What is doll's head maneuver?

USA. Synonyms. Doll's eye movement; Oculocephalic reflex. Definition. The doll's eye maneuver is executed by quickly turning the patient's head horizontally from side to side or vertically up and down while holding the eyelids open.

What does doll's eye response mean?

The examiner observes a positive oculocephalic reflex when the patient moves their eyes opposite of the rotation of their head, such that their eyes stay looking forward (like a doll's eyes).

What is the doll's eyes test?

Typically the doll's eyes reflex is elicited by turning the head of the unconscious patient while observing the eyes. The eyes will normally move as if the patient is fixating on a stationary object. If there is a negative doll's eyes reflex then the eyes remain stationary with respect to the head.

What does negative doll's eyes mean?

Negative Doll's eyes would stay fixed midorbit, so having negative "doll's eyes" is a sign that a comatose patient's brainstem is not intact. There is one very important contraindication of this examination - trauma of a cervical spine - because we could seriously injured patient.

What is Oculocephalic maneuver?

OCULOCEPHALIC REFLEX

the patient's eyes are held open. the head is briskly turned from side to side with the head held briefly at the end of each turn. a positive response occurs when the eyes rotate to the opposite side to the direction of head rotation, thus indicating that the brainstem (CN3,6,8) is intact.

Normal and Abnormal Eye Movements

What is a Dysconjugate gaze?

Definition. Dysconjugate gaze is a failure of the eyes to turn together in the same direction.

What a positive doll's eye reflex indicate?

If reflex deviations of the eyeballs of the examined person occur in the direction opposite to turning the head, a positive doll's eyes reflex is diagnosed. If the doctor suspects damage to the stem structures, a negative test result is diagnosed.

How do you detect brain death?

Is doll's eye normal?

The normal doll's eyes reflex is NOT dependent on visual fixation of a stationary object, indeed it is present in comatose patients who are blind or in the dark.

What is doll's eye reflex in newborn?

The vestibulo-ocular reflex (VOR) is generally tested by turning the patient's head on his/her long axis and observing for the doll's eyes response(DOLL): the eyes deviate opposite to the direction of head rotation.

How long does the brain stay alive after the heart stops?

Normally there is no measurable, meaningful brain activity after the heart stops beating. Within two to 20 seconds the brain “flatlines.”

Can a person who is brain dead open their eyes?

For example, they may open their eyes but not respond to their surroundings. In rare cases, a person in a vegetative state may show some sense of response that can be detected using a brain scan, but not be able to interact with their surroundings.

What is Lazarus reflex?

The Lazarus sign or Lazarus reflex is a reflex movement in brain-dead or brainstem failure patients, which causes them to briefly raise their arms and drop them crossed on their chests (in a position similar to some Egyptian mummies).

How do you elicit Decorticate?

press a pen hard on one of the patient's fingernails. Comatose patients may demonstrate motor responses indicative of more generalized reflexes. Decorticate posturing consists of adduction of the upper arms, flexion of the lower arms, wrists and fingers. The lower extremities extend in decorticate posturing.

How do you test for cranial nerves in a comatose patient?

Is oculocephalic reflex normal?

A normal response is for the eyes to move in the direction opposite the head movement, such as looking left as you turn her head to the right. The oculocephalic reflex is absent if her eyes move in the same direction as her head or stay fixed at midline.

What is paroxysmal tonic Upgaze?

Paroxysmal tonic upgaze (PTU) is a syndrome of childhood manifesting as sudden ocular movements with sustained upward deviation of the eyes. We describe the outcome of 6 patients, after a follow-up of 10 years, with onset of the disease in childhood.

What is Opthalmoplegia?

Ophthalmoplegia is the paralysis or weakness of the eye muscles. It can affect one or more of the six muscles that hold the eye in place and control its movement.

What is divergent gaze?

In ophthalmology, divergence is the simultaneous outward movement of both eyes away from each other, usually in an effort to maintain single binocular vision when viewing an object. It is a type of vergence eye movement.

How long does it take for a body to get cold after death?

It takes around 12 hours for a human body to be cool to the touch and 24 hours to cool to the core. Rigor mortis commences after three hours and lasts until 36 hours after death. Forensic scientists use clues such as these for estimating the time of death.

What part of the brain dies first without oxygen?

In particular, the temporal lobe (at the temples) is sensitive to oxygen deficiency which is also where the memory is situated. A lack of oxygen from three to nine minutes can result in irreversible brain damage! In case of a cardiac arrest a CPR (Cardiopulmonary resuscitation) is best started within two minutes.

Is it painful when your heart stops?

Some people have chest pain before they become unconscious from cardiac arrest. However, you won't feel pain once you lose consciousness.

What are the 5 newborn reflexes?