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DeliriumSHARPNCT03133845

Shaping Anesthetic Techniques to Reduce Post-operative Delirium

A study testing Light sedation with propofol, Induction with propofol and Maintenance anesthetic using a volatile anesthetic in people with Delirium and Lumbar Radiculopathy, run by Johns Hopkins University at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to determine if light sedation with spinal anesthesia reduces the incidence of delirium compared to receiving general anesthesia during spinal surgery in older adults. Read more about this study

Who is it for?
Ages 65 years and older
What is being tested?
Light sedation with propofol, Induction with propofol and Maintenance anesthetic using a volatile anesthetic
Could I receive a placebo?
No, everyone receives an active treatment
How many people
218 participants
Where
1 siteUnited States
Study dates
Oct 2015to 25 May 2020
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 65 years and older
  • All sexes
  • No healthy volunteers
  • Older adult

Who may be able to join

  • Male or female patients age 65 and over.
  • Patients undergoing lumbar fusion performed by Dr. Charles Edwards II, Dr. Charles Edwards, Dr. Clayton Dean , or Dr. Justin Park at Mercy Medical Center.
  • Expected length of surgery <3 hours.
  • Ability to understand study procedures and to comply with them for the entire length of the study

Who cannot join

  • Contradictions to spinal anesthesia (severe aortic stenosis, anti-coagulant or antiplatelet medications, other)
  • Body mass index > 40 kg/m2
  • prior lumbar fusion from L2-L5 in entirety
  • Communication issues precluding delirium assessment or sedation
  • Dementia or mini-mental status exam score < 24
  • Psychiatric disease that would preclude cooperation with sedation with spinal anesthesia
  • Any other reason that the attending anesthesiologist or surgeon feels that clinical circumstances dictate a strong preference for either spinal or general anesthesia.
  • Inability or unwillingness of individual or legal guardian/representative to give written informed consent.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Mercy Medical Center

    Baltimore, Maryland, 21202

Other trials in United States

About this study

Official title: Shaping Anesthetic Techniques to Reduce Post-Operative Delirium

The purpose of this study is to determine if light sedation with spinal anesthesia reduces the incidence of delirium compared to receiving general anesthesia during spinal surgery in older adults.

Read the detailed description

Post-operative delirium is a common occurrence in older adults. Post -operative delirium has been associated with cognitive decline after hospitalization. Developing perioperative management strategies to prevent delirium may also reduce potential cognitive decline in older adults after surgery. The choice and dose of anesthetic and sedative drugs are known risk factors in the development of delirium. Excessive doses of anesthetic and sedation drugs during surgery have been associated with poor outcomes that occur after surgery. Currently depth of anesthesia can be measured by an additional monitoring technique called Bispectral Index (BIS).

The purpose of this study is to determine if light sedation with spinal anesthesia reduces the incidence of delirium compared to receiving general anesthesia during spinal surgery in older adults. Previous studies have shown that using light sedation and spinal anesthesia during surgery may reduce the incidence of delirium up to 50%.

Being tested
Light sedation with propofol, Induction with propofol, Maintenance anesthetic using a volatile anesthetic, Muscle relaxant during maintenance anesthesia, Pain control with fentanyl
Keywords
delirium, elderly, lumbar, surgery
Medical subject headings
Delirium, Radiculopathy, Osteoarthritis, Spine

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Light sedation with propofolProcedure or surgery

    Patients having lumbar spinal surgery and receiving spinal anesthesia will receive propofol for light sedation.

  • Induction with propofolProcedure or surgery

    Patients having lumbar spinal surgery and receiving general anesthesia will receive propofol and their induction agent.

  • Maintenance anesthetic using a volatile anestheticProcedure or surgery

    Patients having lumbar spinal surgery and receiving general anesthesia will receive a volatile anesthetic for their maintenance anesthesia.

  • Muscle relaxant during maintenance anesthesiaProcedure or surgery

    Patients having lumbar spinal surgery and receiving general anesthesia with receive a muscle relaxant for muscle paralysis.

  • Pain control with fentanylProcedure or surgery

    Patients having lumbar spinal surgery and receiving general anesthesia will receive fentanyl for their pain during surgery.

