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The Effect of Trendelenburg Position on CCA Blood Flow

17. januar 2022 opdateret af: Jin-Tae Kim, Seoul National University Hospital

Influence of Anesthesia, Pneumoperitoneum, and Patient Position on Common Carotid Artery Blood Flow During Laparoscopic Gynecology Operation

The investigators will evaluate the change of the common carotid artery blood flow according to patient's position and penumoperitoneum.

Studieoversigt

Status

Afsluttet

Betingelser

Detaljeret beskrivelse

The study will include 20 patients undergoing gynecological surgery. The common carotid artery blood flow will be measured using Doppler US during the following conditions; supine position before induction of anesthesia, supine position immediately after induction of anesthesia, supine position with penumoperitoneum, head-down position with or without pneumoperitoneum.

Undersøgelsestype

Observationel

Tilmelding (Faktiske)

20

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

20 år til 70 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ja

Køn, der er berettiget til at studere

Alle

Prøveudtagningsmetode

Sandsynlighedsprøve

Studiebefolkning

patients undergoing gynecology surgery under trendelenburg position

Beskrivelse

Inclusion Criteria:

  • ASA class I,II
  • patients undergoing gynecology surgery under trendelenburg position
  • Age ranges from 20 to 70

Exclusion Criteria:

  • BMI > 32
  • Pregnancy
  • Patients who did not agree to study
  • Patients with allergies to the drugs used in this study
  • Patients with anatomical variations or lesions in cervical or cranial vascular portion
  • Patients with arrhythmia that may alter patient's cardiac output(e.g. artrial fibrillation)

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Change of the common carotid artery blood flow velocity
Tidsramme: 1) baseline, 2) Immediately after induction of anesthesia, 3) immediately after pneumoperitoneum, 4) immediately after Trendelenburg position with penumoperitoneum, 5) Immediately after desufflation in Trendelenburg position
Common carotid artery blood flow velocity is measured using Doppler US
1) baseline, 2) Immediately after induction of anesthesia, 3) immediately after pneumoperitoneum, 4) immediately after Trendelenburg position with penumoperitoneum, 5) Immediately after desufflation in Trendelenburg position

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Change of the common carotid artery beat volume
Tidsramme: 1) baseline, 2) Immediately after induction of anesthesia, 3) immediately after pneumoperitoneum, 4) immediately after Trendelenburg position with penumoperitoneum, 5) Immediately after desufflation in Trendelenburg position
Common carotid artery beat volume was calculated from median common carotid artery beat velocity and vessel diameter
1) baseline, 2) Immediately after induction of anesthesia, 3) immediately after pneumoperitoneum, 4) immediately after Trendelenburg position with penumoperitoneum, 5) Immediately after desufflation in Trendelenburg position
Change of the common carotid artery diameter
Tidsramme: 1) baseline, 2) Immediately after induction of anesthesia, 3) immediately after pneumoperitoneum, 4) immediately after Trendelenburg position with penumoperitoneum, 5) Immediately after desufflation in Trendelenburg position
Common carotid artery diameter is obtained using US
1) baseline, 2) Immediately after induction of anesthesia, 3) immediately after pneumoperitoneum, 4) immediately after Trendelenburg position with penumoperitoneum, 5) Immediately after desufflation in Trendelenburg position
Change of mean arterial blood pressure
Tidsramme: 1) baseline, 2) Immediately after induction of anesthesia, 3) immediately after pneumoperitoneum, 4) immediately after Trendelenburg position with penumoperitoneum, 5) Immediately after desufflation in Trendelenburg position
Mean arterial pressure is obtained concurrently with common carotid artery blood flow velocity measurements
1) baseline, 2) Immediately after induction of anesthesia, 3) immediately after pneumoperitoneum, 4) immediately after Trendelenburg position with penumoperitoneum, 5) Immediately after desufflation in Trendelenburg position
Change of cardiac output
Tidsramme: 1) baseline, 2) Immediately after induction of anesthesia, 3) immediately after pneumoperitoneum, 4) immediately after Trendelenburg position with penumoperitoneum, 5) Immediately after desufflation in Trendelenburg position
Cardiac output was obtained using FloTrac(EdwardLifescience, USA)
1) baseline, 2) Immediately after induction of anesthesia, 3) immediately after pneumoperitoneum, 4) immediately after Trendelenburg position with penumoperitoneum, 5) Immediately after desufflation in Trendelenburg position
Change of peak inspiration airway pressure
Tidsramme: 1) baseline, 2) Immediately after induction of anesthesia, 3) immediately after pneumoperitoneum, 4) immediately after Trendelenburg position with penumoperitoneum, 5) Immediately after desufflation in Trendelenburg position
Peak inspiratory airway pressure is obtained using the ventilator system
1) baseline, 2) Immediately after induction of anesthesia, 3) immediately after pneumoperitoneum, 4) immediately after Trendelenburg position with penumoperitoneum, 5) Immediately after desufflation in Trendelenburg position

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Seoul National University Hospital

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

13. januar 2020

Primær færdiggørelse (Faktiske)

23. februar 2021

Studieafslutning (Faktiske)

23. februar 2021

Datoer for studieregistrering

Først indsendt

9. januar 2020

Først indsendt, der opfyldte QC-kriterier

15. januar 2020

Først opslået (Faktiske)

18. januar 2020

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

19. januar 2022

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

17. januar 2022

Sidst verificeret

1. januar 2022

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • CCA-BF

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

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