Search Results (27)

End-stage kidney disease (ESKD) is a growing public health concern in Oman, with an increasing number of adults requiring hemodialysis and facing complex dietary restrictions. Adequate nutrition knowledge and nutrition literacy are essential for effective dietary self-management, yet their relationship with dietary adherence in the Omani hemodialysis population remains underexplored. To determine the level of dialysis-specific nutrition literacy among Omani adults with end-stage kidney disease undergoing hemodialysis and to identify socio-demographic and clinical factors that predict acceptable nutrition literacy in this population. A cross-sectional study was conducted among 140 adults with ESKD receiving hemodialysis in Oman. Data were collected using a structured, self-administered questionnaire comprising socio-demographic and clinical items, the Dialysis-Specific Nutrition Literacy Scale (DSNLS), the Dialysis-Related Diet Knowledge Questionnaire (DDKQ), and adherence/health-belief subscales (perceived benefits, barriers, seriousness, susceptibility, and self-efficacy). Descriptive statistics summarized sample characteristics and scale scores. Correlation analyses assessed relationships between nutrition literacy, diet knowledge, and adherence-related perceptions. Multiple logistic regression identified independent predictors of acceptable nutrition literacy. Participants had a mean age of 48.19 years and a mean dialysis duration of 5.46 years. Overall, 60.7% had acceptable dialysis-specific nutrition literacy and 39.3% had limited literacy. Dialysis-related diet knowledge was low in 10.7%, moderate in 46.4%, and high in 42.9% of participants. Perceived benefits of dietary adherence were high, whereas perceived barriers, seriousness, and susceptibility were moderate and self-efficacy was relatively low. Nutrition literacy was positively correlated with perceived benefits, seriousness, susceptibility, and self-efficacy, while diet knowledge showed weaker associations with these beliefs. In the logistic regression model, living in the city (OR = 0.17, p = 0.01) and having diabetes mellitus as a comorbidity (OR = 0.17, p = 0.01) were associated with lower odds of acceptable nutrition literacy, whereas higher hemoglobin levels (OR = 1.51, p = 0.04) and self-rated “very good” overall health (OR = 5.80, p = 0.03) were associated with higher odds. Most Omani adults on hemodialysis demonstrated acceptable nutrition literacy and at least moderate renal-diet knowledge, but a substantial subgroup had limited literacy and low self-efficacy for dietary adherence. Nutrition literacy was more strongly linked to adherence-related beliefs than factual knowledge alone and was influenced by place of residence, comorbid diabetes, hemoglobin level, and perceived health. These findings highlight the need for culturally tailored, literacy-sensitive nutrition education in Omani dialysis units, with particular attention to urban patients and those with diabetes, to strengthen self-efficacy, address perceived barriers, and ultimately improve dietary adherence and clinical outcomes. Full article

Background: Accurate sex estimation from skeletal remains is essential in forensic identification, yet population-specific reference data for cervical vertebrae, particularly the first cervical vertebra (C1), are limited. This lack of data compromises the accuracy of sex estimation in forensic contexts where primary skeletal elements such as skull and pelvis are unavailable. Geometric morphometric (GM) analysis offers a robust alternative by quantifying shape variation independent of size, enabling precise assessment of morphological differences that conventional linear measurements may overlook. Objective: This study aimed to investigate the utility of C1 vertebra morphology for sex estimation among Omani adults using two-dimensional geometric morphometrics. Methods: A total of 320 lateral cervical radiographs (160 males, 160 females) were retrospectively collected from Sultan Qaboos University Hospital. Six anatomical landmarks on the atlas were digitized using TPSDig2, and shape analyses were performed using MorphoJ software. Statistical methods included Principal Component Analysis (PCA), Procrustes ANOVA, Canonical Variate Analysis (CVA), and Discriminant Function Analysis (DFA). Intra- and inter-observer reliability was also assessed. Results: While centroid size did not significantly differ between sexes (p = 0.2432), shape analysis revealed statistically significant sexual dimorphism (p = 0.0457). DFA correctly classified 77.19% of individuals by sex, with a cross-validated accuracy of 73.44%. Shape variation was most pronounced in the posterior tubercle and superior facets of the atlas. Conclusions: Two-dimensional geometric morphometric analysis of the first cervical vertebra (C1) reliably captures sexual dimorphism in the Omani population, providing a population-specific reference that enhances the accuracy and objectivity of forensic sex estimation. Full article

