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Clinical Management of Perioperative Brain Health

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A special issue of Journal of Clinical Medicine (ISSN 2077-0383). This special issue belongs to the section "Anesthesiology".

Deadline for manuscript submissions: closed (30 September 2021) | Viewed by 21232

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Special Issue Editor

Prof. Dr. Łukasz Krzych

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Guest Editor

Department of Acute Medicine, Medical University of Silesia, Zabrze, Poland
Interests: nutrition; intensive care medicine; perioperative medicine; cardiac anesthesia; hemodynamics; sepsis; fluids
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Special Issue Information

Dear Colleagues,

Perioperative medicine covers a broad spectrum of diagnostic and therapeutic interventions needed to apply safe anaesthesia and perioperative care. Both functional and structural neurologic injury represent a serious risk of a compromised outcome, including increased morbidity and mortality and a decreased health-related quality of life among survivors. In recent years, there has been a growing interest in preventive measures and treatment strategies that could be implemented to reduce insults to the brain. Goal-directed therapy is recommended to all subjects at risk of neurologic complications. However, effective neuroprotection and adequate treatment are still in question.

This Special Issue seeks comprehensive high-quality manuscripts on clinical management of perioperative brain health in patients undergoing cardiac and noncardiac surgery, as well as in the critically ill. We welcome original research papers, systematic reviews, meta-analyses, and thorough reviews on this interesting topic. We hope that this Special Issue will provide up-to-date data that anesthesiologists and intensive care specialists worldwide can use to improve perioperative brain health.

Prof. Dr. Łukasz Krzych
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Journal of Clinical Medicine is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

perioperative medicine and the brain
prevention and treatment of perioperative neurological complications
neurological monitoring
perioperative cognitive disorders
brain injury prevention, assessment, and treatment
anaesthesia and the developing and aging brain
neuroprotection

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Related Special Issue

Clinical Management of Brain Health in Anesthesiology and Intensive Care Medicine in Journal of Clinical Medicine (2 articles)

Published Papers (6 papers)

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Research

Jump to: Review

12 pages, 4776 KB

Open AccessArticle

Cerebral and Systemic Stress Parameters in Correlation with Jugulo-Arterial CO₂ Gap as a Marker of Cerebral Perfusion during Carotid Endarterectomy

by Zoltán Kovács-Ábrahám, Timea Aczél, Gábor Jancsó, Zoltán Horváth-Szalai, Lajos Nagy, Ildikó Tóth, Bálint Nagy, Tihamér Molnár and Péter Szabó

J. Clin. Med. 2021, 10(23), 5479; https://doi.org/10.3390/jcm10235479 - 23 Nov 2021

Cited by 1 | Viewed by 2216

Abstract

Intraoperative stress is common to patients undergoing carotid endarterectomy (CEA); thus, impaired oxygen and metabolic balance may appear. In this study, we aimed to identify new markers of intraoperative cerebral ischemia, with predictive value on postoperative complications during CEA, performed in regional anesthesia. A total of 54 patients with significant carotid stenosis were recruited and submitted to CEA. Jugular and arterial blood samples were taken four times during operation, to measure the jugulo-arterial carbon dioxide partial pressure difference (P(j-a)CO₂), and cortisol, S100B, L-arginine, and lactate levels. A positive correlation was found between preoperative cortisol levels and all S100B concentrations. In addition, they are positively correlated with P(j-a)CO₂ values. Conversely, postoperative cortisol inversely correlates with P(j-a)CO₂ and postoperative S100B values. A negative correlation was observed between maximum systolic and pulse pressures and P(j-a)CO₂ after carotid clamp and before the release of clamp. Our data suggest that preoperative cortisol, S100B, L-arginine reflect patients’ frailty, while these parameters postoperatively are influenced by intraoperative stress and injury. As a novelty, P(j-a)CO₂ might be an emerging indicator of cerebral blood flow during CEA. Full article

(This article belongs to the Special Issue Clinical Management of Perioperative Brain Health)

