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Biomedical subjects

G Hidden

Publications and source records attributed to G Hidden.

At least 37 records · Page 2Linked to original sources
PubMed1992

[Pericardial fatty fringes: preoperative anatomo-radiographic value of their use in the protection of bronchial sutures].

Bronchial sutures grafts by epiplooplasty is a method used to allow a better vascularisation of the bronchial sutures. The authors purpose an other method using the pericardial fatty fringes (P.F.F.). The vascularisation of P.F.F. was studied on 30 fresh cadavers and 8 patients before surgery. Angiography of the internal thoracic artery was done in the first group and M.R.I. in the second group. M.R.I. is better than angiography because numerous parietal vessels project in the angiogram, and they overlap pericardial fat fringes vessels.

Aged↗
PubMed1991

[Parameters of the facial bones in the fetus. Anthropology and medico-legal application for the determination of the fetal age].

From 93 skulls and 23 foeto-skeletals we give a glimpse of the rhythme of the human foetuse's facial bones growth and the main variations for facial measurements rating during foetal period. The best correlation between foetal age and facial measurements was obtained with facial height (correlation coefficient: 0.96). Evolution of cranio-facial rating, during foetal stages shows essentially: the increase of the height/width facial rating, the same rhythme of growth for frontal and facial width, the rapidly growth of biparietal diameter up to 30 amenorrhea weeks comparatively to the facial and frontal growth in width.

Age Determination by Skeleton↗
PubMed1990

[Lymphatic afferents and efferents of lymph nodes of the Barety's space. Anatomic review in adults].

Lymph nodes of the Barety's space (LNLB) often involved in lung diseases are known under various names for a long time ago by pathologists. Our study involves 360 cadavers of adult subjects. The injection of a dye was performed by direct catheterization of a pulmonary segment. L.N.L.B. were directly or indirectly coloured (inter connected ganglionary network) more often from the lobes of the right lung, but from the lobes of the left lung too. From L.N.L.B. the lymphatic flow discharges in the venous confluent of the neck in the right side; in 1/4 of the cases a mediastinal efferent joints the left venous confluent too. From the lower lymph nodes of the space efferents can go to lymph nodes which are located right along the arch of the azygos vein (and then to the thoracic duct) and in the left side the group of left suprabronchial lymph nodes (then either to the thoracic duct in the mediastinum, or to the recurrent chain to the neck). At last, it seems that inside the lymph nodes themselves, lymphatic flows exist, the topography and the nature of which change according to the area interested by the injection.

Adult↗
PubMed1990

[Some recent, or claiming to be recent, data on the superficial lymphatic circulation of the limbs].

Superficial collecting lymphatics of the limbs are present in much greater number than deep collecting vessels. There is practically no connexion between both networks. Although lymphatics are abundant distally, they tend to fuse toward the root of the limb. At certain "critical" points along their course, local aggression of the vessels may cause lymphedema. In the lower extremity, at the knee and thigh levels, the "critical" area takes the form of a narrow strip of adipose tissue along the path of the great saphenous vein. In the groin, danger is localized at the inferior superficial inguinal nodes, where the superficial collecting lymph vessels merge. In the upper limb, superficial lymphatics converge towards the base of the axilla, where they form three or four trunks that perforate the clavipectoral fascia, each penetrating through its own orifice. Draining lymphatics may approach the axillary space independently. Unfortunately, the inferior axillary nodes wherein they converge also drain the breast, as can be demonstrated by injecting different coloring materials concurrently in both areas. Excision of nodes draining the mammary gland unavoidably jeopardize superficial lymphatic drainage of the upper extremity.

Arm↗
PubMed1989

The arterial blood supply of the human fetal diaphragm.

To gain a better understanding of the development of the human diaphragm, a study of the arterial supply was made in 20 fetuses. The Micropaque injection was injected either by an ascending route in the thoracic aorta or by a descending route in the left internal carotid below the ductus arteriosus. Two studies using diaphanization have displayed the diaphragmatic anastomoses. The phrenic and the intercostal a. seemed the most important to explain the diaphragm organogenesis.

Arteries↗
PubMed1989

Serial maternal plasma concentrations of progesterone and estradiol during the morning, the afternoon and at night throughout normal pregnancy in the cynomolgus macaque.

Total progesterone (P4) and estradiol (E2) were determined in plasma from 10 pregnant cynomolgus macaques, Macaca fascicularis. A non-invasive blood collection technique utilizing a squeeze-cage and a catheter fixed momentarily in the brachial or saphenous vein allowed a 10-min serial blood sampling (SBS) for 3 h in the morning, the afternoon or at night at 30, 50, 70, 90, 110, 130, 150 and 165 days of pregnancy and on the day after delivery, without modifying gestation length or damaging fetal health. During an SBS session, extensive fluctuations of high P4 levels (greater than 10 ng/ml) were sometimes observed and infrequent pulses might occur, while E2 levels fluctuated only slightly but increased progressively. It is concluded that, even with the SBS method, individual differences in hormone patterns still occur throughout pregnancy. We suggest that a single daily P4 or E2 determination is not an accurate indicator of pregnancy normality.

Animals↗