Search PubMed⌕ Search

Biomedical subjects

J F Tricot

Publications and source records attributed to J F Tricot.

At least 37 records · Page 2Linked to original sources
PubMed1976

[Contribution of scintigraphy in acute and chronic pancreatitis. Apropos of 200 examinations].

The authors report 200 examinations and discuss the role of radio-isotope scans of the pancreas with electronic subtraction of the liver image in acute and chronic pancreatitis. As an emergency, the examination is of definite diagnostic value, the absence of fixation with a suggestive clinical context, is strong evidence of pancreatic disease and normal uptake eliminates the latter. On the other hand, in painful syndromes in which chronic pancreatitis is suggested, the diagnostic interest is very limited for the low uptake on radio-isotope scan occurs at a late stage and is not specific. Radio-isotope scans are worth a place in exploration of the pancreas in acute pancreatitis.

Acute Disease↗
PubMedDate not supplied

[Evaluation of the emboligenic potential of carotid plaques. Apropos of 113 echographic and macroscopic comparisons].

113 cases of atheromatous plaques in carotid arteries (69 cases where symptoms were present and 44 were asymptomatic) surgically treated by endarterectomy, including an accurate description of gross lesions, were compared to findings obtained with echographic examination to determine if there are specific echographic criteria corresponding to exact anatomical lesions. The echographic criteria selected for this study were the echo-inducing structure of the plaques; the relationship of the plaque with the artery wall (presence of a lesion continuous with the wall); the regular configuration of the endoluminal edge of the plaque or not; and finally, the notion of a discrepancy between the extent of the carotid artery stenosis visualized by ultrasound and that observed with echography (E much less than U). The primary results of this study demonstrate that echo-inducing, uniform and regular (36 cases) atheromatous plaques corresponded to ordinary, fibrous or calcified plaques in 69.4% of cases, with regular endoluminal borders. Irregular and non-uniform plaques (31 cases) suggested irregular, friable and/or ulcerated substance in 64.4% of cases. Poor echo-conducting plaques (9 cases) suggested formation of a thrombus, basically, in 44.4% or of soft and friable plaques (33.3% of cases). Those plaques which were continuous with the wall do not correspond to a precise type of lesion but, rather, are characteristic (with poor echo-conducting plaques) of the embolic nature of the plaques (100%). The criteria echo much less than ultrasound is specific for a thrombus in 75% of cases. On the other hand, the thrombus may also assume very diverse echographic presentations. Finally, three negative echo-ultrasound results were observed in this study.(ABSTRACT TRUNCATED AT 250 WORDS)

Arteriosclerosis↗
PubMedDate not supplied

[Simultaneous popliteal and leg revascularisation by sequential saphenous bypass in situ (author's transl)].

Certain types of threatening leg ischaemia are difficult to treat when there is a combination of obstruction at three levels: superficial femoral, popliteal and leg, leaving as the only distal vascular network a short segment of upper popliteal artery, "suspended" between several collaterals and a distal leg artery. Classical techniques come up against problems in terms of revascularisation ("suspended" popliteal or leg), surgical material and the flow rate in the graft. The technique suggested here uses the devalved great saphenous vein left in place to revascularise succesively, "sequentially", the 2 permeable arterial levels. The main advantages are the absence of any prosthesis, an increase in flow and improved haemodynamics of the arrangement, and the double level of revascularisation.

Femoral Artery↗
PubMedDate not supplied

"Redo" surgery for late aorto-femoral graft occlusive failures.

Experience of late failures of Dacron aortofemoral grafts is presented; about 70 cases observed during the past eight years on whom 105 subsequent operations were performed. One third of these patients were first operated upon by another surgical team. During the same period, 850 patients were submitted to reconstructive surgery of the abdominal aorta and iliac arteries either for atherosclerotic or for aneurysmal disease. It appears that conservative procedures like thrombectomy of the occluded limb are often insufficient, impossible, inappropriate or dangerous, even after restoration of a good deep femoral outflow. On the other hand, aggressive restoration of limbflow is generally necessary, with other various and ingenious direct or indirect reconstructive techniques for restitution of a good inflow and outflow. These techniques are usually successful (85%) and gain time against the major etiology of these late failures viz the development of atherosclerotic disease.

Aged↗
PubMedDate not supplied

[Congenital arterio-venous malformations. Long-term therapeutic effects of arterial ligatures. A plea for their abandon in favour of more recent procedures (author's transl)].

It is well known that proximal arterial ligations have no curative effect on arterio-venous malformations, unfortunately however they are still employed. The immediate and late consequences of such ligatures have been studied by analysing 36 out of 142 cases of arterio-venous malformations. These ligatures interfere with ulterior treatment. At present such a treatment relies on a combination of radio-surgical treatment associated with embolization and complete surgical excision of the malformation, whenever it is possible.

