Cross-sectional Observational Study Research Articles

Relative peripheral refractive errors in Chinese children with myopic anisometropia

AIM: To compare relative peripheral refractive errors (RPREs) in Chinese children with and without myopic anisometropia (MAI) and to explore the relationship between RPRE and myopia. METHODS: This observational cross-sectional study included 160 children divided into two groups according to the interocular spherical equivalent refraction (SER) difference ≥1.0 D in the MAI group (n=80) and <1.0 D in the non-MAI group (n=80). The MAI group was further divided into two subgroups: ?SER<2.0 D group and ?SER≥2.0 D group. Basic ocular biometric parameters of axial length (AL), average keratometry (Ave K), cylinder (CYL), surface regularity index (SRI), and surface asymmetry index (SAI) were recorded. In addition, multispectral refraction topography was performed to measure RPRE, and the parameters were recorded as total refraction difference value (TRDV), refraction difference value (RDV) 0-10, RDV10-20, RDV20-30, RDV30-40, RDV40-53, RDV-superior (RDV-S), RDV-inferior (RDV-I), RDV-temporal (RDV-T) and RDV-nasal (RDV-N). RESULTS: In the non-MAI group, the interocular differences of all parameters of RPRE were not significant. In the MAI group, the interocular differences of TRDV, RDV10-53, RDV-S, RDV-I, RDV-T, and RDV-N were significant. In subgroup analysis, the interocular differences of TRDV, RDV30-53, RDV-I, and RDV-T were significant in ?SER<2.0 D group and ?SER≥2.0 D group, but the interocular differences of RDV10-30, RDV-S and RDV-N were only significant in the ?SER≥2.0 D group. In correlation analysis, ?TRDV, ?RDV 10-53, ?RDV-S, and ?RDV-N were negatively correlated with ?SER but positively correlated with ?AL. CONCLUSION: The more myopic eyes have larger hyperopic RPRE in Chinese children with MAI in certain retinal range, and partial ?RPRE is closely associated with ?SER and ?AL.

Determining the Correlation of Fat-Free Mass, Power, and Maximum Hamstring Force in Female Basketball Athletes

Background. In competitive sports, especially basketball, physical attributes such as agility, speed, strength, and power are crucial for performance. Objectives. This study aimed to examine the correlation between fat-free mass (FFM), countermovement jump (CMJ) power, and maximum hamstring force in female basketball athletes, providing insights that could enhance performance and reduce injury risk. Materials and methods. This observational cross-sectional study investigates the relationship between fat-free mass (FFM), power, and maximum hamstring force in 45 female basketball athletes. The Anderson-Darling test for assessing normality and Spearman’s correlation for non-normally distributed data were used to conduct the study. Results. Significant correlations were found between FFM and maximum hamstring force in the both right (r = 0.585, p < 0.001) and left legs (r = 0.522, p < 0.001), as well as between (CMJ) power and maximum hamstring force for both legs (right: r = 0.467, p = 0.001; left: r = 0.434, p = 0.003). Additionally, power was significantly correlated with jump height (r = 0.604, p < 0.001). Conclusions. These findings suggest that FFM and power are critical determinants of hamstring strength and explosive performance in female basketball athletes.

Myocardial deformation in children post cardiac surgery, a cross-sectional prospective study

Abstract Background Myocardial deformation by speckle tracking echocardiography provides valuable information on the left ventricular function. The study aims to assess myocardial deformation in terms of left ventricular strain as an indicator of myocardial function in children after cardiac surgery at outpatient follow-up visits. Methods The study design was a prospective observational cross-sectional study that included pediatric patients after biventricular cardiac surgery during the postoperative follow-up visits in the outpatient department. In addition to conventional echocardiographic examination, two-dimensional speckle tracking echocardiography was done to evaluate myocardial deformation in terms of left ventricular strain. Echocardiographic measurements were done offline and were compared to published reference normal values for age. Study subjects were divided according to age at follow-up into four groups (1 month–1 year, 1–2 years, 2–5 years, and 5–11 years). Results Over ten months, 100 patients (64 males and 36 females) were included in the study. The median age was 30.8 months (IQR 12.8–65.3 months), the median weight was 11.7 kg (IQR 8–17 kg) and the median duration after surgery was 7.3 months (IQR 3.2–30.8 months). Longitudinal strain values were significantly (p < 0.001) lower than reference values for different age groups. Global circumferential strain showed no significant difference from the reference values. The duration after surgery had a statistically significant effect on longitudinal strain values, with improvement of the strain values with increasing intervals after surgery. Conclusion Using myocardial deformation method to evaluate cardiac function may detect underlying cardiac function abnormalities even with normal traditional functional parameters, which could have implications for patient management and follow-up.

