0
Inter-Island Flights
January 18th, 2016
While vacationing in St. Maarten, I plan to do a day trip to Saba, with the intention of doing 3 dives. I would fly out in the morning, returning in the evening. The first dive would be at 90 to 130 ... Read More
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Atrial Septal Defects
January 11th, 2016
What's an atrial septal defect and how does it affect diving? An atrial septal defect (ASD) results from the incomplete closing of the wall that separates the right and left atria (the two upper cha... Read More
0
Patent Foramen Ovale
January 4th, 2016
How big of a problem is it to have a patent foramen ovale? The foramen ovale is an opening that exists between the right and left atria, the two upper chambers of the heart. During the fetal period... Read More
0
Raynaud's Syndrome
December 28th, 2015
I've recently been diagnosed with Raynaud's Syndrome. I'm an avid diver. Can I continue diving? Raynaud's Syndrome decreases effective blood flow to the extremities, most significantly fingers and t... Read More
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Pacemakers & Diving
December 21st, 2015
Is it safe to begin scuba diving - or to continue to dive - after having a cardiac pacemaker implanted? In the past it was probably easier to take an overly-conservative approach and say unequivocal... Read More
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Mask Squeeze
December 14th, 2015
I am a recently-certified diver and have just completed my first offshore dive trip. I had what looked like a bright red patch of blood over the white of my eye when I looked in the rear-view mirror ... Read More
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Nosebleeds (Sinus Squeeze)
December 7th, 2015
I have noticed that beginning scuba divers frequently have nosebleeds. Could you please tell me what causes them? New divers often report nosebleeds after diving primarily because they are unaware o... Read More
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Ear Pain
December 3rd, 2015
My husband and I had just returned from a four-day dive trip. We had made four dives per day, all multilevel, in Saipan. After the second day of diving, my husband had problems clearing and complain... Read More
0
Sharks Aquatic vs. Sparks Atmospheric
November 20th, 2015
Great!!!! We have just received a question from a DAN SA member about a comment in my lecture on Hazardous Marine Life Injuries (HMLI).By the way, you can click here for HMLI Part 1 and here for HML... Read More
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Bubble, Bubble toil and trouble...
November 11th, 2015
DAN often gets questions about bubbles after diving, such as: Are bubbles always a sign of decompression illness?Where do bubbles form?When do bubbles cause problems?These are all excellent questions!... Read More
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The Oxygen Window
November 10th, 2015
As we breathe, the inspired gas partial pressures (O2, N2, CO2 and H2O vapor) within the alveolar sacs of the lung are in a dynamic balance with the dissolved gas tensions in the blood flowing throug... Read More
2
DAN is My Buddy
May 26th, 2015
Diving-related injuries are rare, but when they do occur, there is an urgent need for diving medical assessment and appropriate emergency medical management. The latter may include recompression - bu... Read More
2
Xenophobic Retaliation
April 20th, 2015
“This is an urgent message to all DAN members that are planning to go on dive trips to Mozambique. Various social media reports indicate that xenophobic attacks are taking place on vehicles that bear... Read More
0
Joint Replacements - Can I dive?
March 26th, 2015
DAN often gets questions about metallic implants, joint replacements, amputations and arthrodeses (joint stiffening surgery). In general, once fully recovered, there is no requirement for specific lim... Read More
2
Fit to dive - what should instructors know?
March 26th, 2015
Whether you realise it or not, you, as dive instructors or divemasters, actually play the most important part in assessing whether individuals are actually healthy enough to dive!
Many divers will ... Read More
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Chemotherapy - can I dive?
March 23rd, 2015
The Big "C"... In previous years a death sentence; today, many people not only survive cancer, but return to their lives. Many remain in long-term remission or are even considered cured. So, the quest... Read More
2
High Blood Pressure - can I dive?
March 23rd, 2015
High blood pressure, also called hypertension or essential hypertension, is one of the most common medical conditions in individuals over 40 years of age. Not surprisingly, it is just as common among... Read More
1
DMT Training in South Africa
March 2nd, 2015
DAN Southern Africa frequently gets requests to offer “DMT”training. The term, DMT stands for Diving Medical Technologist (DMT). Unfortunately, this term is a bit ambiguous and the purpose of this in... Read More
12
Buddy Systems & the deception of good viz
February 19th, 2015
What's wrong with this picture...? No, not the composition... What is wrong with the divers in the picture...? There doesn't seem to be a Buddy System in place, does there...?This picture was taken in... Read More
3
Reverse Profiles - do we have it backwards?
January 20th, 2015
Deepest dive first has been one of the tenets of safe diving for years. Recently the DAN Hotline got a call about this following an article on the web [Click here for the original article].The core i... Read More
10
Dizziness & Vertigo in Divers
January 14th, 2015
Dizziness and vertigo are common symptoms associated with diving. Some are serious; some aren't.We have recorded a 20 minute presentation that reviews the common causes of dizziness and vertigo and di... Read More
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The Strength of Indemnities
January 8th, 2015
The court ruled that a defense based on the fact that a tourist signed an indemnity was not sufficient and held the company and the skipper, liable. The cause of action revolved around the negligence ... Read More
2
Medication, Drugs & Diving
December 31st, 2014
One of the features that distinguish man from animals is our desire to take medication! Beyond the age of 18, nearly all humans take some or other form of medication, nutritional supplement or mood en... Read More
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Pressure Medicine - what's it all about!
December 24th, 2014
Pressure Medicine, or Baromedicine, is a collective term: It encompasses both the low and high pressure spectra - hypo and hyperbaric pressures respectively. This presentation provides an overview o... Read More
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My name is Rosanne… DAN was there for me?My name is Pam… DAN was there for me?My name is Nadia… DAN was there for me?My name is Morgan… DAN was there for me?My name is Mark… DAN was there for me?My name is Julika… DAN was there for me?My name is James Lewis… DAN was there for me?My name is Jack… DAN was there for me?My name is Mrs. Du Toit… DAN was there for me?My name is Sean… DAN was there for me?My name is Clayton… DAN was there for me?My name is Claire… DAN was there for me?My name is Lauren… DAN was there for me?My name is Amos… DAN was there for me?My name is Kelly… DAN was there for me?Get to Know DAN Instructor: Mauro JijeGet to know DAN Instructor: Sinda da GraçaGet to know DAN Instructor: JP BarnardGet to know DAN instructor: Gregory DriesselGet to know DAN instructor Trainer: Christo van JaarsveldGet to Know DAN Instructor: Beto Vambiane
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2023
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Terrific Freedive ModeKaboom!....The Big Oxygen Safety IssueScuba Nudi ClothingThe Benefits of Being BaldDive into Freedive InstructionCape Marine Research and Diver DevelopmentThe Inhaca Ocean Alliance.“LIGHTS, Film, Action!”Demo DiversSpecial Forces DiverWhat Dive Computers Don\'t Know | PART 2Toughing It Out Is Dangerous
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