Inappropriate Polypharmacy and the Need for Comprehensive Medication Management Service

NON

Acute Coronary Syndrome in Oman : Results from the Gulf Registry of Acute Coronary Events

Acute coronary syndrome (ACS) is the most common cause of cardiovascular mortality and morbidity in Western countries. International guidelines for diagnosis and treatment have been developed based on randomised clinical trials. However, data from international registries report a lack of association between guideline recommendations and actual clinical practice. Similarly, the Gulf Heart Association initiated a registry called Gulf Registry of Acute Coronary Events (Gulf RACE). This registry was developed to determine the characteristics and management of ACS in the Gulf countries including Oman. Here, we report on the results of the various Gulf RACE registry studies from Oman and compare our results with the main Gulf RACE data as well as other international registries

Antibiotic Prescribing Trends in an Omani Paediatric Population

Objectives: This study aimed to evaluate antibiotic prescribing patterns for paediatric patients at Sultan Qaboos University Hospital (SQUH), a tertiary care hospital in Muscat, Oman. Methods: This retrospective cross-sectional study included all 1,186 prescriptions issued for 499 patients at the paediatric outpatient clinic and paediatric inpatient ward at SQUH between March and May 2012. Results: Of the 499 patients, 138 (27.6%) were prescribed a total of 28 different antibiotics. A total of 185 (15.6%) antibiotic prescriptions were issued among the total drug prescriptions. Preschool children aged 0–6 years were prescribed antibiotics most frequently (n = 110). Co-amoxiclav was the most commonly prescribed antibiotic in both inpatients and outpatients (27.0% and 33.9%, respectively), followed by cefuroxime in inpatients (13.5%) and azithromycin in outpatients (18.6%). Co-amoxiclav was the most commonly prescribed antibiotic in both 0–6 (31.3%) and 7–11 (23.3%) year-olds, while cefuroxime was most commonly prescribed in children ≥12 years old (25.0%). Conclusion: Antibiotic prescription patterns in this population were similar to those in North America, Europe and Asia. To confirm the findings of this study, further research on antibiotic prescription trends across the wider paediatric population of Oman should be initiated

Prevalence of Hepatitis C among Multi-transfused Thalassaemic Patients in Oman : Single centre experience

Objectives: Regular blood transfusions are essential for patients with thalassaemia major. However, infections with hepatotropic viruses remain a major concern. The objective of this study was to evaluate the prevalence and characteristics of hepatitis C viral (HCV) infection among patients with homozygous beta thalassaemia in a single centre in Oman. Methods: A retrospective chart review of 200 patients treated at the Thalassemia Unit of Sultan Qaboos University Hospital (SQUH) in Muscat, Oman, between August 1991 and December 2011 was performed. Relevant demographic and clinical characteristics were collected, including age, gender, HCV status and the presence of endocrinopathies. Results: A total of 81 patients (41%) were found to be anti-HCV-antibody (anti-HCV)-positive. HCV ribonucleic acid tests were performed on 65 anti-HCV-positive patients and were positive among 33 (51%); the remaining 16 patients died before these tests were available. Anti-HCV-positive patients were significantly older than anti-HCV-negative patients (P <0.001) and were more likely to be diabetic than anti-HCV-negative patients (27% versus 8%; P <0.001). A total of 100 patients had been transfused before they were transferred to SQUH in 1991; of these, 70 (70%) were anti-HCV-positive. Only 11 (11.5%) of the 96 patients who were seronegative in 1991, or who were transfused later, became seropositive. Conclusion: It is likely that the high prevalence of HCV among multi-transfused thalassaemic patients in Oman is due to blood transfusions dating from before the implementation of HCV screening in 1991 as the risk of HCVassociated transfusions has significantly reduced since then. Additionally, results showed that anti-HCV-positive patients were more likely to be diabetic than anti-HCV-negative patients

Reasons for Consultation among Patients attending Primary Healthcare Centres in Oman

