The Royal Thai Navy Third Area Command dispatched the helicopter with doctors from Vachira Phuket Hospital on board after receiving a message at 12:30pm, reported the Phuket office of the Public Relations Department (PR Phuket).
The 62-year-old man, Phuwanon Iamchan, had suffered a "drowning accident" while diving with relatives at Koh Yang, northwest of Koh Lipe, said the report.
“The patient was unconscious, unresponsive and in cardiac arrest, and was rushed to the Koh Lipe Health Promoting Hospital.
“Nurses and the medical team on Koh Lipe performed CPR for more than one hour until the patient’s heart started beating again,” the report said.
“The medical team requested helicopter support from the Third Area Command to transport the patient back to the mainland for treatment,” the report added.
The Third Area Command, based at Cape Panwa, on Phuket’s east coast, dispatched a S-76B transport helicopter from its Special Aviation Division with a medical team from Vachira Phuket Hospital on board.
The helicopter landed at Koh Lipe at 3pm and returned to Phuket to land at Phuket Rajabhat University in Rassada, north of Phuket Town, at 4:35pm.
At last report Mr Phuwanon was alive and under care at Vachira Phuket Hospital in Phuket Town.