ISRN cardiologyPub Date : 2013-03-27Print Date: 2013-01-01DOI: 10.1155/2013/248476
Gemina Doolub, Erica Dall'armellina
{"title":"Intracoronary adenosine versus intravenous adenosine during primary PCI for ST-elevation myocardial infarction: which one offers better outcomes in terms of microvascular obstruction?","authors":"Gemina Doolub, Erica Dall'armellina","doi":"10.1155/2013/248476","DOIUrl":"https://doi.org/10.1155/2013/248476","url":null,"abstract":"<p><p>Aims. Previous studies have suggested that intravenous administration of adenosine improves myocardial reperfusion and reduces infarct size in ST-elevation myocardial infarction (STEMI) patients. Intracoronary administration of adenosine has shown conflicting results. Methods. In this retrospective, single-centre, blinded clinical study, we assessed whether selective intracoronary administration of adenosine distal to the occlusion site immediately before initial balloon inflation reduces microvascular obstruction (MVO) as assessed with cardiac magnetic resonance imaging (MRI). Using contrast-enhanced sequences, microvascular obstruction (MVO) was calculated. We found 81 patients presenting with STEMI within 12 h from symptom onset who were eligible for the study. In 80/81 (100%) patients receiving the study drug, MRI was performed on Day 1 after primary angioplasty. Results. The prevalence of MVO was reduced in the patients treated with intracoronary adenosine, (45%) compared to 85% of patients who were administered intravenous adenosine (P = 0.0043). We found that the size of MVO in patients receiving intracoronary adenosine was significantly reduced compared to 0.91 g in the intravenous-treated group (P = 0.027). There was no statistically significant difference in TIMI flow and clinical outcomes after primary PCI. Conclusion. We found significant evidence that selective high-dose intracoronary administration of adenosine distal to the occlusion site of the culprit lesion in STEMI patients results in a decrease in microvascular obstruction.</p>","PeriodicalId":73519,"journal":{"name":"ISRN cardiology","volume":"2013 ","pages":"248476"},"PeriodicalIF":0.0,"publicationDate":"2013-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3623473/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31376566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ISRN cardiologyPub Date : 2013-01-01Epub Date: 2013-02-20DOI: 10.1155/2013/782508
Pier Paolo Bassareo, Giuseppe Mercuro
{"title":"QRS Complex Enlargement as a Predictor of Ventricular Arrhythmias in Patients Affected by Surgically Treated Tetralogy of Fallot: A Comprehensive Literature Review and Historical Overview.","authors":"Pier Paolo Bassareo, Giuseppe Mercuro","doi":"10.1155/2013/782508","DOIUrl":"https://doi.org/10.1155/2013/782508","url":null,"abstract":"<p><p>Tetralogy of Fallot (TOF) is a congenital heart disease frequently treated by surgical repair to relieve symptoms and improve survival. However, despite the performing of an optimal surgical repair, TOF patients are at times characterized by a poor long-term survival rate, likely due to cardiac causes such as ventricular arrhythmias, with subsequent sudden death. In the 80s it was irrefutably demonstrated that QRS prolongation ≥180 msec at basal electrocardiogram is a strong predictor for refining risk stratification for ventricular tachycardia in these patients. The aim of this research was to undertake a review of all studies conducted to assess the impact of QRS duration on the development of life-threatening ventricular arrhythmias in repaired TOF subjects.</p>","PeriodicalId":73519,"journal":{"name":"ISRN cardiology","volume":"2013 ","pages":"782508"},"PeriodicalIF":0.0,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2013/782508","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31318920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ISRN cardiologyPub Date : 2013-01-01Epub Date: 2013-03-12DOI: 10.1155/2013/731285
Laura Ajello, Giuseppe Coppola, Egle Corrado, Eluisa La Franca, Antonino Rotolo, Pasquale Assennato
{"title":"Diagnosis and treatment of asymptomatic left ventricular systolic dysfunction after myocardial infarction.","authors":"Laura Ajello, Giuseppe Coppola, Egle Corrado, Eluisa La Franca, Antonino Rotolo, Pasquale Assennato","doi":"10.1155/2013/731285","DOIUrl":"10.1155/2013/731285","url":null,"abstract":"<p><p>The increased survival after acute myocardial infarction induced an increase in heart failure with left ventricular systolic dysfunction. Early detection and treatment of asymptomatic left ventricular systolic dysfunction give the chance to improve outcomes and to reduce costs due to the management of patients with overt heart failure.</p>","PeriodicalId":73519,"journal":{"name":"ISRN cardiology","volume":"2013 ","pages":"731285"},"PeriodicalIF":0.0,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2013/731285","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31351284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ISRN cardiologyPub Date : 2013-01-01Epub Date: 2013-01-02DOI: 10.1155/2013/687069
Aibek E Mirrakhimov, Alaa M Ali
