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Objectives: Sedation is commonly utilized for individuals otherwise unable to receive dental treatment, such as those with disabilities, medically complex conditions, and dentophobics. The aim was to characterize the profiles of patients receiving various types of sedation and assess the corresponding success rates. Method and materials: This was a 5-year records-based retrospective study. Data regarding the indication for sedation, medical history, sedation type, and treatments performed were recorded. Results: In total, 103 patients underwent 389 treatment sessions under sedation; 42.7% of the patients were disabled. The most commonly administered sedation was moderate sedation, (49.4%), followed by deep (36.8%) and inhaled sedation (13.9%). Successful treatment results were achieved in 96.1% of sessions, with no adverse effects noted during recovery. The high success rates were independent of patient age, sex, and sedation type. There was a positive association between the indication for sedation and the type of sedation. The medically complex patients and the dentophobic patients received mainly moderate sedation (85.3% and 58.2%, respectively), whereas the disabled patients received deep sedation (51.2%). In total, 94% of patients were returning (revisiting) patients. A statistically significant association was found between the type of sedation administered and the success rate during the first and last sessions (P< .001). The success rate at the first session may be predictive of the success in subsequent sessions. Conclusion: A significant positive correlation was found between patient characteristics and the chosen sedation type leading to a high success rate across the various sedation modalities. [ABSTRACT FROM AUTHOR]

Pain Medicine, a field that was once considered primarily a specialty of opioid medication management, evolved into a multimodal care model with the goal of limiting reliance on pain medications. Now, we see another revolution-the advancement from percutaneous procedures to minimally invasive surgical procedures. Despite these changes, Pain Medicine fellowships have consistently been recognized as a competitive subspecialty with more applicants than the number of available positions - until now. The most recent pain fellowship match suggests an abrupt change to the popularity of the specialty (with over 61 unmatched positions and over 35 unfilled programs) for applicants expected to matriculate in the year 2024 [1]. Unfilled positions have risen from 5% to 15% in the past three years. Similarly, unfilled programs have risen from 10% to 30% in the past three years. Several reasons for this sudden change in popularity have been proposed, including a lucrative general anesthesiology market, increasing difficulties with insurance coverage and reimbursement for procedures, and a dearth of advanced pain procedures performed at academic medicine programs. The field is at a critical juncture, necessitating ongoing discussions and collaboration among stakeholders to ensure that trainees are attracted to this dynamic field and are ultimately equipped to meet the evolving needs of patients.

The question of what generates conscious experience has mesmerized thinkers since the dawn of humanity, yet its origins remain a mystery. The topic of consciousness has gained traction in recent years, thanks to the development of large language models that now arguably pass the Turing test, an operational test for intelligence. However, intelligence and consciousness are not related in obvious ways, as anyone who suffers from a bad toothache can attest-pain generates intense feelings and absorbs all our conscious awareness, yet nothing particularly intelligent is going on. In the hard sciences, this topic is frequently met with skepticism because, to date, no protocol to measure the content or intensity of conscious experiences in an observer-independent manner has been agreed upon. Here, we present a novel proposal: Conscious experience arises whenever a quantum mechanical superposition forms. Our proposal has several implications: First, it suggests that the structure of the superposition determines the qualia of the experience. Second, quantum entanglement naturally solves the binding problem, ensuring the unity of phenomenal experience. Finally, a moment of agency may coincide with the formation of a superposition state. We outline a research program to experimentally test our conjecture via a sequence of quantum biology experiments. Applying these ideas opens up the possibility of expanding human conscious experience through brain-quantum computer interfaces.

Cardiac catheterization remains the gold standard for the diagnosis and management of pediatric pulmonary hypertension (PH). There is lack of consensus regarding optimal anesthetic and airway regimen. This retrospective study describes the anesthetic/airway experience of our single center cohort of pediatric PH patients undergoing catheterization, in which obtaining hemodynamic data during spontaneous breathing is preferential. A total of 448 catheterizations were performed in 232 patients. Of the 379 cases that began with a natural airway, 274 (72%) completed the procedure without an invasive airway, 90 (24%) received a planned invasive airway, and 15 (4%) required an unplanned invasive airway. Median age was 3.4 years (interquartile range [IQR] 0.7-9.7); the majority were either Nice Classification Group 1 (48%) or Group 3 (42%). Vasoactive medications and cardiopulmonary resuscitation were required in 14 (3.7%) and eight (2.1%) cases, respectively; there was one death. Characteristics associated with use of an invasive airway included age

BackgroundIntraoperative opioid use has a positive relationship with postoperative nausea and vomiting (PONV), and opioid-free anaesthesia (OFA) might reduce PONV. We investigated whether OFA compared with opioid-based anaesthesia would reduce PONV during the first 2 postoperative days among patients undergoing thoracoscopic lung resection.MethodsIn this randomised controlled trial, 120 adult patients were randomly assigned (1:1, stratified by sex) to receive either OFA with esketamine, dexmedetomidine, and sevoflurane, or opioid-based anaesthesia with sufentanil and sevoflurane. A surgical pleth index (SPI) of 20-50 was applied for intraoperative analgesia provision. All subjects received PONV prophylaxis (dexamethasone and ondansetron) and multimodal analgesia (flurbiprofen axetil, ropivacaine wound infiltration, and patient-controlled sufentanil). The primary outcome was the occurrence of PONV during the first 48 h after surgery.ResultsThe median age was 53 yr and 66.7% were female. Compared with opioid-based anaesthesia, OFA significantly reduced the incidence of PONV (15% vs 31.7%; odds ratio [OR]=0.38, 95% confidence interval [CI], 0.16-0.91; number needed to treat, 6; P=0.031). Secondary and safety outcomes were comparable between groups, except that OFA led to a lower rate of vomiting (OR=0.23, 95% CI, 0.08-0.77) and a longer length of PACU stay (median difference=15.5 min, 95% CI, 10-20 min). The effects of OFA on PONV did not differ in the prespecified subgroups of sex, smoking status, and PONV risk scores.ConclusionsIn the context of PONV prophylaxis and multimodal analgesia, SPI-guided opioid-free anaesthesia halved the incidence of PONV after thoracoscopic lung resection, although it was associated with a longer stay in the PACU.Clinical trial registrationChinese Clinical Trial Registry (ChiCTR2200059710).

Consciousness is thought to be regulated by bidirectional information transfer between the cortex and thalamus, but the nature of this bidirectional communication - and its possible disruption in unconsciousness - remains poorly understood. Here, we present two main findings elucidating mechanisms of corticothalamic information transfer during conscious states. First, we identify a highly preserved spectral channel of cortical-thalamic communication that is present during conscious states, but which is diminished during the loss of consciousness and enhanced during psychedelic states. Specifically, we show that in humans, mice, and rats, information sent from either the cortex or thalamus via δ/θ/α waves (∼1-13 Hz) is consistently encoded by the other brain region by high γ waves (52-104 Hz); moreover, unconsciousness induced by propofol anesthesia or generalized spike-and-wave seizures diminishes this cross-frequency communication, whereas the psychedelic 5-methoxy-N,N-dimethyltryptamine (5-MeO-DMT) enhances this low-to-high frequency interregional communication. Second, we leverage numerical simulations and neural electrophysiology recordings from the thalamus and cortex of human patients, rats, and mice to show that these changes in cross-frequency cortical-thalamic information transfer may be mediated by excursions of low-frequency thalamocortical electrodynamics toward/away from edge-of-chaos criticality, or the phase transition from stability to chaos. Overall, our findings link thalamic-cortical communication to consciousness, and further offer a novel, mathematically well-defined framework to explain the disruption to thalamic-cortical information transfer during unconscious states.

