Based on the existing literature, the application of designated, processed EEG-monitors to measure anesthetic depth and the associated clinical implications are explained. EEG-monitors quantify the hypnotic portion of anesthesia, but not the nociceptive properties of anesthetics. Depth of anesthesia monitoring is common practice in many German hospitals and helps to visualize the interindividual variability of anesthetics, especially of propofol.
View Article and Find Full Text PDFBackground: The Revised Cardiac Risk Index (RCRI) and the Geriatric Sensitive Cardiac Risk Index (GSCRI) estimate the risk of postoperative major adverse cardiac events (MACE) regardless of the type of anesthesia and without specifying the oldest old patients. Since spinal anesthesia (SA) is a preferred technique in geriatrics, we aimed to test the external validity of these indices in patients ≥ 80 years old who underwent surgery under SA and tried to identify other potential risk factors for postoperative MACE.
Methods: The performance of both indices to estimate postoperative in-hospital MACE risk was tested through discrimination, calibration, and clinical utility.
BMJ Open
March 2023
Introduction: Previous studies demonstrated that the implementation of the Kidney Disease Improving Global Outcomes (KDIGO) guideline-based bundle, consisting of different supportive measures in patients at high risk for acute kidney injury (AKI), might reduce rate and severity of AKI after surgery. However, the effects of the care bundle in broader population of patients undergoing surgery require confirmation.
Methods And Analysis: The BigpAK-2 trial is an international, randomised, controlled, multicentre trial.
Near Infrared Spectroscopy (NIRS) has become widely accepted to evaluate regional cerebral oxygen saturation (rScO2), potentially acting as a surrogate parameter of reduced cerebral oxygen delivery or increased consumption. Low preoperative rScO2 is associated with increased postoperative complications after cardiac surgery. However, its universal potential in pre-anesthesia risk assessment remains unclear.
View Article and Find Full Text PDFBackground: Severe COVID-19 induced acute respiratory distress syndrome (ARDS) often requires extracorporeal membrane oxygenation (ECMO). Recent German health insurance data revealed low ICU survival rates. Patient characteristics and experience of the ECMO center may determine intensive care unit (ICU) survival.
View Article and Find Full Text PDFImportance: Intraoperative handovers of anesthesia care are common. Handovers might improve care by reducing physician fatigue, but there is also an inherent risk of losing critical information. Large observational analyses report associations between handover of anesthesia care and adverse events, including higher mortality.
View Article and Find Full Text PDFVitally essential red fluids like packed cells and red wine are seriously influenced in quality when stored over prolonged periods. In the case of red cell concentrates, the resulting has particular significance in perioperative medicine. We hypothesized that, in contrast, aging rather improves the properties of in several ways.
View Article and Find Full Text PDFBackground: The aim of this prospective multicenter observational study was to measure the incidence of postoperative pediatric emergence delirium and to investigate the occurrence of early postoperative negative behavior within two weeks after outpatient adenoidectomy in preschool children.
Methods: The study comprised 222 patients (1..
Background: Pediatric emergence delirium is characterized by a disturbance of a child's awareness during the early postoperative period that manifests as disorientation, altered attention and perception. The incidence of emergence delirium varies between 18% and 80% depending on risk factors and how it is measured. Reports from Canada, Germany, Italy, United Kingdom, and France demonstrated a wide range of preventive measures and definitions, indicating that there is a lack of clarity regarding emergence delirium.
View Article and Find Full Text PDFBackground: There is an urgent need to rapidly distinguish COVID-19 from other respiratory conditions, including influenza, at first-presentation. Point-of-care tests not requiring laboratory- support will speed diagnosis and protect health-care staff. We studied the feasibility of using breath-analysis to distinguish these conditions with near-patient gas chromatography-ion mobility spectrometry (GC-IMS).
View Article and Find Full Text PDFWorld J Pediatr Congenit Heart Surg
May 2020
Background: Providing anesthesia for pediatric patients undergoing congenital cardiac surgery is complex and requires profound knowledge and clinical experience. Prospective studies on best anesthetic management are missing, partially due to different standards. The aim of the present study was to survey the current standard practice in anesthetic management in pediatric cardiac surgical centers in Germany.
View Article and Find Full Text PDFIntroduction: General anaesthesia (GA) during mechanical thrombectomy (MT) might lead to an inferior clinical outcome compared to conscious sedation (CS). It was hypothesised that using CS might avoid a critical drop in cerebral perfusion, shorten the time of the intervention and therefore might result in better clinical outcome. In this study, we compared the procedural and clinical results of patients who underwent MT under GA or CS at two tertiary neuro-vascular centres on the basis of a matched-pair analysis.
View Article and Find Full Text PDFIntroduction: Oncological head and neck operations as well as carotid endarterectomy are common surgical procedures. In some occasions, both procedures have occurred in the past, leading to possible diagnostic and therapeutic challenges when follow-up operations seem indicated.
