Sinus Barotrauma
This most often involves the frontal or maxillary sinuses and the pressure differential usually causes the lining of the sinuses to become swollen and bleeding can ensue.Nosebleed is a common…
Headaches and Diving
Headaches at DepthCO2 RetentionDue to skip breathing, gear malfunction, rebreather failure. Causes a "sick headache" type of generalized pain and can be associated with nausea and vomiting. The tendency to…
Guillain-Barre Syndrome
Scuba Diving Concerns:This condition has skeletal muscle weakness which can involve extremity, truncal or bulbar groups and typically evolves over a matter of several hours to a few days can…
Epilepsy and Diving
Any form of unconsciousness under water is deadly, with the attendant likelihood of arterial gas embolism and drowning. Epilepsy, even if well-controlled, places you at great risk and one should…
HBO and Anemia
HBO in the Treatment of Acute Blood Loss AnemiaMechanisms of ActionThe efficacy of hyperbaric therapy is based on an elevation of the partial pressure of oxygen (PO2), resulting in hyperoxygenation…
Blood Donation and Diving
Divers often donate blood and need to know when to resume diving. This article is meant to provide information to help answer those questions. This information should apply to any…
Diving with Anemia
Definition of AnemiaAnemia can be defined as a reduction in the hemoglobin, hematocrit or red cell number. In physiologic terms an anemia is any disorder in which the patient suffers…
Iron Overload and Diving
by Martin KirkNASA researchers recently quantified a number of physiological changes, previously detected in astronauts in outer space, in divers in an underwater habitat off the coast of Florida. In…
Polycythemia Vera
What is Polycythemia?It is a condition in which the body produces too many red blood cells. There are few references to this condition in any of the major textbooks of…
Anticoagulants and Diving
What Are Anticoagulants?Anticoagulants are drugs or substances that cause the blood to clot more slowly when out of the blood vessel; examples would be coumadin (Warfarin, Dicoumarol) and heparin. These…
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