Purpose Methods Results Conclusion To report the results of strabismus surgery in a series of patients with Graves' orbitopathy (GO), using topical anaesthesia with intraoperative suture adjustment.All first‐time strabismus surgeries in patients with GO in our department during the years 2014–2021 (n = 45) were assessed retrospectively. Among these, 31% came from outside our health region due to increased complexity of the strabismus condition. Orbital decompression surgery had been carried out in 58% of the patients prior to strabismus surgery. Patients with less than 2 months of follow‐up were excluded from the study. Median follow‐up time was 22 months.Among the total patient material, 37 (82%) could be operated with topical anaesthesia with intraoperative suture adjustment. There were no cases with triggering of the oculo‐cardiac reflex during the procedure. Among the 36 patients operated with topical anaesthesia and follow‐up time ≥2 months, 11 (31%) needed further surgery. Late overcorrection after recession of the inferior rectus was seen in 19%. At the last control examination, 32 (89%) were diplopia‐free in primary and down‐gaze position, either with or without weak prisms.Strabismus surgery in topical anaesthesia with intraoperative suture adjustment appears to be a suitable and safe procedure in most patients with GO, including difficult and complex cases. The patients should be informed about the possibility of additional surgery and/or post‐operative need for prism glasses. [ABSTRACT FROM AUTHOR]

Background: Postoperative pain management remains a significant challenge for patients undergoing posterior urethroplasty (PU). In a previous study, we proposed a novel technique of combined pudendal nerve (PN) and spermatic cord (SC) block to manage pain after PU. The present trial was conducted to test the hypothesis that this technique is effective for pain control after PU and provides longer-lasting analgesia than caudal epidural block (CB). Methods: Sixty patients undergoing PU were randomized into two groups: Group NB received combined PN and SC block, and Group CB received CB. General anesthesia with a laryngeal mask was performed. The primary outcome was the postoperative analgesic duration, and the secondary outcomes included the Numeric Rating Scale (NRS) scores for pain and the number of patients with different motor scores of the lower limb at 3, 6, 12, and 24 h postoperatively. Results: Two patients in Group CB were withdrawn due to block failure. The postoperative analgesic duration was statistically longer in Group NB compared with Group CB (mean difference [95% confidence interval], 115.78 min [17.80, 213.75]; P = 0.021). The NRS scores for pain at 12 and 24 h after surgery were statistically lower in Group NB compared with Group CB. Group NB had statistically more patients with motor score 0 at 3 h postoperatively than Group CB. Conclusions: PN combined with SC block is an effective technique for postoperative analgesia in PU. This technique can achieve a longer duration of analgesia and lower pain scores, especially 12 h after surgery, than a CB. Trial registration: This study was registered in the Chinese Clinical Trial Register (registration no. ChiCTR2100042971, registration date on 2/2/2021). [ABSTRACT FROM AUTHOR]

Aromatic l‐amino acid decarboxylase (AADC) deficiency is a rare autosomal recessive disorder that results in a lack of the monoamine neurotransmitters dopamine, serotonin, norepinephrine, and epinephrine. Patients present with a wide spectrum of symptoms, including motor and autonomic dysfunction, hypotonia, and developmental delay, often before the age of one. Until recently, treatment options were limited to symptom control, but the recent approval of the first gene therapy for AADC deficiency in Europe and the UK has provided an alternative to treating symptoms for this disease. Eladocagene exuparvovec is a one‐time gene therapy, administered bilaterally to the putamen by magnetic resonance imaging‐guided stereotactic neurosurgery. While administration of the gene therapy itself is minimally invasive, the anesthetic management of patients with AADC deficiency is challenging due to the absence of sympathetic regulation secondary to the lack of adrenergic neurotransmitters. Optimal anesthetic management requires an understanding of the complex and heterogeneous nature of the disease. Hemodynamic instability, temperature dysregulation, and hypoglycemia are of primary concern, but there are also challenges regarding intravenous access and airway management. A thorough preoperative assessment is essential and should be guided by the patient's history. Advanced planning is necessary regarding the timing of the procedure schedule and operative plan; meticulous preparation, simulation for the operating room, as well as communication with all perioperative staff members, are crucial. Intraoperatively, utmost care must be taken to protect the skin, maintain body temperature, and to prepare for inotropic and/or glycemic support as needed. Postoperative intensive care management is necessary for consideration of postoperative extubation and provision of supportive care. With careful planning, preparation, and vigilance, patients with AADC deficiency can safely undergo anesthesia. [ABSTRACT FROM AUTHOR]

Elderly individuals display metabolite alterations that may contribute to development of cognitive impairment following surgery and anesthesia. However, these relationships remain largely unexplored. The study aims to assess the S-methyl-5-thioadenosine (MTA) is associated with postoperative delayed neurocognitive recovery (dNCR). We assess altered metabolites following anesthesia/surgery in both mice and patients to identify blood biomarkers of dNCR. Preoperative and postoperative plasma metabolites are determined by widely targeted metabolomics. The brains of mice with anesthesia/surgery show decreased MTA and activated MTA phosphorylase. Mice also show that preoperative administration of MTA can prevent inflammation and cognitive decline. In clinical patients, we detect lower preoperative serum MTA levels in those who developed dNCR. Both low preoperative and postoperative blood MTA levels are associated with increased risk of postoperative dNCR. These results suggest that anesthesia/surgery induces cognitive decline through methionine synthesis pathways and that MTA could be a perioperative predictor of dNCR. Low blood S-methyl-5-thioadenosine (MTA) levels are associated with postoperative delayed neurocognitive recovery (dNCR) and thus could be used as a potential perioperative predictor. [ABSTRACT FROM AUTHOR]

Purpose: This paper discusses an advanced version of our audiovisual-assisted therapeutic ambience in radiotherapy (AVATAR) radiolucent display systems designed for pediatric radiotherapy, enabling anesthesia-free treatments, video communication, and biofeedback. The scope of the AVATAR system is expanded here in two major ways: (i) through alternative mounting systems to accommodate a broader range of radiotherapy machines (specifically to fit robotic-arm and toroidal geometry photon radiotherapy and proton radiotherapy systems) and (ii) through additional hardware to provide videocalling, optimized audio for clear communication, and combined video inputs for biofeedback, translation, and other advanced functionalities. Methods and materials: Because robustness requires strong parts and radiotransparency requires thin, light parts, three-dimensional printing was used to rapidly prototype hollow structures and to iteratively improve robustness. Two system designs were made: one that mounts superior and another that mounts inferior to the patient's head. Radiation dose measurements and calculations were conducted to assess dose perturbations at surface and depth due to the screen. Results: For 6-MV volumetric modulated arc therapy (VMAT) plans, with and without the screen, the mean and maximum dose differences inside the planning target volume were 0.2% and 2.6% of the 200 cGy prescription, respectively. For a single static beam through the screen, the maximum measured excess surface dose was 13.4 ± 0.5%, and the largest measured dose attenuation at 5-cm waterequivalent depth was 2.1 ± 0.2%. These percentages are relative to the dose without the screen at those locations. Conclusions: The radiolucent screen systems provided here are shown to give minimal dosimetric effects on megavoltage VMAT photon treatments. For static beams, however, surface dose effects should be considered when these beams pass through the thickest components of the screen. Design files are also provided. [ABSTRACT FROM AUTHOR]

Accurate monitoring of anesthesia status is very important in surgery, as it can guide anesthesiologists, reduce drug usage, and reduce postoperative adverse effects. However, due to the complex interactions between anesthetic drugs and the central nervous system, there is no perfect monitoring method. In recent years, the development of artificial intelligence technology has offered the possibility of using machine learning algorithms to achieve more accurate monitoring of anesthesia depth. In this paper, four levels of anesthesia states were classified and multifaceted feature values were extracted from Electroencephalogram (EEG) signals, a convolutional neural network-based KRDGB-CNN model was constructed, which was based on K-nearest neighbor (KNN), Random Forest (RF), Decision Tree (DT), Gaussian Naive Baye (GNB), and Back propagation Neural Network (BP), and fused by Convolutional Neural Network (CNN) algorithm for decision layers. By evaluating the model performance on the collected data, the results show that the model outperforms existing algorithms in terms of classification accuracy and specificity, and can effectively improve the robustness and accuracy of the algorithm. [ABSTRACT FROM AUTHOR]

