Intro To Mass Lesions

Front 1

Characteristics of normal pressure hydrocephalus

Back 1

1) progressive dementia
2) uriniary incontinence
3) disordered gait
4) not associated with increased ICP

Front 2

Monro-Kellie hypothesis

Back 2

When pressure rises in one of the three intracranial compartments (blood, parenchyma, CSF), it occurs at the expense of the other two in order to maintain proper ICP.

Front 3

Consequences of rising ICP

Back 3

1) when pressure rises above venous pressure, blood cannot flow out and makes ICP worse
2) when pressure exceeds arterial pressure, lack of blood results in ischemia

Front 4

Clinical manifestations of rising ICP

Back 4

1) Headache
2) Nausea and vomiting (sometimes without nausea)
3) Drowsiness progressing to coma
4) Ocular palsies
5) Papilledema and loss of vision
6) "Cushing response"

Front 5

"Cushing response"

Back 5

Systemic signs of rising ICP
1) Bradycardia
2) Elevated systolic pressure
3) Irregular respirations

Front 6

"Respirator Brain"

Back 6

aka. brain death
Autolysis of dead unperfused brain

Front 7

"Persistent vegetative state"

Back 7

Enough brainstem function survives to allow spontaneous ventilation, autonomic control and sleep-wake cycles but without awareness.