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J F Viallet

Publications and source records attributed to J F Viallet.

At least 91 records · Page 5Linked to original sources
PubMedDate not supplied

Percutaneous recanalization of recent renal artery occlusions: report of 10 cases.

PURPOSE: Percutaneous recanalization of renal artery occlusion was attempted in 10 patients. METHODS: All patients were hypertensive; before the procedure, the serum creatinine level was 80 mumol/L in one patient, ranged from 130-250 mumol/L in four patients, and was greater than 350 mumol/L in five, three of whom had anuria. Nine occlusions were thrombotic, one due to bilateral renal artery embolism. In four patients, percutaneous transluminal angioplasty of a contralateral renal artery occlusion was bilateral. In three patients, complementary local fibrinolysis was necessary. RESULTS: Three technical failures and one rethrombosis occurred after 24 h; in three of these cases the date of previous occlusion was unknown, whereas a relatively precise data was known for the seven other patients. One false aneurysm of the femoral artery was found 1 month after the procedure. One patient, after six technical successes, died 5 weeks after the procedure; follow-up for the other five was 6-36 months. Blood pressure was unchanged in four patients and improved in two. A significant and durable improvement of creatinine serum level (at least a 20% decrease) was observed in all six patients, usually after 1 month, thus enabling discontinuance of dialysis in three patients. CONCLUSION: Percutaneous recanalization should be proposed in cases of renal artery occlusion, especially to avoid terminal vascular azotemia and dialysis.

Adult↗
PubMedDate not supplied

Local fibrinolysis for superior mesenteric artery thromboembolism.

A 66-year-old man with atrial fibrillation was referred soon after developing left lower limb and abdominal pain with rectal bleeding. An immediate flush aortogram showed embolic occlusion of the left distal superficial femoral artery and superior mesenteric artery (SMA), 3 cm from its ostium. Recombinant tissue plasminogen activator (rtPA) 40 mg was selectively instilled in the SMA in two boluses. Abdominal symptoms resolved within 48 h, and complete recanalization of the SMA was shown on angiography. Exploratory laparotomy after 72 h showed a normal small bowel and right colon, and was completed by femoropopliteal embolectomy. Six months later, the patient remained asymptomatic.

Aged↗
PubMedDate not supplied

Spiral CT quantification of aorto-renal calcification and its use in the detection of atheromatous renal artery stenosis: A study in 42 patients.

PURPOSE: To investigate whether a correlation exists between aortic and renal arterial calcifications detected with spiral CT and significant angiographic renal artery stenosis (RAS). METHODS: Forty-two patients (mean age 67 years, range 37-84 years), of whom 24 were hypertensive, prospectively underwent abdominal helical CT and aortic and renal arteriography. The 3-mm thickness CT scans (pitch = 1) were reconstructed each millimeter. A manual outline of the renal artery including its ostial portion was produced. Calcific hyperdensities were defined as areas of density more than 130 HU. CT data were compared with the presence or absence of RAS on angiography (24 cases); hypertension and age were taken into account (Mann-Whitney U-test). RESULTS: CT detection and quantification appeared to be reliable and reproducible. We did not find any correlation between aortic and renal arterial calcifications and RAS, even for the patients above 65 years, with or without hypertension. There was no correlation either between calcifications and hypertension in patients without RAS. CONCLUSION: In this population, aortic and renal arterial calcifications have no predictive value for RAS.

Aged↗
PubMedDate not supplied

[Retrograde iliocavographie].

The authors describe a technique for retrograde phlebography of the lower limbs that involves introducing a Cournand catheter into the superior system via one pf the basilic veins so that it reaches the inferior vena cava, passing through the right atrium. The new feature of this method, which has been previously used by Dow and Gillot, is that the catheter may be passed fairly low into the iliac or femoral veins. Thus with a single catheter it is possible to carry out cavography, bilateral phlebography of the external iliac veins or even the internal iliacs, or bilateral femoral phlebography. The most suitable indications for the this technique include (1) the search for a residual cross after stripping, (2) the assessment of recent iliac thrombosis when there is an indication for surgery, (3) the assessment of a "swollen leg" when there is a doubt in diagnosis between lymphoedema and phleboedema, and (4) the study of deep repermeabilization in cases of post-phlebitic syndrome (before eventual surgery of the saphenous veins). This examination, which should be carried out in a vascular radiology unit; makes it possible to obtain films of good quality that are easy to interpret and that provide a very complete phlebographic assessment.

Humans↗