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https://www.readbyqxmd.com/read/27905823/are-recreational-scuba-divers-with-asthma-at-increased-risk
#1
Amalie Ustrup, Charlotte Suppli Ulrik
BACKGROUND AND OBJECTIVE: Asthma has traditionally been regarded as a contraindication to Self-Contained Underwater Breathing Apparatus (SCUBA) diving, although large numbers of patients with asthma dive. The aim of the present review is to provide an update on current knowledge on potential disease-related hazards in SUBA-divers with asthma. METHODS: Systematic literature review based on the preferred reporting items for systematic reviews and meta-analyses (PRISMA) guidelines...
December 1, 2016: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/27843762/dangers-of-flying-high-and-diving-low-an-unusual-case-of-dyspnea
#2
Poornima Ramadas, Rumon Chakravarty, Prathik Krishnan, Anupa Nadkarni
Giant bullae are bullae that occupy at least 30 percent of a hemi thorax. This condition can rarely be idiopathic and not usually suspected in young patients with no risk factors. We describe a case of a giant solitary pulmonary bulla in a healthy young female with no known risk factors. 23-year-old female presented to the Emergency department with dyspnea and pleuritic right sided chest pain. She started experiencing these symptoms when she was on a 7-h flight and later experienced similar symptoms when she went scuba diving...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/27837221/femoral-avulsion-fracture-of-acl-proximal-attachment-in-male-scuba-diver-case-report-and-review-of-the-literature
#3
Sebastian Zabierek, Krzysztof Nowak, Marcin Domzalski
Femoral ACL avulsion fractures were not well described in the literature, and there were only several reports describing mostly immature patients. A case of 50-year-old man with ACL femoral attachment avulsion fracture after pivoting knee injury during skiing was presented. The bony attachment was reduced and fixed arthroscopically with screws. Four months after surgery, patient was allowed to return to full sport activity with full range of motion. He was able to perform a one-leg-hop test without limitation, and the strength of quadriceps muscle was comparable to contralateral side...
November 11, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27826405/the-effect-of-20-minutes-scuba-diving-on-cognitive-function-of-professional-scuba-divers
#4
Seyedeh Faezeh Pourhashemi, Hedayat Sahraei, Gholam Hossein Meftahi, Boshra Hatef, Bahareh Gholipour
BACKGROUND: Physical activity increases the performance of the nervous system by stimulating the body's metabolism and improving the efficiency of the ATP production system. OBJECTIVES: In the present study, the effect of twenty minutes scuba diving in high depth (10m) on cognitive function and stress system activity was investigated. METHODS: Twelve professional scuba divers with a mean age of 23 ± 1 year, weight of 80 ± 2.5 kg and height of 1...
September 2016: Asian Journal of Sports Medicine
https://www.readbyqxmd.com/read/27811906/just-when-you-thought-it-was-safe-to-go-back-in-the-water
#5
Jonathan Coe
Prevalence of dental problems in recreational SCUBA divers: A pilot survey.
November 4, 2016: British Dental Journal
https://www.readbyqxmd.com/read/27811894/prevalence-of-dental-problems-in-recreational-scuba-divers-a-pilot-survey
#6
V Ranna, H Malmstrom, M Yunker, C Feng, S Gajendra
Objective To determine the prevalence of dental symptoms in recreational scuba divers and describe the distribution of these symptoms on the basis of diver demographics, diving qualifications and dive conditions during the episode of dental pain.Design A survey was designed and distributed through online social media platforms dedicated to scuba diving. A convenience sample of 100 recreational divers was obtained by this method.Main outcome measures The outcome measures of interest were: diver demographics, diving characteristics (level of certification, number of dives completed), occurrence of dental problems during a dive, and details of the episode...
November 4, 2016: British Dental Journal
https://www.readbyqxmd.com/read/27795901/the-differentiation-of-common-species-in-a-coral-reef-fish-assemblage-for-recreational-scuba-diving
#7
Tsen-Chien Chen, Cheng-Tze Ho, Rong-Quen Jan
BACKGROUND: Recreational scuba diving is a popular activity of the coral reef tourism industry. In practice, local diving centers recommend interesting sites to help visiting divers make their plans. Fish are among the major attractions, but they need to be listed with care because the temporal occurrence of a fish species is difficult to predict. To address this issue, we propose methods to categorize each fish species based on its long-term occurrence and likelihood of being seen. METHODS: We assume that there are K categories of occurrence of a fish assemblage and propose two methods [an arithmetic-mean method (AM) and a geometric-mean method (GM)] to define the range of species in each category...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27783710/correction-enriched-air-nitrox-breathing-reduces-venous-gas-bubbles-after-simulated-scuba-diving-a-double-blind-cross-over-randomized-trial
#8
Vincent Souday, Nick J Koning, Bruno Perez, Fabien Grelon, Alain Mercat, Christa Boer, Valérie Seegers, Peter Radermacher, Pierre Asfar
[This corrects the article DOI: 10.1371/journal.pone.0154761.].
