Endoscopic Sinus SurgeryNCT03389763
SPI-guided vs PRD-guided Analgesia During FESS for Intraoperative Blood Loss
A study testing Remifentanil in people with Endoscopic Sinus Surgery, run by Medical University of Silesia at 1 site in Poland.
Trial summary
The aim of this randomized trial is to assess the efficacy of analgesia , compare the utility of Pupillary Dilatation Reflex (PRD), Surgical Pleth Index (SPI) for monitoring pain perception intraoperatively and their influence on intraoperative blood loss, quality of surgical field using Boezaart Bleeding Scale (BBS)… Read more about this study
- Who is it for?
- Ages 18 to 80 years
- Conditions the study is for
- Endoscopic Sinus Surgery
- What is being tested?
- Remifentanil
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 105 participants
- Where
- 1 sitePoland
- Study dates
- 1 Jun 2016to 15 Jan 2018
- 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 80 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- written consent to participate in the study
- written consent to undergo functional endoscopic sinus surgery under total intravenous anaesthesia
- ASA (American Society of Anesthesiologists) I-III
Who cannot join
- age under 18 years old
- allergy to propofol
- pregnancy
- any anatomical malformation making PRD or SE measurement impossible
Trial locations and contacts
1 site in 1 country.
Poland1 site
Medical University of Silesia
Sosnowiec, Silesian Voivodeship, 41-200
About this study
Official title: Comparative Study of Influence of Different Techniques of Remifentanil Titration During Functional Endoscopic Sinus Surgery Under Total Intravenous Anaesthesia (TIVA)
The aim of this randomized trial is to assess the efficacy of analgesia , compare the utility of Pupillary Dilatation Reflex (PRD), Surgical Pleth Index (SPI) for monitoring pain perception intraoperatively and their influence on intraoperative blood loss, quality of surgical field using Boezaart Bleeding Scale (BBS) in patients undergoing functional sinus surgery (FESS)
Read the detailed description
Intraoperative blood loss during FESS constitutes a major problem for a surgeon because it influences quality of surgical field. Each incident of haemorrhage makes the operator stop the procedure in order to bring back the optimal visualization of the intranasal anatomy. In the end it prolongs the time of procedure.
Currently, intraoperative blood loss is estimated based on Boezaart Bleeding Scale (BBS) (0 - no bleeding (cadaveric conditions), 1 - Slight bleeding, no suctioning required, 2 - Slight bleeding, occasional suctioning required, 3 - Slight bleeding, frequent suctioning required; bleeding threatens surgical field a few seconds after suction is removed, 4 - Moderate bleeding, frequent suctioning required, and bleeding threatens surgical field directly after suction is removed, 5 - Severe bleeding, constant suctioning required; bleeding appears faster than can be removed by suction; surgical field severely threatened and surgery usually not possible).
Recently, the Surgical Pleth Index (SPI) and Pupillary Dilatation Reflex (PRD) were added as a surrogate variable showing the nociception-antinociception balance into above mentioned parameters constituting a novel approach in monitoring patients intraoperatively, known as adequacy of anaesthesia (AoA) or tailor-made anaesthesia. PRD value >5% reflects increased sensitivity to painful stimulus as well as delta SPI>10 or any SPI>50, and they constitute the indication for administration of rescue analgesia intraoperatively.
This study aims at evaluating utility of SPI-directed analgesia or PRD-directed analgesia or Boezaart scale-directed analgesia using remifentanil on the intraoperative blood loss, haemodynamic stability and time duration of surgery.
Currently, FESS is most often performed using total intravenous anaesthesia (TIVA) which is by majority of anaesthesiologists believed to reduce the intraoperative blood loss compared to general anaesthesia using volatile anaesthetics, but literature provides conflicting findings in this area.
