Abstract
Goal of study: to improve hemodynamics, respiratory exchange and metabolism of potential donor organs by using combination of Lthyroxin, triiodothyronine, methylprednisolone, desmopressin acetate and insulin. Material and Methods: The clinical study included 98 potential donors (PD) with confirmed diagnosis of brain death. Braindead PD were divided into two groups: the 1st group included 43 PD with traumatic brain injury; the 2nd group included 55 PD with a stroke. PD from the 1st and 2nd groups were divided into two subgroups: main subgroup (n=18 and n=30) included those who received Lthyroxine, triiodothyronine and dessom pressin orally; control subgroup (n=25 and n=25) included those who did not receive these drugs. Hemodynamics, electrolytes, biochemical parameters, respiratory exchange and free triiodothyronine and thyroxine in blood were determined during the study. Results and discussion : In the course of the intensive therapy in control subgroups of both groups of PD the doses of noradrenalin and dopamine were not changed. However, the doses of noradrenalin and dopamine were decreased significantly in main subgroups of both groups during the course of the hormone therapy. There were no significant changes in hemodynamics in PD from both control subgroups, whereas in main groups hemodynamics parameters were decreased due to hormone therapy. Significant changes of blood pressure were observed in the main subgroups. Despite exogenous administration, in the main subgroups T3 remained at the lower limit of norm, whereas T4 increased. Improved hemodynamics and gas exchange were revealed in PD following hormone therapy that was important for the blood flow in organs. Following transplantation, in recipients of organs from control subgroup of PD the rejections of the transplants were significantly more frequent than rejections of organs from PD which comprized the main subgroup receiving hormones. Conclusion. Hormone administration to braindead PD with confirmed brain death led to significantly reduced doses of noradrenalin and dopamine and improved hemodynamics and gas exchange parameters. Oral administration of thyroid and hypophisis hormones to PD with confirmed brain death seems feasible.
Highlights
В настоящее время трансплантация органов широко внедрена в клиническую практику [1]
Inclusion criteria were: age between 18 and 55 years, the absence of concomitant diseases of the cardiovascular system and thyroid gland, confirmed diagnosis of «brain death» [17], voluntary agreement of relatives to participate in the study
Donors of the 1st group were subdivided into two sub groups by simple randomization: main subgroup (n=18) included those potential donors (PD) who received L thyroxine sodium 200 mg/day, triiodothyronine hydrochloride 50 mg/day orally and dessompressin acetate 120 mcg/day orally; control subgroup (n=25) included PD who did not receive these drugs
Summary
В настоящее время трансплантация органов широко внедрена в клиническую практику [1]. Для обеспечения благоприятного исхода операции у реципиента не обходимо оптимизировать условия качественной подготовки потенциальных доноров с целью со хранения необходимой перфузии в пересаживае мых органах до, во время и после трансплантации. Кислотно щелочное состояние и водно электролитный баланс являют ся основными точками приложения интенсивной терапии потенциальных доноров с установленным диагнозом «смерть мозга». Основными причинами развития «смерти мозга» являются черепно мозговая травма, наруше ния мозгового кровообращения, постгипоксическое или постаноксическое повреждение ЦНС. В основе развития «смерти мозга» лежит отек и нарушения перфузии структур головного мозга [2]. Поврежде ние структур головного мозга потенциальных доно ров ведет к нарушению функционирования гипото ламо гипофизарной системы [3], при этом мы получаем истинный центральный гипотиреоз
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