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Biomedical subjects

J M Chevalier

Publications and source records attributed to J M Chevalier.

At least 91 records · Page 5Linked to original sources

[Cockett's synechiae. Report on 31 cases (author's transl)].

Cockett's syndrome may arise from intraluminal adhesions near the distal end of the left common iliac vein, bone or arterial compression, etc. These synechiae are frequently observed, numerous embryological and histological arguments suggesting their congenital origin. A common complication of these synechiae is a left phlebitis, but they do not appear to be a determining factor for the development of thrombosis, and are otherwise usually asymptomatic. When complications do arise, as in the 31 cases reported, surgical treatment should involve early angioplasty in young subjects, or a late Palma-Dale type of shunt in elderly patients and those with a history of a left iliac thrombosis.

Adolescent↗

[By-pass from sub-clavian to carotid artery. A rescue procedure in the treatment of common carotid artery hemorrhage (author's transl)].

Rupture of a carotid artery in an infected or irradiated environment is a tragic event that frequently causes immediate death. Plain ligature, when possible, for these patients in a state of shock, leads to cerebral ischemia in 65% of cases. This can be prevented, if one operates soon enough by an extra-anatomic by-pass, avoiding the infected or irradiated area, between the subclavian artery and the homolateral carotid artery. (Study of 2 cases). Such a procedure could be used preventively when the risk for the carotid is highest (particularly septic surgery followed by irradiation).

Aged↗

[Thyroïd cyst, parathyroïd adenoma and lithium therapy (author's transl)].

A forty years old woman had euthyroidïd functions three years ago, with normal scintiscanning. Under treatment with Lithium, she developed a clinical and biological hypothyroidïdism. A "cold" nodule was fund on the scintiscanning. Hypercalcemia and hypophosphoremia were fortuitously discovered prior to operation. A single parathyroididïd adenoma was excised from the left inferior gland. Incidence of Lithium in the appraisal of the thyroïd cyst and the parathyroïd adenoma is discussed.

Adenoma↗

[Pituitary insufficiency and auto-immunity (author's transl)].

An indirect immunofluorescence study of the serum of 37 patients with anterior pituitary disease suggested that in a number of them an auto-immune process intervened in the pathogenesis of the condition. Seven sera reacted positively to human pituitary gland and 15 to rat pituitary gland. Auto-antibodies directed specifically against one or several types of pituitary cells seem to be more frequent in pituitary insufficiencies involving one or two hormones. These are more readily detectable when rat pituitary glands are used, and only by this technique can auto-antibodies directed against ACTH-secreting cells be detected.

Animals↗

[Destruction of the valve of the great saphenous vein in the technique of femoro-popliteal bypass in situ (author's transl)].

Destruction of the valves of the great saphenous vein is one of the essential steps in femoro-popliteal bypass in situ. The authors suggest the use of bougies with a tip in the form a shell, the base of which is adorned with 4 rounded and smoothed teeth. After destruction of the great saphenous and ligation of the collaterals, arterial filling of the vein after superior anastomosis and the retrograde insertion of strippers may be used the collapse the valves opened by the blood flow. Amongst 40 bypasses performed using this technique, 38 were without problem.

Femoral Artery↗

[Ischio-popliteal artery trunk, persistence of the axial artery].

The authors studied two cases of persistent axial artery of the lower limb, a classic but exceptional variation (42 cases in the literature). It is well explained by embryology and is a recapitulation of anatomy in the animal series. By the systematic study of the literature, we can isolate four distinct types: Type I: Complete axial artery, normal femoral artery. Type II: Id., but incomplete femoral artery, with two subdivisions: II a: Femoral artery is present but incomplete. II b: Femoral artery is absent. Type III: Axial artery only in the proximal zone. Type IV: Axial artery only in the distal zone. In these two last types, the femoral artery is complete. The I, III and IV types correspond to organogenetic perturbation at the stage 21 of Streeter. The type II implies a more early disturbance, prior to stage 18.

Adolescent↗

[Spontaneous perforation of the rectum. One case (author's transl)].

A 48-year-old man, operated upon with a diagnosis of perforation of a hollow viscus, in whom a spontaneous perforation of the rectum was discovered. Such perforations are rare since only 36 cases have been reported in the literature. The mechanism is unknown and various factors have been suggested, including increased pressure or local ischaemia. Treatment is rendered difficult by local infection and the frequently fragile general condition of the patients.

Humans↗

[Spontaneous rupture of an aneuysm of the abdominal aorta into the inferior vena cava].

Rupture of an aortic aneurysm into the inferior vena cava is a rare complication; it represents 3 p. 100 of all ruptured aneurysms. The authors report a case with a typical clinical history and 3 main symptoms : lumbar pain, a pulsatile expansile mass, a continuous abdominal murmur giving rise to a thrill. The diagnosis was confirmed before operation by angiography which showed a fistula. A technical detail is emphasised: clamping of the inferior vena cava opening the aneurysm to reduce the risk of embolism into the right side of the heart during operation.

Aged↗

Endofibrosis of the iliac arteries: an underestimated problem.

Arterial endofibrosis is a recently discovered artery disease that is specific to endurance athletes. Cycling is the sport that has shown the greatest number of cases. The endofibrosis is located most frequently in the external iliac artery, but other locations must also be sought. Thigh pain during supramaximal exercise and patient questioning provide strong indications. The diagnosis is confirmed when there is concordance of exercise-induced symptoms, a positive exercise test result and discrete arteriographic characteristics. Treatment is based on folate supplements and standardised surgery carried out by an experienced surgical team.

Angiography↗