Dysbaric osteonecrosis (DON) is caused by a reduction in blood flow in the shafts of long bones secondary to breathing compressed air. This reduction may result in damage to such structures as the humeral head of the shoulder and the femoral head of the hip. Osteonecrosis has been associated with a variety of causes other … Read more
I arrived in Port Moresby on 1st April but the Cyclone forming in the Solomon Sea was no joke. Captain Craig de Wit had invited me for an adventure into the Northern Coral Sea. We were to dive some of my favourite wild sites at Eastern Fields (PNG), nip into Australian Waters (Craig has permission … Read more
It’s a common sight. A diver is about to enter the water when suddenly his octopus or even his primary second-stage suddenly does an impression of a jet engine at the end of a runway just prior to take-off. The sudden roar as gas at 150 psi of pressure rushes out uncontrollably often precipitates the … Read more
Sam Espinosa parked his battered pickup truck full of yellowfin grouper, snapper, and pay for essay writing a smattering of big pelagic fish in front of my office and with obvious difficulty climbed the front walk. He presented himself with progressive symptoms including limb pain, patchy areas of numbness and tingling, along with exceptional fatigue and … Read more
No matter how carefully you may dive in saltwater, if you do it long and often enough you’ll likely have an eventual run in with a coral (or hydroid, sponge or similar cnidarian) that can inflict a painful envenomation. Sometimes these wounds can be long-lasting, as in 3-4 weeks or more, before significantly improving. Also, … Read more
