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Biomedical subjects

Y Guerrier

Publications and source records attributed to Y Guerrier.

At least 37 records · Page 2Linked to original sources

The anterior commissure of the larynx.

This study is based on a very large series of histological sections of non-tumour-bearing larynges, most of them in the horizontal plane. Six hundred sections in one larynx were performed to show the constitution of the anterior region of the larynx at all levels. Although the same tissues are present (fibres, glands and vessels) in almost the entire extent of the anterior segment of the larynx, there is a small zone immediately above the vocal cords with neither glands nor vessels. The authors designate this zone as 'plane O' which separates the anterior commissure from the thyro-epiglottic ligament. It is not possible to separate the anterior commissure from the most anterior portion of the subglottis, because the glands and vessels are in continuity. There are 2 regions of the anterior part of the larynx: a supraglottic (vestibulo-epiglottic) and a glottic-subglottic to which the anterior commissure belongs.

Glottis↗

[Surgical and functional anatomy of the base of the skull: middle and posterior sections (author's transl)].

There has recently been renewed interest in the anatomy of the base of the skull. In this anatomical introduction, after an osteological description of views and sections of the base of the skull, exo- and endocranial, the author reviews the environment and relations of the endocranial surface, the exocranial surface as well as those of the structures involved in and passing through the skull base. This precise information concerning certain anatomical details is useful in the interpretation of scanner results and in determining the surgical approach to this region.

Carotid Artery, Internal↗

[Partial laryngectomies with difficult presentations. Apropos of the surgical treatment of laryngeal epithelial tumors].

Difficult indications for certain partial laryngectomies are presented. Anatomically, the difficulties stem from the thyroid cartilage and paraglottic space in which invasion (difficult to determine), is contradictory for partial surgery. The principal objective is the cure of the laryngeal cancer all in maintaining laryngeal function. The surgeon must conserve a "minimal arytenoid unit" (the whole formed by the pharyngo-epiglottic fold, the ary-epiglottic fold, the arytenoid and the corresponding cord). Other difficulties not carcinologic are found: physical conditions, social and professional situation, and preexisting local problems (associated laryngocele or previous vocal palsy). Finally, carcinologic difficulties can be seen: the situation of the tumor, the rapidity of its evolution, anatomopathological types, presence of nodes and metastasis and previous physio and chemotherapy.

Carcinoma↗

[The microvascularisation of the laryngeal and tracheal mucosa. Introduction to the physiopathology of stenosing lesions (author's transl)].

The authors studied the vascular supply of the laryngeal and tracheal mucosa. They based their results on the technique of microangiography. In this study the authors compare the distribution of the small vessels of the mucosa of the cervical trachea and of the larynx--posterior commissure, laryngeal surface of the spiglottis and sub-glottal level. There are analogies between the mucosa of the trachea and that of the sub-glottal level. The region of the posterior commissure has special characteristics. The authors demonstrate the importance of these small vessels in the physiopathology of stenosing lesions (post-tracheotomy or post-intubation).

Female↗

Difficult indications for partial laryngectomy.

Difficult indications for certain partial laryngectomies are presented. Anatomically, the difficulties stem from the thyroid cartilage and from the paraglottic space in which invasion (difficult to determine) is contradictory for partial surgery. The principal objective is the cure of the laryngeal cancer all in maintaining laryngeal function. The surgeon must conserve a 'minimal' arytenoid unit' (the whole formed by the pharyngoepiglottic fold, the aryepiglottic fold, the arytenoid and the corresponding cord). Other difficulties not carcinogenic are found: physical conditions, social and professional situation, and preexisting local problems (associated laryngocel or previous vocal palsy). Finally, carcinogenic difficulties can be seen: the situation of the tumor, the rapidity of its evolution, anatomopathologic type, presence of nodes and metastases and previous physiotherapy and chemotherapy.

Adenoids↗

[Vascularization of the laryngeal cartilages; true clinical importance (author's transl)].

The authors specify the role of the ossification process of the larynx cartilages. Only the epiglottis may be considered as a cartilage. The use of microangiography made it possible to describe some peculiar features of the microvascular pattern. The vascular patterns of the thyroid, cricoid and arithenoids cartilages are similar to one another; the cartilage and its two perichondriums must be considered as a complete whole. The epiglottis shows a peculiar vascular pattern. The authors insist upon the important role of the vascular pattern in pathologic studies.

Angiography↗

[Functional investigation of the sense of smell and its role in the diagnosis of sense of smell disorders].

The authors deal in turn with: -- the anatomical classification of disorders of the sense of smell, -- the various clinical and instrumental methods used to investigate the sense of smell, -- a practical method of investigation enabling the topography and the nature of the lesion to be found when a patient presents with a disorders involving the sense of smell. Finally, a classification of the various disorders which may be observed is suggested based on the topography of the lesion in the olfactory system.

Humans↗