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1.
BMJ Lead ; 2024 Jul 17.
Article in English | MEDLINE | ID: mdl-39025486

ABSTRACT

INTRODUCTION: The increasing frequency of pandemics, demand for healthcare and costs of healthcare services require efficient health systems with integrated care via a command centre that ensures a centralised and coordinated approach to exercise effective leadership. DESCRIPTION: We present a case study using the conceptual framework of Franklin to describe the novel system-based engineering approach of the Saudi National Health Command Centre (NHCC) including its features and outcomes measured. DISCUSSION: The NHCC is structured into four departments and four zones with real-time data integration and visualisation on 88 dashboards. To empower leadership, it harnesses artificial intelligence affordances such as machine learning algorithms to enhance functionality, decision-making processes and overall performance. This allows for the rapid assessment of available resources and to monitor healthcare system efficiency at diverse levels of clinical and system indicators. Enhanced proactive capacity management has contributed to reducing lengths of stay, average supply chain lead time and surgery waiting list; early bending of the COVID-19 curve resulting in a low mortality rate; increasing bed capacity; deploying medical staff and mechanical ventilators rapidly; rolling out the COVID-19 vaccination programme and improving patient satisfaction. CONCLUSION: Integrating a healthcare system with a command centre provides healthcare leaders with the necessary infrastructure to create synergy between people, processes and technologies. This substantially improves both patient and service outcomes. It also allows for immediate care coordination and resource allocations and safeguards ease of access to care.

2.
Behav Sci (Basel) ; 14(7)2024 Jun 25.
Article in English | MEDLINE | ID: mdl-39062354

ABSTRACT

BACKGROUND: This study aimed to investigate the levels of anxiety, depression, and quality of life among parents of children with autism spectrum disorder. It also compared the difference in these levels between mothers and fathers. Additionally, it quantifies the association between parental anxiety, depression, and quality of life, with various sociodemographic factors. METHODS: This analytical, cross-sectional study was carried out between June and December 2022. An online questionnaire was completed by a sample of 394 parents of children with ASD (autism spectrum disorder) residing in Saudi Arabia. Three scales were used to assess depression, anxiety, and quality of life (QoL), respectively: Patient Health Questionnaire 9 (PHQ-9), Generalized Anxiety Disorder 7 (GAD-7), and World Health Organization Quality of Life-Brief Version (WHOQOL-BREF). RESULTS: Most parents (70.8%) were mothers with an average age of 39 years, typically ranging from 30 to 48 years. Parents' overall quality of life was 57.72 out of 100, indicating moderate satisfaction. Anxiety levels showed that 32% had mild, 17.8% moderate, and 14.7% severe anxiety. Similarly, depression levels revealed that 34.5% had minimal, 32.2% mild, and 18% moderate depression. Higher anxiety and depression scores were linked to a lower perceived QoL (quality of life). Moreover, the socioeconomic status index (SESi) was significantly and positively correlated with higher depression and lower quality of life. CONCLUSIONS: Autism Spectrum Disorder imposes a strain on parents of the autistic child. The responsibilities linked to the disability amplify the occurrence of depression and anxiety among parents, leading to a diminished quality of life.

