Abstract：
INTRODUCTION:When a standard water-seal pleural drain unit (PDU) is used under hyperbaric conditions there are scenarios where excessive negative intrapleural pressure (IPP) and/or fluid reflux can be induced, risking significant morbidity. We developed and tested a pleural vacuum relief (PVR) device which automatically manages these risks, whilst allowing more rapid hyperbaric pressure change rates. METHODS:The custom-made PVR device consists of a one-way pressure relief valve connected in line with a sterile micro filter selected for its specific flow capacity. The PVR device is designed for connection to the patient side sampling port of a PDU system, allowing inflow of ambient air whenever negative pressure is present, creating a small, controlled air leak which prevents excessive negative pressure. The hyperbaric performance of a Pleur-Evac A-6000 intercostal drain was assessed with and without this added device by measuring simulated IPP with an electronic pressure monitor connected at the patient end of the PDU. IPP readings were taken at 10, 15, 20 and 30 cmH₂O of suction (set on the drain unit) at compression rates of 10, 30, 60, 80, 90 and 180 kPa·min⁻¹ to a pressure of 280 kPa. RESULTS:At any compression rate of > 10 kPa·min⁻¹, the negative IPP generated by the Pleur-Evac A-6000 alone was excessive and resulted in back flow through the PDU water seal. By adding the PVR device, the generated negative IPP remains within a clinically acceptable range, allowing compression rates of at least 30 kPa·min⁻¹ with suction settings up to -20 cmH₂O during all phases of hyperbaric treatment. CONCLUSIONS:The PDU PVR device we have developed works well, minimising attendant workload and automatically avoiding the excessive negative IPPs that can otherwise occur. This device should only be used with suction.
journal_name
Diving Hyperb Medjournal_title
Diving and hyperbaric medicineauthors
Gelsomino M,Tsouras T,Millar I,Fock Adoi
10.28920/dhm47.3.191-197subject
Has Abstractpub_date
2017-09-01 00:00:00pages
191-197issue
3eissn
1833-3516issn
2209-1491journal_volume
47pub_type
杂志文章abstract：:It has been shown that a single bout of exercise performed 20 hours prior to hyperbaric exposure reduces bubble formation and increases survival in rats. Heat shock proteins (HSPs) are stress proteins expressed in cells that are exposed to different stressors. HSPs are known to protect cells, by binding to proteins an...
journal_title：Diving and hyperbaric medicine
pub_type： 杂志文章
doi：
更新日期：2008-12-01 00:00:00
abstract：INTRODUCTION:We have previously shown that hyperbaric oxygen treatment (HBOT) increased insulin sensitivity in men who were obese or overweight, both with and without type 2 diabetes. The aim of this study was to test whether this insulin-sensitising effect is seen in hyperbaric air (HA). METHODS:Men with type 2 diabe...
journal_title：Diving and hyperbaric medicine
pub_type： 杂志文章,随机对照试验
doi：10.28920/dhm50.4.386-390
更新日期：2020-12-20 00:00:00
abstract：:Exposure to hyperoxia is associated with oxidative stress and is known to cause inflammation in the lung and the airways. Exhaled nitric oxide concentration (FENO) is a marker of some inflammatory processes in the lung and airways, and is reduced immediately after a single session of hyperbaric oxygen (HBO) exposure. ...
journal_title：Diving and hyperbaric medicine
pub_type： 杂志文章
doi：
更新日期：2009-06-01 00:00:00
abstract：INTRODUCTION:During a hyperbaric oxygen therapy (HBOT) session, every medical device that is used within the hyperbaric chamber is exposed to several hazards, including an increased ambient pressure and partial pressure of oxygen. In Europe, all medical devices marketed and/or sold for use in hyperbaric conditions must...
journal_title：Diving and hyperbaric medicine
pub_type： 杂志文章
doi：10.28920/dhm49.2.137-140
更新日期：2019-06-30 00:00:00
abstract：:Vomiting and aspiration of gastric contents into the airways and lungs is a common and well-known clinicopathological entity. This phenomenon might also occur in underwater diving, where it can lead to life-threatening or fatal situations. This article presents two incidents involving diving-related vomiting with asso...
journal_title：Diving and hyperbaric medicine
pub_type： 杂志文章
doi：10.28920/dhm48.1.36-39
更新日期：2018-03-31 00:00:00
abstract：INTRODUCTION:Scuba diving is a big part of the tourism sector in Malta, and all the cases of decompression illness (DCI)are treated within the single hyperbaric referral centre in the country. METHODS:This retrospective analysis reviews all the medical records of divers with DCI in Malta within the 30-year period betw...
journal_title：Diving and hyperbaric medicine
pub_type： 杂志文章
doi：10.28920/dhm49.3.161-166
更新日期：2019-09-30 00:00:00
abstract：INTRODUCTION:This study identified pre-existing medical conditions among scuba diving fatalities in Australia from 2001 to 2013, inclusive, and assessed whether these conditions likely contributed to the deaths. METHODS:The National Coronial Information System (NCIS) was searched for scuba diving-related cases during ...
