Fecal Calprotectin and Organic Gastrointestinal Disease: A Systematic Review.

This review aimed to assess the diagnostic utility of fecal calprotectin (FCP) for identifying organic gastrointestinal disease (OGID) in patients undergoing colonoscopy for gastrointestinal discomfort or active progression of inflammatory bowel disease (IBD). Studies published between January 2013 and December 2022 evaluating the clinical efficacy of FCP for differentiating OGID against functional gastrointestinal disease (FGID) were identified using PubMed, Cochrane, and Scopus databases. Clinical diagnostic studies involving individuals with lower gastrointestinal symptoms; using FCP as a diagnostic biomarker either in primary, secondary, or tertiary healthcare centers conducted either prospectively or retrospectively using stool samples (index test), contrasting FCP with a reference test, such as colonoscopy, or endoscopy, and assessed using enzyme-linked immunosorbent assay were reviewed. The included studies were subjected to the revised Quality Assessment of Diagnostic Accuracy Studies for assessing the methodological quality by two independent authors. An initial literature search yielded 545 articles rendering 417 records after removing the duplicate records. After reading the abstracts and titles, 89 articles were eligible for full-text screening. The qualitative synthesis resulted in 20 articles. The efficient use of FCP for differentiating IBD from irritable bowel syndrome was investigated in 15 studies.Two of the included studies assessed the diagnostic ability of FCP to distinguish OGID from FGID, two studies utilized patients with ulcerative colitis, and one study involved patients with Crohn's disease. Overall study quality was high for 65% of studies,moderate for 25% of studies, and low for 10% of studies. The review outlined the diagnostic accuracy of non-invasive FCP assessment for OGID in various clinical scenarios and in individuals of various ages. FCP is used as a tool for screening and monitoring in clinical practice for determining the need of further comprehensive investigations, thereby reducing the redundant use of invasive techniques.

Prevalence and Determinants of Hoarseness in School-Aged Children.

Hoarseness in school-aged children may affect their educational achievement and interfere with their communication and social skills development. The global prevalence of hoarseness in school-aged children ranges between 6% and 23%. To the best of our knowledge, there is a scarcity of studies describing the prevalence or determinates of hoarseness in Saudi school-aged children. Our aim was to measure the prevalence of hoarseness among school-aged children and to identify its determinants. A cross-sectional questionnaire-based survey was used that included randomly selected primary and early childhood schools from private and governmental sectors in Saudi Arabia. The data were collected using a questionnaire which was self-completed by the children's parents and covered the following aspects: sociodemographic features, health and its related comorbidities about children and their families, attendance and performance in school, child's voice tone, past history of frequent crying during infancy, history of letter pronunciation problems and stuttering, the Reflux Symptom Index (RSI) and the Children's Voice Handicap Index-10 for parents (CVHI-10-P). Determinants of hoarseness were investigated using the SPSS software (version 20). The mean age of the study children (n = 428) was 9.05 years (SD = 2.15), and 69.40% of them were male. The rate of hoarseness in the participants was 7.5%. Hoarseness was significantly common in children with a history of excessive infancy crying (p = 0.006), letter pronunciation issues (especially 'R' and 'S'; p = 0.003), and stuttering (p = 0.004) and in those with a previous history of hoarseness (p = 0.023). In addition, having the symptoms of gastrointestinal reflux increased the risk of hoarseness by four times (OR = 4.77, 95% CI = 2.171, 10.51). In summary, hoarseness in children may be dangerously underestimated, as it may reflect the presence of speech problems, in addition to the presence of laryngopharyngeal reflux (LPR). Hoarseness was assumed on the basis of parental complaints. Therefore, further research with diagnoses based on a clinical assessment is needed to understand the magnitude of the hoarseness problem and its consequences in children.

Parallel Potentiometric and Capacitive Response in a Water-Gate Thin Film Transistor Biosensor at High Ionic Strength.

We show that an SnO2-based water-gate thin film transistor (WGTFT) biosensor responds to a waterborne analyte, the spike protein of the SARS-CoV-2 virus, by a parallel potentiometric and capacitive mechanism. We draw our conclusion from an analysis of transistor output characteristics, which avoids the known ambiguities of the common analysis based on transfer characteristics. Our findings contrast with reports on organic WGTFT biosensors claiming a purely capacitive response due to screening effects in high ionic strength electrolytes, but are consistent with prior work that clearly shows a potentiometric response even in strong electrolytes. We provide a detailed critique of prior WGTFT analysis and screening reasoning. Empirically, both potentiometric and capacitive responses can be modelled quantitatively by a Langmuir‒Freundlich (LF) law, which is mathematically equivalent to the Hill equation that is frequently used for biosensor response characteristics. However, potentiometric and capacitive model parameters disagree. Instead, the potentiometric response follows the Nikolsky-Eisenman law, treating the analyte 'RBD spike protein' as an ion carrying two elementary charges. These insights are uniquely possible thanks to the parallel presence of two response mechanisms, as well as their reliable delineation, as presented here.

Characteristics of Breast Masses of Female Patients Referred for Diagnostic Breast Ultrasound from a Saudi Primary Health Care Setting.

