Dr. Zaki treats the following disorders

Neurological disorders

 Sleep disorders

Dr. Zaki and her trained staff perform the following tests

Sleep disorder tests

MSLT (The Multiple Sleep Latency Test)  is a sleep disorder diagnostic tool. It is used to measure the time elapsed from the start of a daytime nap period to the first signs of sleep, called sleep latency. The test is based on the idea that the sleepier people are, the faster they will fall asleep. The test consists of four or five 20-minute nap opportunities set two hours apart, often following an overnight sleep study. During the test, data such as the patient's brain waves, EEG, muscle activity, and eye movements are monitored and recorded. The entire test normally takes about 7 hours during the course of a day.
 
Polysomnography (PSG) is a sleep study. A sleep study monitors you as you sleep, or try to sleep. It is obtained by placing electrodes on your chin, scalp, and the outer edge of your eyelids. These must remain in place while you sleep. Signals from the electrodes are recorded while you are awake (with your eyes closed) and during sleep. The time it takes you to fall asleep is measured, as well as the time it takes you to enter REM sleep. Monitors are used to record your heart rate and breathing will be attached to your chest. These also must stay in place while you sleep. A specially trained health care provider will observe you while you sleep and note any changes in your breathing or heart rate. The number of times that you either stop breathing or almost stop breathing will be measured.
 
CPAP (Continuous Positive Airway Pressure) is the device used to treat sleep apnea by sending positive airway pressure at a constant, continuous pressure to help keep an open airway, allowing the patient to breathe normally through his/her nose and airway.
 
Neurological disorders tests
 
 
EMG (Electromyogram with Nerve conduction studies)  measures the electrical activity of muscles at rest and during contraction. Nerve conduction studies (another part of an EMG) measure how well and how fast the nerves can send electrical signals. During an EMG, a needle electrode inserted directly into a muscle records the electrical activity in that muscle. A Nerve conduction study uses electrodes taped to the skin (surface electrodes) to measure the speed and strength of signals traveling between two or more points.
 
EEG (Electroencephalography) is the recording of electrical activity along the scalp. EEG refers to the recording of the brain's spontaneous electrical activity over a short period of time, usually 40 minutes, as recorded from multiple electrodes placed on the scalp.  The EEG recording is obtained by placing electrodes on the scalp with a conductive gel or paste, usually after preparing the scalp area by light abrasion to reduce impedance due to dead skin cells.
 
AEEG (Ambulatory electroencephalography)  monitoring is a relatively recent technology that allows prolonged electroencephalographic (EEG) recording in the home setting. Its ability to record continuously for up to 72 hours increases the chance of recording an ictal event or interictal epileptiform discharges. It is the obtained the same as an EEG, except you wear it home for prolonged monitoring. 
 
VEP (Visual Evoked Potential) An evoked electrophysiological potential is extracted from the electroencephalographic activity recorded by electrodes at the scalp surface. This test evaluates the function of the visual pathway from the retina to the brain’s occipital cortex. It is most useful in assessing diseases such as multiple sclerosis and optic neuritis.
 
VNG (Videonystagmography) /ENG (Electronystagmography) Measures eye movements related to dizziness and provides information about responses of the vestibular system to quick repetitive head movement (High Frequency Head Shake), different positions of the body (Positional Testing), movement into those positions (Dix-Hallpike Maneuvers and Roll Tests), and if one inner ear is functioning differently than the other (Caloric Testing).

SSEP (Somatosensory Evoked Potential) Studies the relay of body sensations to the brain and how the brain receives those sensations. An electrode placed on the arm or leg generates an electrical signal, while recoding electrode are place don the head and /or spine. The test assesses how the spinal cord and brain transmit information about body sensations through the peripheral nerves. It can localize a “signal blockage” either in the relay system or in the interpretive center, useful in diagnosing multiple sclerosis, radiculopathies and other diseases.  

ABI (Ankle-Brachial Index Test) This test is done by measuring blood pressure at the ankle and in the arm while a person is at rest. The ankle-brachial index (ABI) result is used to predict the severity of peripheral arterial disease (PAD). A slight drop in your ABI with exercise means that you probably have PAD. This drop may be important, because PAD can be linked to a higher risk of heart attack or stroke.

CANS (Computer administered Neuropsychological Screen) This includes a battery of  tests for mild cognitive impairment.  It comprehensively measures a person’s cognitive skills in memory, symbol fluency and executive function. 
 
TOVA (Test of variables of Attention) This is a computerized test of attention that assists in the screening, diagnosis, and treatment monitoring of attention disorders, like Attention Deficit Hyperactivity Disorder (ADHD).
 
 
 
Other Services
 
Botox This protein injected into muscle tissue stops abnormal muscular contraction resulting from excess neuronal activity. For those suffering from neurological disorders listed below, Botox therapy can provide relief for a few weeks to as long as several months. Injections are performed on a repeat basis of every 3 months.
 
Infusion Center We infuse Tysabri (disease modifying drug used for the diagnosis of MS. Solumedrol (steroids), to be infused for an MS exacerbation.