1
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Deschamps A, Saha T, El-Gabalawy R, Jacobsohn E, Overbeek C, Palermo J, Robichaud S, Dumont AA, Djaiani G, Carroll J, Kavosh MS, Tanzola R, Schmitt EM, Inouye SK, Oberhaus J, Mickle A, Ben Abdallah A, Avidan MS, Clinical Trials Group CPA. Protocol for the electroencephalography guidance of anesthesia to alleviate geriatric syndromes (ENGAGES-Canada) study: A pragmatic, randomized clinical trial. F1000Res 2023; 8:1165. [PMID: 31588356 PMCID: PMC6760454 DOI: 10.12688/f1000research.19213.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/09/2023] [Indexed: 01/15/2023] Open
Abstract
Background: There is some evidence that electroencephalography guidance of general anesthesia can decrease postoperative delirium after non-cardiac surgery. There is limited evidence in this regard for cardiac surgery. A suppressed electroencephalogram pattern, occurring with deep anesthesia, is associated with increased incidence of postoperative delirium (POD) and death. However, it is not yet clear whether this electroencephalographic pattern reflects an underlying vulnerability associated with increased incidence of delirium and mortality, or whether it is a modifiable risk factor for these adverse outcomes. Methods: The Electroe ncephalography Guidance of Anesthesia to Alleviate Geriatric Syndromes ( ENGAGES-Canada) is an ongoing pragmatic 1200 patient trial at four Canadian sites. The study compares the effect of two anesthetic management approaches on the incidence of POD after cardiac surgery. One approach is based on current standard anesthetic practice and the other on electroencephalography guidance to reduce POD. In the guided arm, clinicians are encouraged to decrease anesthetic administration, primarily if there is electroencephalogram suppression and secondarily if the EEG index is lower than the manufacturers recommended value (bispectral index (BIS) or WAVcns below 40 or Patient State Index below 25). The aim in the guided group is to administer the minimum concentration of anesthetic considered safe for individual patients. The primary outcome of the study is the incidence of POD, detected using the confusion assessment method or the confusion assessment method for the intensive care unit; coupled with structured delirium chart review. Secondary outcomes include unexpected intraoperative movement, awareness, length of intensive care unit and hospital stay, delirium severity and duration, quality of life, falls, and predictors and outcomes of perioperative distress and dissociation. Discussion: The ENGAGES-Canada trial will help to clarify whether or not using the electroencephalogram to guide anesthetic administration during cardiac surgery decreases the incidence, severity, and duration of POD. Registration: ClinicalTrials.gov ( NCT02692300) 26/02/2016.
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Affiliation(s)
- Alain Deschamps
- Department of Anesthesiology and Pain Medicine, Montreal Heart Institute and Universite de Montreal, Montreal, Quebec, H1T 1C8, Canada,
| | - Tarit Saha
- Department of Anesthesiology and Perioperative Medicine, Queen's University, Kingston, Kingston, Ontario, Canada
| | - Renée El-Gabalawy
- Department of Clinical Health Psychology, Anesthesiology, Perioperative and Pain Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Eric Jacobsohn
- Departments of Anesthesia and Internal Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Charles Overbeek
- Department of Anesthesiology and Pain Medicine, University of Montreal, Montreal, Quebec, Canada
| | - Jennifer Palermo
- Department of Anesthesiology and Pain Medicine, University of Montreal, Montreal, Quebec, Canada
| | | | - Andrea Alicia Dumont
- Montreal Health Innovation Coordinating Center, Montreal Heart Institute, Montreal, Quebec, Canada
| | - George Djaiani
- Department of Anesthesia, University of Toronto, Toronto, Ontario, Canada
| | - Jo Carroll
- Department of Anesthesia, University of Toronto, Toronto, Ontario, Canada
| | - Morvarid S. Kavosh
- Department of Anesthesiology, Perioperative and Pain Medicine, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Rob Tanzola
- Department of Anesthesiology and Perioperative Medicine, Queen's University, Kingston, Kingston, Ontario, Canada
| | - Eva M. Schmitt
- Department of Medicine, Beth Israel Deaconess Medical Center, Boston, Massachussetts, USA
| | - Sharon K. Inouye
- Department of Medicine, Beth Israel Deaconess Medical Center, Boston, Massachussetts, USA
| | - Jordan Oberhaus
- Department of Anesthesiology, Washington University School of Medicine, St-Louis, Missouri, USA
| | - Angela Mickle
- Department of Anesthesiology, Washington University School of Medicine, St-Louis, Missouri, USA
| | - Arbi Ben Abdallah
- Department of Anesthesiology, Washington University School of Medicine, St-Louis, Missouri, USA
| | - Michael S. Avidan
- Department of Anesthesiology, Washington University School of Medicine, St-Louis, Missouri, USA
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2
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Deschamps A, Saha T, El-Gabalawy R, Jacobsohn E, Overbeek C, Palermo J, Robichaud S, Dumont AA, Djaiani G, Carroll J, Kavosh MS, Tanzola R, Schmitt EM, Inouye SK, Oberhaus J, Mickle A, Ben Abdallah A, Avidan MS, Clinical Trials Group CPA. Protocol for the electroencephalography guidance of anesthesia to alleviate geriatric syndromes (ENGAGES-Canada) study: A pragmatic, randomized clinical trial. F1000Res 2023; 8:1165. [PMID: 31588356 PMCID: PMC6760454 DOI: 10.12688/f1000research.19213.1] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/08/2019] [Indexed: 01/27/2023] Open
Abstract
Background: There is some evidence that electroencephalography guidance of general anesthesia can decrease postoperative delirium after non-cardiac surgery. There is limited evidence in this regard for cardiac surgery. A suppressed electroencephalogram pattern, occurring with deep anesthesia, is associated with increased incidence of postoperative delirium (POD) and death. However, it is not yet clear whether this electroencephalographic pattern reflects an underlying vulnerability associated with increased incidence of delirium and mortality, or whether it is a modifiable risk factor for these adverse outcomes. Methods: The Electroe ncephalography Guidance of Anesthesia to Alleviate Geriatric Syndromes ( ENGAGES-Canada) is an ongoing pragmatic 1200 patient trial at four Canadian sites. The study compares the effect of two anesthetic management approaches on the incidence of POD after cardiac surgery. One approach is based on current standard anesthetic practice and the other on electroencephalography guidance to reduce POD. In the guided arm, clinicians are encouraged to decrease anesthetic administration, primarily if there is electroencephalogram suppression and secondarily if the EEG index is lower than the manufacturers recommended value (bispectral index (BIS) or WAVcns below 40 or Patient State Index below 25). The aim in the guided group is to administer the minimum concentration of anesthetic considered safe for individual patients. The primary outcome of the study is the incidence of POD, detected using the confusion assessment method or the confusion assessment method for the intensive care unit; coupled with structured delirium chart review. Secondary outcomes include unexpected intraoperative movement, awareness, length of intensive care unit and hospital stay, delirium severity and duration, quality of life, falls, and predictors and outcomes of perioperative distress and dissociation. Discussion: The ENGAGES-Canada trial will help to clarify whether or not using the electroencephalogram to guide anesthetic administration during cardiac surgery decreases the incidence, severity, and duration of POD. Registration: ClinicalTrials.gov ( NCT02692300) 26/02/2016.
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Affiliation(s)
- Alain Deschamps
- Department of Anesthesiology and Pain Medicine, Montreal Heart Institute and Universite de Montreal, Montreal, Quebec, H1T 1C8, Canada,
| | - Tarit Saha
- Department of Anesthesiology and Perioperative Medicine, Queen's University, Kingston, Kingston, Ontario, Canada
| | - Renée El-Gabalawy
- Department of Clinical Health Psychology, Anesthesiology, Perioperative and Pain Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Eric Jacobsohn
- Departments of Anesthesia and Internal Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Charles Overbeek
- Department of Anesthesiology and Pain Medicine, University of Montreal, Montreal, Quebec, Canada
| | - Jennifer Palermo
- Department of Anesthesiology and Pain Medicine, University of Montreal, Montreal, Quebec, Canada
| | | | - Andrea Alicia Dumont
- Montreal Health Innovation Coordinating Center, Montreal Heart Institute, Montreal, Quebec, Canada
| | - George Djaiani
- Department of Anesthesia, University of Toronto, Toronto, Ontario, Canada
| | - Jo Carroll
- Department of Anesthesia, University of Toronto, Toronto, Ontario, Canada
| | - Morvarid S. Kavosh
- Department of Anesthesiology, Perioperative and Pain Medicine, Max Rady College of Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Rob Tanzola
- Department of Anesthesiology and Perioperative Medicine, Queen's University, Kingston, Kingston, Ontario, Canada
| | - Eva M. Schmitt
- Department of Medicine, Beth Israel Deaconess Medical Center, Boston, Massachussetts, USA
| | - Sharon K. Inouye
- Department of Medicine, Beth Israel Deaconess Medical Center, Boston, Massachussetts, USA
| | - Jordan Oberhaus
- Department of Anesthesiology, Washington University School of Medicine, St-Louis, Missouri, USA
| | - Angela Mickle
- Department of Anesthesiology, Washington University School of Medicine, St-Louis, Missouri, USA
| | - Arbi Ben Abdallah
- Department of Anesthesiology, Washington University School of Medicine, St-Louis, Missouri, USA
| | - Michael S. Avidan
- Department of Anesthesiology, Washington University School of Medicine, St-Louis, Missouri, USA
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3
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Liu T, Liu FC, Xia Y, Luo TJ, Wang F, Chen B, Wang C, Gao GK, Zhai WT, Liu W. Effect of dexmedetomidine on the Montreal Cognitive Assessment in older patients undergoing pulmonary surgery. J Int Med Res 2022; 50:3000605221123680. [PMID: 36151758 PMCID: PMC9513575 DOI: 10.1177/03000605221123680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Objective We investigated the effect of dexmedetomidine anesthesia on postoperative
cognitive function after pulmonary surgery. Methods A blinded, prospective, randomized, placebo-controlled study was performed on
60 patients (age range 65–74 years) undergoing lobectomy by video-assisted
thoracoscopic surgery (29 in the dexmedetomidine group; 31 in the placebo
group). Dexmedetomidine group patients received dexmedetomidine, and placebo
group patients received an equal volume of physiological saline 20 minutes
before anesthesia induction. Cognitive function was evaluated using the
Montreal Cognitive Assessment 1 day before surgery and on postoperative day
(POD)1, POD3, and POD7. The regional cerebral oxygen saturation
(rSO2) was monitored continuously by near-infrared
spectroscopy before anesthesia. Results The Montreal Cognitive Assessment score was significantly different between
the two groups on POD1 (dexmedetomidine 26.4 ± 0.73 vs.
placebo 25.5 ± 0.96) and POD3 (dexmedetomidine 27.1 ± 0.79
vs. placebo 26.6 ± 0.80). Specifically, attention and
orientation scores were increased in the dexmedetomidine group on POD1 and
POD3. The rSO2 was not significantly different between the
dexmedetomidine and placebo groups. Conclusion Dexmedetomidine given before induction of anesthesia could reduce the risk of
postoperative cognitive dysfunction and might not decrease rSO2.
