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Papers by Nages Nagaratnam

Research paper thumbnail of Screaming in Dementia

Research paper thumbnail of Hypertension in the Elderly

Research paper thumbnail of Transient Ischaemic Attack (TIA)

Geriatric Diseases, 2018

TIA frequency increases with age reaching 10.2% in males and 7.4% in females and decreased in sub... more TIA frequency increases with age reaching 10.2% in males and 7.4% in females and decreased in subjects of both sexes aged 85 years or over. The symptoms of TIA vary widely depending on the area of the brain involved. Medical history of specific symptoms and thorough neurological and cardiovascular examinations provide the most important information to diagnose a TIA. TIA poses considerable difficulty in diagnosis, and diagnostic uncertainty is common. Patients presenting with TIA or minor stroke are at high risk of early stroke up to 10% in the first 48 h. Current international guidelines have adopted the ABCD2 score in risk stratification of patients with TIA. For a new-onset TIA patient, an ABCD2 can be a guide in the management.

Research paper thumbnail of Anxiety and Anxiety Disorders in Later Life

Geriatric Diseases, 2018

Late-life anxiety disorders have been underestimated for several reasons, for example, older pers... more Late-life anxiety disorders have been underestimated for several reasons, for example, older persons tend to emphasise their physical complaints and less likely to report psychiatric symptoms. Panic attacks that begin in late life necessitate a search for a depressive disorder, physical illness or drugs that contribute to their presence. Of the anxiety disorders, phobia and general anxiety disorder (GAD) are the two most common in older people. This review summarises the main group of anxiety disorders and their management.

Research paper thumbnail of Acute mixed transcortical aphasia following an infarction in the left putamen

Aphasiology, 1998

Mixed transcortical aphasia is an uncommon occurrence with acute stroke. A 62 year old female is ... more Mixed transcortical aphasia is an uncommon occurrence with acute stroke. A 62 year old female is described with mixed transcortical aphasia and right hemiparesis and occlusion of the left internal carotid artery. The CT scan of the brain showed an infarction in the left putamen indicating that there is more than one anatomic possibility underlying mixed transcortical aphasia. Infarction of

Research paper thumbnail of Dementia in the oldest old

Nature Reviews Neurology, 2013

People over the age of 90 years-the oldest old-are the fastest growing sector of the population. ... more People over the age of 90 years-the oldest old-are the fastest growing sector of the population. A substantial proportion of these individuals are affected by dementia, with major implications for the individual as well as society. Research on dementia in the oldest old is important for service planning, and the absence of dementia at this exceptional old age may serve as a model of successful ageing. This Review summarizes population-based epidemiological studies of dementia and its underlying neuropathology in nonagenarians and centenarians. The available data, although somewhat limited, show an age-specific and sex-specific profile of dementia status in very late life, resulting from a variety of neuropathologies that often co-occur. Extensive overlap in neuropathology between cognitively normal and cognitively impaired individuals is evident despite challenges to gathering data particular to this population. A complex picture is emerging of multiple pathogenetic mechanisms underlying dementia, and of the potential risk and protective factors for dementia that interact with genetics and lifestyle in normal and exceptional cognitive ageing.

Research paper thumbnail of Hemoglobinopathies in sri Lanka and Their Anthropological Implications

Hemoglobin, 1989

... Med. J., i:866, 1958. Blackwell, RQ, de Silva, PE, de Silva, WAS, Nagaratnam, N., Warnasuriya... more ... Med. J., i:866, 1958. Blackwell, RQ, de Silva, PE, de Silva, WAS, Nagaratnam, N., Warnasuriya, N. Abeyaratne, DD, Ogren, ND, and Weng, M. I., Trop. Geogr. Med., 26:214, 1974. ... Clin., 38:154, 1969. Astaldi, G., Tolentino, P., and Saccheti, C., Helv. Paediatr. Acta, 6:50, 1951. ...

