A genetic polymorphism in GCKR may be associated with low high-density lipoprotein cholesterol phenotype among Filipinos: A case-control study

@#<p style="text-align: justify;"><strong>Background.</strong> Low levels of high-density lipoprotein cholesterol (HDL-c) is a well-recognized risk factor in the development of cardiovascular diseases. Associated gene variants for low HDL-c have already been demonstrated in various populations. Such associations have yet to be established among Filipinos who reportedly have a much higher prevalence of low HDL-c levels compared to other races.</p><p style="text-align: justify;"><strong>Objective.</strong> To determine the association of selected genetic variants and clinical factors with low HDL-c phenotype in Filipinos.</p><p style="text-align: justify;"><strong>Methods.</strong> An age- and sex-matched case-control study was conducted among adult Filipino participants with serum HDL-c concentration less than 35 mg/dL (n=61) and those with HDL-c levels of more than 40 mg/dL (n=116). Genotyping was done using DNA obtained from blood samples. Candidate variants were correlated with the low HDL-c phenotype using chi-squared test and conditional logistic regression analysis.</p><p style="text-align: justify;"><strong>Results.</strong> Twelve single nucleotide polymorphisms (SNPs) were associated with low HDL-c phenotype among Filipinos with univariate regression analysis. The variant rs1260326 of glucokinase regulator (GCKR) (CT genotype: adjusted OR=5.17; p-value=0.007; TT genotype: adjusted OR=6.28; p-value=0.027) remained associated with low HDL-c phenotype, together with hypertension and elevated body mass index, after multiple regression analysis.</p><p style="text-align: justify;"><strong>Conclusion.</strong> The variant rs1260326 near GCKR is associated with low HDL-c phenotype among Filipinos. Its role in the expression of low HDL-c phenotype should be further investigated prior to the development of possible clinical applications.</p>

Variants near CETP, MTTP and BUD13-ZPR1-APOA5 may be nominally associated with poor statin response among Filipinos

@#<p style="text-align: justify;"><strong>Objective.</strong> Several studies showed that genetic factors affect responsiveness to statins among different populations. This study investigated the associations of candidate genetic variants with poor response to statins among Filipinos.</p><p style="text-align: justify;"><strong>Methods.</strong> In this unmatched case-control study, dyslipidemic participants were grouped into statin responders and poor responders based on the degree of reduction in LDL-c from baseline. DNA from blood samples were genotyped and analyzed. The association of candidate variants with statin response was determined using chi-square and logistic regression analysis.</p><p style="text-align: justify;"><strong>Results.</strong> We included 162 adults on statins (30 poor responders as cases, 132 good responders as controls). The following variants are nominally associated with poor response to statin among Filipinos at a per-comparison error rate of 0.05: rs173539 near CETP (OR=3.05, p=0.015), rs1800591 in MTTP (OR=3.07, p=0.021), and rs1558861 near the BUD13-ZPR1-APOA5 region (OR=5.08, p=0.004).</p><p style="text-align: justify;"><strong>Conclusion.</strong> Genetic variants near CETP, MTTP and the BUD13-ZPR1-APOA5 region are associated with poor response to statins among Filipinos. Further study is recommended to test the external validity of the study in the general Filipino population.</p>

Factors Associated with Survival from In-Hospital Cardiac Arrest in the Service Wards and Intensive Care Units of a Tertiary Hospital

@#Background. Despite the recent advances in advanced cardiac life support (ACLS), there has been no significant improvement in survival among patients who undergo cardiac arrest. To date, there are no local guidelines on the requirements or standards of in-hospital cardiac arrest teams in the Philippines. In addition, there are still no studies on the outcomes of cardiac arrests among adult patients in a tertiary hospital in the Philippines. Objectives. The objective of this study is to investigate patient-, event-, and hospital-related factors associated with survival among adult patients who underwent in-hospital cardiac arrest in the service wards and intensive care units of a tertiary hospital. Methods. This is a prospective cross-sectional study conducted over three months in 2018. Patient-, event- and hospital-related data were collected from each patient with a cardiac arrest event who was referred to the cardiac arrest teams based on the modified Utstein form of reporting cardiac arrests. Survival to discharge from cardiac arrest was the main outcome. Results. The study included 119 patients, 47.9% male, with a mean age of 50.1 years (SD 16.7). Survival rate was 6.7%. The mean response time did not differ between survival group (1.46 minutes) and mortality group (1.82 minutes) (p value = 0.26). The presence of a shockable initial rhythm (3.6% vs 3/8; p value = 0.01), shorter lag time to initiation of electrical therapy (6.0 vs 9.3 ± 5.6 min; p value = 0.02), shorter time to establishment of an airway (2.75 ± 1.6 vs. 6.98 ± 5.2 min; p value = 0.01), and shorter duration of resuscitation (7 ± 4.6 vs. 13.0 ± 7.9 min; p value = 0.01) were significantly associated with survival. The presence of underlying illnesses is associated with higher mortality. The most common hospital-related problems identified were the need to cover long distances, delay in the call, and the lack of elevators. Conclusion. The survival rate of patients who underwent cardiac arrest and resuscitation by a cardiac arrest team is low. The initial presenting rhythm, lag time to initiation of electrical therapy, time to establishment of airway, duration of resuscitation, as well as the underlying disease can significantly affect survival. Streamlining the resources of the hospital to address these matters can have an impact on survival.

