Transpulmonary thermodilution volumetry is invasive method of central hemodynamic monitoring which allows us to determine volumetric characteristics of heart, volume of blood in thoracic cavity and amount of liquid in intersticium of lungs. The method is based on principle of dilution of thermal indicator. Transpulmonary thermodilution is complete alternative to blood circulation routine monitoring (Swan-Ganz) in a number of cases. It enables anesthesiologist to react as quickly as possible to changes of thermodynamic parameters and to minimize probability of mistake. All above-mentioned will considerably reduce intra and post operation mortality during large-scale operation on body organs of abdominal cavity. Our experience of using transpulmonary thermodynamics includes inspection of 97 patients. The given method is less invasive in comparison with former similar methods.