Hence, dexmedetomidine could be employed in pulmonary surgical procedures,
especially for older patients with a high risk of cognitive dysfunction.
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Affiliation(s)
- Tao Liu
- Department of Anesthesiology, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - Fang-Chao Liu
- Scientific Research Office, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - Yu Xia
- National Clinical Laboratory on Tuberculosis, Beijing Key Laboratory for Drug-resistant Tuberculosis Research, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Institute, Beijing, China
| | - Tai-Jun Luo
- Department of Anesthesiology, Beijing Jishuitan Hospital, Beijing, China
| | - Fei Wang
- Department of Anesthesiology, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - Bin Chen
- Department of Anesthesiology, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - Chun Wang
- Department of Anesthesiology, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - Guang-Kuo Gao
- Department of Anesthesiology, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - Wen-Ting Zhai
- Department of Anesthesiology, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
| | - Wei Liu
- Department of Anesthesiology, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
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4
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Lorenzen U, Grünewald M. [Targeted hemodynamic monitoring in the operating theatre: what for and by what means?]. Anasthesiol Intensivmed Notfallmed Schmerzther 2022; 57:246-262. [PMID: 35451032 DOI: 10.1055/a-1472-4285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Goal directed hemodynamic monitoring and the balance in goal directed therapy between adequate fluid/volume therapy and the application of vasoactive or inotropic drugs are the basic elements of modern perioperative therapy.Surgical procedures should be accompanied by as few side effects and complications as possible. Nevertheless, the number of postoperative complications remains surprisingly high, despite of the modern surgical procedures. Anticipation of potential complications in the perioperative period and their rapid treatment build a core competence of anesthesiological action. Thus, it is clear that anesthesia plays a central role in this balancing act.This article aims to provide an overview of the application of the currently available perioperative goal directed hemodynamic monitoring. The current possibilities are discussed by using a case example and an outlook on the future of hemodynamic monitoring is given.
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Affiliation(s)
- Ulf Lorenzen
- Klinik für Anästhesiologie und Operative Intensivmedizin, Universitätsklinikum Schleswig-Holstein, Campus Kiel, Kiel
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5
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Song J, Cheng C, Sheng K, Jiang LL, Li Y, Xia XQ, Hu XW. Association between the reactivity of local cerebral oxygen saturation after hypo-to-hypercapnic tests and delirium after abdominal surgery in older adults: A prospective study. Front Psychiatry 2022; 13:907870. [PMID: 36405895 PMCID: PMC9672925 DOI: 10.3389/fpsyt.2022.907870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 09/30/2022] [Indexed: 11/06/2022] Open
Abstract
OBJECTIVE This study aimed to investigate the correlation between changes in regional cerebral oxygen saturation (rSO2) and postoperative delirium in older adults undergoing major abdominal surgery. MATERIALS AND METHODS This prospective study enrolled older adults scheduled for elective major abdominal surgery at the Second Affiliated Hospital of Anhui Medical University from August 2021 to January 2022. The change in rSO2 from baseline was determined using the hypo-to-hypercapnic test. The main study outcome was the occurrence of postoperative delirium. RESULTS A total of 101 participants were included for analysis, of whom 16 (15.8%) developed postoperative delirium. Compared with non-delirium participants, the mean arterial pressure and heart rate were not significantly different in the postoperative delirium group at T0, T1, T2, T3, T4, and T6 (all Pinteraction > 0.05), but the delirium group had lower pH, lower PaO2, and higher lactate levels at T4, T5, and T6 (all Pinteraction < 0.05). rSO2 at T0, T1, T2, T3, T4, and T6 was 69.0 (63.2-75.2), 70.7 ± 7.3, 68.2 ± 7.5, 72.1 ± 8.0, 69.9 ± 7.8, 67.4 ± 7.2, and 71.7 ± 8.1, respectively. The postoperative change in rSO2 during the hypercapnia test (TΔrSO2%) was 6.62 (5.31-9.36). Multivariable analysis showed that the Cumulative Illness Rating Scale (odd ratio, OR = 1.89, 95% confidence interval, CI: 1.10-3.25, P = 0.021), preoperative albumin levels (OR = 0.67, 95% CI: 0.48-0.94, P = 0.022), rSO2 at T4 (OR = 0.61, 95% CI: 0.41-0.89, P = 0.010), and postoperative TΔrSO2% (OR = 0.80, 95% CI: 0.66-0.98, P = 0.028) were independently associated with postoperative delirium in older adults undergoing elective abdominal surgery. CONCLUSION The rSO2 measured at T4 and postoperative TΔrSO2% were independently associated with postoperative delirium in older adults undergoing elective abdominal surgery.
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Affiliation(s)
- Jie Song
- Department of Anaesthesiology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Chen Cheng
- Department of Anaesthesiology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Kui Sheng
- Department of Anaesthesiology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Ling-Ling Jiang
- Department of Anaesthesiology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Yun Li
- Department of Anaesthesiology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Xiao-Qiong Xia
- Department of Anaesthesiology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China.,Department of Anaesthesiology, The Chaohu Affliated Hospital of Anhui Medical University, Hefei, China
| | - Xian-Wen Hu
- Department of Anaesthesiology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
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6
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Shen L, Chen JQ, Yang XL, Hu JC, Gao W, Chai XQ, Wang D. Flurbiprofen used in one-lung ventilation improves intraoperative regional cerebral oxygen saturation and reduces the incidence of postoperative delirium. Front Psychiatry 2022; 13:889637. [PMID: 36117654 PMCID: PMC9470861 DOI: 10.3389/fpsyt.2022.889637] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 08/04/2022] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND We previously demonstrated that flurbiprofen increased arterial oxygen partial pressure and reduced intrapulmonary shunts. The present study aims to investigate whether flurbiprofen improves intraoperative regional cerebral oxygen saturation (rScO2) and reduces the incidence of postoperative delirium (POD) in elderly patients undergoing one-lung ventilation (OLV). METHODS One hundred and twenty patients undergoing thoracoscopic lobectomy were randomly assigned to the flurbiprofen-treated group (n = 60) and the control-treated group (n = 60). Flurbiprofen was intravenously administered 20 minutes before skin incision. The rScO2 and partial pressure of arterial oxygen (PaO2) were recorded during the surgery, and POD was measured by the Confusion Assessment Method (CAM) within 5 days after surgery. The study was registered in the Chinese Clinical Trial Registry with the number ChiCTR1800020032. RESULTS Compared with the control group, treatment with flurbiprofen significantly improved the mean value of intraoperative rScO2 as well as the PaO2 value (P < 0.05, both) and significantly reduced the baseline values of the rScO2 area under threshold (AUT) (P < 0.01) at 15, 30, and 60 min after OLV in the flurbiprofen-treated group. After surgery, the POD incidence in the flurbiprofen-treated group was significantly decreased compared with that in the control group (P < 0.05). CONCLUSION Treatment with flurbiprofen may improve rScO2 and reduce the incidence of POD in elderly patients undergoing thoracoscopic one-lung ventilation surgery for lung cancer. CLINICAL TRIAL REGISTRATION http://www.chictr.org/cn/, identifier ChiCTR1800020032.
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Affiliation(s)
- Liang Shen
- Department of Anesthesiology, Anhui Provincial Hospital Affiliated to Anhui Medical University, Hefei, China.,Pain Clinic, Department of Anesthesiology, First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China (USTC), Hefei, China
| | - Jia-Qi Chen
- Pain Clinic, Department of Anesthesiology, First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China (USTC), Hefei, China
| | - Xin-Lu Yang
- Pain Clinic, Department of Anesthesiology, First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China (USTC), Hefei, China
| | - Ji-Cheng Hu
- Pain Clinic, Department of Anesthesiology, First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China (USTC), Hefei, China
| | - Wei Gao
- Pain Clinic, Department of Anesthesiology, First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China (USTC), Hefei, China
| | - Xiao-Qing Chai
- Pain Clinic, Department of Anesthesiology, First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China (USTC), Hefei, China
| | - Di Wang
- Pain Clinic, Department of Anesthesiology, First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China (USTC), Hefei, China
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7
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Bernholm KF, Meyhoff CS, Bickler P. Association between tissue oxygenation and myocardial injury in patients undergoing major spine surgery: a prospective cohort study. BMJ Open 2021; 11:e044342. [PMID: 34535471 PMCID: PMC8451303 DOI: 10.1136/bmjopen-2020-044342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE To describe the association between intraoperative tissue oxygenation and postoperative troponin elevation in patients undergoing major spine surgery. We hypothesised that a decrease in intraoperative skeletal muscle tissue oxygenation (SmO2) was associated with the peak postoperative cardiac troponin value. DESIGN This is a prospective cohort study. SETTING Single-centre, University of California San Francisco Medical Center. PARTICIPANTS Seventy adult patients undergoing major elective spine surgery. PRIMARY AND SECONDARY OUTCOME MEASURES High-sensitivity troponin T (hsTnT) was measured in plasma preoperatively and on the first and second day after surgery to assess the primary outcome of peak postoperative hsTnT. Secondary outcomes included MINS and intensive care unit (ICU) admission within 30 days. Skeletal cerebral tissue oxygenation and SmO2 was measured continuously with near-infrared spectroscopy during surgery. The primary exposure variable was time-weighted area under the curve (TW AUC) for SmO2. RESULTS Mean age was 65 (33-85) years and 59% were female. No significant association was found between TW AUC for SmO2 and peak hsTnT (Spearman's correlation, rs=0.17, p=0.16). A total of 28 (40%) patients had MINS. ICU admission occurred in 14 (40%) in lower vs 25 (71%) in upper half of patients based on TW AUC for SmO2, p=0.008. CONCLUSIONS Decrease in SmO2 was not a statistically significant predictor for peak troponin value following major spine surgery but is a potential predictor for other postoperative complications. TRIAL REGISTRATION NUMBER NCT03518372.
