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Radial versus Femoral Approach for Left Ventricular Endomyocardial Biopsy. (2019)
Journal Article
Mamas. (2019). Radial versus Femoral Approach for Left Ventricular Endomyocardial Biopsy. EuroIntervention, 678-684. https://doi.org/10.4244/EIJ-D-18-01061

AIMS: Left ventricular endomyocardial biopsy (LV-EMB) is mostly performed via the femoral artery. We assessed the feasibility and safety of radial versus femoral access in patients undergoing LV-EMB. METHODS AND RESULTS: 264 patients from four countr... Read More about Radial versus Femoral Approach for Left Ventricular Endomyocardial Biopsy..

Temporal trends in relative survival following percutaneous coronary intervention (2019)
Journal Article
Mamas. (2019). Temporal trends in relative survival following percutaneous coronary intervention. BMJ Open, e024627 - ?. https://doi.org/10.1136/bmjopen-2018-024627

OBJECTIVE: Percutaneous coronary intervention (PCI) has seen substantial shifts in patient selection in recent years that have increased baseline patient mortality risk. It is unclear to what extent observed changes in mortality are attributable to b... Read More about Temporal trends in relative survival following percutaneous coronary intervention.

Temporal trends and inequalities in coronary angiography utilization in the management of non-ST-Elevation acute coronary syndromes in the U.S. (2019)
Journal Article
Savage, M., Rashid, M., Fischman, D., Gulati, M., Tamman, K., Potts, J., …Mamas, M. (2019). Temporal trends and inequalities in coronary angiography utilization in the management of non-ST-Elevation acute coronary syndromes in the U.S. Scientific reports, https://doi.org/10.1038/s41598-018-36504-y

Coronary angiography (CA) is the basis of an invasive management strategy in non-ST elevation acute coronary syndromes (NSTEACS). There are limited contemporary data on national temporal trends in utilization of CA in different patient subgroups. We... Read More about Temporal trends and inequalities in coronary angiography utilization in the management of non-ST-Elevation acute coronary syndromes in the U.S..

Cardiac implantable electronic device (CIED) infections are expensive and associated with prolonged hospitalisation: UK Retrospective Observational Study. (2019)
Journal Article
Mamas. (2019). Cardiac implantable electronic device (CIED) infections are expensive and associated with prolonged hospitalisation: UK Retrospective Observational Study. PloS one, https://doi.org/10.1371/journal.pone.0206611

Background There are limited reports outlining the financial cost of treating cardiac implantable electronic device (CIED) infection outside the United States. This study aimed to determine the average treatment cost of CIED infection in a large UK... Read More about Cardiac implantable electronic device (CIED) infections are expensive and associated with prolonged hospitalisation: UK Retrospective Observational Study..

Relation of Length of Stay to Unplanned Readmissions For Patients Who Undergo Elective Percutaneous Coronary Intervention (2019)
Journal Article
Gunning, M., Nolan, J., Kontopantelis, E., Bertrand, O., Kwok, C., Rao, S., …Mamas, M. (2019). Relation of Length of Stay to Unplanned Readmissions For Patients Who Undergo Elective Percutaneous Coronary Intervention. The American Journal of Cardiology, 123(1), 33-43. https://doi.org/10.1016/j.amjcard.2018.09.028

The cost of inpatient PCI procedure is related to LOS. It is unknown how LOS may be associated with readmission rates and costs of index PCI and readmissions in elective PCI. This study aims to evaluate rates, predictors, causes and costs associated... Read More about Relation of Length of Stay to Unplanned Readmissions For Patients Who Undergo Elective Percutaneous Coronary Intervention.

Erratum to pre-operative use of aspirin in patients undergoing coronary artery bypass grafting: a systematic review and updated meta-analysis (2018)
Journal Article
Solo, K., Lavi, S., Choudhury, T., Martin, J., Nevis, I. F., Kwok, C. S., …Bagur, R. (2018). Erratum to pre-operative use of aspirin in patients undergoing coronary artery bypass grafting: a systematic review and updated meta-analysis. Journal of thoracic disease, 10(12), E860-E860. https://doi.org/10.21037/jtd.2018.10.120

Pre-operative use of aspirin in patients undergoing coronary artery bypass grafting: a systematic review and updated meta-analysis In the article that appeared on Page 3444-3459, Vol 10, No 6 (June 2018) Issue of the Journal of Thoracic Disease (J... Read More about Erratum to pre-operative use of aspirin in patients undergoing coronary artery bypass grafting: a systematic review and updated meta-analysis.

