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Biomedical subjects

F Cornud

Publications and source records attributed to F Cornud.

At least 91 records · Page 5Linked to original sources
PubMed1984

[Real time echographic study of the normal Wirsung duct. Comparison with retrograde catheterization].

An ultrasonogram (US) of the pancreatic duct was performed in 59 patients prior to a retrograde pancreatography (ERCP). In 41 patients with normal ERCP, the pancreatic duct in the body of the pancreas was found to be on US less than 2 mm. The diameter measured on ERCP on the same portion of the pancreas was found to be 2,5 larger. On 18 abnormal ERCP, 3 patients had normal US defined by a pancreatic duct less than 2 mm in internal diameter and a normal pancreatic parenchyma. These 3 patients had mild ductal abnormalities of chronic pancreatitis on ERCP, undetectable by US. These 3 false negative cases give to a normal pancreatic US a negative predictive value of 93%. The injection of 5 normal autopsy pancreas, combined with US of the pancreatic duct, showed that neither the radiological magnification nor the pressure of injection accounted for the discrepancy between US and ERCP in the measurement of the pancreatic duct diameter. It is thought to be due to an underestimation of the internal diameter of the duct which may be related to an apparent thickening of its highly echogenic walls.

Adult↗
PubMed1983

[Pulmonary thromboembolic complications of catheterization using the Swan-Ganz catheter].

Twenty-two adult patients who had required catheterization with a Swan-Ganz catheter and had thrombosis of the internal jugular vein were investigated for pulmonary embolism. In 4 of these, pulmonary embolism was detected by angiography, and 2 patients who died with the catheter in situ had also pulmonary embolism. In 5 out of these 6 patients prophylactic heparin treatment failed to prevent this complication. This study suggests that the Swan-Ganz catheter placement is indicated only when the value of the information to be gained exceeds the potential risk.

Adolescent↗
PubMed1983

Bronchial artery occlusion for severe hemoptysis: use of isobutyl-2 cyanoacrylate.

Isobutyl-2 cyanoacrylate (IBC) was used to embolize the bronchial arteries of 14 patients with severe hemoptysis. The site of bleeding was supplied by a bronchial artery from the aorta in 11 cases and from a right bronchointercostal trunk in three. IBC was injected after previous reduction of the blood flow in the artery by embolization with particles of dura mater. In all cases, bleeding stopped immediately after occlusion and no spinal cord complications were observed. The results indicate that IBC may be a valuable occluding agent in severe hemoptysis, since it produced virtually permanent occlusion of both the distal and proximal parts of the artery. In 13 patients, bleeding did not recur throughout follow-up periods of 2-17 months. In one patient, it recurred 12 months after embolization but stopped after occlusion of another bronchial artery with IBC. It should be noted, however, that immediately after embolization, five patients experienced violent transient retrosternal burning, and one patient experienced dysphagia and fever for 2 days. Since mediastinal ischemia cannot always be avoided, this procedure must be reserved for cases of severe hemoptysis for which surgical treatment is contraindicated.

Adult↗
PubMed1983

[Percutaneous nephrostomy under echographic guidance. Apropos of 31 cases].

31 percutaneous nephrostomies (P.C.N.) were realised under a combination of real time ultrasound and fluoroscopic guidance. No failure in placement of the nephrostomy tube was noted. 13 complications were noted in 9 patients: 3 were major, consisted in 1 severe hemorrhage and 2 septicemia and 10 were minor, mainly caused by secondary displacement of the tube. Three indications of P.C.N. are related to upper urinary tract obstruction: 1) Overdistension and fever or pain associated with poor patient's condition. 2) Short-term obstructions. 3) Diagnosis of the nature or location of the obstruction when other techniques don't provide the solution, and/or evaluation of renal function. The drainage of some ureteral fistules represent the fourth indication. P.C.N. allows ureteral antegrad catheterization and its applications. Results are discussed and present or future applications of interventional uro-radiology are related.

Aged↗
PubMed1983

[Real-time echography of the parathyroid glands].