Conspiracy Thinking, Conspiracy Beliefs, Denialism, Motivation, and COVID-19 Vaccination Intentions in Costa Rica

ABSTRACT An observational cross-sectional study was conducted among inhabitants of Costa Rica to examine motivational determinants of COVID-19 vaccination intentions (CVI), as well as to better understand the role of a set of conspiracy-related variables within the framework of the Theory of Planned Behavior (TPB). Data were collected online, and a subsample of those not yet vaccinated (N = 406, age = 44.35, S. D. = 13.23, 74.9% women) was selected. They reported TPB-variables, risk perception, conspiracy-related variables, and sociodemographic information. Structural equation was used to model the assumption that conspiracy beliefs presented direct and indirect effects on intentions. Conspiracy thinking, denialism, and sociodemographic information were also specified as determinants of conspiracy beliefs and vaccination intentions. Most determinants presented direct effects on intentions. Only perceived behavioral control, denialism, and conspiracy thinking presented no direct effects on intentions. Conspiracy beliefs had indirect effects on intentions via most TPB-variables and risk perception. Conspiracy beliefs were predicted only by conspiracy thinking, gender (male), and education. Sociodemographic variables had no effects on intentions. Evidence suggested that a mechanism integrating conspiracy-related variables, risk perception, and TPB-variables predicted CVI. Education and gender played a role in the onset of conspiracy beliefs and thereafter vaccination intentions.

Elevated Cerebrospinal Fluid Ubiquitin Carboxyl-Terminal Hydrolase Isozyme L1 in Asymptomatic C9orf72 Hexanucleotide Repeat Expansion Carriers.

To identify biochemical changes in individuals at higher risk of developing amyotrophic lateral sclerosis (ALS) or frontotemporal dementia (FTD) via C9orf72 hexanucleotide repeat expansion (HRE) heterozygosity. Cross-sectional observational study of 48 asymptomatic C9orf72 HRE carriers, 39 asymptomatic non-carrier controls, 19 people with sporadic ALS, 10 with C9orf72 ALS, 14 with sporadic FTD, and 10 with C9orf72 FTD. Relative abundance of 30 pre-defined cerebrospinal fluid biomarkers of ALS and FTD were compared in asymptomatic C9orf72 HRE carriers and age-matched non-carrier controls. Differential abundance of these proteins was quantified using data independent acquisition mass spectrometry or electro chemiluminescent assay for neurofilament light chain. Unbiased analysis of the entire cerebrospinal fluid proteome was then carried out. Ubiquitin carboxyl-hydrolase isozyme L1 levels were higher in asymptomatic C9orf72 HRE carriers compared with age-matched non-carriers (log2fold change 0.20, FDR-adjusted p-value = 0.034), whereas neurofilament light chain levels did not significantly differ. Ubiquitin carboxyl-hydrolase isozyme L1 levels remained elevated after matching of groups by neurofilament levels (p = 0.011), and after adjusting for age, sex, and neurofilament levels. A significant difference was also observed when restricting analysis to younger participants (<37) matched by neurofilament level (p = 0.007). Elevated cerebrospinal fluid ubiquitin carboxyl-hydrolase isozyme L1 levels in C9orf72 HRE carriers can occur in the absence of increased neurofilament levels, potentially reflecting either compensatory or pathogenic mechanisms preceding rapid neuronal loss. This brings forward the window on changes associated with the C9orf72 HRE carrier state, with potential to inform understanding of penetrance and approaches to prevention. ANN NEUROL 2024.

