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Microcap & Penny Stocks : AMERICAN BIOMED, Minimally Invasive Technology (ABMI) -- Ignore unavailable to you. Want to Upgrade?


To: Bill Rogers who wrote (189)3/16/1998 10:18:00 PM
From: Ray Tarke  Respond to of 2887
 
One out of 5 Americans,

Over 65 million Americans suffer from some form of coronary or peripheral
vascular disease. The most noted of these diseases is cardiovascular. This
disease is progressive and degenerative, and is characterized by a buildup of
fatty materials ("plaque") within the lining of the arterial blood vessels. The
buildup of plaque results in an obstruction (stenosis) that reduces blood flow
through the arteries and may eventually lead to total blockage causing tissue
damage and death. The plaque forms at varying degrees of hardness, eccentrically
or concentrically within the artery, reducing the elastic nature of the vessel
and thereby compromising the vessel's ability to efficiently pump blood to vital
organs.

Despite significant advances in product technologies, the disease continues
to be the leading cause of mortality in the U.S. today. Degenerative
atherosclerotic narrowing of the arteries that feed the heart ("coronary
arteries"), known as coronary heart disease, afflicts over six million persons
in the U.S. alone. It is largely responsible for approximately 1.5 million
"heart attacks" each year in the U.S., of which approximately 500,000 result in
death. Atherosclerosis also affects arteries in the kidneys ("renal arteries")
and in the abdomen, groin and legs ("peripheral arteries") and is a leading
cause of strokes, reno-vascular hypertension (a type of high blood pressure) and
peripheral vascular disease.

Prior to the late 1960's, pharmaceuticals represented the most common form
of treatment for coronary heart disease and other forms of atherosclerosis.
While often effective in alleviating many symptoms, pharmaceuticals did not
address the underlying problems of narrowed arteries and reduced blood flow.
During the late 1960's, cardiovascular surgeons pioneered a new type of open
heart surgery that grafted a blood vessel from the patient's leg to the diseased
coronary artery to bypass the blockage, thereby providing a longer-term
treatment, but one that was highly invasive, costly and required a lengthy
hospital stay. Today, bypass graft surgeries of the coronary arteries and of
other peripheral vessels account for over 600,000 procedures annually in the
United States. Bypass surgery generally is performed when the patient displays
extensive deposits.

atherosclerotic plaque throughout the length of one or more vessels thereby
rendering impractical the attempted opening ("dilating") of the blocked
("occluded") arteries due to the procedural time required, the critical location
of the occlusion, or the inability to safely access the blockage.

In the late 1970's, cardiologists developed a less-invasive method of
treating atherosclerosis, the method known as balloon angioplasty. In its
simplest form, balloon angioplasty involves threading a small balloon-tipped
catheter through the arterial system to the site of the blockage. The balloon is
inflated, dilating the vessel and thereby displacing the plaque by pressing it
against the artery wall. The arterial opening is thereby enlarged, restoring
blood flow.

There are inherent risks in balloon angioplasty, including vessel
dissection, acute closure due to overstretching of the vessel, and the potential
that small pieces of plaque will break off and move downstream to block critical
parts of the blood vessel. The blood supply to critical heart tissue is
temporarily cut off while the balloon is inflated, increasing the risk of a
heart attack during the procedure. The balloon-dilated artery may spasm during
and/or immediately after the procedure and cut off the blood supply to critical
tissues. Balloon angioplasty is generally not considered suitable for patients
with extensive atherosclerosis nor for patients who suffer from very severe
blockages of arteries that supply large areas of the heart with blood.
Additionally, since the atherosclerotic plaque is not removed during the balloon
procedure and because certain damage to the inner lining of the arteries can
occur when the balloon is inflated, there is a high rate of re-blockage or
"restenosis" of the treated artery(ies).

The limitations inherent in balloon angioplasty have created a significant
opportunity for alternative types of angioplasty devices, including stents and
atherectomy devices. A third method, lasers, has been shown to be damaging to
the arterial walls and now is used only for narrowly defined clinical
indications. Laser systems are expensive and require special facilities and
maintenance. Stents and atherectomy devices are rapidly becoming the growth
products in atherosclerotic procedures.

The number of angioplasty (including atherectomy) procedures performed and
the market for coronary and peripheral angioplasty devices and accessories have
grown at a rapid rate as a result of a number of factors, including the general
aging of the world's population. Industry sources project the stent
and atherectomy device market to grow at a rate of 50% and 30% per annum, respectively(1). Based upon such projections, stents would become a $750 million
business by 1998, while the sale of Atherectomy devices would grow to $350
million in sales by 1998(1). Delivery catheters for coatings of the treated
stenosis is projected to be over $100 million by 1998.

Regards,
R.T



To: Bill Rogers who wrote (189)3/16/1998 10:19:00 PM
From: Jeffrey L. Henken  Respond to of 2887
 
Atherectomy

By Physicians of the Geisinger Health System

Bypass surgery isn't the only option to deal with clogged heart arteries. Several other procedures are now available that allow us to remove blockages from the heart arteries without opening the patient's chest.

You may already be familiar with one of those procedures, balloon angioplasty. It's a less costly and usually less risky method in which a tiny balloon inserted through an artery inflates in the diseased artery, compressing the plaque build-up and widening the pathway for blood.

But you may not be familiar with a new technique that removes the plaque. One version of the procedure uses a catheter tipped with a cutter to shave away the plaque and store it in a tiny receptacle for removal from the body. Before carrying out the procedure, we use special imaging equipment in a diagnostic heart catheterization to look into the body and locate the blockage. Then we insert the catheter device through a thigh artery, following its movement up the body on a monitor. Like angioplasty, this method generally results in shorter hospital stays and recuperation periods. Heart specialists are also experimenting with catheter-equipped lasers to vaporize blockages, and they are attempting to perfect ultrasound techniques to destroy plaque and blood clots. In addition, they are using an array of other devices to cut through or crush blockages in leg arteries.

Heart-artery blockages develop from excess cholesterol in the blood. Among the factors contributing to cholesterol overload are smoking, a high-fat diet, high blood pressure, diabetes and obesity. In most people, dietary changes, weight loss, smoking cessation and an increase in exercise will help curtail the build-up. But if the blockage has grown large enough to restrict blood flow or cause a heart attack, then an invasive treatment method - bypass surgery or one of the other methods - may be necessary.

Because many non-bypass procedures are so new, their long-range success remains uncertain. This much is known, though: Depending on the location, length, and number of blockages, bypass surgery continues to be the preferred method for many patients. Nevertheless, inroads made so far with alternative procedures may result in a gradual shift away from surgery.

Bill thanks for sharing your knowledge and experiences with us. Heart disease is rampant in my family. Fortunately I have none of the contributing factors.

YET!

In the years ahead many minimally invasive proceedures will become increasingly popular alternatives to bypass surgery.

I have been reading all I can about ABMI's OmniCath and I have come to the conclusion that this device has a tremendous number of advantages over the competing devices. Still atherectomy may work best in combination with balloon angioplasty. I personally have no desire to have any open heart surgery but a minimally invasive procedure?

americanbiomed.com

Anyone want to hear more about this let me know?

I might go for that if I'm forced to by future coronary disease.

In the meantime lets avoid the cookie jar!

Go ABMI!

Regards, Jeff