Saturday, May 12, 2012

Meniere








                     







Meniere's disease occurs in the inner ear and causes dizziness, temporary hearing loss, and/or ringing and pressure in the ears. Attacks happen suddenly and can be as brief as 20 minutes or as long as several hours. Symptoms include a continuous, low-pitched noise or feeling of pressure in the ear.

In 1861 Prosper Menière, a French medical practitioner, identified the syndrome affecting people who suffered extreme dizziness, ringing in the ears and temporary total loss of balance accompanied by nausea or a combination of all symptoms.  The disease that bears his name is thought to be a condition in which there is an excess of endolymph, an inner ear fluid creating a condition called ‘hydrops’.
Anybody can get Meniere's, male or female, young children to old age pensioners.

Tinnitus
An abnormal ringing noise inside the ear. Distorted hearing and pressure in the ear often occurs in conjunction with the vertigo.

Vertigo
A form of dizziness where your surroundings appear to spin due to involuntary eye movements. In Meniere’s Disease, the ‘attacks’ usually occur in clusters and can occur without warning, often accompanied by vomiting.

Hearing Loss
Fluctuating hearing loss with a feeling of pressure or fullness in the ear is thought to be due to inner ear fl uid build up. Hearing returns to normal levels following a vertigo attack, but as the disease progresses, measurable and permanent hearing loss occurs as delicate hair cells are destroyed. Hearing aids are then required.

Balance Problems
The last stage is often referred to as ‘burnt out’. Hearing loss may be severe. Tinnitus is less of a problem, attacks of vertigo are less frequent and eventually cease. Vomiting, nausea and dizziness are mild. When the ear has lost 50% of its balance function, a persistent feeling of of unsteadiness or floating may replace attacks of vertigo. Imbalance is more noticeable in the dark. Some people may experience ‘drop attacks’ (Tumarkin’s Crises) when without warning, balance is suddenly lost and they drop to the ground.

Causes

Meniere’s Disease is associated with an abnormality of a part of the inner ear called the labyrinth. This includes the cochlea (which converts vibrations caused by sound waves into signals to the brain) and the semicircular canals (which control balance and a sense of bodily motion). Meniere’s disease may result when the balance of fluids contained in the labyrinth is interrupted by a blockage or rupture; researchers are still unsure of this condition’s exact causes.
•    A feeling of pressure or “fullness” in the affected ear
•    Hearing loss (which is usually temporary but can become permanent over time)
•    Vertigo (a sense of dizziness and imbalance)
•    Tinnitus (a ringing, buzzing, or other sound with no external cause)
•    These symptoms usually last for two to four hours at a time, although this can vary.
•    In the hydropic ear, excess fluid, in some way, disturbs the tiny balance and hearing mechanisms and produces the symptoms. The extra pressure in the delicate balance and hearing canals distorts or blocks sound and balance information to the hearing and balance nerve and to the brain. This may be the cause of roaring or tinnitus, hearing loss and incorrect balance information, rather like an ‘error message’ to the brain. Sufferers can often experience vertigo, 'brain fog' and visual disturbances.

Treatment

The treatment for Meniere’s disease differs from patient to patient. At CEI, Otologists strive to diagnose the cause of the disorder and then to treat the symptoms of the disorder. This includes first the symptoms of vertigo or balance disorder followed by hearing loss and tinnitus.

In many patients, dietary modifications in the form of low salt diets plus diuretic therapy to lower inner ear fluid pressure can reduce symptoms. In others, second line therapy in the form of the Menniette Device, Intratympanic Gentamycin, or Endolymphatic Shunt Surgery are needed to control symptoms. If other methods fail, surgery to eliminate the ability of the balance nerve to send signals to the brain is needed. Hearing loss associated with Meniere’s Disease can be ameliorated through the use of hearing aids, BAHA implantation, or in the case of individuals with bilateral Meniere’s Disease, cochlear implants.

The progression of Meniere’s disease is unpredictable. Symptoms may become more severe, remain the same, or disappear completely. Overall, over 95% of patients with Meniere’s disease will achieve vertigo control when treated by a CEI Otologist. Treatment is very individualized and begins with a thorough work up and evaluation followed by a treatment plan.



Saturday, February 18, 2012

Coronary Artery Disease








The heart is a muscular organ that pumps blood to the body at an average of 72 times per minute. Oxygen and nutrients serve as a fuel supply to the pump and are carried to heart in the form of blood that flows through the coronary arteries. Thus, the coronary arteries serve as fuel pipe lines to the heart muscle.

Coronary Heart Disease (CHD), Coronary Artery Disease (CAD) is the most common form of heart disease.

The coronary arteries (Strong, elastic blood vessels that carry blood away from the heart to the rest of the body) are blood vessels that carry blood and oxygen to the heart muscle. They are located along the surface of the heart. When these arteries become clogged with fatty deposits called plaque (buildup of fatty deposits such as lipids, cholesterol, calcium and other materials on the inner walls of blood vessels). The buildup of plaque contributes to atherosclerosis, coronary artery disease, and stroke), it is called coronary artery disease (CAD). Plaque forms in the arteries over many years in a process called atherosclerosis. Clogged arteries can keep the heart from getting enough blood and oxygen and can cause chest pain (angina). If a blood clot forms, it can suddenly cut off blood flow in the artery and cause a heart attack.

Coronary artery disease may also be referred to as coronary heart disease (CHD), ischemic heart disease, or atherosclerotic heart disease.

Atherosclerosis is the main cause not only of coronary artery disease but of the whole group of diseases called cardiovascular diseases—diseases of the heart and blood vessels. Clogged arteries in the legs or arms lead to peripheral artery disease (PAD), and clogged arteries in the brain can result in stroke.

 Causes

The cause of CAD is a narrowing of the coronary arteries that supply oxygen and nutrients to the heart muscle. Most of the time, narrowing of coronary arteries is the result of atherosclerosis, which is the thickening and hardening of the inside walls of arteries. Some hardening of the arteries occurs normally as you grow older.

Symptom

·        tightness or a squeezing sensation across the chest
·        burning or pressure beneath the breast bone
·        pain or ache radiating to the shoulders, jaw, arms, throat, neck, or upper abdomen
·        fatigue
·        nausea or vomiting
·        sweating
·        weakness
·        shortness of breath
·        lightheadedness

Men will often feel:
·        constant pain in the middle of the chest that may radiate to the neck, jaw, left shoulder, or arm
·        tightness or squeezing in the chest
·        a sensation of "heaviness" or heavy indigestion
·        sweating, nausea, and vomiting
·        shortness of breath
·        anxiety, fear, or denial

In women, the main symptoms can be similar to men but may also include:
·        shoulder, neck, or back pain
·        feeling a sharp pain on breathing in cold air
·        unusual fatigue or weakness
Risk Factors

here are many risk factors associated with coronary heart disease and stroke. The major risk factors, tobacco use, alcohol use, high blood pressure (hypertension), high cholesterol, obesity, physical inactivity, unhealthy diets, have a high prevalence across the world.

Modifiable risk factors:
Hypertension
Abnormal blood lipid levels
Tobacco
Physical inactivity
Type 2 diabetes
Saturated fat

Treatment

There are three approaches for treating Coronary Artery Disease:
1.     Medication
2.     Interventional Cardiology
3.     Cardiovascular Surgery