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Objectives: Heart rate variability (HRV) is the beat-to-beat variation of heart rate and an important non-invasive tool to study the cardiac autonomic nervous system activity. Ischaemic heart disease (IHD) patients are often considered to have a state of sympathetic predominance. Elimination of myocardial ischaemia with percutaneous coronary intervention (PCI) could restore autonomic balance. Hence, this study aimed to evaluate HRV measures, after successful revascularisation among IHD patients. Materials and Methods: A total of 145 male IHD patients planned for coronary angiography were recruited. Fifteen minutes of electrocardiogram recording was done. Short-term HRV analyses of all the patients were acquired and time-domain indices (standard deviation of normal-to-normal intervals [SDNN], root-meansquared differences of successive R-R intervals [rMSSD]) and frequency-domain indices (low-frequency [LF] power, high-frequency [HF] power and total power [TP]) were analysed. Before and after PCI, all measurements were made. Results: This study included 145 male IHD patients with the mean age of 54.57 ± 10.81 years. There was a significant decrease in SDNN, rMSSD, LF, HF and TP whereas increase in LF/HF ratio following revascularisation. These changes in measures of neurocardiac regulation correlated with risk factors and medication on regression analysis. Conclusion: Increase in LF/HF ratio with the decrease in SDNN, rMSSD, LF, HF and TP in patients with IHD who underwent coronary intervention infers changed cardiac autonomic balance with this surgical procedure. These measures could be potentially used as prognostic measures in the future studies.
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Acute myocardial infarction (AMI) following ischaemic heart disease (IHD) is associated with increased morbidity and mortality. The condition remains a management challenge in resource-constrained environments. This study analysed the management and outcomes of patients presenting with AMI at a district hospital in KwaZulu-Natal. Methods: A descriptive study that assessed hospital records of all patients diagnosed with AMI over a 2-year period (01 August 2016 to 31 July 2018). Data extracted recorded patient demographics, risk factors, timing of care, therapeutic interventions, follow up with cardiology and mortality of patients. Results: Of the 140 patients who were admitted with AMI, 96 hospital records were analysed. The mean (standard deviation [s.d.]) age of patients was 55.8 (±12.7) years. Smoking (73.5%) and hypertension (63.3%) were the most prevalent risk factors for patients with ST elevation myocardial infarction (STEMI) in contrast to dyslipidaemia (70.2%) and hypertension (68.1%) in patients with non-ST elevation myocardial infarction (NSTEMI). Almost 49.5% of patients arrived at hospital more than 6 h after symptom onset. Three (12.5%) patients received thrombolytic therapy within the recommended 30-min time frame. The mean triage-to-needle time was 183 min range (3; 550). Median time to cardiology appointment was 93 days. The in-hospital mortality of 12 deaths considering 140 admissions was 8.6%. Conclusion: In a resource-constrained environment with multiple systemic challenges, in-hospital mortality is comparable to that in private sector conditions in South Africa. This entrenches the role of the family physician. There is need for more coordinated systems of care for AMI between district hospitals and tertiary referral centres.
Subject(s)
Ischemic Stroke , Heart Diseases , Hospitals, District , Inferior Wall Myocardial Infarction , Non-ST Elevated Myocardial Infarction , ST Elevation Myocardial Infarction , Patient Reported Outcome MeasuresABSTRACT
Resumen Introducción: en pacientes con cardiopatía isquémica crónica, ranolazina se ha mostrado eficaz ante casos de angina. Estudios recientes la valoran como fármaco para prevenir la fibrilación auricular poscardioversión eléctrica, posquirúrgica o posinfarto. Objetivos: valorar la presencia a largo plazo de episodios de fibrilación auricular de novo en pacientes con cardiopatía isquémica crónica y nuevo episodio de angina inestable que inician ranolazina 350 o 500 mg/12 h, en comparación con el tratamiento habitual. Métodos: estudio observacional retrospectivo que compara la incidencia de fibrilación auricular de novo en 77 pacientes consecutivos, con diagnóstico de cardiopatía isquémica no revascularizable y nuevo ingreso por síndrome coronario agudo durante el año 2013, en comparación con los que iniciaron ranolazina frente a tratamiento convencional, en los 12 meses siguientes al evento. La detección de fibrilación auricular se basó en su presencia en un primer registro electrocardiográfico. Resultados: de 77 pacientes, 38 iniciaron ranolazina, sin diferencias en cuanto a las características basales de las dos poblaciones, con similares tasas de factores de riesgo cardiovascular clásicos, datos ecocardiográficos como tamaño auricular, o tratamiento previo empleado. Se observó una tasa de fibrilación auricular de novo del 5,3% en los pacientes tratados con ranolazina, frente al 23,1% en el grupo sin ranolazina (p<0,001). Al analizar el subgrupo de pacientes que presentó fibrilación auricular en su seguimiento, únicamente es significativa la no toma de ranolazina (p<0,001). Conclusión: el uso de ranolazina en pacientes con cardiopatía isquémica crónica no revascularizable podría suponer un efecto protector para el desarrollo de fibrilación auricular durante un seguimiento de al menos doce meses.