3.
Saudi Dent J ; 36(4): 615-620, 2024 Apr.
Article in English | MEDLINE | ID: mdl-38690391

ABSTRACT

Objective: This study investigated the prevalence of maxillary labial frenum morphologies and attachment types and their associations with various patient-related clinical variables in a population of Saudi Arabian adults. Methods: This study comprehensively examined 100 participants of both genders to categorize frenum types and attachment sites. The following clinical variables were recorded: probing depth, clinical attachment loss, attached gingiva width, overjet, overbite, diastema width, central incisor condition, occlusion, previous orthodontic treatment, and the incidence of gummy smile. Results: The mean age was 32.6 years, and the average diastema width was 0.23 mm. The study found that the simple frenum type was the most common morphology (57 %), and gingival attachment was the most frequent attachment type (54 %). Simple frenum was significantly associated with class I occlusion (p = 0.018), and frenum with nichum was significantly associated with class II occlusion (p = 0.019). Females were more likely to exhibit simple frenum with nodule frenum than males (p = 0.042). Mucosal frenum attachment was significantly correlated with the absence of previous orthodontic treatment (p = 0.042). Conclusion: The study identified a relationship between the features of the maxillary labial frenum and occlusion as well as previous orthodontic treatment. Our findings suggest that understanding each patient's unique frenum features can lead to more effective and personalized dental care, thus improving patient satisfaction.

4.
J Family Community Med ; 31(2): 176-179, 2024.
Article in English | MEDLINE | ID: mdl-38800791

ABSTRACT

Multinodular goiter (MNG) is a chronic benign nodular enlargement of the thyroid gland. It presents as an anterior painless neck mass, potentially progressing to exert pressure on the trachea and esophagus and giving rise to compressive symptoms. MNG is a common thyroid gland disorder; however, retropharyngeal goiter is considered rare with few reported cases. We report the cases of two patients who presented to our institution with MNG with retropharyngeal extension: a 62-year-old female patient who presented with a progressive anterior neck mass with dilated neck veins; and a 49-year-old male who presented with a painless anterior neck mass. Both patients successfully underwent total thyroidectomy with an uneventful postoperative recovery. The clinical presentation of MNG with retropharyngeal extension varies with patients; hence, a high index of suspicion is of the utmost significance. While the retropharyngeal extension does not cause compressive symptoms, it should raise the suspicion of a large retrosternal component.

5.
Saudi Pharm J ; 32(2): 101929, 2024 Feb.
Article in English | MEDLINE | ID: mdl-38223205

ABSTRACT

Preterm labor is a growing health problem that causes newborn death, and safe and effective therapy is significantly needed. Arabin pessaries and progesterone are preventive and therapeutic approaches that can be applied to managing the short cervix; hence, reducing the risk of preterm labor. The main goal of current work is to fabricate a novel nanofiber formulation based on polycaprolactone (PCL) and loaded with progesterone to coat for Arabin pessaries to be used as dual preventive and therapeutic approaches for local vaginal delivery. Several important criteria were considered in this study to assess the prepared nanofibers (i.e.; nanofiber diameter, progesterone loading efficiency, progesterone release profiles and in vitro cytotoxicity assessment). The results showed a dimeter of 397 ± 88 nm, drug loading of 142 ± 3 µg/mg and encapsulation efficiency of 99 ± 2 % for the progesterone-loaded nanofibers. Approximately, 17 % of progesterone was released from the nanofibers after 90 days. The in vitro assessment showed that the application of progesterone is safe upon 24 and 48-hours incubation on HFF-1 cell line at concentrations ≤ 32 µg/mL and within 72-hours at a dose of ≤ 8 µg/mL. To conclude, the data recommended that progesterone-loaded nanofibers can coat the Arabin pessaries with the potential of being a safe and effective dual preventive and therapeutic tool for preterm labor.

