Swiss Study on Subarachnoid Hemorrhage

Official title

Swiss Study on Subarachnoid Hemorrhage (Swiss-SOS)

Overview

This registry was created to assess management parameters of patients treated for aneurysmal subarachnoid hemorrhage in Switzerland. All Swiss hospitals with a neurosurgery department, an intensive care unit and an interventional neuroradiology team that treat neurovascular emergencies participate in the registry. Clinical parameters are entered into a common database. This database will provide (1) a nationwide assessment of the current standard of care and (2) the outcomes for patients in Switzerland including neuropsychological assessments.

Detailed description

Overview:

The management of aneurysmal subarachnoid hemorrhage (aSAH) in Switzerland has not been assessed on a national level to date. The investigators united all comprehensive neurovascular care centres in Switzerland to create a registry for aSAH. This registry helps collect clinical and management data from different centres and pools it in one common database. It may provide referring caregivers and healthcare providers with a critical tool to assess the quality of care in a disease which has a high socio-economic burden. Moreover, it may serve as a tool to foster scientific collaboration and address a number of remaining questions about the management of aSAH in the future. Regarding SAH, data from the federal statistics bureau of Switzerland are based strictly on ICD-10 codes provided by hospitals and show an estimate of 13 per 100,000 in a population of roughly 8 million (http://bfs.admin.ch). These numbers, however, are not referring to aneurismal SAH exclusively and thus exceed the numbers which the investigators expect to obtain. The goal is to obtain complete recruitment of SAH patients throughout Switzerland, and the goal is therefore that assessment of incidence will be performed later on.

Data management:

Data is entered into a central online database created by the Secutrial platform. This platform is provided by the University Hospital of Geneva's Clinical Research Unit. The database disposes of an audit-trail capacity. Local principal investigators are responsible for data-cross check and quality management. Source data verification is performed by investigators on site who address missing data. Regular meetings are held to discuss data patency.

The platform automatically provides a report on recruitment progress.

Interventions

• Other Observational/ no intervention

Primary outcome measures

• Functional outcome as assessed by the modified Rankin scale [Time frame: 5 years after hemorrhage]

Eligibility criteria

Inclusion criteria

\- Patients admitted with a proven diagnosis of aneurysmal subarachnoid hemorrhage.

Exclusion criteria

\- Patients in whom the source of haemorrhage could not be identified (angiogram-negative SAH) or SAH with other causes than cerebral aneurysms.

Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.

Healthy volunteers: No

Study design

Observational model

Cohort

Study locations

Switzerland · 9 centers

• Kantonsspital Aarau — Aarau
• Geneva University Hospital — Geneva
• Kantonsspital St. Gallen — Sankt Gallen
• University Hospital Basel — Basel
• University Hospital Bern — Bern
• University Hospital Lausanne — Lausanne
• Luzerner Kanton Spital — Lucerne
• Ospedale Civico — Lugano
• … and 1 more center

Publications

• Zweifel-Zehnder AE, Stienen MN, Chicherio C, Studerus-Germann A, Blasi S, Rossi S, Gutbrod K, Schmid N, Beaud V, Mondadori C, Brugger P, Sacco L, Muri R, Hildebrandt G, Fournier JY, Keller E, Regli L, Fandino J, Mariani L, Raabe A, Daniel RT, Reinert M, Robert T, Schatlo B, Bijlenga P, Schaller K, Monsch AU; Swiss SOS study group. Call for uniform neuropsychological assessment after aneurysmal sub PMID 26179382
• Schatlo B, Fung C, Fathi AR, Sailer M, Winkler K, Daniel RT, Bijlenga P, Ahlborn P, Seule M, Zumofen D, Reinert M, Woernle C, Stienen M, Levivier M, Hildebrandt G, Mariani L, Bernays R, Fandino J, Raabe A, Keller E, Schaller K. Introducing a nationwide registry: the Swiss study on aneurysmal subarachnoid haemorrhage (Swiss SOS). Acta Neurochir (Wien). 2012 Dec;154(12):2173-8; discussion 2178. doi: PMID 23053275
• Schatlo B, Fung C, Stienen MN, Fathi AR, Fandino J, Smoll NR, Zumofen D, Daniel RT, Burkhardt JK, Bervini D, Marbacher S, Reinert M, D Alonzo D, Ahlborn P, Mendes Pereira V, Roethlisberger M, Seule M, Kerkeni H, Remonda L, Weyerbrock A, Woernle K, Venier A, Perren F, Sailer M, Robert T, Rohde V, Schoni D, Goldberg J, Nevzati E, Diepers M, Gralla J, Z'Graggen W, Starnoni D, Woernle C, Maldaner N, K PMID 33272133
• Stienen MN, Smoll NR, Fung C, Goldberg J, Bervini D, Maduri R, Chiappini A, Robert T, May A, Bijlenga P, Zumofen D, Roethlisberger M, Seule MA, Marbacher S, Fandino J, Schatlo B, Schaller K, Keller E, Bozinov O, Regli L; Swiss SOS Study Group. Home-Time as a Surrogate Marker for Functional Outcome After Aneurysmal Subarachnoid Hemorrhage. Stroke. 2018 Dec;49(12):3081-3084. doi: 10.1161/STROKEAHA.1 PMID 30735342
• Stienen MN, Germans M, Burkhardt JK, Neidert MC, Fung C, Bervini D, Zumofen D, Rothlisberger M, Marbacher S, Maduri R, Robert T, Seule MA, Bijlenga P, Schaller K, Fandino J, Smoll NR, Maldaner N, Finkenstadt S, Esposito G, Schatlo B, Keller E, Bozinov O, Regli L; Swiss SOS Study Group. Predictors of In-Hospital Death After Aneurysmal Subarachnoid Hemorrhage: Analysis of a Nationwide Database (Swis PMID 29335333

Identifiers

NCT: NCT03245866 · SwissSOS_0001

Primary sources (government registries)

• ClinicalTrials.gov (US NIH)

View this study on ClinicalTrials.gov ↗