Background: The distance and angle between the superior mesenteric artery (SMA) and abdominal aorta play a role in the etiology of SMA syndrome. Retroperitoneal fat has been reported to affect both the distance and angle. Very few studies have reported the normal range of these measurements. The present study aimed to evaluate the reference values of the aortomesenteric angle (AMA) and aortomesenteric distance (AMD) in asymptomatic patients, as well as to determine the influence of age, sex, and anthropometric variables on these values. Methods: A retrospective cross-sectional study was conducted at Sultan Qaboos University Hospital. Computed tomography angiography scans of the abdomen from 141 Omani adult patients (aged ≥18 years) were included in the study. The morphometric data of the AMA and AMD were measured at the third part of the duodenum using sagittal and axial multiplanar reconstruction of CTA images. Patient data, including age, sex, height, weight, and BMI, were collected from the medical records. Statistical analyses included the Mann–Whitney U, Kruskal–Wallis H and Jonckheere–Terpstra J-T tests with significance set at p < 0.05. Results: The mean AMA was 57.16 ± 22.06°, and the mean AMD was 21.35 ± 10.25 mm. The AMD varied significantly across age groups (H = 17.29, p < 0.001) and showed a positive trend with increasing age (p = 0.001). Both AMA (p = 0.001) and AMD (p < 0.001) differed significantly across BMI categories, with significant increasing trends (p = 0.033 and p ≤ 0.001, respectively). No statistically significant differences were observed between sexes and study parameters (p > 0.05). Conclusions: The present study demonstrates that the reference values of the AMA and AMD are within the range of those reported in other populations. The variations in these values with BMI and age underscore the importance of individualized imaging interpretation and preoperative planning. The reported baseline data may enhance diagnostic accuracy and assist with surgical planning and radiological evaluation of suspected SMA syndrome. Full article

Background: Myeloproliferative neoplasms (MPNs)—including primary myelofibrosis (PMF), polycythemia vera (PV), and essential thrombocythemia (ET)—are clonal stem-cell disorders driven by JAK–STAT pathway activation within an inflammatory microenvironment. Ruxolitinib (RUX), a JAK1/2 inhibitor, improves splenomegaly and symptom burden in myelofibrosis and serves as second-line therapy in hydroxyurea-resistant/intolerant PV. However, real-world data from Middle Eastern populations remains scarce. This study evaluates the effectiveness, safety, and dosing practices of RUX in a heterogeneous Omani MPN cohort. Methods: Electronic records were reviewed for adults diagnosed with MF, PV, or ET who received RUX at Sultan Qaboos University Hospital or the National Hematology and BMT Center between 2018 and 2025. Only patients with at least six months of follow-up were included. Clinical variables, laboratory results, dosing information, and data on treatment responses and toxicities were extracted. Outcomes focused on spleen size changes, symptom improvement, hematologic responses, adverse events, and reasons for treatment discontinuation. Results: Twenty-eight patients were included (71% PMF; mean age 52.6 years). The median time from diagnosis to RUX initiation was 28 months. Among MF patients, mean spleen size decreased by 35% (p = 0.003); 28% achieved ≥35% reduction. Symptomatic improvement was reported by 60%. LDH levels remained unchanged. PV patients showed spleen control in 75% and symptom benefit in all cases, while ET responses were limited. Cytopenias (21%) and infections (11%) were the most common toxicities; discontinuation occurred in 8/28 of patients, and two patients died while on therapy. Initial dosing was frequently inappropriate, particularly underdosing in MF and overdosing in PV. Conclusions: RUX provided meaningful spleen and symptom improvement in MF and PV; however, toxicity, delayed initiation, and inconsistent dosing practices limited overall outcomes. Enhanced guideline-based dosing, proactive toxicity management, and structured multidisciplinary follow-up are essential to optimize RUX use in regional MPN practice. Full article