6.
Cureus ; 15(10): e47235, 2023 Oct.
Article in English | MEDLINE | ID: mdl-38022010

ABSTRACT

INTRODUCTION: The pediatric population undergoes tracheostomy for a variety of reasons. For a child and their family, having a tracheostomy means learning a new way of life and facing several social, psychological, medical, and economic challenges. Our analysis of the literature indicates that this is the first study of its kind, using the Pediatric Tracheotomy Health Status Instrument (PTHSI) tool to assess the quality of life (QoL) following tracheostomy in pediatric patients and their caregivers in the Kingdom of Saudi Arabia (KSA). METHODS: This was a descriptive cross-sectional study for tracheostomized children's QoL evaluation. The medical records of the Maternity and Children Hospital, Dammam, KSA, were used to identify the patients and their caregivers. A higher score on the validated PTHSI indicated a better result. RESULTS: From a total of 56 patients, 24 were included in this study. Based on the PTHSI tool, the overall mean score was 93.3/150 (62.28%) and this indicated a good QoL score. Analysis of the correlation between the PTHSI score and other variables indicated no association between the total PTHSI score and the age or gender of the patient or the duration of the tracheostomy (p-value > 0.05). However, we found families of children with major medical comorbidities had lower scores (p-value = 0.03) and their QoL was affected much more than families of patients who did not have major medical comorbidities. CONCLUSION: Tracheostomy care for pediatric patients can significantly affect the QoL of patients and their families. Our findings using the validated PTHSI tool showed poorer QoL compared to other studies, suggesting the need for future home care training programs to support tracheostomized children and their families, particularly those with comorbidities, who tend to have lower QoL scores and require more organized support.

7.
Aesthet Surg J ; 44(1): NP51-NP59, 2023 Dec 14.
Article in English | MEDLINE | ID: mdl-37768715

ABSTRACT

BACKGROUND: The latissimus dorsi flap (LDF) is a classic and efficient technique for breast reconstruction. However, its use has recently diminished in surgical practice due to dorsal disadvantages and to the increased use of microsurgical techniques for breast reconstruction, such as the deep inferior epigastric artery perforator flap. OBJECTIVES: The aim of this study was to evaluate the safety and efficacy of managing dorsal problems such as asymmetry, irregularities, and dysesthesia by lipomodeling the back region during the associated surgery for breast reconstruction. METHODS: A series of 300 patients operated by the last author for dorsal lipomodeling to correct sequelae after harvesting the total LDF, between November 2012 and March 2019, was analyzed. RESULTS: The results show a very good improvement in the dorsal region in 6.7% of cases, good improvement in 86.7% cases, and fair improvement in 6.7% of cases. There was a good improvement in dorsal comfort in 90% of cases, a very good improvement in 6.66% of cases, and a fair improvement in 6.66% of cases. In 5% of cases 2 sessions were required to obtain a satisfactory result. No major complications were registered, and the only complication encountered were oil cysts in 2.6% of cases that were treated during consultation with percutaneous puncture. CONCLUSIONS: This study showed that lipomodeling in the back area after LDF harvesting is an efficient and safe technique that corrects secondary dorsal sequelae such as irregularities, asymmetry, sensitivity, and dysesthesia. This technique should increase the indications for LDF because it decreases donor site sequelae, which are some of the main drawbacks of the LDF approach.


Subject(s)
Breast Neoplasms , Mammaplasty , Superficial Back Muscles , Humans , Female , Paresthesia , Surgical Flaps , Mammaplasty/adverse effects , Mammaplasty/methods
8.
Saudi Pharm J ; 31(7): 1139-1148, 2023 Jul.
Article in English | MEDLINE | ID: mdl-37273265

ABSTRACT

The efficient delivery of small interfering RNA (siRNA) to the targeted cells significantly affects the regulation of the overexpressed proteins involved in the progression of several genetic diseases. SiRNA molecules in naked form suffer from low internalization across the cell membrane, high susceptibility to degradation by nuclease enzyme and low stability, which hinder their efficacy. Therefore, there is an urge to develop a delivery system that can protect siRNA from degradation and facilitate their uptake across the cell membrane. In this study, the cationic lipid (GL67) was exploited, in addition to DC-Chol and DOPE lipids, to design an efficient liposomal nanocarrier for siRNA delivery. The physiochemical characterizations demonstrated that the molar ratio of 3:1 has proper particle size measurements from 144 nm to 332 nm and zeta potential of -9 mV to 47 mV that depends on the ratio of the GL67 in the liposomal formulation. Gel retardation assay exhibited that increasing the percentage of GL67 in the formulations has a good impact on the encapsulation efficiency compared to DC-Chol. The optimal formulations of the 3:1 M ratio also showed high metabolic activity against A549 cells following a 24 h cell exposure. Flow cytometry findings showed that the highest GL67 lipid ratio (100 % GL67 and 0 % DC-Chol) had the highest percentage of cellular uptake. The lipoplex nanocarriers based on GL67 lipid could potentially influence treating genetic diseases owing to the high internalization efficiency and safety profile.

