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Biomedical subjects

W Maassen

Publications and source records attributed to W Maassen.

At least 37 records · Page 2Linked to original sources
PubMed1980

The importance of histological classification and tumor staging for prognosis after resection of bronchial carcinoma.

Between 1962 and 1974, out of 642 patients operated on for bronchial carcinoma, 89% were resected and in 11% of the cases the operation was concluded as an exploratory thoracotomy. If the expansion of the tumor was limited, even undifferentiated carcinoma had a favorable prognosis. After 5 years 53% of the patients with the histological diagnosis of a squamous celll carcinoma, 46% of a small-cell carcinoma and 40% of an undifferentiated medium and large-cell carcinoma were alive, if the tumors belonged to the T1 stage. It is emphasized that strong selective preoperative criteria, including mediastinoscopy, are necessary.

Adenocarcinoma↗
PubMed1978

[Laryngeal release for tracheal resection (author's transl)].

Mobilization of the larynx resulting in a 2 to 2.5 cm gain of length can be used in tracheal resection as an alternative to more extensive procedures within the thorax with their specific complications. In the method of Dedo and Fishman the cranial insertions of the thyrohyoid muscle are resected, the thyrohyoid membrane is divided and the two horns of the thyrohyoid cartilage are cut. Difficulties in swallowing may persist for long periods of time but usually can be overcome. In the suprahyoideal method of Montgomery the cranial muscle-insertions at the hyoid are divided and the hyoid bone is transsected leaving the small and large horns. Disturbances of swallowing are not to be expected with this method. Likewise postoperative tube-feeding is not required. The suprahyoid method probably is to be preferred.

Humans↗
PubMed1975

[The transsternal and transpericardial approach for surgical treatment of fistulas of the main bronchus after pneumonectomy (author's transl)].

The management of bronchopleural fistula after lung resection is discussed. The transsternal and transpericardial approach for surgical treatment of fistulas of the main bronchus after pneumonectomy is described. In 4 cases of 2000 lung resections occurred a bronchopleural fistula after right pneumonectomy. In all cases the fistula was closed definitive. In one case developed a fistula between the pleural space and the oesophagus after operation.

Adult↗