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All Outputs (143)

Effect of Comorbidity On Unplanned Readmissions After Percutaneous Coronary Intervention (From The Nationwide Readmission Database). (2018)
Journal Article
Kwok, C., Mamas, M., Martinez, S., Pancholy, S., Ahmed, W., Al-Shaibi, K., …Curzen, N. (2018). Effect of Comorbidity On Unplanned Readmissions After Percutaneous Coronary Intervention (From The Nationwide Readmission Database). Scientific reports, 11156 -?. https://doi.org/10.1038/s41598-018-29303-y

It is unclear how comorbidity influences rates and causes of unplanned readmissions following percutaneous coronary intervention (PCI). We analyzed patients in the Nationwide Readmission Database who were admitted to hospital between 2010 and 2014. T... Read More about Effect of Comorbidity On Unplanned Readmissions After Percutaneous Coronary Intervention (From The Nationwide Readmission Database)..

Discharge Against Medical Advice After Percutaneous Coronary Intervention in the United States (2018)
Journal Article
Al Shaibi, K., Gulati, R., Bell, M., Anderson, V., Potts, J., Rashid, M., …Kwok, C. (2018). Discharge Against Medical Advice After Percutaneous Coronary Intervention in the United States. JACC. Cardiovascular interventions, 1354-1364. https://doi.org/10.1016/j.jcin.2018.03.049

Discharge against medical advice (DAMA) in the context of PCI has not been described in the literature. Among the 2,021,104 patients, the proportion of patients who DAMA was 0.5% (n=10,049). Important predictors of DAMA included diagnosis of acute my... Read More about Discharge Against Medical Advice After Percutaneous Coronary Intervention in the United States.

Relation Between Age and Unplanned Readmissions After Percutaneous Coronary Intervention (Findings From The Nationwide Readmission Database) (2018)
Journal Article
Martinez, S., Rao, S., Gilchrist, I., Kwok, C., Al Ayoubi, F., Myint, P., …Kontopantelis, E. (2018). Relation Between Age and Unplanned Readmissions After Percutaneous Coronary Intervention (Findings From The Nationwide Readmission Database). American Journal of Cardiology, 220-228. https://doi.org/10.1016/j.amjcard.2018.03.367

It is unclear how age affects rates and causes of unplanned early readmissions after per cutaneous coronary intervention (PCI). We analyzed patients in the Nationwide Readmission Database in the United States from 2010 to 2014 and examined the impact... Read More about Relation Between Age and Unplanned Readmissions After Percutaneous Coronary Intervention (Findings From The Nationwide Readmission Database).

Using electronic health records to quantify and stratify the severity of type 2 diabetes in primary care in England: rationale and cohort study design (2018)
Journal Article
Mamas, Chew-Graham, & Mallen. (2018). Using electronic health records to quantify and stratify the severity of type 2 diabetes in primary care in England: rationale and cohort study design. BMJ Open, https://doi.org/10.1136/bmjopen-2017-020926

Introduction: The increasing prevalence of type 2 diabetes (T2DM) presents a significant burden on affected individuals and health-care systems internationally. There is, however, no agreed validated measure to infer diabetes severity from electronic... Read More about Using electronic health records to quantify and stratify the severity of type 2 diabetes in primary care in England: rationale and cohort study design.

Health economic analysis of access site practice in England during changes in practice: Insights from the British Cardiovascular Interventional Society (2018)
Journal Article
Mamas, M., Tosh, J., Hulme, W., Hoskins, N., Bungey, G., Ludman, P., …Kontopantelis, E. (2018). Health economic analysis of access site practice in England during changes in practice: Insights from the British Cardiovascular Interventional Society. Circulation: Cardiovascular Quality and Outcomes, 11(5), https://doi.org/10.1161/circoutcomes.117.004482

Background: Transradial access (TRA) for percutaneous coronary intervention (PCI) is associated with a reduced risk of mortality compared with transfemoral access, access site–related bleeding complications, and shorter length of stay. The budget imp... Read More about Health economic analysis of access site practice in England during changes in practice: Insights from the British Cardiovascular Interventional Society.

Type 2 diabetes mellitus and heart failure: a position statement from the Heart Failure Association of the European Society of Cardiology (2018)
Journal Article
Mamas. (2018). Type 2 diabetes mellitus and heart failure: a position statement from the Heart Failure Association of the European Society of Cardiology. European Journal of Heart Failure, 853-872. https://doi.org/10.1002/ejhf.1170

The coexistence of type 2 diabetes mellitus (T2DM) and heart failure (HF), either with reduced (HFrEF) or preserved ejection fraction (HFpEF), is frequent (30–40% of patients) and associated with a higher risk of HF hospitalization, all-cause and car... Read More about Type 2 diabetes mellitus and heart failure: a position statement from the Heart Failure Association of the European Society of Cardiology.

