1. Association of Nurse-to-Patient Ratio with mortality and preventable complications following aortic valve replacement.

    Journal Of Cardiac Surgery 29(2):141 (2014) PMID 24417274

    To examine hospital resources associated with patient outcomes for aortic valve replacement (AVR), including inpatient adverse events and mortality. We used the Nationwide Inpatient Sample to identify AVR procedures from 1998 to 2010 and the American Hospital Association Annual Survey to augment...
  2. Clinical Profile of Compulsive Sexual Behaviour and Paraphilia in Parkinson's disease.

    Journal of Parkinson's Disease 4(4):665 (2014) PMID 25213998

    This case control study compares the clinical and demographic profile of Parkinson's disease (PD) participants with compulsive sexual behaviour (CSB) to those with other impulse control disorders (ICDs) and those with no behavioural disorder. We found a higher dopaminergic load (p < 0.05) and hi...
  3. Dopaminergic influences on executive function and impulsive behaviour in impulse control disorders in Parkinson's disease.

    Journal Of Neuropsychology 7(2):306 (2013) PMID 23901888

    The development of impulse control disorders (ICDs) in Parkinson's disease (PD) may arise from an interaction among cognitive impairment, impulsive responding and dopaminergic state. Dopaminergic state may be influenced by pharmacologic or genotypic (catechol-O-methyltransferase; COMT) factors. ...
  4. The effect of gym training on multiple outcomes in Parkinson's disease: a pilot randomised waiting-list controlled trial.

    NeuroRehabilitation 32(1):125 (2013) PMID 23422465

    There is accumulating evidence for the benefits of exercise in Parkinson's disease (PD), but less is known about group exercise interventions. We evaluated the effect of gym-training programme on people with PD. Thirty-two adults with mild to moderate PD, not currently exercising formally, were ...
  5. Cognitive impairment in Parkinson disease: impact on quality of life, disability, and caregiver burden.

    Journal of Geriatric Psychiatry and Neurology 25(4):208 (2012) PMID 23172765

    To compare quality of life, level of disability, and caregiver burden in 3 groups of people with Parkinson disease (PD): those with mild cognitive impairment (PD-MCI), those with dementia (PDD), and those with no cognitive impairment (PD-NC). Although the cognitive profile of those with PD-MCI a...
  6. Relationship between patient safety and hospital surgical volume.

    Health Services Research 47(2):756 (2012) PMID 22091561 PMCID PMC3419887

    To examine the relationship between hospital volume and in-hospital adverse events. Patient safety indicator (PSI) was used to identify hospital-acquired adverse events in the Nationwide Inpatient Sample database in abdominal aortic aneurysm, coronary artery bypass graft, and Roux-en-Y gastric b...
  7. Apathy and impulse control disorders in Parkinson's disease: a direct comparison.

    Parkinsonism & Related Disorders 18(2):198 (2012) PMID 22035735

    Apathy and impulse control disorders (ICDs) in Parkinson's disease (PD) are clinically important complications and may exist on a common behavioral spectrum of disorders of reward and motivation. To directly compare PD participants with apathy those with ICDs on range of demographic, neurologic ...
  8. Apathy and impulse control disorders in Parkinson’s disease: A direct comparison

    Parkinsonism & Related Disorders 18(2):198 (2012)

    Background Apathy and impulse control disorders (ICDs) in Parkinson’s disease (PD) are clinically important complications and may exist on a common behavioral spectrum of disorders of reward and motivation.
  9. Carer burden in apathy and impulse control disorders in Parkinson's disease.

    International Journal of Geriatric Psychiatry 27(2):160 (2012) PMID 21462269

    The neuropsychiatric complications of Parkinson's disease (PD), which include behaviour disturbances such as apathy and the impulse control disorders (ICDs), may have a significant effect on patients with PD and their carers. The contribution of these behaviour disorders to carer burden is less ...
  10. Apathy and impulse control disorders in Parkinson’s disease: A direct comparison

    Parkinsonism & Related Disorders 18(2):198 (2012)

    Background Apathy and impulse control disorders (ICDs) in Parkinson’s disease (PD) are clinically important complications and may exist on a common behavioral spectrum of disorders of reward and motivation.
  11. An exploration of apathy and impulsivity in Parkinson disease.

