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Timing and causes of unplanned readmissions after percutaneous coronary intervention: Insights from the Nationwide Readmission Database (2019)
Journal Article
Mamas, M., & Rashid, M. (2019). Timing and causes of unplanned readmissions after percutaneous coronary intervention: Insights from the Nationwide Readmission Database. JACC. Cardiovascular interventions, 734-748. https://doi.org/10.1016/j.jcin.2019.02.007

The rates and causes of readmission at different time periods after PCI remain incompletely elucidated. Among the 2,412,000 patients, 2.5% were readmitted between 0-7 days, 7.6% between 8 and 30 days, 8.9% between 31 and 90 days, and 8.0% between 91... Read More about Timing and causes of unplanned readmissions after percutaneous coronary intervention: Insights from the Nationwide Readmission Database.

Non-specific Chest Pain and 30-day Unplanned Readmissions in the United States: (From the Nationwide Readmission Database) (2019)
Journal Article
Mamas. (2019). Non-specific Chest Pain and 30-day Unplanned Readmissions in the United States: (From the Nationwide Readmission Database). American Journal of Cardiology, 1343-1350. https://doi.org/10.1016/j.amjcard.2019.01.012

Chest pain is a common reason for admission to hospital and little is known regarding 30 day unplanned readmissions after an admission with a primary discharge diagnosis of nonspecific chest pain. We analyzed patients with a primary diagnosis of nons... Read More about Non-specific Chest Pain and 30-day Unplanned Readmissions in the United States: (From the Nationwide Readmission Database).

Does rhythm matter in acute heart failure? An insight from the British Society for Heart Failure National Audit. (2019)
Journal Article
Mamas. (2019). Does rhythm matter in acute heart failure? An insight from the British Society for Heart Failure National Audit. Zeitschrift für Kardiologie, https://doi.org/10.1007/s00392-019-01463-5

BACKGROUND: Atrial fibrillation (AF) is the most common sustained arrhythmia in patients with acute heart failure (AHF). The presence of AF is associated with adverse prognosis in patients with chronic heart failure (CHF) but little is known about it... Read More about Does rhythm matter in acute heart failure? An insight from the British Society for Heart Failure National Audit..

Radial versus Femoral Approach for Saphenous Vein Grafts Angiography and Interventions (2019)
Journal Article
Mamas. (2019). Radial versus Femoral Approach for Saphenous Vein Grafts Angiography and Interventions. American Heart Journal, 1-8. https://doi.org/10.1016/j.ahj.2018.11.014

Aims
Coronary angiography and intervention to saphenous venous grafts (SVGs) remains challenging. This study aimed to investigate the feasibility and safety of the radial approach compared to femoral access in a large cohort of patients undergoing S... Read More about Radial versus Femoral Approach for Saphenous Vein Grafts Angiography and Interventions.

True 99th centile of high sensitivity cardiac troponin for hospital patients: prospective, observational cohort study? (2019)
Journal Article
Mamas. (2019). True 99th centile of high sensitivity cardiac troponin for hospital patients: prospective, observational cohort study?. BMJ, https://doi.org/10.1136/bmj.l729

OBJECTIVE
To determine the distribution, and specifically the true 99th centile, of high sensitivity cardiac troponin I
(hs-cTnI) for a whole hospital population by applying the hs-cTnI assay currently used routinely at a large
teaching hospital.... Read More about True 99th centile of high sensitivity cardiac troponin for hospital patients: prospective, observational cohort study?.

Understanding Social Media: Opportunities for Cardiovascular Medicine (2019)
Journal Article
Mamas. (2019). Understanding Social Media: Opportunities for Cardiovascular Medicine. Journal of the American College of Cardiology, 1089-1093. https://doi.org/10.1016/j.jacc.2018.12.044

Cardiology professionals have used social media platforms such as Twitter to gain exposure to new research, network with experts, share opinions, and engage in scientific debates. The power of social media to communicate openly, with wide-reaching ac... Read More about Understanding Social Media: Opportunities for Cardiovascular Medicine.

