- ICH GCP
- US Clinical Trials Registry
- Klinisk utprøving NCT07786623
Spectroscopic Assessment of Tissue Oxygenation Changes During Vascular Surgery
25. august 2026 oppdatert av: Spectrocor
This study is a single-center, observational study designed to collect tissue spectrometric data related to tissue oxygenation.
Studieoversikt
Status
Har ikke rekruttert ennå
Detaljert beskrivelse
A total of 30 participants, aged 18 or older, undergoing planned elective primary vascular surgery will be recruited in this investigation to assess the ability of the SpectroCor Tissue Oxygenation Monitor and its accessory SpectroCor Sensor to monitor peripheral tissue oxygenation perioperatively.
The investigation is designed as an open, uncontrolled observational study in which the primary goal is to assess the Monitor's ability, in combination with the Sensor, to monitor tissue oxygenation and safety in routine clinical practice, reflecting the real-world patient population and treatment scenarios.
Therefore, no control participants are needed in this investigation.
Studietype
Observasjonsmessig
Registrering (Antatt)
30
Kontakter og plasseringer
Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.
Studiekontakt
- Navn: Kalle Kotilahti
- Telefonnummer: +358449016550
- E-post: kalle@spectrocor.com
Studer Kontakt Backup
- Navn: Tommi Pätilä, PhD
- Telefonnummer: +358 440130770
- E-post: tommi@spectrocor.com
Deltakelseskriterier
Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
- Voksen
- Eldre voksen
Tar imot friske frivillige
Nei
Prøvetakingsmetode
Ikke-sannsynlighetsprøve
Studiepopulasjon
A Helsinki University Hospital patient scheduled for a vascular surgical operation.
Beskrivelse
Inclusion Criteria:
- Adults, age of 18 - 90 years
- Scheduled for peripheral arterial bypass surgery.
- Scheduled for proximal arterial reconstruction.
- Ability and willingness to provide informed consent.
Exclusion Criteria:
- Inability to provide informed consent
- Considered a vulnerable person according to the Finnish Medical Research Act (488/1999), Chapter 2, Sections 7, 9, and 10, including retarded persons, pregnant women, nursing mothers, prisoners, and forensic patients.
- A known history of severe allergic reaction to nickel.
Studieplan
Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.
Hvordan er studiet utformet?
Designdetaljer
Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Observe changes in skeletal muscle tissue oxygenation
Tidsramme: From sensor placement prior to arterial clamping until restoration of limb blood circulation and completion of vascular reconstruction quality control (intraoperative period, approximately 2-6 hours)
|
To observe the changes in skeletal muscle tissue oxygenation (combined hemoglobin/myoglobin saturation, %) measured by the SpectroCor Monitoring System during arterial clamping and restoration of limb perfusion.
Continuous spectroscopic measurement of combined hemoglobin and myoglobin oxygen saturation in skeletal muscle of the operated limb, recorded from a SpectroCor Sensor placed in the distal wound before any arterial clamping.
Saturation values are time-stamped against intraoperative events affecting limb perfusion (proximal arterial clamping, unclamping, graft revision) and compared with paired arterial and venous blood gas samples obtained before clamping and after restoration of blood flow.
|
From sensor placement prior to arterial clamping until restoration of limb blood circulation and completion of vascular reconstruction quality control (intraoperative period, approximately 2-6 hours)
|
Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Incidence of adverse events, adverse device effects, and device deficiencies
Tidsramme: From sensor placement during the operation until discharge from hospital (up to 30 days)
|
Number and proportion of participants experiencing at least one adverse event (AE), adverse device effect (ADE), serious adverse event (SAE), serious adverse device effect (SADE), or unanticipated serious adverse device effect (USADE), and the number of device deficiencies (DD) recorded.
Events are recorded from the time of sensor placement until discharge from hospital and assessed for causal relationship to the investigational device by the investigator.
Anticipated device-related events include topical bleeding at the sensor attachment site, local tissue reaction associated with tissue glue fixation, and local infection at the insertion site.
|
From sensor placement during the operation until discharge from hospital (up to 30 days)
|
Samarbeidspartnere og etterforskere
Det er her du vil finne personer og organisasjoner som er involvert i denne studien.
Sponsor
Samarbeidspartnere
Etterforskere
- Hovedetterforsker: Maarit Venermo, Professor, Helsinki University Hospital (HUS)
Publikasjoner og nyttige lenker
Den som er ansvarlig for å legge inn informasjon om studien leverer frivillig disse publikasjonene. Disse kan handle om alt relatert til studiet.
