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Diving related illnesses

John Henry McDermott, Charles Reynard, Jonathan Perry, James W Dear, Fran Child, Rachel Jenner
BACKGROUND: Recent public health strategies have contributed towards a significant reduction in the incidence of carbon monoxide (CO) poisonings. When events do occur, symptoms can vary dramatically depending on the carboxyhaemoglobin level and individual factors. Most reports to date focus on individual cases or larger retrospective reviews of diverse cohorts. There are very few reports of CO exposure related to scuba diving activities. METHODS: We describe the clinical sequelae experienced by 10 children who were exposed to CO during a scuba diving lesson...
March 8, 2018: Clinical Toxicology
Olivier Castagna, Jacques Regnard, Emmanuel Gempp, Pierre Louge, François Xavier Brocq, Bruno Schmid, Anne-Virginie Desruelle, Valentin Crunel, Adrien Maurin, Romain Chopard, David Hunter MacIver
BACKGROUND: Immersion pulmonary edema is potentially a catastrophic condition; however, the pathophysiological mechanisms are ill-defined. This study assessed the individual and combined effects of exertion and negative pressure breathing on the cardiovascular system during the development of pulmonary edema in SCUBA divers. METHODS: Sixteen male professional SCUBA divers performed four SCUBA dives in a freshwater pool at 1 m depth while breathing air at either a positive or negative pressure both at rest or with exercise...
January 3, 2018: Sports Medicine—Open
Danilo Cialoni, Massimo Pieri, Costantino Balestra, Alessandro Marroni
Introduction: The popularity of SCUBA diving is steadily increasing together with the number of dives and correlated diseases per year. The rules that govern correct decompression procedures are considered well known even if the majority of Decompression Sickness (DCS) cases are considered unexpected confirming a bias in the "mathematical ability" to predict DCS by the current algorithms. Furthermore, little is still known about diving risk factors and any individual predisposition to DCS. This study provides an in-depth epidemiological analysis of the diving community, to include additional risk factors correlated with the development of circulating bubbles and DCS...
2017: Frontiers in Psychology
John Lippmann, David McD Taylor, Christopher Stevenson, Jo Williams, Simon J Mitchell
INTRODUCTION: This is the second report based on a survey of Divers Alert Network Asia-Pacific (DAN AP) members who dive with cardiovascular and respiratory conditions and diabetes. It examines the medical management of the divers' conditions, any diving modifications used to mitigate the risk and outcomes. METHODOLOGY: An online cross-sectional survey was sent to 833 divers who had declared a targeted medical condition when applying for DAN AP membership between July 2009 and August 2013...
September 2017: Diving and Hyperbaric Medicine: the Journal of the South Pacific Underwater Medicine Society
Ran Arieli
Decompression illness (DCI) occurs following a reduction in ambient pressure. Decompression bubbles can expand and develop only from pre-existing gas micronuclei. The different hypotheses hitherto proposed regarding the nucleation and stabilization of gas micronuclei have never been validated. It is known that nanobubbles form spontaneously when a smooth hydrophobic surface is submerged in water containing dissolved gas. These nanobubbles may be the long sought-after gas micronuclei underlying decompression bubbles and DCI...
2017: Frontiers in Physiology
Devon M Livingstone, Kristine A Smith, Beth Lange
Scuba diving is a popular recreational and professional activity with inherent risks. Complications related to barotrauma and decompression illness can pose significant morbidity to a diver's hearing and balance systems. The majority of dive-related injuries affect the head and neck, particularly the outer, middle and inner ear. Given the high incidence of otologic complications from diving, an evidence-based approach to the diagnosis and treatment of otic pathology is a necessity. We performed a systematic and comprehensive literature review including the pathophysiology, diagnosis, and treatment of otologic pathology related to diving...
June 2017: Diving and Hyperbaric Medicine: the Journal of the South Pacific Underwater Medicine Society
Szymon Olędzki, Andrzej Wojtarowicz, Edyta Płońska-Gościniak, Maciej Lewandowski, Jarosław Gorący
Patent foramen ovale (PFO) is thought to be a risk factor for decompression illness (DCI). Catheter-based closure procedure reduces the risk of DCI in selected scuba divers with PFO. Major complication of invasive approach are rare, minor, especially heart rhythm disturbances are reported relatively often. We describe a case of 41-year-old diver, who underwent PFO closure due to recurrent DCI events. Afterward, he experienced no DCI symptoms; however, he complained about feeling of the heart beating during a submersion...