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Affiliation(s)
- Katrine Feldballe Bernholm
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, California, USA
- Department of Anaesthesia and Intensive Care, Bispebjerg Hospital, Copenhagen, Denmark
| | - Christian S Meyhoff
- Department of Anaesthesia and Intensive Care, Bispebjerg Hospital, Copenhagen, Denmark
- Copenhagen Center for Translational Research, Bispebjerg and Frederiksberg Hospital, Copenhagen University Hospital, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Philip Bickler
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, California, USA
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8
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Karaveli A, Kavaklı AS, Özçelik M, Ateş M, İnanoğlu K, Özmen S. The effect of different levels of pneumoperitoneum pressures on regional cerebral oxygenation during robotic assisted laparoscopic prostatectomy. Turk J Med Sci 2021; 51:1136-1145. [PMID: 33387989 PMCID: PMC8283475 DOI: 10.3906/sag-2005-368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 01/01/2021] [Indexed: 11/13/2022] Open
Abstract
Background/aim This study aimed to evaluate the effect of low- and high-pressure pneumoperitoneum pressures applied during robotic-assisted laparoscopic prostatectomy (RALP) using near-infrared spectroscopy (NIRS) on regional cerebral oxygenation saturation (rSO2). Materials and methods The prospective, comparative, and observational study included patients aged 18–80 years, with the American Society of Anesthesiologists (ASA) physical status I-II, who would undergo elective RALP. The patients were divided into two groups (12 mmHg of pneumoperitoneum pressure group, n=22 and 15 mmHg of pneumoperitoneum pressure group, n=23). Patients’ demographic data, durations of anesthesia, surgery, pneumoperitoneum, and Trendelenburg position, intraoperative estimated blood loss, fluid therapy, urine output, hemodynamic and respiratory data, and rSO2 values were recorded at regular intervals. Results The rSO2 values increased significantly during the pneumoperitoneum combined with steep Trendelenburg position (from
t3
to
t6
) and at the end of the surgery (
t7
) in both groups, compared to the values 5 min after the onset of pneumoperitoneum in the supine position (
t2
) (P < 0.05), but no statistical significance was observed between the two groups. No cerebral desaturation was observed in any of our patients. Hemodynamic and respiratory parameters were preserved in both groups. The blood lactate levels were significantly higher in patients operated at high-pressure pneumoperitoneum, compared to those with low-pressure pneumoperitoneum (P < 0.05). Conclusion We believe that low-pressure pneumoperitoneum, especially in robotic surgeries, such as robotic-assisted laparoscopic prostatectomy (RALP), can be applied safely.
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Affiliation(s)
- Arzu Karaveli
- Department of Anesthesiology and Reanimation, Antalya Training and Research Hospital, University of Health Sciences, Antalya, Turkey
| | - Ali Sait Kavaklı
- Department of Anesthesiology and Reanimation, Antalya Training and Research Hospital, University of Health Sciences, Antalya, Turkey
| | - Murat Özçelik
- Department of Anesthesiology and Reanimation, Antalya Training and Research Hospital, University of Health Sciences, Antalya, Turkey
| | - Mutlu Ateş
- Department of Urology, Antalya Training and Research Hospital, University of Health Sciences, Antalya, Turkey
| | - Kerem İnanoğlu
- Department of Anesthesiology and Reanimation, Antalya Training and Research Hospital, University of Health Sciences, Antalya, Turkey
| | - Sadık Özmen
- Department of Anesthesiology and Reanimation, Antalya Training and Research Hospital, University of Health Sciences, Antalya, Turkey
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9
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Saka E, Abdullah T, Canbaz M, Aygun E, Dolas I, Sabanci PA, Akinci IO, Ali A. Comparison of arterial blood pressure and cardiac index-based hemodynamic management on cognitive function in elderly patients undergoing spinal surgery: a randomized clinical trial. Minerva Anestesiol 2021; 87:757-765. [PMID: 33938672 DOI: 10.23736/s0375-9393.21.14759-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND Postoperative delayed neurocognitive recovery (DNR) is frequent in elderly patients. Prevention of DNR is essential to achieve a better postoperative outcome. METHODS The aim of the present study was to compare mean arterial pressure (MAP) and Cardiac Index (CI) based hemodynamic management on early cognitive function in elderly patients undergoing spinal surgery. Sixty patients aged ≥60 years were enrolled. Patients were randomized to one of two groups. In Group MAP, hemodynamic management of patients was performed according to the MAP value. In Group CI, hemodynamic management of patients was performed according to the CI value. In all patients, standard anesthesia method was used and regional cerebral oxygen saturation (rScO<inf>2</inf>) was measured. Cognitive functions of patients were assessed by Montreal cognitive assessment (MoCA) test before surgery and seven days after surgery. Change in MoCA test (ΔMoCA) was calculated. RESULTS Postoperative MoCA score was significantly greater in Group CI (25.2±2.4) than Group MAP (23.9±2.5) (P=0.046). The ΔMoCAs were 1 (IQR, 0-3) and 3 (IQR, 2-3.5) in Group CI and MAP respectively (P<0.001). Lowest and average rScO<inf>2</inf> values were significantly greater, and the decreased load of rScO2 below the threshold of 10% (AUCΔ10%) and 20% (AUCΔ20%) below its baseline were significantly lower in Group CI (P<0.05). CONCLUSIONS CI-based hemodynamic management provided better postoperative cognitive function and higher intraoperative rScO2 when compared with MAP-based hemodynamic management.
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Affiliation(s)
- Esra Saka
- Department of Anesthesiology and Reanimation, Faculty of Medicine, University of Istanbul, Istanbul, Turkey
| | - Taner Abdullah
- Department of Anesthesiology and Reanimation, Faculty of Medicine, University of Istanbul, Istanbul, Turkey -
| | - Mert Canbaz
- Department of Anesthesiology and Reanimation, Faculty of Medicine, University of Istanbul, Istanbul, Turkey
| | - Elif Aygun
- Department of Anesthesiology and Reanimation, Faculty of Medicine, University of Istanbul, Istanbul, Turkey
| | - Ilyas Dolas
- Department of Neurosurgery, Faculty of Medicine, University of Istanbul, Istanbul, Turkey
| | - Pulat A Sabanci
- Department of Neurosurgery, Faculty of Medicine, University of Istanbul, Istanbul, Turkey
| | - Ibrahim O Akinci
- Department of Anesthesiology and Reanimation, Faculty of Medicine, University of Istanbul, Istanbul, Turkey
| | - Achmet Ali
- Department of Anesthesiology and Reanimation, Faculty of Medicine, University of Istanbul, Istanbul, Turkey
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10
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Hofmann R, Befekadu Abebe T, Herlitz J, James SK, Erlinge D, Yndigegn T, Alfredsson J, Kellerth T, Ravn-Fischer A, Völz S, Lauermann J, Jernberg T, Lindahl B, Langenskiöld S. Routine Oxygen Therapy Does Not Improve Health-Related Quality of Life in Patients With Acute Myocardial Infarction-Insights From the Randomized DETO2X-AMI Trial. Front Cardiovasc Med 2021; 8:638829. [PMID: 33791349 PMCID: PMC8006541 DOI: 10.3389/fcvm.2021.638829] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 02/01/2021] [Indexed: 12/18/2022] Open
Abstract
Background: After decades of ubiquitous oxygen therapy in all patients with acute myocardial infarction (MI), recent guidelines are more restrictive based on lack of efficacy in contemporary trials evaluating hard clinical outcomes in patients without hypoxemia at baseline. However, no evidence regarding treatment effects on health-related quality of life (HRQoL) exists. In this study, we investigated the impact of routine oxygen supplementation on HRQoL 6–8 weeks after hospitalization with acute MI. Secondary objectives included analyses of MI subtypes, further adjustment for infarct size, and oxygen saturation at baseline and 1-year follow-up. Methods: In the DETermination of the role of Oxygen in suspected Acute Myocardial Infarction (DETO2X-AMI) trial, 6,629 normoxemic patients with suspected MI were randomized to oxygen at 6 L/min for 6–12 h or ambient air. In this prespecified analysis, patients younger than 75 years of age with confirmed MI who had available HRQoL data by European Quality of Life Five Dimensions questionnaire (EQ-5D) in the national registry were included. Primary endpoint was the EQ-5D index assessed by multivariate linear regression at 6–10 weeks after MI occurrence. Results: A total of 3,086 patients (median age 64, 22% female) were eligible, 1,518 allocated to oxygen and 1,568 to ambient air. We found no statistically significant effect of oxygen therapy on EQ-5D index (−0.01; 95% CI: −0.03–0.01; p = 0.23) or EQ-VAS score (−0.57; 95% CI: −1.88–0.75; p = 0.40) compared to ambient air after 6–10 weeks. Furthermore, no significant difference was observed between the treatment groups in EQ-5D dimensions. Results remained consistent across MI subtypes and at 1-year follow-up, including further adjustment for infarct size or oxygen saturation at baseline. Conclusions: Routine oxygen therapy provided to normoxemic patients with acute MI did not improve HRQoL up to 1 year after MI occurrence. Clinical Trial Registration:ClinicalTrials.gov number, NCT01787110.