  • Bispectral Index (BIS) monitoring for depth of anesthesiaProcedure or surgery

    All patients will be monitored with Bispectral Index (BIS) to monitor the patient's depth of anesthesia.

  • Spinal AnesthesiaProcedure or surgery

    Patients receiving spinal anesthesia will receive bupivacaine into the subarachnoid space.

  • Midazolam administered during spinal anesthesiaProcedure or surgery

    Midazolam may be administered during spinal needle insertion for patients receiving spinal anesthesia.

  • Cerebrospinal fluid collectionProcedure or surgery

    8 ml of cerebrospinal fluid may be collected prior to the administration of intrathecal administration of morphine for pain control.

  • Administration of intrathecal morphineProcedure or surgery

    Patient may receive intrathecal morphine for post-operative pain control.

Study groups in NCT03133845
Study groupRoleWhat they receive
General anesthesiaActive comparatorIn this group patients will receive general anesthesia. Anesthetic induction will occur with propofol (generally 1-2 mg/kg), maintenance with a volatile anesthetic, muscle paralysis with a muscle relaxant, and pain control with fentanyl (generally 2-5 mcg/kg titrated). Patients on baseline opioids may receive additional opioids (such as dilaudid) based on clinical criteria. The anesthetic provider will be blinded to BIS values. Discretionary use of intrathecal morphine may be used.
Receives: Procedure: Induction with propofol; Procedure: Maintenance anesthetic using a volatile anesthetic; Procedure: Muscle relaxant during maintenance anesthesia; Procedure: Pain control with fentanyl; Procedure: Bispectral Index (BIS) monitoring for depth of anesthesia; Procedure: Cerebrospinal fluid collection; Procedure: Administration of intrathecal morphine
Spinal anesthesia with light sedationExperimentalIn this group patients will receive light sedation with propofol and a spinal anesthetic. Spinal anesthesia will be obtained by injecting approximately 10-15 mg of bupivacaine into the subarachnoid space. Up to 2 mg of midazolam may be given during spinal needle insertion. Although spinal anesthesia is sufficient for surgery, sedation is routinely administered using a propofol infusion, titrated to a BIS>60-70. Discretionary use of intrathecal morphine may be used.
Receives: Procedure: Light sedation with propofol; Procedure: Bispectral Index (BIS) monitoring for depth of anesthesia; Procedure: Spinal Anesthesia; Procedure: Midazolam administered during spinal anesthesia; Procedure: Cerebrospinal fluid collection; Procedure: Administration of intrathecal morphine

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Incidence of delirium

    The patient will be assessed for delirium using the Confusion Assessment Method on each of the first 3 post-operative days.

    Measured: First 3 postoperative days

Secondary outcomes (28)
  1. Assessment of cognitive status at 3 months using the Verbal Fluency Test

    The participant will be administered the Verbal Fluency Test to measure verbal fluency. Participants are given 1 minute to name as many words as possible beginning with a letter. Participants are then given 1 minute to name as many words as possible beginning with a different letter. Participants are then given 1 minute to name as many words as possible in a category. The score is the total number of different words produced for all 3 trials and will be compared to the score obtained at baseline.

    Measured: 3 months after surgery

  2. Assessment of cognitive status at 1 year using the Verbal Fluency test.

    The participant will be administered the Verbal Fluency Test to measure verbal fluency. Participants are given 1 minute to name as many words as possible beginning with a letter. Participants are then given 1 minute to name as many words as possible beginning with a different letter. Participants are then given 1 minute to name as many words as possible in a category. The score is the total number of different words produced for all 3 trials and will be compared to the score obtained at baseline.

    Measured: 1 year after surgery

  3. Assessment of functional status at 3 months using the Instrumental Activities of Daily Living (IADL) test.

    At 3 months, the participant's functional status will be assessed using the instrumental activities of daily living (IADL) scales. Scores can range from 0-14 with 14 being high functioning and 0 being low functioning. This score will be compared to the baseline score.

    Measured: 3 months after surgery

  4. Assessment of functional status at 1 year using the Instrumental Activities of Daily Living (IADL) test.

    At 1 year, the participant's functional status will be assessed using the instrumental activities of daily living (IADL) scales. Scores can range from 0-14 with 14 being high functioning and 0 being low functioning. This score will be compared to the baseline score.