BACKGROUND: Breast masses are common among females presenting to primary health care (PHC) facilities. The family physician's role is crucial in detecting breast disease. Utilization of breast ultrasonography has been increasing recently as a diagnostic tool. OBJECTIVE: This study aims to determine the characteristics of masses detected on breast ultrasound, their associations with characteristics of females attending the PHC setting and explore the management of these cases by family physicians. METHODS: This registered based, cross-sectional study included 321 females who were referred for diagnostic breast ultrasound in the PHC center of the University hospital, Eastern province, Saudi Arabia (2017-2019). t-test, Chi-squared and Fisher's Exact tests were performed to assess associations between the presence of breast masses in the ultrasound and patients' characteristics. Moreover, to compare the breast masses in two groups of patients (< 40 years and ≥ 40 years) regarding their characteristics, ultrasound findings, and further management performed. P < 0.05 was considered statistically significant. RESULTS: Approximately 24% patients had a breast mass and 70.92% of cases were detected among females ≥ 40 years old. The odds of having a breast mass were highest among overweight, females complaining from a breast lump, and who had early menarche. Grand multiparous had lower odds of a breast mass. Females < 40 years old had higher rates of breastfeeding, increasing parity, and obesity than older females. Sonographic examined masses were larger in young females, and posterior enhancement of the mass was more reported in older. BI-RADs of the masses were not associated with the patient's age. CONCLUSION: Breast masses were prevalent among females who underwent breast ultrasound. The results support referral for investigation when a female complains of a breast lump. Family physicians have a vital role in encouraging protective behaviors from developing breast masses such as maintaining normal weight and breastfeeding.

What are the barriers and facilitators of volunteering among healthcare students during the COVID-19 pandemic? A Saudi-based cross-sectional study.

OBJECTIVES: The objectives of this study were to assess the volunteering of undergraduate health students and interns in the Ministry of Health (MOH) services in the Kingdom of Saudi Arabia (KSA) during the COVID-19 pandemic, its motivational factors and barriers, as well as their risk perception of COVID-19. DESIGN: A cross-sectional study. PARTICIPANTS: From 12 to 21 May 2020, an online survey was sent to all undergraduate health students and interns in the KSA. This included questions on demographics, volunteering status, risk perception of COVID-19, as well as motivations and barriers towards volunteering. RESULTS: In a convenience sample of 6016 students and interns across KSA, 1824 (30.31%) have volunteered with the MOH services during the COVID-19 pandemic. Volunteering was more likely among older participants, from the College of Medicine, those with self-perceived at risk of COVID-19 infection and those with self-perceived healthy participants. Females, those who did not think that students had moral duties to volunteer, those who were at risk of seasonal influenza and those with self-perceived at risk of hospitalisation from COVID-19 were less likely to volunteer. Patriotism, gaining experience, assisting when able and religious rewards all were reported as major motivators to volunteer. Non-volunteering participants reported that lack of interest, protocol and knowledge, as well as issues related to their personal health and transportation were the main barriers to volunteering. CONCLUSIONS: About one-third of undergraduate health students and interns volunteered during the first 2 months of the COVID-19 pandemic in KSA. Moral values were the most important motivations among volunteers. Efforts to encourage heath students and interns to volunteer and providing those with appropriate educational programmes are recommended.

Laparoscopic Management of Gallbladder Duplication: A Case Report.

Laparoscopic cholecystectomy has become one of the most commonly performed abdominal surgeries worldwide. Several anatomic variations and congenital malformations in the gallbladder and biliary anatomy have been described. We reported the case of a middle-aged woman who presented with jaundice and abdominal pain. Her laboratory investigations revealed an elevated bilirubin level (mainly the direct component). The patient showed an improvement in the clinical and laboratory parameters after conservative management. Then, the patient was prepared for a laparoscopic cholecystectomy which revealed a duplication of the gallbladder with two distinct cystic ducts draining independently to the common bile duct. The procedure was completed uneventfully. This type of gallbladder duplication is among the least common types. The case highlights the importance of having a meticulous intraoperative evaluation of the biliary anatomy to avoid potential complications and injuries.

Isolated Idiopathic Right Common Iliac Artery Aneurysm Presenting as Acute Appendicitis in a 9-Year-Old Girl: A Case Report and Literature Review.

The prevalence of iliac artery aneurysms is extremely rare in children. The most common etiologies for developing an aneurysm in children are infections, inflammatory diseases, and trauma. An idiopathic or congenital etiology is the least common cause in the pediatric population. We report a case of a 9-year-old girl with no previous history of trauma, intervention, or family history of vascular diseases who presented with a sudden severe right lower quadrant pain suggesting appendicitis. Upon examination, a large tender pulsatile mass was felt in the right lower quadrant. Ultrasound and computed tomography scans revealed a large right common iliac aneurysm. The aneurysm was noted to have a high risk of rupture due to the sudden symptomatic presentation and its large size. Therefore, the patient underwent an urgent operation, during which an aneurysmal repair was performed with an interposition graft. Postoperative ultrasound imaging showed a patent graft and no residual aneurysm. The patient has been followed up for two years, and no complications were found.