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Affiliation(s)
- Robin Hofmann
- Division of Cardiology, Department of Clinical Science and Education, Karolinska Institutet, Södersjukhuset, Stockholm, Sweden
| | | | - Johan Herlitz
- Department of Health Sciences, University of Borås, Borås, Sweden
| | - Stefan K James
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden.,Uppsala Clinical Research Center, Uppsala University, Uppsala, Sweden
| | - David Erlinge
- Department of Clinical Sciences, Cardiology, Lund University, Lund, Sweden
| | - Troels Yndigegn
- Department of Clinical Sciences, Cardiology, Lund University, Lund, Sweden
| | - Joakim Alfredsson
- Department of Health, Medicine and Caring Sciences, Linköping University, Linköping, Sweden.,Department of Cardiology, Linköping University Hospital, Linköping, Sweden
| | - Thomas Kellerth
- Department of Cardiology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - Annica Ravn-Fischer
- Department of Molecular and Clinical Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden.,Department of Cardiology, University of Gothenburg, Gothenburg, Sweden
| | - Sebastian Völz
- Department of Molecular and Clinical Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden.,Department of Cardiology, University of Gothenburg, Gothenburg, Sweden
| | - Jörg Lauermann
- Department of Cardiology, Ryhov Hospital, Jönköping, Sweden.,Department of Health, Medicine and Caring, Linköping University, Linköping, Sweden
| | - Tomas Jernberg
- Department of Clinical Sciences, Cardiology, Karolinska Institutet, Danderyd Hospital, Stockholm, Sweden
| | - Bertil Lindahl
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden.,Uppsala Clinical Research Center, Uppsala University, Uppsala, Sweden
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11
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Ortega-Loubon C, Herrera-Gómez F, Bernuy-Guevara C, Jorge-Monjas P, Ochoa-Sangrador C, Bustamante-Munguira J, Tamayo E, Álvarez FJ. Near-Infrared Spectroscopy Monitoring in Cardiac and Noncardiac Surgery: Pairwise and Network Meta-Analyses. J Clin Med 2019; 8:jcm8122208. [PMID: 31847312 PMCID: PMC6947303 DOI: 10.3390/jcm8122208] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 12/11/2019] [Indexed: 12/28/2022] Open
Abstract
Goal-directed therapy based on brain-oxygen saturation (bSo2) is controversial and hotly debated. While meta-analyses of aggregated data have shown no clinical benefit for brain near-infrared spectroscopy (NIRS)-based interventions after cardiac surgery, no network meta-analyses involving both major cardiac and noncardiac procedures have yet been undertaken. Randomized controlled trials involving NIRS monitoring in both major cardiac and noncardiac surgery were included. Aggregate-level data summary estimates of critical outcomes (postoperative cognitive decline (POCD)/postoperative delirium (POD), acute kidney injury, cardiovascular events, bleeding/need for transfusion, and postoperative mortality) were obtained. NIRS was only associated with protection against POCD/POD in cardiac surgery patients (pooled odds ratio (OR)/95% confidence interval (CI)/I2/number of studies (n): 0.34/0.14–0.85/75%/7), although a favorable effect was observed in the analysis, including both cardiac and noncardiac procedures. However, the benefit of the use of NIRS monitoring was undetectable in Bayesian network meta-analysis, although maintaining bSo2 > 80% of the baseline appeared to have the most pronounced impact. Evidence was imprecise regarding acute kidney injury, cardiovascular events, bleeding/need for transfusion, and postoperative mortality. There is evidence that brain NIRS-based algorithms are effective in preventing POCD/POD in cardiac surgery, but not in major noncardiac surgery. However, the specific target bSo2 threshold has yet to be determined.
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Affiliation(s)
- Christian Ortega-Loubon
- Department of Cardiac Surgery, University Clinical Hospital of Valladolid, Ramon y Cajal Ave. 3, 47003 Valladolid, Spain; (C.O.-L.); (J.B.-M.)
- BioCritic. Group for Biomedical Research in Critical Care Medicine, Ramon y Cajal Ave. 7, 47005 Valladolid, Spain; (P.J.-M.); (E.T.); (F.J.Á.)
| | - Francisco Herrera-Gómez
- BioCritic. Group for Biomedical Research in Critical Care Medicine, Ramon y Cajal Ave. 7, 47005 Valladolid, Spain; (P.J.-M.); (E.T.); (F.J.Á.)
- Pharmacological Big Data Laboratory, Department of Pharmacology and Therapeutics, University of Valladolid, Ramon y Cajal Ave. 7, 47005 Valladolid, Spain;
- Department of Anatomy and Radiology, Faculty of Medicine, University of Valladolid, Ramon y Cajal Ave. 7, 47005 Valladolid, Spain
- Correspondence: ; Tel.: +34-689-61-64-13
| | - Coralina Bernuy-Guevara
- Pharmacological Big Data Laboratory, Department of Pharmacology and Therapeutics, University of Valladolid, Ramon y Cajal Ave. 7, 47005 Valladolid, Spain;
| | - Pablo Jorge-Monjas
- BioCritic. Group for Biomedical Research in Critical Care Medicine, Ramon y Cajal Ave. 7, 47005 Valladolid, Spain; (P.J.-M.); (E.T.); (F.J.Á.)
- Department of Anaesthesiology, University Clinical Hospital of Valladolid, Ramon y Cajal Ave. 3, 47003 Valladolid, Spain
- Department of Surgery, Faculty of Medicine, University of Valladolid, Ramon y Cajal Ave. 7, 47005 Valladolid, Spain
| | - Carlos Ochoa-Sangrador
- Clinical Epidemiology Support Office, Sanidad Castilla y León, Requejo Ave. 35, 49022 Zamora, Spain;
| | - Juan Bustamante-Munguira
- Department of Cardiac Surgery, University Clinical Hospital of Valladolid, Ramon y Cajal Ave. 3, 47003 Valladolid, Spain; (C.O.-L.); (J.B.-M.)
| | - Eduardo Tamayo
- BioCritic. Group for Biomedical Research in Critical Care Medicine, Ramon y Cajal Ave. 7, 47005 Valladolid, Spain; (P.J.-M.); (E.T.); (F.J.Á.)
- Department of Anaesthesiology, University Clinical Hospital of Valladolid, Ramon y Cajal Ave. 3, 47003 Valladolid, Spain
- Department of Surgery, Faculty of Medicine, University of Valladolid, Ramon y Cajal Ave. 7, 47005 Valladolid, Spain
| | - F. Javier Álvarez
- BioCritic. Group for Biomedical Research in Critical Care Medicine, Ramon y Cajal Ave. 7, 47005 Valladolid, Spain; (P.J.-M.); (E.T.); (F.J.Á.)
- Pharmacological Big Data Laboratory, Department of Pharmacology and Therapeutics, University of Valladolid, Ramon y Cajal Ave. 7, 47005 Valladolid, Spain;
- Ethics Committee of Drug Research–East Valladolid, University Clinical Hospital of Valladolid, Ramon y Cajal Ave. 3, 47003 Valladolid, Spain
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12
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Comparison of the effect of sevoflurane or propofol anesthesia on the regional cerebral oxygen saturation in patients undergoing carotid endarterectomy: a prospective, randomized controlled study. BMC Anesthesiol 2019; 19:157. [PMID: 31421685 PMCID: PMC6698343 DOI: 10.1186/s12871-019-0820-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 08/01/2019] [Indexed: 11/26/2022] Open
Abstract
Background The monitoring of regional cerebral oxygen saturation (SrO2) using near-infrared spectroscopy is useful method to detect cerebral ischemia during. Sevoflurane and propofol decrease cerebral metabolic rate (CMRO2) in a similar manner, but the effects on the cerebral blood flow (CBF) are different. We hypothesized that the effects of sevoflurane and propofol on SrO2 were different in patients with deficits of CBF. This study compared the effect of sevoflurane and propofol on SrO2 of patients undergoing cerebral endarterectomy (CEA). Method Patients undergoing CEA were randomly assigned to the sevoflurane or propofol group (n = 74). The experiment was preceded in 2 stages based on carotid artery clamping. The first stage was from induction of anaesthesia to immediately before clamping of the carotid artery, and the second stage was until the end of the operation after clamping of the carotid artery. Oxygen saturation (SrO2, SpO2), haemodynamic variables (blood pressure, heart rate), respiratory parameters (end-tidal carbon dioxide tension, inspired oxygen tension), concentration of anesthetics, and anesthesia depth (bispectral index score) were recorded. Results During stage 1 period (before carotid artery clamping), the mean value of the relative changes in SrO2 was higher (P = 0.033) and the maximal decrease in SrO2 was lower in the sevoflurane group compared with the propofol group (P = 0.019) in the contralateral (normal) site. However, there is no difference in ipsilateral site (affected site). SrO2 decreased after carotid artery clamping and increased after declamping, but the difference was not significant between two groups. Changes in mean arterial blood pressure was lower in sevoflurane group than propofol group after the carotid artery declamping (P = 0.048). Conclusion Propofol-remifentanil anesthesia was comparable with sevoflurane-remifentanil anesthesia in an aspect of preserving the SrO2 in patients undergoing carotid endarterectomy. Trial registration Clinical Trials.gov identifier: NCT02609087, retrospectively registered on November 18, 2015.
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13
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Wang X, Feng K, Liu H, Liu Y, Ye M, Zhao G, Wang T. Regional cerebral oxygen saturation and postoperative delirium in endovascular surgery: a prospective cohort study. Trials 2019; 20:504. [PMID: 31412906 PMCID: PMC6694555 DOI: 10.1186/s13063-019-3586-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 07/16/2019] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Delirium is an acute mental disorder and common postoperative complication. Monitoring regional cerebral oxygen saturation (rSO2) in endovascular therapeutic surgery may allow real-time monitoring of cerebral desaturation, avoiding profound cerebral dysfunction, and reducing the incidence of delirium. We sought to examine the incidence of delirium in patients undergoing endovascular surgery. METHODS This was a clinical cohort trial (registered with http://www.clinicaltrials.gov [NCT02356133]). We monitored the rSO2 of 43 patients undergoing general anesthesia and cerebral endovascular surgery. The occurrence of delirium after surgery was recorded with the Confusion Assessment Method (CAM). Multivariate logistic regression was performed to identify the main predictor of delirium. RESULTS rSO2 was significantly different between the delirium and no-delirium groups. The occurrence of delirium was 35% in our cohort, and higher rSO2 desaturation scores were significantly associated with profound delirium (higher CAM score; odds ratio = 1.002; P = 0.021). The maximum declines of systolic blood pressure were 24.86 (21.78-27.93) and 32.98 (28.78-37.19) in the no-delirium and delirium groups, respectively, which were significantly different (P = 0.002) but not closely associated with delirium in multivariate analysis (P = 0.512). Anesthesia, mechanical ventilation duration, and having two vascular risk factors differed significantly between groups but were poorly associated with delirium outcome. CONCLUSIONS Elevated rSO2 desaturation score was predictive of the occurrence of postoperative delirium following endovascular surgery. Monitoring rSO2 is invaluable for managing controlled hypotension during endovascular surgery and reducing postoperative delirium. TRIAL REGISTRATION ClinicalTrials.gov, NCT02356133 . Registered 1 February 2015. All statistical analysis results submitted August 4, 2018.
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Affiliation(s)
- Xiaohua Wang
- Department of Anesthesiology, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China.,Institute of Geriatrics, Beijing, China.,National Clinical Research Center for Geriatric Disorders, Beijing, China
| | - Kunpeng Feng
- Department of Anesthesiology, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China.,Institute of Geriatrics, Beijing, China.,National Clinical Research Center for Geriatric Disorders, Beijing, China
| | - Haixia Liu
- Department of Anesthesiology, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China.,Institute of Geriatrics, Beijing, China.,National Clinical Research Center for Geriatric Disorders, Beijing, China
| | - Yanhui Liu
- Department of Cardiac surgery, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China
| | - Ming Ye
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China
| | - Guoguang Zhao
- Department of Anesthesiology, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China. .,Institute of Geriatrics, Beijing, China. .,National Clinical Research Center for Geriatric Disorders, Beijing, China. .,Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China.
| | - Tianlong Wang
- Department of Anesthesiology, Xuanwu Hospital, Capital Medical University, Beijing, 100053, China. .,Institute of Geriatrics, Beijing, China. .,National Clinical Research Center for Geriatric Disorders, Beijing, China.