Comparative Study of Staphylococcus aureus Biofilm Formation among Clinical Isolates and Nasal Colonisers

Staphylococcus aureus (S. aureus) a noted versatile facultative commensal with pathogenic potential. This facultatively anaerobic cocci lives a commensal lifestyle in about a quarter of the world’s population awaiting a breach in the immune barrier to establish as a debilitating pathogen. This bacterium produces biofilms which acts as adhesive molecule enhancing the bacterial virulence and gives it an ability to withstand antibiotics, thereby causing tremendous burden on the healthcare community in terms of patient mortality and morbidity. This study assesses the biofilm producing ability among clinical isolates of staphylococci in comparison to colonizing staphylococci isolated from anterior nares of healthcare personnel. The present cross-sectional observational study was conducted in a tertiary care hospital in Mysore, India. In this study, 50 pathogenic isolates of S. aureus were assessed for phenotypic biofilm production. Additionally, 100 healthcare personnel were screened for nasal colonisation with S. aureus and the colonizing isolates were also screened for phenotypic biofilm formation. Phenotypic biofilm formation was evident among 22% of the pathogenic isolates. 23% of clinical S. aureus isolates demonstrated methicillin resistance (MRSA). There was no significant association of MRSA status with biofilm production (p &gt; 0.05). Out of the 100 healthcare professionals screened for nasal carriage of S. aureus, 30% were colonized with S. aureus. Biofilm production among colonizing S. aureus isolates was found to be 26.6%. Methicillin resistance was a whopping 40% among the colonising strains. MRSA carriage was found to be highest among those healthcare personnel who had worked for an average of 20-30 years in the hospital environment. The Present study showed no significant association of biofilm production with the pathogenic potential of the S. aureus isolates (p &gt; 0.05). Additionally, there was no significant association of methicillin resistance with the pathogenicity of the isolate. In conclusion, the interplay of virulence genes, biofilm forming ability, drug resistance of the isolate in coordination with the host immune status dictate the fate of the colonising as well as clinical isolates of S. aureus.

Clinical and imaging characteristics associated with foveal neovascularization in proliferative diabetic retinopathy.

To assess the prevalence of foveal neovascularization (FNV) and its associated clinical features in proliferative diabetic retinopathy (PDR) eyes. Cross-sectional observational study. Participants underwent ultra-widefield photography, optical coherence tomography (OCT), and swept-source OCT angiography (SS-OCTA). FNV was defined as a hyperreflective lesion breaching the internal limiting membrane and displaying flow signal on OCTA, within 1-mm of foveal avascular zone. Vascular metrics were obtained from the ARI Network portal. Ischemic index (ISI) and inner choroid flow deficit percentage were calculated using FIJI from 12 × 12 and 6 × 6-mm scans, respectively. Logistic regression models were used to compare eyes with and without FNV. We included 249 eyes of 164 patients (age: 58 [50-65] years). FNV was identified in 20 eyes (8%). Univariate logistic regression revealed significant associations between FNV and younger age (p = 0.03), higher maximal HbA1c (p = 0.04), worse visual acuity (VA) (p = 0.01), presence of disorganization of retinal inner layers (DRIL) (p = 0.01), no macular posterior vitreous detachment (PVD) (p = 0.03), neovascularization elsewhere (NVE) and at the disc (NVD) (p = 0.01 and p = 0.001), and greater ISI (p = 0.04). In multivariable analysis, a significant association remained between FNV and worse VA (p = 0.04), NVD (p < 0.001), DRIL (p < 0.001), and absence of macular PVD (p = 0.01). No associations were found with SS-OCTA vascular metrics. This study provides a comprehensive characterization of FNV in PDR. FNV was identified in 8% of our cohort, being more prevalent in younger patients with severe PDR, as evidenced by NVD and DRIL presence. The absence of macular PVD may explain its association with younger age. What is known • Neovascularization at the fovea occurs rarely in proliferative diabetic retinopathy. • OCT and OCT-angiography can be used to evaluate foveal neovascularization, which may be associated with choroidal vascular abnormalities. What is new • Foveal neovascularization was seen in 8% of eyes with proliferative diabetic retinopathy in this cohort. • Risk factors for foveal neovascularization included younger age, absence of macular posterior vitreous detachment, presence of neovascularization of the disc, and presence of disorganization of retinal inner layers. • We did not identify an association between foveal neovascularization and choroidal perfusion abnormalities in this study.

