Skip to main content

Research Repository

Advanced Search

Christine Roffe's Outputs (88)

Validation and Recalibration of Two Multivariable Prognostic Models for Survival and Independence in Acute Stroke (2016)
Journal Article
Sim, J., Teece, L., Dennis, M. S., & Roffe, C. (2016). Validation and Recalibration of Two Multivariable Prognostic Models for Survival and Independence in Acute Stroke. PloS one, 11(5), Article ARTN e0153527. https://doi.org/10.1371/journal.pone.0153527

Introduction
Various prognostic models have been developed for acute stroke, including one based on age and five binary variables (‘six simple variables’ model; SSVMod) and one based on age plus scores on the National Institutes of Health Stroke Sca... Read More about Validation and Recalibration of Two Multivariable Prognostic Models for Survival and Independence in Acute Stroke.

Determinants and outcomes of stroke following percutaneous coronary intervention by indication (2016)
Journal Article
Roffe, & Mamas. (2016). Determinants and outcomes of stroke following percutaneous coronary intervention by indication. Stroke, 1500-1507. https://doi.org/10.1161/strokeaha.116.012700

Background and Purpose—Stroke after percutaneous coronary intervention (PCI) is a serious complication, but its determinants and outcomes after PCI in different clinical settings are poorly documented.

Methods—The British Cardiovascular Interventi... Read More about Determinants and outcomes of stroke following percutaneous coronary intervention by indication.

Low-Dose versus Standard-Dose Intravenous Alteplase in Acute Ischemic Stroke (2016)
Journal Article
Roffe. (2016). Low-Dose versus Standard-Dose Intravenous Alteplase in Acute Ischemic Stroke. New England Journal of Medicine, 2313-2323. https://doi.org/10.1056/NEJMoa1515510

BACKGROUND
Thrombolytic therapy for acute ischemic stroke with a lower-than-standard dose of intravenous alteplase may improve recovery along with a reduced risk of intracerebral hemorrhage.

METHODS
Using a 2-by-2 quasi-factorial open-label desi... Read More about Low-Dose versus Standard-Dose Intravenous Alteplase in Acute Ischemic Stroke.

Intravenous tranexamic acid for hyperacute primary intracerebral hemorrhage: Protocol for a randomized, placebo-controlled trial (2016)
Journal Article
Roffe. (2016). Intravenous tranexamic acid for hyperacute primary intracerebral hemorrhage: Protocol for a randomized, placebo-controlled trial. International Journal of Stroke, 683-694. https://doi.org/10.1177/1747493016641960

Rationale
Outcome after intracerebral hemorrhage remains poor. Tranexamic acid is easy to administer, readily available, inexpensive, and effective in other hemorrhagic conditions.

Aim
This randomized trial aims to test the hypothesis that intra... Read More about Intravenous tranexamic acid for hyperacute primary intracerebral hemorrhage: Protocol for a randomized, placebo-controlled trial.

Post-stroke dysphagia: A review and design considerations for future trials (2016)
Journal Article
Roffe. (2016). Post-stroke dysphagia: A review and design considerations for future trials. International Journal of Stroke, 399 - 411. https://doi.org/10.1177/1747493016639057

Post-stroke dysphagia (a difficulty in swallowing after a stroke) is a common and expensive complication of acute stroke and is associated with increased mortality, morbidity, and institutionalization due in part to aspiration, pneumonia, and malnutr... Read More about Post-stroke dysphagia: A review and design considerations for future trials.

Early Diagnosis of Pneumonia in Severe Stroke: Clinical Features and the Diagnostic Role of C-Reactive Protein (2016)
Journal Article
Warusevitane, A., Karunatilake, D., Sim, J., Smith, C., & Roffe, C. (2016). Early Diagnosis of Pneumonia in Severe Stroke: Clinical Features and the Diagnostic Role of C-Reactive Protein. PloS one, 0150269-?. https://doi.org/10.1371/journal.pone.0150269

Background
Accurate diagnosis of pneumonia complicating severe stroke is challenging due to difficulties in physical examination, altered immune responses and delayed manifestations of radiological changes. The aims of this study were to describe ea... Read More about Early Diagnosis of Pneumonia in Severe Stroke: Clinical Features and the Diagnostic Role of C-Reactive Protein.

In vitro experiments of cerebral blood flow during aspiration thrombectomy: potential effects on cerebral perfusion pressure and collateral flow (2015)
Journal Article
Roffe, Yang, & Naire. (2015). In vitro experiments of cerebral blood flow during aspiration thrombectomy: potential effects on cerebral perfusion pressure and collateral flow. Journal of NeuroInterventional Surgery, 969-972. https://doi.org/10.1136/neurintsurg-2015-011909

BACKGROUND: Mechanical thrombectomy with stent retriever devices is associated with significantly better outcomes than thrombolysis alone in the treatment of acute ischemic stroke. Thrombus aspiration achieves high patency rates, but clinical outcome... Read More about In vitro experiments of cerebral blood flow during aspiration thrombectomy: potential effects on cerebral perfusion pressure and collateral flow.