Anesthesia modifies sensory representations in the thalamo-cortical circuit but is considered to have a milder impact on peripheral sensory processing. Here, tracking the same neurons across wakefulness and isoflurane or ketamine medetomidine anesthesia, we show that the amplitude and sign of single neuron responses to sounds are massively modified by anesthesia in the cochlear nucleus of the brainstem, the first relay of the auditory system. The reorganization of activity is so profound that decoding of sound representation under anesthesia is not possible based on awake activity. However, population-level parameters, such as average tuning strength and population decoding accuracy, are weakly affected by anesthesia, explaining why its effect has previously gone unnoticed when comparing independently sampled neurons. Together, our results indicate that the functional organization of the auditory brainstem largely depends on the network state and is ill-defined under anesthesia. This demonstrates a remarkable sensitivity of an early sensory stage to anesthesia, which is bound to disrupt downstream processing. [ABSTRACT FROM AUTHOR]

The brain is a complex non-equilibrium system capable of expressing many different dynamics as well as the transitions between them. We hypothesized that the level of non-equilibrium can serve as a signature of a given brain state, which was quantified using the arrow of time (the level of irreversibility). Using this thermodynamic framework, the irreversibility of emergent cortical activity was quantified from local field potential recordings in male Lister-hooded rats at different anesthesia levels and during the sleep-wake cycle. This measure was carried out on five distinct brain states: slow-wave sleep, awake, deep anesthesia–slow waves, light anesthesia–slow waves, and microarousals. Low levels of irreversibility were associated with synchronous activity found both in deep anesthesia and slow-wave sleep states, suggesting that slow waves were the state closest to the thermodynamic equilibrium (maximum symmetry), thus requiring minimum energy. Higher levels of irreversibility were found when brain dynamics became more asynchronous, for example, in wakefulness. These changes were also reflected in the hierarchy of cortical dynamics across different cortical areas. The neural dynamics associated with different brain states were characterized by different degrees of irreversibility and hierarchy, also acting as markers of brain state transitions. This could open new routes to monitoring, controlling, and even changing brain states in health and disease. [ABSTRACT FROM AUTHOR]

Background: Conjoined twins are a rare congenital anomaly with various types, depending on the connection site. Managing these cases requires a structured approach leading to separation surgery. This report provides a detailed description of the anesthetic strategies and challenges of pygopagous conjoined female twins who underwent 2 surgeries before separation at 17 weeks of age. Case Report: The female twins were conjoined at the sacral level (S4), with fused thecal sacs at L5 and cord tethering, with the conus terminating below L3 in both patients. They had separate rectal ampullae that fused into a single anal canal in the midline in a Y formation. The babies underwent 2 surgeries prior to separation: meningocele repair for twin B and anal canal dilation and sphincter mapping for both twins, followed by a ventriculoperitoneal shunt insertion for twin B. The separation surgery included dividing the bony vertebral fusions and dural sacs, untethering the spinal cords and nerves, and correctly allocating the intrapelvic muscles, guided by sphincter muscle mapping. Anesthesia was managed by 2 distinct teams each time, with duplicated equipment and color-coded medications to prevent errors. Due to the critical condition of twin B, general anesthesia was administered to her first. The report also addresses the challenges faced during the 3 surgical procedures. Conclusions: Anesthetic management for pygopagus twins presents complex challenges. Despite limited experience with similar cases, successful management was achieved through planning, effective communication, and rehearsal of unfamiliar setups. Attention to detail and involvement of highly experienced teams were crucial to the success of the procedures. [ABSTRACT FROM AUTHOR]

Introduction: The impact of medical student involvement in anesthetic procedures on operating room (OR) efficiency and patient outcomes remains understudied, despite its importance in medical education. This study aimed to quantify the effects of fifth-year medical students' participation in anesthetic procedures on key time metrics, perceived difficulty, procedural success, and postoperative complications and to compare these effects with those of anesthetic residents and student nurse anesthetists. Methods: This prospective observational study was conducted between April and July 2022 in the OR of a tertiary university hospital in southern Thailand. We analyzed 111 elective obstetric-gynecologic and general surgery procedures under subarachnoid block or general anesthesia, equally distributed among three groups: fifth-year medical students, anesthetic residents, and student nurse anesthetists. Key time intervals, perceived difficulty, number of attempts, success rates, and postoperative complications were recorded and compared across groups. Results: Fifth-year medical students exhibited significantly prolonged anesthesia release time, anesthesia-controlled time, anesthetic preparation time, and anesthetic procedure time compared to anesthetic residents and student nurse anesthetists (p<0.05). Medical students perceived case inductions as more challenging than the other groups did (p< 0.001), but procedural success rates were comparable across groups. Immediate postoperative airway complications were more frequent among medical students than anesthetic residents, but no significant differences were found in intraoperative or 24-h postoperative complications. Discussion: While the involvement of medical students in anesthetic procedures extends specific time metrics, it does not significantly impact overall case duration or major patient outcomes. These findings support the continued integration of medical student training in the OR, with appropriate supervision to manage the slightly increased risk of immediate postoperative complications. Further research is needed to optimize the balance between educational opportunities and OR efficiency. Clinical trial registration: https://www.thaiclinicaltrials.org/show/ TCTR20220418006, identifier TCTR20220418006. [ABSTRACT FROM AUTHOR]

Consciousness, defined as being aware of and responsive to one's surroundings, is characteristic of normal waking life and typically is lost during sleep and general anaesthesia. The traditional view of consciousness as a global brain state has evolved toward a more sophisticated interplay between global and local states, with the presence of local sleep in the awake brain and local wakefulness in the sleeping brain. However, this interplay is not clear for general anaesthesia, where loss of consciousness was recently suggested to be associated with a global state of brain‐wide synchrony that selectively involves layer 5 cortical pyramidal neurons across sensory, motor and associative areas. According to this global view, local wakefulness of layer 5 cortex should be incompatible with deep anaesthesia, a hypothesis that deserves to be scrutinised with causal manipulations. Here, we show that unilateral chemogenetic activation of layer 5 pyramidal neurons in the sensorimotor cortex of isoflurane‐anaesthetised mice induces a local state transition from slow‐wave activity to tonic firing in the transfected hemisphere. This wakefulness‐like activity dramatically disrupts layer 5 interhemispheric synchrony with mirror‐image locations in the contralateral hemisphere, but does not reduce the level of unconsciousness under deep anaesthesia, nor in the transitions to/from anaesthesia. Global layer 5 synchrony may thus be a sufficient condition for anaesthesia‐induced unconsciousness, but is not a necessary one, at least under isoflurane anaesthesia. Local wakefulness‐like activity of layer 5 cortex can be induced and maintained under deep anaesthesia, encouraging further investigation into the local vs. global aspects of anaesthesia‐induced unconsciousness. Key points: The neural correlates of consciousness have evolved from global brain states to a nuanced interplay between global and local states, evident in terms of local sleep in awake brains and local wakefulness in sleeping brains.The concept of local wakefulness remains unclear for general anaesthesia, where the loss of consciousness has been recently suggested to involve brain‐wide synchrony of layer 5 cortical neurons.We found that local wakefulness‐like activity of layer 5 cortical can be chemogenetically induced in anaesthetised mice without affecting the depth of anaesthesia or the transitions to and from unconsciousness.Global layer 5 synchrony may thus be a sufficient but not necessary feature for the unconsciousness induced by general anaesthesia.Local wakefulness‐like activity of layer 5 neurons is compatible with general anaesthesia, thus promoting further investigation into the local vs. global aspects of anaesthesia‐induced unconsciousness. [ABSTRACT FROM AUTHOR]

Background: The purpose of this research was to evaluate the efficacy of Narcotrend (NT) monitoring on cognitive dysfunction in patients undergoing anesthesia blockade for gastrointestinal tumors and its effect on cerebral oxygen metabolism and inflammatory response. Methods: Patients preparing to undergo resection of gastrointestinal tumor resection were included and randomly divided into a control group (depth of anesthesia assessed by physician experience) and a research group (depth of anesthesia monitored by NT). HR and MAP were monitored at the preoperatively (T0), 12 h postoperative (T1), 24 h postoperative (T2), and 48 h postoperative (T3) stages. MMSE score was recorded to assess changes in cognitive function. Intracerebral oxygenation indicators (CjvO2, CERO2, and rSO2) were assessed by a blood gas analyzer. ELISA assay was conducted to explore the serum inflammatory indexes (CRP, IL-1β, and TNF-α) and neurological function indicators (NSE and MBP). Results: MAP was higher in the research group than in the control group at T1 and T2 (P < 0.05). MMSE scores at T1, T2, and T3 stages were higher in the research group than in the control (P < 0.05). The incidence of POCD was also lower in the research group compared with the control (P < 0.05). CjvO2, CERO2, and rSO2 were significantly higher (P < 0.05) and were positively correlated with the MMSE scores. Postoperative serum inflammatory indexes were significantly elevated in both groups, but more significantly in the control group (P < 0.05). Both neurological function indicators were usually reduced after surgery, but the reduction was more significant in the research group (P < 0.05). Conclusion: NT monitoring of anesthetic depth has a less physical impact on patients with gastrointestinal tumor anesthetic block, reduces the degree of postoperative POCD, and has significant clinical value. [ABSTRACT FROM AUTHOR]

