Renal artery stenosis is a narrowing of arteries that carry blood to one or both of the kidneys. Most often seen in older people with atherosclerosis (hardening of the arteries), renal artery stenosis can worsen over time and often leads to hypertension (high blood pressure) and kidney damage.

What is hemodialysis and how does it work? Who needs it? How do you prepare for it? In the United States, over 30 million Americans have kidney disease, and sometimes, kidney disease progresses to kidney failure or end-stage renal disease. When this happens, you cannot survive unless you have a kidney transplant or some form of dialysis. So today we're going to talk about hemodialysis.

Your kidneys are the two kidney bean-shaped organs that are located in your lower back, or in your flanks. And the kidneys are responsible for filtering out or cleaning your blood. They get rid of excess waste, excess toxins, and excess fluids. If your kidneys stop functioning, then you develop renal failure or end-stage renal disease.

What is Hemodialysis?
Hemodialysis, or blood dialysis, is the filtering of your blood outside of your body. So, if your kidneys stop working properly, the hemodialysis acts as a substitute kidney. Now it's important to note that hemodialysis does not actually correct your own kidney function. It does not fix or treat your kidneys.

#hemodialysis #drfrita

What is The Dialyzer?
The dialyzer is actually the filter. It's the main powerhouse of the hemodialysis system, and it is what actually acts as the substitute kidney. In the dialyzer, you have these hollow fibers that run through it, and these fibers are bathed in something called dialysates, or dialysis fluid.

How Often Are Patients Treated With Hemodialysis?
Most patients who are on hemodialysis are on it between three and six hours, about three days a week, especially if they go to a center.

How Does Hemodialysis Work?
So when you are on dialysis, how does your blood get from your body to the hemodialysis machine and then back to your body? Well, it does so through tubes, and those tubes are connected to your access, and we'll talk about access in just a moment. But as far as the tubing, the tubing is connected to your body.

Types Of Hemodialysis Access
Arteriovenous Fistula or AV Fistula
The AV fistula is the gold standard as far as hemodialysis access is concerned because it gives you the most efficient hemodialysis and it is the least likely to be infected.

Arteriovenous Graft or AV Graft
The AV graft is very similar to the AV fistula in that you still have a surgically connected artery and a vein, usually in the arm, but in the case where if you have veins that are rather thin or arteries that are thin and maybe too weak in order to really give you a properly functioning, substantial AV fistula, then the vascular surgeon may opt to add an artificial material in order to make that shunt a little stronger, or little more durable. And so, an AV graft is another option for dialysis access.

Catheter
If you're in a situation where you need temporary dialysis, or if you have acute kidney injury, then you may have a temporary Vascath placed, and it's usually placed in a vein of the neck, the internal jugular vein, or it can be placed in the groin, or in the femoral vein.

Who Needs Hemodialysis Treatment?
How do you know if you need hemodialysis, and when is it time to prepare? Well, if you follow up with your kidney doctor (nephrologist) regularly, he or she will be watching your labs. They'll be able to see those signs of your kidneys not functioning properly.

Most retinal tears need to be treated by sealing the retina to the back wall of the eye with laser surgery or cryotherapy (a freezing treatment). Both of these procedures create a scar that helps seal the retina to the back of the eye. This prevents fluid from traveling through the tear and under the retina, which usually prevents the retina from detaching. These treatments cause little or no discomfort and may be performed in your ophthalmologist’s office. With laser surgery, your ophthalmologist uses a laser to make small burns around the retinal tear. The scarring that results seals the retina to the underlying tissue, helping to prevent a retinal detachment.

Dr. Katherine Scovner from the Division of Nephrology at Massachusetts General Hospital discusses kidney dialysis.

A flail chest occurs when a segment of the thoracic cage is separated from the rest of the chest wall. This is usually defined as at least two fractures per rib (producing a free segment), in at least two ribs. A segment of the chest wall that is flail is unable to contribute to lung expansion. Large flail segments will involve a much greater proportion of the chest wall and may extend bilaterally or involve the sternum. In these cases the disruption of normal pulmonary mechanics may be large enough to require mechanical ventilation.

Cardiac Catheterization Video

Learn the SIRS Criteria and how to calculate it. Greater than or equal to 2 or more of the following: Temperature Fever of greater than 38°C (100.4°F) or Less than 36°C (96.8°F) Heart Rate Greater than 90 beats per minute Respiratory Rate Greater than 20 breaths per minute or PaCO2 of less than 32mm Hg White Blood Cell Count Greater than 12,000cells/mm³ or Less than 4,000cells/mm³ or Greater than 10% Bands

Intestinal obstruction.....

This video is only educational purposes and this is not for entertainment....this is surgery time

A diaphragm is a shallow, bendable cup that you put inside your vagina. It covers your cervix during sex to prevent pregnancy.