Differences in Factors Predicting Outcome and Mortality after Mechanical Thrombectomy for Acute Large Vessel Stroke Between Patients over and Under 70 Years of Age: A Five Year Retrospective Study (2015)
Journal Article
Roffe. (2015). Differences in Factors Predicting Outcome and Mortality after Mechanical Thrombectomy for Acute Large Vessel Stroke Between Patients over and Under 70 Years of Age: A Five Year Retrospective Study. Symbiosis, 1-8. https://doi.org/10.15226/2374-6858/2/1/00114

Aim: To assess the differences in risk factors between different age groups after mechanical thrombectomy (MT) for ischaemic stroke, including recanalization time and functional and radiological scoring.

Methods: Patients treated between December... Read More about Differences in Factors Predicting Outcome and Mortality after Mechanical Thrombectomy for Acute Large Vessel Stroke Between Patients over and Under 70 Years of Age: A Five Year Retrospective Study.

Abstract W MP9: Preliminary Results from the Survival and Outcome After Stroke (SOS) Trial: Natural History of Acute Ischemic Stroke from Large Vessel Occlusion (2015)
Journal Article
Grunwald, I. Q., Sneade, M., Clarke, A., Yarnold, J., Warburton, E., Nagel, S., …Trial Investigators, S. (2015). Abstract W MP9: Preliminary Results from the Survival and Outcome After Stroke (SOS) Trial: Natural History of Acute Ischemic Stroke from Large Vessel Occlusion. Stroke, 46(suppl_1), https://doi.org/10.1161/str.46.suppl_1.wmp9

Statistical analysis plan for the Stroke Oxygen Study (SO2S): a multi-center randomized controlled trial to assess whether routine oxygen supplementation in the first 72 hours after a stroke improves long-term outcome. (2014)
Journal Article
Ives, N., Sim, J., Gray, R., Roffe, C., Nevatte, T., & Howman, A. (2014). Statistical analysis plan for the Stroke Oxygen Study (SO2S): a multi-center randomized controlled trial to assess whether routine oxygen supplementation in the first 72 hours after a stroke improves long-term outcome. Trials, 15, Article ARTN 229. https://doi.org/10.1186/1745-6215-15-229

BACKGROUND: The Stroke Oxygen Study (SO2S) is a multi-center randomized controlled trial of oxygen supplementation in patients with acute stroke. The main hypothesis for the trial is that fixed-dose oxygen treatment during the first 3 days after an a... Read More about Statistical analysis plan for the Stroke Oxygen Study (SO2S): a multi-center randomized controlled trial to assess whether routine oxygen supplementation in the first 72 hours after a stroke improves long-term outcome..

The Stroke Oxygen Study (SO2S) - a multi-center, study to assess whether routine oxygen treatment in the first 72 hours after a stroke improves long-term outcome: study protocol for a randomized controlled trial. (2014)
Journal Article
Roffe, C., Nevatte, T., Crome, P., Gray, R., Sim, J., Pountain, S., …Handy, P. (2014). The Stroke Oxygen Study (SO2S) - a multi-center, study to assess whether routine oxygen treatment in the first 72 hours after a stroke improves long-term outcome: study protocol for a randomized controlled trial. Trials, 15, Article 99. https://doi.org/10.1186/1745-6215-15-99

BACKGROUND: Mild hypoxia is common in stroke patients and may have significant adverse effects on the ischemic brain after stroke. The use of oxygen treatment is rapidly increasing in European stroke units but is not without side effects. It impedes... Read More about The Stroke Oxygen Study (SO2S) - a multi-center, study to assess whether routine oxygen treatment in the first 72 hours after a stroke improves long-term outcome: study protocol for a randomized controlled trial..

Extending the role of peritoneal dialysis: can we win hearts and minds? (2014)
Journal Article
Davies, S., Lally, F., Satchithananda, D., Kadam, U., & Roffe, C. (2014). Extending the role of peritoneal dialysis: can we win hearts and minds?. Nephrology Dialysis Transplantation, 29(9), 1648-1654. https://doi.org/10.1093/ndt/gfu001

Background
The ability of peritoneal dialysis (PD) to achieve low-molecular weight solute clearance and ultrafiltration at low haemodynamic cost makes it an attractive therapy in situations where more aggressive therapy may be undesirable due to sud... Read More about Extending the role of peritoneal dialysis: can we win hearts and minds?.