the venous system in various pancreatic diseases were evaluated by retrograde pancreatic venographic studies done on 110 autopsy specimens of the pancreas. Fifty-one normal specimens exhibited well filled, regularly arranged veins. Postmortem autolysis (ten specimens) caused penetration of contrast medium into the parenchyma. Acute pancreatitis (six specimens) was associated with hypervascularity and venous irregularity. Chronic pancreatitis was associated with unevenly distributed venous deformities. Pseudocysts caused avascular foci which displaced adjacent vessels. Seven pancreatic cancers produced irregular encasement and occlusion of pancreatic and peripancreatic veins with thrombosis of major portal trunks-changes differing substantially from those caused by other diseases. Periancreatic cancer invading the pancreas caused encasement of superficial and occasionally deep pancreatic vessels. Acute leukemic infiltration demonstrated extreme deformity with complete structural disorder of intrapancreatic branches. Retrograde pancreatic venography, if used clinically, would enable radiographic diagnosis of the most common diseases of the pancrease.

Acute Disease↗
PubMed1980

Transluminal angioplasty: a long view.

The history of percutaneous transluminal angioplasty is briefly reviewed, from its initial, inadvertent use in 1963 to its current extensive applications. Transluminal angioplasty is equally as effective as surgery for stenotic lesions, and has the advantages of being safer and less expensive for the patient.

Angiography↗
PubMed1980

Percutaneous intravenous biopsy.

Simple techniques for percutaneous intravenous biopsy were used in 3 patients to obtain histopathologic diagnoses of thrombosis of the inferior vena cava and tumors invading renal veins. Techniques, risks and diagnostic sensitivity of percutaneous intravenous-biopsy are discussed.

Adult↗
PubMed1979

Fine-needle cholangiography (FNC) in the nonjaundiced patient.

Fine-needle cholangiography (FNC) in the jaundiced patient is well established, but its role in the diagnostic work-up of nonjaundiced patients has not been emphasized. We present 44 consecutive nonjaundiced patients with a serum bilirubin level of 2.4 mg% of less who underwent FNC. The indications were recurrent RUQ pain (77%), painless cholestasis (16%), and relapsing pancreatitis (7%). In all but two patients, one or more inconclusive techniques [oral cholecystography, ultrasonography, intravenous cholangiography, or endoscopic retrograde cholangiography (ERC)] had been employed prior to FNC. Biliary tract opacification was successful in 35 of 44 (80%). In nine of 35 (26%) choledocholithiasis and/or cholelithiasis was present. In four (11%) a significant extrahepatic biliary stricture was noted. More than five needle insertions were often required for successful entry. No complications occurred. Indications for FNC should be extended to include nonjaundiced patients with RUQ pain or painless cholestasis in whom oral cholecystography, ultrasonography, and intravenous cholangiography have been of no diagnostic help. The relative ease and low cost of FNC make it preferable to ERC in these patients.

Adolescent↗
PubMed1979

Percutaneous transhepatic gallstone removal by needle tract.

A percutaneous transhepatic cholangiogram tract was used to visualize a large stone in the common duct; following the tract's dilation, the stone was crushed and partially removed. Fragments were flushed and also passed spontaneously into the duodenum. The approach described offers a feasible alternative to surgery.

Cholangiography↗
PubMed1978

Fluoroscopic guidance in femoral artery puncture.

Analysis of 100 femoral arteriograms demonstrated a consistent relationship between the course of the femoral artery and the femoral head. Fluoroscopic guidance can be of value in femoral puncture when the arterial pulse is diminished or obscured, for training purposes, and for analysis and correction of missed punctures.

Adult↗
PubMed1978

Percutaneous transhepatic obliteration of gastroesophageal varices: some technical aspects.

Two cases of bleeding from gastroesophageal varices treated by variceal obliteration illustrate multiple routes of variceal supply, and alert embolizing angiographers to the presence of spontaneous portosystemic shunts which should be kept open. In one case, variceal obliteration required embolization of the left gastric vein and a transhepatic collateral originating from the left hepatic portal branch and contributing substantially to variceal filling. A second patient with a relatively large spontaneous splenorenal shunt had recurrent variceal bleeding two months after a successful embolization of the coronary vein and a short gastric vein. A repeat study revealed the recurrent varices were supplied by enlarged right gastric and gastroepiploic veins. Superior mesenteric venography was necessary for their visualization.

Embolization, Therapeutic↗