9.
Pharmaceutics ; 15(4)2023 Apr 11.
Article in English | MEDLINE | ID: mdl-37111693

ABSTRACT

The prevalence of type 2 diabetes (T2D) has been growing worldwide; hence, safe and effective antidiabetics are critically warranted. Recently, imeglimin, a novel tetrahydrotriazene compound, has been approved for use in T2D patients in Japan. It has shown promising glucose-lowering properties by improving pancreatic beta-cell function and peripheral insulin sensitivity. Nevertheless, it has several drawbacks, including suboptimal oral absorption and gastrointestinal (GI) discomfort. Therefore, this study aimed to fabricate a novel formulation of imeglimin loaded into electrospun nanofibers to be delivered through the buccal cavity to overcome the current GI-related adverse events and to provide a convenient route of administration. The fabricated nanofibers were characterized for diameter, drug-loading (DL), disintegration, and drug release profiles. The data demonstrated that the imeglimin nanofibers had a diameter of 361 ± 54 nm and DL of 23.5 ± 0.2 µg/mg of fibers. The X-ray diffraction (XRD) data confirmed the solid dispersion of imeglimin, favoring drug solubility, and release with improved bioavailability. The rate of drug-loaded nanofibers disintegration was recorded at 2 ± 1 s, indicating the rapid disintegration ability of this dosage form and its suitability for buccal delivery, with a complete drug release after 30 min. The findings of this study suggest that the developed imeglimin nanofibers have the potential to be given via the buccal route, thereby achieving optimal therapeutic outcomes and improving patient compliance.

10.
Front Psychol ; 13: 1006461, 2022.
Article in English | MEDLINE | ID: mdl-36507010

ABSTRACT

The attitudes of physical education (PE) teachers toward inclusion are critical to the successful provision of inclusive teaching for students with disabilities. Therefore, the purpose of this study was to investigate the attitudes of Saudi Arabian PE teachers toward the inclusion of students with disabilities in PE classes and the effect of sociodemographic variables (e.g., gender and length of teaching experience) on their attitudes toward inclusion. A total of 1,314 PE teachers (M age = 41.09, SD = 9.40, females = 42.8%) completed the Arabic version of the Sentiments, Attitudes, and Concerns about Inclusive Education-Revised Scale (SACIE-R). Analyses found that, in general, PE teachers had moderately positive attitudes toward the inclusion of students with disabilities in PE lessons. A significant difference was found between the two genders in their attitudes toward inclusion. Specifically, female PE teachers demonstrated more positive attitudes toward inclusion than males. Multiple linear regression analysis, meanwhile, showed that the length of teaching experience and the experience of teaching a student with a disability were significant predictors of participants' attitudes toward inclusion. Our findings highlighted the importance of reconsidering the quality of PE teachers' experiences and interactions with students with disabilities as a means to improving their attitudes, which in turn would translate into successful inclusion.