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14
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Comparison of effects of low-flow and normal-flow anesthesia on cerebral oxygenation and bispectral index in morbidly obese patients undergoing laparoscopic sleeve gastrectomy: a prospective, randomized clinical trial. Wideochir Inne Tech Maloinwazyjne 2018; 14:19-26. [PMID: 30766625 PMCID: PMC6372857 DOI: 10.5114/wiitm.2018.77265] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Accepted: 06/03/2018] [Indexed: 11/17/2022] Open
Abstract
Introduction The effects of low-flow anesthesia on cerebral oxygenation in high-risk, morbidly obese patients are not well known. Aim In this prospective randomized study, we compared the effects of low-flow (0.75 l/min) and normal-flow (1.5 l/min) anesthesia on regional cerebral oxygen saturation (rSO2) and the bispectral index (BIS) in morbidly obese patients undergoing laparoscopic bariatric surgery. Material and methods Fifty-two morbidly obese patients undergoing laparoscopic bariatric surgery (sleeve gastrectomy) were enrolled in this study. Patients were randomly allocated to two study groups: low-flow and normal-flow anesthesia groups. Heart rate, mean arterial pressure, peripheral oxygen saturation, end-tidal carbon dioxide, BIS, left and right rSO2, and duration of anesthesia and surgery were recorded. Results The groups were similar with respect to age, gender, height, weight, body mass index, American Society of Anesthesiology physical status, heart rate, duration of anesthesia, and procedure. Mean arterial pressure and end-tidal carbon dioxide, both before and after insufflation of carbon dioxide and after the reverse Trendelenburg position, were significantly higher in the low-flow group. BIS values and left and right rSO2 during the preoperative and intraoperative periods were similar. Although the difference in right rSO2 between the two groups after awakening from anesthesia was statistically significant, the results of both groups remained within the normal range and were not clinically meaningful. Conclusions Low-flow anesthesia is safe regarding hemodynamic and respiratory characteristics, depth of anesthesia, and regional cerebral oxygen saturation in morbidly obese patients undergoing laparoscopic bariatric surgery.
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15
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Farzanegan B, Eraghi MG, Abdollahi S, Ghorbani J, Khalili A, Moshari R, Jahangirifard A. Evaluation of cerebral oxygen saturation during hypotensive anesthesia in functional endoscopic sinus surgery. J Anaesthesiol Clin Pharmacol 2018; 34:503-506. [PMID: 30774231 PMCID: PMC6360878 DOI: 10.4103/joacp.joacp_248_17] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Background and Aims Controlled hypotensive anesthesia in endoscopic sinus surgery would provide a clean surgical field. Cerebral oxygen saturation (ScO2) is important in endoscopic sinus surgery patients and it may be low during controlled hypotension. The aim of the present study was to assess ScO2 in these patients. Material and Methods In this observational study, 41 patients who underwent endoscopic sinus surgery with hypotensive anesthesia were enrolled for the study and all of the patients received the same anesthetic medication, nitroglycerin for controlled hypotension. Variables were measured prior to surgery, after induction of anesthesia, 5 min, and every 30 min after controlled hypotension. Near-infrared spectroscopy was used for ScO2 evaluation. Mean arterial blood pressure (MAP) was maintained at 55-60 mmHg in the surgical duration. We used t-test, Wilcoxon, and repeated measures analysis of variance (ANOVA). We examined the cross-correlation functions of the time series data between end-tidal carbon dioxide (ETCO2)/MAP and ScO2. Results The mean of intraoperative ScO2 was not significantly different from the baseline evaluation (P > 0.05). ETCO2 was cross correlated with current ScO2 [r: 0.618, confidence interval (CI) 95%: 0.46-0.78]. We found moderate cross correlation between the MAP and current ScO2 (r: 0.728, CI 95%: 0.56-0.88). About 92% of the patients recovered within 30 min. Recovery time was associated with intraoperative MAP (P: 0.004, r: 0.438), intraoperative ETCO2 (P: 0.003, r: 0.450), and ScO2 (P: 0.026, r: 0.348). Conclusions Based on our findings, the assessment of ScO2 and maintained MAP >55 mmHg may provide safe conditions for endoscopic sinus surgery.
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Affiliation(s)
- Behrooz Farzanegan
- Tracheal Diseases Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Majid Golestani Eraghi
- Department of Anesthesiology and Critical Care, Iran University of Medical Sciences, Tehran, Iran
| | - Samira Abdollahi
- Anesthesiology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Jahangir Ghorbani
- Chronic Respiratory Diseases Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali Khalili
- Chronic Respiratory Diseases Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Reza Moshari
- Anesthesiology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Alireza Jahangirifard
- Lung Transplantation Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
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16
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Tsaroucha A, Paraskeva A, Fassoulaki A. Measurements of oxygen saturation of brain, liver and heart areas in the supine and sitting position using near infrared spectrophotometry. Rom J Anaesth Intensive Care 2017; 24:101-106. [PMID: 29090261 DOI: 10.21454/rjaic.7518.242.fss] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND AND AIMS Regional oxygen saturation (rSO2) monitoring of the brain by near-infrared spectroscopy (NIRS) has been mainly used during carotid endarterectomy. The present study was conducted in volunteers and investigates the rSO2 values of the brain, heart and liver tissue as assessed by NIRS in the supine and the sitting position. METHODS After obtaining written informed consent from forty-nine healthy volunteers, rSO2 values were recorded in the heart and liver areas in the supine and the sitting position, while simultaneously the rSO2 values of the brain. RESULTS The rSO2 brain values in the supine and the sitting position were 69 ± 6.0 and 66 ± 6.1 respectively (p = 0.0001). The rSO2 values in the supine and the sitting position were 76 ± 10.5 and 79 ± 6.7 for the heart (p > 0.05) and 85 ± 6.8 and 82 ± 7.2 for the liver, (p = 0.007). Heart rSO2 values were higher than the brain rSO2 values in both the supine (76 ± 10.4 versus 69 ± 6.6; p = 0.0001) and the sitting position (79 ± 6.7 versus 66 ± 6.1; p = 0.0001). The liver rSO2 values were also higher than the brain rSO2 values in the supine (85 ± 6.8 versus 69 ± 6.0; p = 0.0001) and in the sitting position (82 ± 7.2 versus 66 ± 5.7; p = 0.0001). Arterial blood pressure and arterial oxygen saturation (SpO2) did not differ between the two positions but the heart rate was higher in the sitting position (p = 0.030). CONCLUSIONS We conclude that brain and liver (but not heart) rSO2 values are higher in the supine than sitting position. Additionally, NIRS may be used to assess oxygenation of the heart and liver.
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Affiliation(s)
- Athanasia Tsaroucha
- National and Kapodistrian University of Athens, Aretaieio Hospital, Department of Anesthesiology, Athens, Greece
| | - Anteia Paraskeva
- National and Kapodistrian University of Athens, Aretaieio Hospital, Department of Anesthesiology, Athens, Greece
| | - Argyro Fassoulaki
- National and Kapodistrian University of Athens, Aretaieio Hospital, Department of Anesthesiology, Athens, Greece
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17
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Cerebral oxygen desaturation occurs frequently in patients with hypertension undergoing major abdominal surgery. J Clin Monit Comput 2017; 32:285-293. [DOI: 10.1007/s10877-017-0024-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Accepted: 04/26/2017] [Indexed: 11/27/2022]
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18
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Funk DJ, Kumar A, Klar G. Decreases in cerebral saturation in patients with septic shock are associated with increased risk of death: a prospective observational single center study. J Intensive Care 2016; 4:42. [PMID: 27366323 PMCID: PMC4928281 DOI: 10.1186/s40560-016-0167-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2016] [Accepted: 06/21/2016] [Indexed: 12/18/2022] Open
Abstract
Background The mortality rate from septic shock has been declining. Cerebral hypoxia, measured non-invasively with cerebral oximetry, has been correlated with neurologic and non-neurologic sequelae. Whether cerebral desaturations occur in septic shock patients and what consequences these may have is untested. Methods Adult patients with septic shock had cerebral saturation monitoring initiated. The primary objective was to determine if the incidence and magnitude of cerebral desaturations in septic shock patients correlated with delirium. We also compared the incidence and magnitude of cerebral desaturations in patients with septic shock with patients undergoing high-risk non-cardiac surgical procedures, a group known to be at high risk for cerebral desaturations. Results Fifteen patients were enrolled. Twelve (80 %) patients had a decrease in SctO2 below 65 %. Delirium was not associated with the area under the curve of an SctO2 of 65 % (p = 0.84). Patients who died of septic shock had more significant decreases in SctO2 than those who survived (p = 0.04). Decreased SctO2 was more common in patients with septic shock and was of greater magnitude than those undergoing high-risk non-cardiac surgery. Conclusions Cerebral desaturations occur more commonly and are of a greater magnitude in septic shock patients compared with those undergoing high-risk non-cardiac surgery. There did not appear to be a relationship between the incidence or magnitude of decreases in SctO2 and ICU delirium. Patients who died of septic shock had more significant decreases in SctO2 than patients who survived.
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Affiliation(s)
- Duane J Funk
- University of Manitoba, Winnipeg, Canada ; Department of Medicine, Section of Critical Care, College of Medicine, Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada
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19
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Mousa WF, Mowafi HA, Al-Metwalli RR, Al-Ghamdi AA, Al-Gameel HZ. Preoperative mannitol infusion improves perioperative cerebral oxygen saturation and enhances postoperative recovery after laparoscopic cholecystectomy. Saudi Med J 2016; 36:1199-204. [PMID: 26446331 PMCID: PMC4621726 DOI: 10.15537/smj.2015.10.12105] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Objectives: To test the effect of preoperative mannitol infusion on perioperative decreased cerebral oxygen saturation (rSO2) during laparoscopic cholecystectomy. Methods: Forty patients scheduled for laparoscopic cholecystectomy were enrolled in this study conducted at Dammam Hospital of the University, Dammam, Kingdom of Saudi Arabia from December 2013 to June 2014. Patients received either 0.5 g/kg of 20% intravenous mannitol infusion over 10 minutes before induction of anesthesia (group M), or an equal volume of normal saline instead (group C). Primary outcome variable was rSO2. Other variables included extubation time, clinical assessment of consciousness recovery using the Modified Observer’s Assessment of Alertness/Sedation Scale (OAA/S), and the mini-mental state examination (MMSE) for cognitive evaluation. Results: Anesthesia induction increased rSO2 in both groups. Pneumoperitoneum decreased rSO2 in group C, but not in group M. This drop in rSO2 in the group C reached its maximum 30 minutes after extubation, and was significantly less than the preinduction value. Time to extubation in group M was significantly shorter compared to group C (p=0.007). The OAAS in group M at 10 min after extubation was significantly higher compared to group C. No differences were found between the 2 groups in cognitive function as measured by MMSE score. Conclusion: Preoperative mannitol infusion maintains perioperative rSO2 during laparoscopic cholecystectomy and shortens extubation time with earlier resurgence of OAAS.