Association of Medication Intensity and Stages of Airflow Limitation With the Risk of Hospitalization or Death in Patients With Heart Failure and Chronic Obstructive Pulmonary Disease (2018)
Journal Article
Mamas. (2018). Association of Medication Intensity and Stages of Airflow Limitation With the Risk of Hospitalization or Death in Patients With Heart Failure and Chronic Obstructive Pulmonary Disease. Journal of the American Medical Association, https://doi.org/10.1001/jamanetworkopen.2018.5489

IMPORTANCE In heart failure (HF), chronic obstructive pulmonary disease (COPD) increases the risk of poor outcomes, but the effect of COPD severity is unknown. This information is important for early intervention tailored to the highest-risk groups.... Read More about Association of Medication Intensity and Stages of Airflow Limitation With the Risk of Hospitalization or Death in Patients With Heart Failure and Chronic Obstructive Pulmonary Disease.

The impact of diabetes on the prognostic value of left ventricular function following percutaneous coronary intervention: Insights from the British Cardiovascular Intervention Society. (2018)
Journal Article
Mamas, & Rashid. (2018). The impact of diabetes on the prognostic value of left ventricular function following percutaneous coronary intervention: Insights from the British Cardiovascular Intervention Society. Catheterization and Cardiovascular Interventions, 393-402. https://doi.org/10.1002/ccd.27642

Objectives To study the relationship between diabetes mellitus (DM) and left ventricular (LV) function on outcomes following percutaneous coronary intervention (PCI). Background Methods DM is a growing public health challenge worldwide and a signific... Read More about The impact of diabetes on the prognostic value of left ventricular function following percutaneous coronary intervention: Insights from the British Cardiovascular Intervention Society..

One-Year Outcomes after PCI Strategies in Cardiogenic Shock. (2018)
Journal Article
Mamas. (2018). One-Year Outcomes after PCI Strategies in Cardiogenic Shock. New England Journal of Medicine, 1699 - 1710. https://doi.org/10.1056/NEJMoa1808788

BACKGROUND: Among patients with acute myocardial infarction, cardiogenic shock, and multivessel coronary artery disease, the risk of a composite of death from any cause or severe renal failure leading to renal-replacement therapy at 30 days was found... Read More about One-Year Outcomes after PCI Strategies in Cardiogenic Shock..

Correction to Lancet Public Health 2018; 3: 567–75 (2018)
Journal Article
Kontopantelis, E., Buchan, I., Webb, R. T., Ashcroft, D. M., Mamas, M. A., & Doran, T. (2018). Correction to Lancet Public Health 2018; 3: 567–75. The Lancet Public Health, 3(12), e566. https://doi.org/10.1016/s2468-2667%2818%2930231-7

Kontopantelis E, Buchan I, Webb RT, Ashcroft DM, Mamas MA, Doran T. Disparities in mortality among 25–44-year-olds in England: a longitudinal population-based study. Lancet Public Health 2018; 3: 567–75—In figure 5 of this Article, the labels on the... Read More about Correction to Lancet Public Health 2018; 3: 567–75.

From Taxonomy to Requirements: A Task Space Partitioning Approach (2018)
Presentation / Conference
Elshehaly, M., Alvarado, N., McVey, L., Randell, R., Mamas, M., & Ruddle, R. A. (2018, October). From Taxonomy to Requirements: A Task Space Partitioning Approach. Paper presented at 2018 IEEE Evaluation and Beyond - Methodological Approaches for Visualization (BELIV), Berlin, Germany

The following topics are dealt with: data visualisation; human factors; decision making; data analysis; data aggregation; cognition; inference mechanisms; authoring systems; user experience; social networking (online).

Procedural success and outcomes with increasing use of enabling strategies for chronic total occlusion intervention: an analysis of 28,050 cases from the British Cardiovascular Intervention Society database (2018)
Journal Article
Kinnaird, T., Cockburn, J., Sirker, A., Ludman, P., de Belder, M., Smith, E., …Hildick-Smith, D. (2018). Procedural success and outcomes with increasing use of enabling strategies for chronic total occlusion intervention: an analysis of 28,050 cases from the British Cardiovascular Intervention Society database. Circulation: Cardiovascular Interventions, https://doi.org/10.1161/CIRCINTERVENTIONS.118.006436

BACKGROUND Enabling strategies (ESs) are increasingly used during percutaneous coronary intervention for chronic total occlusive disease (CTO-PCI), enhancing procedural success. Using the British Cardiovascular Society dataset, we examined changes i... Read More about Procedural success and outcomes with increasing use of enabling strategies for chronic total occlusion intervention: an analysis of 28,050 cases from the British Cardiovascular Intervention Society database.

TCT-658 Complex High and Indicated Percutaneous Coronary Indication: Does Operator Volume Influence Patient Outcome? (2018)
Journal Article
Kinnaird, T., Gallagher, S., Spratt, J., Ludman, P., de Belder, M., de Belder, M., …Mamas, M. (2018). TCT-658 Complex High and Indicated Percutaneous Coronary Indication: Does Operator Volume Influence Patient Outcome?. Journal of the American College of Cardiology, 72(13), B263. https://doi.org/10.1016/j.jacc.2018.08.1867

Background Complex high-risk and indicated revascularisation using percutaneous coronary intervention (CHIP-PCI) is an emerging concept that is poorly studied. Using the British Intervention Society (BCIS) PCI database, we examined temporal changes... Read More about TCT-658 Complex High and Indicated Percutaneous Coronary Indication: Does Operator Volume Influence Patient Outcome?.

