ABSTRACT
Pacing-induced cardiomyopathy (PICM) is defined as a drop in left ventricular ejection fraction (LVEF) in the setting of chronic, high-burden right ventricular pacing. Cardiac resynchronization therapy (CRT) and conduction system pacing (CSP) have been proposed to manage PICM. Although acute myocardial infarction has been described as a predictor of PICM, there are no guideline recommendations for CRT or CSP in patients with coronary artery disease (CAD) and preserved LVEF. In this report, we present and discuss three cases of PICM in patients with CAD and preserved LVEF.
ABSTRACT
BACKGROUND: Hybrid closed-loop (HCL) systems have revolutionized the treatment of diabetes, enabling doctors to cope with challenging conditions that were previously almost impossible to manage or were very risky and difficult. AIMS: To assess the efficacy and safety of a hybrid closed-loop (HCL) system during Ramadan fasting in a pediatric cohort with type 1 diabetes (T1D). RESEARCH DESIGN AND METHODS: Glucose control outcomes in older children and adolescents aged 8-16 years with automated insulin delivery for T1D were analyzed during Ramadan and 1 month before Ramadan. Participants on MiniMed standard HCL (670G) or advanced HCL (780G) systems of Medtronic were categorized as fasting or nonfasting. RESULTS: The average age of the 19 participants (8 and 11 were on standard and advanced HCL systems, respectively) was 11.35 ± 2 years. Eleven patients fasted during Ramadan. Pump setup and sensor statistics were the same during Ramadan and the month before; no significant difference was found between the two groups in terms of insulin and glucose control metrics, with practically the same coefficient of variation, time in range (TIR) and time spent in hypoglycemia, maintained within the international recommended targets. Total daily doses were paradoxically higher in patients who fasted during Ramadan (p = 0.01), without repercussions on glucose control metrics. CONCLUSIONS: Standard and advanced HCL use during Ramadan were safe and were associated with a maintained optimum TIR (>70 %) and no significant hypoglycemia in adolescents and older children with T1D.
ABSTRACT
Brugada phenocopies (BrP) represent electrocardiogram changes identical to those of true congenital Brugada syndrome but are induced by reversible clinical conditions. Previous cases have been reported in patients following recreational drug use. This report presents two cases of type 1B BrP associated with Fenethylline abuse, a recreational drug known by its trade name, Captagon.
Subject(s)
Brugada Syndrome , Electrocardiography , Humans , Amphetamines , Theophylline , Phenotype , Brugada Syndrome/chemically induced , Brugada Syndrome/diagnosisABSTRACT
BACKGROUND: Glucocorticoids (GCs) have various uses in the medicine in different specialties. However, GCs administration is usually accompanying with multiple side effects such as hyperglycemia and hyperlipidemia. Alpha lipoic acid (ALA) has been documented to posse anti-diabetic properties. AIM OF THE STUDY: this study highlights the role of ALA in avoiding dexamethasone induced metabolic disturbance. MATERIALS & METHODS: 30 rats were randomly divided into 5 groups: Group (1): Control group; Groups 3, 4, and 5: rats received dexamethasone 1â¯mg/kg/day for 10â¯days; Groups 2, 4, and 5: Rats received ALA 100â¯mg/kg/day all the duration of the study, 2â¯weeks before dexamethasone, or concomitant with dexamethasone respectively. For each rat, we collected blood samples for measurement of glucose, lipid profiles, adiponectin, irisin, and Phosphoinositide 3-kinase (PI3K). We also isolated gastrocnemius muscles for measurement of insulin receptor substrate-1(IRS-1), peroxisome proliferator-activated receptor γ coactivator 1 α(PGC1-α), and adaptor protein, phosphotyrosine interacting with PH domain and leucine zipper 1(APPL) gene expression. RESULTS: Dexamethasone administration caused hyperglycemia, hyperlipemia, decrease the level of adiponectin, irisin, and PI3K besides decreasing the gene expression of IRS-1, PGC-1 α, and APPL1. ALA administration pre or concomitant to dexamethasone avoided these results. CONCLUSION: ALA can prevent metabolic abnormalities induced by dexamethasone via PGC1α and APPL1 upregulation.