Accelerated patent haemostasis using a procoagulant disk: a protocol designed to minimise the risk of radial artery occlusion following cardiac catheterisation (2018)
Journal Article
Ayyaz Ul Haq, M., Nazir, S. A., Rashid, M., Shing Kwok, C., Mubashiruddin, S., Alisiddiq, Z., …Nolan, J. (2019). Accelerated patent haemostasis using a procoagulant disk: a protocol designed to minimise the risk of radial artery occlusion following cardiac catheterisation. Cardiovascular Revascularization Medicine, 20(2), 137-142. https://doi.org/10.1016/j.carrev.2018.03.026

Purpose Radial artery occlusion flowing cardiac catheterisation has been linked to flow reduction and prolonged compression. We investigate whether these factors can be optimised following transradial cardiac catheterisation by using an accelerated... Read More about Accelerated patent haemostasis using a procoagulant disk: a protocol designed to minimise the risk of radial artery occlusion following cardiac catheterisation.

Same-day Inter-Facility Transfer for Percutaneous Coronary Intervention (2018)
Journal Article
Israeli, Z., Lavi, S., Bertand, O. F., & Mamas, M. (2018). Same-day Inter-Facility Transfer for Percutaneous Coronary Intervention. Journal of Interventional Cardiology, 230-235. https://doi.org/10.1111/joic.12486

Background: The use of radial approach for coronary angiography, followed by same-day inter-facility transfer for percutaneous coronary intervention (PCI) has not yet been evaluated. We sought to assess the safety and feasibility of using the transra... Read More about Same-day Inter-Facility Transfer for Percutaneous Coronary Intervention.

Burden of 30-day readmissions after PCI in 824,747 patients in the USA: predictors, causes and cost. Insights from the Nationwide Readmission Database (2018)
Journal Article
Rashid, M., Curzen, N., Nolan, J., Bagur, R., Mamas, M., Potts, J., …Kwok, C. (2018). Burden of 30-day readmissions after PCI in 824,747 patients in the USA: predictors, causes and cost. Insights from the Nationwide Readmission Database. JACC. Cardiovascular interventions, 655-674. https://doi.org/10.1016/j.jcin.2018.01.248

Objectives This study aimed to examine the 30-day unplanned readmissions rate, predictors of readmission, causes of readmissions, and clinical impact of readmissions after percutaneous coronary intervention (PCI). Background Unplanned rehospital... Read More about Burden of 30-day readmissions after PCI in 824,747 patients in the USA: predictors, causes and cost. Insights from the Nationwide Readmission Database.

A Multiple-Model Generalisation of Updating Clinical Prediction Models (2018)
Journal Article
Mamas. (2018). A Multiple-Model Generalisation of Updating Clinical Prediction Models. Statistics in Medicine, 1343-1358. https://doi.org/10.1002/sim.7586

There is growing interest in developing clinical prediction models (CPMs) to aid local healthcare decision-making. Frequently, these CPMs are developed in isolation across different populations, with repetitive de novo derivation a common modelling s... Read More about A Multiple-Model Generalisation of Updating Clinical Prediction Models.

Effect of Gender On Unplanned Readmissions After Percutaneous Coronary Intervention (From The Nationwide Readmissions Database) (2018)
Journal Article
Kwok, C., Potts, J., Gulati, M., Alasnag, M., Rashid, M., Shoaib, A., …Mamas, M. (2018). Effect of Gender On Unplanned Readmissions After Percutaneous Coronary Intervention (From The Nationwide Readmissions Database). American Journal of Cardiology, 810-817. https://doi.org/10.1016/j.amjcard.2017.12.032

Women who undergo percutaneous coronary intervention (PCI) are at higher risk of adverse outcomes compared with men, but it is unknown whether gender affects early unplanned rehospitalization. We analyzed 832,753 patients who underwent PCI from 2013... Read More about Effect of Gender On Unplanned Readmissions After Percutaneous Coronary Intervention (From The Nationwide Readmissions Database).

Comorbidity health pathways in heart failure patients: A sequences-of-regressions analysis using cross-sectional data from 10,575 patients in the Swedish Heart Failure Registry (2018)
Journal Article
Mamas, & Solis-Trapala. (2018). Comorbidity health pathways in heart failure patients: A sequences-of-regressions analysis using cross-sectional data from 10,575 patients in the Swedish Heart Failure Registry. PLoS Medicine, https://doi.org/10.1371/journal.pmed.1002540

Background Optimally treated heart failure (HF) patients often have persisting symptoms and poor health-related quality of life. Comorbidities are common, but little is known about their impact on these factors, and guideline-driven HF care remains... Read More about Comorbidity health pathways in heart failure patients: A sequences-of-regressions analysis using cross-sectional data from 10,575 patients in the Swedish Heart Failure Registry.

