Prognostic value of serum beta 2-microglobulin in HIV infection.

hypertrophic cardiomyopathy’ by DDD pacing. Third, despite the fact that the patients were mainly in New York Heart Association functional class IV before DDD pacing, in both types of cardiomyopathy a considerable increase in exercise capability is achieved.h’ Moreover, in both conditions the beneficial effects of chronic DDD pacing continue to be evident when pacing is abruptly stopped.’" During 5 years’ follow-up a continuous decrease in the size of the left ventricle was seen in dilated cardiomyopathy.4 These important findings indicate that in both types of cardiomyopathy DDD pacing in the long run seems to have