11.
Front Public Health ; 10: 771190, 2022.
Article in English | MEDLINE | ID: mdl-35237546

ABSTRACT

BACKGROUND: A needle stick injury is a serious occupational health hazard in health care settings. Health care workers are at risk of bloodborne diseases and the psychological consequences of these injuries. This study aims to estimate the incidence of needle stick injuries among healthcare workers during the previous 12 months and to assess their knowledge, attitude, and practice toward these injuries. METHODS: This cross-sectional study was conducted from 1st August 2019 till 15th February 2020, and included 786 healthcare workers in Abha city, Saudi Arabia. A structured questionnaire was used to collect the data. RESULTS: The incidence of needle stick injury among healthcare workers during the previous 12 months was (91/786) 11.57%. Nurses, females, and Saudis reported most needle stick injuries. More than half (52.7%) of the injuries went unreported. About 52.7% of needle stick injuries occurred during using sharp devices, and 42.9% of injuries happened in the patient room. The incidence of needle stick injury was significantly higher among those working at the secondary healthcare level (p = 0.003) and those practicing surgery (p < 0.001). Out of 786 participants, 94.7% knew the definition of needle stick injury, and 81.0% were aware of the procedure and guidelines to follow on sustaining a needle stick injury. Only 61.2% recognized that the recap of the needle is not recommended. Almost half of the participants (47.1%) agreed, and 33.6% strongly agreed that needle stick injury is preventable. A majority of healthcare workers (89.1%) had been vaccinated against Hepatitis B. Nearly 27.5% of healthcare workers incorrectly practiced recapping the needles with two hands and 8.7% bent needles before disposal. Recapping the needles was statistically significantly higher among healthcare workers who had a history of needle stick injury (p = 0. 046). CONCLUSION: Needle stick injury and its under reporting among healthcare professionals is still a prevalent risk. Raising awareness among healthcare workers and improving the reporting systems for needle stick injuries to ensure more protection and early use of post-exposure prophylaxis is required. Implementation of safety precautions and safe injection practices and providing engineered safety devices may further reduce the risk.


Subject(s)
Needlestick Injuries , Cross-Sectional Studies , Female , Health Knowledge, Attitudes, Practice , Health Personnel , Humans , Incidence , Needlestick Injuries/complications , Needlestick Injuries/epidemiology , Needlestick Injuries/prevention & control , Saudi Arabia/epidemiology
12.
Healthcare (Basel) ; 11(1)2022 Dec 27.
Article in English | MEDLINE | ID: mdl-36611534

ABSTRACT

Honor killing is a violent crime committed by one or more perpetrators, in which the crime's intention is to restore honor to their family. In this narrative review, the authors investigate the epidemiology of honor killing in the Eastern Mediterranean Region. Furthermore, the social, cultural, and legal aspects of honor killing are discussed. Numerous socio-cultural factors lead to the action of killing for honor in this region. They include deeply rooted patriarchal dominance, the desire to maintain social status, and being poorly educated. Honor killing perpetrators have similar characteristics, such as rating female chastity at a higher price and justifying violence against women. The impact of honor killing on family members is much greater than the perceived families' beliefs of the community's rejection of the female's dishonorable behavior. Silence culture dominates these societies, and many crimes are under-reported in this region. Often, a judicial trial is not conducted for such heinous crimes. Penal code reforms, campaigns to promote human rights, steps to improve the education level, and active participation of civil society in condemning such crimes are a few essential measures that need to be considered in order to curb the social evil of honor killing.

13.
Cureus ; 13(10): e18657, 2021 Oct.
Article in English | MEDLINE | ID: mdl-34765382

ABSTRACT

Perforated viscus is a fatal condition associated with a high mortality rate that necessitating immediate management. In gastric cancer, perforation is a relatively late rare presentation. In this study, we report a case of a 40-year-old male who presented with perforated gastric cancer. In the emergency department (ED), the provisional diagnosis was septic peritonitis and shock. However, upon exploratory laparotomy, pyloric tumor was detected metastasizing to the duodenum, liver, and porta hepatis.

