[Options for remodeling of the right ventricular function during pneumonectomy].

UNLABELLED: The aim of the study---a comprehensive assessment of haemodynamic alterations during pneumonectomy using pulmonary arterial volumeter (PAV) opportunities. MATERIALS AND METHODS: 72 patients were included in the study, (the average age - 51 +/- 3,8 years, body weight - 68 +/- 7 kg), who underwent pneumonectomy about lung tumors under general anesthesia with separate ventilation (on indications - jet high-frequency ventilaton).

[Postpneumonectomy syndrome: several new anesthesiological and pathophysiological aspects]. / Postpnevmonéktomicheskii sindrom: nekotorye novye anesteziologicheskie i patofiziologicheskie aspekty problemy.

As a result of 10-year investigations a concept of postpneumonectomy syndrome (PPS) has been defined as a combination of acute respiratory disturbances due to alteration of filtration and absorption functions of the lungs along with systolic and diastolic right heart dysfunction. The aim of the study was to identify the details of PPS pathogenesis dependent on the initial right chamber pressure levels and a search for probable approaches to PPS correction. The study was carried out on 26 patients subject to pneumonectomy. Central hemodynamics along with filtration and absorption lung functions and changes in extravascular lung water (EVLW) have been studied. According to the data obtained, initial pulmonary hypertension definitely plays a certain part in PPS pathogenesis; upon the administration of a Ca-blocker finoptin, the right heart condition was characterized by a significant increase in EF and EDV, followed by an increase in blood flow and a drop an PCWP; all the patients have experienced an increase in EVLW up to 7-8 ml/kg. Though altered right heart diastolic function may play a key role in hemodynamic and gas exchange disturbances, the application of Ca-blockers is believed to be a possible approach to the correction of the above deviations.

[The choice of surgical intervention in mitral defects]. / O vybore operativnogo vmeshatel'stva pri mitral'nykh porokakh.

Under analysis were clinical data and roentgencardiometric parameters in 181 patients with mitral diseases. The most informative roentgencardiometric parameters were established and a quantitative diagnostic algorithm was created with the help of a mathematical method for the choice of the operative procedure. The correct choice was made in 79% of the cases. The diagnostic algorithm developed is thought to be most expedient for use in patients with combined mitral defects. The procedure of quantitation of cardiometric parameters and summing their diagnostic coefficients is simple and not time-taking.