[Effect of aortic clamping on hemodynamics at reconstruction of the thoracoabdominal aorta]. / Vliianie perezhatiia aorty na gemodinamiku pri rekonstruktsii grudnoi i briushnoi aorty.

This paper describes an experience with monitoring and computerized follow up of the hemodynamic status in 60 patients at and right after reconstruction of the thoracoabdominal aorta. In addition to the routine control, measurements were made of the pressure in the large vessels and cavities of the heart, duration of each heart contraction and CI. The following parameters were computed automatically: the status of the ventricles for each heart contraction, resistance of the greater end pulmonary circulation, elasticity of the arterial, venous, pulmonary arterial and pulmonary venous reservoirs, also for each cardiac cycle. At the generally accepted monitoring the hemodynamic responses to the surgeon's manipulations on the aorta appear smoothed or are not visualized at all. The control of each heart contraction reveals the responses to application of the clamp and its removal from the aorta, with their hemodynamic significance being not questionable. Aortic clamping and clamp removal from the aorta are associated with the generalized response of the regulatory systems of the body. The slow and thoroughly controlled aortic clamping and graded, controlled blood flow restoration due to clamp removal as well as the use of sodium nitroprusside (trimetafan or isofluran are preferable) allow to avoid an abrupt stroke load of the left ventricle of the heart and, respectively, the generalized response of the regulatory systems of the body.

[Hemodynamic disorders in patients with ischemic heart disease after aortocoronary bypass during transportation from the operating room to intensive care units and their prevention]. / Gemodinamicheskie narusheniia, voznikaiushchie u bol'nykh s ishemicheskoi bolezn'iu serdtsa posle aortokoronarnogo shuntirovaniia pri transportirovke iz operatsionnoi v otdelenie intensivnoi terapii, i ikh profilaktika.

Changes in homeostasis of 33 coronary patients after aortocoronary shunting, developing in the course of transportation of the patients to reanimation department, were studied. The causes of some shifts in the homeostasis were revealed. Methods for the prevention and therapy of these disorders were developed.