Equipment Japanese man dies while diving in Bali due to equipment malfunction

This Thread Prefix is for incidents caused by equipment failures including personal dive gear, compressors, analyzers, or odd things like a ladder.

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Rcyr

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(Google Translation from Sankei Shinbun Japanese newspaper -couldn’t find any English language news mentioning this incident)

On May 29th, a Japanese man (73) lost consciousness in the ocean while diving off the coast of Bali, Indonesia, and was confirmed dead at the hospital where he was taken. Local police announced this on the 1st. He had reportedly informed his instructors of a malfunction in his equipment while diving.

According to the police, the man was Abiko Naoki. The instructor who was diving with him tried to bring him to the surface by replacing his own equipment, but he lost consciousness halfway through. Abiko had more than 200 dive experiences. (Kyodo News)

 
Some more info from Yahoo News (Google translation):

[Jakarta Jiji Press] On May 29th, a Japanese man, Abiko Naoki (73), died while diving off the coast of Bali, Indonesia.

He was reportedly diving with his instructor and wife about 70 meters off Amed Beach in eastern Bali.

According to local media, Abiko had dived to a depth of about 20 meters on the 29th, complained to his instructor that something was wrong, and lost consciousness on the way back to the surface. The instructor performed life-saving measures on the boat and took him to hospital, but he was confirmed dead the same day. Abiko is believed to be a resident of Gifu Prefecture.

 
(google translation from Indonesian of the police report - more details: 2nd dive of day, 200+ dives, possible regulator malfunction)

Japanese foreigner dies while diving on Amed beach​

Head of Public Relations of the Bali Police, Commissioner Pol Jansen Avitus Panjaitan SIK, MH, confirmed that there was an incident where a foreigner from Japan died while diving at Amed Abang beach and was handled by the Karangasem Police, Sunday 2-6-2024.

The victim is a foreigner from Japan. Abiko Naoki, 74 year old man, stayed at the Seamount Amed Abang Karangasem Hotel.
According to witnesses, namely;
1. an.: Tomoko Abiko (VICTIM'S WIFE), foreigner from Japan, 68 year old woman, staying at the Seamount Amed Abang Hotel Karangasem.
2. an. Nakamatsu Jun, foreigner from Japan, 51 year old male, works as Dive Instructor at Bintang Dive, residence address is Mertasari Culik.

According to witnesses, the incident occurred on Wednesday 29 May 2024 at 09.40 WITA. The victim, along with Witness 1 and Witness 2, left Bintang Dive Shop to go to Melasti Beach for the first diving session. At around 09.55 WITA the victim and Witnesses 1 and 2 dived to a depth of approximately 20 meters at a distance of approximately 70 meters from the beach. rest at Bintang Dive Shop for 1 hour 51 minutes by drinking only water.

At around 12.20 WITA, the victim together with Witness 1 and Witness 2 returned to dive at the Pyramid Divesite using a traditional boat driven by I Wayan Meta. At around 12.29 WIT, the victim together with Witnesses 1 and 2 went down into the sea, at a depth of 20 meters at a distance of 70 meters from the shore, during the dive for approximately 28 minutes. The victim gave a code to Witness 2 that there was a problem with the regulator.
Next, Witness 2 replaced the victim's regulator while carrying the victim up to the surface of the sea, but at a depth of 10 meters the victim was already unconscious, then the victim was put on the boat, when he got to the boat the victim was given breathing assistance but there was no response from the victim, he was then taken to land and given help. again but the victim still did not respond, then the victim was taken to the Bali Sehat Clinic, when he arrived at the clinic the victim was unconscious and was examined by the Medical Team, Dr. Ni Luh Indah Ratna Sukarni, S. Ked (Physician on duty at the Bali Sehat Clinic) and the victim were declared dead at 13.45 WITA.
Based on an examination from the Medical Team, Dr. Ni Luh Indah Ratna Sukarni, S. Ked (Physician on duty at Bali Sehat Clinic):
1. The victim arrived unconscious.
2. No pulse.
3. Pupils dilate.
4. While breathing assistance was being carried out, the victim vomited fluid.
5. There are blue marks on the corpse, suspected of being decompression.
6. No signs of violence or injuries were found.

Upon hearing the report from the local village Bhabinkamtibmas, the Karangasem Police Polairud Sat immediately went, secured and processed the crime scene, examined witnesses and contacted the Japanese Consulate.

From the results of the examination, the victim's wife, who was also a witness to the incident, accepted the victim's death and considered the incident purely an accident and did not sue or suspect any party regarding the victim's death.
The victim's wife refused to carry out a post-mortem (autopsy) and the victim's wife made a statement refusing the autopsy.
With the approval of the wife and family, the victim's body was referred to the Amlapura District Hospital and deposited in the mortuary.


KBP Jansen concluded from the statements of the witnesses and the medical team who treated the victim that the death of the Japanese foreigner an. Abiko Naoki's diving at Amed beach was purely an accident, moreover the victim was very experienced because he had done 215 dives and had DEEPDIVE qualifications and the victim had also dived in the Amed area before. The lid.
 
Wow. So much going on here. First he signals that his reg didn't work but the instructor donated his. Then you see that the med staff considers dci because of the bruising. At first I thought he might have stroked out from an embolism but then you read about the wife's disposition and declination of an autopsy. I would like to think she wants his and her souls to be at peace but I've watched too much TV to flow with that.

Either way, go with God, brudda.
 
Sad, as always.

It'd be interesting to see if the regulator checked out and if the air was clean. If so, I'm thinking a medical event that made it feel hard to breathe. The DCI might be from a rapid ascent?

Question for the dive medicos: If you stop breathing underwater (respiratory arrest, not breathholding) and ascend, would that slow the removal of N from the blood (and thus tissues) enough to cause DCI?
 
If so, I'm thinking a medical event that made it feel hard to breathe. The DCI might be from a rapid ascent?
That was my immediate thought.

A person having a medical event that interferes with circulation will often get the sense that the regulator is not working. It happened to my nephew's mother-in-law. An experienced diver, she suddenly discarded her regulator and began a sprint to the surface. Yes, she had DCI because of that breath-holding sprint. The autopsy showed she had not only had a heart attack during the dive, it suggested she had had another one in the days before the dive.
 
I read that line as meaning the bruising was the result of chest compressions, but it was mistakenly written in the news report as decompression. But DCI from a rapid ascent caused by either an equipment issue or a medical issue also makes a lot of sense, and fits with a lot of the DAN incident data.
 
Seems premature for this thread title to conclude that this tragic death was due to an equipment malfunction.
 

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