METHOD OF ASSESSING READINESS FOR MEDICAL EVACUATION OF A PATIENT IN CRITICAL CONDITION Russian patent published in 2023 - IPC A61B5/02 A61B5/145 A61B5/1455 

FIELD: medicine, resuscitation and intensive care.

SUBSTANCE: invention can be used to ensure the safe medical evacuation of patients of all age groups and the choice of a medical evacuation strategy. The age of the patient is taken into account, the following is determined: the sum of the points of the total dose of administered catecholamines on the VIS scale, the tension of carbon dioxide in arterial blood (PaCO₂ mm Hg), systemic saturation of venous blood (SvO₂%), heart rate (HR), the need for extracorporeal membrane oxygenation (ECMO), respiratory ratio (PaO₂/FiO₂). If the patient is to be medically evacuated by plane, the PaO₂/FiO₂ indicator is multiplied by a correction factor of 0.75. Further, if the patient's weight is less than 10 kg, the heart rate is multiplied by a correction factor of 0.65. The results are then correlated with cut-off point PaO₂/FiO₂ less than or equal to 110, age greater than or equal to 65, VIS greater than or equal to 4, PaCO₂ greater than or equal to 55, SvO₂ less than or equal to 60, heart rate greater than or equal to 127, ECMO. If the result is identical to "Yes", the value is 1, if the result is identical to "No", the value is 0. Further, the obtained values of the indicators are multiplied by the regression coefficient on a 100-point scale in accordance with Table 2. The sum of the obtained values of all indicators in points is determined. If the score is less than 30, the condition corresponds to compensated, and the patient can be evacuated. If the score is from 30 to 70 points, the condition corresponds to subcompensated, and the patient can be evacuated only in conditions of ongoing intensive care. If the total score is more than or equal to 70, the condition corresponds to decompensated, and the patient cannot be evacuated until the condition stabilizes to the level of compensated or subcompensated; if the total score is less than 70 points, against the background of ongoing intensive care, including the use of ECMO, the question of the possibility of performing medical evacuation is considered again, but not earlier than 1 hour later.

EFFECT: invention makes it possible to evaluate the transportability of critically ill patients of all age groups, including those using ECMO technology and in air ambulance conditions with changing dynamic barometric pressure, and to select the optimal medical evacuation strategy.

1 cl, 2 ex, 2 tbl