2016: PloS One
https://www.readbyqxmd.com/read/27783620/devastating-transboundary-impacts-of-sea-star-wasting-disease-on-subtidal-asteroids
#9
Diego Montecino-Latorre, Morgan E Eisenlord, Margaret Turner, Reyn Yoshioka, C Drew Harvell, Christy V Pattengill-Semmens, Janna D Nichols, Joseph K Gaydos
Sea star wasting disease devastated intertidal sea star populations from Mexico to Alaska between 2013-15, but little detail is known about its impacts to subtidal species. We assessed the impacts of sea star wasting disease in the Salish Sea, a Canadian / United States transboundary marine ecosystem, and world-wide hotspot for temperate asteroid species diversity with a high degree of endemism. We analyzed roving diver survey data for the three most common subtidal sea star species collected by trained volunteer scuba divers between 2006-15 in 5 basins and on the outer coast of Washington, as well as scientific strip transect data for 11 common subtidal asteroid taxa collected by scientific divers in the San Juan Islands during the spring/summer of 2014 and 2015...
2016: PloS One
https://www.readbyqxmd.com/read/27775814/a-subgroup-cluster-based-bayesian-adaptive-design-for-precision-medicine
#10
Wentian Guo, Yuan Ji, Daniel V T Catenacci
In precision medicine, a patient is treated with targeted therapies that are predicted to be effective based on the patient's baseline characteristics such as biomarker profiles. Oftentimes, patient subgroups are unknown and must be learned through inference using observed data. We present SCUBA, a Subgroup ClUster-based Bayesian Adaptive design aiming to fulfill two simultaneous goals in a clinical trial, 1) to treatments enrich the allocation of each subgroup of patients to their precision and desirable treatments and 2) to report multiple subgroup-treatment pairs (STPs)...
October 24, 2016: Biometrics
https://www.readbyqxmd.com/read/27771601/r-gas-under-diaphragm
#11
Maddibande Ramachar Sreevathsa, Khyati Melanta
INTRODUCTION: The most common cause of gas under diaphragm is hollow viscous perforation. In 10% of cases it can be due to rare causes, both abdominal and extra-abdominal, one of them being intra abdominal infection by gas forming organisms. PRESENTATION OF THE CASE: A 51 year old male patient, a poorly controlled diabetic, presented with a second episode of severe pain abdomen and abdominal distention, with lower abdominal tenderness. Plain Xray of the abdomen in erect posture showed gas under the right dome of diaphragm and ultrasound abdomen confirmed gross pneumoperitoneum...
October 14, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27761310/a-comprehensive-investigation-of-mesophotic-coral-ecosystems-in-the-hawaiian-archipelago
#12
Richard L Pyle, Raymond Boland, Holly Bolick, Brian W Bowen, Christina J Bradley, Corinne Kane, Randall K Kosaki, Ross Langston, Ken Longenecker, Anthony Montgomery, Frank A Parrish, Brian N Popp, John Rooney, Celia M Smith, Daniel Wagner, Heather L Spalding
Although the existence of coral-reef habitats at depths to 165 m in tropical regions has been known for decades, the richness, diversity, and ecological importance of mesophotic coral ecosystems (MCEs) has only recently become widely acknowledged. During an interdisciplinary effort spanning more than two decades, we characterized the most expansive MCEs ever recorded, with vast macroalgal communities and areas of 100% coral cover between depths of 50-90 m extending for tens of km(2) in the Hawaiian Archipelago...
2016: PeerJ
https://www.readbyqxmd.com/read/27747724/citalopram-induced-long-qt-syndrome-and-the-mammalian-dive-reflex
#13
Frank F Vincenzi, Philippe Lunetta
While SCUBA diving, a 44-year-old Caucasian patient had an abnormal cardiac rhythm, presumably Torsade de Pointes (TdP), during the initial descent to depth. Upon surfacing, she developed ventricular fibrillation and died. The patient had been treated for mild depression for nearly a year with citalopram 60 mg per day, a drug known to cause prolonged QT interval. She had also been treated with two potentially hepatotoxic drugs. Liver impairment causes selective loss of cytochrome P450 (CYP) 2C19 activity, the major pathway for metabolism of citalopram...
December 2015: Drug Safety—Case Reports
https://www.readbyqxmd.com/read/27723022/insulin-dependent-diabetes-mellitus-and-recreational-scuba-diving-in-australia
#14
Rebecca Johnson
Dive medicine bodies worldwide recognise that, with comprehensive screening and careful management, people with insulin-dependent diabetes (IDDM) can dive safely. Despite this, people with IDDM in Australia are generally denied access to dive training, an out-dated status quo that is not acceptable to the Australian diabetes community. This paper reflects upon the important advocacy work that has been done to progress this issue, and what is still required to open up access and bring Australia into line with more flexible and supportive international standards...
