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Shoulder InjuriesNCT04671537

The Effects of Preloading Before Beach Chair Position

A study testing Preloading with crystalloid fluid in people with Shoulder Injuries and Anesthesia, run by Istanbul University at 1 site in Turkey (Türkiye).

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 main objective of this study is whether preloading before positioning would be effective for less hemodynamic instability. The study also analyzes that patients with preloading will decrease postoperative nausea and vomiting, better surgical satisfaction and shortened the duration of surgery and anesthesia. Read more about this study

Who is it for?
Ages 18 to 65 yearsHealthy volunteers can take part
What is being tested?
Preloading with crystalloid fluid
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
49 participants
Where
1 siteTurkey (Türkiye)
Study dates
1 Jun 2018to 1 Jan 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 18 to 65 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • undergoing elective arthroscopic shoulder surgery in the BCP,
  • age older than 18 years and younger than 65 years,
  • the American Society of Anesthesiologist (ASA) physical status of I or II,
  • accepting the study protocol.

Who cannot join

  • preoperative arrhythmia,
  • significant heart failure
  • valvular heart disease,
  • preexisting cerebrovascular disease,
  • deciding to switch to open surgery,
  • vasopressor infusion during the surgery,
  • using angiotensin converting enzyme inhibitors (ACEI) orangiotensin receptor blockers (ARB) as antihypertensive medication.

Trial locations and contacts

1 site in 1 country.

Turkey (Türkiye)1 site
  • Istanbul Unıversity, Istanbul Faculty of Medicine

    Istanbul

Other trials in Turkey (Türkiye)

About this study

Official title: Effectiveness of Preloading Before Beach Chair Position on Patients Undergoing Arthroscopic Shoulder Surgery: Randomized Controlled Trial

The main objective of this study is whether preloading before positioning would be effective for less hemodynamic instability. The study also analyzes that patients with preloading will decrease postoperative nausea and vomiting, better surgical satisfaction and shortened the duration of surgery and anesthesia.

Read the detailed description

Keeping patients in normovolemic state and hemodynamically stable in anesthesia and intensive care practice are important goals of anesthesiologist. It is known that hypotension that develops after taking patients to the beach chair position has a negative effect on cerebral oxygenation. Aggressive fluid regimes using to prevent hypotension can cause glycocalyx damage, edema and organ dysfunction. Also hypertension seconday to vasopressor therapy can cause bleeding at the surgical site and impaired surgical visualization during the arthroscopic shoulder surgery.

In the literature, there are studies examine whether the hypotension is the result of decreased cardiac output or decreased systemic resistance and what should be the optimal treatment , but as far as investigators know, there is no study about effects of preloading before the beach chair position on hemodynamic parameters.

Being tested
Preloading with crystalloid fluid
Keywords
beach chair position, arthroscopic shoulder surgery, preloading, hemodynamic stability, postoperative nausea and vomiting
Medical subject headings
Shoulder Injuries, Postoperative Nausea and Vomiting

What participants receive

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

  • Preloading with crystalloid fluidDrug

    crystalloid fluid at 10 ml/kg of ideal body weight was administered intravenously in 30 min before the BCP for patients

Study groups in NCT04671537
Study groupRoleWhat they receive
Study group (preloading with crystalloid fluid - isotonic solution)ExperimentalPreloading with crystalloid fluid (isotonic solution) at 10 ml/kg of ideal body weight
Receives: Drug: Preloading with crystalloid fluid
Control group (not preloading)No interventionno preloading

What is being measured

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

  1. Mean arterial pressure

    (mmHg)

    Measured: during surgery (spesicific time intervals (after induction - after BCP position - 0th min - 5th min - 10th min- 30th min- 60th min)

  2. Cardiac output

    (L/min)

    Measured: during surgery (spesicific time intervals (after induction - after BCP position - 0th min - 5th min - 10th min- 30th min- 60th min)

  3. Stroke volume variation

    (%) data obtained from arterial contour analysis

    Measured: during surgery (spesicific time intervals (after induction - after BCP position - 0th min - 5th min - 10th min- 30th min- 60th min)

  4. Heart rate

    bpm

    Measured: during surgery (spesicific time intervals (after induction - after BCP position - 0th min - 5th min - 10th min- 30th min- 60th min)

Secondary outcomes (5)
  1. Postoperative nausea and vomiting

    PONV rates

    Measured: in postoperative first day

  2. Surgical satisfaction rate

    Surgical satisfaction scale (0-10, 0 lowest score, 10 highest score) (score)

    Measured: in postoperative first day

  3. The duration of anesthesia and surgery

    The duration of anesthesia and surgery (min)

    Measured: during surgery

  4. Ephedrine usage

    total ephedrine dose (mg) used during surgery

    Measured: during surgery

  5. Total amount of crystalloid and colloid

    Total amount of crystalloid and colloid (ml)

    Measured: during surgery

Timeline

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

  1. First posted17 Dec 2020
  2. Study start1 Jun 2018
  3. Primary completion1 Jun 2019
  4. Study completion1 Jan 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
Model description
Study group - Control group
Masking
Single blind
Who is masked
Participant
Enrolment
49 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04671537
Sponsor's protocol ID
2018/166711
Other IDs
2018
Status last verified
Dec 2020
First submitted
3 Dec 2020
Last updated
17 Dec 2020
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Larsen SL, Lyngeraa TS, Maschmann CP, Van Lieshout JJ, Pott FC. Cardiovascular consequence of reclining vs. sitting beach-chair body position for induction of anesthesia. Front Physiol. 2014 May 19;5:187. doi: 10.3389/fphys.2014.00187. eCollection 2014.

    PubMed 24904427
  • Woodcock TE, Woodcock TM. Revised Starling equation and the glycocalyx model of transvascular fluid exchange: an improved paradigm for prescribing intravenous fluid therapy. Br J Anaesth. 2012 Mar;108(3):384-94. doi: 10.1093/bja/aer515. Epub 2012 Jan 29.

    PubMed 22290457
  • Chamos C, Vele L, Hamilton M, Cecconi M. Less invasive methods of advanced hemodynamic monitoring: principles, devices, and their role in the perioperative hemodynamic optimization. Perioper Med (Lond). 2013 Sep 17;2(1):19. doi: 10.1186/2047-0525-2-19.

    PubMed 24472443

Questions about this trial

What is this clinical trial studying?

A study testing Preloading with crystalloid fluid in people with Shoulder Injuries and Anesthesia, run by Istanbul University at 1 site in Turkey (Türkiye).

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 7 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 17 Dec 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 Turkey (Türkiye). 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?

Mean arterial pressure (time frame: during surgery (spesicific time intervals (after induction - after BCP position - 0th min - 5th min - 10th min- 30th min- 60th min)). The study lists 4 primary outcomes in all. 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 NCT04671537, which also lists 3 linked publications.

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 17 Dec 2020.

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