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Cerebral Oxygenation in the Sitting Position Is Not Compromised During Spontaneous or Positive-Pressure Ventilation

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HSS Journal ®

Abstract

Background

General anesthesia with neuromuscular blockade may facilitate total shoulder arthroplasty but appears to increase risk of cerebral oxygen desaturation. Cerebral desaturation is undesirable and is a proxy for risk of stroke.

Purposes/Questions

This study tested the hypothesis that cerebral oxygen desaturation occurs frequently during general anesthesia with neuromuscular blockade and positive-pressure ventilation but does not occur with spontaneous ventilation. Correlations were sought among cerebral oxygen saturation, blood pressure, and cardiac index.

Methods

We designed a prospective, observational, cohort study to measure cerebral oxygenation in 25 patients during general anesthesia, both with and without positive-pressure ventilation. Patients undergoing elective shoulder arthroplasty in the sitting position received an arterial catheter, near-infrared spectroscopic measurement of cerebral oxygenation, and non-invasive cardiac output measurement. Moderate hypotension was allowed. Blood pressure was supported as needed with ephedrine or low-dose epinephrine (but avoiding phenylephrine). Hypercapnia (45 to 55 mmHg) was targeted during positive-pressure ventilation.

Results

No cerebral oxygen desaturations occurred, regardless of ventilation mode. Under positive-pressure ventilation, the median (interquartile range: Q1, Q3) cerebral oxygenation was 110% of baseline (104, 113), the mean arterial pressure was 62% of baseline (59, 69), and the cardiac index was 82% of baseline (71, 104). Cerebral oxygenation did not correlate with blood pressure or cardiac index but had moderate correlation with end-tidal carbon dioxide. No strokes occurred.

Conclusions

There were no signs of inadequate brain perfusion during general anesthesia using paralytic agents. Positive-pressure ventilation with moderate hypotension in the sitting position does not endanger patients, in the context of moderate hypercapnia and hemodynamic support using ephedrine or epinephrine.

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References

  1. Aguirre J, Borgeat A, Trachsel T, Cobo Del Prado I, De Andres J, Buhler P. Cerebral oxygenation in patients undergoing shoulder surgery in beach chair position: comparing general to regional anesthesia and the impact on neurobehavioral outcome. Rev Esp Anestesiol Reanim. 2014;61(2):64–72.

    Article  CAS  PubMed  Google Scholar 

  2. Bijker JB, Persoon S, Peelen LM, et al. Intraoperative hypotension and perioperative ischemic stroke after general surgery. Anesthesiology. 2012;116(3):658–664.

    Article  PubMed  Google Scholar 

  3. Cote R, Battista RN, Wolfson C, Boucher J, Adam J, Hachinski V. The Canadian Neurological Scale: validation and reliability assessment. Neurology. 1989;39(5): 638–643.

    Article  CAS  PubMed  Google Scholar 

  4. Drummond JC. Stroke and intraoperative hypotension: to sleep, perchance to stroke—ay, there’s the rub. Anesth Analg. 2016;123(4):814–815

    Article  PubMed  Google Scholar 

  5. Friedman DJ, Parnes NZ, Zimmer Z, Higgins LD, Warner JP. Prevalence of cerebrovascular events during shoulder surgery and association with patient position. Orthopedics. 2009;32:256.

    Article  Google Scholar 

  6. Gillespie R, Shishani Y, Streit J, et al. The safety of controlled hypotension for shoulder arthroscopy in the beach-chair position. J Bone Joint Surg Am. 2012;94:1284–1290.

    Article  PubMed  Google Scholar 

  7. Koh JL, Levin SD, Chehab EL, Murphy GS. Cerebral oxygenation in the beach chair position: a prospective study on the effect of general anesthesia compared with regional anesthesia and sedation. J Shoulder Elbow Surg. 2013;22(10):1325–1331.

    Article  PubMed  Google Scholar 

  8. Laflam A, Joshi B, Brady K, Yenokyan G, Brown C, Everett A, et al. Shoulder surgery in the beach chair position is associated with diminished cerebral autoregulation but no differences in postoperative cognition or brain injury biomarker levels compared with supine positioning: The Anesthesia Patient Safety Foundation Beach Chair Study. Anesth Analg. 2015;120(1):176–185.

    Article  PubMed  PubMed Central  Google Scholar 

  9. Lee JH, Min KT, Chun YM, Kim EJ, Choi SH. Effects of beach-chair position and induced hypotension on cerebral oxygen saturation in patients undergoing arthroscopic shoulder surgery. Arthroscopy 2011;27(7):889–894.

    Article  PubMed  Google Scholar 

  10. Mazzon D, Danelli G, Poole D, Marchini C, Bianchin C. Beach chair position, general anesthesia and deliberated hypotension during shoulder surgery: a dangerous combination!. Minerva Anestesiol. 2009;75(5):281–282.

    CAS  PubMed  Google Scholar 

  11. McCulloch TJ, Liyanagama K, Petchell J. Relative hypotension in the beach-chair position: effects on middle cerebral artery blood velocity. Anaesth Intensive Care. 2010;38(3):486–491.

    Article  CAS  PubMed  Google Scholar 

  12. Meng L, Cannesson M, Alexander BS, et al. Effect of phenylephrine and ephedrine bolus treatment on cerebral oxygenation in anaesthetized patients. Br J Anaesth. 2011;107(2):209–217.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  13. Murphy GS, Szokol JW, Avram MJ, et al. Effect of ventilation on cerebral oxygenation in patients undergoing surgery in the beach chair position: a randomized controlled trial. Br J Anaesth. 2014;113:618–627.