- Conditions
- Endoscopic Sinus Surgery
- Being tested
- Remifentanil
- Keywords
- Surgical Pleth Index (SPI), Pupillary Dilatation Reflex (PRD), Intraoperative Blood Loss (IBL), Boezaart Bleeding Scale (BBS), Spectral Entropy (SE), Adequacy of Anaesthesia (AoA), Total Intravenous Anaesthesia (TIVA)
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
RemifentanilDrug
Also called Remifentanil infusion
a rate of infusion will be increased by 50% every 5 minutes
| Study group | Role | What they receive |
|---|---|---|
| SPI-guided remifentanyl | Experimental | remifentanyl solution will be administered intravenously at a rate 0,25 mcg/kg of body weight/minute, SPI will be monitored on-line; when delta SPI>15, infusion speed of remifentanyl will be increased by 50% Receives: Drug: Remifentanil |
| PRD-guided remifentanyl | Experimental | solution remifentanyl solution will be administered intravenously at a rate 0,25 mcg/kg of body weight/minute, PRD measurement every 15 minutes; when PRD>5% infusion speed of remifentanyl will be increased by 50% Receives: Drug: Remifentanil |
| BBS-guided remifentanyl | Experimental | BBS assessment every 5 minutes, solution remifentanyl solution will be administered intravenously at a rate 0,25 mcg/kg of body weight/minute; when BBS>2, infusion speed of remifentanyl will be increased by 50% Receives: Drug: Remifentanil |
What is being measured
The primary outcome is the main question the study is designed to answer.
blood loss postoperatively
the investigators will measure the amount of blood loss in the suction bag in millilitres (ml) using a syringe after operation of FESS is completed
Measured: end of operation,' assessment
Secondary outcomes (7)
heart rate stability intraoperatively
the investigators will measure heart rate during TIVAevery 5 minutes up to the end of the operation
Measured: end of operation,' assessment
hemodynamic stability intraoperatively
the investigators will measure blood pressure every 5 minutes during TIVA, every 5 minutes up to the end of the operation
Measured: intraoperative assessment
PRD-guided pain perception intraoperatively
The investigators will measure PRD value and adjust infusion speed of remifentanyl, in the case of PRD value >5% the speed of remifentanyl infusion will accelerate by 50%, intraoperatively, every 15 minutes or at any change of BBS, up to the end of the operation
Measured: intraoperative assessment
SPI-guided pain perception intraoperatively
The investigators will measure SPI values and adjust infusion speed of remifentanyl, in the case of delta SPI>15 the speed of remifentanyl infusion will accelerate by 50%, intraoperatively, every 1 minute, up to the end of the operation
Measured: intraoperative assessment
condition of surgical field
the surgeon will assess the quality of surgical field using BBS when the operation of FESS is performed, every 5 minutes or at any change of BBS form the beginning till the end of surgery, up to the end of the operation
Measured: intraoperative assessment
total consumption of propofol
The investigators will measure the consumption of propofol intraoperatively
Measured: end of operation assessment
total consumption of remifentanil
The investigators will measure the consumption of remifentanyl intraoperatively
Measured: end of operation assessment
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted4 Jan 2018
- Study start1 Jun 2016
- Primary completion15 Jan 2018
- Study completion15 Jan 2018
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (19)Papers the sponsor has linked to this study.
- Other trials for Endoscopic Sinus SurgeryStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Diagnosis
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Participant
- Enrolment
- 105 participants (actual)
Sponsor and investigators
- Lead sponsor
- Medical University of Silesia
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Michał Stasiowski, Medical University of Silesia
- Investigators
- Przemysław O Jałowiecki, Ph.Dr, Principal investigator, Medical University of Silesia
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03389763
- Sponsor's protocol ID
- SilesianMUKOAiIT3
- Status last verified
- Jan 2018
- First submitted
- 6 Sep 2017
- Last updated
- 26 Jan 2018
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: article in Laryngoscope in 2018, case reports
Publications
Bhat Pai RV, Badiger S, Sachidananda R, Basappaji SM, Shanbhag R, Rao R. Comparison of surgical conditions following premedication with oral clonidine versus oral diazepam for endoscopic sinus surgery: A randomized, double-blinded study. J Anaesthesiol Clin Pharmacol. 2016 Apr-Jun;32(2):250-6. doi: 10.4103/0970-9185.182112.