Abstract Introduction: Ranolazine has shown to be effective in cases of angina in patients with chronic ischaemic heart disease. Recent studies have evaluated it as a drug to prevent electrical post-cardioversion, post-surgical or post-infarction atrial fibrillation. Objectives: To perform a long-term evaluation of de novo atrial fibrillation episodes in patients with chronic ischaemic heart disease and a new episode of unstable angina that are taking 350 or 500 mg/12 h of ranolazine, in comparison with usual treatment. Methods: An observational, retrospective study was performed to compare the incidence of de novo atrial fibrillation in 77 consecutive patients with a diagnosis of non-revascularisable ischaemic heart disease and a new hospital admission due to acute coronary syndrome during the year 2013. These were compared with those that started with ranolazine and those on conventional treatment in the 12 months following the event. The detection of atrial fibrillation was based on its presence in a first electrocardiographic register. Results: Of the 77 patients, 38 were started on ranolazine, with no differences as regards the baseline characteristics of the two populations. They had similar rates of classic cardiovascular risk factors, echocardiographic data, such as atrial size, or previous treatment employed. A de novo atrial fibrillation rate of 5.3% was observed in the patients treated with ranolazine, compared to 23.1% in the non-ranolazine group (P<.001). On analysing the sub-group of patients that had an atrial fibrillation in their follow-up, only not taking of ranolazine was significant (P<.001). Conclusion: The use of ranolazine in patients with non-revascularisable ischaemic heart disease could have a protective effect against the development of atrial fibrillation during a 12 months follow-up.
Subject(s)
Humans , Male , Aged , Atrial Fibrillation , Myocardial Ischemia , Ranolazine , Therapeutics , Pharmaceutical Preparations , Acute Coronary Syndrome , Heart Disease Risk FactorsABSTRACT
Resumen Es frecuente la relación entre la adrenalina administrada por vía intramuscular y el desarrollo de cardiopatía isquémica. La adrenalina potencia las hemostasias primaria y secundaria -puede producir trombosis intracoronaria- y causa vasoconstricción transitoria arteriolar. Se presenta un caso clínico de una paciente que acudió a urgencias por dolor torácico pocas horas después de una intervención dentaria. En el estudio posterior se descubrió un infarto de miocardio por trombosis intracoronaria de la descendente anterior distal.
Abstract There is a relationship between adrenaline administered intramuscularly and the development of ischaemic heart disease. Adrenaline promotes primary and secondary haemostasis, which can produce a coronary thrombosis and cause a transient arteriolar vasoconstriction. A case is presented of a patient who was seen in the Emergency Department with chest pain a few hours after dental treatment. In the subsequent work-up, it was discovered that she had a myocardial infarction due to a coronary thrombosis of the left anterior distal artery.