A new and safer method of inserting a Foley catheter suprapubically. The technique allows the insertion to be carried out in an Outpatient setting, thus saving time, cost and effort. By using the Seldinger technique, the product reduces the chances of bowel or bladder perforation and resultant morbidity.
The product has been chosen by The NHS National Technology Adoption Centre to help facilitate adoption of the product.
See www.mediplus.co.uk for more information

A clinical examination of the hands using the standard Look, Feel, Move approach. Specific​ examination structure derived from MacLeod's Clinical Examination 14th edition. Performed by Dr James Gill

Myelomeningocele remains the most complex congenital malformation of the central nervous system that is compatible with life. This lesion results when the neural tube fails to fold normally during postovulatory Days 21 to 27.[6] The exact cause of disorders remains under some historical debate and is not within the scope of this paper. Myelomeningocele within the context of this discussion refers only to lesions that involve an open caudal neural tube defect on the surface of the skin

How to treat a burn - How to treat burns at home

Amniocentesis,before the actual procedure, a local anesthetic is sometimes given to relieve the pain when inserting the needle used to withdraw the fluid. A needle is usually inserted through the mother's abdominal wall or at the end of the vagina, and through the wall of the uterus into the amniotic sac. With assistance from ultrasound, a physician aims towards an area of the sac that is away from the fetus and extracts a small amount of amniotic fluid for testing. The puncture heals, and the amniotic sac replenishes the liquid over a day or so. After the amniotic fluid is extracted, the fetal cells are separated from it using a centrifuge, and the fetal chromosomes are examined for abnormalities. Various genetic testing may be performed, but the three most common abnormalities tested for are Down's syndrome, Trisomy 18 and spina bifida. Amniocentesis can be performed as soon as sufficient amniotic fluid surrounds the fetus to allow a sample to be recovered relatively safely, usually no earlier than the 14th week of pregnancy. Often, genetic counseling is offered in conjunction with amniocentesis.

IVC filter is placed to prevent fatal Pulmonary Embolism due to Deep Venous Thrombosis (DVT). This particular patient had extensive DVT of Ilio-Femoral veins leading to massive swelling of left lower limb. The IVC filter was inserted via the Right Femoral Vein. This case was the first IVC filter placement of North Bengal and adjoining areas.

The primary functions of the liver are: Bile production and excretion. Excretion of bilirubin, cholesterol, hormones, and drugs. Metabolism of fats, proteins, and carbohydrates. Enzyme activation. Storage of glycogen, vitamins, and minerals. Synthesis of plasma proteins, such as albumin, and clotting factors.

This video describes the various positions a baby may be in prior to delivery.

With ECT, electrodes are placed on the patient's scalp and a finely controlled electric current is applied while the patient is under general anesthesia. The current causes a brief seizure in the brain. ECT is one of the fastest ways to relieve symptoms in severely depressed or suicidal patients.

Do you think you have a hernia?
What are hernias?
The hernias we address in this http://DoctorsExpressHartsdale.com Medical Minute are inguinal, or groin, hernias. More common in men than women, an inguinal hernia can occur when part of the small intestine protrudes through a weakness or tear in the area between your abdomen and your thigh- or your groin. It's possible for anyone to get an inguinal hernia, but it is more commonly found in males.

Hernias form a bulge and can be accompanied by pain. Men have an approximate 26% lifetime risk of having hernia at some point in their life, where as women have a much lower chance of one- only about 3% of women will experience a hernia at some point in their life. There are other types of hernias, such as abdominal, or "hiatal" hernias but groin hernias outnumber abdominal hernias by about 3 to 1.

What causes a hernia?
The cause of a hernia is not always known, but hernias are often the result of weak spots in the abdominal wall. Weaknesses can be due to congenital defects (present at birth) or formed later in life. Some risk factors for inguinal hernia include:
• fluid or pressure in the abdomen
• heavy lifting
• straining during urination or bowel movements
• obesity
• chronic cough
• pregnancy

Hernias often form in people with weakened abdominal muscles or in those who do a lot of heavy lifting or straining, which is why we see it quite often in young men. Physiology plays a part: men have testicles and scrotum which descend through the inguinal canal-much larger in men than in women. That is part of the reason men tend to be more susceptible to hernias than women.

Symptoms of hernia

Symptoms of inguinal hernia usually include a bulge in the groin area and pain, pressure, or aching at the bulge—especially when lifting, bending, or coughing. These symptoms usually subside during rest periods. Men may also experience swelling around the testicles.


Screening and Diagnosis of Hernias
If you are having abdominal pain or pelvic bulge and pain, you want to see physician, and he or she will do an exam. They will use their finger, to see if you have a bulge in your scrotum or on your groin and they'll see if its reducible or not. If the exam doesn't give them the answer, they can then perform an ultrasound, an inexpensive test that can tell you the same day whether a hernia is present.


What to do if you think you have a hernia
Most of the time hernias do not cause problems. People often live with hernias their entire life without them becoming aggravated or painful. When they do cause pain though, there is concern that complications may have arisen. Most common hernias are what we call reducible; you can take your finger or you can lie down in bed and due to the effects of gravity, the bulge in the groin will actually disappear, which means the intestinal contents actually go back into the abdominal cavity or to the correct location. If it's not reducible by lying down or using a finger or having a physician trying to reduce it, then there are concerns about complications such as strangulation, or incarceration occurring. If those concerns are there, then you need to see a surgeon, and there may be a need for surgery.

How to Treat a Hernia
As stated earlier, hernias can often be watched for years without being treated. If however, they are causing pain, we generally refer you to a surgeon who can do a very simple laparoscopic surgery.

If you suspect a hernia, but have not been diagnosed, you should see your doctor, and of course, we are happy to see you here at Doctors Express

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