PubMed 27275059Cardesin A, Pontes C, Rosell R, Escamilla Y, Marco J, Escobar MJ, Bernal-Sprekelsen M. Hypotensive anaesthesia and bleeding during endoscopic sinus surgery: an observational study. Eur Arch Otorhinolaryngol. 2014 Jun;271(6):1505-11. doi: 10.1007/s00405-013-2700-0. Epub 2013 Sep 20.
PubMed 24052249Yoo HS, Han JH, Park SW, Kim KS. Comparison of surgical condition in endoscopic sinus surgery using remifentanil combined with propofol, sevoflurane, or desflurane. Korean J Anesthesiol. 2010 Dec;59(6):377-82. doi: 10.4097/kjae.2010.59.6.377. Epub 2010 Dec 31.
PubMed 21253373Cafiero T, Cavallo LM, Frangiosa A, Burrelli R, Gargiulo G, Cappabianca P, de Divitiis E. Clinical comparison of remifentanil-sevoflurane vs. remifentanil-propofol for endoscopic endonasal transphenoidal surgery. Eur J Anaesthesiol. 2007 May;24(5):441-6. doi: 10.1017/S0265021506002080. Epub 2007 Mar 12.
PubMed 17376252Sivaci R, Yilmaz MD, Balci C, Erincler T, Unlu H. Comparison of propofol and sevoflurane anesthesia by means of blood loss during endoscopic sinus surgery. Saudi Med J. 2004 Dec;25(12):1995-8.
PubMed 15711683Marzban S, Haddadi S, Mahmoudi Nia H, Heidarzadeh A, Nemati S, Naderi Nabi B. Comparison of surgical conditions during propofol or isoflurane anesthesia for endoscopic sinus surgery. Anesth Pain Med. 2013 Sep;3(2):234-8. doi: 10.5812/aapm.9891. Epub 2013 Sep 1.
PubMed 24282774Cardesin A, Pontes C, Rosell R, Escamilla Y, Marco J, Escobar MJ, Bernal-Sprekelsen M. A randomised double blind clinical trial to compare surgical field bleeding during endoscopic sinus surgery with clonidine-based or remifentanil-based hypotensive anaesthesia. Rhinology. 2015 Jun;53(2):107-15. doi: 10.4193/Rhino14.185.
PubMed 26030032Drozdowski A, Sieskiewicz A, Siemiatkowski A. [Reduction of intraoperative bleeding during functional endoscopic sinus surgery]. Anestezjol Intens Ter. 2011 Jan-Mar;43(1):45-50. Polish.
PubMed 21786531Shen PH, Weitzel EK, Lai JT, Wormald PJ, Ho CS. Intravenous esmolol infusion improves surgical fields during sevoflurane-anesthetized endoscopic sinus surgery: a double-blind, randomized, placebo-controlled trial. Am J Rhinol Allergy. 2011 Nov-Dec;25(6):e208-11. doi: 10.2500/ajra.2011.25.3701.
PubMed 22185726DeConde AS, Thompson CF, Wu EC, Suh JD. Systematic review and meta-analysis of total intravenous anesthesia and endoscopic sinus surgery. Int Forum Allergy Rhinol. 2013 Oct;3(10):848-54. doi: 10.1002/alr.21196. Epub 2013 Jul 10.
PubMed 23843351Gomez-Rivera F, Cattano D, Ramaswamy U, Patel CB, Altamirano A, Man LX, Luong A, Chen Z, Citardi MJ, Fakhri S. Pilot study comparing total intravenous anesthesia to inhalational anesthesia in endoscopic sinus surgery: novel approach of blood flow quantification. Ann Otol Rhinol Laryngol. 2012 Nov;121(11):725-32. doi: 10.1177/000348941212101105.