Subject(s)
Humans , Female , Aged , Myocardial Ischemia , Thrombosis , Coronary Artery Disease , Myocardial InfarctionABSTRACT
@#Introduction: Cardiovascular disease (CVD) is the principal cause of admission and death in the Malaysian government hospitals. Method: The pattern of cardiac related mortality (CRM) cases in Hospital Serdang, Selangor was reviewed to determine the specific trends in ethnicity, age, gender and type of CRM. Data was drawn from the death registry records in Forensic Department of Hospital Serdang from January 2006 to December 2008. This preliminary project was carried out to assess the number of CRM cases and their characteristics to feed the decision to sensibly embark on another project related to atherosclerosis. Results: Out of 573 CRM cases, 84.5% were Malaysians out of which the majority were Malays (45.9%), followed by Chinese (30.2%), and Indians (22.1%). The majority were men (78.4%) with a mean age of death at 51.83 ± 14.10 (95% CI 50.52-53.14) years as compared to women (21.6%) with a mean age of death at 57.42 ± 16.92 (95% CI 54.41-60.43) years. Declining mortality trend was observed only in men. The 46-60 years old age group had the highest percentage of mortality and continually increase by year. Ischaemic heart disease (IHD) was the most common CRM type (69.1% in 2006, 66.2% in 2007, and 71.9% in 2008). Conclusion: We observed inconsistent trends of CRM in Hospital Serdang in terms of ethnicity, age, gender and type of CRM cases presented. Nevertheless, these findings do not necessarily represent the overall trends of CRM in Malaysia.
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Introduction: One in six ischemic strokes is caused bycardiogenic embolism. The current knowledge regardingthe natural history, diagnosis, prevention, and treatment ofcardioembolic stroke is reviewed in this study. Nonrheumaticatrial fibrillation is the most frequent substrate for brainembolism and patients with this dysrhythmia have a fivefoldincrease in the risk of stroke. Study aimed to evaluate theclinical assessment of the patients with ischemic stroke lessthan 45 years of age.Material and Methods: 50 patients who were admitted inthe medical and neurology wards of Govt. Stanley medicalcollege, Chennai during the study period from December 2003to May 2004 for ischaemic stroke were clinically examined.The inclusion and exclusion criteria were satisfied, resultswere clinically and statistically assessed and the relevance oftransthoracic echocardiography was studied in them.Results: Cardiogenic embolism mostly affects the malepopulation more frequently and the most commonly affectedage group is 30-45 years. The clinically identifiable cardiaclesion was present in 77% of the cases. The most commondisease is rheumatic valvular disease as seen in about 5 casesfollowed by ischemic heart disease which was found in about3 cases. Abnormal ECG findings were observed in 12% ofcases in the form of atrial fibrillation. Left atrial enlargement,old infarct changes, conduction abnormality and recurrentstroke(12%) were the other findings. In these, 66% (4 cases)were due to the cardioembolic origin. The echocardiographicstudy increases the sensitivity of detecting cardiac lesion by22%.Conclusion: Cardiac lesion accounts for 36% of brainembolism. Hemiparesis is the most common presentation(88% of cases) followed by Hemiplegia. The middle cerebralartery is most commonly affected by embolism. Rheumaticheart disease (39%) and Ischemic heart disease are theimportant causes of brain embolism in this study.
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Background: The overall prevalence of heart failure (HF) is thought to be increasing, in part because current therapies for cardiac disorders such as myocardial infarction (MI), valvular heart disease and arrhythmias, are allowing patients to survive longer. Aims of the study were to know the presentation, causes, outcome of HF patients and to know the proportion of patients with heart failure with preserved ejection fraction (HFpEF) and heart failure with reduced ejection fraction (HFrEF).Methods: This was a cross-sectional observational study of heart failure patients for duration of one year, admitted in medicine department of medical college and SSG hospital, Vadodara, Gujarat, India.Results: Males constituted more than half of patients; however, HFpEF was more common in females in all age groups. Majority of patients had HFrEF. Breathlessness was the common presenting symptom. Common aetiologies found were ischaemic heart disease (IHD), hypertension (HTN), diabetes mellitus (DM) and valvular heart disease. 50-64 year patients constituted the major age group. IHD and DM were more common in this age group. Rheumatic heart disease (RHD) was seen commonly in 20-34 year of age group. In-hospital mortality rate though low has not much changed and contributes significantly considering the prevalence.Conclusions: Like developing countries, IHD contributes a major portion of patients with HF with risk factors like DM and HTN. Though, the contribution from RHD still cannot be ignored. There is little decrease in mortality but considering prevalence the burden is still high.