Background: Consumer facing wearable devices capture significant amounts of biometric data. The primary aim of this study is to determine the accuracy of consumer-facing wearable technology for continuous monitoring compared to standard anesthesia monitoring during endoscopic procedures. Secondary aims were to assess patient and provider perceptions of these devices in clinical settings. Methods: Patients undergoing endoscopy with anesthesia support from June 2021 to June 2022 were provided a smartwatch (Apple Watch Series 7, Apple Inc., Cupertino, CA) and accessories including continuous ECG monitor and pulse oximeter (Qardio Inc., San Francisco, CA) for the duration of their procedure. Vital sign data from the wearable devices was compared to inroom anesthesia monitors. Concordance with anesthesia monitoring was assessed with interclass correlation coefficients (ICC). Surveys were then distributed to patients and clinicians to assess patient and provider preferences regarding the use of the wearable devices during procedures. Results: 292 unique procedures were enrolled with a median anesthesia duration of 34 min (IQR 25--47). High fidelity readings were successfully recorded with wearable devices for heart rate in 279 (95.5%) cases, oxygen in 203 (69.5%), and respiratory rate in 154 (52.7%). ICCs for watch and accessories were 0.54 (95% CI 0.46--0.62) for tachycardia, 0.03 (95% CI 0--0.14) for bradycardia, and 0.33 (0.22--0.43) for oxygen desaturation. Patients generally felt the devices were more accurate (56.3% vs. 20.0% agree, p < 0.001) and more permissible (53.9% vs. 33.3% agree, p < 0.001) to wear during a procedure than providers. Conclusion: Smartwatches perform poorly for continuous data collection compared to gold standard anesthesia monitoring. Refinement in software development is required if these devices are to be used for continuous, intensive vital sign monitoring. [ABSTRACT FROM AUTHOR]

Postoperative cognitive dysfunction (POCD) poses a significant threat to patients undergoing anesthesia and surgery, particularly elderly patients. It is characterized by diminished cognitive functions post surgery, such as impaired memory and decreased concentration. The potential risk factors for POCD include age, surgical trauma, anesthetic type, and overall health condition; however, the precise mechanisms underlying POCD remain elusive. Recent studies suggest that neuroinflammation might be a primary pathogenic factor. NOD-, LRR- and pyrin domain-containing protein 3 (NLRP3) inflammasomes are implicated in exacerbating POCD by promoting the release of inflammatory factors and proteins that initiate pyroptosis, further influencing the disease process. The regulation of NLRP3 inflammasome activity, including its activation and degradation, is tightly controlled through multiple pathways and mechanisms. In addition, autophagy, a protective mechanism, regulates the NLRP3 inflammasome to control the progression of POCD. This review reviews recent findings on the role of the NLRP3 inflammasome in POCD pathogenesis and discusses therapeutic strategies aimed at reducing NLRP3 sources, inhibiting cellular pyroptosis, and enhancing autophagy. [ABSTRACT FROM AUTHOR]

Background: Pulse oximetry is a standart of anesthesia for perioperative monitoring. Due to the principles of Hb oxygen dissociation curve, peripheral oxygen saturation has an approximate sensitivity and specificity of 90% for the detection of hypoxemia. Objectives: The primary outcome of the study was to evaluate ORiⓇ as an early parameter to determine hypoxia in morbidly obese patients. The secondary outcome was to compare the effectiveness of ORiⓇ with SpO2 in non-obese patients. Design: Prospective, observational study. Setting: Department of elective operating room at tertiary hospital. Patients and methods: Observational study included written informed consent from 51 patients with 19 < BMI < 25 kg/m2 and 51 patients with BMI > 40 kg/m2 undergoing an elective surgery requiring tracheal intubation. In addition to standard monitors, an ORi sensor was placed and baseline values were recorded. The patients were preoxygenated until end tidal expiratory oxygen concentration is reached to 90%. After anesthesia induction and tracheal intubation, the breathing circuit was not connected tracheal tube until the SpO2 decreased to 95%. Shapiro-Wilk, Pearson Chi-square, t-test, and Mann Whitney U test were used for the study. Main outcome measures: Times of tolerable apnea, ORiⓇ and SpO2 values at the end of preoxygenation, beginning of intubation, beginning of the ORi alarm, when SpO2 reached 95%, and when ORi reaches a plateau. Sample size: 102 patients. Results: The alert period: time to reach ORiⓇ from 0.24 to a value of 95% SpO2 was observed as 32 s in morbidly obese patients and 94 s in patients with a normal body mass index. The SpO2 alert period was determined as time difference between 97% and 95% SpO2. The data were recorded as 15 s and 36 s, respectively. It was observed that tolerable apnea, ORiⓇ, SpO2 and added alert times were longer in patients with normal BMI compared to morbidly obese patients. Conclusions: As a result, ORiⓇ can provide an early warning to prevent unexpected hypoxia before saturation begins to decrease in morbidly obese patients. Limitations: Inability to perform arterial blood gas sampling in the time periods when we looked at the parameters to determine the relationship between ORiⓇ and PaO2. Clinical trials. gov identifier: NCT05480748 registered 2022-07-29. [ABSTRACT FROM AUTHOR]

Objective: Given the lack of global consensus on anesthesia selection for peritoneal dialysis catheter (PDC) placement via open surgery, this study investigates the safety and efficacy of combining local infiltration anesthesia (LIA) with monitored anesthesia care (MAC) in patients with end-stage renal disease (ESRD). Methods: This retrospective analysis of ESRD patients who underwent open surgical placement of PDC in the Department of Nephrology, the First Affiliated Hospital of the Army Medical University from 1 August 2020 to 31 May 2022. Patients were categorized into two groups based on anesthesia method: LIA group and LIA + MA group. MA was defined as preoperative sedation (0.2–0.7 µg/kg/h) with dexmedetomidine injection (Huidrican trade name, DEX), and intraoperative analgesia with dexrazoxane injection (Garonin trade name, DEZ) as appropriate according to the patients' pain scores. We compared the general clinical data of the two groups of patients, the changes in blood pressure and heart rate during the whole operation, the intraoperative and postoperative pain, the total duration of the operation and the immediate postoperative complications. Results: The study included 123 patients (59 in the LIA + MAC group and 64 in the LIA group). The LIA + MA group exhibited lower pain scores measured by Visual Analogue Scale(VAS) during surgery (skin incision, subcutaneous adipose tissue dissection, anterior fascia, muscle traction, posterior fascia, peritoneum, and catheterization) compared to the LIA group(p<0.05). In terms of surgical incisions, to intraoperative pain scores (VRS), the LIA + MA group showed higher score level I and lower score level II compared to the LIA group (p = 0.002, 0.004, respectively). The LIA + MA group experienced lower postoperative resting pain (NRS) and VAS than the LIA group (p = 0.001,0.003, respectively). The surgical duration for the LIA + MA group was shorter than that of the LIA group (p<0.001). Preoperative systolic and diastolic blood pressures (SBP and DBP) were higher in the LIA + MA group compared to the LIA group (p<0.001,<0.001, respectively). Postoperative heart rate and DBP were lower in the LIA + MA group (p<0.001, 0.004, respectively). The LIA + MA group exhibited greater changes in heart rate, SBP, and DBP during and after surgery compared to the LIA group (p = 0.009, <0.001,<0.001, respectively). In terms of immediate postoperative complications, the proportion of patients requiring analgesics within 24 h post-surgery was significantly lower in the LIA + MA group (p = 0.031). Conclusion: Open surgery for PDC placement under LIA + MAC is both safe and effective. The key points: There is no global consensus on the preferred anesthesia method for PDC placement. DEX combined with analgesics may yield synergistic effects and serve as a backup rescue analgesic. PDC placement under LIA + MA is safety and efficacy. [ABSTRACT FROM AUTHOR]