Arteries↗
PubMedDate not supplied

Arteriovenous fistulae of the internal iliac vessels.

Seven patients with arteriovenous fistulae of the internal iliac artery are reported. Ages varied from 6 to 50 years (mean 32 years). Cutaneous angiomata , leg oedema and pain was present in 4 cases each, bleeding in 2 cases whilst only one was asymptomatic. Only 1 patient had cardiac insufficiency. In six patients the lesion was a congenital malformation but in one it was posttraumatic. Arteriography both global and selective, intravenous pyelography and cardiac output are routine. Recently, pelvic computerised tomography has been most helpful. Embolization is recommended in all cases with surgery within 24 hours unless the lesion is very extensive and considered to be inoperable. Repeat embolization is used for recurrence or very extensive lesions. Results were good in five patients; in two patients the results were clinically good but control angiograms showed a recurrence.

Adult↗
PubMedDate not supplied

[Axillary-femoral by passes. Technic. Complications. Results (92 patients) (author's transl)].

Between January 1970 and October 1977, 95 operations of revascularisation of 124 lower limbs were carried out using the axillary artery in 92 patients. 84 patients had very severe ischemia, acute or chronic, which threatened the survival of the limb. In all, direct surgery was too dangerous (77 cases) or impossible owing to local or regional problems (7 cases). The results gave a mortality during the first two months of 13% in which infective complications of the technic accounted for 3.5%. The latter were frequent (12%) but a certain number of them could have been prevented (6%). 55 patients (65%) had a good result at two months (weight-bearing conserved) whilst 20%, i.e. 18 patients were amputated, of which five had a permeable by pass which permitted conservation of the knee. We observed the highest percentage of deaths (3/8 i.e. 37%) in bilateral emergency revascularisations for acute ischemia. We observed a very low percentage of early thrombosis (4%) in axillary bifemoral by pass performed for chronic ischemia. The operation is of great value when no other direct surgical technic is possible and only in these cases. 8 patients underwent an axillary by pass to treat infective complications of aorto-iliac surgery. 4 early deaths showed the severity of this complication (50%). Tactical aspects are discussed briefly.

Aged↗
PubMedDate not supplied

The role of surgery in the treatment of acute phlebitis in the lower members.

UNLABELLED: Most phlebitis responds favorably to medical treatment. Iliofemoral and iliocaval phlebitis, however, involve considerable risk as they may endanger life (pulmonary embolism), limb (ischemic forms) or the functioning of the limb (severe post-phlebitic syndromes). Because of this triple risk it is important to be able to judge when to opt for surgery. Surgical treatment is called for in cases of certain iliofemoral phlebitis developing in spite of medical treatment. Threat of "blue phlebitis" (acute arterial ischemia); threat of severe post-phlebitis syndrome (the thrombosed iliac veins do not easily recover their permeability); threat to life (iliac thromboses producing mortal embolism). These three risks justify emergency phlebography. The aims, means and limitations of surgery. 1. Aim - to maintain the permeability of the femoro-ilio-caval venous axis and to avoid pulmonary embolism. 2. Methods - Thrombectomy is done at the level of the femoral vein using Fogarty's catheter and Esmarch's bandage; this is carried out at an early stage (5 first days). A De W. clamp may be positioned at the level of the vena cava (in case of preexisting pulmonary embolism or incomplete thrombectomy). 3. INDICATIONS: --Phlebitis with ischemia. --Recent severe phlebitis not responding enough to urgent medical treatment particularly in the cases of young patients. --Clamp used in cases of pulmonary embolism or when threats of embolism are visible on the phlebography (floating clots). 4. MATERIALS: --82 patients were operated between 1970-1978. Phlebography showed: 44 iliofemoral phlebites, 11 femoropopliteal phlebites, 27 iliocaval phlebites. --Arterial affection revealed in the cases of 8 patients, four of which had blue phlebitis. --Pulmonary embolism was the symptom showing iliofemoral phlebitis in 7 cases. 5. OPERATIONS: 42 isolated clamps; 40 thrombectomies (in 15 cases completed by a clamp, in 12 cases by arteriovenous fistula; in 10 cases by treatment of an anomaly of the origin of the left common iliac vein. 6. RESULTS: --Two deaths. --In the long term (average interval = 4 years) the results were excellent in 54% of the cases (no oedema), good in 28% (light compression required), and bad in 8%. Conclusion. Certain iliac phlebites can, we believe, be cured by surgery.

Acute Disease↗