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@#Background: This study is aimed to analyse the availability, prices and affordability of medicines for ischaemic heart disease (IHD) in Bangi, Selangor, Malaysia. Methods: A quantitative research was carried out using the methodology developed by the World Health Organization and Health Action International (WHO/HAI). The prices were compared with international reference prices (IRPs) to obtain a median price ratio. The daily wage of the lowest paid unskilled government worker was used as the standard of the affordability for the medicines. In this study, ten medicines of the IHD were included. The data were collected from 10 private medicine outlets for both originator brand (OB) and lowest-priced generic brand (LPG) in Bangi, Selangor. Results: From the results, the mean availability of OB and LPG were 30% and 42%, respectively. Final patient prices for LPG and OB were about 10.77 and 24.09 times their IRPs, respectively. Medicines that consumes more than a day’s wage are considered unaffordable. Almost half of the IHD medications cost more than one day’s wage. For example, the lowest paid unskilled government worker would need 1.4 days’ wage for captopril, while 1.2 days’ wage to purchase enalapril for LPG. Meanwhile, for OB, the costs rise to 3.4 days’ wage for amlodipine and 3.3 days’ wage for simvastatin. Conclusion: The findings of this study emphasise the need of focusing and financing, particularly in the private sector, on making chronic disease medicines accessible. This requires multi-faceted interventions, as well as the review of policies and regulations.
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Resumen Objetivo: Desarrollar un modelo dinámico predictivo para generar y analizar la situación futura de la tasa de incidencia de la enfermedad isquémica del corazón en población de 25 años y mayores en México, en función de la variación en el tiempo de algunos factores de riesgo. Método: Estudio ecológico retrospectivo durante el periodo 2013-2015, en la ciudad de San Luis Potosí (México). Se utilizaron bases de datos secundarias con indicadores oficiales de los 58 municipios que conforman el estado de San Luis Potosí, los cuales corresponden a los años 2000, 2005 y 2010. Se analizaron 8 indicadores a nivel municipio, por medio de los métodos de análisis de componentes principales, modelos de ecuaciones estructurales, modelaje dinámico y software de simulación. Resultados: Fueron extraídos 3 componentes que en conjunto explican el 80.43% de la varianza total de los indicadores oficiales utilizados; el segundo componente tiene un peso de 16.36 unidades que favorecen el incremento de la enfermedad analizada; este componente está integrado solo por el indicador EDAD 60-64 y el escenario esperado del mismo va en aumento. El modelo estructural confirma que los indicadores explican el 42% de la variación de esta enfermedad; los posibles escenarios para los años 2015, 2020 y 2025 son de 195.7, 240.7 y 298, respectivamente, por cada 100,000 habitantes de 25 años y mayores. Conclusiones: Se espera un incremento exponencial en la tasa de incidencia de la enfermedad isquémica del corazón; la edad de 60-64 años se identificó como el factor de riesgo de más peso. © 2017 Instituto Nacional de Cardiología Ignacio Chávez. Publicado por Masson Doyma México S.A. Este es un artículo Open Access bajo la licencia CC BY-NC-ND (https://creativecommons.org/licenses/by-nc-nd/4.0/).
Abstract Objective: To develop a predictive dynamic model to generate and analyse the future status of the incidence rate of ischaemic heart disease in a population of 25 years and over in Mexico, according to the variation in time of some risk factors. Method: Retrospective ecological study performed during the period 2013-2015, in San Luis Potosí City, Mexico. Secondary databases that corresponded to the years 2000, 2005, and 2010, were used along with official indicators of the 58 municipalities of the state of San Luis Potosí. Eight indicators were analysed at municipality level, using principal components analysis, structural equation modelling, dynamic modelling, and simulation software methods. Results: Three components were extracted, which together explained 80.43% of the total variance of the official indicators used. The second component had a weight of 16.36 units that favoured an increase of the disease analysed. This component was integrated only by the indicator AGE 60-64 and the expected stage of it increasing. The structural model confirmed that the indicators explain 42% of the variation of this disease. The possible stages for the years 2015, 2020, and 2025 are 195.7, 240.7, and 298.0, respectively for every 100,000 inhabitants aged 25 and over. Conclusions: An exponential increase in the incidence rate of ischaemic heart disease is expected, with the age of 60-64 years being identified as the highest risk factor. © 2017 Instituto Nacional de Cardiología Ignacio Chávez. Published by Masson Doyma México S.A. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0/).