Background and Objectives: Frontal recess cells (FRCs) are key anatomical variants influencing frontal sinus drainage and disease. The International Frontal Sinus Anatomy Classification (IFAC) provides a standardized system for their identification. The baseline data on FRC prevalence and its association with sinusitis in Middle Eastern populations remain limited. This study aimed to assess the prevalence, laterality, and clinical relevance of FRCs in an adult Omani population using IFAC criteria. Materials and Methods: Computed tomography (CT) scans of 488 sides from 244 adult Omani patients were retrospectively reviewed to identify the FRCs according to IFAC. A total of 123 patients were found to have sinusitis: bilateral in 37 patients, right-sided in 38 patients, and left-sided in 48 patients. The prevalence of FRCs, along with their laterality and gender differences, was evaluated. Furthermore, the association between FRCs and sinusitis was analyzed using a chi-square test, followed by multivariable logistic regression analysis. Results: Among overall subjects (244 patients; 488 sides), agger nasi cells (79.5%, n = 388) and supra bulla cells (64.1%, n = 313) were the most prevalent cell types, whereas frontal septal cells (8.8%, n = 43) were the least common. Among study subjects (n = 244), laterality differences in FRC frequency were observed in the frontal septal cells, with a higher frequency of cells on the right side (p = 0.01), while no significant differences were found in other cell types. The presence of supra agger frontal cells (OR = 1.544, 95% CI: 1.02–2.23, p = 0.03) was positively correlated with sinusitis, while the presence of supra bulla cells was inversely associated with frontal sinusitis (OR = 0.61, 95% CI: 0.41–0.93, p = 0.01). The presence of FRC type was not significantly associated with the degree of sinusitis (p > 0.05). Significant gender differences were observed in supra orbital ethmoid cells (p = 0.01), with a male predominance. Conclusions: This study provides baseline data on the prevalence of FRCs in the Omani population. The presence of supra agger frontal cells appears to be associated with frontal sinusitis. No statistically significant gender- or laterality-associated differences were observed in most FRC types. Preoperative identification of supra agger frontal cells may facilitate effective surgical planning, particularly for endoscopic sinus surgery. Full article

Background: Recurrent pregnancy loss (RPL) and infertility are associated with significant psychological morbidity, including stress, anxiety, and depression. While these impacts are well-documented globally, their prevalence and severity in the Omani population remain unexplored. This study investigates the mental health outcomes of Omani women with RPL and infertility compared to fertile controls. Objectives: The objectives of this study are to assess the prevalence of stress, anxiety, and depression in women with recurrent pregnancy loss (RPL) and infertility and compare these rates to women with no fertility concerns in an Omani population. Design: This is a prospective, cross-sectional study. Setting: This study’s setting consisted of Sultan Qaboos University Hospital and Royal Hospital in Muscat, Oman. Participants: This study included 111 women with RPL, 131 women with infertility, and 210 antenatal controls with no fertility issues. Interventions: No clinical interventions were administered as this was an observational study. Participants completed validated psychological assessments (DASS-42 and BDI-II). Primary and secondary outcome measures: Primary outcomes were the prevalence rates of stress, anxiety, and depression assessed using DASS-42 and BDI-II. Secondary outcomes included sociodemographic correlates and risk factors Results: This study included 111 women in the RPL group, 131 in the infertility group, and 210 controls. Among RPL patients, 31% reported stress, ranging from mild to extremely severe, while 35.9% of infertility patients reported stress, compared to 17.1% in the control group (p = 0.003). Anxiety was present in 45% of RPL patients, 45.5% of infertility patients, and 28.1% of controls (p = 0.019). Depression, measured by DASS-42, was the most prevalent in the RPL group (34.2%), followed by the infertility group (33.6%) and controls (13.8%) (p < 0.001). Similar results were observed with BDI-II, with depression rates of 23.4% in the RPL group, 19.1% in the infertility group, and 7.6% in controls (p = 0.02). Conclusions: Women with RPL and infertility in Oman experience significantly higher levels of stress, anxiety, and depression compared to women without fertility concerns. This study did not assess the mental health of male partners, highlighting the need for further research on the psychological impact on both partners. Future studies should focus on developing psychological support interventions and evaluating their impact on patient outcomes. Full article