    Measured: 1 year after surgery

  5. Assessment of functional status at 3 months using the Short Form 12 Health Survey (SF-12)

    This is a survey that measures the patient's own self reported view on their health. Scores range from 0-100, with 0 indicating the lowest level of health and 100 indicating the highest level of health.

    Measured: 3 months after surgery

  6. Assessment of functional status using at 1 year the Short Form 12 Health Survey (SF-12)

    This is a survey that measures the patient's own self reported view on their health. Scores range from 0-100, with 0 indicating the lowest level of health and 100 indicating the highest level of health.

    Measured: 1 year after surgery

  7. Assessment of functional status at 3 months using the Oswestry Disability Index (ODI)

    This survey measures self-reported disability due to low pain. Scores range from 0-100, with 0 being minimal or no disability and 100 being severe disability. This score will be compared to the baseline score.

    Measured: 3 months after surgery

  8. Assessment of functional status at 1 year using the Oswestry Disability Index (ODI)

    This survey measures self-reported disability due to low pain. Scores range from 0-100, with 0 being minimal or no disability and 100 being severe disability. This score will be compared to the scores obtained at baseline and 3 months after surgery.

    Measured: 1 year after surgery

  9. Assessment of cognitive status at 3 months using Trail Making Test

    This test provides information visual search speed, scanning, speed of processing, mental flexibility, and executive functioning. The test is scored by the amount of time it takes to complete the test in seconds. This score will be compared to the score obtained at baseline.

    Measured: 3 months after surgery

  10. Assessment of cognitive status at 1 year using Trail Making Test

    This test provides information visual search speed, scanning, speed of processing, mental flexibility, and executive functioning. The test is scored by the amount of time it takes to complete the test in seconds. This score will be compared to the scores obtained at baseline and 1 year after surgery.

    Measured: 1 year after surgery

  11. Assessment of cognitive status at 3 months using the Digit Span

    The Digit Span is used to measure the participant's memory span and number storage capacity. The scores range from 0-9 with 0 being short term memory impairment and 9 be no short term memory impairment. This score will be compared to the score obtained at baseline.

    Measured: 3 months after surgery

  12. Assessment of cognitive status at 1 year using the Digit Span

    The Digit Span is used to measure the participant's memory span and number storage capacity. The scores range from 0-9 with 0 being short term memory impairment and 9 be no short term memory impairment. This score will be compared to the scores obtained at baseline and 3 months after surgery.

    Measured: 1 year after surgery

  13. Assessment of the cognitive status at 3 months using the Mini Mental Status Exam

    The mini mental status exam measures cognitive impairment. Scores range from 0-30 with 0 being severe cognitive impairment and 30 being no cognitive impairment. This score will be compared to the score obtained at baseline.

    Measured: 3 months after surgery

  14. Assessment of the cognitive status at 1 year using the Mini Mental Status Exam

    The mini mental status exam measures cognitive impairment. Scores range from 0-30 with 0 being severe cognitive impairment and 30 being no cognitive impairment. The score obtained will be compared to the scores obtained at baseline and 3 months after surgery.

    Measured: 1 year after surgery

  15. Assessment of cognitive status at 3 months after surgery using the Telephone Interview for Cognitive Status (TICS)

    The telephone interview for cognitive status will only be used it the study team is unable to conduct the mini mental status exam in person. This test assesses cognitive function with scores ranging from 0-40 with 0 being severe cognitive impairment and 41 being no cognitive impairment.

    Measured: 3 months after surgery

  16. Assessment of cognitive status at 1 year using the Telephone Interview for Cognitive Status (TICS)

    The telephone interview for cognitive status will only be used it the study team is unable to conduct the mini mental status exam in person. This test assesses cognitive function with scores ranging from 0-40 with 0 being severe cognitive impairment and 41 being no cognitive impairment.

    Measured: 1 year after surgery

  17. Maximum severity of delirium during hospital stay

    The patient will be assessed for delirium using the maximum total score on the Delirium Rating Scale-Revised 1998. The scale range is 0-32, with 0 being low delirium severity and 32 being high delirium severity.

