Dataset Information

Missed Opportunities in Implementation and Optimization of Lipid-Lowering Therapies in Very-High-Risk Patients Presenting with ST-Segment Elevation Myocardial Infarction.

ABSTRACT: The aim of this retrospective study was to provide real-world data on lipid-lowering therapy (LLT) implementation and low-density lipoprotein cholesterol (LDL-C) target achievement in an ST-segment elevation myocardial infarction (STEMI) population, with a focus on very-high-risk patients according to European guidelines criteria.

Methods

Included were all STEMI patients with available LDL-C and total cholesterol treated at a large tertiary center in Salzburg, Austria, 2018-2020 (n = 910), with stratification into very-high-risk cohorts. Analysis was descriptive, with variables reported as number, percentages, median, and interquartile range.

Results

Among patients with prior LLT use, statin monotherapy predominated, 5.3% were using high-intensity statins, 1.2% were using combined ezetimibe therapy, and none were taking PCSK9 inhibitors at the time of STEMI. In very-high-risk secondary prevention cohorts, LLT optimization was alarmingly low: 8-22% of patients were taking high-intensity statins, just 0-6% combined with ezetimibe. Depending on the very-high-risk cohort, 27-45% of secondary prevention patients and 58-73% of primary prevention patients were not taking any LLTs, although 19-60% were actively taking/prescribed medications for hypertension and/or diabetes mellitus. Corresponding LDL-C target achievement in all very-high-risk cohorts was poor: <22% of patients had LDL-C values < 55 mg/dL at the time of STEMI.

Conclusion

Severe shortcomings in LLT implementation and optimization, and LDL-C target achievement, were observed in the total STEMI population and across all very-high-risk cohorts, attributable in part to deficits in care delivery.

SUBMITTER: Kopp K

PROVIDER: S-EPMC10488884 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature

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Publications

Missed Opportunities in Implementation and Optimization of Lipid-Lowering Therapies in Very-High-Risk Patients Presenting with ST-Segment Elevation Myocardial Infarction.

Kopp Kristen K Motloch Lukas L Berezin Alexander A Maringgele Victoria V Ostapenko Halyna H Mirna Moritz M Schmutzler Lukas L Dieplinger Anna A Hoppe Uta C UC Lichtenauer Michael M

Journal of clinical medicine 20230831 17

The aim of this retrospective study was to provide real-world data on lipid-lowering therapy (LLT) implementation and low-density lipoprotein cholesterol (LDL-C) target achievement in an ST-segment elevation myocardial infarction (STEMI) population, with a focus on very-high-risk patients according to European guidelines criteria.<h4>Methods</h4>Included were all STEMI patients with available LDL-C and total cholesterol treated at a large tertiary center in Salzburg, Austria, 2018-2020 (<i>n</i> ...[more]

PMID: 37685752

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Project description:Background Adenosine is used to treat no-reflow in the infarct-related artery (IRA) during ST-segment-elevation myocardial infarction intervention. However, the physiological effect of adenosine in the IRA is variable. Coronary steal-a reduction of blood flow to the distal coronary bed-can occur in response to adenosine and this is facilitated by collaterals. We investigated the effects of adenosine on coronary flow reserve (CFR) in patients presenting with ST-segment-elevation myocardial infarction to better understand the physiological mechanism underpinning the variable response to adenosine. Methods and Results Pressure-wire assessment of the IRA after percutaneous coronary intervention was performed in 93 patients presenting with ST-segment-elevation myocardial infarction to calculate index of microvascular resistance, CFR, and collateral flow index by pressure. Modified collateral Rentrop grade to the IRA was recorded, as was microvascular obstruction by cardiac magnetic resonance imaging. Coronary steal (CFR <0.9), no change in flow (CFR=0.9-1.1), and hyperemic flow (CFR >1.1) after adenosine occurred in 19 (20%), 15 (16%), and 59 (63%) patients, respectively. Patients with coronary steal had higher modified Rentrop score to the IRA (1 [0, 1.75] versus 0 [0, 1], P<0.001) and a higher collateral flow index by pressure (0.25±0.10 versus 0.15±0.10, P=0.004) than the hyperemic group. The coronary steal group also had significantly higher index of microvascular resistance (61.68 [28.13, 87.04] versus 23.93 [14.67, 37.00], P=0.006) and had more disease (stenosis >50%) in the donor arteries (52.63% versus 22.03%, P=0.02) than the hyperemic group. Conclusions Adenosine-induced coronary steal may be responsible for a reduction in coronary flow reserve in a proportion of patients presenting with ST-segment-elevation myocardial infarction. Registration URL: https://www.clinicaltrials.gov; Unique identifier: NCT03145194. URL: https://www.isrctn.com; Unique identifier: ISRCTN3176727.

