- ICH GCP
- US Clinical Trials Registry
- Klinisk utprøving NCT07638280
Non-Pharmacological Factors on Spinal Block Duration
Analysis of Non-pharmacological Factors on Spinal Anaesthesia Block Duration
Studieoversikt
Status
Intervensjon / Behandling
Detaljert beskrivelse
It is well known that the level of sensory and motor block following spinal anesthesia varies among individuals. This variability is not only related to the dose of local anesthetic but has also been reported to be associated with patient-related non-pharmacological factors. In particular, a relationship has been demonstrated between body mass index (BMI) and both the level and duration of spinal block, with higher block levels and prolonged block duration observed in patients with increased BMI. This phenomenon is thought to be associated with epidural venous distension due to increased intra-abdominal pressure and a reduction in subarachnoid cerebrospinal fluid (CSF) volume. A decrease in CSF volume may facilitate greater cephalad spread of intrathecal local anesthetic agents, thereby prolonging block duration.
Paraspinal muscle mass is also an important anatomical parameter that may influence intra-abdominal pressure and epidural space compliance, and thus may play a determining role in the spread of spinal anesthesia. However, although several studies have investigated the relationship between BMI and body composition and spinal block characteristics, the number of clinical studies directly evaluating the association between ultrasonographically measured paraspinal muscle mass and spinal anesthesia block duration remains limited. Therefore, ultrasonographic measurement of paraspinal muscle thickness may serve as a potential predictor of spinal block duration.
Studietype
Registrering (Antatt)
Kontakter og plasseringer
Studiekontakt
- Navn: Leyla Sivacigil, MD
- Telefonnummer: 905065983478
- E-post: veralleyla@hotmail.com
Studer Kontakt Backup
- Navn: Guray Demir, Proffesor
- Telefonnummer: 90 5052113989
- E-post: guraydemir@gmail.com
Studiesteder
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-
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Istanbul, Tyrkia (Türkiye), 34000
- Rekruttering
- Taksim Training and Research Hospital
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Ta kontakt med:
- Leyla Sivacigil, MD
- Telefonnummer: 905065983478
- E-post: veralleyla@hotmail.com
-
Hovedetterforsker:
- Leyla Sivacigil, MD
-
Ta kontakt med:
- Guray Demir, Proffesor
- Telefonnummer: 905052113989
- E-post: guraydemir@gmail.com
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-
Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
- Voksen
- Eldre voksen
Tar imot friske frivillige
Prøvetakingsmetode
Studiepopulasjon
Beskrivelse
Inclusion Criteria:
- Patients aged 18-80 years
- ASA physical status I-III
- Patients scheduled for elective lower abdominal surgery.
Exclusion Criteria:
- Patient refusal to participate
- Coagulopathy
- Use of medications or substances known to impair coagulation
- Pregnancy, sepsis
- Shock
- Severe aortic or mitral regurgitation
- Peripheral vascular disease
- Increased intracranial pressure
- Mental disorders
- Spinal column deformity
- History of previous spinal surgery.
Studieplan
Hvordan er studiet utformet?
Designdetaljer
Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Paraspinal mass measurement with ultrasound.
Tidsramme: Pre-operative
|
Ultrasonographic measurement of paraspinal muscle thickness (cm) and its association with duration of spinal block will be investigated.
|
Pre-operative
|
Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
The spread of the spinal block
Tidsramme: Perioperative/Periprocedural
|
The speed of the sensational block will be measured after spinal anaesthesia performed. Time(minute) will be recorded when T10 level sensational block is achieved. |
Perioperative/Periprocedural
|
Samarbeidspartnere og etterforskere
Etterforskere
- Hovedetterforsker: Leyla Sivacigil, Taksim Training and Research Hospital
Publikasjoner og nyttige lenker
Generelle publikasjoner
- Kahveci M, Ugur L. The Effect of Injection Parameters on Drug Distribution for Spinal Anesthesia: A Numerical Approach. J Clin Med. 2025 Sep 3;14(17):6236. doi: 10.3390/jcm14176236.
- Paliwal N, Khan IA. Exploring Variability in Spinal Anesthesia Levels Achieved During Cesarean Section Deliveries: A Narrative Review. Cureus. 2025 Jul 21;17(7):e88429. doi: 10.7759/cureus.88429. eCollection 2025 Jul.
- Belavy DL, Armbrecht G, Felsenberg D. Real-time ultrasound measures of lumbar erector spinae and multifidus: reliability and comparison to magnetic resonance imaging. Physiol Meas. 2015 Nov;36(11):2285-99. doi: 10.1088/0967-3334/36/11/2285. Epub 2015 Oct 9.
Studierekorddatoer
Studer hoveddatoer
Studiestart (Faktiske)
Primær fullføring (Antatt)
Studiet fullført (Antatt)
Datoer for studieregistrering
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Faktiske)
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Nøkkelord
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- 2026.02.IRB.121
Plan for individuelle deltakerdata (IPD)
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IPD-planbeskrivelse
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