Objectives: Pathways to care or care-seeking, which translate into healthcare utilisation, have been investigated in many parts of the world, but there is a dearth of studies in the Arabian Gulf. The aim of this study was to examine the characteristics of attendees at primary healthcare centres in northern Oman and their reasons for visiting. Methods: Face-to-face interviews were conducted with 676 participants attending 12 primary healthcare centres between June and July 2006. The catchment area was selected to represent the population structure in Oman. The 12-item questionnaire was read to every fifth eligible patient entering each healthcare centre for a routine appointment. Analyses were conducted using univariate statistics. Results: About a third (n = 200; 29.6%) of the participants had a history of chronic illness; 231 (34%) were on regular medications; 211 (31%) were taking part in health education programmes; 130 (19%) were open to complementary medicine. The majority of the participants mentioned physician's advice (n = 570; 84%) as the strongest reason for seeking consultation. Conversely, physician's advice was strongly related to particular demographic factors.Conclusion: This observational study identified some characteristics and reasons for visiting healthcare facilities in northern Oman. These are discussed within the context of prevailing sociocultural factors. The implications for the prevention and detection of ill health in Oman are also discussed.

Analysis of COVID-19 Vaccine Adverse Drug Reactions Reported Among Sultan Qaboos University Hospital Staff

Objectives: The aim of this study was to report any suspected adverse drug reactions (ADRs) experienced by all vaccinated staff and students. Methods: This study conducted during COVID-19 vaccination campaign that took place in a tertiary teaching hospital in Muscat from 29/Aug/2021 to 12/Sep/2021. An online survey was generated, and sent to all staff and students via email and through their mobile phones. An announcement at the hospital website with a link to the survey was made. Data analysis with descriptive statistics was done via STATA software. Results: In this study, 8,421 individuals reported being vaccinated with a total of 11,468 doses administered. A total of 8,014 patients’ doses received the Pfizer-Biotech vaccine while 3,454 patients’ doses received the Oxford-AstraZeneca brand. There were a total of 3,275 (38.8%) responses to the survey distributed. A total of 741 individuals (22.6%) experienced an ADR after taking the vaccine and 67% (n = 498) were females (P<0.001). Majority of the ADRs reported were fever and chills (19.7%) followed by localized pain at the injection site (18.8%). Other ADRs were reported such as hair loss (0.5%) and one patient reported a clot in the right leg. Most responders (27%) considered their ADRs as mild while 25% of the responders considered them as severe. Conclusion: In the study cohort, there were mild symptoms of COVID-19 vaccines, and females had more risk of ADRs compared to males. It is crucial to observe for long term ADRs to the vaccines and a follow-up monitoring should be done to subjects to preclude any unwanted effects. Keywords: Pfizer-BioNTech (BNT162b2), Oxford-AstraZeneca (ChAdOx1 nCoV-19), COVID-19 vaccines, COVID-19, Adverse Drug Reactions

Asthma Clinics in Primary Healthcare Centres in Oman: Do they make a difference?

Objectives: This study aimed to determine the effect of newly established asthma clinics (ACs) on asthma management at primary healthcare centres (PHCs) in Oman. Methods: This retrospective crosssectional study was conducted between June 2011 and May 2012 in seven PHCs in the Seeb wilayat of Muscat, Oman. All ≥6-year-old asthmatic patients visiting these PHCs during the study period were included. Electronic medical records were reviewed to determine which clinical assessment and management components had been documented. Results: A total of 452 asthmatic patients were included in the study. The mean age was 35 ± 21 years old (range: 6–95 years) and the majority (57%) were female. In total, 288 (64%) cases were managed at ACs and 164 (36%) were managed at general clinics (GCs). Significant differences were noted in the documentation of cases managed at ACs compared to those at GCs, including history-taking information regarding signs and symptoms (91% versus 19%; P <0.001), trigger factors (79% versus 16%; P <0.001) and a history of atopy (81% versus 17%; P <0.001), smoking (61% versus 7%; P <0.001), asthma exacerbations (73% versus 10%; P <0.001) or previous admissions (63% versus 10%; P <0.001). Furthermore, prescription rates of inhaled corticosteroids (72% versus 61%; P = 0.021) and short-acting β-agonists (93% versus 82%; P = 0.001) were significantly higher at ACs compared to GCs. Conclusion: Overall, the findings indicated that ACs have had a positive impact on asthma management at the studied PHCs.Keywords: Asthma; Disease Management; Patient Compliance; Medical History Taking; Medical Records; Documentation; Oman

