Background/Objectives: Surgical pneumoperitoneum (PP) significantly impacts volume-controlled ventilation, characterized by reduced respiratory compliance, elevated peak inspiratory pressure, and an accelerated expiratory phase due to an earlier onset of the airway pressure gradient. We hypothesized that this would shorten expiratory time, potentially increasing expiratory flow rate compared to pneumoperitoneum conditions. Calculations were performed to establish correlations between respiratory parameters and the mean increase in expiratory flow rate relative to baseline. Methods: Mechanical ventilation parameters were recorded for 67 patients both pre- and post-PP. Ventilator settings were standardized with a tidal volume of 6 mL/kg, a respiratory rate of 12 breaths per minute, a PEEP of 3 cmH2O, an inspiratory time of 2 s, and an inspiratory-to-expiratory ratio of 1:1.5 (I:E). Results: The application of PP increased both peak inspiratory pressure and mean expiratory flow rate by 28% compared to baseline levels. The elevated intra-abdominal pressure of 20 cmH2O resulted in a 34% reduction in dynamic chest compliance, a 50% increase in elastance, and a 20% increase in airway resistance. The mean expiratory flow rate increments relative to baseline showed a significant negative correlation with elastance (p = 0.0119) and a positive correlation with dynamic compliance (p = 0.0028) and resistance (p = 0.0240). Conclusions: A PP of 20 cmH2O resulted in an increase in the mean expiratory flow rate in the conventional I:E ratio in the volume-ventilated mode. PP reduces lung and chest wall compliance by elevating the diaphragm, compressing the thoracic cavity, and increasing airway pressures. Consequently, the lungs and chest wall stiffen, requiring greater ventilatory effort and accelerating expiratory flow due to increased airway resistance and altered pulmonary mechanics. Prolonging the inspiratory phase through I:E ratio adjustment helps maintain peak inspiratory pressures closer to baseline levels, and this method enhances the safety and efficacy of mechanical ventilation in maintaining optimal respiratory function during laparoscopic surgery.
Somatostatin (SST) released from capsaicin-sensitive sensory nerves in response to stimulation exerts systemic anti-inflammatory, analgesic actions. Its elevation correlates with the extent of tissue injury. We measured plasma SST alterations during spine operations (scoliosis and herniated disc) to determine whether its release might be a general protective mechanism during painful conditions. Sampling timepoints were baseline (1), after: soft tissue retraction (2), osteotomy (3), skin closure (4), the following morning (5). Plasma SST-like immunoreactivity (SST-LI) determined by radioimmunoassay was correlated with pain intensity and the correction angle (Cobb angle). In scoliosis surgery, postoperative pain intensity (VAS 2.) 1 day after surgery significantly increased (from 1.44 SEM ± 0.68 to 6.77 SEM ± 0.82, p = 0.0028) and positively correlated with the Cobb angle (p = 0.0235). The baseline Cobb degree negatively correlated (p = 0.0459) with the preoperative SST-LI. The plasma SST-LI significantly increased in fraction 3 compared to the baseline (p < 0.05), and significantly decreased thereafter (p < 0.001). In contrast, in herniated disc operations no SST-LI changes were observed in either group. The VAS decreased after surgery both in the traditional (mean 6.83 to 2.29, p = 0.0005) and microdiscectomy groups (mean 7.22 to 2.11, p = 0.0009). More extensive and destructive scoliosis surgery might cause greater tissue damage with greater pain (inflammation), which results in a significant SST release into the plasma from the sensory nerves. SST is suggested to be involved in an endogenous postoperative analgesic (anti-inflammatory) mechanism.
Background/Objectives: Stimulated capsaicin-sensitive peptidergic sensory nerves release somatostatin (SST), which has systemic anti-inflammatory and analgesic effects, correlating with the severity of tissue injury. Previous studies suggest that SST release into the systemic circulation is likely to serve as a protective mechanism during thoracic and orthopedic surgeries, scoliosis operations, and septic conditions, all involving significant tissue damage, pain, and inflammation. In a severe systemic inflammation rat model, SST released from sensory nerves into the bloodstream enhanced innate defense, reducing mortality. Inflammation is the key pathophysiological process responsible for the formation, progression, instability, and healing of atherosclerotic plaques. Methods: We measured SST-like immunoreactivity (SST-LI) in the plasma of healthy volunteers in different age groups and also that of stable angina patients with coronary heart disease (CHD) using ELISA and tracked changes during invasive coronary interventions (coronarography) with and without stent implantation. Samples were collected at (1) pre-intervention, (2) after coronarography, (3) 2 h after coronarography initiation and coronary stent placement, and (4) the next morning. Results: There was a strong negative correlation between SST-LI concentrations and age; the plasma SST-LI of older healthy volunteers (47–73 years) was significantly lower than in young ones (24–27 years). Baseline SST-LI in CHD patients who needed stents was significantly reduced compared to those not requiring stents. Plasma SST-LI significantly increased two hours post stent insertion and the next morning compared to pre-intervention levels. Conclusions: Age-related SST decrease might be a consequence of lower gene expression within specific hypo-thalamic nuclei as has been previously demonstrated in rodent animals. Reperfusion of ischemic myocardium post-stent implantation may trigger SST release, potentially offering protective benefits in coronary heart disease. Investigating this SST-mediated mechanism could offer valuable insights for future therapies.