Real time ultrasonography of the neck, using a sectorial scanner with an ordinary 5 MHz transducer, was performed on 24 patients with hypercalcemia. 21 of them were suffering from primary hyperparathyroidism and 3 from a severe paraneoplasic hypercalcemia. There were 18 true positive, 3 false positive, 1 false negative and 2 true negative. The sensibility and the negative predictive value of the method are 83%. The specificity and the negative predictive value are 95%. The accuracy is 91%. Real time ultrasonography of parathyroid glands is possible with a sectorial scanner using an ordinary 5 MHz transducer and is systematically done, in our institution, before cervicotomy.

Adenoma↗
PubMed1983

[Abdominal echography in the diagnosis and monitoring of retroperitoneal fibrosis. Apropos of 2 cases].

The authors report 2 new cases of unilateral ureteral obstruction due to a retroperitoneal fibrosis diagnosed by ultrasound examination. Retroperitoneal fibrosis presents as a hypo-echogenic, homogeneous mass, anterior to the sacral promontary, extending more or less cranially or caudally around the aorta and the iliac vessels where it gets a circumferential appearance. The complete regression of the mass has been followed by ultrasound on one patient. The authors underline the diagnostic problem posed with the R.P.F. secondary to metastatic neoplasm and discuss the place of ultrasound guided fine needle biopsy performed on one patient for the diagnosis of the affection.

Abdomen↗
PubMed1981

[Subcapsular haematoma of the spleen as complication of chronic pancreatitis. Contribution of echotomography to the diagnosis in two cases (author's transl)].

Two men aged 28 and 33 were found to have subcapsular haematoma of the spleen secondary to chronic alcoholic pancreatitis. One of the patients presented with a pancreatic pseudo-cyst, left amylase pleural effusion and thrombosis of the splenic vein. Selective coeliac and mesenteric angiography and, chiefly, echotomography pointed to the diagnosis, which was confirmed on abdominal incision and histopathological study of the lesions. From these two cases and a review of 63 cases previously published the authors describe the clinical symptoms (acute anaemia with abdominal tumour), pathogeny (vascular or enzymatic) and diagnosis of the condition. Echotomography of the pancreas seems to be the best non invasive method to detect splenic complications of chronic pancreatitis.

Adult↗
PubMed1981

Mirizzi syndrome and biliobiliary fistulas: roentgenologic appearance.

Five cases of extrahepatic cholestasis caused by impaction of a voluminous gallstone in the neck of the gallbladder or the cystic duct are reported. The formation of a biliobiliary fistula is the rule. Percutaneous transhepatic cholangiography visualizes the fistulas and permits their classification into 2 groups: gallbladder to hepatic duct, and cystic to hepatic duct. Preoperative diagnosis permits the best resolutions of 2 problems encountered during surgery: (1) the tumor-like feature often produced by the cholecystitis can be ascribed to benign lithiasic etiology if the biliobiliary fistula is diagnosed in the preoperative phase; and (b) treatment by biliary plasty, which requires first opening the gallbladder and partial cholecystectomy, has to be achieved.

Adult↗
PubMed1981

Pulmonary involvement in Behcet disease.

The radiologic appearance of pulmonary involvement in six cases of Behcet disease is described. Chest radiographs in five patients showed infiltrates and/or rounded opacities followed by excavation in two cases and by pleural rupture in one. Repeat chest films on four of these five patients 3 weeks to 9 months after diagnosis showed resolution of the infiltrates and the subpleural opacities. The other findings from chest radiography in three patients were rounded or lobulated opacities near the hila. Four of the six patients underwent pulmonary angiography, which in all cases showed wide-spread occlusions of pulmonary arteries, accompanied in three cases by segmental or lobular pulmonary artery aneurysms corresponding to the proximal opacities visible on the plain films. Two of the three patients who displayed pulmonary artery aneurysms died of massive hemoptysis 3 and 13 months after angiography. In the third patient, progress under medical treatment was favorable; chest film 10 months after treatment started showed complete resolution of the aneurysms. Repeat angiogram also showed partial recanalization of the occluded arteries.

Adult↗