Background: Since the introduction of the hepatitis B virus (HBV) vaccination program in Oman in 1990, the HBV prevalence has markedly decreased. However, hepatitis D virus (HDV) infection, which is associated with progressive liver disease in patients with chronic HBV, remains understudied in the Omani population. This study aimed to estimate HDV’s seroprevalence, characterize its virological and clinical features, and identify factors associated with anti-HDV positivity among adult Omani patients with chronic HBV infection. Methods: We conducted a multicenter cross-sectional study in 2024 at two referral hospitals and two polyclinics in Oman. Adult Omani patients with chronic HBV (HBsAg-positive for >6 months) were enrolled. Demographic, clinical, laboratory, imaging, and elastography data were collected. The total anti-HDV antibodies were tested using an ELISA; HDV RNA was tested for anti-HDV-positive or equivocal results. Liver Fibrosis was assessed non-invasively through liver stiffness measurement (LSM) using vibration-controlled transient elastography (VCTE); FibroScan^® and clinical evaluation. Ridge (penalized) logistic regression identified predictors independently associated with anti-HDV positivity. Results: Among 639 patients (59.3% male; mean age of 46.6 ± 8.8 years), 36 patients were anti-HDV-positive, resulting in an HDV seroprevalence of 5.6% (95% CI: Exact 3.98–7.71; Wilson 4.10–7.70). Only one anti-HDV-positive patient had detectable HDV RNA, which became undetectable on follow-up without HDV treatment. The anti-HDV-positive patients were more frequently female and had a higher frequency of prior blood transfusions. In a penalized multivariable analysis, blood transfusions were independently associated with anti-HDV positivity (OR of 19.94), whereas male sex was associated with lower odds of being anti-HDV-positive (OR of 0.15). All the anti-HDV-positive patients had mild fibrosis (F0–F1). Conclusions: Our study demonstrated an anti-HDV prevalence of 5.63% among adult Omani patients with chronic HBV infection, while active viremia appeared to be rare. Blood transfusions were the main identified risk factor. Given the very low HDV viremia, targeted screening of higher-risk groups may be efficient. Full article

Background/Objectives: Human leukocyte antigens (HLAs) are major determinants of successful allogeneic hematopoietic stem cell transplantation (allo-HSCT). Their alleles are closely linked to outcomes, even in HLA-identical sibling donor (ISD) HSCT. This retrospective study analyzed the impact of HLA alleles on HLA-ISD HSCT outcomes in Omani patients. Methods: Data were collected for a heterogenous cohort of patients registered at the Sultan Qaboos University Hospital (SQUH), who underwent HLA-ISD HSCT from 2012 to 2022 (n = 153). HSCT outcomes, namely acute GVHD (aGVHD), chronic GVHD (cGVHD), chimerism status (complete or mixed) at 6 to 12 months after HSCT, neutrophil and platelet engraftment time, and patient five-year overall survival, were included. Low-resolution HLA-typing records were collected for five HLA loci: HLA-A, B, C, DRB1 and DQB1. GVHD and chimerism were analyzed by logistic regression analysis. Platelet and neutrophil engraftment times were assessed by Mann–Whitney tests. Patient overall survival was evaluated by the Kaplan–Meier model and Log-rank testing. At a 95% confidence interval, the p-value threshold was corrected using Bonferroni correction. Results: The incidence rates of aGVHD and cGVHD from all grades were 16% and 15%, respectively. Although no association between HLA alleles or any of the investigated outcomes was identified, survival curve analyses indicated a significant protective effect of HLA-DQB1*05 (p = 0.01). Patients carrying this allele had a better-estimated 5-year overall survival (90%) than did DQB1*05 negative patients (68%). Conclusions: This study suggests that HLA-DQB1*05 in the Omani population could have an impact on overall survival and might be a predictive biomarker. Further studies on a larger scale in other regional populations are needed to validate our findings and explore the underlying mechanism. Full article