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Humans , Male , Female , Middle Aged , Myocardial Ischemia/epidemiology , Models, Theoretical , Retrospective Studies , Risk Factors , Forecasting , Mexico/epidemiologyABSTRACT
ABSTRACT Background: Chronic kidney disease (CKD) and its associated high morbidity and mortality cause a significant economic burden and decreased quality of life in affected patients in Antigua, the rest of the Caribbean and globally. The causes of CKD in Antigua, morbidity and mortality factors affecting the sampled patients were evaluated with a view to formulating interventions to minimize the occurrence and the impact of these factors. Objective: To determine the causes of CKD over a nine-year period and the causes of morbidity and mortality among patients with CKD at the two main hospitals in Antigua. Methods: A retrospective review was done of the medical records of patients with CKD who were diagnosed between January 1, 2005 and December 1, 2013. Chronic kidney disease was defined as a glomerular filtration rate of less than 60 mL/minute/1.73 m2. The causes of CKD, the patients 'admission diagnoses, the causes of death and laboratory investigations were evaluated. Results: The documented causes of CKD in these patients were diabetes mellitus (51% of the patients), hypertension (26%), glomerulonephritis (5%) and lupus nephritis (4%). The causes of morbidity among the patients with CKD were myocardial infarction (5.1%), unstable angina (12.7%) and ischaemic stroke (12%). Contributing significantly to the patients 'morbidity were catheter-associated sepsis (8.1%, p < 0.001) and lower respiratory tract infections (5.4%). The main factors contributing to the patients 'mortality were myocardial infarction (16.7%) and catheter-associated sepsis (16.7%). Conclusion: This study documented that the most common causes of CKD among the sampled patients in Antigua were diabetes mellitus and hypertension. Ischaemic heart disease and infections were the major causes of morbidity and mortality among the patients. Early recognition and aggressive management of CKD and its risk factors and complications are important in reducing the clinical and economic burden associated with CKD.
RESUMEN Antecedentes: La enfermedad renal crónica (ERC) y su alta morbilidad y mortalidad asociadas, son causa de una importante carga económica y disminución de la calidad de vida entre los pacientes afectados en Antigua, el resto del Caribe y en todo el mundo. Se evaluaron las causas de la ERC en Antigua, así como los factores de morbilidad y mortalidad que afectan a los pacientes muestreados, con el fin de formular intervenciones encaminadas a minimizar la ocurrencia y el impacto de estos factores. Objetivo: Determinar las causas de la ERC durante un período de nueve años y las causas de morbilidad y mortalidad entre pacientes con ERC en los dos principales hospitales de Antigua. Métodos: Se realizó una revisión retrospectiva de las historias clínicas de los pacientes con ERC diagnosticados entre el 1 de enero de 2005 y el 1 de diciembre de 2013. La enfermedad renal crónica se definió como una tasa de filtración glomerular inferior a 60 ml/minuto/1.73 m2. Se evaluaron las causas de la ERC, los diagnósticos de admisión de los pacientes, así como las causas de muerte y las investigaciones de laboratorio. Resultados: Las causas documentadas de la ERC en estos pacientes fueron la diabetes mellitus (51% de los pacientes), la hipertensión (26%), la glomerulonefritis (5%), y la nefritis lúpica (4%). Las causas de morbilidad entre los pacientes con ERC fueron el infarto de miocardio (5.1%), la angina inestable (12.7%) y el accidente cerebrovascular isquémico (12%). La sepsis asociada con catéter (8.1%, p < 0.001) y las infecciones de las vías respiratorias inferiores (5.4%) contribuyeron significativamente a la morbilidad de los pacientes. Los principales factores que contribuyeron a la mortalidad de los pacientes fueron el infarto del miocardio (16.7%) y la sepsis asociada con catéter (16.7%). Conclusión: Este estudio documentó que las causas más comunes de ERC entre los pacientes incluidos en la muestra en Antigua fueron la diabetes mellitus y la hipertensión. La enfermedad cardíaca isquémica y las infecciones fueron las principales causas de morbilidad y mortalidad entre los pacientes. El diagnóstico temprano y el tratamiento agresivo de la ERC y sus factores y complicaciones de riesgo, son asuntos de importancia a la hora de reducir la carga clínica y económica asociadas con ERC.
Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Renal Insufficiency, Chronic/mortality , West Indies/epidemiology , Severity of Illness Index , Prevalence , Retrospective Studies , Disease Progression , Renal Insufficiency, Chronic/etiologyABSTRACT
Introduction: The on-going, international, prospective, observational, longitudinal CLARIFY registry is investigating the demographics, clinical profiles, management and outcomes of patients with stable coronary artery disease (CAD). This paper assesses baseline characteristics, treatment, and clinical outcomes at two years’ follow-up of Malaysian/Bruneian patients compared with the overall registry population. Method: Between November 2009 and July 2010, outpatients from 45 countries who met the criteria for stable CAD were recruited into the registry. Baseline characteristics were documented at enrolment, and patients were reassessed during their annual visits over a five-year follow-up period. Key outcomes measured were sudden death and cardiovascular (CV) death, non-CV death and CV morbidity. Results: At baseline, 33,283 patients were available for analysis within the registry; 380 and 27 were Malaysians and Bruneians, respectively. The mean ages of Malaysian/Bruneian patients and the rest of the world (RoW) were 57.83 ±9.98 years and 64.23 ± 10.46 years, respectively (p<0.001). The median body mass index values were 26.6 (24.4-29.6) kg/m2 and 27.3 (24.8-30.3) kg/m2 , respectively (p=0.014). Malaysian/Bruneian patients had lower rates of myocardial infarction (54.55% versus 59.76%, p=0.033) and higher rates of diabetes (43.24% versus 28.99%, p<0.001) and dyslipidaemia (90.42% versus 74.66%, p<0.001) compared with the RoW. Measured clinical outcomes in Malaysian and Bruneian patients at 2-years follow-up were low and generally comparable to the RoW. Conclusion: Malaysian/Bruneian patients with stable CAD tend to be younger with poorer diabetic control compared with the RoW. However, they had similar outcomes as the main registry following two years of treatment.
Subject(s)
Coronary Artery Disease , Cardiovascular Diseases , Heart RateABSTRACT
Background Liver is the central hub for metabolism. Liver dysfunction in diabetes mellitus is one of the major causes of morbidity and mortality. Periodical evaluation of transaminases helps in early diagnosis of liver dysfunction. Aim The aim of the present study is to measure aspartate transaminase (AST) and alanine transaminase (ALT) in known cases of type 2 diabetes mellitus (T2DM) and to compare the values with matched controls. Settings and Design Institutional cross-sectional observation study. Methods & Material Study was done in 100 known cases of T2DM and in 30 controls. Age, AST, ALT and fasting plasma glucose (FPG) were recorded, analysed and compared between two groups. Statistical Analysis Data was analysed using Microsoft Excel 2007 and SPSS trial version 16.0. Results Significant difference between FPG, AST, ALT and age were observed between two groups (P < 0.05). Conclusion The results from our study showed that there are elevated levels of ALT and ASTs among T2DM patients when compared with normal individuals.
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Aims: This study aimed to find the cardiac cells which can participate in the processes of regeneration at patients with heart failure due to ischaemic heart disease. To investigate the participation of myosin activating protein kinases in sarcomerogenesis, because sarcomerogenesis is the crucial part of cardiomyocyte differentiation process. Study Design: Resident cardiomyocyte progenitors and dedifferentiated cardiomyocytes were found in left atrial appendages from patients with heart failure due to ischaemic heart disease. We used a cell model of fetal cardiomyocytes with the disassembly contractile apparatus to study the forming of new myofibrils (or sarcomerogenesis) regulated by myosin activating protein kinases. Place and Duration of Study: Cardiology Research and Production Center, Research Center for Obstetrics, Gynecology and Perinatology, Department of Fundamental and Applied Neurobiology of V. Serbsky Federal Medical Research Centre of Psychiatry and Narcology between June 2014 and October 2015. Methodology: We included 10 patients with heart failure due to ischaemic heart disease. Resident cardiomyocyte progenitors and dedifferentiated cardiomyocytes were found by the immunofluorescence approach and the electron microscopy. To determine the myosin activating protein kinases localization in human fetal cardiomyocytes at the 8-9 week heart gestation stage immunofluorescence approach was used. Results: We detected the cardiomyocyte progenitor cells which express c-Kit and Nkx-2.5, other cells express Mdr-1 and GATA-4. Dedifferentiated cardiomyocytes were found. It has been established that smooth muscle, nonmuscle and skeletal myosin light chain kinases are colocalized with nonmuscle myosin in premyofibrils in fetal human cardiomyocytes. Conclusion: We demonstrated that the heart of patients with heart failure due to ischaemic heart disease contains the progenitor resident cardiomyocytes and dedifferentiated cardiomyocytes. These cardiac cells possibly can proliferate and differentiate to mature cardiomyocytes and recover heart function and structure after injury. Myosin activating protein kinases may contribute in myofibril formation during the cardiomyocyte differentiation.
