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Management of Intraoperative Fluids in Ambulatory Surgery (MIFAS)

2. marts 2020 opdateret af: Renzo Di Natale, Policlinica Metropolitana

Intraoperative Fluid Therapy Management in Low-risk Patients Under General Anesthesia- a Randomized Controlled Trial Comparing Liberal, Restrictive and Pleth Variability Index (PVI)-Guided Fluid Administration in a Day Surgery Setting

This is a single-center prospective randomized control trial (RCT) to determine whether the continuous monitoring of the plethysmographic variability index (PVI) during low-risk surgeries, can be used to optimize the intraoperative fluid administration. Low-risk patients that attend our day surgery unit, and who will be operated under general anesthesia, will be randomized to either a liberal fluid group, a restrictive fluid group or a dynamic monitoring group (PVI-directed). The amount of fluid infused together with the time to discharge, will be assessed in each participant during the postoperative period along with additional secondary outcomes.

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Forventet)

243

Fase

  • Ikke anvendelig

Kontakter og lokationer

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

Studiekontakt

Studiesteder

  • Venezuela
    • Miranda
      • Caracas, Miranda, Venezuela, 01061
        • Policlinica Metropolitana
        • Kontakt:
          • Telephone central
          • Telefonnummer: +582129080100
        • Ledende efterforsker:
          • Pascual M Carucci, MD
        • Underforsker:
          • Renzo G Di Natale, MD

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

18 år til 65 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • participants attending the unit for a day surgery procedure
  • participants whose surgeries will be performed under general anesthesia
  • aged between 18-65 years
  • no abnormal findings on chest x-ray or electrocardiogram on preoperative evaluation
  • patients undergoing procedures which do not require opening of the abdominal or thoracic cavities

Exclusion Criteria:

  • ASA score III or higher
  • patients undergoing surgeries which require additional pain management procedures (e.g. selective nerve blockade, epidural anesthesia, etc.)
  • known pregnant women
  • known kidney disease (or serum creatinine >1.8 mg/dl)
  • known liver disease (or AST/ALT >60 U/l)
  • known chronic heart failure (determined by a LVEF <55%)
  • participants who develop hypotension intraoperatively and do not respond to 4 fluid challenges (1000 ml), requiring aggressive fluid resuscitation OR vasopressors
  • estimated blood loss during surgery >250 ml
  • development of an adverse reaction to any of the drugs administered during surgery (requiring additional medical management)

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Støttende pleje
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Dobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Aktiv komparator: Liberal group protocol
Fluid loading with 500 ml at induction. Baseline fluid infusion - 8 ml/kg/h. Fluid challenge - if mean arterial pressure (MAP) falls to < 65 mmHg, a fluid challenge will be administered.
Andet: Fluid therapy protocol
Only ringer lactate (RL solution will be used). 1. Fluid loading at induction with 500 ml of ringer lactate solution will be given to some groups. 2. Base infusion rate varies according to group. 3. Fluid challenges - infusion of 250 ml over 5 min, a hemodynamic parameter specific to each group will be monitored for 10 min after the end of infusion to look for changes. Patients who do not respond to four (4) fluid challenges (volume infused 1000 ml) will be excluded.
Aktiv komparator: Restrictive group protocol
No fluid loading at induction. Baseline fluid infusion - 4 ml/kg/h. Fluid challenges - if mean arterial pressure (MAP) falls to < 65 mmHg, a fluid challenge will be administered.
Andet: Fluid therapy protocol
Only ringer lactate (RL solution will be used). 1. Fluid loading at induction with 500 ml of ringer lactate solution will be given to some groups. 2. Base infusion rate varies according to group. 3. Fluid challenges - infusion of 250 ml over 5 min, a hemodynamic parameter specific to each group will be monitored for 10 min after the end of infusion to look for changes. Patients who do not respond to four (4) fluid challenges (volume infused 1000 ml) will be excluded.
Eksperimentel: PVI-guided group protocol
No fluid loading at induction. Baseline fluid infusion - 2 ml/kg/h. PVI will be monitored continuously since anesthesia induction. Fluid challenges - if PVI rises >=13 (or MAP falls < 65 mmHg), a fluid challenge will be administered.
Andet: Fluid therapy protocol
Only ringer lactate (RL solution will be used). 1. Fluid loading at induction with 500 ml of ringer lactate solution will be given to some groups. 2. Base infusion rate varies according to group. 3. Fluid challenges - infusion of 250 ml over 5 min, a hemodynamic parameter specific to each group will be monitored for 10 min after the end of infusion to look for changes. Patients who do not respond to four (4) fluid challenges (volume infused 1000 ml) will be excluded.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Total volume of fluid infused intraoperatively
Tidsramme: 0 min after extubation
Total volume of ringer lactate solution infused intraoperatively to participants (ml).
0 min after extubation
Time to discharge
Tidsramme: 240 min after extubation (discharge)
Time in hours (h) from anesthesia reversal to fulfillment of patient discharge criteria. Patients will be assessed by an attending nurse every 30 min to assess the fulfillment of these criteria.
240 min after extubation (discharge)

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Significant postoperative nausea and vomiting (PONV)
Tidsramme: 240 min after extubation (discharge)
Presence of significant PONV as determined by a score ≥5 on the scale proposed by Myles SA et al. (BJA 2012)
240 min after extubation (discharge)
Postoperative dizziness
Tidsramme: 30 min after reversal
Presence of patient self-reported dizziness in the post-operative period.
30 min after reversal
Postoperative fatigue
Tidsramme: 30 min after reversal
Presence of patient self-reported fatigue after surgery.
30 min after reversal
Postoperative thirst
Tidsramme: 30 min after reversal
Presence of patient self-reported thirst after surgery
30 min after reversal

Samarbejdspartnere og efterforskere

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

Sponsor

Policlinica Metropolitana

Efterforskere

  • Studieleder: Pascual M Carucci, MD, Policlinica Metropolitana

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 (Forventet)

1. december 2020

Primær færdiggørelse (Forventet)

1. december 2021

Studieafslutning (Forventet)

1. december 2023

Datoer for studieregistrering

Først indsendt

15. juni 2017

Først indsendt, der opfyldte QC-kriterier

16. juni 2017

Først opslået (Faktiske)

20. juni 2017

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

3. marts 2020

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

2. marts 2020

Sidst verificeret

1. marts 2020

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Andre undersøgelses-id-numre

  • 1701

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

Uafklaret

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

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