The renal vessels are known to exhibit variations in different populations. The present retrospective cross-sectional study aimed to evaluate the radiological anatomy of renal arteries and veins in the Omani population. Computed tomography angiography scans were used to assess diameter, laterality, and vascular branching patterns in adults (aged ≥ 18 years) who underwent contrast-enhanced CT angiography of the abdomen and pelvis between 1 January 2023, and 31 December 2024. Normal CT angiograms of cases performed for vascular pathology screening, renal transplant workup, or trauma evaluation with normal findings were included. Measurements included diameters, anatomical course, and vascular variations in the renal arteries and veins. Accessory renal arteries were defined as any additional arteries arising from the aorta supplying the kidney, regardless of the entry point. The mean diameters of the right and left renal arteries were significantly higher in males (p = 0.020 and 0.026, respectively). The right renal vein was significantly larger in females (p = 0.020). Accessory renal arteries were identified in 24.22% (n = 31 patients), including two cases with unilateral double accessory arteries. The right and left RA diameters were 4.51 ± 0.91 mm and 4.95 ± 0.98 mm, respectively, both significantly larger in males (p = 0.020 and 0.026). Supernumerary renal veins were observed in 21 patients; retroaortic and circumaortic left RVs were found in seven and one case(s), respectively. Venous variations were present in 17.2% of the Omani subjects. The findings may enhance preoperative planning, especially in renal transplantation and urologic surgery, by increasing awareness of anatomical variants. This region-specific dataset supports the development of optimized imaging protocols and surgical strategies for better patient care. Full article

The Sultanate of Oman boasts remarkable biodiversity, exemplified by such species as the Arabian leopard (Panthera pardus nimr) and the Arabian oryx (Oryx leucoryx), national symbols that highlight the extensive conservation efforts required to protect the country’s natural heritage. During decades, Omani authorities have taken significant measures to safeguard wildlife and preserve the natural environment. A sanctuary dedicated to the reintroduction of the Arabian Oryx, after extinction in nature in 1972, was established in 1980 in the Al Wusta Governorate under the patronage of the Royal Diwan and currently administrated by the recently established Environment Authority. During the almost 40 years since the reintroduction and the creation of the sanctuary, the oryx population has grown slowly but constantly. In 2021, the sanctuary hosted 738 oryx, allowing the start of the reintroduction of the species into the natural environment. Small groups of animals were released into the wild in selected areas. No animal health adverse events were recorded, and mortality was generally due to injuries received as a consequence of fighting, in particular during mating season. Standard veterinary care, including control of internal and external parasites, was regularly provided. In some occasions, immunization against certain diseases, such as clostridial infections, pasteurellosis, or mycoplasmosis, was also applied. In 2023, an FMD outbreak in cattle reported in Dhofar, about 500 km from the Al Wusta sanctuary, motivated specific prophylactic actions to prevent the risk of diffusion to oryx. From December 2023 to January 2024, an immunization program was undertaken using an FMD vaccine against serotypes A, O, and SAT 1, mostly in male oryx, while pregnant oryx were avoided for abortion risk due to handling. The following year, in January 2025, a severe outbreak occurred in oryx herds held in the sanctuary. The rapid onset and the spread of clinical symptoms among animals (100% morbidity in the second day after the first appearance of signs in some individuals) were suggestive of a highly contagious disease. The animals suffered from severe depression and inappetence, rapidly followed by abundant salivation, erosions of the oral mucosa and tongue, and diarrhea, with a short course characterized by prostration and death of the animal in the most severe cases. Therapeutical attempts (administration of antibiotics and rehydration) were mostly ineffective. Laboratory investigations (ELISA and PCR) ruled out contagious bovine pleuropneumonia (CBPP), Johne’s disease and Peste des petits ruminants (PPR). Both serology and antigen detection showed positiveness to foot-and-mouth disease (FMD). Out of a total population of 669 present in the sanctuary at the beginning of the outbreak, 226 (33.78%) oryx died. Despite the vaccinal status, the 38.49% of dead animals resulted being vaccinated against FMD. Taking into account the incalculable value of the species, the outbreak represented a very dangerous event that risked wiping out the decades of conservation efforts. Therefore, all the available means, such as accrued biosecurity and adequate prophylaxis, should be implemented to prevent the recurrence of such health risks. The delicate equilibrium of wild fauna in Oman requires study and support for an effective protection, in line with the national plan “Vision 2040”, targeting the inclusion of the Sultanate within the 20 best virtuous countries for wildlife protection. Full article