    Measured: Through the end of hospitalization, up to 3 months

  18. Number of participants with hospital readmissions within 30 days of discharge

    Hospital readmissions will be measured.

    Measured: 30 days from hospital discharge

  19. Number of participants with emergency room visit within 30 days of hospital discharge

    Emergency Room Visits will be measured.

    Measured: 30 days from hospital discharge

  20. Number of days in hospital after surgery

    The number of days in hospital after surgery will be calculated for each patient.

    Measured: Immediately after surgery until discharge, up to 3 months

  21. Last pain score in the post-anesthesia care unit

    The last pain score on the NRS pain scale of 0-10 taken in the post-anesthesia care unit by the post-anesthesia care unit staff. For this scale, 0 indicates no pain and 10 indicates the most severe pain.

    Measured: Immediately before leaving the post-anesthesia care unit, up to 1 day

  22. Total morphine equivalents of opioids given in the post-anesthesia care unit

    The total amount of opioids given to each patient in the post-anesthesia care unit will be converted to morphine equivalents for each patient.

    Measured: During post-anesthesia care unit stay, up to 1 week

  23. Time first opioid given in the post-anesthesia care unit

    The time will be noted when the first opioid is given to each participant in the post-anesthesia care unit.

    Measured: The time the first opioid medication is given to the patient in the post-anesthesia care unit, up to 1 week

  24. Last pain score prior to hospital discharge

    The last pain score recorded for each participant on the NRS pain scale of 0-10. For this scale, 0 indicates no pain and 10 indicates the most severe pain.

    Measured: Immediately before hospital discharge

  25. Total amount of morphine equivalents during hospital stay

    The total amount of morphine equivalents will be measure for each participants hospital stay. The amount measured will be pro-rated tp the participant's length of stay.

    Measured: Duration of the hospital length of stay, up to 3 months

  26. The average pain score at 3 month follow-up

    The average pain score for each participant on the NRS pain scale of 0-10 over the week prior to the 3 month follow-up. These score are compared to scores from baseline assessments. For this scale, 0 indicates no pain and 10 indicates the most severe pain.

    Measured: one week prior to end of 3 month follow-up

  27. The average pain score at 12 month follow-up

    The average pain score for each participant on the NRS pain scale of 0-10 over the week prior to the 12 month follow-up. These score are compared to scores from baseline assessments. For this scale, 0 indicates no pain and 10 indicates the most severe pain.

    Measured: one week prior to end of 12 month follow-up

  28. Number of days with delirium

    The number of days with delirium will measured for each participant during the length of the hospital stay for each participant.

    Measured: Duration of the hospital stay, up to 3 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted28 Apr 2017
  2. Study startOct 2015
  3. Primary completion25 May 2020
  4. Study completion25 May 2020

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
218 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03133845
Sponsor's protocol ID
IRB00113655
Acronym
SHARP
Status last verified
Jun 2020
First submitted
23 Oct 2015
Last updated
18 Jun 2020
Results posted
No
Data monitoring committee
No
Individual data sharing
No

Publications

  • Brown CH 4th, Jones EL, Lin C, Esmaili M, Gorashi Y, Skelton RA, Kaganov D, Colantuoni EA, Yanek LR, Neufeld KJ, Kamath V, Sieber FE, Dean CL, Edwards CC 2nd, Hogue CW. Shaping anesthetic techniques to reduce post-operative delirium (SHARP) study: a protocol for a prospective pragmatic randomized controlled trial to evaluate spinal anesthesia with targeted sedation compared with general anesthesia in older adults undergoing lumbar spine fusion surgery. BMC Anesthesiol. 2019 Oct 27;19(1):192. doi: 10.1186/s12871-019-0867-7.

    PubMed 31656179

Questions about this trial

What is this clinical trial studying?

A study testing Light sedation with propofol, Induction with propofol and Maintenance anesthetic using a volatile anesthetic in people with Delirium and Lumbar Radiculopathy, run by Johns Hopkins University at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 18 Jun 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Incidence of delirium (time frame: First 3 postoperative days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03133845, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Jun 2020.

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