Epidemiological and Clinical Characteristics of HIV Infected Patients at a Tertiary Care Hospital in Oman

Objectives: In 2015, the Joint United Nations Program on HIV/AIDS (UNAIDS) set a target that 90% of all people living with HIV will know their HIV status, 90% of those diagnosed will receive antiretroviral therapy, and 90% of those receiving antiretroviral therapy will have viral suppression by 2020. We sought to elucidate the epidemiological and clinical characteristics of HIV infected patients at the Infectious Diseases Clinic at Royal Hospital, Oman, with a focus on the UNAIDS 90-90-90 achieved rates. Methods: We conducted a retrospective analysis of the medical records of 326 HIV infected patients from 1989 to 2016. Data collected included demographics, Word Health Organization (WHO) staging, laboratory analyses, and treatment outcomes. Results: The overall mean age of the cohort was 36.0±15.0 years, and 60.4% (n = 197) were males. The majority of patients acquired HIV through heterosexual transmission (58.9%; n = 192). At the time of the first clinic visit, 26.1% (n = 85) of patients had WHO stage 4 HIV infection. The rates of HIV/HBV and HIV/HCV coinfections were 2.7% and 5.8%, respectively. The baseline CD4+ cells count was 500 cells/mm<3 in 27.0% (n = 88) of patients. The baseline HIV RNA titer was greater than 1000 copies/mL3 in 74.5% (n = 243) of the cohort. A total of 96.3% (n = 314) of patients received antiretroviral therapy, most commonly non-nucleoside reverse transcriptase inhibitor-based regimens. HIV genotype resistance testing was performed in 165 patients (50.6%) either at baseline in treatment naïve patients or following treatment failure. Among the 326 patients included, 22 patients (6.7%) died, and 29 patients (8.9%) were lost to follow-up. Conclusions: Regarding the UNAIDs 90-90-90 target, over a quarter of the patients presented late with WHO stage 4 HIV disease, 96.3% of cohort patients received antiretroviral treatment, and 71.5% achieved virological suppression

Comparative effectiveness and safety of rivaroxaban and warfarin for stroke prevention in patients with non-valvular atrial fibrillation in an Omani Tertiary Care Hospital.

Objective: The aim of the study was to compare the effectiveness and safety of rivaroxaban and warfarin as well as to determine the appropriateness of dosing and prescribing of rivaroxaban in Omani patients with non-valvular atrial fibrillation (NVAF). Methods: This retrospective cohort study was conducted using the Royal Hospital data registry. The study included all adults newly diagnosed with NVAF and treated with rivaroxaban or warfarin. The outcomes measured include ischaemic stroke, gastrointestinal bleeding (GIB), non-gastrointestinal bleeding (NGIB), as well as appropriateness of dosing and prescribing of rivaroxaban. Results: The analysis included 96 rivaroxaban users and 183 warfarin users; 51% of the cohort included males. There were no significant differences observed in the risk of ischaemic stroke between the two groups (hazard ratio (HR), 1.1; 95% confidence interval (CI): 0.4-3.4; p=0.8). However, those on rivaroxaban exhibited a significantly higher rate of GIB compared to those on warfarin (HR, 5.9; 95% CI: 2.9-11.7; p=0.001). There were no differences observed with regards to NGIB between the two groups (HR, 0.9; 95% CI: 0.4-1.9; p=0.8). Dosing and prescribing of rivaroxaban were found to be appropriate in 89% of the patients, with only 6% being prescribed an inappropriately lower dose. Conclusion: The study demonstrated no significant differences in the risk of ischaemic stroke or NGIB between rivaroxaban and warfarin groups in newly diagnosed NVAF patients. However, rivaroxaban users were found to have a significantly higher risk of GIB. Rivaroxaban was appropriately prescribed to the majority of the patients, and only a small proportion of the group received an inappropriately lower dose of rivaroxaban