Ocean safety advocates are working on ways to gather more data to determine why so many more visitors die snorkeling in Hawaii than local residents.

Dr. Philip Foti, an Oahu physician who specializes in pulmonary and internal medicine, is developing a 鈥済adget鈥 that will be able to test different types of snorkel tubes to see which ones create the most resistance while breathing through them.

He told an audience of lifeguards, government officials and others at a drowning-prevention conference Friday in Honolulu that snorkel companies have added new 鈥渄oodads鈥 to the tubes over the years 鈥 mostly aimed at keeping water out 鈥 but they may have unintended consequences.

Dr. Philip Foti discusses snorkeling-related drownings at the annual ocean safety conference in Honolulu, Friday. Nathan Eagle/Civil Beat

Foti was also concerned about the full-face snorkel masks that are now 鈥渁ll the rage.鈥 He called them a 鈥渞ecipe for disaster,鈥 noting the need to scrutinize this equipment as well.

鈥淚 am trying really hard to get a device that will allow us to be the filters of which snorkels to use and which snorkels not to use,鈥 he said. 鈥淲e need to find out how to test them and then what to do about protecting people from using them.鈥

Ralph Goto, retired administrator of Honolulu鈥檚 Ocean Safety and Lifeguard Services Division, said it鈥檚 important for first responders to obtain as much information as they can from each snorkeling-related drowning or near-drowning incident.

鈥淲e don鈥檛 have the solutions,鈥 he said. 鈥淏ut what we have collectively is the source to gather all that data.鈥

Hawaii鈥檚 visitor-drowning rate is 13 times the national average and was nearly 10聽times the rate of Hawaii residents from 2003 to 2012, with snorkeling by far the most common activity in which a fatal accident occurs. Nearly one tourist dies each week while engaged in common vacation activities like swimming, snorkeling, hiking and going on scenic drives.聽

From 2003 to 2012, state data shows 102 visitors drowned snorkeling, compared to 13 residents.

A man uses a full-face mask at Ahalanui Beach Park. Lifeguards said they’ve seen more people wearing this new type of mask. Nathan Eagle/Civil Beat

Carol Wilcox, a lifelong Hawaii resident and former lifeguard, almost became part of those statistics. She shared her 2004 near-drowning experience, which Foti said opened his eyes to additional factors that may contribute to drownings.

Wilcox had just flown back to Oahu after a trip to Canada when she decided to go snorkeling by the Outrigger Canoe Club in Waikiki.

She was making her way to the wind sock roughly 150 yards from shore when she started to have shortness of breath. She soon realized she had no strength in her arms to wave for help, so she began to kick her way back with her long fins.

Carol Wilcox discusses her near-drowning experience at the annual ocean safety conference. Nathan Eagle/Civil Beat

鈥淢y heartbeat sounded like a drum and pretty soon I couldn鈥檛 breathe,鈥 Wilcox said. 鈥淚 realized at that moment why lifeguards can miss the signs of drowning. A wave pushed me up onto the sand and I lost consciousness.鈥

A lone beachgoer that evening saw Wilcox and she was taken to the hospital.

Foti said he determined she had negative pressure pulmonary edema, which is caused by an upper airway obstruction generating enough pressure to pull fluid from the arteries that take blood to the lungs.

He and Wilcox question what role her snorkel played in the incident, since it was one with an apparatus attached to the top of the tube to keep water out, possibly restricting the flow of air. And they question the role of her recent air travel.

There are still many questions at this point, but Foti said additional data from first-responders and his device to measure snorkel tubes’ breathing resistance will help provide answers that could eventually be used to advise the public on what equipment is safest to use.

Rescue workers could easily gather more data than they currently do about snorkeling accidents, Ralph Goto said at the conference. Nathan Eagle/Civil Beat

Smoking, drinking and certain prescription pills could also make someone more susceptible to this condition, he said.

鈥淲e have a lot of work to do,鈥 Foti said.

He added that increasingly popular snorkeling masks that cover the entire face may present similar problems.

For starters, he said there is dead space ventilation in the device that seems greater than in the standard snorkel tube. That dead space can cause carbon dioxide buildup.

California resident Guy Cooper, whose wife drowned last year while snorkeling off the Big Island, has been trying to warn the public about the potential hazards of full-face masks like the one his wife was wearing.

Cooper has said the carbon dioxide buildup in the mask could cause someone to become disoriented or lose consciousness, not to mention other possible hazards such as its difficulty to quickly remove in an emergency.

Cooper鈥檚 advocacy prompted county officials on the Big Island, Maui, Kauai and Oahu to start keeping track of the type of snorkeling equipment that was worn in drowning.

鈥淵ou can鈥檛 interview the people who have had fatal drownings but we can interview the people who survive,鈥 Goto said. 鈥淚t鈥檚 important for us as first responders to get as much information as we can.鈥

Earlier in the day, ocean safety officials held a press conference to share information on public-service announcements that will be shown in hotel rooms for visitors to see.

Honolulu Emergency Services Director Jim Howe provides some of the details in this video below. Additional videos from the press conference can be found on Civil Beat’s YouTube page .

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