September 2016: Diving and Hyperbaric Medicine: the Journal of the South Pacific Underwater Medicine Society
https://www.readbyqxmd.com/read/27649181/design-and-experimental-validation-of-a-usbl-underwater-acoustic-positioning-system
#15
Joel Reis, Marco Morgado, Pedro Batista, Paulo Oliveira, Carlos Silvestre
This paper presents the steps for developing a low-cost POrtableNavigation Tool for Underwater Scenarios (PONTUS) to be used as a localization device for subsea targets. PONTUS consists of an integrated ultra-short baseline acoustic positioning system aided by an inertial navigation system. Built on a practical design, it can be mounted on an underwater robotic vehicle or be operated by a scuba diver. It also features a graphical user interface that provides information on the tracking of the designated target, in addition to some details on the physical properties inside PONTUS...
2016: Sensors
https://www.readbyqxmd.com/read/27636390/prevalence-of-barotrauma-in-recreational-scuba-divers-after-repetitive-saltwater-dives
#16
Stefanie Jansen, Moritz Friedo Meyer, Manuela Boor, Moritz Felsch, Heinz-Dieter Kluenter, Eberhard Daniel Pracht, Karl-Bernd Hüttenbrink, Dirk Beutner, Maria Grosheva
INTRODUCTION: The aim was to investigate the prevalence of middle ear barotrauma (MEB) and to establish risk factors of MEB after repeated saltwater dives. METHODS: In this prospective observational cohort study 28 divers were examined over 6 consecutive days of diving in the Red Sea, Egypt. Participants underwent an otoscopic examination before the first dive, between each dive and after the last dive. In addition, they performed Valsalva maneuver (VM) and were questioned about dive-related complaints...
October 2016: Otology & Neurotology
https://www.readbyqxmd.com/read/27634609/initial-severity-scoring-and-residual-deficit-in-scuba-divers-with-inner-ear-decompression-sickness
#17
Emmanuel Gempp, Pierre Louge, Sébastien de Maistre, Jean-Baptiste Morvan, Nicolas Vallée, Jean-Eric Blatteau
BACKGROUND: Inner ear decompression sickness (IEDCS) in scuba diving results in residual vestibulocochlear deficits with a potential impact on health-related quality of life. The aim of this study was to determine the predictive factors for poor clinical recovery and to try to establish a prognostic score on initial physical examination. METHODS: The medical records of injured divers with IEDCS treated in our facility between 2009 and 2014 were retrospectively analyzed...
August 2016: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/27623219/a-shark-encounter-delayed-primary-closure-and-prophylactic-antibiotic-treatment-of-a-great-white-shark-bite
#18
Daniel Popa, Karen Van Hoesen
BACKGROUND: Shark bites are rare but sensational injuries that are covered in the lay press but are not well described in the medical literature. CASE REPORT: We present the case of a 50-year-old man who sustained two deep puncture wounds to his thigh from a great white shark in the waters surrounding Isla de Guadalupe off the coast of Baja California, Mexico, during a caged SCUBA dive. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: We discuss our strategy of closing the wounds in a delayed primary fashion 24 hours after injury, our antibiotic choices, and the patient's course and review marine pathogens and appropriate antibiotic coverage...
September 9, 2016: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/27547514/the-masquerade-game-marine-mimicry-adaptation-between-egg-cowries-and-octocorals
#19
Juan A Sánchez, Angela P Fuentes-Pardo, Íde Ní Almhain, Néstor E Ardila-Espitia, Jaime Cantera-Kintz, Manu Forero-Shelton
Background. Background matching, as a camouflage strategy, is one of the most outstanding examples of adaptation, where little error or mismatch means high vulnerability to predation. It is assumed that the interplay of natural selection and adaptation are the main evolutionary forces shaping the great diversity of phenotypes observed in mimicry; however, there may be other significant processes that intervene in the development of mimicry such as phenotypic plasticity. Based on observations of background mismatching during reproduction events of egg-cowries, sea snails of the family Ovulidae that mimic the octocoral where they inhabit, we wondered if they match the host species diversity...
2016: PeerJ
https://www.readbyqxmd.com/read/27525139/horner-s-syndrome-due-to-a-spontaneous-internal-carotid-artery-dissection-after-deep-sea-scuba-diving
#20
Jose Enrique Alonso Formento, Jose Luis Fernández Reyes, Blanca Mar Envid Lázaro, Teresa Fernández Letamendi, Ryth Yeste Martín, Francisco José Jódar Morente
Internal carotid artery dissection (ICAD) is a rare entity that either results from traumatic injury or can be spontaneously preceded or not by a minor trauma such as sporting activities. It represents a major cause of stroke in young patients. The diagnosis should be suspected with the combination of Horner's syndrome, headache or neck pain, and retinal or cerebral ischaemia. The confirmation is frequently made with a magnetic resonance angiography (MRA). Although anticoagulation with heparin followed by vitamin-K-antagonists is the most common treatment, there is no difference in efficacy of antiplatelet and anticoagulant drugs at preventing stroke and death in patients with symptomatic carotid dissection...
2016: Case Reports in Neurological Medicine
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