Acute myocardial infarction in the elderly

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Intervensi Koroner Perkutan Primer untuk Infark Miokard Elevasi ST di Pusat Jantung Pemula di Indonesia: 100 pasien pertama

Background: The benefits of Primary percutaneous coronary intervention (PCI) for ST elevation myocardial infarction (STEMI) have been demon-strated, but most studies were conducted in experienced centres in western world. Experience, logistics and patient characteristics may differ in other parts of the world, particularly in a starting center.Methods: Data on all consecutive STEMI patients treated with primary PCI in Cinere hospital, Jakarta, Indonesia were collected in a prospective database.Results:,Between July 2006 and December 2008, a total of 100 patients with STEMI were treated by primary PCI. Mean age was 56.9 ±10.4 years (range 37-82), 88% was male. Mean time between onset of chest pain and admission was 369 ± 388 minutes. The mean time between admission and balloon inflation was 258 minutes. Before PCI, 50% of patients had TIMI 0 flow. After primary PCI 94% of patients had TIMI 2/3 flow. There were no deaths in the catheterisation room, and no emergency coronary bypass surgery was needed as a result of PCI complications. Mean left ventricular ejection fraction as measured by echocardiography after 1 day was 48 ± 12 %.Conclusions: Outcome after primary PCI at a starting center is excellent in this series. Primary PCI was effective in restoration of TIMI flow, without complications. Time delay between symptom onset, admission and balloon inflation was long and all efforts should be encouraged to shorten this.Latar belakang: Manfaat Intervensi perkutan primer (IKP) untuk Infark Miokard Elevasi ST (IMEST) telah terbukti, namun-demikian kebanyakan penelitian mengenai ini di laksanakan dipusat layanan jantung yang berpengalaman di dunia barat, Pengalaman , logistik dan karakteristik pasien mungkin berbeda di belahan dunia ini, terutama di pusat yang baru mulai.Metode: Seluruh data pasien konsekutif dengan IMEST yang ditangani dengan IKP primer di pusat jantung Cinere , Jakarta, Indonesia dihimpun melalui seperangkat data yang dilaksanakan secara propekstif.Hasil: Antara Juli 2006 dan Desember 2008, dari seluruh jumlah 100 pasien dengan IMEST yang ditangani dengan IKP primer. Rerata usia adalah 56,9 tahun ± 10,4 tahun (berkisar 37-82 tahun), 88 % diantaranya adalah pria. Rerata waktu antara onset nyeri dada dan masuk rumah sakit adalah 369 ± 388 menit. Rerata waktu antara masuk rumah sakit dengan inflasi balon adalah 258 menit. Sebelum IKP, 50 % pasien dengan aliran TIMI 0. Setelah IKP primer 94 % pasien memperoleh aliran TIMI 2/3. Tidak ada kematian didalam ruang kateterisasi maupun diperlukan tindakan bedah graft pintas arteri koroner yang gawat akibat komplikasi dari IKP. Rerata fraksi ejeksi yang diukur dengan ekokardiografi setelah 1 hari adalah 48±12 %.Kesimpulan: Hasil akhir yang diperoleh setelah IKP primer pada pusat jantung yang baru dimulai adalah baik pada serial ini. IKP primer efektif dalam memeperbaiki aliran TIMI, tanpa komplikasi. Keterlambatan waktu antara permulaan gejala, saat masuk dan inflasi balon masih panjang dan segala usaha harus diupayakan untuk memendekan waktu ini

Symptom-onset-to-balloon time and mortality in patients with acute myocardial infarction treated by primary angioplasty