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Affiliation(s)
- Wesam F Mousa
- Anesthesiology Department, King Fahd University Hospital, Al Khobar, Kingdom of Saudi Arabia. E-mail.
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20
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Lahaye L, Grasso M, Green J, Biddle CJ. Cerebral tissue O2 saturation during prolonged robotic surgery in the steep Trendelenburg position: an observational case series in a diverse surgical population. J Robot Surg 2015; 9:19-25. [PMID: 26530967 DOI: 10.1007/s11701-014-0483-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Accepted: 08/03/2014] [Indexed: 11/29/2022]
Abstract
Demands associated with the Trendelenburg position (TP) are well known yet there is little attention given to regional cerebral tissue O2 saturation (SctO2) in those undergoing robotic surgery in the TP with CO2 insufflation (C-INSF). This is the first study to report on SctO2 in a wide range of patients undergoing lengthy TP and robotic surgery. We measured SctO2 during robotic surgery in patients in the TP with C-INSF, as well as a control robotic thyroid surgery group who were supine with no C-INSF. We recorded relevant variables and periods of cerebral desaturation (CD). We studied 42 patients in 25°-45° of TP for ≥125 min. Management was at the providers' discretion. The INVOS(®) 5100C Cerebral Oximeter (Covidien, Boulder, CO) recorded SctO2. CD was defined as a >20 % decrease from baseline SctO2 or a value ≤55 % for ≥10 min. Patients were assessed for adverse outcome. The sample consisted of 13 males and 29 females aged 22-73, BMI 22-36 had general (N = 3), urological (N = 14) and gynecological (N = 25) surgery; two patients had CD lasting 150 and 190 min and two had episodic CD lasting 10-35 min. The four were female aged 22-60 in 38°-45° of TP. Eleven cases had multiple episodic CD for ≤15 min, 27 TP cases had no CD. Other observations included a consistent fall in SctO2 with phenylephrine; an increased SctO2 with ephedrine; and FiO2 and EtCO2 being generally strong, direct modifiers of SctO2. High MAP was inconsistently associated with high SctO2. BMI had no observed effect on SctO2. Pulse oximetry was ≥97 % in all cases. We observed no adverse cerebral events on follow-up. Additional clinical studies are warranted.
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Affiliation(s)
- Laura Lahaye
- Department of Anesthesiology, Virginia Commonwealth University, Richmond, VA, USA.
| | - Mario Grasso
- Department of Anesthesiology, Virginia Commonwealth University, Richmond, VA, USA
| | - Jeffrey Green
- Department of Anesthesiology, Virginia Commonwealth University, Richmond, VA, USA
| | - C J Biddle
- Department of Anesthesiology, Virginia Commonwealth University, Richmond, VA, USA
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Hernandez-Meza G, Izzetoglu M, Osbakken M, Green M, Izzetoglu K. Near-infrared spectroscopy for the evaluation of anesthetic depth. BIOMED RESEARCH INTERNATIONAL 2015; 2015:939418. [PMID: 26495317 PMCID: PMC4606411 DOI: 10.1155/2015/939418] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Accepted: 08/23/2015] [Indexed: 01/30/2023]
Abstract
The standard-of-care guidelines published by the American Society of Anesthesiologists (ASA) recommend monitoring of pulse oximetry, blood pressure, heart rate, and end tidal CO2 during the use of anesthesia and sedation. This information can help to identify adverse events that may occur during procedures. However, these parameters are not specific to the effects of anesthetics or sedatives, and therefore they offer little, to no, real time information regarding the effects of those agents and do not give the clinician the lead-time necessary to prevent patient "awareness." Since no "gold-standard" method is available to continuously, reliably, and effectively monitor the effects of sedatives and anesthetics, such a method is greatly needed. Investigation of the use of functional near-infrared spectroscopy (fNIRS) as a method for anesthesia or sedation monitoring and for the assessment of the effects of various anesthetic drugs on cerebral oxygenation has started to be conducted. The objective of this paper is to provide a thorough review of the currently available published scientific studies regarding the use of fNIRS in the fields of anesthesia and sedation monitoring, comment on their findings, and discuss the future work required for the translation of this technology to the clinical setting.
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Affiliation(s)
- Gabriela Hernandez-Meza
- School of Biomedical Engineering, Science and Health Systems, Drexel University, 3508 Market Street, Suite 100, Philadelphia, PA 19104, USA
| | - Meltem Izzetoglu
- School of Biomedical Engineering, Science and Health Systems, Drexel University, 3508 Market Street, Suite 100, Philadelphia, PA 19104, USA
| | - Mary Osbakken
- School of Biomedical Engineering, Science and Health Systems, Drexel University, 3508 Market Street, Suite 100, Philadelphia, PA 19104, USA
| | - Michael Green
- Department of Anesthesiology, Drexel University College of Medicine, Hahnemann University Hospital, 245 N. 15th Street, MS 310, Philadelphia, PA 19102, USA
| | - Kurtulus Izzetoglu
- School of Biomedical Engineering, Science and Health Systems, Drexel University, 3508 Market Street, Suite 100, Philadelphia, PA 19104, USA
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Hillebrand J, Zheng Z, Ploss A, Herrmann E, Moritz A, Martens S. Axillary artery cannulation provides balanced cerebral oxygenation. Heart Vessels 2015; 31:1077-83. [PMID: 26113457 DOI: 10.1007/s00380-015-0704-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Accepted: 06/12/2015] [Indexed: 10/23/2022]
Abstract
Deterioration of cerebral performance remains a major problem after cardiac surgery. Axillary artery cannulation can improve clinical outcome, but some experimental series show a malperfusion of the right hemisphere. The aim of our clinical study was to analyze the intraoperative investigation of cerebral oxygenation in two different arterial cannulation sites by use of near-infrared spectroscopic oximetry (NIRO). We compared retrospectively the cerebral saturation of 20 patients with aortic cannulation (group AoC) and 20 patients with right axillary artery cannulation (group AxC) during either valve, coronary artery bypass graft (CABG), combined procedures, or aortic surgery. Patients were monitored with bihemispheric NIRO (NIRO-200, Hamamatsu, Herrsching, Germany). The oxygenation data were calculated as tissue oxygenation index (TOI). And the cardiopulmonary bypass time was considered with special regard to potentially dangerous phases for cerebral desaturation like the starting of the extracorporeal circulation (ECC), cross-clamping, rewarming phase, aortic declamping, and stopping of ECC. Patients were then postoperatively evaluated by a standardized neurological examination. During the entire CPB time and the specific phases potentially at risk for cerebral desaturation, no statistically significant drop of cerebral oxygenation (>20 % for >60 s) was detected after aortic and right axillary artery cannulation, respectively. Furthermore, no significant difference in TOI was found comparing the left and right hemisphere in each group. Postoperatively 2 transient confusional syndromes (CS) were observed after aortic and 3 CS after axillary artery cannulation. Right axillary artery cannulation provides balanced cerebral oxygenation in both hemispheres during extracorporeal circulation and its specific phases potentially at risk for cerebral malperfusion. It might therefore reduce the risk of neurological injury by reduction of solid embolization and maintenance of balanced cerebral oxygenation.
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Affiliation(s)
- Julia Hillebrand
- Department of Cardiothoracic Surgery, Division of Cardiac Surgery, University Hospital of the Westfaelische Wilhelms-University Muenster, Albert-Schweitzer-Campus 1, D-48159, Muenster, Germany.
| | - Zhi Zheng
- Department of Thoracic and Cardiovascular Surgery, Johann Wolfgang Goethe-University Hospital, Frankfurt am Main, Germany
| | - Anja Ploss
- Department of Thoracic and Cardiovascular Surgery, Johann Wolfgang Goethe-University Hospital, Frankfurt am Main, Germany
| | - Eva Herrmann
- Institute of Biostatistics and Mathematical Modeling, Johann Wolfgang Goethe-University Hospital, Frankfurt am Main, Germany
| | - Anton Moritz
- Department of Thoracic and Cardiovascular Surgery, Johann Wolfgang Goethe-University Hospital, Frankfurt am Main, Germany
| | - Sven Martens
- Department of Cardiothoracic Surgery, Division of Cardiac Surgery, University Hospital of the Westfaelische Wilhelms-University Muenster, Albert-Schweitzer-Campus 1, D-48159, Muenster, Germany
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Steppan J, Hogue CW. Cerebral and tissue oximetry. Best Pract Res Clin Anaesthesiol 2014; 28:429-39. [PMID: 25480772 DOI: 10.1016/j.bpa.2014.09.002] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Revised: 09/10/2014] [Accepted: 09/16/2014] [Indexed: 01/20/2023]
Abstract
The use of near-infrared spectroscopy (NIRS) has been increasingly adopted in cardiac surgery to measure regional cerebral oxygen saturation. This method takes advantage of the fact that light in the near-infrared spectrum penetrates tissue, including bone and muscle. Sensors are placed at fixed distances from a light emitter, and algorithms subtract superficial light absorption from deep absorption to provide an index of tissue oxygenation. Although the popularity of NIRS monitoring is growing, definitive data that prove outcome benefits with its use remain sparse. Therefore, widespread, routine use of NIRS as a standard-of-care monitor cannot be recommended at present. Recent investigations have focused on the use of NIRS in subgroups that may benefit from NIRS monitoring, such as pediatric patients. Furthermore, a novel application of processed NIRS information for monitoring cerebral autoregulation and tissue oxygenation (e.g., kidneys and the gut) is promising.
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Affiliation(s)
- Jochen Steppan
- Department of Anesthesiology and Critical Care Medicine, The Johns Hopkins Medical Institutions, Baltimore, MD, USA
| | - Charles W Hogue
- Department of Anesthesiology and Critical Care Medicine, The Johns Hopkins Medical Institutions, Baltimore, MD, USA.