    Article  CAS  PubMed  Google Scholar 

  14. Murphy GS, Szokol JW, Marymont JH, et al. Cerebral oxygen desaturation events assessed by near-infrared spectroscopy during shoulder arthroscopy in the beach chair and lateral decubitus positions. Anesth Analg. 2010;111(2):496–505.

    Article  PubMed  Google Scholar 

  15. Ono M, Zheng Y, Joshi B, Sigl JC, Hogue CW. Validation of a stand-alone near infrared spectroscopy system for monitoring cerebral autoregulation during cardiac surgery. Anesth Analg. 2013;116(1):198–204.

    Article  PubMed  Google Scholar 

  16. Paul JE, Ling E, Lalonde C, Thabane L. Deliberate hypotension in orthopedic surgery reduces blood loss and transfusion requirements: a meta-analysis of randomized controlled trials. Can J Anaesth. 2007;54(10):799–810.

    Article  PubMed  Google Scholar 

  17. Picton P, Dering A, Alexander A, et al. Influence of ventilation strategies and anesthetic techniques on regional cerebral oximetry in the beach chair position. Anesthesiology. 2015;123(4):765–774.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  18. Pin-on P, Schroeder D, Munis J. The hemodynamic management of 5177 neurosurgical and orthopedic patients who underwent surgery in the sitting or “beach chair” position without incidence of adverse neurologic events. Anesth Analg. 2013;116(6):1317–1324.

    Article  PubMed  Google Scholar 

  19. Pohl A, Cullen DJ. Cerebral ischemia during shoulder surgery in the upright position: a case series. J Clin Anesth. 2005;17:463–469.

    Article  PubMed  Google Scholar 

  20. Porter JM, Pidgeon C, Cunningham AJ. The sitting position in neurosurgery: a critical appraisal. Br J Anaesth. 1999;82(1):117–128.

    Article  CAS  PubMed  Google Scholar 

  21. Salazar D, Sears BW, Andre J, Tonino P, Marra G. Cerebral desaturation during shoulder arthroscopy: a prospective observational study. Clin Orthop Relat Res. 2013;471:4027–4034.

    Article  PubMed  PubMed Central  Google Scholar 

  22. So J, Shin WJ, Shim JH. A cardiovascular collapse occurred in the beach chair position for shoulder arthroscopy under general anesthesia—a case report. Korean J Anesthesiol. 2013;64(3):265–267.

    Article  PubMed  PubMed Central  Google Scholar 

  23. Soeding PF, Hoy S, Hoy G, Evans M, Royse CF. Effect of phenylephrine on the haemodynamic state and cerebral oxygen saturation during anesthesia in the upright position. Br J Anaesth. 2013;111(2):229–234.

    Article  CAS  PubMed  Google Scholar 

  24. Triplet JJ, Lonetta CM, Levy JC, Everding NG, Moor MA. Cerebral desaturation events in the beach chair position: correlation of noninvasive blood pressure and estimated temporal mean arterial pressure. J Shoulder Elbow Surg. 2015;34:135–137.

    Google Scholar 

  25. Ya Deau JT. CORR Insights: hypotensive epidural anesthesia reduces blood loss in pelvic and sacral bone tumor resections. Clin Orthop Relat Res. 2017;475(3):641–642.

    Article  Google Scholar 

  26. Ya Deau JT, Casciano M, Liu SS, et al. Stroke, regional anesthesia in the sitting position, and hypotension: a review of 4169 ambulatory surgery patients. Reg Anesth Pain Med. 2011;123(4):765–774.

    Google Scholar 

  27. Ya Deau JT, Liu SS, Bang H, et al. Cerebral oximetry desaturation during shoulder surgery performed in a sitting position under regional anesthesia. Can J Anaesth. 2011;58(11):986–992.

    Article  Google Scholar 

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Acknowledgments

We thank George Birch for his assistance with manuscript writing, editing, submission, and revision.

Funding

This study was funded by the Department of Anesthesiology—Research and Education Fund, Hospital for Special Surgery (New York, NY). The REDCap electronic data capture tools were funded by the Clinical and Translational Science Center Grant, National Center for Advancing Translational Science, National Institutes of Health (#UL1TR000457). CAS Medical Systems, Inc. (Branford, CT, USA) provided FORE-SIGHT cerebral oximetry monitors at no cost and probes at research cost for the study. Cheetah Medical, Inc. (Vancouver, WA, USA) provided NICOM hemodynamic monitor and probes at research cost.

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Correspondence to Jacques T. YaDeau MD, PhD.

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Conflict of Interest

Richard L. Kahn, MD, Yi Lin, MD, PhD, Enrique A. Goytizolo, MD, Michael A. Gordon, MD, Yuliya Gadulov, MD, Sean Garvin, MD, Kara Fields, MS, Amanda Goon, BA, and Isabel Armendi, BSc, declare that they have no conflicts of interest. Jacques T. YaDeau, MD, PhD, reports receiving grants and personal fees from Mallinckrodt, outside the submitted work. David M. Dines, MD, and Edward V. Craig, MD, MPH, both report receiving royalties and other fees from Zimmer Biomet, during the conduct of this study.

Human/Animal Rights

All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1975, as revised in 2013.

Informed Consent

Informed consent was obtained from all patients included in this study.

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Disclosure forms provided by the authors are available with the online version of this article.

Additional information

Level of Evidence: Level II

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YaDeau, J.T., Kahn, R.L., Lin, Y. et al. Cerebral Oxygenation in the Sitting Position Is Not Compromised During Spontaneous or Positive-Pressure Ventilation. HSS Jrnl 15, 167–175 (2019). https://doi.org/10.1007/s11420-018-9642-4

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  • DOI: https://doi.org/10.1007/s11420-018-9642-4

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