AbstractObjectivesThe aim of the study was to evaluate the relationship between symptom-onset-to-balloon time and one-year mortality in patients with ST-segment elevation myocardial infarction (STEMI) treated by primary angioplasty.BackgroundDespite the prognostic implications demonstrated in patients with STEMI treated with thrombolysis, the impact of time-delay on prognosis in patients undergoing primary angioplasty has yet to be established.MethodsOur study population consisted of 1,791 patients with STEMI treated by primary angioplasty from 1994 to 2001. All clinical, angiographic and follow-up data were collected. Subanalyses were conducted according to patient risk profile at presentation and preprocedural Thrombolysis In Myocardial Infarction (TIMI) flow.ResultsA total of 103 patients (5.8%) had died at one year. Symptom-onset-to-balloon time was significantly associated with the rate of postprocedural TIMI 3 flow (p = 0.012), myocardial blush grade (p = 0.033), and one-year mortality (p = 0.02). A stronger linear association between symptom-onset-to-balloon time and one-year mortality was observed in non-low-risk patients (p = 0.006) and those with preprocedural TIMI flow 0 to 1 (p = 0.013). No relationship was found between door-to-balloon time and mortality. At multivariate analysis, a symptom-onset-to-balloon time >4 h was identified as an independent predictor of one-year mortality (p < 0.05).ConclusionsThis study shows that, in patients with STEMI treated by primary angioplasty, symptom-onset-to-balloon time, but not door-to-balloon time, is related to mortality, particularly in non–low-risk patients and in the absence of preprocedural anterograde flow. Furthermore, a symptom-onset-to-balloon time >4 h was identified as independent predictor of one-year mortality

Angiographic assessment of reperfusion in acute myocardial infarction by myocardial blush grade

Background-Angiographic successful reperfusion in acute myocardial infarction has been defined as TIMI 3 flow. However, TIMI 3 flow does not always result in effective myocardial reperfusion. Myocardial blush grade (MBG) is an angiographic measure of myocardial perfusion. We hypothesized that optimal angiographic reperfusion is defined by TIMI 3 flow and MBG 2 or 3. Methods and Results-In 924 consecutive patients with TIMI 3 flow after angioplasty for acute myocardial infarction, we prospectively studied the value of MBG. End points were death, MACE, enzymatic infarct size, and residual left ventricular ejection fraction. Follow-up was 16+/-11 months. Of the 924 patients, 101 (11%) patients had MBG 0 or 1. Mortality was significantly higher in patients with MBG 0 or 1 compared with patients with MBG 2 or 3 (relative risk, 4.7; 95% CI, 2.3 to 9.5; P Conclusions -MBG is a strong angiographic predictor of mortality in patients with TIMI 3 flow after primary angioplasty. Enzymatic infarct size is larger and residual left ventricular ejection fraction is lower in patients with MBG 0 or 1 compared with MBG 2 or 3. Angiographic definition of successful reperfusion should include both TIMI 3 flow as well as MBG 2 or 3

Correlation between clinical course and quantitative analysis of the ischemia related artery in patients with unstable angina pectoris, refractory to medical treatment

Patients with unstable angina, refractory to intensive medical therapy, are at high risk for developing thrombotic complications, such as recurrent ischemia, myocardial infarction and coronary occlusion during coronary angioplasty. As both platelet ag

Exercise and myocardial injury in hypertrophic cardiomyopathy

Objective: Troponin and high signal intensity on T2-weighted (HighT2) cardiovascular magnetic resonance imaging (CMRi) are both markers of myocardial injury in hypertrophic cardiomyopathy (HCM). The interplay between exercise and disease development remains uncertain in HCM. We sought to assess the occurrence of postexercise troponin rises and its determinants. Methods: Multicentre project on patients with HCM and mutation carriers without hypertrophy (controls). Participants performed a symptom limited bicycle test with hs-cTnT assessment pre-exercise and 6 hours postexercise. Pre-exercise CMRi was performed in patients with HCM to assess measures of hypertrophy and myocardial injury. Depending on baseline troponin (13 ng/L), a rise was defined as a >50% or >20% increase, respectively. Results: Troponin rises occurred in 18% (23/127) of patients with HCM and 4% (2/53) in mutation carriers (p=0.01). Comparing patients with HCM with and without a postexercise troponin rise, maximum heart rates (157±19 vs 143±23, p=0.004) and maximal wall thickness (20 mm vs 17 mm, p=0.023) were higher in the former, as was the presence of late gadolinium enhancement (85% vs 57%, p=0.02). HighT2 was seen in 65% (13/20) and 19% (15/79), respectively (p<0.001). HighT2 was the only independent predictor of troponin rise (adjusted odds ratio 7.9; 95% CI 2.7 to 23.3; p<0.001). Conclusions: Postexercise troponin rises were seen in about 20% of patients with HCM, almost five times more frequent than in mutation carriers. HighT2 on CMRi may identify a group of particularly vulnerable patients, supporting the concept that HighT2 reflects an active disease state, prone to additional injury after a short episode of high oxygen demand

