Severe scoliosis with prior corrective spinal surgery poses significant anesthetic challenges in obstetric patients due to altered spinal anatomy and potential respiratory compromise. Conventional neuraxial or general anesthesia may be risky, making alternative approaches necessary for safe cesarean delivery. The Taylor paramedian technique provides an effective option by bypassing distorted midline anatomy.

A 35-year-old primigravida (G1P0) at 37±1 week's gestation with surgically corrected thoracolumbar scoliosis and restrictive pulmonary disease, complicated by bronchopneumonia, was admitted for cesarean delivery. Preanesthetic assessment revealed limited cervical mobility, restricted mouth opening, and challenging spinal landmarks. Initial midline puncture at L3-L4 failed, so a paramedian Taylor approach at L5-S1 using anatomical landmarks was performed. Intrathecal 12 mg plain 0.5% bupivacaine with 20 µg fentanyl achieved complete sensory and motor block. Maternal hemodynamics remained stable with normal oxygenation. Cesarean section was completed uneventfully, delivering a healthy neonate weighing 3 kg with Apgar scores 8 and 9. Postoperative recovery was smooth, and the patient was discharged on day 3.

Paramedian Taylor spinal anesthesia is a safe and effective alternative in parturients with severe scoliosis and restrictive pulmonary disease. Individualized planning, technical expertise, and careful execution allow complete sensomotor block, minimize respiratory risk, and ensure successful cesarean delivery in high-risk patients.

A 3-year-old male passenger developed acute respiratory distress approximately 30 minutes after takeoff during an international flight from the United States to Addis Ababa. Despite multiple rounds of nebulized albuterol and escalating oxygen therapy, his respiratory status progressively deteriorated. A multidisciplinary team of onboard physicians administered epinephrine and hydrocortisone from the emergency medical kit while coordinating with ground medical control. The aircraft was subsequently diverted to Athens, Greece, where the child was handed over to emergency services and later stabilized. This case highlights the challenges of managing pediatric respiratory distress in-flight and the critical importance of prompt coordination, adequate medical supplies, and crew preparedness.

Obstructive sleep apnea (OSA), characterized by recurrent apneic/hypopneic events and intermittent hypoxia, exhibits a high yet underrecognized prevalence (40%-65%) among patients with acute myocardial infarction (MI), compounded by suboptimal performance of conventional screening modalities. A defining epidemiological feature is the pronounced nocturnal predominance of MI onset in OSA cohorts, diverging from the diurnal pattern observed in non-OSA populations.Pathophysiologically, OSA manifests a paradoxical duality in the context of MI: acute cardioprotective effects, including reduced in-hospital mortality, attenuated infarct size (evidenced by lower peak troponin levels), and enhanced coronary collateralization, are attributed to ischemic preconditioning induced by chronic intermittent hypoxia. Conversely, OSA independently exacerbates long-term post-MI risk, with severe nocturnal hypoxemia driving elevated rates of major adverse cardiovascular events (MACE), alongside maladaptive ventricular remodeling, electrical instability, and endothelial dysfunction-mechanisms underpinned by synergistic activation of inflammatory pathways and cell death signaling.Therapeutically, the role of OSA-directed interventions in post-MI management remains contentious. Observational data suggest potential benefits of continuous positive airway pressure (CPAP), but large randomized controlled trials fail to demonstrate incremental cardioprotection in broader cardiovascular cohorts. Emerging proof-of-concept evidence suggests that early adaptive servo-ventilation (ASV) may influence myocardial salvage after acute MI in carefully selected patients with sleep-disordered breathing, particularly those without reduced ejection fraction. However, these findings should be interpreted cautiously given the small trial size and prior safety concerns regarding ASV in patients with heart failure and reduced ejection fraction. Resolving these uncertainties necessitates targeted research incorporating optimized adherence strategies and enhanced screening protocols to reconcile OSA's acute phenotypic associations with its long-term prognostic implications.

To interpret and transmit biological signals, proteins use correlated motions. Experimental determination of these dynamics and the structural distributions they generate remains a key challenge. Here, using 1146 crystal structures of the main protease (M^pro) from SARS-CoV-2, we were able to infer a model of the enzyme's structural fluctuations. M^pro is regulated by concentration, becoming enzymatically active after forming a homodimer. To understand the structural changes that enable dimerization to activate catalysis, we employed our model, predicting which regions of the dimerization domain are structurally correlated with the active site. Mutations at these positions, expected to disrupt catalysis, resulted in a dramatic reduction in activity in one case, a mild effect in the second, and none in the third. Additional crystallography and biophysical experiments provide a mechanistic explanation for these results. Our work suggests that a statistical crystallography, in which numerous crystallographic datasets are analyzed, can reveal the structural fluctuations of protein native states and help uncover their biological function.

