scholarly journals Bivalirudin Versus Heparin Monotherapy in Elderly Patients With Myocardial Infarction

Author(s):  
Axel Wester ◽  
Rubina Attar ◽  
Moman A. Mohammad ◽  
Nazim Isma ◽  
Stefan James ◽  
...  

Background: Elderly patients with acute myocardial infarction undergoing percutaneous coronary intervention are at increased risk of both ischemic and bleeding complications. The optimal anticoagulation strategy in these patients is uncertain. Therefore, we compared bivalirudin to heparin monotherapy in a contemporary cohort of such patients. Methods: A prespecified subgroup analysis of elderly patients with myocardial infarction (≥75 years) from the VALIDATE-SWEDEHEART trial (Bivalirudin Versus Heparin in ST-Segment and Non–ST-Segment Elevation Myocardial Infarction in Patients on Modern Antiplatelet Therapy in the Swedish Web System for Enhancement and Development of Evidence-Based Care in Heart Disease Evaluated According to Recommended Therapies Registry Trial) was performed. In the trial, patients were randomized to either bivalirudin or heparin monotherapy during percutaneous coronary intervention, with mandatory potent P2Y12 inhibition, routine radial artery access, and only bail-out glycoprotein IIb/IIIa inhibition. Kaplan-Meier event rates were assessed for the primary end point, consisting of a composite of all-cause death, myocardial reinfarction, or major bleeding, within 180 days. Results: The elderly (n=1592) had more than twice the risk of all events compared with younger patients (n=4406). Baseline and periprocedural characteristics were equal between bivalirudin (n=799) and heparin (n=793) treated patients ≥75 years. No differences were found in the elderly between bivalirudin and heparin monotherapy regarding the primary end point (180-day all-cause death, myocardial reinfarction, or major bleeding), the individual components of the primary end point, definite stent thrombosis, or stroke. Conclusions: In this prespecified subgroup analysis of the VALIDATE-SWEDEHEART trial, elderly patients with myocardial infarction had a highly increased risk of all events. However, no difference in outcomes could be observed with an anticoagulation strategy with either bivalirudin or heparin as monotherapy in this patient group.

Angiology ◽  
2016 ◽  
Vol 68 (1) ◽  
pp. 29-39 ◽  
Author(s):  
Zhenyu Liu ◽  
Johanne Silvain ◽  
Mathieu Kerneis ◽  
Olivier Barthélémy ◽  
Laurent Payot ◽  
...  

Elderly (≥75 years old) patients with ST-segment elevation myocardial infarction (STEMI) have higher ischemic and bleeding risk compared with those <75 years old. We investigated the efficacy and safety of intravenous (IV) enoxaparin versus IV unfractionated heparin (UFH) in elderly patients undergoing primary percutaneous coronary intervention (PCI) for STEMI. A prespecified analysis of the Acute Myocardial Infarction Treated with Primary Angioplasty and Intravenous Enoxaparin or Unfractionated Heparin to Lower Ischemic and Bleeding Events at Short- and Long-term Follow-up (ATOLL) study was performed examining the 30-day outcomes in the elderly patients. Of the 165 elderly patients in the ATOLL study, 85 patients received IV enoxaparin 0.5 mg/kg and 80 patients received IV UFH. Intravenous enoxaparin did not reduce the primary end point, the main secondary efficacy end point, major bleeding, major or minor bleeding, and all-cause mortality compared with IV UFH. The rate of minor bleeding (5.9% vs 22.8%, Padjusted = .01) was significantly lower with IV enoxaparin compared with IV UFH. Intravenous enoxaparin appears to be a safe alternative to IV UFH in primary PCI of the elderly patients with STEMI.


2021 ◽  
Author(s):  
Ching-Hui Sia ◽  
Junsuk Ko ◽  
Huili Zheng ◽  
Andrew Ho ◽  
David Foo ◽  
...  