Levels and trends in cardiovascular risk factors and drug treatment in 4837 elderly Dutch myocardial infarction patients between 2002 and 2006

Background It is important to gain insight into opportunities for secondary prevention of cardiovascular disease. Our aim was to investigate levels and trends in cardiovascular risk factors and drug treatment in Dutch post-myocardial infarction (MI) patients between 2002 and 2006 and to make comparisons with the EUROASPIRE surveys (1999-2007). Methods We analysed data from 4837 post-MI patients (aged 69 years, 78% men) from 32 Dutch hospitals, using baseline cross-sectional data from the Alpha Omega Trial. Results Between 2002 and 2006, significant declines were found in the prevalence of smoking (23% to 16%, p<0.001), hypercholesterolaemia (≥5 mmol/l; 54% to 27%, p<0.0001) and hypertension (≥140/90 mmHg; 58% to 48%, p<0.001). The prevalence of antithrombotic drugs was high (97%). The prevalence of lipid-modifying drugs and antihypertensives was high, and increased (74% to 90%, p<0.0001 and 82% to 93%, p<0.001, respectively). The prevalence of obesity (27%) was high in 2002 and decreased to 24% in 2006, albeit not significantly. Diabetes prevalence was high and increased between 2002 and 2006 (18% to 22%, p00.02). In comparison with EUROASPIRE patients, who were on average 8-10 years younger, our study in 2006 included patients with lower levels of obesity, hypertension, hypercholesterolaemia, diabetes and lower use of antiplatelets and β-blockers, but similar levels of lipid-modifying drugs. Conclusions This study showed that older Dutch post-MI patients were adequately treated with drugs, and that risk factors reached lower levels than in the younger EUROASPIRE patients. However, there is room for improvement in diet and lifestyle, given the high prevalence of smoking, obesity, and diabetes

Prediction of Extensive Myocardial Fibrosis in Nonhigh Risk Patients With Hypertrophic Cardiomyopathy

In nonhigh risk patients with hypertrophic cardiomyopathy (HC), the presence of extensive late gadolinium enhancement (LGE(ext)) at cardiovascular magnetic resonance (CMR) imaging has been proposed as a risk modifier in the decision process for implantable cardioverter defibrillator implantation. With a pretest risk of about 10%, a strategy that alters the likelihood of LGE(ext) could markedly affect efficacious CMR imaging. Our aim was to study the potential of clinical variables and biomarkers to predict LGE(ext). In 98 HC patients without any clear indication for implantable cardioverter defibrillator implantation, we determined the discriminative values of a set of clinical variables and a panel of biomarkers (hs-cTnT, NTproBNP, GDF-15, and Gal-3, CICP) for LGE, t that is, LGE >15% of the left ventricular mass. LGE(ext) was present in 10% (10/98) of patients. The clinical prediction model contained a history of nonsustained ventricular tachycardia, maximal wall thickness and reduced systolic function (c-statistic: 0.868,

Continuously improving the practice of cardiology

Guidelines for the management of patients with cardiovascular disease are designed to assist cardiologists and other physicans in their practice. Surveys are conducted to assess whether guidelines are followed in practice. The results of surveys on acute coronary syndromes, coronary revascularisation, secondary prevention, valvular heart disease and heart failure are presented. Comparing surveys conducted between 1995 and 2002, a gradual improvement in use ofsecondary preventive therapy is observed. Nevertheless, important deviations from established guidelines are noted, with a significant variation among different hospitals in the Netherlands and in other European countries. Measures for fiuther improvement of clinical practice indude more rapid treatment of patients with evolving myocardial infarction, more frequent use of clopidogrel and glycoprotein IIb/IIIa receptor blockers in patients with acute coronary syndromes, more frequent use of 5-blockers in patients with heart failure and more intense measures to encourage patients to stop smoking. Targets for the proportion ofpatients who might receive specific therapies are presented