14.
J Infect Dev Ctries ; 14(11): 1306-1313, 2020 11 30.
Article in English | MEDLINE | ID: mdl-33296344

ABSTRACT

INTRODUCTION: Surgical site infections (SSIs) are a major health issue in surgical specialties in terms of health care costs and patients' clinical outcomes. At the level of the patient, prolonged hospital stays or readmissions for SSIs, can affect the patient's quality of life. At the level of the health care system, it exhausts the hospital's resources and increases the burden on the medical staff due to the need for continuous wound care, microbiological cultures, laboratory tests and medications. In this study, we assessed the effectiveness of two antibiotic prophylaxis regimens for the prevention of SSIs in patients undergoing elective hysterectomy surgeries. METHODOLOGY: A retrospective cohort, analyzing 141 patients, was conducted between November 2016 and January 2019 at a university hospital. We compared the efficacy of a single dose vs. 24-hour multiple doses of Cefazolin in patients who underwent elective hysterectomy for benign or malignant indications. The secondary objective was to identify potential risk factors associated with SSIs. RESULTS: There was no statistically significant difference between both groups (p = 0.872). Obesity and a laparotomy surgical approach are risk factors to the development of SSIs (p = 0.001 and 0.014, respectively). Other potential risk factors include the duration of hospital stay, the duration of the surgery and the amount of blood loss. CONCLUSIONS: Although the rate of SSIs is not significantly different between both groups, risk stratification can be done after screening patients and the prophylactic regimen must be tailored for each patient in a cost-effective manner and using a multidisciplinary approach.


Subject(s)
Anti-Bacterial Agents/therapeutic use , Antibiotic Prophylaxis , Cefazolin/therapeutic use , Drug Administration Schedule , Hysterectomy/adverse effects , Surgical Wound Infection/prevention & control , Anti-Bacterial Agents/administration & dosage , Cefazolin/administration & dosage , Female , Hospitals, University/statistics & numerical data , Humans , Middle Aged , Quality of Life , Retrospective Studies , Risk Factors , Surgical Wound Infection/microbiology
15.
J Nurs Res ; 26(3): 152-157, 2018 Jun.
Article in English | MEDLINE | ID: mdl-29016466

ABSTRACT

BACKGROUND: Critical thinking and self-confidence are imperative to success in clinical practice. Educators should use teaching strategies that will help students enhance their critical thinking and self-confidence in complex content such as electrocardiogram interpretation. Therefore, teaching electrocardiogram interpretation to students is important for nurse educators. PURPOSE: This study compares the effect of simulation-based and traditional teaching methods on the critical thinking and self-confidence of students during electrocardiogram interpretation sessions. METHODS: Thirty undergraduate nursing students volunteered to participate in this study. The participants were divided into intervention and control groups, which were taught respectively using the simulation-based and traditional teaching programs. All of the participants were asked to complete the study instrumentpretest and posttest to measure their critical thinking and self-confidence. RESULTS: Improvement was observed in the control and experimental groups with respect to critical thinking and self-confidence, as evidenced by the results of the paired samples t test and the Wilcoxon signed-rank test (p < .05). However, the independent t test and Mann-Whitney U test indicate that the difference between the two groups was not significant (p > .05). CONCLUSIONS/IMPLICATIONS FOR PRACTICE: This study evaluated an innovative simulation-based teaching method for nurses. No significant differences in outcomes were identified between the simulator-based and traditional teaching methods, indicating that well-implemented educational programs that use either teaching method effectively promote critical thinking and self-confidence in nursing students. Nurse educators are encouraged to design educational plans with clear objectives to improve the critical thinking and self-confidence of their students. Future research should compare the effects of several teaching sessions using each method in a larger sample.


Subject(s)
Education, Nursing/methods , Simulation Training , Students, Nursing/psychology , Teaching/statistics & numerical data , Electrocardiography , Humans , Nursing Education Research , Nursing Evaluation Research , Nursing Methodology Research , Self Efficacy , Thinking
16.
Electron Physician ; 9(9): 5185-5190, 2017 Sep.
Article in English | MEDLINE | ID: mdl-29038695