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Salazar F, Doñate M, Boget T, Bogdanovich A, Basora M, Torres F, Gracia I, Fàbregas N. Relationship between intraoperative regional cerebral oxygen saturation trends and cognitive decline after total knee replacement: a post-hoc analysis. BMC Anesthesiol 2014; 14:58. [PMID: 25061427 PMCID: PMC4109378 DOI: 10.1186/1471-2253-14-58] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2013] [Accepted: 07/14/2014] [Indexed: 11/10/2022] Open
Abstract
Background Bilateral regional brain oxygen saturation (rSO2) trends, reflecting intraoperative brain oxygen imbalance, could warn of brain dysfunction. Various types of cognitive impairment, such as memory decline, alterations in executive function or subjective complaints, have been described three months after surgery. Our aim was to explore the potential utility of rSO2 values as a warning sign for the development of different types of decline in postoperative psychological function. Methods Observational post-hoc analysis of data for the patient sample (n = 125) of a previously conducted clinical trial in patients over the age of 65 years undergoing total knee replacement under spinal anesthesia. Demographic, hemodynamic and bilateral rSO2 intraoperative values were recorded. An absolute rSO2 value of <50% or a reduction of >20% or >25% below baseline were chosen as relevant cutoffs. Composite function test scores were created from baseline to three months for each patient and adjusted for the mean (SD) score changes for a control group (n = 55). Tests were used to assess visual-motor coordination and executive function (VM-EF) (Wechsler Digit Symbol-Coding and Visual Reproduction, Trail Making Test) and memory (Auditory Verbal Learning, Wechsler Memory Scale); scales were used to assess psychological symptoms. Results We observed no differences in baseline rSO2 values; rSO2 decreased significantly in all patients during surgery (P < 0.0001). Seventy-five patients (60%) had no sign of cognitive decline or psychological symptoms. Twenty-one patients (16.8%) had memory decline, 3 (2.4%) had VM-EF decline, and 33 (26.4%) had psychological symptoms. Left and right rSO2 values were asymmetric in patients who had memory decline (mean [SD] left-right ratio of 95.03 [8.51] vs 101.29 [6.7] for patients with no changes, P = 0.0012). The mean right-left difference in rSO2 was also significant in these patients (-2.87% [4.73%], lower on the right, P = 0.0034). Conclusions Detection of a trend to asymmetry in rSO2 values can warn of possible postoperative onset of memory decline. Psychological symptoms and memory decline were common three months after knee replacement in our patients over the age of 65 years.
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Affiliation(s)
- Fátima Salazar
- Department of Anesthesia, Hospital Clinic de Barcelona, (Universitat de Barcelona), Barcelona, Spain
| | - Marta Doñate
- Department of Neuropsychology, Hospital Clinic de Barcelona, (Universitat de Barcelona), Barcelona, Spain
| | - Teresa Boget
- Department of Neuropsychology, Hospital Clinic de Barcelona, (Universitat de Barcelona), Barcelona, Spain
| | - Ana Bogdanovich
- Department of Anesthesia, Hospital Clinic de Barcelona, (Universitat de Barcelona), Barcelona, Spain
| | - Misericordia Basora
- Department of Anesthesia, Hospital Clinic de Barcelona, (Universitat de Barcelona), Barcelona, Spain
| | - Ferran Torres
- Statistics & Methodology Support Unit (USEM), IDIBAPS, (Hospital Clinic de Barcelona), Laboratory of Biostatistics & Epidemiology (Universitat Autonoma de Barcelona), Barcelona, Spain
| | - Isabel Gracia
- Department of Anesthesia, Hospital Clinic de Barcelona, (Universitat de Barcelona), Barcelona, Spain
| | - Neus Fàbregas
- Department of Anesthesia, Hospital Clinic de Barcelona, (Universitat de Barcelona), Barcelona, Spain
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Effects of acute bleeding followed by hydroxyethyl starch 130/0.4 or a crystalloid on propofol concentrations, cerebral oxygenation, and electroencephalographic and haemodynamic variables in pigs. Vet Med Int 2014; 2014:710394. [PMID: 24971192 PMCID: PMC4055214 DOI: 10.1155/2014/710394] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Revised: 03/31/2014] [Accepted: 04/14/2014] [Indexed: 11/18/2022] Open
Abstract
Bleeding changes the haemodynamics, compromising organ perfusion. In this study, the effects of bleeding followed by replacement with hydroxyethyl starch 130/0.4 (HES) or lactated Ringer's (LR) on cerebral oxygenation and electroencephalogram-derived parameters were investigated. Twelve young pigs under propofol-remifentanil anaesthesia were bled 30 mL/kg and, after a 20-minute waiting period, volume replacement was performed with HES (GHES; N = 6) or LR (GRL; N = 6). Bleeding caused a decrease of more than 50% in mean arterial pressure (P < 0.01) and a decrease in cerebral oximetry (P = 0.039), bispectral index, and electroencephalogram total power (P = 0.04 and P < 0.01, resp.), while propofol plasma concentrations increased (P < 0.01). Both solutions restored the haemodynamics and cerebral oxygenation similarly and were accompanied by an increase in electroencephalogram total power. No differences between groups were found. However, one hour after the end of the volume replacement, the cardiac output (P = 0.03) and the cerebral oxygenation (P = 0.008) decreased in the GLR and were significantly lower than in GHES (P = 0.02). Volume replacement with HES 130/0.4 was capable of maintaining the cardiac output and cerebral oxygenation during a longer period than LR and caused a decrease in the propofol plasma concentrations.
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Nielsen HB. Systematic review of near-infrared spectroscopy determined cerebral oxygenation during non-cardiac surgery. Front Physiol 2014; 5:93. [PMID: 24672486 PMCID: PMC3955969 DOI: 10.3389/fphys.2014.00093] [Citation(s) in RCA: 83] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Accepted: 02/21/2014] [Indexed: 02/02/2023] Open
Abstract
Near-infrared spectroscopy (NIRS) is used to monitor regional cerebral oxygenation (rScO2) during cardiac surgery but is less established during non-cardiac surgery. This systematic review aimed (i) to determine the non-cardiac surgical procedures that provoke a reduction in rScO2 and (ii) to evaluate whether an intraoperative reduction in rScO2 influences postoperative outcome. The PubMed and Embase database were searched from inception until April 30, 2013 and inclusion criteria were intraoperative NIRS determined rScO2 in adult patients undergoing non-cardiac surgery. The type of surgery and number of patients included were recorded. There was included 113 articles and evidence suggests that rScO2 is reduced during thoracic surgery involving single lung ventilation, major abdominal surgery, hip surgery, and laparoscopic surgery with the patient placed in anti-Tredelenburg's position. Shoulder arthroscopy in the beach chair and carotid endarterectomy with clamped internal carotid artery (ICA) also cause pronounced cerebral desaturation. A >20% reduction in rScO2 coincides with indices of regional and global cerebral ischemia during carotid endarterectomy. Following thoracic surgery, major orthopedic, and abdominal surgery the occurrence of postoperative cognitive dysfunction (POCD) might be related to intraoperative cerebral desaturation. In conclusion, certain non-cardiac surgical procedures is associated with an increased risk for the occurrence of rScO2. Evidence for an association between cerebral desaturation and postoperative outcome parameters other than cognitive dysfunction needs to be established.
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Affiliation(s)
- Henning B Nielsen
- Department of Anesthesia, Rigshospitalet, University of Copenhagen Copenhagen, Denmark
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Eddib A, Hughes S, Aalto M, Eswar A, Erk M, Michalik C, Krovi V, Singhal P. Impact of Age on Surgical Outcomes after Robot Assisted Laparoscopic Hysterectomies. ACTA ACUST UNITED AC 2014. [DOI: 10.4236/ss.2014.53018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Papadopoulos G, Karanikolas M, Liarmakopoulou A, Papathanakos G, Korre M, Beris A. Cerebral oximetry and cognitive dysfunction in elderly patients undergoing surgery for hip fractures: a prospective observational study. Open Orthop J 2012; 6:400-5. [PMID: 22962570 PMCID: PMC3434474 DOI: 10.2174/1874325001206010400] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2012] [Revised: 07/14/2012] [Accepted: 07/22/2012] [Indexed: 11/26/2022] Open
Abstract
Aim: This study was conducted to examine perioperative cerebral oximetry changes in elderly patients undergoing hip fracture repair and evaluate the correlation between regional oxygen saturation (rSO2) values, postoperative cognitive dysfunction (POCD) and hospital stay. Materials and Methods: This prospective observational study included 69 patients. Data recorded included demographic information, rSO2 values from baseline until the second postoperative hour and Mini Mental State Examination (MMSE) scores preoperatively and on postoperative day 7. MMSE score ≤23 was considered evidence of cognitive dysfunction. Postoperative confusion or agitation, medications administered for postoperative agitation, and hospital length of stay were also recorded. Data were analyzed with Student’s t-test, Pearson’s correlation or multiple regression analysis as appropriate. Results: Patient age was 74±13 years. Baseline left sided rSO2 values were 60±10 and increased significantly after intubation. Baseline rSO2 L<50 and <45 was observed in 11.6% and 10.1% of patients respectively. Perioperative cerebral desaturation occurred in 40% of patients. MMSE score was 26.23 ± 2.77 before surgery and 25.94 ± 2.52 on postoperative day 7 (p=0.326). MMSE scores ≤ 23 were observed preoperatively in 6 and postoperatively in 9 patients. Patients with cognitive dysfunction had lower preoperative hematocrit, hemoglobin, SpO2 and rSO2 values at all times, compared to patients who did not. There was no correlation between rSO2 or POCD and hospital stay. Patients with baseline rSO2 <5 required more medications for postoperative agitation. Conclusion: Cognitive dysfunction occurs preoperatively and postoperatively in elderly patients with hip fractures, and is associated with low cerebral rSO2 values.
