scholarly journals Comparison of basic regional cerebral oxygen saturation values in patients of different ages: a pilot study

2020 ◽  
Vol 48 (8) ◽  
pp. 030006052093686
Author(s):  
Chaohui Lian ◽  
Peng Li ◽  
Ning Wang ◽  
Yi Lu ◽  
Wangning Shangguan
Keyword(s):  
Oxygen Saturation ◽  
Elective Surgery ◽  
Age Groups ◽  
The Elderly ◽  
Preschool Age ◽  
Cerebral Oxygen Saturation ◽  
Cerebral Oxygen ◽  
School Age ◽  
Regional Cerebral Oxygen Saturation ◽  
Significant Difference

Objective To explore the basic values of regional cerebral oxygen saturation (rSO2) among different age groups. Methods One hundred twenty patients who were scheduled for elective surgery aged 0 to 80 years (American Society of Anesthesiologists [ASA] physical status I or II) or neonates just after birth via cesarean section were enrolled and divided into the following six groups: infant (0 month and ≤12 months), toddler (>1 and ≤3 years old), preschool (>3 and ≤6 years old), school age (>6 and ≤18 years old), adult (>18 and ≤65 years old), and elderly (>65 and ≤80 years old) groups. There were 20 patients in each group. Results The basic values of rSO2 in infant, toddler, preschool, school age, adults, and elderly groups were 70.41% ± 4.66%, 72.43% ± 3.81%, 70.77% ± 3.27%, 70.62% ± 2.20%, 69.76% ± 6.02%, and 62.69% ± 3.14%, respectively. The basic value in the elderly group was lower compared with other five groups. There was no significant difference among infant, toddler, preschool age, school age, and adult groups. Conclusions The basic value of rSO2 in elderly patients is lower. Age is an important factor that affects the underlying value of rSO2.

scholarly journals Effects of electroencephalography and regional cerebral oxygen saturation monitoring on perioperative neurocognitive disorders: a systematic review and meta-analysis

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Lin Ding ◽  
Dong Xu Chen ◽  
Qian Li
Keyword(s):  
Cardiac Surgery ◽  
Oxygen Saturation ◽  
Neurocognitive Disorders ◽  
Cerebral Oxygen Saturation ◽  
Cochrane Library ◽  
Cerebral Oxygen ◽  
Regional Cerebral Oxygen Saturation ◽  
Cerebral Function ◽  
Postoperative Cognitive Decline ◽  
Significant Difference

Abstract Background Perioperative neurocognitive disorders (PND) is a common postoperative complication including postoperative delirium (POD), postoperative cognitive decline (POCD) or delayed neurocognitive recovery. It is still controversial whether the use of intraoperative cerebral function monitoring can decrease the incidence of PND. The purpose of this study was to evaluate the effects of different cerebral function monitoring (electroencephalography (EEG) and regional cerebral oxygen saturation (rSO2) monitoring) on PND based on the data from randomized controlled trials (RCTs). Methods The electronic databases of Ovid MEDLINE, PubMed, EMBASE, Cochrane Library database were systematically searched using the indicated keywords from their inception to April 2020. The odds ratio (OR) or mean difference (MD) with 95% confidence interval (CI) were employed to analyze the data. Heterogeneity across analyzed studies was assessed with chi-square test and I2 test. Results Twenty two RCTs with 6356 patients were included in the final analysis. Data from 12 studies including 4976 patients were analyzed to assess the association between the EEG-guided anesthesia and PND. The results showed that EEG-guided anesthesia could reduce the incidence of POD in patients undergoing non-cardiac surgery (OR: 0.73; 95% CI: 0.57–0.95; P = 0.02), but had no effect on patients undergoing cardiac surgery (OR: 0.44; 95% CI: 0.05–3.54; P = 0.44). The use of intraoperative EEG monitoring reduced the incidence of POCD up to 3 months after the surgery (OR: 0.69; 95% CI: 0.49–0.96; P = 0.03), but the incidence of early POCD remained unaffected (OR: 0.61; 95% CI: 0.35–1.07; P = 0.09). The remaining 10 studies compared the effect of rSO2 monitoring to routine care in a total of 1380 participants on the incidence of PND. The results indicated that intraoperative monitoring of rSO2 could reduce the incidence of POCD (OR 0.53, 95% CI 0.39–0.73; P < 0.0001), whereas no significant difference was found regarding the incidence of POD (OR: 0.74; 95% CI: 0.48–1.14; P = 0.17). Conclusions The findings in the present study indicated that intraoperative use of EEG or/and rSO2 monitor could decrease the risk of PND. Trial registration PROSPREO registration number: CRD42019130512.