ABSTRACT

BACKGROUND: Deep venous thrombosis (DVT) is a major cause of morbidity and mortality among hospitalized patients worldwide and, simultaneously, the most preventable. Studies revealed several risk factors of deep venous thrombosis in hospitalized patients. OBJECTIVE: to identify frequency and factors associated with occurrence of deep venous thrombosis among diabetic patients referred to King Abdulaziz University (KAU) Hospital, Jeddah, Kingdom of Saudi Arabia. METHODS: This cross-sectional hospital-based study was conducted from June to December, 2016. All diabetic patients referred to the hospital departments and who were suspected to have deep venous thrombosis (DVT) and subjected to Doppler examination were included in the study. A questionnaire was designed to obtain data about deep venous thrombosis frequency among participants and factors associated with the development of deep venous thrombosis among them. Data was collected through face to face interviews with patients included in the study. We used SPSS version 16 for data analysis through descriptive statistics and Chi-square test. RESULTS: DVT was detected in 14.7 % of the examined patients. There were significant and positive associations between age and DVT (X2=10.13, p=0.03) and between ischemic heart disease and DVT (X2=1.628, p=0.043) with the development of deep venous thrombosis among the studied patients. On the other hand, gender, other comorbidities, history of previous DVT, being bed ridden and using orthopedic casting were not significantly associated with the occurrence of deep venous thrombosis among the participants. CONCLUSION: DVT development rate among the participants was 14.7 %. Aging was significantly associated with DVT occurrence. Most of the studied factors and comorbidities had no significant role in DVT development among participants and only ischemic heart disease was significantly associated with DVT development.

17.
Asian Pac J Cancer Prev ; 17(4): 1917-23, 2016.
Article in English | MEDLINE | ID: mdl-27221876

ABSTRACT

BACKGROUND: Lynch Syndrome (LS) is a familial cancer condition caused by germline mutations in DNA mismatch repair genes. Individuals with LS have a greatly increased risk of developing colorectal cancer (CRC) and it is therefore important to identify mutation carriers so they can undergo regular surveillance. Tumor DNA from LS patients characteristically shows microsatellite instability (MSI). Our aim here was to screen young CRC patients for MSI as a first step in the identification of unrecognized cases of LS in the Saudi population. MATERIALS AND METHODS: Archival tumor tissue was obtained from 284 CRC patients treated at 4 institutes in Dammam and Riyadh between 2006 and 2015 and aged less than 60 years at diagnosis. MSI screening was performed using the BAT-26 microsatellite marker and positive cases confirmed using the pentaplex MSI analysis system. Positive cases were screened for BRAF mutations to exclude sporadic CRC and were evaluated for loss of expression of 4 DNA mismatch repair proteins using immunohistochemistry. RESULTS: MSI was found in 33/284 (11.6%) cases, of which only one showed a BRAF mutation. Saudi MSI cases showed similar instability in the BAT-26 and BAT-25 markers to Australian MSI cases, but significantly lower frequencies of instability in 3 other microsatellite markers. CONCLUSIONS: MSI screening of young Saudi CRC patients reveals that approximately 1 in 9 are candidates for LS. Patients with MSI are strongly recommended to undergo genetic counselling and germline mutation testing for LS. Other affected family members can then be identified and offered regular surveillance for early detection of LS-associated cancers.


Subject(s)
Colorectal Neoplasms, Hereditary Nonpolyposis/epidemiology , Colorectal Neoplasms/epidemiology , Microsatellite Instability , Mutation/genetics , Adult , Biomarkers, Tumor/genetics , Biomarkers, Tumor/metabolism , Colorectal Neoplasms/diagnosis , Colorectal Neoplasms/genetics , Colorectal Neoplasms, Hereditary Nonpolyposis/diagnosis , Colorectal Neoplasms, Hereditary Nonpolyposis/genetics , DNA Mismatch Repair/genetics , DNA Repair Enzymes/metabolism , DNA, Neoplasm/genetics , Female , Follow-Up Studies , Humans , Immunoenzyme Techniques , Male , Middle Aged , Neoplasm Staging , Prevalence , Prognosis , Retrospective Studies , Saudi Arabia/epidemiology
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