[Surgical treatment of primary malignant tumors of the trachea].

The authors have performed 18 circular resections of the trachea (CRT) for adenocystic cancer and typical carcinoid. In 10 of these patients more than 5 cm of the tracheal segment were ablated. Postoperative radiotherapy was made on 8 patients with adenocystic cancer with lengthy CRT. Immediate and long-term results were good that allowed the authors to recommend a single-stage circular resection of the trachea in treatment of high differentiated forms of cancer.

[The potential of surgical and bronchoscopic treatment of idiopathic scarry stenoses of the trachea].

Tracheolaryngeal resection is indicated for treatment of idiopathic scarry stenosis of the trachea with destruction of the cartilaginous tracheal semi-rings and cricoid cartilage. The proximity of anastomosis to the vocal folds does not influence the function of the vocal folds, if all technical peculiarities of the operation are observed. The bronchoscopic elimination of the scarry stenosis using laser dissection of the fibrous tissue, bougieurage and temporary endoprosthesis with a silicon T-shape stent is indicated in case of the saved integrity of the cartilaginous carcass of the trachea and larynx.

[Recognition algorithm in electrocardiographic syndrome of atrial hypertrophy]. / Algoritm raspoznavaniia élektrokardiograficheskogo sindroma gipertrofii predserdii.

A system was developed for automatic ECG analysis, which involved a screening program and algorithms for syndrome ECG diagnosis. The principles for synthesizing algorithms for syndrome diagnosis are exemplified by the decision rule of identifying a ECG syndrome of atrial hypertrophy. The specificity of the proposed algorithm was more than 90%. Severe left and right atrial and moderate right atrial hypertrophies were well recognized. The findings suggest that the developed rules might be useful in the system of automatic ECG analysis.