Abstract Smoking is one of the leading risk factors for cardiovascular diseases, including ischemic heart disease and hypertension. However, in acute myocardial infarction (AMI) patients, smoking has been associated with better clinical outcomes, a phenomenon termed the “smoker’s paradox.” Given the known detrimental effects of smoking on the cardiovascular system, it has been proposed that the beneficial effects of smoking on outcomes is due to age differences between smokers and non-smokers and is therefore a smoker’s pseudoparadox. The aim of this study was to evaluate the association between smoking status and clinical outcomes in ST-segment elevation (STEMI) and non-STEMI (NSTEMI) patients treated by percutaneous coronary intervention (PCI), using a national multi-ethnic Asian registry. In unadjusted analyses, current smokers had better clinical outcomes following STEMI and NSTEMI. However, after adjusting for age, the protective effect of smoking was lost, confirming a smoker’s pseudoparadox. Interestingly, although current smokers had increased risk for recurrent MI within 1 year after PCI in both STEMI and NSTEMI patients, there was no increase in mortality. In summary, we confirm the existence of a smoker’s pseudoparadox in a multi-ethnic Asian cohort of STEMI and NSTEMI patients and report increased risk of recurrent MI, but not mortality, in smokers.


2020 ◽  
Vol 65 (3) ◽  
pp. 81-88
Author(s):  
Pınar D Gündoğmuş ◽  
Emrah B Ölçü ◽  
Ahmet Öz ◽  
İbrahim H Tanboğa ◽  
Ahmet L Orhan

Introduction Although it is recommended that elderly patients with non-ST-segment elevation myocardial infarction (NSTEMI) should undergo an assessment for invasive revascularization, these patients undergo fewer coronary interventions despite the current guidelines. The aim of the study is to evaluate the effectiveness of percutaneous coronary intervention on all-cause mortalities monthly and annually in the population. Methods Three hundred and twenty-four patients with NSTEMI aged 65 years or older who underwent coronary angiography and treated with conservative strategy or percutaneous coronary intervention were included in the study. All demographic and clinical characteristics of the patients were recorded and one-month and one-year follow-up results were analysed. Results Two hundred eight cases (64.19%) were treated with percutaneous coronary intervention and 116 cases (35.81%) of the participant were treated with conservative methods. The mean age of the participants was 75.41 ± 6.65 years. The treatment strategy was an independent predictor for the mortality of one-year (HR: 1.965). Furthermore, Killip class ≥2 (HR:2.392), Left Ventricular Ejection Fraction (HR:2.637) and renal failure (HR: 3.471) were independent predictors for one-year mortality. Conclusion The present study has revealed that percutaneous coronary intervention was effective on one-year mortality in NSTEMI patients over the age of 65. It is considered that percutaneous coronary intervention would decrease mortality in these patients but it should be addressed in larger population studies.


Author(s):  
Pietro Di Santo ◽  
Trevor Simard ◽  
George A. Wells ◽  
Richard G. Jung ◽  
F. Daniel Ramirez ◽  
...  

Background: Transradial access (TRA) has emerged as the preferred vascular access site for coronary angiography and percutaneous coronary intervention. This systematic review and meta-analysis was performed to evaluate 30-day all-cause mortality comparing TRA with transfemoral access for percutaneous coronary intervention in patients with ST-segment–elevation myocardial infarction. Methods: We performed a systematic literature search and meta-analysis of randomized controlled studies published from inception until January 7, 2020, in MEDLINE, EMBASE, Cochrane Central Register of Controlled Trials, and Web of Science Core Collection. Preferred Reported Items for Systematic Reviews and Meta-Analyses guidelines were used for abstracting data. The primary outcome was all-cause mortality at 30 days. Secondary outcomes included myocardial infarction, major bleeding, stroke, and access site complications. Results: A total of 14 studies representing 11 707 patients (5802 patients with TRA; 5905 patients with transfemoral access) were included in this systematic review. All-cause mortality (N=8 studies) was significantly reduced in the TRA group with an overall risk ratio (RR) of 0.72 (95% CI, 0.56–0.92) in the pooled analysis. Major bleeding (N=12 studies; RR, 0.60 [95% CI, 0.45–0.80]) and access site complications (N=9 studies; RR, 0.40 [95% CI, 0.30–0.53]) were significantly higher in the transfemoral access group. There was no statistical difference in reinfarction (N=10 studies; RR, 0.96 [95% CI, 0.75–1.25]) or stroke (N=8 studies; RR, 1.47 [95% CI, 0.87–2.50]). Conclusions: TRA is associated with lower 30-day mortality, major bleeding, and access site complications when compared with transfemoral access in ST-segment–elevation myocardial infarction patients who undergo percutaneous coronary intervention. Registration: URL: https://www.crd.york.ac.uk/PROSPERO/ ; Unique identifier: 127955.