Project description:ImportanceChallenges to improving ST-segment elevation myocardial infarction (STEMI) care are formidable in low- to middle-income countries because of several system-level factors.ObjectiveTo examine access to reperfusion and percutaneous coronary intervention (PCI) during STEMI using a hub-and-spoke model.Design, setting, and participantsThis multicenter, prospective, observational study of a quality improvement program studied 2420 patients 20 years or older with symptoms or signs consistent with STEMI at primary care clinics, small hospitals, and PCI hospitals in the southern state of Tamil Nadu in India. Data were collected from the 4 clusters before implementation of the program (preimplementation data). We required a minimum of 12 weeks for the preimplementation data with the period extending from August 7, 2012, through January 5, 2013. The program was then implemented in a sequential manner across the 4 clusters, and data were collected in the same manner (postimplementation data) from June 12, 2013, through June 24, 2014, for a mean 32-week period.ExposuresCreation of an integrated, regional quality improvement program that linked the 35 spoke health care centers to the 4 large PCI hub hospitals and leveraged recent developments in public health insurance schemes, emergency medical services, and health information technology.Main outcomes and measuresPrimary outcomes focused on the proportion of patients undergoing reperfusion, timely reperfusion, and postfibrinolysis angiography and PCI. Secondary outcomes were in-hospital and 1-year mortality.ResultsA total of 2420 patients with STEMI (2034 men [84.0%] and 386 women [16.0%]; mean [SD] age, 54.7 [12.2] years) (898 in the preimplementation phase and 1522 in the postimplementation phase) were enrolled, with 1053 patients (43.5%) from the spoke health care centers. Missing data were common for systolic blood pressure (213 [8.8%]), heart rate (223 [9.2%]), and anterior MI location (279 [11.5%]). Overall reperfusion use and times to reperfusion were similar (795 [88.5%] vs 1372 [90.1%]; P = .21). Coronary angiography (314 [35.0%] vs 925 [60.8%]; P < .001) and PCI (265 [29.5%] vs 707 [46.5%]; P < .001) were more commonly performed during the postimplementation phase. In-hospital mortality was not different (52 [5.8%] vs 85 [5.6%]; P = .83), but 1-year mortality was lower in the postimplementation phase (134 [17.6%] vs 179 [14.2%]; P = .04), and this difference remained consistent after multivariable adjustment (adjusted odds ratio, 0.76; 95% CI, 0.58-0.98; P = .04).Conclusions and relevanceA hub-and-spoke model in South India improved STEMI care through greater use of PCI and may improve 1-year mortality. This model may serve as an example for developing STEMI systems of care in other low- to middle-income countries.

Dataset Information

Missed Opportunities in Implementation and Optimization of Lipid-Lowering Therapies in Very-High-Risk Patients Presenting with ST-Segment Elevation Myocardial Infarction.

Methods

Results

Conclusion

Publications

Missed Opportunities in Implementation and Optimization of Lipid-Lowering Therapies in Very-High-Risk Patients Presenting with ST-Segment Elevation Myocardial Infarction.

Similar Datasets

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