{"_buckets": {"deposit": "88a32a86-c5b5-4ed7-bf9a-418bd791a0ed"}, "_deposit": {"id": "15068", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "15068"}, "status": "published"}, "_oai": {"id": "oai:niigata-u.repo.nii.ac.jp:00015068", "sets": ["456", "1080"]}, "item_7_alternative_title_1": {"attribute_name": "その他のタイトル", "attribute_value_mlt": [{"subitem_alternative_title": "Abrupt Loss of Constant Fusion During Entrainment of Ventricular Tachycardia at a Critical Paced Cycle Length : An Evidence of Orthodromic Block?"}]}, "item_7_biblio_info_6": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2000-12", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "12", "bibliographicPageEnd": "472", "bibliographicPageStart": "461", "bibliographicVolumeNumber": "114", "bibliographic_titles": [{"bibliographic_title": "新潟医学会雑誌"}, {"bibliographic_title": "新潟医学会雑誌", "bibliographic_titleLang": "en"}]}]}, "item_7_description_4": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "Sustained monomorphic ventricular tachycardia (VT) can be frequently entrained and interrupted with rapid pacing and the mechanism of the pacing-induced interruption is considered to be due to orthodromic block. This study focused on the incidence of VT which was interrupted at a critical cycle length and was characterized by an abrupt loss of constant fusion in the surface electrocardiogram (ECG). A role of orthodromic block as the cause of such characteristic change and interruption of VT was discussed. Among 45 consecutive patients with symptomatic VT, rapid pacing was performed in 43 VTs of 39 patients. The exit was mapped as the earliest site of the activation during VT and an electrode catheter was located at the site. Rapid pacing was performed at progressively shorter cycle lengths in steps of 10 msec until VT was interrupted and the timing of the orthodromic and direct capture was compared at the exit. Abrupt loss of constant fusion was observed in 25 of 39 patients (64.1%)： and the loss was invariably associated with interruption of VT. When the timings of the activation of the exit were compared, which were measured from the preceding (n-1) stimulus as the time reference, the direct capture was relatively delayed compared to that of the orthodromic capture. This finding suggests that orthodromic block is the cause of the direct capture as well as the pacing-induced interruption of VT. In remaining 13 patients (35.9%), the surface ECG showed a gradual transition into the fully paced QRS morphology. The direct capture was confirmed in the nonfused beats, but it was not necessarily associated with interruption of VT. The interval from the stimulus to the entrained electrogram at the exit showed a gradual prolongation until the exit was finally captured directly from the pacing site. The confirmation of constant fusion followed by abrupt loss can be the hallmark of orthodromic block as the cause of the interruption of VT during transient entrainment at a critical paced cycle length.", "subitem_description_type": "Abstract"}]}, "item_7_full_name_3": {"attribute_name": "著者別名", "attribute_value_mlt": [{"nameIdentifiers": [{"nameIdentifier": "96911", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Yamaura, Masayuki"}]}]}, "item_7_publisher_7": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "新潟医学会"}]}, "item_7_select_19": {"attribute_name": "著者版フラグ", "attribute_value_mlt": [{"subitem_select_item": "publisher"}]}, "item_7_source_id_11": {"attribute_name": "書誌レコードID", "attribute_value_mlt": [{"subitem_source_identifier": "AN00182415", "subitem_source_identifier_type": "NCID"}]}, "item_7_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "00290440", "subitem_source_identifier_type": "ISSN"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "山浦, 正幸"}], "nameIdentifiers": [{"nameIdentifier": "96910", "nameIdentifierScheme": "WEKO"}]}]}, "item_files": {"attribute_name": "ファイル情報", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2019-08-07"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "114(12)_461-472.pdf", "filesize": [{"value": "1.9 MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 1900000.0, "url": {"label": "114(12)_461-472.pdf", "url": "https://niigata-u.repo.nii.ac.jp/record/15068/files/114(12)_461-472.pdf"}, "version_id": "3855bcbd-1a34-4506-b6fc-01c5b8d41128"}]}, "item_keyword": {"attribute_name": "キーワード", "attribute_value_mlt": [{"subitem_subject": "Sustained ventricular tachycardia", "subitem_subject_scheme": "Other"}, {"subitem_subject": "transient entrainment", "subitem_subject_scheme": "Other"}, {"subitem_subject": "loss of constant fusion", "subitem_subject_scheme": "Other"}, {"subitem_subject": "orthodromic block", "subitem_subject_scheme": "Other"}, {"subitem_subject": "持続性心室頻拍", "subitem_subject_scheme": "Other"}, {"subitem_subject": "エントレーンメント現象", "subitem_subject_scheme": "Other"}, {"subitem_subject": "安定融合波の消失", "subitem_subject_scheme": "Other"}, {"subitem_subject": "順行性ブロック", "subitem_subject_scheme": "Other"}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "jpn"}]}, "item_resource_type": {"attribute_name": "資源タイプ", "attribute_value_mlt": [{"resourcetype": "departmental bulletin paper", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "心室性頻拍のエントレーン中における定常融合波の突然の消失の意義 : 順行性ブロックの証拠となり得るか?", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "心室性頻拍のエントレーン中における定常融合波の突然の消失の意義 : 順行性ブロックの証拠となり得るか?"}, {"subitem_title": "心室性頻拍のエントレーン中における定常融合波の突然の消失の意義 : 順行性ブロックの証拠となり得るか?", "subitem_title_language": "en"}]}, "item_type_id": "7", "owner": "1", "path": ["456", "1080"], "permalink_uri": "http://hdl.handle.net/10191/49258", "pubdate": {"attribute_name": "公開日", "attribute_value": "2017-11-21"}, "publish_date": "2017-11-21", "publish_status": "0", "recid": "15068", "relation": {}, "relation_version_is_last": true, "title": ["心室性頻拍のエントレーン中における定常融合波の突然の消失の意義 : 順行性ブロックの証拠となり得るか?"], "weko_shared_id": null}