Operator volume is not associated with mortality following Percutaneous Coronary Intervention: insights from the British Cardiovascular Intervention Society registry (2018)
Journal Article
Mamas. (2018). Operator volume is not associated with mortality following Percutaneous Coronary Intervention: insights from the British Cardiovascular Intervention Society registry. European Heart Journal, 1623-1634. https://doi.org/10.1093/eurheartj/ehy125

Aims The relationship between operator volume and outcomes for percutaneous coronary intervention (PCI) has been studied in the past, but recent analyses of national data covering the modern radial, acute coronary syndrome-dominant era are limited.... Read More about Operator volume is not associated with mortality following Percutaneous Coronary Intervention: insights from the British Cardiovascular Intervention Society registry.

Increasing socio-economic gap between the young and old: temporal trends in health and overall deprivation in England by age, sex, urbanity and ethnicity, 2004 to 2015 (2018)
Journal Article
Mamas. (2018). Increasing socio-economic gap between the young and old: temporal trends in health and overall deprivation in England by age, sex, urbanity and ethnicity, 2004 to 2015. Journal of Epidemiology and Community Health, 636-644. https://doi.org/10.1136/jech-2017-209895

Background: At a low geographical level, little is known about the associations between population characteristics and deprivation, and their trends, which would be directly affected by the house market, labour pressures and government policies. We d... Read More about Increasing socio-economic gap between the young and old: temporal trends in health and overall deprivation in England by age, sex, urbanity and ethnicity, 2004 to 2015.

Multimorbidity and survival for patients with acute myocardial infarction in England and Wales: Latent class analysis of a nationwide population-based cohort (2018)
Journal Article
Mamas. (2018). Multimorbidity and survival for patients with acute myocardial infarction in England and Wales: Latent class analysis of a nationwide population-based cohort. PLoS Medicine, e1002501. https://doi.org/10.1371/journal.pmed.1002501

Background There is limited knowledge of the scale and impact of multimorbidity for patients who have had an acute myocardial infarction (AMI). Therefore, this study aimed to determine the extent to which multimorbidity is associated with long-term... Read More about Multimorbidity and survival for patients with acute myocardial infarction in England and Wales: Latent class analysis of a nationwide population-based cohort.

Vascular access site and outcomes in 58,870 patients undergoing PCI with a previous history of coronary bypass surgery: results from the British Cardiovascular Interventions Society National database (2018)
Journal Article
Mamas, M., & Nolan, J. (2018). Vascular access site and outcomes in 58,870 patients undergoing PCI with a previous history of coronary bypass surgery: results from the British Cardiovascular Interventions Society National database. JACC. Cardiovascular interventions, 482-492. https://doi.org/10.1016/j.jcin.2017.12.020

Objectives Using the British Cardiovascular Intervention Society percutaneous coronary intervention (PCI) database, access site choice and outcomes of patients undergoing PCI with previous coronary artery bypass grafting (CABG) were studied. Back... Read More about Vascular access site and outcomes in 58,870 patients undergoing PCI with a previous history of coronary bypass surgery: results from the British Cardiovascular Interventions Society National database.

The effect of pre-procedure sublingual nitroglycerin on radial artery diameter and Allen’s test outcome - relevance to transradial catheterization (2018)
Journal Article
Chong, A., Lo, T., George, S., Ratib, K., Mamas, M., & Nolan, J. (2018). The effect of pre-procedure sublingual nitroglycerin on radial artery diameter and Allen’s test outcome - relevance to transradial catheterization. Cardiovascular Revascularization Medicine, 19(2), 163-167. https://doi.org/10.1016/j.carrev.2017.07.016

Background The radial artery is increasingly used for cardiac procedures, but is a relatively small vessel that is prone to spasm when instrumented. Intra-arterial nitroglycerine has been shown to reduce radial spasm but first requires arterial acce... Read More about The effect of pre-procedure sublingual nitroglycerin on radial artery diameter and Allen’s test outcome - relevance to transradial catheterization.

Chronic morbidity, deprivation and primary medical care spending in England in 2015-16: a cross-sectional spatial analysis (2018)
Journal Article
Mamas. (2018). Chronic morbidity, deprivation and primary medical care spending in England in 2015-16: a cross-sectional spatial analysis. BMC Medicine, https://doi.org/10.1186/s12916-017-0996-0

Background Primary care provides the foundation for most modern health-care systems, and in the interests of equity, it should be resourced according to local need. We aimed to describe spatially the burden of chronic conditions and primary medical... Read More about Chronic morbidity, deprivation and primary medical care spending in England in 2015-16: a cross-sectional spatial analysis.