<s>[INST] what is the treatment for people with a small hole in the heart, a friend  discovered it after diving which caused a lot of pain in the leg and had to spend some tine in a decompression chamber because of Decompresiion sickeness which turened out be caused due to a small in the heart [/INST] Hi Their understand your concern. I would like to tell you that your friend had an air embolism in his heart & is commonly found after scuba diving followed by some symptoms like Difficult breathing, chest pain, muscle or joint pains, low blood pressure etc. Hyperbaric Oxygen Therapy(Decompression Chamber) is the best treatment that can be given to treat Air Embolism. Hope this has answered your query. Kind Regards </s>