September 2017: Annals of Noninvasive Electrocardiology
Mehmet Ergen, Atilla Uslu, Ozlem Caglar, Sukriye Akca-Kalem, Maide Cimsit, Hakan Gurvit
OBJECTIVE: We investigated whether professional air diving with no decompression illness causes any long-term changes in cognitive functions. METHODS: The all-male participants consisted of 18 healthy control (HC) volunteers and 32 divers. Divers were divided into two subgroups as moderate exposure group, Divers-I (DI) and extensive exposure group, Divers-II (DII). Participants were administered a comprehensive neuropsychological battery and event-related potentials (ERPs) were recorded while they performed auditory oddball task and visual continuous performance test (CPT)...
April 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
Pierre Louge, Mathieu Coulange, Frederic Beneton, Emmanuel Gempp, Olivier Le Pennetier, Maxime Algoud, Lorene Dubourg, Pierre Naibo, Marion Marlinge, Pierre Michelet, Donato Vairo, Nathalie Kipson, François Kerbaul, Yves Jammes, Ian M Jones, Jean-Guillaume Steinberg, Jean Ruf, Régis Guieu, Alain Boussuges, Emmanuel Fenouillet
Immersion pulmonary edema (IPE) is a misdiagnosed environmental illness caused by water immersion, cold, and exertion. IPE occurs typically during SCUBA diving, snorkeling, and swimming. IPE is sometimes associated with myocardial injury and/or loss of consciousness in water, which may be fatal. IPE is thought to involve hemodynamic and cardiovascular disturbances, but its pathophysiology remains largely unclear, which makes IPE prevention difficult. This observational study aimed to document IPE pathogenesis and improve diagnostic reliability, including distinguishing in some conditions IPE from decompression sickness (DCS), another diving-related disorder...
June 2016: Medicine (Baltimore)
Kai Victor Hansen
Purpose - With the growing older population, the increasing interest in the elderly's eating habits and the meal situation go hand in hand and are challenges in many countries, including Norway. The purpose of this paper is to investigate, part of an ongoing project in Norway, address four categories of elderly people: healthy elderly (HE), old people with home care, elderly living in institutions, and critical ill elderly. Design/methodology/approach - The aim of this study was to investigate related articles concerning food and the elderly in the four identified categories, defining six different meal experience categories to disclose possible gaps in the research in terms of core product, room, personal service, company, atmosphere, and management control systems (MCS)...
May 9, 2016: International Journal of Health Care Quality Assurance
Pashtun Shahim, Per Arnell, Andreas Kvarnström, Anders Rosén, Daniel Bremell, Lars Hagberg, Kaj Blennow, Henrik Zetterberg
INTRODUCTION: Decompression sickness (DCS) may cause a wide variety of symptoms, including central nervous system (CNS) manifestations. The main objective of this study was to examine whether DCS is associated with neuronal injury, and whether DCS could result in altered amyloid metabolism. METHODS: Seven, male divers with DCS and seven age-matched controls were included in the study. All the divers were treated by recompression but the controls did not receive hyperbaric oxygen...
December 2015: Diving and Hyperbaric Medicine: the Journal of the South Pacific Underwater Medicine Society
Tom Cpm Kemper, R Rienks, P Jam van Ooij, R A van Hulst
INTRODUCTION: Cutaneous decompression sickness (DCS) is often considered to be a mild entity that may be explained by either vascular occlusion of skin vessels by bubbles entering the arterial circulation through a right-to-left shunt or bubble formation due to saturated subcutaneous tissue during decompression. We propose an alternative hypothesis. METHODS: The case is presented of a 30-year-old female diver with skin DCS on three separate occasions following relatively low decompression stress dives...
