Yes the above poster is absolutely correct. If the heart evaluation was complete and if he has normal function then PACs are inconsequential and only a source of nuisance for the symptoms they cause to the patients. Stress relief, improvement in diet and exercise all have been linked to improvement in the perception of these extra beats. In refractory cases anti arrhythmic drugs or beta blockers have been used, depending on the mechanism of the PACs to control frequent firings.
Premature Atrial Contractions are usually harmless and can be caused by several different things like a viral infection, often times there is no know reason. These PAC's tend to be benign by themselves but can lead to other atrial arthymias like a flutter or a fib. Patients with this condition should be seen by a caridologist for complete work up. Many times changes in lifestyle (diet, excercise, etc...) can be enough to resolve this. Either way a complete work up is indicated. If the doctor noted above is a cardiologist and your husband has had a complete cardiac work up / eval then I would agree - but lifestyle changes can always help the patient's overall health as well.