journal_title：Diving and hyperbaric medicine
pub_type： 杂志文章
doi：10.28920/dhm50.2.98-104
更新日期：2020-06-30 00:00:00
abstract：:Cerebral arterial gas embolism (CAGE) from breath-holding or inadequate exhalation during ascent is a well-recognised complication of scuba diving. It does not usually occur with breath-hold (BH) diving in those with normal lungs, as the volume of gas in the lungs on surfacing cannot exceed what it was on leaving the ...
journal_title：Diving and hyperbaric medicine
pub_type：
doi：10.28920/dhm49.4.304-305
更新日期：2019-12-20 00:00:00
abstract：BACKGROUND AND AIMS:Severe decompression sickness (DCS) is a multi-organ injury. This study investigated the preventive effects of rosiglitazone on liver injury following rapid decompression in mice and examined the underlying mechanisms. METHODS:Mice were randomly divided into four groups: a control group, vehicle gr...
journal_title：Diving and hyperbaric medicine
pub_type： 杂志文章
doi：10.28920/dhm47.1.17-23
更新日期：2017-03-01 00:00:00
abstract：:Gas micronuclei are gas-filled voids in liquids from which bubbles can form at low gas supersaturation. If water is depleted of gas micronuclei, high gas supersaturation is required for bubble formation. This high gas supersaturation is required in part to overcome the Laplace pressure at the point of transition from ...
journal_title：Diving and hyperbaric medicine
pub_type： 信件
doi：10.28920/dhm49.1.64
更新日期：2019-03-31 00:00:00
abstract：:The South Pacific Underwater Medicine Society (SPUMS) diving medical for recreational scuba divers was last reviewed in 2011. From 2011 to 2019, considerable advancements have occurred in cardiovascular risk assessment relevant to divers. The SPUMS 48th (2019) Annual Scientific Meeting theme was cardiovascular risk as...
journal_title：Diving and hyperbaric medicine
pub_type： 指南
doi：10.28920/dhm50.3.273-277
更新日期：2020-09-30 00:00:00
abstract：:Decompression illness (DCI) is a syndrome with diverse clinical manifestations but in which cardiac symptoms are rare. In the presence of cardiac symptoms, the necessity to rule out an acute coronary syndrome (ACS) which requires prompt treatment may result in delay to appropriate recompression treatment. We describe ...
journal_title：Diving and hyperbaric medicine
pub_type： 杂志文章
doi：
更新日期：2013-12-01 00:00:00
abstract：:Inner-ear decompression sickness (DCS) is an incompletely understood and increasingly recognized condition in compressed-air divers. Previous reports show a high association of inner-ear DCS with persistent foramen ovale (PFO), suggesting that a moderate-to-severe right-to-left shunt might represent a major predisposi...
journal_title：Diving and hyperbaric medicine
pub_type： 信件
doi：
更新日期：2015-06-01 00:00:00
abstract：INTRODUCTION:An individual case review of diving-related deaths reported as occurring in Australia in 2006 was conducted as part of the Divers Alert Network Asia-Pacific (DAN AP) dive fatality reporting project. METHOD:The case studies were compiled using reports from witnesses, the police and coroners. In each case, ...
journal_title：Diving and hyperbaric medicine
pub_type： 杂志文章
doi：
更新日期：2011-06-01 00:00:00
abstract：BACKGROUND:Both negative wound pressure therapy (NPWT) and hyperbaric oxygen therapy (HBOT) are useful modalities in the treatment of problem wounds. However, none of the commercially available portable negative-pressure devices have been certified safe for use in a recompression chamber. Thus, the NPWT device is remov...
journal_title：Diving and hyperbaric medicine
pub_type： 杂志文章,随机对照试验
doi：
更新日期：2011-09-01 00:00:00
abstract：:Divers suspected of suffering decompression illness (DCI) in locations remote from a recompression chamber are sometimes treated with in-water recompression (IWR). There are no data that establish the benefits of IWR compared to conventional first aid with surface oxygen and transport to the nearest chamber. However, ...
journal_title：Diving and hyperbaric medicine
pub_type： 杂志文章,评审
doi：10.28920/dhm48.2.84-95
更新日期：2018-06-30 00:00:00
abstract：INTRODUCTION:Transcutaneous oximetry measurement (TCOM) is a non-invasive method of determining oxygen tension at the skin level using heated electrodes. AIM:To compare TCOM values generated by different machines and to establish lower limb TCOM values in a cohort of healthy individuals younger than 40 years of age. ...
journal_title：Diving and hyperbaric medicine
pub_type： 杂志文章
doi：10.28920/dhm47.2.82-87
更新日期：2017-06-01 00:00:00
abstract：INTRODUCTION:Decompression sickness (DCS) results from a decrease in ambient pressure leading to supersaturation of tissues with inert gas and bubble formation. Perfluorocarbons (PFCs) are able to dissolve vast amounts of non-polar gases. Intravenous (IV) PFC emulsions reduce both morbidity and mortality associated wit...
