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Biomedical subjects

A Colchen

Publications and source records attributed to A Colchen.

48 records · Page 3Linked to original sources
PubMed1980

[Indications and results of the use of YAG laser in bronchology. Apropos of 89 cases].

A YAG Laser beam adapted to bronchial endoscopy was used in 89 patients (6 bronchial tumors, 7 tumors of reduced malignancy, 37 tracheo-bronchial cancers, 39 iatrogenic lesions including 24 stenosis and 15 granulomas). Curative indications (isolated bronchial tumors, diaphragm-like stenosis) were rare. The authors stress the interest of palliative indications: inoperable tracheal stenosis and certain forms of tracheobronchial cancers. The criteria of lesions attainable by the Laser are specified.

Bronchial Diseases↗
PubMedDate not supplied

[True and false problems in surgery of pulmonary aspergilloma. Study of 220 cases (author's transl)].

Different problems involved in the surgery of 220 cases of pulmonary aspergilloma are analyzed. The operatory blood loss, which was more abundant than usual, did not bring about any complication. The authors believe that pleural cavities were observed for only 6% of the partial excisions, probably because of the complementary thoracoplasties they performed. The true problem is raised by the patients suffering from respiratory failure for whom techniques of direct approach are the only solution.

Aspergillosis, Allergic Bronchopulmonary↗
PubMedDate not supplied

[Use of a flexible laser-beam (Yag) for endoscopic treatment of some tracheobronchial lesions (author's transl)].

After the use for several years of an endoscope which enables electro-coagulation in the treatment of some tracheo-bronchial lesions, the limitations and accidents of this method were compared with clinical results and experimental research. Results seem to indicate that the flexible laser beam can considerably improve therapeutic possibilities. This beam, conducted by a flexible fiber, could easily be used by medico-surgical teams who already possess the suitable endoscopic material, or material that could readily be adapted to this method.

Bronchial Neoplasms↗
PubMedDate not supplied

[True and false problems in surgery of pulmonary aspergilloma. Study of 220 cases (author's transl)].

Different problems involved in the surgery of 220 cases of pulmonary aspergilloma are analyzed. The operatory blood loss, which was more abundant than usual, did not bring about any complication. The authors believe that pleural cavities were observed for only 6% of the partial excisions, probably because of the complementary thoracoplasties they performed. The true problem is raised by the patients suffering from respiratory failure for whom techniques of direct approach are the only solution.

Aspergillosis, Allergic Bronchopulmonary↗
PubMedDate not supplied

[Use of a laser beam (YAG) with a flexible fiber for endoscopic treatment of some broncho-tracheal lesions (author's transl)].

For several years we employed an endoscope permitting electro-coagulation in the treatment of some broncho-tracheal lesions and were able to observe the limits and accidents involved in this method. When compared with clinical results (work of Freche in ORL, laser CO2) and after experimental research, the use of a flexible laser beam (YAG) seems to bring about a noteworthy increase in therapeutic possibilities. This flexible fiber beam could easily be used by some medico-surgical teams who already possess appropriate of easily adaptable endoscopic equipment. Clinical studies are in progress.

Animals↗
PubMedDate not supplied

[Neurogenic endothoracic tumours (author's transl)].

123 nervous thoracic tumours have been operated without immediate postoperative death. From 1964, 86 are the subject of a new study. 80 % were situated in the posterior gutter and were involving the sympathetic chain and intercostal-nerves. 20 % have an ectopic parietal, lateral, mediastinal or pulmonary site. 95 % are benign tumours, of which 59 % are schwannomas, 20 % neuro-fibromas, 17 % ganglio-neuromas. The conditions of their excision are discussed particularly relating to stud collar tumours which have an extension in or towards the intervertebral foramen, as well as endo-thoracic Recklinghausen tumours, numbering seven. The two patients operated of malignant tumours (schwanno-sarcomas) died of recurrency within 18 months.

Adolescent↗