Adolescents’ Knowledge and Misconceptions About Sexually Transmitted Infections: A Cross-Sectional Study in Middle School Students in Portugal

Background/Objectives: Adolescence represents a period of heightened vulnerability to risky sexual behaviours. In Portugal, adolescents are initiating sexual activity at increasingly younger ages, making it relevant to characterise their knowledge about sexually transmitted diseases and prevention methods at an earlier stage of their development. Methods: A cross-sectional observational study was conducted involving the application of a questionnaire to 750 ninth-grade students from Vila Nova de Gaia, Porto, Portugal. The questionnaire covered topics such as perceptions of sexuality, knowledge of sexuality and STIs, methods of transmission prevention, and sources of information. Results: The mean age was 14.4 years, with 19.9% reporting having already initiated sexual activity. Overall, the knowledge about sexually transmitted infections was low, with a score of 7.08 out of a maximum score of 18. Condoms and immunisation were well-recognised preventive measures, but many misconceptions persisted. Better knowledge is associated with better attitudes regarding the likelihood of having sexual intercourse. Conclusions: This study reveals adolescents’ limited knowledge about sexually transmitted infections, misconceptions about prevention, and reliance on peers and the internet over trusted sources, highlighting the need for comprehensive sexual education in middle school.

Just In Time! Assessment of Internal Medicine Resident Point of Care Ultrasound (POCUS) Attitudes and Behaviors After Spaced Intervention at Two Residency Programs

Point of care ultrasound (POCUS) is a complex psychomotor skill that requires scaffolded support for skill acquisition. However, the effect of spaced curricular elements on learner POCUS behaviors are not clearly understood. Using a multi-site observational cross-sectional survey study, we measured resident baseline POCUS use, behaviors, and attitudes and then implemented POCUS workflow and just-in-time POCUS curricula during internal medicine resident ward rotations and assessed changes. Self-reported personal and team POCUS use and documentation habits all improved between baseline and the just-in-time teaching. Personal POCUS use correlated with team POCUS use (ρ=0.431; p&lt;0.001) and co-resident POCUS use (ρ=0.242; p=0.035). Attending POCUS use correlated with team POCUS use (ρ=0.523; p&lt; 0.001), but not personal use. Overall, we found moderate, but statistically significant, improvements in reported resident and team performance of POCUS and documentation habits, suggesting that just-in-time interventions may promote POCUS use. Co-learning also appears to be a key influencer for POCUS use.

Ultrasound assessment of muscle and fascia properties and the effects of spasticity and botulinum toxin injections on spastic muscles in chronic stroke survivors

Abstract Objective To objectively quantify changes in muscle properties in chronic stroke survivors and the effects of spasticity and botulinum toxin injections (BoNTi) on muscle properties using ultrasonography. Design In this cross-sectional observational study, 24 stroke subjects with history of BoNTi to biceps brachii muscles (BB) but without BoNTi to the triceps (TRI) were included. Results 12 subjects had spastic TRI, the other half did not. 20 subjects had spasticity in wrist flexors, and 11 subjects received BoNTi to the flexor carpii ulnaris (FCU). On average, a significant decrease in muscle thickness (16.5% loss in TRI), a thicker fascia with higher echo intensity were noted on muscles in the paretic limb. Percent muscle loss (PML) was significantly less (11.0%) in spastic TRI than in non-spastic TRI (22.1%). There was no statistically significant difference in muscle and fascia properties in spastic FCU with and without BoNTi. Spasticity did not correlate significantly with muscle loss, fascia thickness or echo intensity. Conclusion Our results provided evidence that muscles on the spastic-paretic side had less muscle mass, thicker fascia and greater echo intensity. Our results showed that spasticity helped maintain muscle mass, but failed to reveal additional muscle loss after botulinum toxin injection.

Knowledge, Attitude, and Practice of the General Population toward Pediatric Obstructive Sleep Apnea in Al-Baha Region, Saudi Arabia: A Cross-sectional Study

