I lost my father recently. He suffered from Left ventricular tachycardia suffering heart attack in 1987 and cardiac arrest in 2002. Ever since he had been placed in AICD . He also had COPD . His lungs were weak and his left ventricle worked only 35%. Early this year he like before complained of difficulty in breathing. He consulted a chest specialist. He was given steriods. But just the next day morning he coulne breath and collapsed after which there was froth coming out from his mouth. Doctor what could have possibly happened. I know he is already no more. But we have been doing his treatment since last two decades in the best possible way but it was only in the end stage that we could not know his cause. I am from Guwahati and his treatment majorly went in Escorts Delhi. Although that particular day he was in Guwahati and the doctors here dont give any reply. Please help and reply although its a question of my dead father .Please.