    Current Gerontology and Geriatrics Research 2012:390701 (2012) PMID 22829814 PMCID PMC3399379

    Background. Apathy and impulsivity in Parkinson disease (PD) are associated with clinically significant behavioral disorders. Aim. To explore the phenomenology, distribution, and clinical correlates of these two behaviors. Methods. In PD participants (n = 99) without dementia we explored the dis...
  12. Neuropsychiatric symptoms in Parkinson's disease with mild cognitive impairment and dementia.

    Parkinson's Disease 2012:308097 (2012) PMID 22970412 PMCID PMC3437302

    Neuropsychiatric symptoms commonly complicate Parkinson's disease (PD), however the presence of such symptoms in mild cognitive impairment (PD-MCI) specifically has not yet been well described. The objective of this study was to examine and compare the prevalence and profile of neuropsychiatric ...
  13. An exploration of apathy and impulsivity in Parkinson disease.

    Current Gerontology and Geriatrics Research 2012:390701 (2012) PMID 22829814 PMCID PMC3399379

    Background. Apathy and impulsivity in Parkinson disease (PD) are associated with clinically significant behavioral disorders. Aim. To explore the phenomenology, distribution, and clinical correlates of these two behaviors. Methods. In PD participants (n = 99) without dementia we explored the dis...
  14. Neuropsychiatric symptoms in Parkinson's disease with mild cognitive impairment and dementia.

    Parkinson's Disease 2012:308097 (2012) PMID 22970412 PMCID PMC3437302

    Neuropsychiatric symptoms commonly complicate Parkinson's disease (PD), however the presence of such symptoms in mild cognitive impairment (PD-MCI) specifically has not yet been well described. The objective of this study was to examine and compare the prevalence and profile of neuropsychiatric ...
  15. The influence of economic incentives and regulatory factors on the adoption of treatment technologies: a case study of technologies used to treat heart attacks.

    Health Economics 18(10):1114 (2009) PMID 18972326 PMCID PMC2740812

    The Technological Change in Health Care Research Network collected unique patient-level data on three procedures for treatment of heart attack patients (catheterization, coronary artery bypass grafts and percutaneous transluminal coronary angioplasty) for 17 countries over a 15-year period to ex...
  16. Implementing effective hypertension quality improvement strategies: barriers and potential solutions.

    Journal of Clinical Hypertension 10(4):311 (2008) PMID 18401229

    Many quality improvement strategies have focused on improving blood pressure control, and these strategies can target the patient, the provider, and/or the system. Strategies that seem to have the biggest effect on blood pressure outcomes are team change, patient education, facilitated relay of ...
  17. Implementing effective hypertension quality improvement strategies: barriers and potential solutions.

    Journal of Clinical Hypertension 10(4):311 (2008) PMID 18401229

    Many quality improvement strategies have focused on improving blood pressure control, and these strategies can target the patient, the provider, and/or the system. Strategies that seem to have the biggest effect on blood pressure outcomes are team change, patient education, facilitated relay of ...
  18. Patterns in early embryonic motility: effects of size and environmental temperature on vertical velocities of sinking and swimming echinoid blastulae.

    Biological Bulletin 207(2):93 (2004) PMID 15501851

    Early embryonic swimming is widespread among marine invertebrates, but quantitative information about swimming behaviors is scarce. Swimming may affect encounters with predators, positioning in the water column, and nutrient absorption. Measured rates and patterns of swimming and sinking for bla...
  19. Quality of life before and after radiofrequency catheter ablation in patients with drug refractory atrioventricular nodal reentrant tachycardia

    The American Journal of Cardiology 84(4):471 (1999)