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Biomedical subjects

A Leguerrier

Publications and source records attributed to A Leguerrier.

At least 91 records · Page 5Linked to original sources
PubMed1982

[Surgery of aneurysms of the abdominal aorta. Clinical study and surgical results. Apropos of a series of 54 cases].

54 patients with an abdominal aortic aneurysm were hospitalized between 1969 and 1980 in the Clinic of Cardiovascular and Thoracic Surgery at Rennes (Pr. Y. Logeais): 35 were ruptured aneurysms, 19 non-ruptured. The average age of the patients was 70.6 years. 48% of patients showed signs of atheroma in at least one other site. 24% had arterial hypertension. Arteriography was carried out in 51.5% of the non-ruptured aneurysm cases and in 26% of the ruptured cases. Both ultrasound and tomography are regarded presently as very useful tests. The intervention carried out in 41 patients always involved the insertion of a by-pass graft (aortic only in 7 cases; aorto-biiliac in 19 cases; aorto-bifemoral in 15 cases). Mortality was 7.7% for the non-ruptured aneurysms. 59% for the ruptured aneurysms, the deaths above all being related to the degree of visceral ischaemia. Secondary mortality was comparable for all the aneurysms operated on. More than 80% of patients were surviving 5 years after surgery.

Aged↗
PubMed1982

[Anatomic and tomodensitometric study of the levator ani muscle in infants].

A double anatomic and computed tomographic study of the muscle levator ani has been performed in pediatric patients. In or study, we have used frozen anatomical specimens. The anatomic and computed tomographic sections have been made strictly comparable, every 3 millimeters. These actions provide the normal computed tomographic aspect of the muscle levator ani. This anatomic study may have a direct application in the evaluation of imperforate anus, which is often difficult to diagnose : it allows a more precise determination of the level of the terminal rectal pouch compared to the level of the levator ani.

Anal Canal↗
PubMed1980

[Ventricular branches of the circumflex artery of the heart].

Because of the great number of anatomic descriptions, and because of the variability of the nomenclature, the authors realized three studies: anatomical, radiological, and surgical studies of 198 hearts (150 dissections and 148 angiographies). There are 3 groups of collateral branches for the left ventricle: --The lateral branch (existing in 49 per cent of the cases), beginning after a short space with often an intra-myocardial segment, and running obliquely on the pulmonary surface of the left ventricle. --The lateral and inferior branch (existing in 38 per cent of the cases), situated just between the pulmonary and diaphragmatic surface of the ventricle, and perpendicular to the coronary sulcus. --The inferior or posterior branches (existing in 59 per cent of the cases), which are parallel to the inferior (or posterior) interventricular sulcus, on the diaphragmatic surface of the heart.

Coronary Angiography↗
PubMed1979

[Dimensions of the aortic ring. Anatomic and surgical study of 2 series of patients].

Both surgical (236 aortic valve replacements) and anatomical (62 dissections) studies have defined the aortic annulus diameter. Measurements (23.5 mm for women; 26 mm for men) are more considerable than established values. Furthermore, surgical study allows the authors to compare these results to several variables, more especially corporeal surface and stature: the height's increase perhaps explains the large sizes discovered.

Aorta↗
PubMed1979

[Agenesis of the left pericardium. Apropos of 3 anatomo-surgical observations].

After a short review of the history and the frequency of this malformation, the authors report three cases of pericardial defect: two cases of partial defect, and a case of complete absence (these three patients have been operated); these observations allow the authors to insist on the difference between the complete absence (often very well tolerated) and the partial defect, which exposes to left atrial appendage's incarceration (and sometimes sudden death). The classification based on the extension of the lesions is then considered, and the usual aspect of each type is described. The embryologic findings can explain the higher frequency of left pericardial defects.

Adolescent↗
PubMed1978

Aneurysm of the main stem of the left coronary artery associated with aortic insufficiency and aneurysm of the ascending aorta. Report of a case with successful surgical repair.