Background: In addition to their classic genomic effects, glucocorticoids also manifest rapid non genomic effects. We speculate that dexamethasone has the potential prompt onset of analgesic effects. The objective of this study is to investigate the influence of a single preoperative dose of dexamethasone on the half maximal effective concentration (EC50) of remifentanil when combined with dexmedetomidine for pain relief during pancreatic extracorporeal shockwave lithotripsy (P-ESWL). Methods: A total of 60 patients undergoing P-ESWL were enrolled and randomized at 1:1 ratio into the dexamethasone (DXM) group and the placebo group. Before anesthesia induction, patients in DXM group received an intravenous injection of 8 mg dexamethasone, while subjects in placebo group received an equal dose of physiological saline. Monitored anesthesia care (MAC) was performed based on remifentanil in combination with dexmedetomidine. Remifentanil was administered by TCI with an initial target concentration of 2.5 µg/mL for both groups. A positive response was defined as that VAS score > 3 by the patient at any time during the procedure. Subsequent target concentrations were adjusted by Dixon up-down sequential method, where dose modifications were performed by 0.3 ng/mL intervals, based on the response of the previous patient. The EC50 of remifentanil for pain relief during P-ESWL treatment was calculated using Dixon's up-and-down method. Hemodynamic variables, oxygen saturation and adverse events were also recorded. Results: Dixon up-and-down method revealed that the EC50 of remifentanil was significantly higher in placebo group (2.65 ± 0.28 ng/mL) than in DXM group (2.02 ± 0.23 ng/ml) (P < 0.001). Hemodynamic parameter exhibited a significant decrease in mean arterial pressure (MAP) and heart rate (HR) before and after induction in placebo group; however, data of the two groups were comparable (P>0.05). Less adverse events occurred in DXM group, including the incidence of postoperative nausea and vomiting (PONV) and analgesia requirement with in the first 24 h following the procedure at ward. Conclusion: Dexamethasone exerted analgesic effects with a rapid onset, and patients received dexamethasone 8 mg preoperative had a lower required EC50 of remifentanil during P-ESWL. It is also associated with reduced PONV in addition to reduced postoperative analgesic consumption in the first postoperative 24 h. Trial registration: Registered in the Chinese Clinical Trial Registry (ChiCTR2300078171) on 30/11/2023. [ABSTRACT FROM AUTHOR]

Purpose: Holmium laser enucleation of the prostate (HoLEP) and bipolar transurethral enucleation of the prostate (B-TUEP) are safe and effective treatment options for benign prostatic hyperplasia (BPH). Spinal anesthesia (SA) is widely used for endoscopic enucleation of the prostate (EEP) in place of general anesthesia (GA). We aimed to assess the impact of GA vs. SA on blood loss, postoperative course and functional outcomes after HoLEP and B-TUEP. Methods: After propensity score matching, we analyzed data from 148 patients treated with EEP in our centre for symptomatic BPH. We recorded patient's characteristics, procedural data, type of anesthesia (SA vs. GA). Postoperatively we evaluated hemoglobin drop, catheterization time (CT), and length of hospital stay (LOS). Functional outcomes were evaluated with the International Prostate Symptoms Score (IPSS) at baseline and 3 months after surgery. Descriptive statistics and linear regression models tested the association between anesthesia type and EEP outcomes. Results: After matching groups were comparable in terms of pre- and intra-operative variables. Of all, 111 (75%) patients were treated under SA. Haemoglobin drop was lower in GA compared to SA group (1 vs. 1.4 g/dL, p < 0.01). CT was shorter in the GA group (1 vs. 2 days, p = 0.01). Postoperative IPSS score was lower in GA group (4 vs. 8, p = 0.04). Multivariable linear regression models revealed that prostate volume (p = 0.01) and SA vs. GA (p = 0.01) were associated with higher haemoglobin drop, after accounting for age and use of anticoagulants/antiplatelets. Similarly, SA vs. GA (p = 0.02) and postoperative complications occurrence (p < 0.001) were associated with a longer LOS, after accounting for age, prostate volume and use of anticoagulants/antiplatelets. Conclusion: EEP can be safely performed under both GA and SA. GA offers better outcomes in terms of perioperative bleeding and 3-month functional outcomes. [ABSTRACT FROM AUTHOR]

Objective: To compare the efficacy of intranasal (IN) and intramuscular (IM) administrations of azaperone (3 mg kg-1), midazolam (0. 3 mg kg-1), and ketamine (7 mg kg-1) combination (AMK) in pigs. Study design: Randomized clinical trial. Animals: sixteen adult male pigs, immunocastrated, of mixed lineage. Methods: In phase I, these animals were randomly assigned to intranasal (GIN, n = 8) and intramuscular (GIM, n = 8) groups for arterial blood sample collection at 10, 20, 30, 45, 60, and 90 min after AMK administrations for gas and electrolyte analysis. In phase II, performed 1 week after phase I, the 16 pigs were allocated to both groups (GIM, n = 16/GIN, n = 16) and submitted to the same chemical restraint (CR) protocol, with a 96-h interval between administrations. Behavioral parameters (degree of CR, muscle relaxation, loss of postural reflex, and sound stimulus response) and vital parameters (pulse rate, respiratory rate, oxygen saturation, and rectal temperature) were evaluated after recumbency (Trec) and at 5, 15, 30, 45, 60, and 90 min after administrations. In addition, the latency period and duration of CR were determined. Results: Latency to recumbency and duration of CR in GIN were shorter. CR scores did not vary between groups. Muscle relaxation was more intense in GIN at Trec. An initial tachycardia was observed, followed by a reduction in heart rate from T5 to T90 in both treatments (p < 0.05). The respiratory rate was higher at T45, T60, and T90 in GIN compared to baseline. Rectal temperature reduced in GIM from T45 onwards. PaCOt2 elevated at T90 in the GIM (p < 0.05) and there was an incidence of mild hypoxemia in 47% of the animals in the GIM. Conclusions and clinical relevance: IN administration was as effective as IM administration in promoting safe chemical restraint, with minimal changes in homeostasis, with a shorter duration and latency period. [ABSTRACT FROM AUTHOR]

Objective Methods Results Discussion Letters of recommendation (LORs) are an important part of pain medicine fellowship applications that may be subject to implicit bias by the letter's author. This study evaluated letters of recommendation for applications to pain medicine fellowships in the United States to characterize biases and differences among applicants over four application cycles.This was a retrospective single‐site cohort study. De‐identified LORs were collected from 2020 to 2023 from one institution. The Valence Aware Dictionary and sEntiment Reasoner (VADER) natural language processing package scored positive LOR sentiment. In addition, the deep learning tool, Empath, scored LORs for 15 sentiments. Wilcoxon rank‐sum and one‐way ANOVA tests compared scores between applicant demographics: gender, race, medical school type, residency specialty, and chief resident status, as well as letter writers' academic position.Nine hundred and sixty‐four applications were studied over four application cycles. Program directors wrote fewer words (p = 0.020) and less positively (p < 0.001) compared to department chairs and letter writers with neither position. Department chairs wrote with less “negative emotion” compared to both program directors and writers with neither position (p < 0.001). Anesthesiologist applicants received more letters highlighting “achievement” (p < 0.001) while PM&R applicants submitted letters with less “negative emotion” (p < 0.001) compared to other specialties. Chief residents' letters scored higher in “leader” sentiment (p < 0.001) and lower in “negative emotion” (p < 0.001).Linguistic content did not favor certain genders or races over others. However, disparities in LORs do exist depending on an applicant's specialty and chief resident status, as well as the academic status of the letter writer. [ABSTRACT FROM AUTHOR]

