This poor cat got stuck between the sliding doors and the glass wall. Then it got worse, and he passed out. Have lost consciousness the cat may stop breathing, to stop the heart.
Without immediate intensive care, your pet will die. To save him, perform CPR and administer artificial respiration. I am glad that the accident happened near the veterinary clinic. The doctor knew what to do. Chest compressions are done in parallel with artificial respiration.
Press your thumb into one side of the sternum. Other fingers place from the other side. If the cat shows no signs of life, continue CPR for 30 minutes.