{"title":"Pathobiology of obstructive sleep apnea-related dyslipidemia: focus on the liver.","authors":"Aibek E Mirrakhimov, Alaa M Ali","doi":"10.1155/2013/687069","DOIUrl":"https://doi.org/10.1155/2013/687069","url":null,"abstract":"<p><p>Obstructive sleep apnea and dyslipidemia are common medical disorders that independently increase vascular morbidity and mortality. Current animal and human data show that, indeed, obstructive sleep apnea may mediate pathological alterations in cholesterol and triglyceride metabolism. The mechanisms involved are increased lipolysis, decreased lipoprotein clearance, and enhanced lipid output from the liver. Human evidence shows that the treatment of obstructive sleep apnea with continuous positive airway pressure leads to an improvement of postprandial hyperlipidemia. However, more studies are needed, to clarify the pathophysiology of the interrelationship between obstructive sleep apnea and dyslipidemia and whether treatment of obstructive sleep apnea will lead to an improvement in the lipid profile and, more importantly, reduce hyperlipidemia-related vascular outcomes.</p>","PeriodicalId":73519,"journal":{"name":"ISRN cardiology","volume":"2013 ","pages":"687069"},"PeriodicalIF":0.0,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2013/687069","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31181077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Amiodarone-induced cirrhosis of liver: what predicts mortality?","authors":"Nasir Hussain, Anirban Bhattacharyya, Suartcha Prueksaritanond","doi":"10.1155/2013/617943","DOIUrl":"https://doi.org/10.1155/2013/617943","url":null,"abstract":"<p><p>Introduction. Amiodarone has been used for more than 5 decades for the treatment of various tachyarrhythmias and previously for the treatment of refractory angina. There are multiple well-established side effects of amiodarone. However, amiodarone-induced cirrhosis (AIC) of liver is an underrecognized complication. Methods. A systematic search of Medline from January 1970 to November 2012 by using the following terms, amiodarone and cirrhosis, identified 37 reported cases of which 30 were used in this analysis. Patients were divided into 2 subsets, survivors versus nonsurvivors, at 5 months. Results. Aspartate aminotransferase was significantly lower (P = 0.03) in patients who survived at 5-months (mean 103.33 IU/L) compared to nonsurvivors (mean 216.88 IU/L). There was no statistical difference in the levels of prothrombin time, total bilirubin, alanine aminotransferase, alkaline phosphatase, gamma-glutamyl transpeptidase, cumulative dose, and latency period between the two groups. The prevalence of DM, HTN, HLD, CAD, and CHF was similar in the two groups. None of the above-mentioned variables could be identified as a predictor of survival at 5 months. Conclusion. AIC carries a mortality risk of 60% at 5 months once the diagnosis is established. Further prospective studies are needed to identify predictors of AIC and of mortality or survival in cases of AIC.</p>","PeriodicalId":73519,"journal":{"name":"ISRN cardiology","volume":"2013 ","pages":"617943"},"PeriodicalIF":0.0,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2013/617943","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"31351283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ISRN cardiologyPub Date : 2012-01-01DOI: 10.5402/2012/192670
Hristo Mateev, Iana Simova, Tzvetana Katova, Nikolay Dimitrov
{"title":"Clinical evaluation of a mobile heart rhythm telemonitoring system.","authors":"Hristo Mateev, Iana Simova, Tzvetana Katova, Nikolay Dimitrov","doi":"10.5402/2012/192670","DOIUrl":"https://doi.org/10.5402/2012/192670","url":null,"abstract":"<p><p>Purpose. To evaluate the clinical applicability of a telemonitoring system: telemetric system for collection and distant surveillance of medical information (TEMEO). Methods. We evaluated 60 patients, applying simultaneously standard Holter ECG and telemonitoring. Two different comparisons were performed: (1) TEMEO ECG with standard 12-lead ECG; (2) TEMEO Holter with standard ECG Holter. Results. We found a very high coincidence rate (99.3%) between TEMEO derived ECGs and standard ECGs. Intraclass correlation coefficient analysis revealed high and significant correlation coefficients regarding average, maximal, and minimal heart rate, % of time in tachycardia, single supraventricular ectopic beats (SVEB), and single and couplets of ventricular ectopic beats (VEB) between Holter ECG and TEMEO derived parameters. Couplets of SVEB were recorded as different by the two monitoring systems, however, with a borderline statistical significance. Conclusions. TEMEO derived ECGs have a very high coincidence rate with standard ECGs. TEMEO patient monitoring provides results that are similar to those derived from a standard Holter ECG.</p>","PeriodicalId":73519,"journal":{"name":"ISRN cardiology","volume":"2012 ","pages":"192670"},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5402/2012/192670","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9380958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ISRN cardiologyPub Date : 2012-01-01DOI: 10.5402/2012/982417
Javed Butler
