It could be a late ectopic beat. In the setting of PVCs, they may "merge" with the next normal heart beat, so-called fusion beats. A normal and benign phenomenon.
It could be a so-called escape beat; another "pacemaker" in the heart fires a heart beat because your heart rate is slow. This function is essential because it prevents your heart from stopping if your sinus node for some reason should fail. The heart has a lot of "backup" pacemakers (which is the reason why we get PACs and PVCs). Also usually a normal phenomenon at night, but ask your doctor.
Copyright 1994-2016 MedHelp International. All rights reserved.
MedHelp is a division of Aptus Health.
This site complies with the HONcode standard for trustworthy health information.
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. Med Help International, Inc. is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.