Altreuther Martin, Grima Matthew J
Department of Vascular Surgery, St Olavs Hospital, Trondheim, Norway.
Department of Vascular Surgery, Mater Dei University Hospital, Msida, Malta; Department of Surgical Sciences, Vascular Surgery, Uppsala University, Uppsala, Sweden.
Eur J Vasc Endovasc Surg. 2025 Mar;69(3):350-356. doi: 10.1016/j.ejvs.2024.10.016. Epub 2024 Oct 12.
Data validity and completeness are essential for registry data, and a meaningful interpretation of differences between countries can only be made if the data are robust within each of the countries. Therefore, the VASCUNET collaboration has performed validation of several vascular registries and so far published the validation results of national vascular registries of Sweden, Denmark, and Malta. The findings of the validation of the Swissvasc Registry, the vascular registry of Switzerland, are presented here.
Five of 34 hospitals participating in Swissvasc were visited by two international validators. Independent evaluation of the procedures of carotid endarterectomy, infrarenal abdominal aortic aneurysm (AAA) repair, and bypass surgery for lower extremity arterial disease (LEAD) was performed. Local administrative data and Swissvasc Registry data were compared for external validation, as well as registry data of 15 randomly picked cases within each group with data from individual patient records for internal validation.
Hospital administrative data identified 265 carotid, 399 AAA, and 399 LEAD procedures, whereas Swissvasc identified 265 carotid, 398 AAA, and 395 LEAD procedures. Four LEAD procedures were found in hospital administrative data but not in Swissvasc. External validity was 100% for carotid, 99.8% for AAA, and 99% for LEAD. In internal validation, 5.2% of the variable data were missing in Swissvasc, and 2.4% were different from data in patient records, resulting in external validity of 92.8% for carotid, 94.4% for AAA, and 90.1% for LEAD.
The VASCUNET template was used for international validation of registry data and demonstrated that Swissvasc is a reliable system of quality data collection for the participating vascular centres, with excellent external validity and good internal validity. Quality of the Swissvasc registry data was clearly superior to local administrative data.
数据有效性和完整性对登记数据至关重要，只有当各国的数据都可靠时，才能对各国之间的差异进行有意义的解读。因此，VASCUNET合作项目对多个血管登记处进行了验证，目前已发表了瑞典、丹麦和马耳他国家血管登记处的验证结果。本文展示了瑞士血管登记处（Swissvasc）——瑞士的血管登记项目——的验证结果。
两名国际验证人员走访了参与Swissvasc的34家医院中的5家。对颈动脉内膜切除术、肾下腹主动脉瘤（AAA）修复术以及下肢动脉疾病（LEAD）搭桥手术的流程进行了独立评估。为进行外部验证，将当地行政数据与Swissvasc登记处数据进行了比较，同时，为进行内部验证，将每组中随机抽取的15例病例的登记处数据与个体患者记录数据进行了比较。
医院行政数据识别出265例颈动脉手术、399例AAA手术和399例LEAD手术，而Swissvasc识别出265例颈动脉手术、398例AAA手术和395例LEAD手术。在医院行政数据中发现了4例LEAD手术，但Swissvasc中未发现。颈动脉手术的外部有效性为100%，AAA手术为99.8%，LEAD手术为99%。在内部验证中，Swissvasc中有5.2%的可变数据缺失，2.4%的数据与患者记录中的数据不同，导致颈动脉手术的外部有效性为92.8%，AAA手术为94.4%，LEAD手术为90.1%。
VASCUNET模板用于登记处数据的国际验证，结果表明，Swissvasc对于参与的血管中心而言是一个可靠的高质量数据收集系统，具有出色的外部有效性和良好的内部有效性。Swissvasc登记处数据的质量明显优于当地行政数据。