Abstract Context: Obstructive sleep apnea syndrome in children is characterized by partial or complete upper airway obstruction during sleep, leading to disrupted breathing and altered sleep patterns. Prompt diagnosis and intervention are crucial for preventing severe health complications. Aim: The aim of the study was to evaluate the knowledge, attitudes, and practices related to pediatric OSA among residents of the Al-Baha region, Saudi Arabia, and explore associations with sociodemographic factors to improve the health outcomes and quality of life of the affected children. Settings and Design: The study design was an observational cross-sectional study. Subjects and Methods: From the general public in the Al-Baha region, 413 participants were recruited through an online self-administered questionnaire. Data were collected between May 4 and June 5, 2024. Statistical Analysis Used: Descriptive statistics, frequency distributions, and Chi-square test. Results: The majority of participants were predominantly female (66.3%) and aged 18–30 years (61%). Most participants were single and held a bachelor’s degree. An adequate level of knowledge about OSA was demonstrated by 64% of the participants, 78% exhibited a positive attitude, and 62% showed an adequate practice level. Young adults and females had the highest levels of knowledge and positive attitudes, with females also displaying better practice habits than males. Participants with 1–3 children demonstrated better practice levels than those with more children. Conclusion: Adequate awareness of pediatric OSA was demonstrated in the Al-Baha region, particularly among young adults and females. Positive attitudes and effective practices are influenced by education and profession. While current awareness efforts are effective, targeted interventions can further improve knowledge and practice.

Housing conditions and COVID-19 in Barcelona: do they change by gender?

Evidence has linked poor housing conditions to negative health outcomes. However, in urban contexts characterized by social vulnerability and population-level inequalities, the gender perspective is often overlooked, despite evidence showing that housing conditions impact men and women differently in terms of health. This study aimed to describe the association between housing conditions and the prevalence of COVID-19 among men and women in Barcelona, Spain. An observational cross-sectional study was conducted using the 2021 Barcelona Health Survey. The study population consisted of non-institutionalized residents over 14 years of age in Barcelona. The survey was administered to a sample of 3,545 participants during the COVID-19 pandemic, between February 2021 and February 2022. Crude and adjusted prevalence ratios of COVID-19 (aPR), along with 95% confidence intervals (95% CI), were estimated using multivariate Poisson regression models with robust variance. The analysis was stratified by gender. A significant gradient was observed across age groups for both men and women, with higher COVID-19 prevalence in younger categories. The prevalence was notably higher among individuals born in low-income countries, particularly for women (aPR 1.62). We also identified a significant association between housing conditions, vulnerability factors, and COVID-19 prevalence in both men and women. Living with four or more cohabitants was associated with higher prevalence (aPR 1.96 for women and 1.89 for men), as was the presence of dampness in the home (aPR 1.34 for women and 1.27 for men). Additionally, energy poverty was significantly associated with higher COVID-19 prevalence in women (aPR 1.36), but not in men. This study highlights the association between housing conditions and COVID-19 in Barcelona, with a pronounced impact on young people, women from low-income countries, and women experiencing energy poverty.

Potential Prognostic Protein Biomarkers in Tears From Noninfectious Uveitis Patients Under Biologic Treatment as a Prelude to Personalized Medicine.

Adalimumab (ADA) is a systemic biological treatment option approved for the treatment of noninfectious uveitis (NIU); however, up to 40% of patients do not respond to the drug, either in a primary or secondary manner. Here, we evaluated the proteomic profile of patients with NIU who fail to ADA to identify proteins implicated in intraocular inflammation, as well as potential biomarkers for treatment response and novel therapeutic targets. Cross-sectional observational study of patients with NIU under ADA treatment for six or more months. Tears were collected with microcapillary tubes and protein analyzed by data-independent acquisition/sequential window acquisition of all theoretical mass spectra. Differentially expressed proteins (DEPs) were defined based on the fold change between their expression in nonresponders (NR) and responders (R). Protein network and gene ontology analysis were performed. The χ2 test for trend and receiver operating characteristic (ROC) curves were used to evaluate potential biomarkers of treatment response. Twenty-nine DEPs, 14 upregulated and 15 downregulated, were detected in NR. These proteins were mainly related to enhanced neutrophil effector functions and redox imbalance. ROC analysis identified defensin-1,3 (DEF-1,3), biotinidase, and ATP-binding cassette transporter A1 as potential biomarkers for treatment response. This is the first study on a clinical cohort of patients with noninfectious uveitis that identifies tear proteins related to neutrophil hyperactivation as drivers of the persistent intraocular inflammation observed in NR to ADA and provides evidence that targeting interleukin 6, Janus kinases, or the complement cascade could be potential alternative therapeutic strategies in these patients. Our results indicate the potential of high-throughput proteomics to provide insights into the underlying pathological mechanisms of persistent intraocular inflammation observed in patients who do not adequately respond to anti-TNF treatment and the value of tear proteomics as a tool for personalized medicine.