{"title":"Primary prevention of heart failure.","authors":"Javed Butler","doi":"10.5402/2012/982417","DOIUrl":"https://doi.org/10.5402/2012/982417","url":null,"abstract":"<p><p>Most heart failure research and quality improvement efforts are targeted at treatment and secondary prevention of patients with manifest heart failure. This is distinct from coronary disease where primary prevention has been a focus for over three decades. Given the current importance and the projected worsening of heart failure epidemiology, a more focused effort on prevention is urgently needed.</p>","PeriodicalId":73519,"journal":{"name":"ISRN cardiology","volume":"2012 ","pages":"982417"},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5402/2012/982417","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9432597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ISRN cardiologyPub Date : 2012-01-01Epub Date: 2012-06-27DOI: 10.5402/2012/906109
Christina Maria Steger, Thomas Hager, Elfriede Ruttmann
{"title":"Primary cardiac tumours: a single-center 41-year experience.","authors":"Christina Maria Steger, Thomas Hager, Elfriede Ruttmann","doi":"10.5402/2012/906109","DOIUrl":"https://doi.org/10.5402/2012/906109","url":null,"abstract":"<p><p>Primary cardiac tumours are extremely rare with the most commonest being left atrial myxomas. In general, surgical resection is indicated, whenever the tumour formation is mobile and embolization can be suspected. Within 17280 patients receiving heart surgery at the Innsbruck Medical University, 78 patients (0.45%) underwent tumourectomy of primary cardiac tumours. The majority of patients (63) suffered from a left or right atrial myxoma, 12 showed a papillary fibroelastoma of the valves at echocardiographical or histological examination, 1 suffered from a hemangioma, 1 from a chemodectoma, and another one from a rhabdomyosarcoma. The mean age of cardiac tumour patients was 54.29 ± 13.28 years (ranging from 18 to 83 years). 67.95% of the patients were female and 32.05% were male. The majority of tumours were found incidentally; 97.44% of the patients showed no tumour recurrence.</p>","PeriodicalId":73519,"journal":{"name":"ISRN cardiology","volume":" ","pages":"906109"},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5402/2012/906109","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"30759993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ISRN cardiologyPub Date : 2012-01-01Epub Date: 2012-06-21DOI: 10.5402/2012/706217
F Buendía-Fuentes, M A Arnau-Vives, A Arnau-Vives, Y Jiménez-Jiménez, J Rueda-Soriano, E Zorio-Grima, A Osa-Sáez, L V Martínez-Dolz, L Almenar-Bonet, M A Palencia-Pérez
{"title":"High-Bandpass Filters in Electrocardiography: Source of Error in the Interpretation of the ST Segment.","authors":"F Buendía-Fuentes, M A Arnau-Vives, A Arnau-Vives, Y Jiménez-Jiménez, J Rueda-Soriano, E Zorio-Grima, A Osa-Sáez, L V Martínez-Dolz, L Almenar-Bonet, M A Palencia-Pérez","doi":"10.5402/2012/706217","DOIUrl":"https://doi.org/10.5402/2012/706217","url":null,"abstract":"<p><p>Introduction. Artifactual variations in the ST segment may lead to confusion with acute coronary syndromes. Objective. To evaluate how the technical characteristics of the recording mode may distort the ST segment. Material and Method. We made a series of electrocardiograms using different filter configurations in 45 asymptomatic patients. A spectral analysis of the electrocardiograms was made by discrete Fourier transforms, and an accurate recomposition of the ECG signal was obtained from the addition of successive harmonics. Digital high-pass filters of 0.05 and 0.5 Hz were used, and the resulting shapes were compared with the originals. Results. In 42 patients (93%) clinically significant alterations in ST segment level were detected. These changes were only seen in \"real time mode\" with high-pass filter of 0.5 Hz. Conclusions. Interpretation of the ST segment in \"real time mode\" should only be carried out using high-pass filters of 0.05 Hz.</p>","PeriodicalId":73519,"journal":{"name":"ISRN cardiology","volume":" ","pages":"706217"},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5402/2012/706217","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"30750404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ISRN cardiologyPub Date : 2012-01-01DOI: 10.5402/2012/269680
Natalia A Trayanova
{"title":"Computational cardiology: the heart of the matter.","authors":"Natalia A Trayanova","doi":"10.5402/2012/269680","DOIUrl":"https://doi.org/10.5402/2012/269680","url":null,"abstract":"This paper reviews the newest developments in computational cardiology. It focuses on the contribution of cardiac modeling to the development of new therapies as well as the advancement of existing ones for cardiac arrhythmias and pump dysfunction. Reviewed are cardiac modeling efforts aimed at advancing and optimizing existent therapies for cardiac disease (defibrillation, ablation of ventricular tachycardia, and cardiac resynchronization therapy) and at suggesting novel treatments, including novel molecular targets, as well as efforts to use cardiac models in stratification of patients likely to benefit from a given therapy, and the use of models in diagnostic procedures.","PeriodicalId":73519,"journal":{"name":"ISRN cardiology","volume":"2012 ","pages":"269680"},"PeriodicalIF":0.0,"publicationDate":"2012-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5402/2012/269680","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9368589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}