Research paper thumbnail of Oral Issues and Related Disorders in the Elderly

Diseases in the Elderly, 2016

Research paper thumbnail of Renal and Lower Urinary Tract Disorders in the Elderly

Diseases in the Elderly, 2016

Research paper thumbnail of Cardiovascular Disease and Related Disorders in the Elderly

Diseases in the Elderly, 2016

Research paper thumbnail of Electrolyte Disturbances and Disorders of Mineral Metabolism in the Elderly

Diseases in the Elderly, 2016

Research paper thumbnail of Neurological Disorders and Related Problems in the Elderly

Diseases in the Elderly, 2016

Research paper thumbnail of Ear-Related Problems in the Elderly

Diseases in the Elderly, 2016

Research paper thumbnail of Blood Disorders in the Elderly

Diseases in the Elderly, 2016

Research paper thumbnail of Gastrointestinal System

Diseases in the Elderly, 2016

Research paper thumbnail of Musculoskeletal Systems

Diseases in the Elderly, 2016

Research paper thumbnail of Endocrine Disorders

Diseases in the Elderly, 2016

Research paper thumbnail of Post-hemiplegic dystonia following right anterior cerebral artery infarction

Australian and New Zealand journal of medicine, 1991

Research paper thumbnail of Global Aphasia without Hemiparesis

Neurorehabilitation and Neural Repair, 1990

Research paper thumbnail of Critical Illness Neuropathy

Neurorehabilitation and Neural Repair, 2001

Critical illness neuropathy frequently accompanies the septic syndrome in intensive care units. A... more Critical illness neuropathy frequently accompanies the septic syndrome in intensive care units. Another entity that may occur independently or concurrently in critically ill patients is a myopathy, giving rise to difficulties in distinguishing between them. The two patients described had sensorimotor axonal peripheral neuropathy. Axonopathy as a rule has a poor prognosis for recovery, which is slow and often incomplete. There are few reports of the functional outcome after rehabilitation therapy. The two patients described had 5-6 weeks of active rehabilitation therapy with improvement from moderate/severe disability at the onset to slight debility at the end of therapy.

Research paper thumbnail of Screaming in Dementia

Research paper thumbnail of Hypertension in the Elderly

Research paper thumbnail of Transient Ischaemic Attack (TIA)

Geriatric Diseases, 2018

TIA frequency increases with age reaching 10.2% in males and 7.4% in females and decreased in sub... more TIA frequency increases with age reaching 10.2% in males and 7.4% in females and decreased in subjects of both sexes aged 85 years or over. The symptoms of TIA vary widely depending on the area of the brain involved. Medical history of specific symptoms and thorough neurological and cardiovascular examinations provide the most important information to diagnose a TIA. TIA poses considerable difficulty in diagnosis, and diagnostic uncertainty is common. Patients presenting with TIA or minor stroke are at high risk of early stroke up to 10% in the first 48 h. Current international guidelines have adopted the ABCD2 score in risk stratification of patients with TIA. For a new-onset TIA patient, an ABCD2 can be a guide in the management.

Research paper thumbnail of Anxiety and Anxiety Disorders in Later Life

Geriatric Diseases, 2018

Late-life anxiety disorders have been underestimated for several reasons, for example, older pers... more Late-life anxiety disorders have been underestimated for several reasons, for example, older persons tend to emphasise their physical complaints and less likely to report psychiatric symptoms. Panic attacks that begin in late life necessitate a search for a depressive disorder, physical illness or drugs that contribute to their presence. Of the anxiety disorders, phobia and general anxiety disorder (GAD) are the two most common in older people. This review summarises the main group of anxiety disorders and their management.