Anesthesia in Obese Patients and Complications

Background: Almost all ages and socioeconomic categories are affected by the complex illness known as obesity, which has major social and psychological ramifications. Global obesity rates have reached epidemic proportions and obesity plays a significant role in the burden of chronic illnesses and disabilities worldwide. The aim of the study was to assess the Anesthesia in obese patient and its Complications in a tertiary care hospital. Materials and mathods: This cross-sectional observational study was carried out in the Department of Anesthesiology, Bangabandhu Memorial Hospital (BBMH) from July 2020 to June 2022.Total sample size was 200. Adult in-patients who had undergone non-cardiac surgery and were older than 18 with a BMI greater than 30 kg/m2 met the inclusion criteria. Pregnancy, ambulatory surgery and missing or insufficient data on the desired outcomes were the exclusion criteria. Results: Mean age ±SD was 32 ± 0.9 years. About 55% of the patients were female and 45% were male. Regarding ASA classification 53.5% had 2, 45.5% had 3 and 1.0% had 4 score. Regarding coexisting disease 42.5% had hypertension, 14% had dyslipidemia, 18% had DM type-2 and 7.5% had obstructive sleep apnea. Here, type of anesthesia was 55% general anesthesia, 6% normal mask ventilation, 25% regional anesthesia, 4% total intravenous anesthesia and 10% LMA (Laryngeal Mask Airway). Regarding complication 4.5% was Reintubation, 5.5 %Pneumonia, 7.5% Upper airway obstruction, 0.5% Delay emergence respectively. 2.5% Urinary retention, 5% Oliguria, 2% Wound infection. 0.5% myocardial infarction and 0.5% Cardiac arrest occurred and no death occur inpatient respectively. Conclusion: Obesity has long been seen from a surgical standpoint as a risk factor for unfavorable post-surgical outcomes. Patients who are morbidly obese may experience respiratory adverse effects following surgery as a result of physiological disruption. The undesirable effects range depending on the surgical population. IAHS Medical Journal Vol 7(1), June 2024; 97-101

Agreement of intraocular pressure measurement by scleral Schiotz and Goldmann applanation tonometer.

In this cross-sectional observational study, IOP was measured by GAT on the cornea and Schiotz tonometer on the temporal sclera. Axial length and central corneal thickness (CCT) were noted. IOP was then estimated from SS IOP as eGAT using a predictive formula. Agreement of IOP corrected for CCT (cGAT) with eGAT and SS IOP were assessed. The effects of age, axial length, refraction, CCT, gender, and ocular and systemic comorbidity on measured IOP were also assessed. The study included 155 patients with a mean age of 54.27 ± 10.02 years. Mean IOP measured by GAT and scleral Schiotz were 16.58 ± 2.76mm Hg and 16.10 ± 2.96mm Hg, respectively. The mean IOP by cGAT and eGAT were 16.70 ± 2.80mm Hg and 17.07 ± 3.10mm Hg, respectively. Both eGAT & SS IOP had good agreement with cGAT on the Bland-Altmann plot (p = 0.96 & 0.51, respectively). Further, SS IOP showed good agreement even with GAT IOP (p = 0.78). Age, axial length, refraction, central corneal thickness, gender, and ocular and systemic comorbidity did not show significant correlation with IOP measurement. Estimated GAT IOP showed good agreement with measured GAT values. SS IOP also agreed well with GAT IOP. Clinical significance IOP measurement on the sclera using Schiotz can be used as an alternative to GAT.

OGC SO05 - Prevalence of Malabsorption and Impact on Quality of Life After Oesophago-Gastric Cancer Surgery