Correction: Cardiac implantable electronic device (CIED) infections are expensive and associated with prolonged hospitalisation: UK Retrospective Observational Study (2019)
Journal Article
Ahmed, F. Z., Fullwood, C., Zaman, M., Qamruddin, A., Cunnington, C., Mamas, M. A., …Zaidi, A. (2019). Correction: Cardiac implantable electronic device (CIED) infections are expensive and associated with prolonged hospitalisation: UK Retrospective Observational Study. PloS one, 14(3), Article e0213682. https://doi.org/10.1371/journal.pone.0213682

[This corrects the article DOI: 10.1371/journal.pone.0206611.].

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.

Early readmissions after isolated coronary artery bypass grafting. (2019)
Journal Article
Mamas. (2019). Early readmissions after isolated coronary artery bypass grafting. International Journal of Clinical Practice, e13319 - ?. https://doi.org/10.1111/ijcp.13319

Since its introduction, coronary artery bypass grafting (CABG) has been the revascularisation intervention of choice in patients with complex coronary artery disease [1]. CABG is the most common cardiac surgical procedure [3]. Those reshospitalised w... Read More about Early readmissions after isolated coronary artery bypass grafting..

Relative survival and excess mortality following primary percutaneous coronary intervention for ST-elevation myocardial infarction (2019)
Journal Article
Mamas. (2019). Relative survival and excess mortality following primary percutaneous coronary intervention for ST-elevation myocardial infarction. European Heart Journal: Acute Cardiovascular Care, 68-77. https://doi.org/10.1177/2048872617710790

Background:
High survival rates are commonly reported following primary percutaneous coronary intervention for ST-elevation myocardial infarction, with most contemporary studies reporting overall survival.

Aims:
The aim of this study was to d... Read More about Relative survival and excess mortality following primary percutaneous coronary intervention for ST-elevation myocardial infarction.

Discharge Against Medical Advice after Hospitalization for Acute Myocardial Infarction (2019)
Journal Article
Mamas. (2019). Discharge Against Medical Advice after Hospitalization for Acute Myocardial Infarction. Heart, 315-321. https://doi.org/10.1136/heartjnl-2018-313671

Background
Discharge against medical advice (AMA) occurs infrequently but is associated with poor outcomes. There are limited descriptions of discharges AMA in national cohorts of patients with acute myocardial infarction (AMI). This study aims to e... Read More about Discharge Against Medical Advice after Hospitalization for Acute Myocardial Infarction.

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.

Access site and outcomes for unprotected left main stem PCI: an analysis of the British Cardiovascular Intervention Society database (2018)
Journal Article
Mamas. (2018). Access site and outcomes for unprotected left main stem PCI: an analysis of the British Cardiovascular Intervention Society database. JACC. Cardiovascular interventions, 2480-2491. https://doi.org/10.1016/j.jcin.2018.09.035

Objectives
Using the British Cardiovascular Intervention Society percutaneous coronary intervention (PCI) database, temporal trends, predictors, and outcomes of radial access (RA) versus femoral access (FA) for unprotected left main stem percutaneou... Read More about Access site and outcomes for unprotected left main stem PCI: an analysis of the British Cardiovascular Intervention Society database.

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.

Marital status and risk of cardiovascular diseases: A systematic review and meta-analysis (2018)
Journal Article
Wong, C., Kwok, C., Narain, A., Gulati, M., Mihalidou, A., Wu, P., …Mamas, M. (2018). Marital status and risk of cardiovascular diseases: A systematic review and meta-analysis. Heart, 1937-1948. https://doi.org/10.1136/heartjnl-2018-313005

Background The influence of marital status on the incidence of cardiovascular disease (CVD) and prognosis after CVD is inconclusive. We systematically reviewed the literature to determine how marital status influences CVD and prognosis after CVD.... Read More about Marital status and risk of cardiovascular diseases: A systematic review and meta-analysis.

Association of comorbid burden with clinical outcomes after transcatheter aortic valve implantation (2018)
Journal Article
Mamas. (2018). Association of comorbid burden with clinical outcomes after transcatheter aortic valve implantation. Heart, 2058-2066. https://doi.org/10.1136/heartjnl-2018-313356

OBJECTIVES
To investigate the association of the CharlsonComorbidity Index (CCI) with clinical outcomes after transcatheter aortic valve implantation (TAVI).

BACKGROUND: Patients undergoing TAVI have high comorbid burden; however, there is limite... Read More about Association of comorbid burden with clinical outcomes after transcatheter aortic valve implantation.