Background and Aims: The majority of individuals with COVID-19 developed acute symptoms. Post-COVID-19 syndrome refers to the signs and symptoms of COVID-19 that persist for more than 12 weeks. The present study was conducted to estimate the prevalence and risk factors for post-COVID-19 syndrome in the Omani population. Methods: This is a cross-sectional study that was conducted at the University Hospital Center (UHC). All patients diagnosed with COVID-19 (through polymerase chain reaction PCR testing) between March 2020 and March 2022 were included. Eligible participants were interviewed through a phone call, informed about the study procedure, and invited to participate in the study. Results: The study enrolled 265 COVID-19 patients, of whom 156 (59.2%) were females and 204 (77.3%) had been vaccinated. The overall prevalence of post-COVID-19 syndrome was 48.5%. The most common symptom was fatigue (71, 26.9%), followed by joint pain (44, 16.7%). The other symptoms included loss of taste/smell (34, 12.9%), cough (32, 12.1%), palpitation (25, 9.5%), and hair loss (27, 10.2%). Unvaccinated patients showed a higher incidence of fatigue (p = 0.03) and loss of smell/taste (p = 0.01) on univariate analysis. Females were at high risk for the development of various symptoms, including fatigue, muscular pain, breathing difficulty, cough, chest pain, palpitation, headache, and hair loss. Multivariate analysis showed that female gender is a significant independent predictor (odds ratio: 3.1; p = 0.00) for the development of post-COVID-19 syndrome. Conclusions: The prevalence of post-COVID-19 syndrome among the Omani population was high, highlighting the need for targeted interventions to manage long-term symptoms in vulnerable groups. Full article

Background/Objectives: Pharmacogenomic screening plays a crucial role in optimizing chemotherapy outcomes and minimizing toxicity. Characterizing the baseline distribution of genetic variants in specific populations is essential to inform the prioritization of drug–gene combinations for clinical implementation. The objective of this study was to investigate the distribution of pharmacogenetic variants in 36 genes related to the fluoropyrimidine (FP) pathway among healthy Omani individuals, forming a foundation for future studies in cancer patients receiving FP-based chemotherapy. Methods: Ninety-eight healthy Omani participants aged ≥18 years were recruited at the Sultan Qaboos Comprehensive Cancer Care and Research Center. Whole-blood samples were collected, and genomic DNA was extracted. Targeted next-generation sequencing was performed using a custom Ion AmpliSeq panel covering coding exons and splice-site regions of 36 genes involved in FP metabolism and response. Results: A total of 999 variants were detected across the 36 genes, with 63.3% being heterozygous. The ABCC4 gene had the highest mutation frequency (76 mutations), while DHFR and SMUG1 had the lowest (<10 mutations). In DPYD, four functionally significant variants were found at frequencies ranging from 1 to 8.2% of the population. Missense mutations were also observed in MTHFR and UGT1A1. Three actionable variants in DPYD and MTHFR, associated with 5-fluorouracil and/or capecitabine response, were identified. Additionally, 27 novel single-nucleotide polymorphisms of unknown clinical significance were detected. Conclusions: This study reveals key pharmacogenetic variants in the Omani population, underscoring the importance of integrating pharmacogenomic testing into routine care to support safer, more personalized chemotherapy in the region. Full article