June 2015: Diving and Hyperbaric Medicine: the Journal of the South Pacific Underwater Medicine Society
Peter Germonpré
Diving medicine is a peculiar specialty. There are physicians and scientists from a wide variety of disciplines with an interest in diving and who all practice 'diving medicine': the study of the complex whole-body physiological changes and interactions upon immersion and emersion. To understand these, the science of physics and molecular gas and fluid movements comes into play. The ultimate goal of practicing diving medicine is to preserve the diver's health, both during and after the dive. Good medicine starts with prevention...
June 2015: Diving and Hyperbaric Medicine: the Journal of the South Pacific Underwater Medicine Society
Laura A Thompson, Tracy A Romano
While it is widely known that marine mammals possess adaptations which allow them to make repetitive and extended dives to great depths without suffering ill effects seen in humans, the response of marine mammal immune cells to diving is unknown. Renewed interest in marine mammal dive physiology has arisen due to reports of decompression sickness-like symptoms and embolic damage in stranded and by-caught animals, and there is concern over whether anthropogenic activities can impact marine mammal health by disrupting adaptive dive responses and behavior...
2015: Frontiers in Physiology
Nataša Janev Holcer, Pavle Jeličić, Maja Grba Bujević, Damir Važanić
Floods can pose a number of safety and health hazards for flood-affected populations and rescuers and bring risk of injuries, infections, and diseases due to exposure to pathogenic microorganisms and different biological and chemical contaminants. The risk factors and possible health consequences for the rescuers involved in evacuation and rescuing operations during the May 2014 flood crisis in Croatia are shown, as well as measures for the prevention of injuries and illnesses. In cases of extreme floods, divers play a particularly important role in rescuing and first-response activities...
March 2015: Arhiv za Higijenu Rada i Toksikologiju
Sandra Wenneberg, Per Arnell, Nicklas Oscarsson, Hans Örnhagen
During the period 2005 to 2012, a total of 340 consultations (phone calls and/or visits) regarding possible decompression illness were recorded at the two hospitals with recompression chambers in the Västra Götaland region, Sweden. An analysis of the data showed a trend towards fewer consultations and recompression treatments. A similar trend has been observed in many other countries. Possible reasons for this reduction in the number of cases are discussed. Most of the patients only present relatively mild signs and symptoms at the time of consultation...
September 17, 2014: Läkartidningen
Jennifer Hall
Decompression Illness includes both Decompression Sickness (DCS) and Pulmonary Overinflation Syndrome (POIS), subsets of diving-related injury related to scuba diving. DCS is a condition in which gas bubbles that form while diving do not have adequate time to be resorbed or "off-gassed," resulting in entrapment in specific regions of the body. POIS is due to an overly rapid ascent to the surface resulting in the rupture of alveoli and subsequent extravasation of air bubbles into tissue planes or even the cerebral circulation...
November 2014: Hawai'i Journal of Medicine & Public Health: a Journal of Asia Pacific Medicine & Public Health
Rita Bast-Pettersen, Øivind Skare, Karl-Christian Nordby, Marit Skogstad
OBJECTIVES: Our main aim was to study the long-term neuropsychological effects of non-saturation diving. Further, we aimed to investigate whether neuropsychological performance was predictive of subsequent diving accidents and diving status. METHODS: In this prospective longitudinal study, we enrolled 50 male diving students (mean age 25.3 years) at a diving school and followed them up six and 12 years later (43 and 37 divers, respectively). At each wave of the study, divers completed a comprehensive neuropsychological test battery and answered questionnaires on cumulative number of dives, incidents of decompression illness (DCI) and professional diver status...
August 2015: International Archives of Occupational and Environmental Health
Ruchit Nagar, Qingyu Yuan, Clark C Freifeld, Mauricio Santillana, Aaron Nojima, Rumi Chunara, John S Brownstein
BACKGROUND: Twitter has shown some usefulness in predicting influenza cases on a weekly basis in multiple countries and on different geographic scales. Recently, Broniatowski and colleagues suggested Twitter's relevance at the city-level for New York City. Here, we look to dive deeper into the case of New York City by analyzing daily Twitter data from temporal and spatiotemporal perspectives. Also, through manual coding of all tweets, we look to gain qualitative insights that can help direct future automated searches...
2014: Journal of Medical Internet Research
Costantino Balestra
No abstract text is available yet for this article.
September 2014: Diving and Hyperbaric Medicine: the Journal of the South Pacific Underwater Medicine Society
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