Author(s):  
Julia Stehli ◽  
Diem Dinh ◽  
Misha Dagan ◽  
Stephen J. Duffy ◽  
Angela Brennan ◽  
...  

Background Women with ST‐segment–elevation myocardial infarction experience delays in reperfusion compared with men with little data on each time component from symptom onset to reperfusion. This study analyzed sex discrepancies in patient delays, prehospital system delays, and hospital delays. Methods and Results Consecutive patients with ST‐segment–elevation myocardial infarction treated with percutaneous coronary intervention across 30 hospitals in the Victorian Cardiac Outcomes Registry (2013–2018) were analyzed. Data from the Ambulance Victoria Data warehouse were used to perform linkage to the Victorian Cardiac Outcomes Registry for all patients transported via emergency medical services (EMS). The primary end point was EMS call‐to‐door time (prehospital system delay). Secondary end points included symptom‐to‐EMS call time (patient delay), door‐to‐device time (hospital delay), 30‐day mortality, major adverse cardiovascular events, and major bleeding. End points were analyzed according to sex and adjusted for age, comorbidities, cardiogenic shock, cardiac arrest, and symptom onset time. A total of 6330 (21% women) patients with ST‐segment–elevation myocardial infarction were transported by EMS. Compared with men, women had longer adjusted geometric mean symptom‐to‐EMS call times (47.0 versus 44.0 minutes; P <0.001), EMS call‐to‐door times (58.1 versus 55.7 minutes; P <0.001), and door‐to‐device times (58.5 versus 54.9 minutes; P =0.006). Compared with men, women had higher 30‐day mortality (odds ratio [OR], 1.38; 95% CI, 1.06–1.79; P =0.02) and major bleeding (OR, 1.54; 95% CI, 1.08–2.20; P =0.02). Conclusions Female patients with ST‐segment–elevation myocardial infarction experienced excess delays in patient delays, prehospital system delays, and hospital delays, even after adjustment for confounders. Prehospital system and hospital delays resulted in an adjusted excess delay of 10 minutes compared with men.


Angiology ◽  
2019 ◽  
Vol 71 (1) ◽  
pp. 38-47 ◽  
Author(s):  
Side Gao ◽  
Qingbo Liu ◽  
Xiaosong Ding ◽  
Hui Chen ◽  
Xueqiao Zhao ◽  
...  

This study investigated whether a novel index of stress hyperglycemia might have a better prognostic value compared to admission glycemia alone in patients with ST-segment elevation myocardial infarction (STEMI) undergoing percutaneous coronary intervention (PCI). The acute-to-chronic glycemic ratio was expressed as admission blood glucose (ABG) devided by the estimated average glucose (eAG), and eAG was derived from the glycated hemoglobin (HbA1c). A total of 1300 consecutive patients with STEMI treated with PCI were included. Baseline data and outcomes were analyzed. The study end point was a composite of in-hospital all-cause death, cardiogenic shock, and acute pulmonary edema. Accuracy was defined with area under the curve (AUC) by a receiver–operating characteristic (ROC) curve analysis. After multivariate adjustment, both ABG/eAG and ABG were closely associated with an increased risk of the composite end point in nondiabetic patients. However, only ABG/eAG (odds ratio = 2.45, 95% confidence interval: 1.24-4.82, P = .010), instead of ABG, was associated with the outcomes in diabetic patients. Compared to ABG, ABG/eAG had an equivalent predictive value in nondiabetic patients but a superior discriminatory ability in diabetic patients (AUC improved from 0.52-0.63, P < .001). Taken together, ABG/eAG provides more significant in-hospital prognostic information than ABG in diabetic patients with STEMI after PCI.


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