Author: root

Although Medevac may still ultimately be required, the ability to assess and treat the wound locally offers numerous benefits. First, the bite can be treated more quickly without a delay in the time to transfer the patient. This is proven to produce much better patient outcomes. The knowledge that this service is at hand also presents the workforce with greater peace of mind and can improve morale. In addition, the oil company is also opening an opportunity to provide supplementary support to remote, local communities where, previously, the chances of a good outcome following envenomation were low. This enhances corporate social responsibility (CSR) and generates good will in the local community.

In Kenya, snakebite envenoming claims thousands of lives every year and, like diseases such as malaria, is a part of everyday life. For the oil industry, the threat of snakebites in this area is probably one of the top three risks to workers.

To support its local strategy in dealing with snakebites, International Oil Company Tullow Oil has worked alongside Remote Medical International with the support of the Asclepius Snakebite Foundation to put a robust response strategy in place for its sites in Kenya. This includes donations of medicines, and training of staff in local hospitals to systematically assess, diagnose, and treat patients with snake envenomation. The definitive treatment capability that has been developed produces better patient outcomes for anyone who is bitten in the area, and reports are already indicating a reduction in snakebite deaths and disabilities and an increase in patients seeking treatment in the area since the program began.

The response strategy from Remote Medical International includes evaluation of the local threat, identification of species of concern, assessment of the relative risk to workers, and a clear risk reduction strategy. The clinical implementation comprises assessment of which antivenom is most effective against the local venomous snakes of medical significance and the creation of advanced field treatment protocols, along with continual advisement and 24/7 consultation with medical and subject matter experts (SME) in the event of envenomation.

Andy Kimmell, Operations Director, Global Coordination & Security at Remote Medical International said: “A medical response team for an envenomation needs to be trained specifically for such an event but the overall management of snakes in the area requires cooperation through a multidisciplinary team. We work with experts in snakebites and antivenom and a senior SME is always available to oversee incidents. It is through a well thought out, robust and cohesive strategy, put together by experts in this area, that we are able to save lives and limbs.”

Prevention of snakebites is the first goal. The team works proactively with snake handlers, safety and security teams to try to remove the threat of snakebites from camps and work areas. Inevitably, however, this cannot be 100% assured and snakebites do occur. When this happens the circumstances are reviewed, and safeguarding procedures updated if appropriate.

Safe and sound asleep?

“At a remote oil and gas camp in Kenya, a man sleeping in an eight-man dormitory awoke with breathing difficulties and a pain in his hand. The on-site medics quickly identified it as a cobra envenomation and acted” recalled Kimmell.

He added, “Of course, a top priority was to administer the correct antivenom and treat the patient. The neurotoxic bite was attacking the respiratory system and quick action was needed to save the man’s life. The other priority was to get the other seven men out of the tent and to safety until the snake had been found. Snake handlers and security teams worked quickly to find the snake, humanely capture it and release it in accordance with procedures outside of the camp.

The other underlying issue for this attack, however, was that the snake entered a place that workers considered a place of rest and safety. The onsite snakebite team, including handlers, security and medical staff, worked to restore confidence among the workers and carry out due diligence to ensure there was not a bigger, unseen issue on site such as nest of cobra eggs nearby that had gone unnoticed.”

Jordan Benjamin, Founder & Executive Director of The Asclepius Snakebite Foundation said: “This example shows the complexity of dealing with snakebites in an austere environment. Every snakebite is a unique toxicological emergency that must be dealt with quickly and precisely in order to ensure the best possible outcome for the patient. Every minute wasted after a bite occurs allows more time for the various venom components to attack their targets in the victim’s body, and there is a marked increase in mortality for every hour that passes until the right dose of the right antivenom is administered.

Companies that rely on Medevacs as their primary response to a snakebite fail to realize that they are making the situation worse. It is far more effective, both in cost and in outcomes, to invest in a robust snakebite management plan with onsite antivenom treatment capabilities. Snakebite is an occupational hazard, and the psychological effect on others in the work area can also be significant. Robust systems need to be in place to both react to the immediate threat to life from the envenomation and deal with how and why the bite occurred, taking any actions necessary to reduce risk in the future.”

A little about antivenoms…

Developments in antivenoms have helped to reduce mortality rates from snakebites in remote areas. Treatments were previously based on using antibodies from horse serum and required constant refrigeration. This posed several problems: Antibodies from horse serum are known to produce high rates of anaphylaxis and can provoke life-threatening anaphylactic reactions to the antivenom. Its administration required at least two advanced medics on site to deal with any reaction. Since 95% of bites occur in rural areas of the developing world, the need for refrigeration also severely limited where the antivenom could be stored, often leading to a delay in getting the antivenom to the patient.

Modern antivenoms are much more stable and use highly purified antibody fragments that have undergone additional processing to remove the immunogenic component of the molecule responsible for severe allergic reactions. This means they can be transported without cold chain refrigeration, stored on a shelf at ambient tropical temperatures for years, and administered safely by direct intravenous push, helping reduce the time to treatment in remote locations.

“The advances made in antivenoms have helped enormously with the threat to life of snakebites in remote areas. Freeze dried serums that do not require refrigeration and have longer shelf life make treatment more accessible and more affordable, as well as providing improved safety with lower risks of an allergic reaction. With these antivenoms available, more work now needs to be done in terms of outreach and education to help remote communities deal with this threat.” added Benjamin.