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Biomedical subjects

J J Pinot

Publications and source records attributed to J J Pinot.

11 recordsLinked to original sources
PubMed1989

Exploration of cervico-encephalic vessels using trans-brachial approach on outpatients.

Among the several methods used for the exploration of supra-aortic vessels, none is perfect. The intra-arterial digital subtraction angiography is a secure method. The transbrachial approach for this purpose is a safe and efficient technique. The possible risks at the level of humeral artery can be reduced by applying the method described in the text. We present our experience among 200 patients, using mostly the right brachial artery. The quality of image was good in 3/4 of cases. Humeral artery thrombosis occurred only once. Failure was almost nil. We also suggest preliminary heparinization to reduce the rate of hematoma formation.

Ambulatory Care↗
PubMed1989

[Treatment of stenoses of the urethra. 2].

This is a comparative study in 183 patients of the treatment of urethral stenoses by two-stage urethroplasty, internal endoscopic urethrotomy and urethrotomy via the Olbert catheter. Urethroplasty (39 patients) was preferentially carried out in patients with moniliform stenosis greater than 2 cm long in the penile and penoscrotal urethra. There was no significant difference in the indications for the two forms of urethrotomy. Good results were obtained for the 3 techniques in about 80% of cases but there was significantly higher complication rate with surgical urethroplasty. The failure rate of the 3 techniques did not differ significantly. The cost of treatment, on the other hand, greatly differed depending on the technique. Surgical urethroplasty was 2.8 times more costly than internal endoscopic urethrotomy and 10.4 times more costly than Olbert catheter urethrotomy. Olbert catheter urethrothomy was 3.7 times cheaper than internal endoscopic urethrotomy.

Humans↗
PubMed1986

[False subaortic aneurysm after surgery of calcified aortic stenosis. Apropos of a case treated successfully].

The authors report a case of false aneurysm of the posterior subaortic region of the left ventricle after a technically difficult surgical decalcification in a case of aortic stenosis. At reoperation, the surgeon used the femoral artery and both vena cavae for canulation. A direct approach of this "vascular" tumour, which was exterior to the great vessels, confirmed the diagnosis and enabled the localisation of the internal orifice inside the left ventricle. This was closed simply by suturing. No previous cases of this kind were found in the literature. This report underlines the necessity of taking the greatest care when decalcifying this region in order to avoid this type of serious complication.

Aorta, Thoracic↗
PubMedDate not supplied

Long-term peripheral stent evaluation using angioscopy.

To evaluate incorporation of peripheral artery stents into the arterial wall, we performed angioscopy on 13 patients fitted with Palmaz endoluminal stents. Of the 15 stents inspected, 5 were in the iliac artery, 9 in the femoral artery and 1 in the popliteal artery. The indications for placement were occlusion in 4 cases and high-grade stenosis in 11 cases including 3 restenosis after balloon dilatation and 1 restenosis after surgery. In 9 cases prosthesis insertion was preceded by laser treatment (Trimedyne Nd:YAG Cardiolase 4000). The decision to use a stent was based on radiologic findings in 3 cases (residual stenoses, dissections) and on angioscopic visualization in 7 cases (2 dissections, 5 flaps). In the remaining cases stent placement was performed electively. The only postoperative treatment was antiplatelet therapy (Ticlopidin). At the time of examination, the mean duration of placement was 6 months (extremes: 2 and 12 months). Inspection was made using Sopro-Meadox angioscope with a 0.75 mm probe mounted on an occlusive balloon for stents in the iliac artery and with a 2.2 mm probe with a working channel and sometimes a deflecting device for stents in the femoral or popliteal artery. Angioscopy was successful in all cases. Angiography was always performed at the same time as endoscopy. Endothelialization was observed in all cases. It appeared as a uniform and smooth whitish layer with a thickness proportional to the duration of placement. Endothelialization was most rapid in femoropopliteal arteries, total coverage being achieved within 4 months. Endothelialization took the longest on medial side of the iliac artery which may remain partially exposed after 12 months.(ABSTRACT TRUNCATED AT 250 WORDS)

Blood Vessel Prosthesis↗