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Coronary artery disease is the major cause of mortality and morbidity in Malaysia and worldwide. This paper reviews all research and publications on coronary artery disease in Malaysia published between 2000-2015. 508 papers were identified of which 146 papers were selected and reviewed on the basis of their relevance. The epidemiology, etiology, risk factors, prevention, assessment, treatment, and outcomes of coronary artery disease in the country are reviewed and summarized. The clinical relevance of the studies done in the country are discussed along with recommendations for future research.
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Coronary Artery DiseaseABSTRACT
Atrial infarction is a very rare diagnosis. Though available literature suggests, the condition per se may have been not so rare. Over the past few decades, atrial infarction have been reported several times, even some case series have been reported, but there is no consensus on the diagnosis of this condition, and its true importance also has not been understood completely. Previous works have shown that this condition is associated with several serious complications; hence recognition of this condition in early period is important, which is at the same time not so easy due to subtlety of the known features and less availability of information. We report a case of 70 year old Muslim, Bengali, male suffering from acute coronary syndrome, in whom, right atrial infarction was recognized by electrographic features, which is very rarely diagnosed with confidence in ante-mortem patients. Since, in Bangladesh, post-mortem autopsy to find out causes behind cardiac death is not done routinely and in the light of possibility of serious life-threatening complications, ante-mortem diagnosis of atrial infarction is necessary. So, Cardiologists should be aware of this uncommon condition.
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Background: Acute coronary syndrome is a cardiac emergency. It is increasingly common in younger peoples. Management of elderly peoples is difficult due to their associated comorbidity. This study tried to compare the in-hospital outcome of the younger and older patients with acute coronary syndrome. Methods: The study was a comparative cross sectional study. Clinical and biochemical evaluation was done in hospital settings. A total number of 120 patients were included in the study and divided into two groups according to distribution of age. In group I there were elderly groups of aged >60 yrs. and in group II there were patients within the age 40 to 60 yrs. All the data were collected systematically in a preformed data collection form. Results: Group I populations had more in hospital stay and more complications than group II. Conclusion: The study revealed significant association with age and outcome of Acute coronary syndrome patients. Complications of acute coronary syndrome increase as the age of the patients increases.
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Background: Due to socio-economic improvement and changes in the life style, ischeamic heart disease is becoming a major burden to our health care system. In recent years, the incidence is increasing among younger age groups as well. Methods: A total of 120 patients with ischeamic heart disease admitted for coronary angiogram were included in the study and were divided into two groups. Among them, 60 younger patients were in Group-I (d” 40 years of age); 60 older patients in Group-II (>40 years of age). We compared demographic profiles, different risk factors and angiographic profiles between two age groups. Results: Among the common risk factors, smoking (63.3% vs 40%, p=0.011) & family history of ischeamic heart disease (21.7% vs 8.3%, p=0.040) were more common in younger group. Whereas, hypertension (41.7% vs 65.0%, p=0.010) and DM (18.3% vs 36.7%, p=0.024) were more common in older patients. Serum Homocysteine level was found significantly higher in younger patients (30.0% vs 13.3%, p=0.026). In group-I. coronary angiography revealed normal coronaries in 15 patients (25%), single vessel disease in 29 (48.3%) and multi-vessel disease in 16 patients (26.6%). Whereas, 40(66.6%) patients in group-II were found to have multi-vessel disease and 2 of them had significant left main coronary disease. However, young patients who had high serum homocysteine level showed more angiographic severity than older patients. Conclusion: There are significant differences in the clinical, biochemical and angiographic profile of young patients with ischeamic heart disease as compared to older patients. Young patients with ischeamic heart disease has got less angiographic severity, except in those with high serum homocysteine level.