Point of Care ultrasound (POCUS) of the lungs, also known as lung ultrasound (LUS), has emerged as a technique that allows for the diagnosis of many respiratory pathologies with greater accuracy and speed compared to conventional techniques such as chest x-ray and auscultation. The goal of this narrative review is to provide a simple and practical approach to LUS for critical care, pulmonary, and anesthesia providers, as well as respiratory therapists and other health care providers to be able to implement this technique into their clinical practice. In this review, we will discuss the basic physics of LUS, provide a hands-on scanning technique, describe LUS findings seen in normal and pathological conditions (such as mainstem intubation, pneumothorax, atelectasis, pneumonia, aspiration, COPD exacerbation, cardiogenic pulmonary edema, ARDS, and pleural effusion) and also review the training necessary to achieve competence in LUS. [ABSTRACT FROM AUTHOR]

Background: Cancer treatment that is commonly used is surgical resection. Anesthesia is necessary for surgery to take place, but the anesthetic methods used can have an impact on the cancer's ability to spread and return following the procedure. The present study was conducted to assess role of Anesthesia with multiple comorbidities in oncology patients. Materials & Methods: The study was carried out on 56 patients who underwent any type of cancer resection surgery of both genders. Parameters such as type of cancer, recurrence etc. was recorded. Results: Out of 56 patients, males were 36 and females were 20. Type of cancer was bladder cancer in 3, breast cancer in 14, colorectal cancer in 6, esophageal cancer in 3, gastric cancer in 1, hepatocellular carcinoma in 5, ovarian cancer in 3, and prostate cancer in 21 patients. The difference was significant (P< 0.05). Type of anesthesia used was epidural anesthesia in 10, general anesthesia in 5, both EA+GA in 34 and spinal anesthesia in 7 patients. The difference was significant (P< 0.05). Local recurrence was seen in 2, cancer recurrence in 3 and distant recurrence in 2 cases. The difference was significant (P< 0.05). Conclusion: RA, used alone or adjunctively with GA, is associated with a lower risk of cancer recurrence. [ABSTRACT FROM AUTHOR]

Purpose: To assess the reliability of sequential examination under anaesthesia (EUA) to determine pelvic instability and to evaluate radiological and functional outcomes in unstable lateral compression (LC) injuries. Methods: A prospective case series study was conducted from 2020 to 2022 at a university hospital on 43 cases with LC injuries that met the inclusion criteria. Sequential EUA was carried out in three steps. Posterior-only fixation or anterior–posterior fixation was done according to the algorithm. Each patient was followed up for at least 12 months, both radiologically and functionally. Results: Forty cases proved unstable and were fixed. None showed secondary displacement in the anterior–posterior fixation group. However, five cases (19.2%) of the posterior-only fixation group showed secondary displacement with a mean of 5.9 mm. Four cases of them had tetra-ramic injuries. There is a high tendency for secondary displacement at 14.5 mm or more preoperative displacement of the rami. Patients with secondary displacement showed comparable functional outcome scores to patients without secondary displacement. Posterior-only fixation showed shorter operative time, lesser radiological exposure, blood loss and iatrogenic nerve injury than anterior–posterior fixation. Conclusion: EUA is a reliable method to determine pelvic instability and management plan for LC fractures with unilateral anterior ring injury. Anterior–posterior fixation is needed if there is a tetra-ramic fracture or initial anterior ring displacement of 14.5 mm or more, irrespective of EUA. [ABSTRACT FROM AUTHOR]

Context: Propofol is a general anesthetic used in multiple clinical scenarios. Despite growing evidence supporting its use in palliative care, propofol is rarely used in palliative sedation. Reluctance toward the adoption of propofol as a sedative agent is often associated with fear of adverse events such as respiratory arrest. Objectives: We aimed to describe efficacy and safety of palliative sedation in refractory sedation with propofol using a protocol based on low, incremental dosing. Methods: A retrospective observational study featuring inpatients receiving sedative treatment with propofol in our palliative care unit in Madrid (Spain) between March 1, 2018 and February 28, 2023, following a newly developed protocol. Results: During the study period, 22 patients underwent sedation with propofol. Propofol was used successfully to control different refractory symptoms, mainly psychoexistential suffering and delirium. All patients had undergone previous failed attempts at sedation with other medications (midazolam or lemovepromazine) and presented risk factors for complicated sedation. All patients achieved satisfactory (profound) levels of sedation measured with the Ramsay Sedation Scale, but total doses varied greatly between patients. Most patients (17, 77%) received combined therapy with propofol and other sedative medications to harness synergies. The median time between start of sedation with propofol and death was 26.0 hours. No cases of apnea or death during induction were recorded. Conclusion: A protocol for palliative sedation with propofol based on low, incremental dosing, with the option of administering an initial induction bolus, shows excellent results regarding adequate levels of sedation, without observing apnea or respiratory depression. Our results promote the use of propofol to achieve palliative sedation in patients with refractory symptoms and risk factors for complicated sedation at the end of life. [ABSTRACT FROM AUTHOR]

Objective • This study was carried out to evaluate the effectiveness of general versus intraspinal anesthesia in lower limb fracture surgery. Methods • Between January 2018 and August 2022, the researchers’ hospital recruited and randomized 433 patients who underwent surgery for lower limb fractures. The study population was divided into 2 groups. Group A (n=220) received general anesthesia during surgery; group B (n=213) received intraspinal anesthesia. Factors were recorded and analyzed, including anesthesia duration, operative time, length of hospital stay, and laboratory indices such as hemoglobin (Hb), serum glutamate pyruvate transaminase (SGPT), blood urea nitrogen (BUN), creatinine (Cr). All adverse events were monitored as well. Results • There were no significant differences in anesthesia duration, surgery time, and length of hospital stay between the two patient groups (P > .05). After receiving different anesthesia approaches, both groups had similar laboratory results (P > .05). The absence of significant differences in adverse events between the two groups indicates that both methods of anesthesia have comparable surgical safety (P > .05). Conclusion • Both general anesthesia and intraspinal anesthesia provided effective anesthetic effects for lower limb fracture surgery with a similar safety profile. Patients also showed similar laboratory indices and experienced comparable anesthesia duration, operative time, and length of hospital stay. [ABSTRACT FROM AUTHOR]

Simple Summary: In this study, we evaluate dexmedetomidine as a potential alternative to xylazine for providing general anesthesia in pigs. Xylazine, a commonly used alpha-2 (α-2) adrenergic agonist, provides sedative, muscle relaxant, and analgesic effects with rapid onset but is often associated with side effects such as bradycardia, respiratory depression, and hypotension, which can limit its use. Dexmedetomidine, a more selective α-2 agonist, is gaining popularity in veterinary medicine for its enhanced sedation and analgesia, despite similar risks of cardiorespiratory suppression. We proposed that combining dexmedetomidine with tiletamine/zolazepam and ketamine (TKD) could reduce drug dosages, potentially minimizing side effects. While tiletamine/zolazepam, ketamine, and xylazine (TKX) is widely used in pigs, research on TKD is limited. This study aimed to compare the anesthetic efficacy of TKD with TKX in pigs undergoing short-term (45-min) and long-term (90-min) surgeries, hypothesizing that TKD would provide anesthesia comparable to, or even better than, TKX for both durations. This study aimed to evaluate dexmedetomidine as an alternative to xylazine in pigs. We compared TKD (0.05 mL/kg) to TKX (0.05 mL/kg) in 20 male pigs undergoing unilateral cryptorchid castration (short-term, 45-min) or bilateral cryptorchid castration (long-term, 90-min). We hypothesized that TKD would be comparable to TKX for both short-term and long-term anesthesia. Monitored parameters were classified into duration and physiological categories, including induction and recovery times, reflexes, heart rate (HR), respiratory rate (RR), arterial blood pressure, oxygen saturation (%SpO2), end-tidal carbon dioxide (ETCO2), and body temperature (TEMP). Isoflurane levels were also recorded, if used. Results showed no significant differences in duration parameters between TKD and TKX for either short-term or long-term anesthesia (induction: 1 min; recovery: 18–35 min). Physiological parameters were mostly similar between groups, although TKD caused slightly higher blood pressure during short-term anesthesia. Isoflurane levels (0.1–0.6%) were comparable between groups. Overall, the results suggest that TKD provides anesthesia comparable to TKX in pigs undergoing unilateral or bilateral cryptorchid surgery requiring short-term and long-term anesthesia. [ABSTRACT FROM AUTHOR]

