Skip to main content

Normal Pressure Hydrocephalus

Image
By

Normal Pressure Hydrocephalus

Overview

Normal pressure hydrocephalus is a condition that is not due to a block within the ventricular system. Still, there is an obstruction in the subarachnoid space, preventing cerebrospinal fluid (CSF) from flowing over the ventricles. This condition is more common in the elderly.

Aetiology

A history of subarachnoid hemorrhage (SAH), head injury, or meningitis may be associated with the development of normal pressure hydrocephalus.

Clinical Features

The clinical features of normal pressure hydrocephalus include progressive memory impairment and dementia, slowness, marked unsteadiness of gait, and urinary incontinence.

Investigations

The removal of 50 ml of CSF can lead to a temporary improvement in cognition. CT or MRI can show dilatation of the ventricular system and relatively normal sulci. Periventricular lucencies can also be found on MRI.

Management

The treatment for normal pressure hydrocephalus involves the insertion of a shunt to improve the circulation of CSF. However, often the, dementia may not improve.

Labels:

Comments

Post a Comment

Your Thoughts?

Popular posts from this blog

ICD-11 Criteria for Single Episode Depressive Disorder (Depressive Episode) (6A70)

By
ICD-11 Criteria for Single Episode Depressive Disorder (Depressive Episode) (6A70) Single episode depressive disorder is characterised by the presence or history of one depressive episode when there is no history of prior depressive episodes. A depressive episode is characterised by a period of depressed mood or diminished interest in activities occurring most of the day, nearly every day during a period lasting at least two weeks accompanied by other symptoms such as difficulty concentrating, feelings of worthlessness or excessive or inappropriate guilt, hopelessness, recurrent thoughts of death or suicide, changes in appetite or sleep, psychomotor agitation or retardation, and reduced energy or fatigue. There have never been any prior manic, hypomanic, or mixed episodes, which would indicate the presence of a bipolar disorder. Exclusions:              Recurrent depressive disorder (6A71) Adjustment disorder (6B43) Bipolar...
Post a Comment
Read more

ICD-11 Criteria for Depression (Recurrent Depressive Disorder) 6A71

By
ICD-11 Criteria for Depression (Recurrent Depressive Disorder) 6A71 Recurrent depressive disorder is characterised by a history or at least two depressive episodes separated by at least several months without significant mood disturbance. A depressive episode is characterised by a period of depressed mood or diminished interest in activities occurring most of the day, nearly every day during a period lasting at least two weeks accompanied by other symptoms such as difficulty concentrating, feelings of worthlessness or excessive or inappropriate guilt, hopelessness, recurrent thoughts of death or suicide, changes in appetite or sleep, psychomotor agitation or retardation, and reduced energy or fatigue. There have never been any prior manic, hypomanic, or mixed episodes, which would indicate the presence of a Bipolar disorder. Inclusions:                Seasonal depressive disorder Exclusions:    ...
Post a Comment
Read more

ICD-11 Criteria for Bipolar Type-1 Disorder

By
ICD-11 Criteria for Bipolar Type-1 Disorder    6A60     Bipolar type I disorder is an episodic mood disorder defined by the occurrence of one or more manic or mixed episodes. A manic episode is an extreme mood state lasting at least one week unless shortened by a treatment intervention characterised by euphoria, irritability, or expansiveness, and by increased activity or a subjective experience of increased energy, accompanied by other characteristic symptoms such as rapid or pressured speech, flight of ideas, increased self-esteem or grandiosity, decreased need for sleep, distractibility, impulsive or reckless behaviour, and rapid changes among different mood states (i.e., mood lability). A mixed episode is characterised by the presence of several prominent manic and several prominent depressive symptoms consistent with those observed in manic episodes and depressive episodes, which either occur simultaneously or alternate very rapidly (from day to day or with...
Post a Comment
Read more