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Doctor insights on: Codman Programmable Shunt

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What's the chance (percentage) that an MRI will change the settings on a codman hakim programmable vp shunt? Can anything else change it?

What's the chance (percentage) that an MRI will change the settings on a codman hakim programmable vp shunt? Can anything else change it?

High: The codman hakin programmable vp shunt does not have the newer "locks" like the codman certas or the sophysa that prevent changes in a high magnetic field like an mri. In fact, neurosurgeons are trained to be prepared to re-program the vp shunt any time the patient has an MRI scan. Any time these shunts are near a high magnetic field, there is a risk that the shunt will change its setting. ...Read more

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Dr. Vicken Poochikian
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Shunt (Definition)

Device that allows the flow of usually a fluid between two places. Sometimes a shunt may be used during carotid endarterectomy surgery to maintain the blood flow to the brain while the carotid artery ...Read more


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Why is the codman hakim programmable vp shunt setting range so large? (30 to 200 mmh2o) what do the settings mean, and what's the average pressure?

Why is the codman hakim programmable vp shunt setting range so large? (30 to 200 mmh2o) what do the settings mean, and what's the average pressure?

Easy setting changes: The pressure settings can be viewed as a measure of how much fluid is allowed to drain through the shunt. The lower the pressure setting, the more fluid can drain through the system. A typical setting is between 110-130 but treating hydrocephalus is not always a "one size fits all" for every patient. Some individuals have side effects at certain settings and need a 'different pressure setting'. ...Read more

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Dr. Vicken Poochikian
36 years in practice
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If codman hakim programmable vp shunt is set at 140, how much fluid is being drained?

If codman hakim programmable vp shunt is set at 140, how much fluid is being drained?

Depends: The 140 refers to a threshold opening pressure of 140 mm water for the pressure regulating valve. The volume of CSF drained will depend on the extent to which the intracranial pressure reaches that threshold. In general adults secrete about 500 ml of CSF per day. ...Read more

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What's are the difference between the three available programmable shunts commonly used to treat hydrocephalus?

What's are the difference between the three available programmable shunts commonly used to treat hydrocephalus?

Several Differences: Several differences exist. One the number of pressure settings, available to program, another is the ability to tolerate exposure to mri. Finally, the ability to 'virtually shut the device off' by using a high pressure setting is another feature present that may or may not be present in a given device. Disclosure: i work for one of the companies that make these devices. ...Read more

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Age 27 yrs with hydrocephalus had III ventriculostomy 17 yrs ago and then had a programmable shunt 8 yrs ago, decompression surgery 5 yrs. ok to fly?

NOT A PROBLEM: Modern commercial aircraft all have pressurized cabins, set for approximately one mile, and you should not experience any issues which would directly affect brain or shunt function. Feel free to fly, you are truly in NO danger. ...Read more

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What is a shunt?

What is a shunt?

Shunt: A shunt is a structure or device that transfers body fluid or blood from one area of the body to another area. For example shunts are fashioned to relieve high pressure areas of cerebro spinal fluid by shunting the fluid away to low pressure areas. ...Read more

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Dr. Vicken Poochikian
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What are the most common complications of shunt placement in adults?

What are the most common complications of shunt placement in adults?

Tree are a few: Infection, draining too much fluid, bleeding in brain are rare but possible complications. There are a few others that are extraordinarily rare as well. ...Read more

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How often does a shunt have to be replaced ?

Depends: It depends on the growth of the child, if the shunt gets plugged or infected. ...Read more

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How serious is a left to right shunt and what will it take to repair it?

Depends: On the size and degree of shunting as well as the presence osf associated symptoms such as shortness of breath, arrythmias or neurologic symptoms. An echocardiogram is extremely helpful . See your doctor. ...Read more

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