- ICH GCP
- US Clinical Trials Registry
- Klinisk utprøving NCT07675616
Hemodynamic Effect of Dexmedetomidine Versus Magnesium Sulphate as an Adjuvant to Lidocaine in Preemptive Peribulbar Block in Patients Undergoing Dacryocystorhinostomy Under General Anesthesia
Hemodynamic Effect of Dexmedetomidine Versus Magnesium Sulphate as an Adjuvant to Lidocaine in Preemptive Peribulbar Block in Patients Undergoing Dacryocystorhinostomy Under General Anesthesia: A Randomized Controlled Trial
Studieoversikt
Status
Forhold
Intervensjon / Behandling
Detaljert beskrivelse
Dacryocystorhinostomy (DCR) is a delicate ophthalmic surgical procedure aimed at reestablishing the patency of the nasolacrimal duct in patients suffering from nasolacrimal duct obstruction (NLDO).
Magnesium is a non-competitive N-methyl-D-aspartate (NMDA) receptors antagonist, and it can decrease the excitatory post synaptic currents produced by activation of NMDA receptors and it inhibits voltage gated calcium channels.
Dexmedetomidine alpha-2 agonist, which stimulates both central and peripheral alpha-2 receptors which inhibits neuronal firing and inhibits release of C-fibers transmitters such as norepinephrine which inhibits nerve fiber action potential and explains the antinociceptive effects of dexmedetomidine.
Studietype
Registrering (Antatt)
Fase
- Ikke aktuelt
Kontakter og plasseringer
Studiekontakt
- Navn: Hebatullah S Abdelhamid, MD
- Telefonnummer: 00201044512277
- E-post: drhebasalah593@gmail.com
Studiesteder
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Cairo, Egypt, 12613
- Rekruttering
- Cairo University
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Ta kontakt med:
- Hebatullah S Abdelhamid, MD
- Telefonnummer: 00201044512277
- E-post: drhebasalah593@gmail.com
-
-
Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
- Voksen
- Eldre voksen
Tar imot friske frivillige
Beskrivelse
Inclusion Criteria:
- Age ≥ 18 years.
- Both sexes.
- American Society of Anesthesiologists (ASA) physical status I or II.
- Undergoing elective Dacryocystorhinostomy (DCR) surgery under general anesthesia.
Exclusion Criteria:
- Patients have local infection.
- Allergic reaction or complications of the local anaesthesia (LA).
- Coagulopathy defined as international normalized ratio (INR) > 1.5, platelet count < 100,000/mm³, or ongoing anticoagulant therapy not adequately discontinued.
- Uncontrolled systemic disease, defined as poorly controlled hypertension [systolic blood pressure (SBP) > 160 mmHg], uncontrolled diabetes mellitus (HbA1c > 8.5%), unstable ischemic heart disease, or decompensated hepatic or renal disease.
- Uncooperative patients.
Studieplan
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Behandling
- Tildeling: Randomisert
- Intervensjonsmodell: Parallell tildeling
- Masking: Dobbelt
Våpen og intervensjoner
Deltakergruppe / Arm |
Intervensjon / Behandling |
|---|---|
|
Eksperimentell: Group A
Patients will receive 5 ml of lidocaine 2% + 50 µg dexmedetomidine, with a total volume of 7 ml.
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Patients will receive 5 ml of lidocaine 2% + 50 µg dexmedetomidine, with a total volume of 7 ml.
|
|
Eksperimentell: Group B
Patients will receive 5 ml of lidocaine 2% + 100 mg magnesium sulphate 10%, with a total volume of 7 ml.
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Patients will receive 5 ml of lidocaine 2% + 100 mg magnesium sulphate 10%, with a total volume of 7 ml.
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Aktiv komparator: Group C
Patients will receive 7 ml of lidocaine 2% with no further additives.
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Patients will receive 7 ml of lidocaine 2% with no further additives.
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Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Change in mean arterial blood pressure
Tidsramme: Till the end of surgery (Up to 2 hours)
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The change in mean arterial blood pressure will be recorded at baseline, after induction of anesthesia, immediately before peribulbar block, after block administration, at skin incision, during osteotomy and lacrimal sac manipulation (oculocardiac reflexes-provoking steps), and every 5 minutes thereafter until the end of surgery.
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Till the end of surgery (Up to 2 hours)
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Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Grad av pasienttilfredshet
Tidsramme: 24 timer postoperativt
|
Graden av pasienttilfredshet vil bli vurdert på en 5-punkts Likert-skala pasienttilfredshet (1, ekstremt misfornøyd; 2, misfornøyd; 3, nøytral; 4, fornøyd; 5, ekstremt fornøyd)
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24 timer postoperativt
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Heart rate
Tidsramme: Till the end of surgery (Up to 2 hours)
|
Heart rate will be recorded at baseline, after induction of anesthesia, immediately before peribulbar block, after block administration, at skin incision, during osteotomy and lacrimal sac manipulation (oculocardiac reflexes-provoking steps), and every 5 minutes thereafter until the end of surgery.
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Till the end of surgery (Up to 2 hours)
|
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Oxygen saturation
Tidsramme: Till the end of surgery (Up to 2 hours)
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Oxygen saturation will be recorded at baseline, after induction of anesthesia, immediately before peribulbar block, after block administration, at skin incision, during osteotomy and lacrimal sac manipulation (oculocardiac reflexes-provoking steps), and every 5 minutes thereafter until the end of surgery.
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Till the end of surgery (Up to 2 hours)
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Degree of surgeon satisfaction
Tidsramme: 24 hours postoperatively
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Degree of surgeon satisfaction will be assessed on a 5-point Likert scale patient satisfaction (1, extremely dissatisfied; 2, unsatisfied; 3, neutral; 4, satisfied; 5, extremely satisfied)
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24 hours postoperatively
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Samarbeidspartnere og etterforskere
Sponsor
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
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- MS-141-2026 (14-5-2026)
Plan for individuelle deltakerdata (IPD)
Planlegger du å dele individuelle deltakerdata (IPD)?
IPD-planbeskrivelse
IPD-delingstidsramme
Tilgangskriterier for IPD-deling
IPD-deling Støtteinformasjonstype
- STUDY_PROTOCOL
Legemiddel- og utstyrsinformasjon, studiedokumenter
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