PubMed 23193905Blackwell KE, Ross DA, Kapur P, Calcaterra TC. Propofol for maintenance of general anesthesia: a technique to limit blood loss during endoscopic sinus surgery. Am J Otolaryngol. 1993 Jul-Aug;14(4):262-6. doi: 10.1016/0196-0709(93)90072-f.
PubMed 8214320Nekhendzy V, Lemmens HJ, Vaughan WC, Hepworth EJ, Chiu AG, Church CA, Brock-Utne JG. The effect of deliberate hypercapnia and hypocapnia on intraoperative blood loss and quality of surgical field during functional endoscopic sinus surgery. Anesth Analg. 2007 Nov;105(5):1404-9, table of contents. doi: 10.1213/01.ane.0000282781.56025.52.
PubMed 17959973Manola M, De Luca E, Moscillo L, Mastella A. Using remifentanil and sufentanil in functional endoscopic sinus surgery to improve surgical conditions. ORL J Otorhinolaryngol Relat Spec. 2005;67(2):83-6. doi: 10.1159/000084576. Epub 2005 Mar 22.
PubMed 15785115Puthenveettil N, Rajan S, Kumar L, Nair SG. A comparison of effects of oral premedication with clonidine and metoprolol on intraoperative hemodynamics and surgical conditions during functional endoscopic sinus surgery. Anesth Essays Res. 2013 Sep-Dec;7(3):371-5. doi: 10.4103/0259-1162.123244.
PubMed 25885986
Study at a glance
From the registry record, last updated by the sponsor on 26 Jan 2018. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Comparative Study of Influence of Different Techniques of Remifentanil Titration During Functional Endoscopic Sinus Surgery Under Total Intravenous Anaesthesia (TIVA)
- ClinicalTrials.gov ID
- NCT03389763
- Acronym / sponsor ID
- SilesianMUKOAiIT3
- Conditions
- Endoscopic Sinus Surgery
- Keywords
- Surgical Pleth Index (SPI), Pupillary Dilatation Reflex (PRD), Intraoperative Blood Loss (IBL), Boezaart Bleeding Scale (BBS), Spectral Entropy (SE), Adequacy of Anaesthesia (AoA), Total Intravenous Anaesthesia (TIVA)
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 105 participants (actual)
- Lead sponsor
- Medical University of SilesiaUniversity, hospital or other
- Study start
- 1 Jun 2016 (actual)
- Primary completion
- 15 Jan 2018 (actual)
- Study completion
- 15 Jan 2018 (actual)
- First posted
- 4 Jan 2018 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The aim of this randomized trial is to assess the efficacy of analgesia , compare the utility of Pupillary Dilatation Reflex (PRD), Surgical Pleth Index (SPI) for monitoring pain perception intraoperatively and their influence on intraoperative blood loss, quality of surgical field using Boezaart Bleeding Scale (BBS) in patients undergoing functional sinus surgery (FESS)
Detailed description
Intraoperative blood loss during FESS constitutes a major problem for a surgeon because it influences quality of surgical field. Each incident of haemorrhage makes the operator stop the procedure in order to bring back the optimal visualization of the intranasal anatomy. In the end it prolongs the time of procedure.
Currently, intraoperative blood loss is estimated based on Boezaart Bleeding Scale (BBS) (0 - no bleeding (cadaveric conditions), 1 - Slight bleeding, no suctioning required, 2 - Slight bleeding, occasional suctioning required, 3 - Slight bleeding, frequent suctioning required; bleeding threatens surgical field a few seconds after suction is removed, 4 - Moderate bleeding, frequent suctioning required, and bleeding threatens surgical field directly after suction is removed, 5 - Severe bleeding, constant suctioning required; bleeding appears faster than can be removed by suction; surgical field severely threatened and surgery usually not possible).
Recently, the Surgical Pleth Index (SPI) and Pupillary Dilatation Reflex (PRD) were added as a surrogate variable showing the nociception-antinociception balance into above mentioned parameters constituting a novel approach in monitoring patients intraoperatively, known as adequacy of anaesthesia (AoA) or tailor-made anaesthesia. PRD value >5% reflects increased sensitivity to painful stimulus as well as delta SPI>10 or any SPI>50, and they constitute the indication for administration of rescue analgesia intraoperatively.