Research paper thumbnail of Acute mixed transcortical aphasia following an infarction in the left putamen

Aphasiology, 1998

Mixed transcortical aphasia is an uncommon occurrence with acute stroke. A 62 year old female is ... more Mixed transcortical aphasia is an uncommon occurrence with acute stroke. A 62 year old female is described with mixed transcortical aphasia and right hemiparesis and occlusion of the left internal carotid artery. The CT scan of the brain showed an infarction in the left putamen indicating that there is more than one anatomic possibility underlying mixed transcortical aphasia. Infarction of

Research paper thumbnail of Dementia in the oldest old

Nature Reviews Neurology, 2013

People over the age of 90 years-the oldest old-are the fastest growing sector of the population. ... more People over the age of 90 years-the oldest old-are the fastest growing sector of the population. A substantial proportion of these individuals are affected by dementia, with major implications for the individual as well as society. Research on dementia in the oldest old is important for service planning, and the absence of dementia at this exceptional old age may serve as a model of successful ageing. This Review summarizes population-based epidemiological studies of dementia and its underlying neuropathology in nonagenarians and centenarians. The available data, although somewhat limited, show an age-specific and sex-specific profile of dementia status in very late life, resulting from a variety of neuropathologies that often co-occur. Extensive overlap in neuropathology between cognitively normal and cognitively impaired individuals is evident despite challenges to gathering data particular to this population. A complex picture is emerging of multiple pathogenetic mechanisms underlying dementia, and of the potential risk and protective factors for dementia that interact with genetics and lifestyle in normal and exceptional cognitive ageing.

Research paper thumbnail of Hemoglobinopathies in sri Lanka and Their Anthropological Implications

Hemoglobin, 1989

... Med. J., i:866, 1958. Blackwell, RQ, de Silva, PE, de Silva, WAS, Nagaratnam, N., Warnasuriya... more ... Med. J., i:866, 1958. Blackwell, RQ, de Silva, PE, de Silva, WAS, Nagaratnam, N., Warnasuriya, N. Abeyaratne, DD, Ogren, ND, and Weng, M. I., Trop. Geogr. Med., 26:214, 1974. ... Clin., 38:154, 1969. Astaldi, G., Tolentino, P., and Saccheti, C., Helv. Paediatr. Acta, 6:50, 1951. ...

Research paper thumbnail of Oral Issues and Related Disorders in the Elderly

Diseases in the Elderly, 2016

Research paper thumbnail of Renal and Lower Urinary Tract Disorders in the Elderly

Diseases in the Elderly, 2016

Research paper thumbnail of Cardiovascular Disease and Related Disorders in the Elderly

Diseases in the Elderly, 2016

Research paper thumbnail of Electrolyte Disturbances and Disorders of Mineral Metabolism in the Elderly

Diseases in the Elderly, 2016

Research paper thumbnail of Neurological Disorders and Related Problems in the Elderly

Diseases in the Elderly, 2016

Research paper thumbnail of Ear-Related Problems in the Elderly

Diseases in the Elderly, 2016

Research paper thumbnail of Blood Disorders in the Elderly

Diseases in the Elderly, 2016

Research paper thumbnail of Gastrointestinal System

Diseases in the Elderly, 2016

Research paper thumbnail of Musculoskeletal Systems

Diseases in the Elderly, 2016

Research paper thumbnail of Endocrine Disorders

Diseases in the Elderly, 2016

Research paper thumbnail of Post-hemiplegic dystonia following right anterior cerebral artery infarction

Australian and New Zealand journal of medicine, 1991

Research paper thumbnail of Global Aphasia without Hemiparesis

Neurorehabilitation and Neural Repair, 1990

Research paper thumbnail of Critical Illness Neuropathy

Neurorehabilitation and Neural Repair, 2001

Critical illness neuropathy frequently accompanies the septic syndrome in intensive care units. A... more Critical illness neuropathy frequently accompanies the septic syndrome in intensive care units. Another entity that may occur independently or concurrently in critically ill patients is a myopathy, giving rise to difficulties in distinguishing between them. The two patients described had sensorimotor axonal peripheral neuropathy. Axonopathy as a rule has a poor prognosis for recovery, which is slow and often incomplete. There are few reports of the functional outcome after rehabilitation therapy. The two patients described had 5-6 weeks of active rehabilitation therapy with improvement from moderate/severe disability at the onset to slight debility at the end of therapy.