It basically is saying you are having some premature ventricular beats and that your heart rate is getting pretty slow at night. Unfortunately you are not having enough of the premature beats, 193 for a 24 hour period, for a doctor to be too concerned. Do you exercise a lot? Males tend to have slower heart rates than females and exercising can bring it down more. I don't know that 35 bpm is unheard of at sleep but it is pretty slow. I would push sorting that out as opposed to the premature beats though it could just be reading slow because of the premature beats when it really isn't going that slow. But if you are having symptoms of difficulty breathing or chest pain I would push your doctor to get a cardiologist referral. Just to at least take a look at the slow rate.