ArticleJournal of Korean medical science2026
Nocturnal Atrioventricular Block: Natural History and Clinical Implications.
Article in Journal of Korean medical science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundAtrioventricular block (AVB) occurring exclusively at night has traditionally been considered a result of increased vagal tone and thought to have a favorable prognosis. While nocturnal AVB is generally not an indication for pacemaker implantation, supporting evidence remains limited. This study aimed to assess the natural history of nocturnal AVB.
methodsPatients with 2:1, high-degree, or complete AVB (CAVB) detected exclusively during nighttime (21:00-07:00) on 24-hour electrocardiogram (ECG) monitoring were classified as having nocturnal AVB. The primary outcome was pacemaker implantation during the follow-up period.
resultsA total of 10,977 individuals underwent 24-hour ECG monitoring in Seoul St. Mary's Hospital between January 2000 and June 2020. Among them, 342 patients were diagnosed with CAVB, high-degree AVB, or 2:1 AVB, and 92 of these 342 patients had nocturnal AVB. Excluding 11 patients lost to follow-up, 81 patients were enrolled. Fourteen patients underwent immediate pacemaker implantation due to daytime bradycardia symptoms, while the remaining 67 patients underwent watchful waiting. During a median follow-up period of 2.4 years, 14 of these 67 patients received pacemaker implantation (n: CAVB 5/14, high-degree AVB 4/14, 2:1 AVB 5/14). The indications for pacemaker insertion included the development of bradycardia symptoms or signs (n = 13) and sick sinus syndrome (n = 1) during the daytime.
conclusionDespite being asymptomatic during the daytime, 21% (14/67) of patients with nocturnal AVB required pacemaker implantation during a median follow-up period of 2.4 years. These findings suggest that active surveillance is needed even in patients with nocturnal AVB.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.