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Biomedical subjects

F Joffre

Publications and source records attributed to F Joffre.

At least 163 records · Page 9Linked to original sources
PubMed1975

[Epiploic arteries. Normal and pathological radiological appearances (author's transl)].

The blood supply of the greater omentum was studied using selective digestive angiography in 450 cases. Comparison of the radiology and the anatomical appearances showed that their are two independent systems, right and left, the size of which is variable from one subject to another. These blood supplies are united by variable anastomoses which are difficult to demonstrate by arteriography. However, the classical anastomotic arterial circle of the greater curvature, between the right and left gastro-epiploic arteries was never found. The pathology of the greater omentum is of two types: Tumoral pathology: the demonstration of epiploic metastases is the most frequent finding in pathological cases. Its practical and prognostic importance is very great for it contra-indicates laparotomy. Associated pathology: the greater omentum reacts to any infective or neoplastic process of the abdominal cavity, such as "sentinel loop". These topographic changes should orient analysis of the films towards a given region and lead one to suspect some disease yet undiagnosed or not very obvious on arteriography.

Angiography↗
PubMedDate not supplied

Transjugular intrahepatic portocaval shunt after thrombus disruption in partially thrombosed portal veins.

Portal vein (PV) thrombosis increases the risk of variceal bleeding in cirrhotic patients with portal hypertension. Its presence also complicates PV access during transjugular porto-caval shunt (TIPS) placement. We overcame this obstacle by using ultrasound (US) guidance for PV entry. Clot disruption by balloon catheters was then performed before placing the vascular endoprostheses for portal-venous shunting. We treated 3 cirrhotic patients in such fashion with good clinical results. Portal thrombi progressively disappeared after shunting due to both balloon disruption and the rise in portal blood flow velocity.

Catheterization↗
PubMedDate not supplied

Midterm results of renal artery stenting.

Percutaneous transluminal angioplasty (PTA) has become the treatment of choice for major renal artery stenosis. Nonetheless, about 10% of renal artery stenoses cannot be properly dilated, and among the patients successfully dilated, 10%-15% had a recurrence. Renal artery stenting was used in 21 patients in cases of insufficient results after PTA: persisting significant stenosis after a primary or several PTAs (15 cases), recurrences (9 cases). Follow-up in all patients was from 12 months to 4 years. Implantation was performed without any problems but the low radioopacity of the stent makes placement difficult in obese patients, particularly for ostial lesions. There was no major complication except occlusion of a segmental branch of the renal artery in 1 case. Radiological controls have shown a preserved patency in all cases except 2, which present restenosis inside the stent by intimal hyperplasia. A significant clinical improvement was obtained in 90% of cases. These results suggest that the endovascular prosthesis represents an important adjunct to renal PTA.

Angioplasty, Balloon↗
PubMedDate not supplied

Middle mesenteric artery visualized by computed tomographic angiography.

The middle mesenteric artery, a third mesenteric artery arising from the aorta that principally feeds the transverse colon, is an extremely rare anomaly. We identified a middle mesenteric artery branching into the ileocolic artery and into the right, middle, and accessory middle colic arteries. It supplied the cecum and the entire ascending and transverse colon. This anomaly was detected with computed tomographic angiography.

Angiography, Digital Subtraction↗
PubMedDate not supplied

In vitro evaluation of a new rotational thrombectomy device: the Straub Rotarex catheter.

PURPOSE: To evaluate the efficacy of a new rotational thrombectomy device, and the procedure-related risk of particle embolization. METHODS: The experiments were performed in transparent silicone tubes. The conditions of flow were as close as possible to physiological parameters. Distal embolization was detected by a mesh of nylon filters. RESULTS: The Straub Rotarex catheter was able to remove all clots. The mean number of migrating particles larger than 1000 microm was 0.17 (+/- 0.38), the mean number of 400-1000 microm migrating particles was 1.08 (+/- 1.04). The mean intervention time was 67 (+/- 37) sec. The mean volume of collected liquid was 96.6 (+/- 24.7) ml. CONCLUSION: The in vitro results suggest that the Straub Rotarex catheter is able to remove large volumes of thrombus with a limited risk of embolization. The main limitation of our model is the absence of adhesion of the clot to the tube.

Catheterization↗