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Cerebral Oxygen DesaturationNCT01835327

Cerebral Oxygen Monitoring During Surgery and Recovery After Surgery in Patients Having Lung Surgery

An observational study of Cerebral Oxygen Desaturation, run by Icahn School of Medicine at Mount Sinai at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The current study proposes to address the question of whether patients' cerebral oxygen saturation levels are predictive of their recovery from thoracic surgery. Further, the study poses the hypothesis that a patient's poor recovery status goes on to increase a patient's risk of developing post-operative morbidities… Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Cerebral Oxygen Desaturation
How many people
130 participants
Where
1 siteUnited States
Study dates
Sep 2012to Sep 2015
Phase
Observational
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 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Anticipated inclusion is all patients scheduled for thoracic surgery at Mount Sinai Hospital by the aforementioned surgeons Dr. Flores and Dr. Kaufman. Exclusion criteria will be those patients who (1) do not speak English, (2) are less that the age of 18 years old, (3) are currently prisoners, (4) do not display the capacity to consent to the trial and (5) who are unwilling to complete the study. Screening for exclusion criteria will occur primarily in the pre-operative setting under the guidance of Drs. Flores and Kaufman and will be reviewed by the Research Coordinator and acting anesthesiologist on the day of surgery.

Who may be able to join

  • speak English
  • 18 yo or older
  • willing to participate
  • undergoing thoracic surgery at Mount Sinai Hospital that will require one lung ventilation

Who cannot join

  • prisoners
  • lack capacity to consent to trial

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Icahn School of Medicine at Mount Sinai

    New York, New York, 10029

Other trials in United States

About this study

Official title: Cerebral Oximetry and Recovery Following Thoracic Surgery

The current study proposes to address the question of whether patients' cerebral oxygen saturation levels are predictive of their recovery from thoracic surgery. Further, the study poses the hypothesis that a patient's poor recovery status goes on to increase a patient's risk of developing post-operative morbidities such as pneumonia, arrhythmias and delirium. The aim of this study is to address the observation that some patients struggle more than others in their recovery and that 1) this may be a result of intraoperative cerebral oxygen desaturations and 2) that this may affect their post-operative morbidity. If a potential means of predicting poor outcomes is identified this will lead to further research into how to adjust the associated variables, such as cerebral oxygenation, to improve patient post-operative outcome.

Read the detailed description

Despite advances in the field of thoracic surgery, post-operative morbidity continues to be a significant problem with limited understanding of the connection between the insult of surgery and anesthesia and the pathophysiology of the development of these morbidities. Surgeons in the thoracic department have noted that some patients seem to recover less vigorously than other patients. What accounts for these different recovery trajectories is unclear. Researchers have developed a Post-Operative Quality Recovery Scale (PQRS) which assesses six domains (physiologic, nociceptive, emotive, activities of daily living, cognitive, and overall patient experience) and has been suggested to serve as a means of tracking patients' recovery from surgery.

Keywords
intraoperative, post-operative recovery, thoracic surgery, cerebral oximetry

What participants receive

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

Study groups in NCT01835327
Study groupRoleWhat they receive
ExposedCerebral oximetry desaturation below 65% for a minimum of 3 minutes
Not ExposedThose patients who do not experience a cerebral oxygen desaturation below 65% for a minimum of 3 minutes

What is being measured

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

  1. Post-Operative Quality of Recovery Score (PQRS)

    Patients are assessed 30 minutes, one hour, and three hours post extubation time on day of surgery and then once daily for however long they are hospitalized up to 14 days, patients are then assessed via phone at one month and three months post-op. Recovery is assessed via questions on multiple domains such as pain and nausea, emotional status, activities of daily living and cognitive status.

    Measured: up to 3 months

  2. Post-Operative Morbidity Survey (POMS) Score

    The POMS score measures morbidity across multiple categories with pre-defined thresholds, example: Pulmonary (de novo requirement of oxygen supplementation), Infectious (fever above 38C or require antibiotics) etc.

    Measured: Post-Operative day 3

  3. Post-Operative Morbidity Survey (POMS) Score

    The POMS score measures morbidity across multiple categories with pre-defined thresholds, example: Pulmonary (de novo requirement of oxygen supplementation), Infectious (fever above 38C or require antibiotics) etc.

    Measured: Post-Operative day 5

  4. Post-Operative Morbidity Survey (POMS) Score

    The POMS score measures morbidity across multiple categories with pre-defined thresholds, example: Pulmonary (de novo requirement of oxygen supplementation), Infectious (fever above 38C or require antibiotics) etc.

    Measured: Post-Operative day 8

Secondary outcomes (1)
  1. Cognitive Assessment Method

    Also measuring delirium each day of hospitalization POD1-POD14 via modified and validated version of the CAM (Cognitive Assessment Method).

    Measured: up to 14 days

Timeline

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

  1. First posted18 Apr 2013 (estimated)
  2. Study startSep 2012
  3. Primary completionSep 2015
  4. Study completionSep 2015

Why it stopped: PI no longer at institution

Resources

More details

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

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Prospective
Enrolment
130 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01835327
Sponsor's protocol ID
GCO 12-1398
Other IDs
HS#: 12-00716
Status last verified
Feb 2017
First submitted
16 Apr 2013
Last updated
15 Feb 2017
Results posted
No
Data monitoring committee
No

Publications

  • Royse CF, Newman S, Chung F, Stygall J, McKay RE, Boldt J, Servin FS, Hurtado I, Hannallah R, Yu B, Wilkinson DJ. Development and feasibility of a scale to assess postoperative recovery: the post-operative quality recovery scale. Anesthesiology. 2010 Oct;113(4):892-905. doi: 10.1097/ALN.0b013e3181d960a9.