Case Report: We report of a patient presenting with carotid endarterectomy including patch operation 8 years ago and neck dissection due to a squamous cell cancer of the tongue 3 months ago, now showing up with a suspected metastatic tumor of the neck during routine follow-up.
Background: Our objective was to evaluate if changes in on-pump cerebral blood flow, relative to the pre-bypass baseline, are associated with the risk for postoperative delirium (POD) following cardiac surgery.
Methods: In 47 consecutive adult patients, right middle cerebral artery blood flow velocity (MCAV) was assessed using transcranial Doppler sonography. Individual values, measured during cardiopulmonary bypass (CPB), were normalized to the pre-bypass baseline value and termed MCAV.
Anasthesiol Intensivmed Notfallmed Schmerzther
November 2018
The upcoming and ongoing debate on neurotoxicity of anesthetics at a young age put a new spotlight on the emergence delirium of children (paedED). The European Society for Anesthesiology published a consensus guideline on prevention and therapy in 2017 which can be a useful guidance in daily clinical practice. Patient data management systems with their clear documentation concerning pain/therapy of pain and paedED will be valuable tools in order to assess the real incidence of paedED.
View Article and Find Full Text PDFPurpose: In clinical practice, using different opioid analgesics is common during the induction and maintenance of general anesthesia and for postoperative analgesia. However, if the opioid analgesic could be limited to a single drug, we hypothesized that the risk of adverse drug interactions could be reduced, with fewer adverse effects. We examined the use of oxycodone as a single opioid in a well-defined cohort of orthopedic patients undergoing general anesthesia.
View Article and Find Full Text PDFBackground: Postoperative neurological injury still represents a major cause of morbidity after cardiac surgery. Our objective was to compare the limits as well as advantages of routine monitoring tools for the detection of cerebral function and perfusion deficits during cardiopulmonary bypass in a daily clinical setting.
Methods: Adult patients undergoing elective cardiac surgery with use of cardiopulmonary bypass were included.
Background: Anesthesia for pediatric cardiac surgery requires a high level of expert knowledge. There are currently no recommendations and standards for anesthetic management for congenital cardiac surgery in Germany.
Aim: The aim of the present study was to assess the current status of structural and personnel anesthetic standards at pediatric cardiac surgery centers in Germany.
Purpose Of Review: The current review focuses on patients with congenital heart disease (CHD) with regard to recent trends in global demographics, healthcare provision for noncardiac surgery, as well as anesthetic and perioperative care for these patients.
Recent Findings: About 40 years after milestones of surgical innovation in CHD, the number of adults with CHD (ACHD) now surpasses those of children with CHD. This development leads to the fact that even patients with complex CHD managed for noncardiac surgery are not restricted to highly specialized centers.
Introduction: Although pediatric emergence delirium (ED) is common, preventive and therapeutic pharmacological treatment is the matter of an international controversial discussion and evidence on different options is partially vague.
Objective: We therefore examined clinical routine in prevention strategies and postoperative therapy of ED with respect to clinical experience in pediatric anesthesia.
Methods: A web-based survey was developed investigating routine management (prevention and treatment) of ED, facility structure, and patient population.
In case of apnea, arterial partial pressure of oxygen (pO2) decreases, while partial pressure of carbon dioxide (pCO2) increases. To avoid damage to hypoxia sensitive organs such as the brain, compensatory circulatory mechanisms help to maintain an adequate oxygen supply. This is mainly achieved by increased cerebral blood flow.
View Article and Find Full Text PDFBackground: During awake craniotomy, the patient's language centers are identified by neurological testing requiring a fully awake and cooperative patient. Hence, anesthesia aims for an unconscious patient at the beginning and end of surgery but an awake and responsive patient in between. We investigated the plasma (Cplasma) and effect-site (Ceffect-site) propofol concentration as well as the related Bispectral Index (BIS) required for intraoperative return of consciousness and begin of neurological testing.
View Article and Find Full Text PDFAnasthesiol Intensivmed Notfallmed Schmerzther
July 2016
Emergence Delirium in children after general anesthesia is a common and self limitating event. Although it might be seen as being harmless it can cause other serious complications and might leave both parents and other caregivers with a negative impression behind. Although the cause may still not be clear, potential predictors can be named: preschool age, the use of fast acting volatile anesthestics, higher preoperative anxiety levels and postoperative pain.
View Article and Find Full Text PDFBackground: In case of intravascular fluid depletion, large veins react to volume expansion with dilation. Little is known about the reaction of arterial vessels. We herein report on the effect of a standardized fluid bolus on the diameter of the common carotid artery (CCA) and its association with hemodynamic parameters, assessed in 20 mechanically ventilated patients after cardiac surgery.
View Article and Find Full Text PDFPlasmacytoid dendritic cells (pDCs) are a major source of type I interferon (IFN) and are important for host defense by sensing microbial DNA via TLR9. pDCs also play a critical role in the pathogenesis of IFN-driven autoimmune diseases. Yet, this autoimmune reaction is caused by the recognition of self-DNA and has been linked to TLR9-independent pathways.
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