Glossary

Author: Glossary

  • Failure of artificial pacemaker

    A defect in a pacemaker device caused by either a failure to sense the patient’s intrinsic beat or a failure to pace. Failure to pace can be caused by a worn-out battery, fracture or displacement of the electrode, or pulse generator defect.  

  • Dual-chamber pacemaker

    A pacemaker that is also known as an atrioventricular sequential pacemaker because it stimulates both atria and ventricles sequentially.  

  • Demand pacemaker

    An implanted pacemaker that is designed to permit its electrical output to be inhibited by the heart’s electrical impulses. This decreases the chances for the pacemaker to induce discomfort or dysrhythmias. An enduring synthetic cardiac pacemaker, a device that emits electrical signals to uphold a consistent heart rhythm, exclusively releases impulses when the heart rate…

  • Artificial cardiac pacemaker

    A device that can trigger mechanical contractions of the heart by emitting periodic electrical discharges. If the device delivers electricity through the chest wall, it is called a transcutaneous pacemaker; if it works via electrodes inserted inside the body, it is called an internal or implantable pacemaker. Pacemakers are used most often to treat patients…

  • Pacchionian depressions

    Small pits produced on the inner surface of the skull by protuberance of the pacchionian bodies (arachnoid villi).  

  • Ozonize

    To convert oxygen to ozone.  

  • Ozonization

    The act of converting to, or impregnating with, ozone.  

  • Oyster mushroom

    An edible fungus, Pleurotus ostreatus, used in the diet as an antioxidant and cholesterol-lowering agent.  

  • Oxyuricide

    An agent that is destructive to pinworms.  

  • Oxytalan

    A type of connective tissue fiber present in periodontal tissues.