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8 pages, 478 KB

Open AccessArticle

Association between Intraoperative Blood Pressure Drop and Clinically Significant Hypoperfusion in Abdominal Surgery: A Cohort Study

by Zbigniew Putowski, Szymon Czajka and Łukasz J. Krzych

J. Clin. Med. 2021, 10(21), 5010; https://doi.org/10.3390/jcm10215010 - 28 Oct 2021

Cited by 5 | Viewed by 2546

Abstract

The recent consensus by the Perioperative Quality Initiative (POQI) on intraoperative hypotension (IOH) stated that mean arterial pressure (MAP) below 60–70 mmHg is associated with myocardial infarction (MI), acute kidney injury (AKI), death and also that IOH is a function of not only severity but also of duration. However, most of the data come from large, heterogeneous cohorts of patients who underwent different surgical procedures and types of anaesthesia. We sought to assess how various definitions of IOH can predict clinically significant hypoperfusive outcomes in a homogenous cohort of generally anesthetised patients undergoing abdominal surgery, taking into account thresholds of MAP and their time durations. The data for this study come from a prospective cohort study in which patients who underwent abdominal surgery between 1 October 2018 and 15 July 2019 in the university hospital in Katowice were included in the analysis. We analysed perioperative data to assess how various IOH thresholds can predict hypoperfusive outcomes (defined as myocardial injury, acute kidney injury or stroke). 508 patients were included in the study. The total number of cases of clinically significant hypoperfusion was 38 (7.5%). We found that extending durations of low MAP, i.e., below 55 mmHg, 60 mmHg, 65 mmHg and 70 mmHg, were associated with the development of either AKI, MI or stroke. It was observed that for narrower and lower hypotension thresholds, the time required to induce complications is shorter. Patients who suffered from AKI/MI/Stroke experienced more episodes of any of the IOH definitions applied. Absolute IOH thresholds were superior to the relative definitions. For patients undergoing abdominal surgery, it is vital to prevent the extended durations of intraoperative mean arterial pressure below 70 mmHg. Finally, there appears to be no need to guide intraoperative haemodynamic therapy based on pre-induction values and, consequently, on relative drops of MAP. Full article

(This article belongs to the Special Issue Clinical Management of Perioperative Brain Health)

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9 pages, 630 KB

Open AccessArticle

Comparison of the Effects of Normocapnia and Mild Hypercapnia on the Optic Nerve Sheath Diameter and Regional Cerebral Oxygen Saturation in Patients Undergoing Gynecological Laparoscopy with Total Intravenous Anesthesia

by Chun-Gon Park, Wol-Seon Jung, Hee-Yeon Park, Hye-Won Kim, Hyun-Jeong Kwak and Youn-Yi Jo

J. Clin. Med. 2021, 10(20), 4707; https://doi.org/10.3390/jcm10204707 - 14 Oct 2021

Cited by 6 | Viewed by 3532

Abstract

Cerebral hemodynamics may be altered by hypercapnia during a lung-protective ventilation (LPV), CO₂ pneumoperitoneum, and Trendelenburg position during general anesthesia. The purpose of this study was to compare the effects of normocapnia and mild hypercapnia on the optic nerve sheath diameter (ONSD), regional cerebral oxygen saturation (rSO₂), and intraoperative respiratory mechanics in patients undergoing gynecological laparoscopy under total intravenous anesthesia (TIVA). Sixty patients (aged between 19 and 65 years) scheduled for laparoscopic gynecological surgery in the Trendelenburg position. Patients under propofol/remifentanil total intravenous anesthesia were randomly assigned to either the normocapnia group (target PaCO₂ = 35 mmHg, n = 30) or the hypercapnia group (target PaCO₂ = 50 mmHg, n = 30). The ONSD, rSO₂, and respiratory and hemodynamic parameters were measured at 5 min after anesthetic induction (Tind) in the supine position, and at 10 min and 40 min after pneumoperitoneum (Tpp10 and Tpp40, respectively) in the Trendelenburg position. There was no significant intergroup difference in change over time in the ONSD (p = 0.318). The ONSD increased significantly at Tpp40 when compared to Tind in both normocapnia and hypercapnia groups (p = 0.02 and 0.002, respectively). There was a significant intergroup difference in changes over time in the rSO2 (p < 0.001). The rSO₂ decreased significantly in the normocapnia group (p = 0.01), whereas it increased significantly in the hypercapnia group at Tpp40 compared with Tind (p = 0.002). Alveolar dead space was significantly higher in the normocapnia group than in the hypercapnia group at Tpp40 (p = 0.001). In conclusion, mild hypercapnia during the LPV might not aggravate the increase in the ONSD during CO₂ pneumoperitoneum in the Trendelenburg position and could improve rSO₂ compared to normocapnia in patients undergoing gynecological laparoscopy with TIVA. Full article

(This article belongs to the Special Issue Clinical Management of Perioperative Brain Health)