Association of Same-Day Discharge After Elective Percutaneous Coronary Intervention in the United States With Costs and Outcomes (2018)
Journal Article
Mamas. (2018). Association of Same-Day Discharge After Elective Percutaneous Coronary Intervention in the United States With Costs and Outcomes. JAMA Cardiology, https://doi.org/10.1001/jamacardio.2018.3029

Importance Same-day discharge (SDD) after elective percutaneous coronary intervention (PCI) is associated with lower costs and preferred by patients. However, to our knowledge, contemporary patterns of SDD after elective PCI with respect to the inci... Read More about Association of Same-Day Discharge After Elective Percutaneous Coronary Intervention in the United States With Costs and Outcomes.

TCT-148 An international analyses of 122,610 NSTEMI patients with 5 year outcomes: assessing the influence of age and comorbidities on invasively vs medically managed patients between 2004 and 2014. (2018)
Presentation / Conference
Protty, M., Al-zuhairi, K., Kinnaird, T., Mamas, M., Torp-Pedersen, C., Smith, D., & Freeman, P. (2018, September). TCT-148 An international analyses of 122,610 NSTEMI patients with 5 year outcomes: assessing the influence of age and comorbidities on invasively vs medically managed patients between 2004 and 2014. Poster presented at Thirtieth Annual Symposium Transcatheter Cardiovascular Therapeutics (TCT), San Diego, CA, USA

NSTEMI patients are at risk of death, reinfarction and ischaemia, a risk that increases as cardiovascular risk (GRACE) increases. However, data from UK national registries identifies at least 60,000 NSTEMI patients per year not receiving an invasive... Read More about TCT-148 An international analyses of 122,610 NSTEMI patients with 5 year outcomes: assessing the influence of age and comorbidities on invasively vs medically managed patients between 2004 and 2014..

Radial artery access and outcomes for left main stem PCI: an analysis of 19,482 cases from the British Cardiovascular Intervention Society national database (2018)
Presentation / Conference
Kinnaird, T., Anderson, R., Sirker, A., Ludman, P., de Belder, M., Oldroyd, K., …Mamas, M. (2018, September). Radial artery access and outcomes for left main stem PCI: an analysis of 19,482 cases from the British Cardiovascular Intervention Society national database. Presented at 13th Annual Symposium Transcatheter Cardiovascular Therapeutics (TCT)

Background Although the predictors and outcomes of radial versus femoral access are well defined for unselected PCI procedures and certain sub-groups, there are few data for patients undergoing left main stem percutaneous coronary intervention (LMS-... Read More about Radial artery access and outcomes for left main stem PCI: an analysis of 19,482 cases from the British Cardiovascular Intervention Society national database.

TCT-766 Coronary perforation complicating percutaneous coronary intervention in patients presenting with an acute coronary syndrome: an analysis of 1,013 perforation cases from the British Cardiovascular Intervention Society database (2018)
Journal Article
Kinnaird, T., Calvert, P., Anderson, R., Sirker, A., de Belder, M., Ludman, P., …Mamas, M. (2018). TCT-766 Coronary perforation complicating percutaneous coronary intervention in patients presenting with an acute coronary syndrome: an analysis of 1,013 perforation cases from the British Cardiovascular Intervention Society database. Journal of the American College of Cardiology, 72(13), Article B306. https://doi.org/10.1016/j.jacc.2018.08.1994

Background The evidence base for coronary perforation (CP) occurring during percutaneous coronary intervention in patients presenting with an acute coronary syndrome (ACS-PCI) is limited with the specific role of acute pharmacology in its clinical p... Read More about TCT-766 Coronary perforation complicating percutaneous coronary intervention in patients presenting with an acute coronary syndrome: an analysis of 1,013 perforation cases from the British Cardiovascular Intervention Society database.

Changes in Peri-procedural Bleeding Complications Following Percutaneous Coronary Intervention in The United Kingdom Between 2006-2013 (From the British Cardiovascular Interventional Society) (2018)
Journal Article
Mamas, M., Nolan, J., & Rashid, M. (2018). Changes in Peri-procedural Bleeding Complications Following Percutaneous Coronary Intervention in The United Kingdom Between 2006-2013 (From the British Cardiovascular Interventional Society). American Journal of Cardiology, 952-960. https://doi.org/10.1016/j.amjcard.2018.06.016

Major bleeding is a common complication following percutaneous coronary intervention (PCI), although little is known about how bleeding rates have changed over time and what has driven this. We analyzed all patients undergoing PCI in England and Wale... Read More about Changes in Peri-procedural Bleeding Complications Following Percutaneous Coronary Intervention in The United Kingdom Between 2006-2013 (From the British Cardiovascular Interventional Society).