(1) Introduction: Enhanced Recovery After Surgery (ERAS) protocols can create a cultural shift that will benefit patients by significantly reducing patient length of stay when compared to an equivalent group of surgical patients not following an ERAS protocol. (2) Methods: In this retrospective study of 2236 patients in a multi-center, community-based healthcare system, matching was performed based on a multitude of variables related to demographics, comorbidities, and surgical outcomes across seven ERAS protocols. These cohorts were then compared pre and post ERAS protocol implementation. (3) Results: ERAS protocols significantly reduced hospital length of stay from 3.0 days to 2.1 days (p <0.0001). Additional significant outcomes included reductions in opioid consumption from 40 morphine milligram equivalents (MMEs) to 20 MMEs (p <0.001) and decreased pain scores on postoperative day zero (POD 0), postoperative day one (POD 1), and postoperative day two (POD 2) when stratified into mild, moderate, and severe pain (p <0.001 on all three days). (4) Conclusions: ERAS protocols aggregately reduce hospital length of stay, pain scores, and opioid consumption. [ABSTRACT FROM AUTHOR]

Ischemic stroke, caused by the interruption of the blood supply to the brain, requires prompt medical intervention to prevent irreversible damage. Anesthetic management is pivotal during surgical treatments like mechanical thrombectomy, where precise strategies ensure patient safety and procedural success. This narrative review highlights key aspects of anesthetic management in ischemic stroke, focusing on preoperative evaluation, anesthetic choices, and intraoperative care. A rapid yet thorough preoperative assessment is crucial, prioritizing essential diagnostic tests and cardiovascular evaluations to determine patient frailty and potential complications. The decision between general anesthesia (GA) and conscious sedation (CS) remains debated, with GA offering better procedural conditions and CS enabling continuous neurological assessment. The selection of anesthetic agents—such as propofol, sevoflurane, midazolam, fentanyl, remifentanil, and dexmedetomidine—depends on local protocols and expertise balancing neuroprotection, hemodynamic stability, and rapid postoperative recovery. Effective blood pressure management, tailored airway strategies, and vigilant postoperative monitoring are essential to optimize outcomes. This review underscores the importance of coordinated care, incorporating multimodal monitoring and maintaining neuroprotection throughout the perioperative period. [ABSTRACT FROM AUTHOR]

Simple Summary: This study evaluated the impact of intraoperative opioid use and anesthesia type on outcomes for patients undergoing radical cystectomy for bladder cancer. Data from 508 patients treated between 2015 and 2022 were analyzed. Most (82%) received combined intravenous and epidural anesthesia, while the rest received intravenous-only anesthesia. Results showed that combined anesthesia was linked to better overall survival and fewer intensive care unit admissions. However, opioid dosage and type did not significantly affect survival, recurrence rates, or major perioperative outcomes. The findings are limited by the study's single-center, retrospective nature, and further research is needed to confirm the safety of opioids in patients undergoing radical cystectomy. Background: An increased intraoperative opioid dose seems to lead to worse outcomes in several types of cancer. We assessed the effect of intraoperatively administered opioids as well as the type of anesthesia on survival, recurrence rates and major perioperative outcomes in patients who underwent radical cystectomy (RC) for urothelial carcinoma of the urinary bladder. Methods: We included patients who underwent open RC at our center between 2015 and 2022. The role of the type and dosage of intraoperative opioid agents, such as remifentanil, sufentanil and morphine milligram equivalents (MME), as well as the type of anesthesia (intravenous only versus intravenous/epidural), was assessed regarding perioperative and long-term outcomes after RC. Results: A total of 508 patients with a median age of 73 years (IQR: 64–78) were included. Overall, 92 (18%) patients received intravenous anesthesia, whereas 416 (82%) received combined anesthesia. At a median follow-up of 270 days (IQR: 98–808), 108 (21%) deaths and 106 (21%) recurrences occurred. Combined anesthesia was associated with better survival (HR:0.63, 95% CI: 0.4–0.97, p = 0.037) and lower intensive care unit admission rates (OR: 0.49, 95% CI: 0.31–0.77, p = 0.002) in the univariate analysis (unadjusted). The type and dosage of intraoperative opioid agents did not affect long-term survival and recurrence rates, as well as major perioperative outcomes. Nevertheless, the findings of our study were limited by its single-center, retrospective design. Conclusion: The use of intraoperative opioids was not associated with worse outcomes in our cohort, while the use of additional epidural anesthesia seems to be beneficial in terms of overall survival and intensive care unit admissions. Nevertheless, further research is mandatory to validate the safety of opioids in patients undergoing RC. [ABSTRACT FROM AUTHOR]

Objective To discuss the effect of 3-2-3 abdominal breathing exercises on the occurrence of supine hypotension syndrome (SHS) and fetus in women with caesarean section after subarachnoid block. Methods A total of 131 cesarean section women were selected and randomly divided into three groups: the control group, the deep breathing group and the 3-2-3 abdominal breathing exercise group (3-2-3 group), with 44, 43 and 44 cases in each group. After subarachnoid block, the postpartum women were lied flat and received the following treatment: the control group received no intervention, the deep breathing group only instructed deep breathing and abdominal distension and in the 3-2-3 group inhalation counted 1, 2 and 3 with abdominal bulge to the highest, holding counts 1, 2 and with exhalation counted 1, 2 and 3 until the abdomen reaches the lowest. Changes of heart rates (HR) before anesthesia (T0 ), supine position for 5 minutes after anesthesia (T1 ), immediately before surgery (T2 ), before fetal removal (T3 ), after fetal removal (T4 ), as well as systolic blood pressure (SBP), mean arterial pressure (MAP) at T0 andT1 were recorded in the three groups. The occurrence of adverse reactions, the use rate of vasopressors, incidence of SHS, duration of respiratory persistence and Apgar scores of 1-minute and 5-minute in newborns were compared between the three groups. Umbilical artery blood was collected, and interleukin (IL) -1, IL-6 and tumor necrosis factor alpha (TNF- α), cortisol (Cor), norepinephrine (NE), pH value, lactate (Lac) and buffuer excess (BE) were detected. Results (1) Compared to the control group，the HR atT1 to T4 showed significant changes in the deep breathing group (P＜0.05), while the HR atT1 to T4 of the 3-2-3 group showed less fluctuation compared to the control group (P＜0.05). SBP and MAP of the control group and the deep breathing group significantly decreased at T1 (P＜0.05), but there was no significant change in MAP in the 3-2-3 group (P＞0.05). (2) Compared with the control group, the incidence of adverse reactions and SHS, as well as the use of vasopressors decreased obviously in the 3-2-3 group (P＜ 0.05), and Apgar score of newborns increased (P＜0.05). The respiratory persistence duration was longer in the 3-2-3 group than that in the deep breathing group and the control group (P＜0.05). (3) Compared to the control group, there were significant improvements in IL-1, IL-6, TNF-α, Cor, NE, pH, Lac and BE in the 3-2-3 group (all P＜0.05). Compared to the deep breathing group, there were significant differences in IL-6, TNF-α, pH value, Lac and BE in the 3-2-3 groups (P＜ 0.05). Conclusion The 3-2-3 abdominal breathing exercises can reduce the incidence of SHS, inhibit fetal stress response and acidosis, and is superior to abdominal deep breathing method in women with cesarean section after subarachnoid block. [ABSTRACT FROM AUTHOR]

Background: Neuromuscular blocking agents (NMBAs) are a crucial component of anesthesia and intensive care through the relaxation of skeletal muscles. They can lead to adverse reactions such as postoperative residual neuromuscular block. Only one agent is capable of an instant block reversal in deep block situations, but is restricted to aminosteroid agents. Among animal models, non‐human primates are an essential model for a great diversity of human disease models. The main objective of this study was to establish a model for NMBA monitoring with current available drugs before testing new reversal agents. Methods: Seven healthy male cynomolgus macaques were randomly assigned to this study. Experiments using macaques were approved by the local ethical committee (CEtEA #44). All animals were anesthetized according to institutional guidelines, with ketamine and medetomidine, allowing IV line placement and tracheal intubation. Anesthesia was maintained with isoflurane. Either rocuronium bromine (with or without sugammadex reversal) or atracurium besylate was evaluated. Monitoring was performed with two devices, TOF‐Watch and ToFscan, measuring the T4/T1 and the T4/Tref ratios, respectively. Nonparametric Mann–Whitney statistical analyses were done when indicated. Results: NMBA monitoring required adaptation compared to humans, such as stimulus intensity and electrode placement, to be efficient and valid in cynomolgus macaques. When administered, both NMBAs induced deep and persistent neuro‐muscular block at equivalent doses to clinical doses in humans. The rocuronium‐induced profound neuromuscular block could be reversed using the cyclodextrin sugammadex as a reversal agent. We report no adverse effects in these models by clinical observation, blood chemistry, or complete blood count. Conclusion: These results support the use of non‐human primate models for neuromuscular block monitoring. This represented the first step before the forthcoming testing of new NMBA‐reversal agents. [ABSTRACT FROM AUTHOR]