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Affiliation(s)
- George Papadopoulos
- Department of Anaesthesiology and Postoperative Intensive Care, University of Ioannina School of Medicine, Ioannina, Greece
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Obrig H, Steinbrink J. Non-invasive optical imaging of stroke. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2011; 369:4470-94. [PMID: 22006902 DOI: 10.1098/rsta.2011.0252] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
The acute onset of a neurological deficit is the key clinical feature of stroke. In most cases, however, pathophysiological changes in the cerebral vasculature precede the event, often by many years. Persisting neurological deficits may also require long-term rehabilitation. Hence, stroke may be considered a chronic disease, and diagnostic and therapeutic efforts must include identification of specific risk factors, and the monitoring of and interventions in the acute and subacute stages, and should aim at a pathophysiologically based approach to optimize the rehabilitative effort. Non-invasive optical techniques have been experimentally used in all three stages of the disease and may complement the established diagnostic and monitoring tools. Here, we provide an overview of studies using the methodology in the context of stroke, and we sketch perspectives of how they may be integrated into the assessment of the highly dynamic pathophysiological processes during the acute and subacute stages of the disease and also during rehabilitation and (secondary) prevention of stroke.
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Affiliation(s)
- Hellmuth Obrig
- Department of Cognitive Neurology, University Hospital Leipzig, Liebigstraße 16, 04103 Leipzig, Germany.
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Booth EA, Dukatz C, Sood BG, Wider M. Near-infrared spectroscopy monitoring of cerebral oxygen during assisted ventilation. Surg Neurol Int 2011; 2:65. [PMID: 21697979 PMCID: PMC3115161 DOI: 10.4103/2152-7806.81722] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2011] [Accepted: 04/04/2011] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Changes in the arterial partial pressure of CO(2) (PaCO(2)) has a direct though transient effect on the cerebral vasculature and cerebral circulation. Decreased PaCO(2) levels lead to vasoconstriction and can result in dangerously low levels of cerebral perfusion that resolve in 4-6 h. It is currently believed that perfusion abnormalities contribute to intraventricular hemorrhage (IVH) and periventricular leukomalacia (PVL) in the neonate. PaCO(2)-induced vasoconstriction may contribute to the pathology of IVH and PVL. METHODS Near-infrared spectroscopy [NIRS; (INVOS cerebral/somatic oximeter; Somanetics Corporation, Troy, MI, USA)] was utilized to determine changes in regional oxygenation (rSO(2)) of the brain in response to changes in ventilation in isoflurane anesthetized newborn piglets. RESULTS Changes in cerebral rSO(2) correlated significantly with end-tidal CO(2) levels and to blood flow in the common carotid artery. This correlation was significant during baseline conditions, after periods of CO(2) loading and during periods of hypothermia. CONCLUSIONS The results of the study demonstrate the utility of NIRS to accurately reflect changes in cerebral oxygenation and flow to the brain in response to changes in CO(2) levels in anesthetized, ventilated neonatal piglets. The use of NIRS may provide an early alert of low levels of cerebral blood flow and brain oxygenation, potentially helping in preventing the progression of IVH or PVL in the neonate.
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Affiliation(s)
- Erin A Booth
- Department of Medical Science, Somanetics Corporation, Troy, MI, USA
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Carlson BW, Neelon VJ, Carlson JR, Hartman M, Bliwise DL. Cerebral oxygenation in wake and during sleep and its relationship to cognitive function in community-dwelling older adults without sleep disordered breathing. J Gerontol A Biol Sci Med Sci 2011; 66:150-6. [PMID: 21076087 PMCID: PMC3011955 DOI: 10.1093/gerona/glq200] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2010] [Accepted: 09/24/2010] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND This descriptive cross-sectional study investigated the relationships between cerebral oxygen reserve and cognitive function in community-dwelling older adults. METHODS Participants (72 women and 40 men) underwent standard polysomnography, including regional measures of percent oxyhemoglobin saturation (rcSO(2)) determined by cerebral oximetry. Two variables were used to calculate cerebral oxygen reserve: (a) awake rcSO(2) (mean presleep rcSO(2)) and (b) the change in rcSO(2) from before sleep to the end of the first non-rapid-eye movement cycle. General linear models, adjusted for the effects of education and occupation, tested differences in performance on standard tests of memory, attention, and speed of mental processing. RESULTS Awake rcSO(2) values were normal (60%-79.9%) in 64 participants, marginal (50%-59.9%) in 41, and low (43%-49.9%) in 7. Participants with normal awake levels had higher cognitive function than those with low levels (p < .05). Changes in rcSO(2) were greatest in participants with marginal awake rcSO(2) values; among whom, those who increased rcSO(2) during sleep (n = 17) had better memory function than the 24 who did not (p < .05). CONCLUSIONS Low awake rcSO(2) values mark individuals with low cerebral oxygen reserves and generally lower cognitive function; marginal awake rcSO(2) values that fall during sleep may indicate loss of cerebral oxygen reserve and an increased risk for cognitive decline. Further studies may clarify the significance of and mechanisms underlying individual differences in awake rcSO(2) and the changes that occur in rcSO(2) while asleep.
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Affiliation(s)
- Barbara W Carlson
- School of Nursing, The University of North Carolina at Chapel Hill, CB 7460 Carrington Hall, Chapel Hill, NC 27599, USA.
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Booth EA, Dukatz C, Ausman J, Wider M. Cerebral and somatic venous oximetry in adults and infants. Surg Neurol Int 2010; 1:75. [PMID: 21170366 PMCID: PMC2997227 DOI: 10.4103/2152-7806.73316] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2010] [Accepted: 09/21/2010] [Indexed: 11/05/2022] Open
Abstract
Background: The development in the last decade of noninvasive, near infrared spectroscopy (NIRS) analysis of tissue hemoglobin saturation in vivo has provided a new and dramatic tool for the management of hemodynamics, allowing early detection and correction of imbalances in oxygen delivery to the brain and vital organs. Description: The theory and validation of NIRS and its clinical use are reviewed. Studies are cited documenting tissue penetration and response to various physiologic and pharmacologic mechanisms resulting in changes in oxygen delivery and blood flow to the organs and brain as reflected in the regional hemoglobin oxygen saturation (rSO2). The accuracy of rSO2 readings and the clinical use of NIRS in cardiac surgery and intensive care in adults, children and infants are discussed. Conclusions: Clinical studies have demonstrated that NIRS can improve outcome and enhance patient management, avoiding postoperative morbidities and potentially preventing catastrophic outcomes.
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Affiliation(s)
- Erin A Booth
- Medical Science, Somanetics Corporation, Troy, USA
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33
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Park EY, Koo BN, Min KT, Nam SH. The effect of pneumoperitoneum in the steep Trendelenburg position on cerebral oxygenation. Acta Anaesthesiol Scand 2009; 53:895-9. [PMID: 19426238 DOI: 10.1111/j.1399-6576.2009.01991.x] [Citation(s) in RCA: 79] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND daVinci robot-assisted laparoscopic radical prostatectomy (RALP) requires pneumoperitoneum in the steep Trendelenburg position, which results in increased intracranial pressure and cerebral blood flow. The aim of this study was to evaluate the effect of pneumoperitoneum in a 30 degrees Trendelenburg position on cerebral oxygenation using regional cerebral oxygen saturation (rSO2). METHODS Thirty-two male patients of ASA I and II physical status without previous episodes of cerebral ischemia or hemorrhage undergoing daVinci RALP were enrolled. The rSO2 was continuously monitored with near-infrared spectroscopy (INVOS) 5100) during the study period. Measurements were obtained immediately after anesthesia induction (T0; baseline), 5 min after a 30 degrees Trendelenburg position (T1), 5 min after 15 mmHg pneumoperitoneum in a supine position (T2), 30, 60 and 120 min after the pneumoperitoneum in a Trendelenburg position (T3, T4 and T5, respectively) and after desufflation in a supine position (T6). RESULTS The change in the left and right rSO2 was statistically significant (Left P=0.004 and Right P=0.023). Both the right and the left rSO2 increased significantly during pneumoperitoneum in a Trendelenburg position (from T3 to T5) and at T6 compared with the baseline value at T0. The partial pressure of carbon dioxide (PaCO2) was increased significantly at T2, T3, T5 and T6 compared with the baseline value at T0. CONCLUSIONS During daVinci RALP, cerebral oxygenation, as assessed by rSO2, increased slightly, which suggests that the procedure did not induce cerebral ischemia. The PaCO2 should be maintained within the normal limit during pneumoperitoneum in a Trendelenburg position in patients undergoing daVinci RALP because the rSO2 increased in conjunctions with the increase in PaCO2.
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Affiliation(s)
- E Y Park
- Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul, Korea
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Carlson BW, Neelon VJ, Carlson JR, Hartman M, Dogra S. Exploratory analysis of cerebral oxygen reserves during sleep onset in older and younger adults. J Am Geriatr Soc 2008; 56:914-9. [PMID: 18384588 PMCID: PMC3377447 DOI: 10.1111/j.1532-5415.2008.01672.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVES To explore differences in cerebral oxygen reserves during sleep in old and young adults. DESIGN Descriptive cross-sectional study. SETTING General clinical research center. PARTICIPANTS Nine old (aged 65-84) and 10 young (aged 21-39) adults. MEASUREMENTS Subjects were monitored during the first nightly sleep cycle using standard polysomnography, including measures of arterial oxyhemoglobin saturation (SaO(2)). Changes in regional cerebral oxyhemoglobin saturation (rcSO(2)) were used to estimate cerebral oxygen reserves. General linear models were used to test group differences in the change in SaO(2) and rcSO(2) during sleep. RESULTS Older subjects had lower SaO(2) than young subjects before sleep (baseline) (F((1,18))=5.1, P=.04) and during sleep (F((1,18))=10.7, P=.01). During sleep, half of the older subjects and none of the younger ones had SaO(2) values below 95%. In addition, the older subjects had more periods of oxygen desaturation (drops in SaO(2) > or = 4%) (chi-square=24.3, P=.01) and lower SaO(2) levels during desaturation (F((1,18))=11.1, P<.01). Although baseline values were similar, rcSO(2) decreased during sleep 2.1% in older subjects (F((1,8))=3.8, P=.05) but increased 2.1% during sleep in younger subjects (F((1,9))=4.6, P=.04). When the older subjects awakened from sleep, rcSO(2), but not SaO(2), returned to baseline; both returned to baseline in younger subjects. CONCLUSION This exploratory analysis generated the hypothesis that lower SaO(2), combined with declines in regional blood flow, contributes to decline in cerebral oxygen reserves during sleep in older subjects. Further study will assess the effects of factors (e.g., medical conditions, subclinical disorders, and sleep architecture) that might account for these differences.
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Affiliation(s)
- Barbara W. Carlson
- Associate Professor, School of Nursing, The University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Virginia J. Neelon
- Associate Professor, School of Nursing, The University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - John R. Carlson
- Research Associate Professor, School of Nursing, The University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Marilyn Hartman
- Research Associate Professor, Department of Psychology, The University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Sunil Dogra
- Clinical Associate Professor, School of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, NC
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