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14 pages, 904 KB

Open AccessArticle

Elevated Procalcitonin as a Risk Factor for Postoperative Delirium in the Elderly after Cardiac Surgery—A Prospective Observational Study

by Anna Kupiec, Barbara Adamik, Natalia Kozera and Waldemar Gozdzik

J. Clin. Med. 2020, 9(12), 3837; https://doi.org/10.3390/jcm9123837 - 26 Nov 2020

Cited by 9 | Viewed by 2609

Abstract

One of the most common complications after cardiac surgery with cardiopulmonary bypass (CBP) is delirium. The purpose of this study was to prospectively investigate the risk of developing postoperative delirium in a group of elderly patients using a multivariate assessment of preoperative and intraoperative risk factors. A total of 149 elderly patients were included. Thirty patients (20%) developed post-operative delirium. Preoperative procalcitonin (PCT) above the reference range (>0.05 ng/mL) was recorded more often in patients who postoperatively developed delirium than in the non-delirium group (50% vs. 27%, p = 0.019). After surgery, PCT was significantly higher in the delirium than the non-delirium group: ICU admission after surgery: 0.08 ng/mL vs. 0.05 ng/mL p = 0.011), and for consecutive days (day 1: 0.59 ng/mL vs. 0.25 ng/mL, p = 0.003; day 2: 1.21 ng/mL vs. 0.36 ng/mL, p = 0.006; day 3: 0.76 ng/mL vs. 0.34 ng/mL, p = 0.001). Patients with delirium were older (74 vs. 69 years, p = 0.038), more often had impaired daily functioning (47% vs. 28%, p = 0.041), depressive symptoms (40% vs. 17%, p = 0.005), and anemia (43% vs. 19%, p = 0.006). In a multivariable logistic regression model, preoperative procalcitonin (odds ratio (OR) = 3.05), depressive symptoms (OR = 5.02), age (OR = 1.14), impaired daily functioning (OR = 0.76) along with CPB time (OR = 1.04) were significant predictors of postoperative delirium. Full article

(This article belongs to the Special Issue Clinical Management of Perioperative Brain Health)

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Review

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19 pages, 1989 KB

Open AccessReview

Delirium Superimposed on Dementia in Perioperative Period and Intensive Care

by Łukasz J. Krzych, Natalia Rachfalska and Zbigniew Putowski

J. Clin. Med. 2020, 9(10), 3279; https://doi.org/10.3390/jcm9103279 - 13 Oct 2020

Cited by 3 | Viewed by 4841

Abstract

Delirium is a life-threatening condition, the causes of which are still not fully understood. It may develop in patients with pre-existing dementia. Delirium superimposed on dementia (DSD) can go completely unnoticed with routine examination. It may happen in the perioperative period and in the critical care setting, especially in the ageing population. Difficulties in diagnosing and lack of specific pharmacological and non-pharmacological treatment make DSD a seriously growing problem. Patient-oriented, multidirectional preventive measures should be applied to reduce the risk of DSD. For this reason, anesthesiologists and intensive care specialists should be aware of this interesting condition in their everyday clinical practice. Full article

(This article belongs to the Special Issue Clinical Management of Perioperative Brain Health)

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24 pages, 619 KB

Open AccessReview

Investigating Association between Intraoperative Hypotension and Postoperative Neurocognitive Disorders in Non-Cardiac Surgery: A Comprehensive Review

by Łukasz J. Krzych, Michał P. Pluta, Zbigniew Putowski and Marcelina Czok

J. Clin. Med. 2020, 9(10), 3183; https://doi.org/10.3390/jcm9103183 - 30 Sep 2020

Cited by 26 | Viewed by 4547

Abstract

Postoperative delirium (POD) and postoperative cognitive decline (deficit) (POCD) are related to a higher risk of postoperative complications and long-term disability. Pathophysiology of POD and POCD is complex, elusive and multifactorial. Intraoperative hypotension (IOH) constitutes a frequent and vital health hazard in the perioperative period. Unfortunately, there are no international recommendations in terms of diagnostics and treatment of neurocognitive complications which may arise from hypotension-related hypoperfusion. Therefore, we performed a comprehensive review of the literature evaluating the association between IOH and POD/POCD in the non-cardiac setting. We have concluded that available data are quite inconsistent and there is a paucity of high-quality evidence convincing that IOH is a risk factor for POD/POCD development. Considerable heterogeneity between studies is the major limitation to set up reliable recommendations regarding intraoperative blood pressure management to protect the brain against hypotension-related hypoperfusion. Further well-designed and effectively-performed research is needed to elucidate true impact of intraoperative blood pressure variations on postoperative cognitive functioning. Full article

(This article belongs to the Special Issue Clinical Management of Perioperative Brain Health)

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