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

Primary Purpose

Paravertebral Peripheral Nerve Block, Acute Pain Management

Status
Completed
Phase
Not Applicable
Locations
United States
Study Type
Interventional
Intervention
Thoracotomy
Video-Assisted Thoracoscopic Surgery (VATS)
Sponsored by
University of Pittsburgh
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Paravertebral Peripheral Nerve Block focused on measuring Peripheral nerve block, Ultrasound guidance, Postoperative pain management post status thoracotomy, Postoperative pain management post status VATS

Eligibility Criteria

18 Years - 75 Years (Adult, Older Adult)All SexesDoes not accept healthy volunteers

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

Sites / Locations

  • UPMC Presbyterian Shadyside
  • UPMC Passavant

Arms of the Study

Arm 1

Arm 2

Arm Type

Active Comparator

Experimental

Arm Label

Traditional approach paravertebral nerve block

Ultrasound assisted paravertebral nerve block

Arm Description

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.

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.

Outcomes

Primary Outcome Measures

Opioid Consumption at 24 Hours Postoperatively
Hydromorphone (Dilaudid) consumption or opiate equivalent at 24-hour interval post PCA initiation at the post-anesthesia care unit (PACU).

Secondary Outcome Measures

Sensory Level
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.
Pain 11-point Numerical Rating Scale (NRS)at Rest and With Deep Breathing
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.
Number of Local Anesthetic Boluses Requested by PCA
The number of local anesthetic boluses over 24- hour period post PCA initiation will also be recorded.
Total Local Anesthetic Infusions Over 24- Hour Period
The total local anesthetic infusions over 24- hour period.
Inspired Oxygen Concentration and Blood Oxygen Saturation (SpO2)
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.
Incentive Spirometry
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).
Respiratory Rate
Respiratory rate (RR) per minute after surgery.
Forced Vital Capacity (FVC)
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).
Forced Expiratory Volume in 1 Sec (FEV1)
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).
Peak Expiratory Flow Rate(PEF)
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).
Total Number of Local Anesthetic Boluses in 24 Hours
Total Number of Local Anesthetic bolus doses given within the 24-hours post-operatively.

Full Information

First Posted
September 19, 2013
Last Updated
August 17, 2018
Sponsor
University of Pittsburgh
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1. Study Identification

Unique Protocol Identification Number
NCT01949480
Brief Title
Ultrasound-Assisted Paravertebral Block v. Traditional Paravertebral Block For Pain Control
Official Title
Comparison Of Ultrasound-Assisted Paravertebral Block And Traditional Paravertebral Block For Pain Control After Thoracic Surgery, A Prospective Randomized Trial
Study Type
Interventional

2. Study Status

Record Verification Date
August 2018
Overall Recruitment Status
Completed
Study Start Date
July 1, 2013 (Actual)
Primary Completion Date
June 5, 2014 (Actual)
Study Completion Date
June 5, 2014 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Principal Investigator
Name of the Sponsor
University of Pittsburgh

4. Oversight

Data Monitoring Committee
Yes

5. Study Description

Brief Summary
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.
Detailed Description
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.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Paravertebral Peripheral Nerve Block, Acute Pain Management
Keywords
Peripheral nerve block, Ultrasound guidance, Postoperative pain management post status thoracotomy, Postoperative pain management post status VATS

7. Study Design

Primary Purpose
Treatment
Study Phase
Not Applicable
Interventional Study Model
Parallel Assignment
Masking
ParticipantInvestigatorOutcomes Assessor
Allocation
Randomized
Enrollment
45 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Traditional approach paravertebral nerve block
Arm Type
Active Comparator
Arm Description
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.
Arm Title
Ultrasound assisted paravertebral nerve block
Arm Type
Experimental
Arm Description
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.
Intervention Type
Procedure
Intervention Name(s)
Thoracotomy
Intervention Type
Procedure
Intervention Name(s)
Video-Assisted Thoracoscopic Surgery (VATS)
Primary Outcome Measure Information:
Title
Opioid Consumption at 24 Hours Postoperatively
Description
Hydromorphone (Dilaudid) consumption or opiate equivalent at 24-hour interval post PCA initiation at the post-anesthesia care unit (PACU).
Time Frame
24 hours after patient-controlled analgesia (PCA) was initiated
Secondary Outcome Measure Information:
Title
Sensory Level
Description
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.
Time Frame
6 assessments starting 5 minutes after nerve block and ending 30 minutes after nerve block.
Title
Pain 11-point Numerical Rating Scale (NRS)at Rest and With Deep Breathing
Description
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.
Time Frame
24 hours post PCA initiation
Title
Number of Local Anesthetic Boluses Requested by PCA
Description
The number of local anesthetic boluses over 24- hour period post PCA initiation will also be recorded.
Time Frame
24 hours postoperatively
Title
Total Local Anesthetic Infusions Over 24- Hour Period
Description
The total local anesthetic infusions over 24- hour period.
Time Frame
24 hours postoperatively
Title
Inspired Oxygen Concentration and Blood Oxygen Saturation (SpO2)
Description
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.
Time Frame
Pre-operatively and at 24 hour post-operative
Title
Incentive Spirometry
Description
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).
Time Frame
Preoperatively and Postoperatively
Title
Respiratory Rate
Description
Respiratory rate (RR) per minute after surgery.
Time Frame
24 hours postoperatively
Title
Forced Vital Capacity (FVC)
Description
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).
Time Frame
Preoperatively and postoperatively
Title
Forced Expiratory Volume in 1 Sec (FEV1)
Description
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).
Time Frame
Preoperatively and postoperatively
Title
Peak Expiratory Flow Rate(PEF)
Description
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).
Time Frame
Preoperatively and postoperatively
Title
Total Number of Local Anesthetic Boluses in 24 Hours
Description
Total Number of Local Anesthetic bolus doses given within the 24-hours post-operatively.
Time Frame
postoperatively, up to 24 hours

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
75 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
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
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Anna Uskova, MD
Organizational Affiliation
University of Pittsburgh
Official's Role
Principal Investigator
Facility Information:
Facility Name
UPMC Presbyterian Shadyside
City
Pittsburgh
State/Province
Pennsylvania
ZIP/Postal Code
15232
Country
United States
Facility Name
UPMC Passavant
City
Pittsburgh
State/Province
Pennsylvania
ZIP/Postal Code
15237
Country
United States

12. IPD Sharing Statement

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10655907
Citation
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Links:
URL
http://www.irb.pitt.edu/
Description
University of Pittsburgh Institutional Review Board
URL
http://www.anes.upmc.edu/
Description
University of Pittsburgh Department of Anesthesiology

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

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