Re: what happened to the passengers of flight 93? Â« Reply #17 on: May 06, 2011, 05:33:51 pm Â». There are a lot of different theories on here about what happened. I must say that flight 93 might be the the part of 9/11 that I'm the most undecided on.here are a lot of different theories on here about what happened. I must say that flight 93 might be the the part of 9/11 that I'm the most undecided on.
Atrial fibrillation and atrial flutter are very fast electrical discharge patterns that make the atria contract very rapidly, with some of the electrical impulses reaching the ventricles and causing them to contract irregularly, faster, and less efficiently than normal.
flutter. a rapid vibration or pulsation. atrial flutter a cardiac arrhythmia in which the atrial contractions are rapid (230â380 per minute), but regular. Two types, I and II, are distinguished according to rate; Type I is also more amenable to cardioversion.In Type I the atrial rate is usually 290 to 310 per minute but can range from 230 to 350. rapid vibration or pulsation. atrial flutter a cardiac arrhythmia in which the atrial contractions are rapid (230â380 per minute), but regular. Two types, I and II, are distinguished according to rate; Type I is also more amenable to cardioversion.