Hypoxic syncope in a competitive breath-hold diver with elevation of the brain damage marker S100B.
Linér, Mats LU and Andersson, Johan LU
(2009)
In Aviation, Space and Environmental Medicine
80(12).
p.1066-1068
- Abstract
- INTRODUCTION: Competitive breath-hold divers can accomplish previously unbelievable performances; e.g., the current world record for apnea during rest ("static apnea") is 11 min 35 s. However, whether such performances are associated with a risk for hypoxic brain damage has not been established. CASE REPORT: A breath-hold diver's competitive performance resulted in a loss of consciousness, after which he was subjected to a medical examination by the event physician. Blood samples were collected for analysis of the brain damage marker S100B in serum. The S100B in serum was 0.100 microg x L(-1) in the blood sample collected 15 min after the loss of consciousness. At 1 and 5 d after the incident it was 0.097 microg x L(-1) and 0.045 microg x... (More)
- INTRODUCTION: Competitive breath-hold divers can accomplish previously unbelievable performances; e.g., the current world record for apnea during rest ("static apnea") is 11 min 35 s. However, whether such performances are associated with a risk for hypoxic brain damage has not been established. CASE REPORT: A breath-hold diver's competitive performance resulted in a loss of consciousness, after which he was subjected to a medical examination by the event physician. Blood samples were collected for analysis of the brain damage marker S100B in serum. The S100B in serum was 0.100 microg x L(-1) in the blood sample collected 15 min after the loss of consciousness. At 1 and 5 d after the incident it was 0.097 microg x L(-1) and 0.045 microg x L(-1) respectively. DISCUSSION: The elevated level of S100B, close to the upper reference limit (0.105 microg x L(-1)) indicates that the incident affected the integrity of the central nervous system. Even though this case does not establish that hypoxic brain damage is an inherent risk with loss of consciousness in competitive breathhold diving, the observation raises concerns. We suggest that it should be considered that repetitive exposures to prolonged apneas leading to severe hypoxia may be associated with negative long-term effects. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1523393
- author
- Linér, Mats
LU
and Andersson, Johan
LU
- organization
- publishing date
- 2009
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Aviation, Space and Environmental Medicine
- volume
- 80
- issue
- 12
- pages
- 1066 - 1068
- publisher
- Aerospace Medical Association
- external identifiers
-
- wos:000272632400013
- scopus:77649209555
- ISSN
- 1943-4448
- DOI
- 10.3357/ASEM.2554.2009
- language
- English
- LU publication?
- yes
- id
- f73b48d5-4f50-45bc-add5-e97f03cfba4d (old id 1523393)
- alternative location
- http://www.ncbi.nlm.nih.gov/pubmed/20027857?dopt=Abstract
- date added to LUP
- 2016-04-01 11:43:59
- date last changed
- 2022-02-18 04:30:09
@article{f73b48d5-4f50-45bc-add5-e97f03cfba4d,
abstract = {{INTRODUCTION: Competitive breath-hold divers can accomplish previously unbelievable performances; e.g., the current world record for apnea during rest ("static apnea") is 11 min 35 s. However, whether such performances are associated with a risk for hypoxic brain damage has not been established. CASE REPORT: A breath-hold diver's competitive performance resulted in a loss of consciousness, after which he was subjected to a medical examination by the event physician. Blood samples were collected for analysis of the brain damage marker S100B in serum. The S100B in serum was 0.100 microg x L(-1) in the blood sample collected 15 min after the loss of consciousness. At 1 and 5 d after the incident it was 0.097 microg x L(-1) and 0.045 microg x L(-1) respectively. DISCUSSION: The elevated level of S100B, close to the upper reference limit (0.105 microg x L(-1)) indicates that the incident affected the integrity of the central nervous system. Even though this case does not establish that hypoxic brain damage is an inherent risk with loss of consciousness in competitive breathhold diving, the observation raises concerns. We suggest that it should be considered that repetitive exposures to prolonged apneas leading to severe hypoxia may be associated with negative long-term effects.}},
author = {{Linér, Mats and Andersson, Johan}},
issn = {{1943-4448}},
language = {{eng}},
number = {{12}},
pages = {{1066--1068}},
publisher = {{Aerospace Medical Association}},
series = {{Aviation, Space and Environmental Medicine}},
title = {{Hypoxic syncope in a competitive breath-hold diver with elevation of the brain damage marker S100B.}},
url = {{http://dx.doi.org/10.3357/ASEM.2554.2009}},
doi = {{10.3357/ASEM.2554.2009}},
volume = {{80}},
year = {{2009}},
}