Abstract Background Recent Cancer Research UK data highlights a concerning rise in oesophago-gastric cancers, with 9,200 new cases of oesophageal cancer cases and 7,000 new cases of gastric cancer annually, ranking them the 13th and 17th most prevalent cancers, respectively. Surgery offers potential cure, but survival rates remain modest. Procedures include oesophagectomy and gastrectomy with Roux-en-Y reconstruction. Patients frequently experience nutrition-impact symptoms (NIS) associated with malabsorption post-surgery, however limited data exits on how this malabsorption affects their quality of life (QoL). This study aimed to investigate the prevalence of malabsorption and its correlation with QoL following oesophago-gastric cancer surgery. Method A cross-sectional cohort observational study was conducted on 98 cancer-free patients aged 18 or older following oesophagectomy (57%, including 1% with colonic interposition), subtotal gastrectomy (21.4%), or total gastrectomy (20.4%) with curative intent at the Northern Oesophago-Gastric Unit in Newcastle Upon Tyne from January 2013 to December 2023. Data collection utilised a modified Gastrointestinal Symptom Rating Scale (mGSRS) and QoL questionnaire distributed via post or email. Participants assessed their QoL on a self-reported Likert-scale (0-10) for their own subjective QoL perception. SPSS statistical software was employed to explore correlations between post-surgery malabsorption and QoL outcomes within this patient cohort. Results Post-surgery, 44.3% of patients encountered weight management challenges, notably within the first year. Malabsorption was prevalent in 69.9% of patients, with common symptoms such as flatulence and reduced appetite. Steatorrhoea, experienced by 47.3% of patients, also commonly caused flatulence and urgent bowel movements. NIS prevalence varied among surgical procedures, with 64.1% post-oesophagectomy and 78% post-gastrectomy, particularly after total gastrectomy. Pancreatic enzyme replacement therapy remained underused at 9.4%. Malabsorption strongly correlated with reduced QoL scores (r=-0.583, p&amp;lt;0.001), regardless of the time elapsed since surgery. Patients with steatorrhoea reported significantly lower QoL scores compared to those without (MD:-1.874, 95% CI, p&amp;lt;0.001). Conclusion The study highlights a significant prevalence of malabsorption and impaired QoL among patients following oesophago-gastric surgery, particularly notable in those experiencing steatorrhoea. Despite medical advancements, these issues often go unrecognized. The multifaceted nature of NIS and their impact on QoL necessitate a multidisciplinary approach involving gastroenterologists, dietitians, and other healthcare professionals. This collaborative effort aims to identify underlying factors contributing to malabsorption, provide consistent dietetics support, and manage symptoms effectively throughout the patient's recovery. Standardised guidelines are essential for ensuring comprehensive care and addressing both physical and psychosocial aspects, thereby enhancing overall postoperative QoL and long-term health outcomes.

PREVALENCE, Characteristics, and Awareness of Chronic Kidney Disease in Croatia: The EH-UH 2 Study

Background. National surveys have reported variable prevalence of chronic kidney disease (CKD), due to differences in the characteristics of the population, study design, equations used for the estimated glomerular filtration rate (eGFR), and definitions. The EH-UH 2 survey is the first study evaluating CKD prevalence, characteristics, and awareness in Croatia. Methods. This was a cross-sectional nationwide observational study designed to assess the prevalence of CKD and cardio–kidney–metabolic risk factors in Croatia, which included 1765 randomly selected subjects. We estimated the prevalence of CKD by means of the albumin-to-creatinine ratio (ACR) and eGFR (CKD-EPI equation). Comorbidities and anthropometric and social factors related to the prevalence of CKD were analyzed, and the CV risk profile was evaluated. Results. The weighted prevalence of CKD (any stage), CKD stage ≥G3A A2, and CKD defined only as an eGFR &lt;60 mL/min/1.73 m2 were estimated at 17.1%, 9.8%, and 7.9%, respectively. The prevalence was higher in men than in women (11.8% vs. 7.9%; p &lt; 0.001). The weighted prevalence of an ACR &gt;30 mg/g was 15.1%. Older age, male gender, diabetes, ePWV, and uric acid were independently associated with CKD prevalence. The awareness of CKD was 9.5%. Persons unaware of CKD were older with lower income, less education, more frequent diabetes, hypertension (less frequently controlled), and milder renal impairment. Conclusions. In Croatia, the estimated prevalence of CKD is high, being presented more frequently in men than in women. CKD patients have an unfavorable CV risk profile. The awareness of CKD is very low, reflecting poor health literacy in the general population but also in health-care workers.

Descriptive study on the overload of the main caregiver of cancer patients with tumour asthenia in Salamanca.