Background: It can be challenging for children to cooperate for a magnetic resonance imaging (MRI) exam. General anesthesia is often used to ensure a high-quality image. When determining the need for general anesthesia, many institutions use a simple age cutoff. Decisions on the necessity for anesthesia are often left to schedulers who lack training on determination of patient compliance. Objective: The study aimed to evaluate whether screening questions administered by certified child life specialists (CCLS) could successfully predict which children could complete an MRI without sedation. Materials and methods: This is a retrospective, institutional review board approved study. Data was collected as part of a quality improvement program, where a CCLS screened 4- to 12-year-old children scheduled for MRI scanning using a questionnaire. Parent responses to the screening questions, CCLS's recommendation for scheduling the MRI awake, start and end time for the MRI scan, and scan success were recorded. A predictive model for the CCLS's recommendation was developed using the child's age, estimated scan length, scan difficulty, and the parent's responses to the screening questions. The primary outcome measure was a successfully completed MRI not requiring additional imaging under anesthesia. Results: Of the 403 screened children, 317 (79%) were recommended to attempt the MRI without anesthesia. The median age of participants was 7 (IQR 4–17) years. Overall, 309 of 317 (97.5%) participants, recommended by the CCLS for the program, met the primary outcome of successful MRI completion on their first attempt. The multivariable regression model which included clinical information about the child's age, estimated scan length, scan difficulty, and four of the six parent screening questions had excellent performance (area under the curve = 0.89). Conclusion: Information collected by the CCLS via screening along with the child's age, the estimated scan length, and difficulty can help predict which children are likely to successfully complete a non-sedate MRI. [ABSTRACT FROM AUTHOR]

Background: Breastfeeding has numerous health benefits for patients and their infants. There are inconsistencies in how anesthesia providers care for lactating patients undergoing anesthesia. Providers may be cautious and have patients "pump and dump" instead of following current evidence-based recommendations. Video-based education provides a novel reference for health care providers in their fast-paced work environments. This project evaluated the effectiveness of an online video module and resources accessed at the bedside for anesthesia providers caring for lactating patients. Materials and Methods: A preintervention survey was sent to anesthesia providers at a large academic institution to assess baseline knowledge of current recommendations for caring for lactating patients having anesthesia. A quick response code-linked video module and references were created and disseminated to all anesthesia providers. A postsurvey was sent to assess knowledge and satisfaction with the educational approach. Postsurvey data were compared with presurvey data. Results: All who watched the educational video found the education helpful to care for lactating patients undergoing surgery. In the posteducation group, 93% of providers selected the correct recommendation to continue breastfeeding or pumping after general anesthesia or sedation once the patient is awake and alert, compared with 48% in the pre-education group. After education, 92% would recommend preoperative feeding or pumping prior to transport to the operating room, compared with the 50% in the pre-education group. Conclusions: Video-based, just-in-time education is an effective way to deliver updated information to anesthesia providers. This format is conducive to just-in-time delivery, and there may be implications for other patient populations that present infrequently but require population-specific care. [ABSTRACT FROM AUTHOR]

Monitoring nociception, the flow of information associated with harmful stimuli through the nervous system even during unconsciousness, is critical for proper anesthesia care during surgery. Currently, this is done by tracking heart rate and blood pressure by eye. Monitoring objectively a patient's nociceptive state remains a challenge, causing drugs to often be over-or underdosed intraoperatively. Inefficient management of surgical nociception may lead to more complex postoperative pain management and side effects such as postoperative cognitive dysfunction, particularly in elderly patients. We collected a comprehensive and multisensor prospective observational dataset focused on surgical nociception (101 surgeries, 18,582 min, and 49,878 nociceptive stimuli), including annotations of all nociceptive stimuli occurring during surgery and medications administered. Using this dataset, we developed indices of autonomic nervous system activity based on physiologically and statistically rigorous point process representations of cardiac action potentials and sweat gland activity. Next, we constructed highly interpretable supervised and unsupervised models with appropriate inductive biases that quantify surgical nociception throughout surgery. Our models track nociceptive stimuli more accurately than existing nociception monitors. We also demonstrate that the characterizing signature of nociception learned by our models resembles the known physiology of the response to pain. Our work represents an important step toward objective multisensor physiology-based markers of surgical nociception. These markers are derived from an in-depth characterization of nociception as measured during surgery itself rather than using other experimental models as surrogates for surgical nociception. [ABSTRACT FROM AUTHOR]

The article presents interim trial results comparing the effectiveness of diode laser (DL) and traditional scalpel (TS) in treating oral leukoplakia (OL) concerning recurrence and malignant transformation (MT). Topics discussed include the surgical techniques employed, the rates of recurrence and malignancy observed in each treatment group, and the statistical analysis conducted to evaluate the outcomes of the two methods.

OBJECTIVE To establish an echocardiographic technique in koi carp (Cyprinus carpio), compare cardiopulmonary parameters under manual restraint versus anesthesia, and provide a gross anatomical and histologic cardiac description. METHODS A randomized, crossover echocardiography study was performed in 40 clinically healthy adult, unknown sex, privately owned koi carp on May 10 and 11 through June 26 and 27, 2021. Echocardiography was examined for each koi under manual restraint and isoeugenol at 50 ppm, with 3 measurements per examination performed by a radiologist and cardiologist. Two koi were euthanized for gross anatomic and histologic cardiac evaluation. RESULTS Mean ejection fraction (EF), stroke volume (SV), and cardiac output (CO) were significantly lower, mean heart rate (HR) was significantly higher, and opercular rate (OPR) was decreased significantly in anesthetized compared to manually restrained koi. Poor reproducibility for EF and SV was observed. CONCLUSIONS Echocardiography was feasible in both manually restrained and anesthetized koi; however, this technique may best be applied to monitoring trends over time in individual fish due to low reproducibility. Significant differences in multiple cardiopulmonary parameters, including HR, EF, SV, CO, and OPR, were present between manually restrained and anesthetized koi. A gross anatomic and histologic cardiac description is provided for this species to pair with the echocardiographic images. CLINICAL RELEVANCE This study provides the first description of echocardiography, cardiac gross anatomy, and histology in koi. The results support echocardiography as a safe and practical noninvasive diagnostic for cardiac assessment in koi under both manual restraint and anesthesia. [ABSTRACT FROM AUTHOR]

Meta-analyses are a central part of systematic reviews. The term meta-analysis describes the statistical methods to summarize the results of the available scientific studies providing the highest possible evidence. In medicine, meta-analyses aim to guide clinical decisions. This article provides an overview of the necessary work steps. The classical meta-analysis summarizes the results of randomized controlled trials that compare an intervention against a control intervention. This is illustrated by means of an example from a Cochrane Review on videolaryngoscopy in comparison to direct laryngoscopy. Crucial methodological aspects such as the weighting of individual studies when pooling their results as well as the evaluation of study heterogeneity and potential publication bias are explained. The second part of the article focusses on two extensions of meta-analyses: the individual patient data meta-analysis and the network meta-analysis. The individual patient data meta-analysis makes use of the information that is available from the patient-level data of the included studies. As an example, the work accomplished by an international collaboration on the efficacy of acupuncture in chronic pain is presented. A network meta-analysis enables the comparison of more than two interventions by making use not only of the available direct but also of the respective indirect evidence. This is illustrated by means of a Cochrane Review on drugs for the prophylaxis of postoperative nausea and vomiting. [ABSTRACT FROM AUTHOR]