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Background: There is growing recognition that congestive heart failure caused by a predominant abnormality in left ventricular diastolic function is common and causes significant morbidity and mortality. Diastolic function usually declines before systolic function, and this precedes clinical signs. 12-lead electrocardiogram is a commonly used tool to assess left atrial enlargement, which is a marker of left ventricular diastolic dysfunction. We investigated the relationship between P wave dispersion, which is easily measured on the surface electrocardiogram and left ventricular diastolic function. Methods: There were 100 patients: 50 with diastolic dysfunction and 50 without. P wave dispersions were calculated by measuring minimum and maximum P wave duration values on the surface electrocardiogram. The relationships between P wave dispersion and echocardiographic measurements of diastolic dysfunction were assessed. Results: Maximum P wave duration was observed significantly (p=0.001) in patients with left ventricular diastolic dysfunction (119.60±8.2 ms vs 114.0±6.4 ms). Minimum P wave duration was observed significantly (p=0.001) higher in patients without diastolic dysfunction (72.6±7.5 ms vs 62.70±7.4 ms). P wave dispersion was observed significantly (p=0.001) higher in patients with left ventricular diastolic dysfunction (56.6±6.3 ms vs 41.5±5.2 ms). When patients were grouped according to grades of diastolic dysfunction, P wave dispersion was observed sequentially increased among 3 grades of left ventricular diastolic dysfunction (55.8±5.2 ms vs 55.9±7.0 ms vs 61.4±4.7) but the differences were not statistically significant (p=0.09). Conclusion: We conclude that P wave dispersion increases in diastolic dysfunction of LV. When clinical and echocardiographic variables are taken into account, there is a weak but significant correlation between P wave dispersion and left ventricular ejection fraction.
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Background: In epidemiological studies and clinical trials renal function has been shown to be an independent predictor of coronary artery disease (CAD). We conducted this study to find out the association between creatinine clearance rate (CCr) and coronary angiographic severity in patients with (CAD). Method: It was a cross sectional study carried out in the department of Cardiology, Dhaka Medical College Hospital, Dhaka during the period of April, 2011 to March, 2012. All the patients with Ischaemic heart disease (IHD) admitted in the department of Cardiology who fulfill the inclusion and exclusion criteria and underwent coronary angiogram were taken as sampling population. Sampling technique was purposive and sample size was 118. By Cockcroft-Gault formula, CCr was estimated from serum creatinine. Coronary angiographic severity of coronary artery disease was assessed by vessel score and stenosis score. Statistical analysis was carried out by descriptive statistics, correlation coefficient test and one way ANOVA test. Level of significance was set at 0.05. Results: Mean CCr among study subjects was 72.57 ± 17.78 ml/min. Vessel score showed 18.6% had normal coronaries, 37.3% single vessel disease, 31.4% double vessel disease and 12.7% triple vessel disease. There was significant positive relationship between serum creatinine and vessel score, and also negative relationship between CCr and vessel score. The study also showed significant negative correlation between CCr and stenosis score. Conclusion: Angiographic severity of coronary artery disease is associated with degree of renal dysfunction. Decreased creatinine clearance is associated with more extensive CAD.
ABSTRACT
Anxiety and depression were known to bring detrimental outcome in patients with ischemic heart disease (IHD). Notwithstanding their high prevalence and catastrophic impact, anxiety and depression were unrecognized and untreated. The aim of this study was to determine the prevalence of anxiety and depression among IHD patients and the association of this condition with clinical and selected demographic factors. This was a cross-sectional study on 100 IHD patients admitted to medical ward in UKMMC. Patients diagnosed to have IHD were randomly assessed using Hospital Anxiety and Depression Scale (HADS) and Perceived Social Support (PSS) Questionnaire. Socio-demographic data were obtained by direct interview. Fifteen percent of IHD patients in this sample were noted to have anxiety, fourteen percent noted to have depression while thirty two percent was noted to have both anxiety and depression. Patients’ age group and the duration of illness were found to have significant association with anxiety. Socio-demographic data were obtained by direct interview. Fifteen percent of IHD patients in this sample were noted to have anxiety, fourteen percent noted to have depression while thirty two percent was noted to have both anxiety and depression. Patients’ age group and the duration of illness were found to have significant association wit¬h anxiety. The other clinical and selected demographic factors such as gender, race, marital status, education level, occupation, co-existing medical illness and social support were not found to be significantly associated with anxiety or depression among the IHD patients. In conclusion, proper assessment of anxiety and depression in IHD patients, with special attention to patients’ age and duration of illness should be carried out routinely to help avert detrimental consequences.