This study aims at evaluating utility of SPI-directed analgesia or PRD-directed analgesia or Boezaart scale-directed analgesia using remifentanil on the intraoperative blood loss, haemodynamic stability and time duration of surgery.
Currently, FESS is most often performed using total intravenous anaesthesia (TIVA) which is by majority of anaesthesiologists believed to reduce the intraoperative blood loss compared to general anaesthesia using volatile anaesthetics, but literature provides conflicting findings in this area.
Study design
- Primary purpose
- Diagnosis
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (participant)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| SPI-guided remifentanyl | Experimental | Drug: Remifentanilremifentanyl solution will be administered intravenously at a rate 0,25 mcg/kg of body weight/minute, SPI will be monitored on-line; when delta SPI>15, infusion speed of remifentanyl will be increased by 50% |
| PRD-guided remifentanyl | Experimental | Drug: Remifentanilsolution remifentanyl solution will be administered intravenously at a rate 0,25 mcg/kg of body weight/minute, PRD measurement every 15 minutes; when PRD>5% infusion speed of remifentanyl will be increased by 50% |
| BBS-guided remifentanyl | Experimental | Drug: RemifentanilBBS assessment every 5 minutes, solution remifentanyl solution will be administered intravenously at a rate 0,25 mcg/kg of body weight/minute; when BBS>2, infusion speed of remifentanyl will be increased by 50% |
Who may qualify
- Ages
- 18 to 80 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- written consent to participate in the study
- written consent to undergo functional endoscopic sinus surgery under total intravenous anaesthesia
- ASA (American Society of Anesthesiologists) I-III
Key exclusion criteria (4 listed)
- age under 18 years old
- allergy to propofol
- pregnancy
- any anatomical malformation making PRD or SE measurement impossible
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| RemifentanilAlso: Remifentanil infusiona rate of infusion will be increased by 50% every 5 minutes | Drug | BBS-guided remifentanyl, PRD-guided remifentanyl, SPI-guided remifentanyl |
Primary outcome
blood loss postoperatively
Time frame: end of operation,' assessment
the investigators will measure the amount of blood loss in the suction bag in millilitres (ml) using a syringe after operation of FESS is completed
7 secondary outcomes
heart rate stability intraoperatively
Time frame: end of operation,' assessment
hemodynamic stability intraoperatively
Time frame: intraoperative assessment
PRD-guided pain perception intraoperatively
Time frame: intraoperative assessment
SPI-guided pain perception intraoperatively
Time frame: intraoperative assessment
condition of surgical field
Time frame: intraoperative assessment
total consumption of propofol
Time frame: end of operation assessment
total consumption of remifentanil
Time frame: end of operation assessment
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 26 Jan 2018.
- Background: PubMed 27275059Bhat Pai RV, Badiger S, Sachidananda R, Basappaji SM, Shanbhag R, Rao R. Comparison of surgical conditions following premedication with oral clonidine versus oral diazepam for endoscopic sinus surgery: A randomized, double-blinded study. J Anaesthesiol Clin Pharmacol. 2016 Apr-Jun;32(2):250-6. doi: 10.4103/0970-9185.182112.
- Background: PubMed 24052249Cardesin A, Pontes C, Rosell R, Escamilla Y, Marco J, Escobar MJ, Bernal-Sprekelsen M. Hypotensive anaesthesia and bleeding during endoscopic sinus surgery: an observational study. Eur Arch Otorhinolaryngol. 2014 Jun;271(6):1505-11. doi: 10.1007/s00405-013-2700-0. Epub 2013 Sep 20.
- Results publication: PubMed 21253373Yoo HS, Han JH, Park SW, Kim KS. Comparison of surgical condition in endoscopic sinus surgery using remifentanil combined with propofol, sevoflurane, or desflurane. Korean J Anesthesiol. 2010 Dec;59(6):377-82. doi: 10.4097/kjae.2010.59.6.377. Epub 2010 Dec 31.