Clinical profile and outcomes of Filipino Lupus patients with Myocarditis in a tertiary hospital

Introduction@#Myocarditis is a rare but serious complication of systemic lupus erythematosus (SLE). Existing literature on adult Filipino SLE patients with myocarditis is limited. This study aims to determine clinical characteristics and outcomes of myocarditis in Filipino patients with lupus.@*Methods@#Review of medical records (between 2015 and 2017) of eight adult patients with lupus myocarditis in a tertiary government hospital was done. Clinical features, electrographic and echocardiographic findings, management, and outcomes were described.@*Results@#All patients were females with a mean lupus duration of 10 months at the time myocarditis was diagnosed. Half of them had severe lupus activity, mostly with concomitant hematologic activity (100%) and nephritis (75%). Echocardiography showed wall motion abnormalities in all patients, with 63% having global hypokinesia and 75% having moderate to severe hypokinesia of the left ventricular wall. Treatment included methylprednisolone pulse therapy (88%) and high-dose steroids (13%). One patient died from cardiogenic and septic shock prior to receiving MPPT. Most patients (75%) were clinically improved at the time of discharge.@*Conclusion@#Filipino patients with lupus typically present with myocarditis early in the course of the disease, with high disease activity and concomitant hematologic activity and nephritis. Outcomes are generally favorable with early immunosuppressive therapy.

Observer variability in the diagnosis of ST-Elevation Myocardial Infarction from Emergency Room Electrocardiograms of patients presenting with chest pain

Background@#The diagnosis of ST-elevation myocardial infarction on standard 12-lead electrocardiography is crucial to the timely institution of appropriate medical therapies and interventions. However, the electrocardiographic diagnosis may be prone to observer variability. @*Objectives@#We wanted to determine the 1) inter-observer variability among clinicians from a training hospital in the diagnosis of ST-elevation myocardial infarction (STEMI) from emergency room electrocardiograms (ECG) of patients presenting with chest pain, and 2) the accuracy of clinician readings compared to the final cardiac diagnosis in the official patient records @*Methods@#Forty electrocardiograms were independently interpreted by 40 clinicians which included 10 cardiologists (CC), 5 cardiology fellows (CF). 15 internal medicine (IM), and 10 internal medicine residents (MR), using uniform copies of the standard 12-lead electrocardiogram print-outs. All readers were blinded to the patient's clinical profile. The accuracy of clinician readings (% of tracings correctly identified as STEMI) were compared against a reference standard, which was the final cardiac diagnosis made based on historical, electrocardiographic, biochemical, and angiographic data. @*Results@#The overall level of agreement among all readers (intergroup variability) was only fair with a kappa of 0.24. The level of agreement within the groups (intra-group variability) was likewise "fair" for the IM (0.35), MR (0.32), and CC (0.30 groups. Agreement was much less (0.18) among the cardiology fellows (0.18) among the cardiology fellows (CF). Accuracy of ECG diagnosis varied among the groups: IM (68%), MR (60%), CF (52%) and CC (50%). @*Conclusions@#There is substantial inter-group variability in the electrocardiographic diagnosis of STEM by clinicians. The accurate diagnosis of STEMI, based on pure electrocardiographic informa-tion, varied among readers with different training backgrounds. These findings suggest that the electrocardiographic diagnosis of STEM may be influenced by training background and experience. as well as presence or absence of supplemental medical information necessary to make a comprehensive and accurate cardiac diagnosis. More importantly, this underscores the need to harmonize electrocardiographic interpretations and recognize the value of reading ECGs in light of pertinent clinical data