Evaluation of the success of supraclavicular blockade performed under general anesthesia in arthroscopic surgery of the shoulder by using Perfusion Index

Background Ambulatory surgical patients are advised to refrain from driving for 24 h postoperatively. However, currently there is no strong evidence to show that driving skills and alertness have resumed in patients by 24 h after general anesthesia. The purpose of this study was to determine whether impaired driver alertness had been restored to normal by 2 and 24 h after general anesthesia in patients who underwent ambulatory surgery. Methods Twenty patients who underwent left knee arthroscopic surgery were studied. Their driving simulation performance, electroencephalographically verified parameters of sleepiness, subjective assessment of sleepiness, fatigue, alertness, and pain were measured preoperatively and 2 and 24 h postoperatively. The same measurements were performed in a matched control group of 20 healthy individuals. Results Preoperatively, patients had significantly higher attention lapses and lower alertness levels versus normal controls. Significantly impaired driving skills and alertness, including longer reaction time, higher occurrence of attention lapses, and microsleep intrusions, were found 2 h postoperatively versus preoperatively. No significantly differences were found in any driving performance parameters or electroencephalographically verified parameters 24 h postoperatively versus preoperatively. Conclusions Patients showed lower alertness levels and impaired driving skills preoperatively and 2 h postoperatively. Based on driving simulation performance and subjective assessments, patients are safe to drive 24 h after general anesthesia.

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The changes of non-invasive hemoglobin and perfusion index of Pulse CO-Oximetry during induction of general anesthesia

Korean Journal of Anesthesiology ◽

10.4097/kjae.2015.68.4.352 ◽

2015 ◽

Vol 68 (4) ◽

pp. 352 ◽

Cited By ~ 8

Author(s):

Seul Gi Park ◽

Oh Haeng Lee ◽

Yong-Hee Park ◽

Hwa Yong Shin ◽

Hyun Kang ◽

...

Keyword(s):

General Anesthesia ◽

Perfusion Index ◽

Non Invasive

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Perfusion Index to Assess Hemodynamic Changes and Analgesia with Premedication of Fentanyl versus Nalbuphineduring General Anesthesia

Academia Anesthesiologica International ◽

10.21276/aan.2019.4.2.57 ◽

2019 ◽

Vol 4 (2) ◽

pp. 255-259

Author(s):

Kumkum Gupta ◽

◽

Bhawana Rastogi ◽

Prashant K Gupta ◽

Manoranjan K Bansal ◽

...

Keyword(s):

General Anesthesia ◽

Perfusion Index ◽

Hemodynamic Changes

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Effects of the tourniquet deflation on bispectral index during knee arthroscopic surgery under the general anesthesia

Korean Journal of Anesthesiology ◽

10.4097/kjae.2009.56.4.371 ◽

2009 ◽

Vol 56 (4) ◽

pp. 371 ◽

Cited By ~ 1

Author(s):

Jeong Hyun Choi ◽

Joon Kyung Sung ◽

Sung Wook Park ◽

Wha Ja Kang

Keyword(s):

General Anesthesia ◽

Bispectral Index ◽

Arthroscopic Surgery ◽

Tourniquet Deflation

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Correlation between the Perfusion Index and Intraoperative Hypothermia: A Prospective Observational Pilot Study

Medicina ◽

10.3390/medicina57040364 ◽

2021 ◽

Vol 57 (4) ◽

pp. 364

Author(s):

Sangho Lee ◽

Keon-Sik Kim ◽

Sung-Wook Park ◽

Ann-Hee You ◽

Sang-Wook Lee ◽

...

Keyword(s):

Body Temperature ◽

General Anesthesia ◽

Perfusion Index ◽

Peripheral Compartment ◽

Peripheral Perfusion ◽

Future Studies ◽

Intraoperative Hypothermia ◽

Hypothermia Group ◽

Degree Of Redistribution ◽

Body Heat

Background and Objectives: We examined the association between the baseline perfusion index (PI) and changes in intraoperative body temperature during general anesthesia. The PI reflects the peripheral perfusion state. The PI may be associated with changes in body temperature during general anesthesia because the degree of redistribution of body heat from the central to the peripheral compartment varies depending on the peripheral perfusion state. Materials and Methods: Thirty-eight patients who underwent brain surgery were enrolled in this study. The baseline PI and body temperature of the patients were measured on entering the operating room. Body temperature was recorded every 15 min after induction of anesthesia using an esophageal temperature probe. Univariate and multivariate logistic regression analyses were performed to identify the risk factors for intraoperative hypothermia. Results: Eighteen patients (47 %) developed hypothermia intraoperatively. The baseline PI was significantly lower among patients in the hypothermia group (1.8 ± 0.7) than among those in the normothermia group (3.0 ± 1.2) (P < 0.001). The baseline PI and body temperature were independently associated with intraoperative hypothermia (PI: odds ratio [OR], 0.270; 95% confidence interval [CI], 0.105–0.697; P = 0.007, baseline body temperature: OR, 0.061; 95% CI, 0.005–0.743; P = 0.028). Conclusions: This study showed that low baseline PI was the factor most related to the development of intraoperative hypothermia. Future studies should consider the PI as a predictor of intraoperative hypothermia.

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Evaluation of Prediction Effect of Perfusion Index for Supraclavicular Brachial Plexus Block in Children

10.21203/rs.3.rs-494092/v1 ◽

2021 ◽

Author(s):

Jinxu Wang ◽

Lingli Deng ◽

Aijun Xu

Keyword(s):

Brachial Plexus ◽

General Anesthesia ◽

Nerve Block ◽

Brachial Plexus Block ◽

Index Finger ◽

Perfusion Index ◽

Anesthesia Induction ◽

Supraclavicular Brachial Plexus Block ◽

Plexus Block ◽

Little Finger

Abstract Background: Pulse perfusion index (PI) is a reflection of blood perfusion. It has been reported that PI can be used to evaluate the effect of nerve block, but currently it is mostly focused on awake adults. In pediatric general anesthesia, it has been reported that PI can evaluate the effect of sacral block, but there is a lack of relevant research on the effect of brachial plexus blocks (BPB).Methods/Design: This is a mono-center, prospective, single-blinded, randomized controlled trial (RCT). 104 children aged 1 month to 12 years who undergo upper limb surgery will be enrolled in this study. According to anesthesia induction and maintenance medication, they will be divided into propofol group and sevoflurane group. Record the PI values of the index finger and little finger on the blocked and non-blocked sides of supraclavicular brachial plexus block (SCB) in all children. First, analyze the two groups of patients with complete blockage respectively, and observe whether the PI values of the index finger and the little finger have the same changes by comparing the baseline values. Secondly, the cases of failed or partial block will be analyzed to understand the relationship between the PI values of the index and little fingers. Thirdly, a comparative analysis of nerve block cases in the sevoflurane and propofol groups will find that PI in what kind of general anesthesia can better judge the effect of SCB in children. So as to provide a theoretical basis for PI to estimate the effect of SCB under general anesthesia in children.Discussion: After sevoflurane or propofol administration, changes in PI after BPB may exist in different situations at different periods. PI values in the blocked and non-blocked sides may vary with the metabolism of anesthetics. The surgery time is about 1h or so and the effects of nerve block still exist, so the PI value changes on the blocking side and the contralateral side can basically rule out the influence of general anesthetics on the PI value. Trial registration: ClinicalTrials.gov NCT04216823. Registered on 15 July, 2020.

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