Deze pagina is automatisch vertaald en de nauwkeurigheid van de vertaling kan niet worden gegarandeerd. Raadpleeg de Engelse versie voor een brontekst.

The Big Squeeze (Lessening the Big Squeeze: The Effect of the Trunk Release on Interface Pressures of Individuals Seated in a High Fowler's Positions)

21 november 2011 bijgewerkt door: University of British Columbia

Lessening the Big Squeeze: The Effect of the Trunk Release on Interface Pressures of Individuals Seated in a High Fowler's Positions

Older adults with a disability tend to spend greater periods of time in bed each day and often over a mealtime. To make it safe for them to eat in bed, the patient is placed in a high Fowler's position. This means that the head and the foot of the bed are raised to sit the person up.

Sitting up in bed increases pressure over the buttocks which can lead to the development of a pressure ulcer. The purpose of this study is to evaluate the impact of the positional change called "the trunk release" on pressure over the buttocks, on breathing and on comfort.

Primary Hypothesis - Performing the trunk release with an older adult population at low risk for pressure ulcer will result in a 5mmHg decrease in the peak pressure index over the sacral-coccygeal area as measured by the peak pressure index using a Force Sensitive Applications (FSA) Pressure Mapping System.

Secondary Hypotheses - Performing the trunk release with an older adult population at low risk for pressure ulcer will result in:

  • Improved ventilation as measured by a 0.5 liter increase in slow vital capacity.
  • Greater comfort as measured by a two point change on a horizontal numeric scale with word anchors combined with the Wong-Baker faces scale (Appendix D).
  • A four-centimetre displacement of the trunk as it extends up towards the head of the bed.

Studie Overzicht

Toestand

Voltooid

Conditie

Interventie / Behandeling

Gedetailleerde beschrijving

Two research assistants will conduct the study. Experimenter A assists with recruitment of subjects, sets up the test environment and performs the trunk release. Experimenter B acts as the primary data collector and will be kept blind to the purpose of the study.

The randomized allocation indicates if the subject is in the intervention or control group. Experimenter A sets up the study hospital bed fitted with a visco-elastic foam mattress, a fitted sheet, a flat sheet and the torso pressure-sensing mat. For standardization, the mat is aligned with markers set on the bed frame. Subjects will wear hospital pajamas over undergarments. Experimenter B records height, weight, age and gender. Subject is seated in a chair and is instructed in the spirometry maneuver. Once the subject is comfortable with the maneuver, Experimenter A asks the subject to lie supine with their body centered on the bed and with their hands resting on their abdomen. Experimenter A reminds the subject to remain completely immobile for the duration of data collection. Experimenter B takes a baseline measure of discomfort as per protocol. Experimenter A places the subject in the High Fowler's position by raising the foot of the bed to its highest position, 50 degrees, and the head of the bed to its highest position, 60 degrees. Experimenter A sets the timer for 8 minutes as per pressure mapping protocol. For more stable values, a "settling time" of 8 minutes is required to factor in creep of the pressure mapping sensors and mattress. Experimenter A aims the laser beam to the top of the scapulae where the subject's shoulder meets the mattress surface. Experimenter B initiates a FSA file with the subject's number, takes a pressure reading once 8 minutes is up, measures the trunk displacement, obtains spirometry readings as per protocol, and takes a measure of discomfort. Experimenter B leaves the room, Experimenter A sets the timer for 5 minutes and opens the allocation envelope.

The Principal Investigator will conduct random spot checks to ensure consistency in set-up.

Studietype

Ingrijpend

Inschrijving (Werkelijk)

129

Fase

  • Niet toepasbaar

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studie Locaties

  • Canada
    • British Columbia
      • Vancouver, British Columbia, Canada, V5Z 1M9
        • Vancouver General Hospital - Banfield Pavilion
      • Vancouver, British Columbia, Canada, V6P 1S1
        • George Pearson Centre
      • Vancouver, British Columbia, Canada, V6P 6E8
        • Dogwood Lodge
      • Vancouver, British Columbia, Canada, V6T 2B5
        • University of British Columbia Hospital - Purdy Pavilion

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

65 jaar en ouder (Oudere volwassene)

Accepteert gezonde vrijwilligers

Ja

Geslachten die in aanmerking komen voor studie

Allemaal

Beschrijving

Inclusion Criteria:

  • 65 years or older
  • Residents, families, friends and volunteers of Vancouver Community Residential facilities
  • Able to understand and follow instructions
  • At low risk for bed sores

Exclusion Criteria:

  • None

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Preventie
  • Toewijzing: Gerandomiseerd
  • Interventioneel model: Opdracht voor een enkele groep
  • Masker: Enkel

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Experimenteel: Intervention
Experimenter A places the subject in the High Fowler's position by raising the foot of the bed to its highest position, 50 degrees, and the head of the bed to its highest position, 60 degrees. Experimenter A sets the timer for 8 minutes as per pressure mapping protocol. For more stable values, a "settling time" of 8 minutes is required to factor in creep of the pressure mapping sensors and mattress. Experimenter A aims the laser beam to the top of the scapulae where the subject's shoulder meets the mattress surface. Experimenter B initiates a FSA file with the subject's number, takes a pressure reading once 8 minutes is up, measures the trunk displacement, obtains spirometry readings as per protocol, and takes a measure of discomfort. Experimenter B leaves the room, Experimenter A sets the timer for 5 minutes and opens the randomization/ allocation envelope.
Procedure: The Big Squeeze
Trunk release as per MSIP protocol. Standing at the foot of the bed, facing the subject, Experimenter A grasps both ends of the flat sheet to pull the trunk forward and away from the mattress surface. As the trunk release procedure is performed, Experimenter A checks to verify that the laser beam shines through to the opposite wall to confirm that the shoulders have cleared the mattress.
Geen tussenkomst: Control group

Experimenter A reminds the subject to remain immobile.

For both intervention and control group. After the five-minute period, experimenter A calls experimenter B to return. Experimenter B takes a pressure reading, measures the trunk displacement, obtains spirometry readings, and takes a measure of discomfort.

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Performing trunk release with older adults at low risk for pressure ulcer results in 5mmHg decrease in peak pressure index over the sacral-coccygeal area measured by peak pressure index using Force Sensitive Applications Pressure Mapping System.

Secundaire uitkomstmaten

Uitkomstmaat
Tijdsspanne
Ventilation as measured by a increase or decrease in slow vital capacity.
Tijdsspanne: after 13 minutes of the treatment
after 13 minutes of the treatment
Comfort as measured by a horizontal numeric scale with word anchors combined with the Wong-Baker faces scale (Appendix D).
Tijdsspanne: after 13 minutes of the treatment
after 13 minutes of the treatment
A displacement of the trunk as it extends up towards the head of the bed.
Tijdsspanne: after 13 minutes of the treatment
after 13 minutes of the treatment

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

University of British Columbia

Onderzoekers

  • Hoofdonderzoeker: Guylaine Desharnais, Vancouver Coastal Health
  • Studie directeur: William C. Miller, University of British Columbia
  • Studie directeur: Jeanette A. Boily, Vancouver Coastal Health
  • Studie directeur: Pat Camp, Vancouver Coastal Health

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start

1 september 2009

Primaire voltooiing (Werkelijk)

1 april 2011

Studie voltooiing (Werkelijk)

1 april 2011

Studieregistratiedata

Eerst ingediend

14 augustus 2009

Eerst ingediend dat voldeed aan de QC-criteria

17 augustus 2009

Eerst geplaatst (Schatting)

18 augustus 2009

Updates van studierecords

Laatste update geplaatst (Schatting)

23 november 2011

Laatste update ingediend die voldeed aan QC-criteria

21 november 2011

Laatst geverifieerd

1 november 2011

Meer informatie

Termen gerelateerd aan deze studie

Trefwoorden

Andere studie-ID-nummers

  • H09-01370

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .

Klinische onderzoeken op The Big Squeeze

Zoek naar vergelijkbare onderzoeken

Sponsors en medewerkers

Medische omstandigheden

Geneesmiddelinterventies

CROs by country

CROs in Malawi

Voorwaarden

Zeldzame ziekten

Geneesmiddelinterventies

Voedingssupplementen

Sponsor / medewerkers

Locaties

3
Abonneren