A case of aneurysm of the main stem of the left coronary artery associated with aortic insufficiency and an aneurysm of the ascending aorta is reported. The importance of coronary angiography in diagnosing this condition is illustrated. Surgical repair included isolation of the coronary aneurysm and replacement of the ascending aorta and aortic valve, combined with triple aortocoronary saphenous vein bypass grafts. A review of the aetiology, clinical features, and surgical management of coronary artery aneurysms is presented.

Adult↗
PubMed1978

[Comparative study of afferent connections in the habenula in rats and cats after injection of horseradish peroxidase].

The habenular complex of 11 cats and 13 rats was injected with horse Radish peroxydase (HRP) (30% solution, 0,05--0,4 microliter). Retrograde labelling of cells was visualized after a survival period of 24 to 48 hours by means of the method of Lavail et al. (1973). The resultats obtained with this method suggest significant species differences regarding the habenular afferents in cats and rats. One of the most striking differences is that the entopeduncular nucleus of the cat contains very few HRP labelled cells after lateral habenular nucleus injection in comparison to the entopeduncular nucleus of the rat which can be shown to be the major source of afferents to the lateral habenular nucleus by the same method.

Afferent Pathways↗
PubMed1978

[Thoracopagus. Possibilities of surgical separation].

A new case of thoracopagus twins is reported. Radiological, hemodynamical and surgical explorations showed a communication between the two hearts, situated at the atrial level and associated with digestive and cardiovascular malformations. These abnormalities were definned by the anatomical study realized after vascular injection:hypoplastic pulmonary artery (associated with a persistent atrio-ventricular canal in one case, with a tricuspid atresia in the other case), a large fused liver, common pancreas and ileum. A bibliographic study allows the authors to define surgical separation possibilities. The prognosis depends essentially on cardiovascular abnormalities associating abnormal connections between the twins' hearts with malformations often too severe for surgical repair.

Humans↗
PubMed1978

[Abnormal fusion of 2 primitive trigeminal arteries: apropos of an anatomo-radiological case].

Agenesis of the internal carotid artery was discovered during emergency cerebral angiography carried out on a comatose 28 year old man. The left cerebral hemisphere was supplied from the controlateral carotid artery, via a large vessel running through the sphenoid bone, between the intracavernous portions of the internal carotid arteries. Postmortem examination showed that death resulted from massive haemorrhagic infarction of the cerebellum and brain stem. Absence of the cervical and petrosal portions of the left internal carotid artery was confirmed. The anastomotic vessel was found to run through the spongiosa below the dorsum sellae. The heart, major vessels and circle of Willis were otherwise normal. An intercarotid anastomosis of this type has been reported on three previous occasions, in none of which was there anatomical confirmation.

Adult↗
PubMed1978

[Deep femoral artery. Anatomoradiological study].

After a double study (anatomical--50 dissections--and radiological--100 arteriograms) the following points can be stressed: the femoral tripod is only found in 38 per cent of the cases. One or several nutrient arteries of the thigh originate often separately (62% of cases). Their origine is situated highup in a number of cases (at 3 cm below the inguinal ligament). The collateral network develops from each of the arteries forming a complete "profunda femoris system". Two surgical consequences deserve to be underlined: 1. The approach to all the branches is possible by a transverse incision in the fold of the groin. 2. Surgical revascularisation must concern the whole of the "profunda femoris" network.

Collateral Circulation↗
PubMed1977

[Arterial vascularization of the 3rd and 4th portions of the duodenum. Recent acquisitions].

New knowledge on arterial blood supply of the 3rd and 4th parts of theduodenum. Injection of the digestive arterial system in 15 adult subjects allows the study of the blood supply of the 3rd and 4th parts of the duodenum. Although the duodeno-pancreatic arches are constantly found, the authors showed that the branches to the duodenum have a variable layout. On the right of the superior mesenteric artery, the distribution of the branches is always regular on both sides of the 3rd part of the duodenum. On the other hand, on the left of this artery, there is sometimes a vascular hiatus which may extend to the duodeno-jejunal angle. Although in 60 per cent of the cases, this part of the duodenum is well supplied with blood on both surfaces, in 40 per cent of the cases on the other hand, there exists an avascular area on both sides. This lay-out is not favorable for division and anastomosis of this segment of the digestive tract.

Celiac Artery↗