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        "domain": "Cardiovascular and respiratory medicine"
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      "statement": "# Haïssaguerre and colleagues: pulmonary-vein triggers of atrial fibrillation\n\nMapped spontaneous initiation of atrial fibrillation in 45 drug-refractory patients, localized most triggering foci to pulmonary veins and reported short-follow-up outcomes after focal ablation.\n\n## Scientific scope\n\nThe record is the exact ten-author 1998 New England Journal of Medicine study. Its selected cohort, mapping protocol and short follow-up do not establish general comparative efficacy, modern procedural safety or every mechanism of atrial fibrillation.\n\n## Reading status\n\nThis is a source-linked WRS catalogue note. A full explanatory guide and independent scientific reconstruction have not been completed for this entry. Read the identified original work for its complete narrative and arguments.\n\n## People and systems\n\nMichel Haïssaguerre; Pierre Jaïs; Dipen C. Shah; Atsushi Takahashi; Mélèze Hocini; Gilles Quiniou; Stéphane Garrigue; Alain Le Mouroux; Philippe Le Métayer; Jacques Clémenty\n\nThe named authors contributed to this scoped work; individual effort shares and later applications are not assigned by the byline.\n\n\n\n## Original sources\n\n- [NEJM paper on pulmonary-vein atrial-fibrillation triggers](https://doi.org/10.1056/NEJM199809033391003)\n- [PubMed record for pulmonary-vein atrial-fibrillation study](https://pubmed.ncbi.nlm.nih.gov/9725923/)\n",
      "summary": "Mapped spontaneous initiation of atrial fibrillation in 45 drug-refractory patients, localized most triggering foci to pulmonary veins and reported short-follow-up outcomes after focal ablation.",
      "title": "Haïssaguerre and colleagues: pulmonary-vein triggers of atrial fibrillation"
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