Study Abroad programs yield substantial linguistic advantages in addition to fostering academic and intercultural enrichment. Nevertheless, some students miss these programs due to financial constraints, academic commitments, or insufficient language skills. This paper reports the findings of a qualitative action research study that seeks to evaluate the impact of a multilingual and multicultural class, designed as a quasi-Study Abroad experience, on Hungarian medical students’ perceived English linguistic development by the end of the semester. Semi-structured focus group interviews were carried out with 42 Hungarian medical students at the end of the spring and autumn semesters of the 2021–2022 and the 2022–2023 academic years. The outcomes of the focus-group interviews indicated that the students had a positive experience studying in a multilingual and multicultural environment; their willingness to engage in English communication, along with an increase in self-confidence, was apparent, ultimately showcasing improved perceived proficiency in English communication skills by the end of the term. Creating an educational setting abundant in linguistic and cultural diversity and integrating multicultural project-based learning activities within the curriculum to simulate a quasi-Study Abroad experience represent methodological frameworks that could serve as pivotal models for shaping similar courses in the future.
The increasing number of international students choosing a non-traditional study destination, such as Hungary, underscores the country’s growing appeal in the global higher education landscape. This trend is driven by Hungary’s competitive and quality educational programmes, supportive policies, and rich cultural and historical heritage. This exploratory study examines the cross-cultural experiences of international students studying in the country, drawing on data from a cross-sectional online survey conducted in 2024. Through descriptive and thematic analyses, three principal findings emerged. First, students are attracted to study in Hungary by a combination of instrumental and cultural factors, including the quality and affordability of education, the country’s cultural heritage, and its strategic location in Central Europe. Second, the most significant challenges involve adapting to a different academic culture and overcoming language barriers, both of which hinder everyday communication. Third, difficulties in establishing meaningful connections with Hungarian peers often exacerbate feelings of social distance, thereby limiting the integration of international students. By foregrounding student perspectives in an under-researched, non-traditional study destination context, this study contributes to a deeper understanding of international student mobility beyond the traditional study destinations of Anglophone and Western European settings. The findings offer valuable insights for higher education institutions and policymakers to improve the integration of international students, enhance support structures, and further strengthen Hungary’s position as an attractive and inclusive study destination for global talent.
Background/Objectives: Sepsis is a life-threatening syndrome characterized by a dysregulated host response to infection, commonly accompanied by hypoalbuminemia (<30 g/L serum albumin level), associated with excessive production of reactive oxygen and nitrogen species, leading to oxidative stress, endothelial dysfunction, and organ injury. Low serum albumin reflects increased vascular permeability, reduced hepatic synthesis, and enhanced proteolysis. It also indicates the loss of albumin’s antioxidant and anti-inflammatory functions beyond oncotic regulation. Hypoalbuminemia may exacerbate this by reducing plasma antioxidant capacity and free radical scavenging, supporting interest in albumin supplementation as a potential therapeutic strategy. Methods: This prospective, randomized study investigated the effects of 3-day albumin administration in ICU patients (n = 38) with sepsis and hypoalbuminemia by assessing changes in oxidative stress and inflammatory markers. Results: Albumin supplementation increased serum albumin (p < 0.001) and was associated with higher total antioxidant capacity (Day 3 p = 0.045; Day 5 p = 0.004), glutathione levels (Day 3 p = 0.003; Day 5 p = 0.008), and protein sulfhydryl groups (Day 3–5 p = 0.004). Albumin-treated patients showed increased urinary concentration of the oxidative stress–related tyrosine isomers ortho- and meta-tyrosine (p = 0.004 and p = 0.001, respectively). Catalase activity and myeloperoxidase, procalcitonin, and IL-1β levels did not differ between groups, while IL-6 declined over time (p = 0.029). Conclusions: Based on our results, in septic patients with hypoalbuminemia, short-term albumin supplementation seems to restore serum albumin and improve systemic redox status, as evidenced by increased total antioxidant capacity, glutathione, and protein sulfhydryl levels. However, albumin supplementation did not significantly affect systemic inflammatory markers or cytokine dynamics. Albumin appears to act primarily by modulating oxidative stress, supporting its role as an adjunctive therapy to restore redox homeostasis in sepsis.