Associations of Electrocardiographic Abnormalities in Stable Type 2 Diabetes Subjects: Experience from a Tertiary Health Facility in South Eastern Nigeria

Introduction: Cardiovascular abnormalities are prevalent in the setting of diabetes mellitus, even among stable subjects, necessitating the need for a regular cardiovascular disease screening for this group of patients. Electrocardiogram is a simple and reliable screening test for cardiovascular abnormalities that could be easily accessible even in resource poor and rural settings. This study was carried out to determine the association between cardiovascular risk factors and electrocardiographic abnormalities in stable type 2 diabetes subjects in South Eastern Nigeria. Materials and Methods: One hundred and thirty-six stable adults with type 2 diabetes mellitus were recruited consecutively from the out-patient diabetes clinic of Nnamdi Azikiwe University Teaching Hospital in South Eastern Nigeria. They were assessed for the risk factors for cardiovascular diseases that included smoking, obesity, dyslipidaemia, poor glycaemic control, hypertension, lack of exercise, presence of chronic kidney disease and metabolic syndrome. They also had a 12 lead electrocardiogram done. Results were analyzed using SPSS version 25. P value of ˂ 0.05 was considered significant. Result: A total of 128 subjects had complete results and were analyzed. There were 63 males and 65 females with a mean age of 58.43 ± 12.85 years and mean diabetes duration of 9.03 ± 7.36 years. A total of 45.3% of the subjects had electrocardiographic abnormalities. Hypertension was present in 54.9%, dyslipidaemia in 91.4%, central obesity in 74.3%, metabolic syndrome in 76.6% and chronic kidney disease in 57.9% of the subjects. Significant association was found between smoking and occurrence of AV block (p = 0.008), central obesity and QRS axis abnormality (p = 0.002), dyslipidaemia and ST segment abnormality (p = 0.001) and lack of exercise and ST segment abnormality (p = 0.000). No significant association was found between age, sex of the subjects, duration of DM, treatment modality for DM, level of glycaemic control, hypertension, presence of CKD and metabolic syndrome and any of the electrocardiographic abnormalities. Conclusion: Electrocardiographic abnormalities are common in stable type 2 diabetic subjects. There was significant association between smoking habit, central obesity, dyslipidaemia, lack of exercise and ECG abnormalities that included AV block, QRS axis and ST segment abnormalities

Insulin initiation in Type 2 diabetes mellitus outpatients – data from the multicentre evaluation of type 2 diabetes mellitus outpatients on insulin therapy in Nigeria (METOIN study)

People living with type 2 diabetes mellitus (T2DM) have relative insulin deficiency and, therefore, have options to insulin therapy. To be on insulin alone or in combination with other therapies in type 2 DM outpatients is a choice made personalized for each patient. Published literature on the insulin initiation patterns among T2DM outpatients in Nigeria is scanty. The objective of this study, therefore, is to bridge this gap in knowledge. This was a prospective cross sectional study conducted in five tertiary health facilities in Nigeria in which consenting type 2 DM outpatients on insulin therapy alone or in combination with other therapies and who meet the inclusion criteria for the study were recruited. Relevant data relating to insulin use initiation by the patients were analyzed using Statistical Package for Social Sciences (SPSS) version 23.0 software. A total of 268 outpatients living with type 2 DM on insulin therapy, made up of 116 (43.3%) male and 152 (56.7%) females participated in the study. Only 55 (20.5%) of the patients started insulin at onset of diagnosis of T2DM while 46 (17.2%) of the patients started insulin therapy after 5 years of living with T2DM. The duration of living with DM before insulin initiation and the patient's highest level of education were not statistically significant. Insulin initiation was delayed several months to years after diagnosis of T2DM by predominantly endocrinologists in tertiary health facilities but it was initiated in 19 (7.1%) of the T2DM outpatients by primary care physicians (GPs) in peripheral hospitals. It is recommended that diabetes education be intensified for T2DM patients to appreciate the key role of insulin therapy in diabetes care. Keywords: insulin initiation, type 2 diabetes mellitus outpatients, Nigeria