Generelle publikasjoner
- Ali J, Cody J, Maldonado Y, Ramakrishna H. Near-Infrared Spectroscopy (NIRS) for Cerebral and Tissue Oximetry: Analysis of Evolving Applications. J Cardiothorac Vasc Anesth. 2022 Aug;36(8 Pt A):2758-2766. doi: 10.1053/j.jvca.2021.07.015. Epub 2021 Jul 10.
- Keller A. Noninvasive tissue oximetry for flap monitoring: an initial study. J Reconstr Microsurg. 2007 May;23(4):189-97. doi: 10.1055/s-2007-974655.
- Keller A. A new diagnostic algorithm for early prediction of vascular compromise in 208 microsurgical flaps using tissue oxygen saturation measurements. Ann Plast Surg. 2009 May;62(5):538-43. doi: 10.1097/SAP.0b013e3181a47ce8.
- Steele MH. Three-year experience using near infrared spectroscopy tissue oximetry monitoring of free tissue transfers. Ann Plast Surg. 2011 May;66(5):540-5. doi: 10.1097/SAP.0b013e31820909f9.
- Chen Y, Shen Z, Shao Z, Yu P, Wu J. Free Flap Monitoring Using Near-Infrared Spectroscopy: A Systemic Review. Ann Plast Surg. 2016 May;76(5):590-7. doi: 10.1097/SAP.0000000000000430.
- Tran PC, DeBrock W, Lester ME, Hartman BC, Socas J, Hassanein AH. The False Positive Rate of Transcutaneous Tissue Oximetry Alarms in Microvascular Breast Reconstruction Rises after 24 Hours. J Reconstr Microsurg. 2021 Jun;37(5):453-557. doi: 10.1055/s-0040-1719048. Epub 2020 Oct 31.
- Schanzer A, Hevelone N, Owens CD, Belkin M, Bandyk DF, Clowes AW, Moneta GL, Conte MS. Technical factors affecting autogenous vein graft failure: observations from a large multicenter trial. J Vasc Surg. 2007 Dec;46(6):1180-90; discussion 1190. doi: 10.1016/j.jvs.2007.08.033.
- Eiberg JP, Schroeder TV, Vogt KC, Secher NH. Near-infrared spectroscopy during peripheral vascular surgery. Cardiovasc Surg. 1997 Jun;5(3):304-8. doi: 10.1177/096721099700500309.
- Dubosq M, Goueffic Y, Duhamel A, Denies F, Dervaux B, Goyault G, Sobocinski J. Optical Coherence Tomography Contribution Assessment in the Revascularization of Long Femoropopliteal Occlusive Lesions (TASC C and D): A Randomized Trial. Ann Vasc Surg. 2021 Jan;70:362-369. doi: 10.1016/j.avsg.2020.06.061. Epub 2020 Jul 4.
Studierekorddatoer
Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.
Studer hoveddatoer
Studiestart (Antatt)
1. desember 2026
Primær fullføring (Antatt)
31. desember 2027
Studiet fullført (Antatt)
31. juli 2031
Datoer for studieregistrering
Først innsendt
20. august 2026
Først innsendt som oppfylte QC-kriteriene
25. august 2026
Først lagt ut (Faktiske)
26. august 2026
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
26. august 2026
Siste oppdatering sendt inn som oppfylte QC-kriteriene
25. august 2026
Sist bekreftet
1. august 2026
Mer informasjon
Begreper knyttet til denne studien
Nøkkelord
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- SpC Vascular
Plan for individuelle deltakerdata (IPD)
Planlegger du å dele individuelle deltakerdata (IPD)?
NEI
IPD-planbeskrivelse
Individual participant data will not be shared.
Participant consent and the approved Clinical Investigation Plan do not cover secondary sharing of individual-level data, and the sponsor's obligations under Regulation (EU) 2016/679 (GDPR) preclude onward transfer without a valid legal basis.
Aggregate results will be published in accordance with the publication policy and made publicly available in EUDAMED, and the clinical investigation report will be submitted to the competent authority within one year of the end of the investigation.
Legemiddel- og utstyrsinformasjon, studiedokumenter
Studerer et amerikansk FDA-regulert medikamentprodukt
Nei
Studerer et amerikansk FDA-regulert enhetsprodukt
Nei
Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .