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

Ultrasound-Assisted Paravertebral Block v. Traditional Paravertebral Block For Pain Control

17 augustus 2018 bijgewerkt door: Anna Uskova, University of Pittsburgh

Comparison Of Ultrasound-Assisted Paravertebral Block And Traditional Paravertebral Block For Pain Control After Thoracic Surgery, A Prospective Randomized Trial

The overall purpose of this research study is to compare the effectiveness of ultrasound assisted paravertebral block placement versus traditional "blind" technique for postoperative analgesia following thoracotomy or visually assisted thoracoscopic surgery.

Studie Overzicht

Gedetailleerde beschrijving

The purpose of this project is to determine if there is a difference between paravertebral block performed with ultrasound assistance and paravertebral block performed with traditional technique in terms of twenty - four hour hydromorphone (dilaudid) consumption and visual analogue pain scores at rest or with deep breathing at twenty - four hours. This study will determine if ultrasound technique used for placement of paravertebral catheter facilitates safety of paravertebral catheterization and improves therapeutic effect of paravertebral blockade for pain control after thoracotomy. The investigators will also examine if ultrasound assisted paravertebral blockade improves pulmonary status in post-thoracotomy patient.

Studietype

Ingrijpend

Inschrijving (Werkelijk)

45

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

    • Pennsylvania
      • Pittsburgh, Pennsylvania, Verenigde Staten, 15237
        • UPMC Passavant
      • Pittsburgh, Pennsylvania, Verenigde Staten, 15232
        • UPMC Presbyterian Shadyside

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

18 jaar tot 75 jaar (Volwassen, Oudere volwassene)

Accepteert gezonde vrijwilligers

Nee

Geslachten die in aanmerking komen voor studie

Allemaal

Beschrijving

Inclusion Criteria:

  • 1. American Society of Anesthesiologists (ASA) I-III subjects
  • 2. Ages 18-75 years
  • 3. BMI < 40
  • 4. Scheduled for elective thoracic surgery at University of Pittsburgh Medical Center (UPMC) Passavant and Shadyside Hospitals in Pittsburgh, Pennsylvania
  • 5. Patients willing and able to provide informed consent

Exclusion Criteria:

  • 1) Age younger than 18 years or older than 75 years
  • (2) Any contraindication to the placement of unilateral thoracic paravertebral catheter, including local infection, hypocoagulable state.
  • (3) American Society of Anesthesiologists physical status IV or greater
  • (4) chronic painful conditions
  • (5) preoperative opioid use
  • (6) coagulation abnormalities or patients who are expected to be on therapeutic anticoagulants postoperatively
  • (7) allergy to lidocaine, ropivacaine or bupivacaine
  • (8) personal or family history of malignant hyperthermia
  • (9) serum creatinine greater than 1.4 g/dl
  • (10) pregnancy or lactating.The pregnancy status will be determined by history and prior pregnancy testing when appropriate
  • (11) having an altered mental status (not oriented to place, person, or time) or emergency surgery
  • (12) comorbid conditions such as sepsis, unstable angina, congestive heart failure, moderate to severe valvular heart disease, severe chronic obstructive pulmonary disease (COPD)
  • (13) patient's inability to provide adequate informed consent
  • (14) patient refusal to nerve blocks and/or participation in the study
  • (15) respiratory support via ventilator post
  • (16) non English speaking
  • (17) allergy to contrast of iodine
  • (18) emergency surgery or any other non-elective procedure
  • (19) unstable vertebral and transverse process fractures

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: Behandeling
  • Toewijzing: Gerandomiseerd
  • Interventioneel model: Parallelle opdracht
  • Masker: Verdrievoudigen

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Actieve vergelijker: Traditional approach paravertebral nerve block
After final needle placement, a hanging drop technique will be used to rule out intrapleural placement while the patient inhales and exhales deeply. After correct needle placement, 10 mL of 0.5% Ropivacaine will be injected incrementally through each needle after negative aspiration, followed by insertion of the nerve block catheter to a depth 5 cm beyond the tip of the needle. An additional 10 mL of 0.5% Ropivacaine will then be injected in 5 mL increments with negative aspiration in between, through the catheter yielding a total activation dose of 20 ml of 0.5% Ropivacaine. The catheter will be secured with Steri-strips and a transparent occlusive dressing.
Experimenteel: Ultrasound assisted paravertebral nerve block
The 22 gauge catheter will be threaded through the needle and placed at previously found distance to paravertebral space on obtained ultrasound image. An additional 10 ml of 0.5% Ropivacaine will be administered through the catheter yielding a total activation dose of 20 ml of 0.5% Ropivacaine. The catheter will be secured with Steri-strips and a transparent occlusive dressing.

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Opioid Consumption at 24 Hours Postoperatively
Tijdsspanne: 24 hours after patient-controlled analgesia (PCA) was initiated
Hydromorphone (Dilaudid) consumption or opiate equivalent at 24-hour interval post PCA initiation at the post-anesthesia care unit (PACU).
24 hours after patient-controlled analgesia (PCA) was initiated

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Sensory Level
Tijdsspanne: 6 assessments starting 5 minutes after nerve block and ending 30 minutes after nerve block.
Sensory level as assessed by temperature and pin prick test assessed every 5 min for 30 min after nerve block as defined as the patient returning to their bed. Data below are in number of patients who didn't have any change during the ice and pin prik test.
6 assessments starting 5 minutes after nerve block and ending 30 minutes after nerve block.
Pain 11-point Numerical Rating Scale (NRS)at Rest and With Deep Breathing
Tijdsspanne: 24 hours post PCA initiation
The pain level assessed using an 11-point numerical rating scale (NRS) with 0 indicating no pain and 10 indicating the worst pain possible with deep breathing and rest at 24 hours post PCA initiation.
24 hours post PCA initiation
Number of Local Anesthetic Boluses Requested by PCA
Tijdsspanne: 24 hours postoperatively
The number of local anesthetic boluses over 24- hour period post PCA initiation will also be recorded.
24 hours postoperatively
Total Local Anesthetic Infusions Over 24- Hour Period
Tijdsspanne: 24 hours postoperatively
The total local anesthetic infusions over 24- hour period.
24 hours postoperatively
Inspired Oxygen Concentration and Blood Oxygen Saturation (SpO2)
Tijdsspanne: Pre-operatively and at 24 hour post-operative
Inspired oxygen concentration and SpO2 preoperatively and at 24 - hour interval. Value reported is an average of the preoperative and the 24-hour postoperative SpO2 measurements.
Pre-operatively and at 24 hour post-operative
Incentive Spirometry
Tijdsspanne: Preoperatively and Postoperatively
Inspiratory Volume as measured by incentive spirometer preoperatively and at 24 hours post PCA initiation. The data is reported as a percentage in change from per-surgery measurements (post-surgery/pre-surgery).
Preoperatively and Postoperatively
Respiratory Rate
Tijdsspanne: 24 hours postoperatively
Respiratory rate (RR) per minute after surgery.
24 hours postoperatively
Forced Vital Capacity (FVC)
Tijdsspanne: Preoperatively and postoperatively
Forced vital capacity (FVC) measured preoperatively and at 24 - hour interval. Then values were analyzed as percentage in change from per-surgery measurement (post-surgery/pre-surgery).
Preoperatively and postoperatively
Forced Expiratory Volume in 1 Sec (FEV1)
Tijdsspanne: Preoperatively and postoperatively
Forced expiratory volume in 1 sec (FEV1) preoperatively and at 24 - hour interval. Then the values were analyzed as percentage in change from per-surgery measurement (post-surgery/pre-surgery).
Preoperatively and postoperatively
Peak Expiratory Flow Rate(PEF)
Tijdsspanne: Preoperatively and postoperatively
Peak expiratory flow rate preoperatively (PEF) and at 24 - hour interval. Then values were analyzed as percentage in change from per-surgery measurement (post-surgery/pre-surgery).
Preoperatively and postoperatively
Total Number of Local Anesthetic Boluses in 24 Hours
Tijdsspanne: postoperatively, up to 24 hours
Total Number of Local Anesthetic bolus doses given within the 24-hours post-operatively.
postoperatively, up to 24 hours

Medewerkers en onderzoekers

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

Publicaties en nuttige links

De persoon die verantwoordelijk is voor het invoeren van informatie over het onderzoek stelt deze publicaties vrijwillig ter beschikking. Dit kan gaan over alles wat met het onderzoek te maken heeft.

Algemene publicaties

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 (Werkelijk)

1 juli 2013

Primaire voltooiing (Werkelijk)

5 juni 2014

Studie voltooiing (Werkelijk)

5 juni 2014

Studieregistratiedata

Eerst ingediend

19 september 2013

Eerst ingediend dat voldeed aan de QC-criteria

23 september 2013

Eerst geplaatst (Schatting)

24 september 2013

Updates van studierecords

Laatste update geplaatst (Werkelijk)

22 januari 2019

Laatste update ingediend die voldeed aan QC-criteria

17 augustus 2018

Laatst geverifieerd

1 augustus 2018

Meer informatie

Termen gerelateerd aan deze studie

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 .

Abonneren