    PubMed 20601860
  • Daubeney PE, Pilkington SN, Janke E, Charlton GA, Smith DC, Webber SA. Cerebral oxygenation measured by near-infrared spectroscopy: comparison with jugular bulb oximetry. Ann Thorac Surg. 1996 Mar;61(3):930-4. doi: 10.1016/0003-4975(95)01186-2.

    PubMed 8619720
  • Goldman S, Sutter F, Ferdinand F, Trace C. Optimizing intraoperative cerebral oxygen delivery using noninvasive cerebral oximetry decreases the incidence of stroke for cardiac surgical patients. Heart Surg Forum. 2004;7(5):E376-81. doi: 10.1532/HSF98.20041062.

    PubMed 15799908
  • Murkin JM, Adams SJ, Novick RJ, Quantz M, Bainbridge D, Iglesias I, Cleland A, Schaefer B, Irwin B, Fox S. Monitoring brain oxygen saturation during coronary bypass surgery: a randomized, prospective study. Anesth Analg. 2007 Jan;104(1):51-8. doi: 10.1213/01.ane.0000246814.29362.f4.

    PubMed 17179242
  • Slater JP, Guarino T, Stack J, Vinod K, Bustami RT, Brown JM 3rd, Rodriguez AL, Magovern CJ, Zaubler T, Freundlich K, Parr GV. Cerebral oxygen desaturation predicts cognitive decline and longer hospital stay after cardiac surgery. Ann Thorac Surg. 2009 Jan;87(1):36-44; discussion 44-5. doi: 10.1016/j.athoracsur.2008.08.070.

    PubMed 19101265
  • Hemmerling TM, Bluteau MC, Kazan R, Bracco D. Significant decrease of cerebral oxygen saturation during single-lung ventilation measured using absolute oximetry. Br J Anaesth. 2008 Dec;101(6):870-5. doi: 10.1093/bja/aen275. Epub 2008 Oct 3.

    PubMed 18835887
  • Bennett-Guerrero E, Welsby I, Dunn TJ, Young LR, Wahl TA, Diers TL, Phillips-Bute BG, Newman MF, Mythen MG. The use of a postoperative morbidity survey to evaluate patients with prolonged hospitalization after routine, moderate-risk, elective surgery. Anesth Analg. 1999 Aug;89(2):514-9. doi: 10.1097/00000539-199908000-00050.

    PubMed 10439777
  • Grocott MP, Browne JP, Van der Meulen J, Matejowsky C, Mutch M, Hamilton MA, Levett DZ, Emberton M, Haddad FS, Mythen MG. The Postoperative Morbidity Survey was validated and used to describe morbidity after major surgery. J Clin Epidemiol. 2007 Sep;60(9):919-28. doi: 10.1016/j.jclinepi.2006.12.003. Epub 2007 May 7.

    PubMed 17689808
  • Ackland GL, Harris S, Ziabari Y, Grocott M, Mythen M; SOuRCe Investigators. Revised cardiac risk index and postoperative morbidity after elective orthopaedic surgery: a prospective cohort study. Br J Anaesth. 2010 Dec;105(6):744-52. doi: 10.1093/bja/aeq245. Epub 2010 Sep 28.

    PubMed 20876700
  • Ackland GL, Moran N, Cone S, Grocott MP, Mythen MG. Chronic kidney disease and postoperative morbidity after elective orthopedic surgery. Anesth Analg. 2011 Jun;112(6):1375-81. doi: 10.1213/ANE.0b013e3181ee8456. Epub 2010 Aug 31.

    PubMed 20807976
  • Hollowell J, Grocott MP, Hardy R, Haddad FS, Mythen MG, Raine R. Major elective joint replacement surgery: socioeconomic variations in surgical risk, postoperative morbidity and length of stay. J Eval Clin Pract. 2010 Jun;16(3):529-38. doi: 10.1111/j.1365-2753.2009.01154.x. Epub 2010 Feb 18.

    PubMed 20210822
  • Davies SJ, Yates D, Wilson RJ. Dopexamine has no additional benefit in high-risk patients receiving goal-directed fluid therapy undergoing major abdominal surgery. Anesth Analg. 2011 Jan;112(1):130-8. doi: 10.1213/ANE.0b013e3181fcea71. Epub 2010 Nov 3.

    PubMed 21048092
  • Grichnik KP, Ijsselmuiden AJ, D'Amico TA, Harpole DH Jr, White WD, Blumenthal JA, Newman MF. Cognitive decline after major noncardiac operations: a preliminary prospective study. Ann Thorac Surg. 1999 Nov;68(5):1786-91. doi: 10.1016/s0003-4975(99)00992-3.

    PubMed 10585059
  • Murkin JM. Cerebral oximetry: monitoring the brain as the index organ. Anesthesiology. 2011 Jan;114(1):12-3. doi: 10.1097/ALN.0b013e3181fef5d2. No abstract available.

    PubMed 21178667
  • Tang L, Kazan R, Taddei R, Zaouter C, Cyr S, Hemmerling TM. Reduced cerebral oxygen saturation during thoracic surgery predicts early postoperative cognitive dysfunction. Br J Anaesth. 2012 Apr;108(4):623-9. doi: 10.1093/bja/aer501. Epub 2012 Feb 5.

    PubMed 22311364

Questions about this trial

What is this clinical trial studying?

An observational study of Cerebral Oxygen Desaturation, run by Icahn School of Medicine at Mount Sinai 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 2 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: stopped early, as of the sponsor's last update on 15 Feb 2017. 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 was stopped early (reason given: PI no longer at institution). Results are not available in the source record.

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?

Post-Operative Quality of Recovery Score (PQRS) (time frame: up to 3 months). 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 NCT01835327, which also lists 21 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 15 Feb 2017.

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