Idiopathic pulmonary fibrosis (IPF) is a chronic, progressive interstitial lung disease characterized by deregulated cell death programs that drive epithelial injury, fibroblast activation, and irreversible tissue remodeling. Multiple regulated cell death (RCD) modalities, including apoptosis, autophagy, necrosis, ferroptosis, pyroptosis, and cuproptosis, are implicated in IPF pathogenesis across epithelial cells, fibroblasts, macrophages, and endothelial cells. Apoptosis leads to alveolar epithelial cell loss and fibrosis initiation, whereas autophagy modulates fibroblast proliferation and extracellular matrix turnover. Necrosis amplifies inflammation; ferroptosis promotes epithelial dysfunction through lipid peroxidation; and pyroptosis activates the inflammasome pathway. Emerging evidence links cuproptosis, a copper-dependent death mode, to fibrotic remodeling. These pathways are interconnected: apoptosis and autophagy can shift within the same cell, and epithelial apoptosis may induce macrophage pyroptosis, amplifying the profibrotic cascade. Emerging evidence indicates that these RCD modalities are coordinated through shared stress signals and regulatory nodes. Therapeutically, targeting RCD offers promising opportunities, with Bcl-2 inhibitors for apoptosis, mTOR inhibitors for autophagy, iron chelators for ferroptosis, and early interventions for pyroptosis and cuproptosis. Targeting shared regulatory mechanisms or combining pathway-directed strategies may further enhance efficacy. By balancing cell death and survival, these strategies could attenuate inflammation, restrict fibroblast-driven scarring, and restore repair capacity. This review underscores the complexity and crosstalk of RCD in IPF, and proposes a conceptual framework for their coordinated regulation, highlighting its potential for therapeutic innovation.

A renewed reforming of the higher education system is taking place in the conditions of the Covid-19 pandemic, as well as the perception of the essence and content of the pedagogical profession is changing in the changing conditions of today, as well as new requirements are being put forward to the personality of the teacher. The purpose of the article was to study the dynamics of perceptions and evaluation of the components of the image of an ideal teacher by students in the process of traditional (full-time) and remote (online) learning in a higher education institution. Diagnostic methods were used in the research: free description method on the topic "Portrait of a teacher whom I respect", content analysis, "Educational-cognitive interaction between a student and a teacher of the university" method (author I.I. Snyadanko), methods of statistical data processing. The authors conducted two experimental sections: the first section was conducted during traditional full-time learning before the Covid-19 pandemic, the second section was conducted during the remote learning period during the Covid-19 pandemic. As a result of the research, it was determined that, in general, first-year students prefer strict and demanding teachers, but at the same time value such teacher qualities as kindness and sacrifice. The personal characteristics of the teacher and the ability to perceive the student as a person are more important for second-year students. A comparison of the data of the two sections made it possible to conclude that the ideal teacher should meet much greater characteristics in the process of remote learning than in the process of traditional learning. The results of the article can be used to optimize the educational and cognitive interaction between students and teachers of the university, to improve the professional training of pedagogical personnel.

Chronic obstructive pulmonary disease (COPD) features poor sleep quality due to nocturnal dyspnea and psychological distress, leading to increased hospital admissions and reduced quality of life. Considering patient preference and existing evidence, non-pharmacological intervention, i.e. cognitive behavioral therapy for insomnia (CBT-I), on sleep for COPD patients had its potential efficacy. However, current guidelines do not include sleep management as standard care, and there is a lack of comprehensive reviews on this topic. This systematic review hence evaluated the effectiveness of non-pharmacological treatments for poor sleep in COPD patients.

Literature identification was conducted through MEDLINE, CINHAL PLUS, AMED and ScienceDirect under PRISMA guidance. Randomized controlled trials, cohort studies and cross-sectional studies regarding poor sleep quality among COPD population were retrieved. Abstract, title and full text screening were performed by the author and assessed by a second reviewer. Risk of bias and quality appraisal was done with JBI scale.

12 articles (783 patients) were identified, including 9 randomized controlled trials, 1 cohort study and 2 cross-sectional studies. The risk of bias (quality) was ranked: low (high) for 3, moderate (moderate) for 7 and high (low) for 2. Several interventions were identified (number of study): CBT-I (2) and cognitive behavioral therapy (1), pulmonary rehabilitation (PR) (2), progressive muscle relaxation technique (PMRT) (2), non-invasive ventilation (NIV) (3), relaxation exercise (RE) (1) and therapeutic touch (TT) (1). Significant improvement in sleep quality was reported in PMRT, TT and RE.

PMRT, TT and RE showed improvement in sleep quality in COPD patients yet unable to rank their effectiveness as heterogeneous outcome measures across studies. No substantial evidence was capable to demonstrate effectiveness of CBT-I, CBT, PR and NIV to explicit COPD patients. Moreover, future research including combination of non-pharmacological treatments is needed.