Background: Os trigonum (OT) is an accessory ossicle that develops from the failure of the secondary ossification center of the posterior talar process fusion. It is clinically significant due to its association with posterior ankle pain and impingement syndromes. Despite its tremendous clinical relevance, limited data exist on the frequency of OT in Middle Eastern populations. Objectives: This study aimed to determine the frequency, morphological variations, and dimensions of OT in Omani subjects using computed tomography (CT) imaging and to evaluate the sex and laterality differences in its occurrence. Methods: A retrospective cross-sectional study of 352 foot and ankle CT scans were conducted to assess the OT at Sultan Qaboos University Hospital. OT presence, dimensions, and classification along with patient demographics, including age and sex, were recorded. Descriptive statistical analysis and the chi-square test were employed to present the data. Results: The overall prevalence of OT was 10.2%, with a frequency of 11.2% on the left side and 8.9% on the right side. Type IIA was the most prevalent subtype in both feet (41.2% right, 44.4% left). The average minor-axis and macro-axis dimensions were 7.88 ± 2.998 mm and 10.76 ± 4.280 mm on the right side, while they were 8.06 ± 2.600 mm and 11.50 ± 4.997 mm on the left side. No statistically significant sex or laterality differences were observed with regard to the OT frequency (p > 0.05). Conclusions: This study provides the first detailed evaluation of OT in the Omani population, highlighting its frequency and morphological variability. These findings emphasize the importance of CT imaging in identifying OT and guiding clinical management. Future studies should explore OT’s clinical correlations to enhance its diagnostic and therapeutic implications. Full article

Background: The advent of direct-acting antiviral (DAA) therapy has revolutionized the treatment landscape of the hepatitis C virus (HCV) infection. This study aimed to provide a comprehensive research study of the real-world effectiveness and safety of DAA treatment, representing the first study conducted in the Omani population. Methods: A cross-sectional study was conducted including 375 HCV patients with different genotypes, treated using different DAA regimens, with or without ribavirin, between January 2012 and December 2020 at the Sultan Qaboos University Hospital and the medical city for military and security services, two tertiary hospitals in Muscat, Oman. The rate of sustained virologic response 12 weeks after completing the regimen (SVR-12) was analyzed as the primary outcome. Secondary outcomes included treatment safety and adverse events related to DAA therapy, as reported by patients and treating physicians. Results: A total of 375 patients were included in the study, with a mean age of 47.3 ± 15.4 years. Most were male (59.2%) and treatment-naïve (71.7%). The prevalence of liver cirrhosis was 19.7%, while 4.0% had hepatocellular carcinoma (HCC). The SVR-12 rate among treatment-naïve and treatment-experienced patients was 95.0% and 93.4%, respectively. Several parameters were associated with DAA treatment failure, including liver cirrhosis (p = 0.004) and active HCC (p = 0.009). Following SVR-12, significant improvements were observed in alanine transaminase, bilirubin, and albumin levels, Fibrosis-4 Index, and liver stiffness measurements compared to baseline (p <0.001 each). No significant adverse effects were reported. Conclusions: Based on our real-world experience, DAAs are highly effective in treating patients with HCV infection in Oman, with an excellent tolerability and safety profile. Full article

Introduction: PCOS, a common hormonal disorder in women of reproductive age, affects fertility and increases the risks of other diseases. Early detection, risk factor assessment, and intervention are crucial to prevent long-term complications. Materials and Methods: This study was conducted using a pre-validated questionnaire at two medical colleges in the UAE and Oman. The first study (UAE) results are already published. Here, we present the findings of the second study (Oman) and compare them. Results and Discussion: The prevalence of PCOS was 4.6% (n = 7) in Oman and 27.6% (n = 69) in the UAE using the NIH criteria. The most common symptoms were irregular periods, acne, and thinning of hair. Students showed acne as the most prevalent symptom of clinical hyperandrogenism. Omani students showed significantly more acne [70.1% (n = 108) vs. 41.6% (n = 104)], while Emirati students showed a higher prevalence of hirsutism [32% (n = 80) vs. 23.3% (n = 36)]. A higher number of students had irregular periods 30.8% (77/150) in the UAE, although the difference was not statistically significant. The prevalence of PCOS was significantly higher in Emirati medical students than in Omani students (p < 0.05). The prevalence was also lower among medical students in Oman compared to an unselected population, reported by a study that included all consecutive women between 12 and 45 years of age attending a hospital. An increased trend in unhealthy lifestyle practices was observed in the recent study. Obesity was a strong predictor of PCOS symptoms across the populations in both countries (p < 0.05). Conclusion: The prevalence of PCOS and clinical signs of hyperandrogenism vary significantly between countries in the MENA region. There is a need to identify specific risk factors associated with PCOS in different populations, explore the genetic basis, and undertake collaborative efforts among healthcare professionals from various disciplines to raise awareness about PCOS and its associated risks. Full article