Effects of Dexmedetomidine on cerebral oxygen saturation in patients undergoing laparoscopic hysterectomy: a randomised ,parallel-group study

2019 ◽  
Author(s):  
Qianqian Yang ◽  
Haitao Qian ◽  
Bing Wang ◽  
Fenyu Duan ◽  
Mengxun Zhu ◽  
...  
Keyword(s):  
Oxygen Saturation ◽  
Laparoscopic Hysterectomy ◽  
Cerebral Oxygen Saturation ◽  
Control Group ◽  
Cerebral Oxygen ◽  
Regional Cerebral Oxygen Saturation ◽  
Clinical Trial Registry ◽  
Trendelenburg Position ◽  
Significant Difference ◽  
The Relationship

Abstract Abstract Background:This study is to investigate the relationship between the Trendelenburg position and regional cerebral oxygen saturation (rSO2) during laparoscopic hysterectomy and possible effects of Dexmedetomidine on cerebral hypoxia of patients undergoing this surgery. Methods: Randomized, prospective and single-blinded study. Patients aged 20 to 65 years are enrolled in this trial,25 in each group. Saline and Dexmedetomidine were infused into petients of Control group and Dexmedetomidine group respectively. Regional cerebral oxygen saturation (rSO2) and hemodynamic parameters were recorded before and after induction of anesthesia and once every 20 min in the Trendelenburg position and 10 min after supine position. We determined prospectively the association of the development of cerebral desaturation and the patient’s position with clinical outcomes of the entire surgery. Results: There was no significant difference between these groups according to demographic characteristics. Right and left rSO2 values of patients in control group decreased at 20 min,40 min and 60 min in the Trendelenburg position, but they increased 10 min after changed to supine position.For Dexmedetomidine group,rSO2 were improved during the Trendelenburg position constantly. The relationship between rSO2 values and cognitive dysfunction was not significant. Conclusion:Dexmedetomidine provides higher rcSO2 values during the Trendelenburg position for laparoscopic hysterectomy. Trial registration: Chinese Clinical Trial Registry. No: ChiCTR1800019174. Prospective registration. Key words: NIRS,rSO2,Trendelenburg position, Dexmedetomidine

Abstract 65: Evaluating the Role of Continuously Monitoring Regional Cerebral Oxygen Saturation in Predicting the Return of Spontaneous Circulation in Cardiac Arrest Patients: Does the Use of an Electrocardiogram Alone Provide Adequate Information During Cardiopulmonary Resuscitation?

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Hitoshi Kano ◽  
Tomoyo Saito ◽  
Toshihisa Matsui ◽  
Akio Endo ◽  
Masaki Nagama ◽  
...  
Keyword(s):  
Cardiac Arrest ◽  
Oxygen Saturation ◽  
Near Infrared ◽  
Tissue Oxygenation ◽  
Oxygenation Index ◽  
Cerebral Oxygen Saturation ◽  
Infrared Light ◽  
Cerebral Oxygen ◽  
Regional Cerebral Oxygen Saturation ◽  
Brain Tissue Oxygenation

During CPR as it is currently administered, treatments are selected from an algorithm derived by monitoring with ECG alone. One of the reasons for this is that no other devices are presently thought to be effective in helping to make treatment determinations. Monitoring of regional cerebral oxygen saturation with near infrared light is non-invasive and provides information on brain tissue oxygenation and hemodynamics. The results of our study suggest that measurements derived from continuously monitoring regional cerebral oxygen saturation during CPR can be considered an effective method of predicting the ROSC in cardiac arrest patients. Methods: In 95 patients with out-of-hospital cardiac arrest, the tissue oxygenation index (TOI) was continuously monitored (NIRO-200NX, Hamamatsu Photonics). We investigated the following parameters with respect to whether or not ROSC was achieved: TOI value at the contact of patients (initial TOI); TOI value just before ROSC (pre-ROSC TOI); and the maximum TOI during CPR (maximum TOI). Results: All the patients monitored received treatment with shocks or drugs and the initial TOI was 35.3±7.3%. For 74 patients who did not achieve ROSC, the maximum TOI was 41.0±7.4%, whereas for 21 patients who did achieve ROSC, the pre-ROSC TOI was 51.3±3.6% and the maximum TOI was 64.3±11.4%. ROSC was not achieved in the patients with maximum TOI below 45%. Conclusion: The pre-ROSC TOI was significantly higher than the maximum TOI in the patients who did not achieve ROSC which suggests the possibility of predicting ROSC by monitoring the increase in TOI. In cases where the TOI remains low, there is a possibility that ROSC should not be expected. In such cases, it may be desirable to attempt to improve the quality of CPR to increase the TOI before delivering shocks or administering drugs.

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