From the YMCA SCUBA website.
YMCA SCUBA ASTHMATIC DIVER PROTOCOL
Dr. Duke Scott, Medical Adviser
The YMCA of the USA has been and continues to be dedicated to meeting the needs of all people, including those with disabilities, providing them with the opportunity to reach their fullest potential and enhancing the quality of their lives. In accordance with this philosophy, the YMCA scuba Program has been proud to assume the leadership role in dealing with disability issues as they apply to the diving community. YSCUBA has already developed successful programs for physically challenged and diabetic divers. After several years of study, research, and appropriate consultation, YSCUBA is now prepared to initiate a program which will allow qualified asthmatics to participate in YSCUBA training.
Asthma affects more than 14 million Americans. At least 75 percent of asthmatics demonstrate hypersensitivity to airborne allergens. Atopy, the genetic predisposition for the development of IgE antibodies to common allergens, is an accepted risk factor for asthma among children and adults. In addition to allergens, numerous activities, or exposures that precipitate or exacerbate episodes of asthma, have been identified. These "triggers" include viral infections, environmental pollutants, medications, foods, sustained exercise, cold, and emotional distress. Identification and avoidance of these allergens and triggers are important components of asthma management. They obviously are important in determining which asthmatics can safely participate in scuba training and scuba diving.
During the 1990's impressive strides were made in the management of asthmatic individuals. The reason for this is two-fold. First, there was the realization that asthma is a chronic inflammatory disease involving the lungs' bronchial tree. This changed the focus of treatment from symptomatic therapy to preventive therapy by utilizing medications that inhibit or reduce bronchial inflammation. Second, a multitude of anti-inflammatory drugs have been developed. These new drugs offer a prolonged period of action and therefore increased protection during periods of increased exertion, such as during scuba. These two factors have revolutionized the treatment of mild to moderate asthmatics. This allows us to approach asthmatics based on their level of function as opposed to their classification. That is, their ability to exercise is independent of whether or not their asthmatic condition requires medication for control.
In the third edition of Diving Medicine (1997), Dr. Tom S. Neuman discusses the case for and against asthmatic scuba divers. I found his case for allowing selective asthmatics to participate in scuba programs very compelling. I recommend that any of our YMCA instructors who contemplate teaching asthmatics to dive become familiar with his recommendations.
Dr. Neumann first discusses the studies and concepts that are most frequently used to argue against diving for asthmatics. He then explores these studies, showing how some of the results may have been misinterpreted. In fact, new studies are described that contradict some of the previous findings. Lastly, he reports on two recent symposia, attended by diving-medicine experts, which concluded that "asthma did not predispose to diving-related pulmonary barotrauma" and that "the limiting factor for asthmatics is adequate ventilatory capacity underwater."
In light of their conclusions, Dr. Neumann suggests that the research data to this point does not support the absolute banning of all asthmatics as diving candidates. Also, the diving community cannot ignore the excellent safety record of the many "closet" asthmatic divers in the United States and certified asthmatic divers of the British Sub-Aqua Club. The B.S.A.C. does not certify exercise-induced asthmatics. On the other hand, we cannot ignore the data that suggests the potential risk of barotrauma is greater in asthmatics. Still, it is obvious that asthmatics are a very heterogeneous group with varying degrees of respiratory difficulties. Therefore, as with diabetics, each asthmatic's eligibility for scuba training should be evaluated on his or her own merits.
Based on these findings, the YSCUBA Program recommends the following guidelines for determining which asthmatics are fit to participate in our scuba training programs. This protocol should be used by a potential asthmatic scuba student in consultation with his or her physician to determine eligibility for scuba training. Once accepted, the student must be closely monitored by the instructor. If the student's asthma becomes symptomatic during pool training or open-water dives, he or she must be dropped from the class and disqualified from further scuba training.
The YSCUBA Program began accepting qualified asthmatics as scuba students as of January 1, 2000. Initially, all potential asthmatic scuba students are required to receive clearance by the YSCUBA Medical Advisor prior to being accepted into an instructor's class. The reason for this is twofold. The first is to be sure that the student and YSCUBA are covered by our professional liability insurance. Our insurance will only cover us if the asthmatic meets the requirements set forth in the Protocol. Second, the YSCUBA training of asthmatics will be closely scrutinized by the other diving agencies as a whole. Therefore, we must monitor the progress of these individuals closely, not only during their training, but also during their entire diving experience. The data we accumulate will be utilized to confirm our position that select asthmatics are fit to dive. It will also be used to modify the Protocol as needed and to aid us in developing more effective teaching methods. Every instructor who chooses to teach asthmatics will be required to submit data concerning the students' response to scuba training. Every asthmatic student will be requested to periodically submit information concerning his or her diving activities. The necessary forms and method for reporting this information will be provided by the YSCUBA Medical Advisor. The YSCUBA instructor and/or the asthmatic student's physician should contact the YSCUBA Medical Advisor, Dr. Duke Scott, if they have any questions or problems concerning the use of the Protocol.
Duke Scott, M.D.
YSCUBA Medical Advisor
1606 Arrowhead Trail
Neptune Beach, FL 32266
Phone: (904) 246-0750
Fax: (904) 246-4947
Email:
dr1313@aol.com