- Results publication: PubMed 17376252Cafiero T, Cavallo LM, Frangiosa A, Burrelli R, Gargiulo G, Cappabianca P, de Divitiis E. Clinical comparison of remifentanil-sevoflurane vs. remifentanil-propofol for endoscopic endonasal transphenoidal surgery. Eur J Anaesthesiol. 2007 May;24(5):441-6. doi: 10.1017/S0265021506002080. Epub 2007 Mar 12.
- Results publication: PubMed 15711683Sivaci R, Yilmaz MD, Balci C, Erincler T, Unlu H. Comparison of propofol and sevoflurane anesthesia by means of blood loss during endoscopic sinus surgery. Saudi Med J. 2004 Dec;25(12):1995-8.
- Results publication: PubMed 24282774Marzban S, Haddadi S, Mahmoudi Nia H, Heidarzadeh A, Nemati S, Naderi Nabi B. Comparison of surgical conditions during propofol or isoflurane anesthesia for endoscopic sinus surgery. Anesth Pain Med. 2013 Sep;3(2):234-8. doi: 10.5812/aapm.9891. Epub 2013 Sep 1.
- Results publication: PubMed 26030032Cardesin A, Pontes C, Rosell R, Escamilla Y, Marco J, Escobar MJ, Bernal-Sprekelsen M. A randomised double blind clinical trial to compare surgical field bleeding during endoscopic sinus surgery with clonidine-based or remifentanil-based hypotensive anaesthesia. Rhinology. 2015 Jun;53(2):107-15. doi: 10.4193/Rhino14.185.
- Results publication: PubMed 21786531Drozdowski A, Sieskiewicz A, Siemiatkowski A. [Reduction of intraoperative bleeding during functional endoscopic sinus surgery]. Anestezjol Intens Ter. 2011 Jan-Mar;43(1):45-50. Polish.
- Results publication: PubMed 22185726Shen PH, Weitzel EK, Lai JT, Wormald PJ, Ho CS. Intravenous esmolol infusion improves surgical fields during sevoflurane-anesthetized endoscopic sinus surgery: a double-blind, randomized, placebo-controlled trial. Am J Rhinol Allergy. 2011 Nov-Dec;25(6):e208-11. doi: 10.2500/ajra.2011.25.3701.
- Results publication: PubMed 23843351DeConde AS, Thompson CF, Wu EC, Suh JD. Systematic review and meta-analysis of total intravenous anesthesia and endoscopic sinus surgery. Int Forum Allergy Rhinol. 2013 Oct;3(10):848-54. doi: 10.1002/alr.21196. Epub 2013 Jul 10.
- Results publication: PubMed 23193905Gomez-Rivera F, Cattano D, Ramaswamy U, Patel CB, Altamirano A, Man LX, Luong A, Chen Z, Citardi MJ, Fakhri S. Pilot study comparing total intravenous anesthesia to inhalational anesthesia in endoscopic sinus surgery: novel approach of blood flow quantification. Ann Otol Rhinol Laryngol. 2012 Nov;121(11):725-32. doi: 10.1177/000348941212101105.
- Results publication: PubMed 8214320Blackwell KE, Ross DA, Kapur P, Calcaterra TC. Propofol for maintenance of general anesthesia: a technique to limit blood loss during endoscopic sinus surgery. Am J Otolaryngol. 1993 Jul-Aug;14(4):262-6. doi: 10.1016/0196-0709(93)90072-f.
- Individual participant dataSharing planned: Yes. article in Laryngoscope in 2018, case reports
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Przemysław O Jałowiecki, Ph.Dr principal investigator
Medical University of Silesia
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Remifentanil in people with Endoscopic Sinus Surgery, run by Medical University of Silesia at 1 site in Poland.
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 3 inclusion and 4 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 26 Jan 2018. 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 Poland. 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?
blood loss postoperatively (time frame: end of operation,' assessment). 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 NCT03389763, which also lists 19 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 26 Jan 2018.