The incidence of oncology patients is increasing due to the ageing of the population and advances in research leading to early diagnoses. This has resulted in an increase in the care required for patients at all stages of their illness. To describe the current situation of the overload of informal caregivers of cancer patients with tumour asthenia belonging to the Medical Oncology Service of the University Health Care Complex of Salamanca and the Palliative Care Unit of the Hospital de los Montalvos, we employed the following. This is a cross-sectional descriptive observational study conducted at the Complejo Asistencial Universitario de Salamanca and the Palliative Care Unit of the Hospital de los Montalvos from February to May 2023. The study involved 75 informal caregivers of oncology patients with tumour asthenia. Data was collected through interviews, which included sociodemographic information and measurement scales. The study employed the Barthel Scale, PERFORM questionnaire, and Reduced Zarit Caregiver Overload Scale to assess the informal caregivers' ability to care for cancer patients with tumour asthenia. Of the caregivers, 58.7% were female, and the mean age was 60.0 years (± 14.10). Over half (50.7%) of the caregivers experienced high levels of overload, making it impossible to care for the patient. Among patients with tumour asthenia, 37.3% were totally dependent, and 8.0% were moderately dependent. Of these caregivers, 58.7% had no prior caregiving experience, 80.7% had no training, and 77.3% never received help in caring for the patient. In the Medical Oncology service of the Complejo Asistencial Universitario de Salamanca (CAUSA) and the Palliative Care Unit of the Hospital de los Montalvos, over one third of caregivers of oncology patients with tumour asthenia experienced caregiver overload. Variables such as the patient's age, the caregiver's age, the number of care hours, and the willingness to seek help can influence the perception of overload. This can worsen the effective care of the patient. It is important to consider these factors when providing care.

Anatomical Measurements of the Malar Bone for Safe Zygomatic Implant Placement: A Study on Donated Bodies

Background: The malar bone provides an anchorage point for zygomatic implants, avoiding invasive reconstructive surgeries in the fixed rehabilitation of fully edentulous and severely atrophic maxillae. The limited bone volume, however, requires precise implant placement to prevent complications related to nearby anatomical structures. This observational cross-sectional study aims to measure the malar and zygomatic arch bones and their distances from critical anatomical landmarks to guide surgeons in safe zygomatic implant placement. Methods: Dissections were performed bilaterally on 29 heads from human donated bodies in a cross-sectional observational study. Key landmarks evaluated include the infraorbital foramen (IF), pyriform nasal aperture (PNA), infraorbital margin (IM), zygomaticofacial foramen (ZFF), anterior end (A), and the most protruding point of the zygomatic arch (B). Measurements included IF-PNA, IF-IM, IF-ZFF, ZFF-IM, A-B, and orbital floor depth (OFD). Results: Significant findings showed IF-PNA was greater in males (18.66 ± 2.63 mm, p = 0.001), and IF-ZFF varied between sides (26.72 ± 8.7 mm, p = 0.002). ZFF-IM was larger in males (7.43 ± 2.09 mm, p &lt; 0.001). Heights and thicknesses were also assessed, with significant side differences observed. Conclusions: These findings underscore the importance of understanding precise anatomical distances for successful implant placement. The study provides essential data to enhance surgical planning and training, ensuring safer procedures and minimizing the risk of complications.

Retention of Cardiorespiratory Anatomy Knowledge Among Universitas Ailangga Medical Students With History of COVID-19

Cardiorespiratory anatomy is fundamental knowledge for doctors. However, knowledge retention in medical students decreases over time. Retention is a reflection of memory ability and is affected by many factors, such as COVID-19 infection. COVID-19 is a disease caused by Sars-CoV-2 and has been declared as a pandemic since March 11th 2020. During the pandemic, cardiorespiratory anatomy tests were held in the 1st semester and 4th semester. The objective of this research was to measure the retention difference between students who had suffered from COVID-19 in that period and the ones without a history of COVID-19. This research was a cross-sectional descriptive analytics observational study involving 59 medical students at Universitas Airlangga, Indonesia. It was known that 19 students had suffered from COVID-19, while the other 40 had not. The average score of overall students experienced a significant decrease from 1st semester to 4th semester (p=0.000), both for students who had (p=0.023) and had not suffered from COVID-19 (p=0.001). However, the 1st semester and 4th semester cardiorespiratory anatomy scores of students with a history of COVID-19 were lower than students without a history of COVID-19. Besides scores, the cardiorespiratory anatomy knowledge retention of students who had suffered from COVID-19 (M=86.72%) was also lower than students who had not (M=86.95%). Nevertheless, the retention difference between those two groups of students was not significant (p=0.703).