Nonaneurysmal Subarachnoid Hemorrhage: A Review of Clinical Course and Outcome Between Two Types of Hemorrhage Pattern

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At the conclusion of this activity the learner will be able to:

  1. List two initial symptoms that are different for nonaneurysmal subarachnoid hemorrhage
  2. Discuss the difference in outcomes for nonaneursymal subarachnoid hemorrhage
  3. List two dinstinct patterns of angiographically negative nonaneurysmal subarachnoid hemorrhage


1. Which of the following are two distinct patterns of subarachnoid hemorrhage. Aneurysmal and

  a. Intercerebral

  b. Perimesencephalic

  c. Cerebellar

  d. Ventricular


2. Which of the following if NOT common in perimesencephalic hemorrhage?

  a. Hydrocephalus

  b. Good outcome

  c. good clinical grade on admission

  d. rapid clinical improvement


3. Nonaneurysmal subarachnoid hemorrhage is defined as:

  a. Traumatic aneurysm

  b. Including intracerebral hemorrhage

  c. Spontaneous and of unknown etiology

  d. Intraventricular hemorrhage


4. Perimesencephalic NASAH is characterized by CT evidence of blood confined to:

  a. Midbrain cisterns

  b. Quadrigeminal cisterms

  c. Posterior fossa

  d. Ventricles


5. All of the following are typical of perimesencephalic NASAH except:

  a. Younger age at onset

  b. Female sex

  c. No loss of consciousness

  d. Low risk of rebleeding


6. Which of the following is the imaging study of choice for SAH?

  a. MRI

  b. PET Scan

  c. CT

  d. SPECT


7. Which of the following describes the typical headache pattern for perimesencephalic NASAH?

  a. Thunderclap

  b. Gradual onset

  c. Dull ache

  d. Sudden onset


8. The risk of vasospasm for patients with NASAH is:

  a. High

  b. Moderate

  c. Low

  d. Unknown


9. Patients with NASAH are at which of the following risk levels for recurrent hemorrhage?

  a. Risk is not increased

  b. Risk is low

  c. Risk is moderate

  d. Risk is unknown


10. In contrast to NASAH the blood pattern is SAH typically involves all of the following except:

  a. Carotid cisterns

  b. Sylvian fissures

  c. Subarachnoid spaces

  d. Midbrain cisterns