A research group led by Professor Morihiro Ito of Chubu University, in collaboration with Mie University, has developed a technology to enhance the resuscitation effect of cardiac massage when cardiopulmonary arrest occurs during treatment by inserting a catheter through a blood vessel.
In recent years, there have been remarkable advances in examination and treatment methods in which a thin tubular catheter with a diameter of about 1 to 2 mm is inserted from a blood vessel such as the heart, brain, or liver.However, in the meantime, not a few fatal arrhythmias and cardiopulmonary arrest occur.For fatal arrhythmias, defibrillation is performed to quickly return to normal with electrical stimulation or drugs, and for cardiopulmonary arrest, heart massage is performed to compress the chest.Catheter treatment cannot be interrupted during the massage, and both are performed at the same time.
The catheter table shows the vascular structure inside the patient in detail, so it is sandwiched between X-ray devices at the top and bottom.Since this X-ray device has the shape of the alphabet C (C-arm type), the catheter table is fixed only on one side (cantilever structure).Therefore, it bends up and down during cardiac massage.The research team believed that some of the hand-pressing force during cardiac massage was used to bend the table and not enough for the essential massage.
This time, we devised a method to prevent the table from bending up and down by slightly shifting the non-fixed side of the table from the fixed position of the X-ray device and attaching a stabilizing rod underneath to fix it.The results of the experiment showed that the quality of chest compression was almost good when the stabilizing rod was attached.The deflection of the table was 0 mm and the compression depth increased to an average of 47.3 mm.The decrease in deflection and the increase in compression depth were almost the same.
Based on this result, he said that he would propose a method to suppress the deflection of the catheter table with a stabilizing rod when the patient has cardiopulmonary arrest during cardiac catheterization / treatment.
