Brittle Asthma-Type 2

What can anyone tell me about this. My son was just diagnosed with this after he had a bad asthma attack that caused cardiorespiratory arrest.
Thanks in advance.

Hi, thanks for the info. My son collapsed after running about 1 km. When I found him he was still shallow breathing and his heart rate was 160+. By the time the Paramedics came about 5 mins later his breathing had ceased and his heart rate went from over 160 to undetectable. They immediately started CPR and had a defib handy if needed, but luckily they didn't need it. Have you ever heard of anyone having hypoxic seizures during an asthma attack? My son had a couple right after the Paramedics were finished giving CPR and were just getting the oxygen under control. He then became very agitated for about 1/2 hour and was still not breathing on his own. They bagged him with oxygen and monitored his heart until they got to the hosp. Soon after they got there he started coughing and breathing on his own and was soon fully alert besides some extreme fatigue from the whole episode with lasted about 1-1/2 hours. The ER doc thought that he was faking it because he seemed to come around so quickly. I told the doc that my son (now 19) had asthma since he was born and he told me "This isn't asthma. Your son is obviously on drugs and seeking attention". I was outraged and so was our GP when he came in the morning. He said that my son had severe asthma and it wasn't until I found a forum in the UK that I had heard of the term Brittle asthma. I have since gone to a pulmonologist and he confirmed that my son probably has Type 2 Brittle asthma. He has had 3 attacks since that time 4 months ago but nothing as serious. He wasn't on Flovent at the time but is now on the max dose until we can figure out if that ever happens again. But if you have any info on hypoxic seizures for me that would be great. Because I have heard that they can be life threatening if more that one occurs. My son seems to be fine for now though.
Thanks again.