Dexmedetomidine (DEX) is increasingly used for neonatal sedation, but safety data remain limited. We conducted a single-center retrospective study including neonates receiving continuous DEX infusion. Cardiorespiratory events were extracted from bedside monitoring during the 8 h before and the 24 h after initiation. Hemodynamic and clinical parameters were analyzed, and autonomic activity was assessed using Newborn Infant Parasympathetic Evaluation (NIPE) monitoring in a subgroup. Thirty-seven infants (18 preterm, 19 term) were included; 86% received concomitant morphine. Bradycardia episodes increased after DEX initiation, particularly in preterm infants (p < 0.05). In contrast, hypotension, lactate levels remained unchanged, while urine output varied over time without a clinically meaningful reduction. Hypoxemic events decreased, while oxygen requirements remained stable. In the NIPE subgroup, heart rate decreased, with a trend toward increased NIPE values. DEX was associated with increased bradycardia without clear evidence of impaired hemodynamic or respiratory tolerance. These findings suggest an overall reassuring short-term safety profile and suggest a physiologically mediated sedative effect. What is Known: • Dexmedetomidine is increasingly used for sedation in preterm and term neonates, but cardiorespiratory safety data remain limited. • Bradycardia is the most frequently reported adverse effect. What is New: • Continuous monitor-derived data show increased bradycardia after dexmedetomidine initiation, without hypotension or impaired perfusion, while hypoxemic events decreased. • Autonomic monitoring (NIPE) suggests a trend toward increased parasympathetic activity, which may reflect modulation of autonomic balance under dexmedetomidine.

This study reviewed pediatric cases managed by the Aeromedical Evacuation Squadron (AMES) of the Japan Air Self-Defense Force and analyzed patient characteristics.

Pediatric transportation cases (n = 34) between 2006 and 2023 were reviewed. Data on patient age, main disease, transportation purpose and distance, and use of mechanical ventilators or extracorporeal membrane oxygenation (ECMO) were obtained by referring to the records.

The average (standard deviation) patient age was 5.7 (5.8) years (range: 0-16 years), and 17 patients (50%) were younger than 1 year of age. Furthermore, 10 (58.8%) of these 17 children were younger than 7 months of age and 1 child was under 1 month of age. The most common diseases in the overall patient population were cardiovascular diseases (CVDs, n = 18) and respiratory diseases (RDs, n = 14). The purposes of transportation in cases of 17 patients with CVDs and 3 patients with RDs were the implantation of a ventricular assist device and lung transplantation, respectively. The average transportation distance was 453.7 (218.6) (range: 176.9-962.8) miles or 730.2 (351.8) (range: 284.7-1,549.5) km, and in 8 cases, the transportation distance was > 600 miles. Of the patients, 29 (85.3%) were fitted with a ventilator, of whom 8 received ECMO (6 with CVDs and 2 with RDs). In all cases, physicians from the transporting hospitals were on board. There were no cases of cardiac arrest during the transportation.

AMES plays an important role, especially in the long-distance transportation of critically ill children.

The prehospital management of moderate/severe traumatic brain injury (TBI) centers on preventing secondary brain injury. Prehospital emergency anesthesia (PHEA) may be required for optimal neuroprotective care. Continuous invasive arterial blood pressure (IBP) monitoring is increasingly used in this cohort. PHEA can result in significant blood pressure (BP) changes, particularly around induction. IBP allows targeted BP management. This study analyzed hypotension frequency, depth, and duration in patients with suspected TBI monitored with IBP before PHEA.

This was a retrospective analysis of patients with suspected TBI attended by Air Ambulance Charity Kent Surrey Sussex (KSS) who received IBP before PHEA between January 6, 2022, and July 6, 2024. The magnitude and duration of "absolute hypotension" (systolic BP [SBP], < 90 mm Hg) were combined to establish a dose of absolute hypotension (mm Hg × minutes). The primary endpoints were incidence and dose of absolute hypotension.

A total of 305 patients were identified; 140 (45.9%) were included. The median age was 58 years (interquartile range [IQR], 42-73), the predominant sex was male (n = 108; 77%), and the median Glasgow coma scale score was 6/15 (IQR, 4.0-7.5). Thirteen patients (9.3%) had absolute hypotension before PHEA, increasing to 53 (37.9%) after PHEA. Twenty-five patients (47.2%) had initial absolute hypotensive episodes that occurred 5 minutes after PHEA, with a median duration of 3 minutes (IQR, 1.0-4.5). The median dose of absolute hypotension was 144 mm Hg × minutes (IQR, 3.75-1,675.5). Twenty-five patients (17.9%) had "clinically important hypotension" (SBP, < 110 mm Hg) before PHEA, increasing to 80 after PHEA (57.1%). Pre-PHEA absolute and clinically important hypotension were associated with both incidence and dose of post-PHEA absolute hypotension.

This study highlights a higher incidence of absolute hypotension using IBP than previous studies using intermittent noninvasive monitoring. Although post-PHEA absolute hypotension was common, more than half of these events were brief (< 5 minutes). These findings highlight the importance of analyzing hypotension depth and duration and suggest the need for prehospital outcome-based studies using continuous IBP.