journal_title：Diving and hyperbaric medicine
pub_type： 杂志文章
doi：
更新日期：2012-03-01 00:00:00
abstract：:Livedoid vasculopathy is a painful, ulcerating condition of the lower legs, ankles and feet with the typical histological feature of hyalinising vascular change of dermal blood vessels with minimal inflammation. Therapeutic interventions have been diverse and varyingly successful. We report a biopsy-proven case in a 2...
journal_title：Diving and hyperbaric medicine
pub_type： 杂志文章
doi：
更新日期：2013-03-01 00:00:00
abstract：INTRODUCTION:We investigated in a prospective, observational trial the feasibility of using the Eustachian tube function test (ETFT) to measure the effect of repetitive pressure exposure during open seawater dives on Eustachian tube function. METHODS:The study included 28 adult divers during six consecutive days of di...
journal_title：Diving and hyperbaric medicine
pub_type： 杂志文章
doi：10.28920/dhm47.4.216-222
更新日期：2017-12-01 00:00:00
abstract：:In an emergency, life support can be provided during recompression or hyperbaric oxygen therapy using very basic equipment, provided the equipment is hyperbaric-compatible and the clinicians have appropriate experience. For hyperbaric critical care to be provided safely on a routine basis, however, a great deal of pre...
journal_title：Diving and hyperbaric medicine
pub_type： 杂志文章,评审
doi：
更新日期：2015-03-01 00:00:00
abstract：INTRODUCTION:Various prescribed and over-the-counter medications may theoretically be incompatible with the diving environment. Anecdotally, it is known divers regularly take medications around the time of their diving activities for different health conditions, possibly ignoring the recommendations not to do so. As pa...
journal_title：Diving and hyperbaric medicine
pub_type： 杂志文章
doi：
更新日期：2011-03-01 00:00:00
abstract：:Sphenoid sinus mucocele is a rare cystic lesion. It grows gradually and causes visual disturbances, ocular motility abnormalities and headache due to cavernous sinus compression. Sudden change in sinus cavity volume by a barotrauma may compress a mucocele and precipitate symptoms that may easily be confused with decom...
journal_title：Diving and hyperbaric medicine
pub_type： 杂志文章
doi：10.28920/dhm50.2.168-172
更新日期：2020-06-30 00:00:00
abstract：:It is increasingly common for recreational scuba divers to use breathing mixtures enriched with additional oxygen ('nitrox' or 'enriched air nitrogen') and for technical divers to be exposed to elevated partial pressures of oxygen for prolonged periods of time. The National Oceanic and Atmospheric Administration oxyge...
journal_title：Diving and hyperbaric medicine
pub_type： 杂志文章
doi：
更新日期：2008-06-01 00:00:00
abstract：INTRODUCTION:Decompression illness (DCI) is associated with a right-to-left shunt, such as persistent foramen ovale (PFO), atrial septal defect (ASD) and pulmonary arteriovenous malformations. About one-quarter of the population have a PFO, but considerably less than one-quarter of divers suffer DCI. Our aim was to det...
journal_title：Diving and hyperbaric medicine
pub_type： 杂志文章
doi：
更新日期：2015-06-01 00:00:00
abstract：:Divers from many countries travel to explore various diving sites worldwide. In 2005, the Divers Alert Network (DAN) wrote guidelines for recreational diving and diabetes mellitus, but there is no up-to-date consensus or adoption of international guidelines on diabetes and diving. There are also large differences betw...
journal_title：Diving and hyperbaric medicine
pub_type： 杂志文章
doi：
更新日期：2012-12-01 00:00:00
abstract：INTRODUCTION:The adverse effects of hyperbaric oxygen (HBO) on cardiac physiology are considered a potential hazard during the treatment of some patients. The haemodynamic effects of HBO are poorly understood and the incompatibility of electrical equipment inside the chamber has made assessment difficult. At Fremantle ...
journal_title：Diving and hyperbaric medicine
pub_type： 杂志文章
doi：
更新日期：2014-09-01 00:00:00
abstract：:Commercial or occupational breath-hold (BH) harvest divers along the coast and islands of Japan are collectively called Ama divers. Repetitive BH diving by Ama divers may place them at risk of developing neurological decompression sickness (DCS). We report a 74-year-old Ama diver who demonstrated right hemiparesis dur...
journal_title：Diving and hyperbaric medicine
pub_type：
doi：10.28920/dhm48.4.262-263
更新日期：2018-12-24 00:00:00
abstract：:Cerebral arterial gas embolism (CAGE) is a feared complication of ambient depressurisation and can also be a complication of hydrogen peroxide ingestion. We present an unusual case of CAGE in a 57-year-old woman exposed to both of these risk factors. We describe her subsequent successful treatment with hyperbaric oxyg...
journal_title：Diving and hyperbaric medicine
pub_type： 杂志文章
doi：
更新日期：2016-06-01 00:00:00
abstract：:Dear Editor, By focussing on the details of the Watson case, I believe Bryan Walpole has missed the thrust of my earlier letter. I agree this was a complex case, which is why I deliberately avoided the murky specifics in order to consider the 'big-picture' ramifications of the judgement. My concerns relate to the pote...
journal_title：Diving and hyperbaric medicine
pub_type： 信件
doi：
更新日期：2011-12-01 00:00:00
