PMC:6019327 / 718301-718634 JSONTXT

{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/6019327","sourcedb":"PMC","sourceid":"6019327","source_url":"https://www.ncbi.nlm.nih.gov/pmc/6019327","text":"Exit block Exit block is defined as the inability to capture the atrium during pacing at multiple sites within the PV antrum. Local capture of musculature within the pulmonary veins and/or antrum must be documented to be present to make this assessment. Exit block is demonstrated by a dissociated spontaneous pulmonary vein rhythm.","divisions":[{"label":"td","span":{"begin":0,"end":10}}],"tracks":[]}