Brain mapping is a technique where the biological quantities of a human brain are represented as spatial quantities resulting in maps. As with many other medical technologies, brain mapping is fast-evolving as well. Among several uses, brain mapping is chiefly used while performing surgery on the brain.

When surgery is to be performed on the brain such as surgery for epilepsy, the surgeon would want to comprehend how the brain areas are affected by seizures. The surgical intervention is meant for removing as much as seizure focus as possible while preserving crucial functions like understanding, speech, vision, movement, and sensation.

Why is brain mapping performed?
Brain mapping is a process which helps in identification of functions of various parts of the brain. Mapping the brain by stimulating different areas of the brain areas can aid in creating a map for a particular person. The map allows the doctor in understanding what parts of the brain are responsible for performing critical functions including sensation, movement, speech and other functions.

Which functions of the brain can be mapped electrically?
Typical areas of the brain which have motor, language, visual and sensory functions are needed to be mapped. When current is applied to a single area at a time, the doctor understands which part of the brain is responsible for which function.
When the patient is not able to speak due to the current, then the area is likely to be crucial for language function. If the limbs, face or trunk of the patient stop moving as the current passes, the area that is tested is responsible for movement. On the other hand, if the individual experiences tingling, numbing, and other sensations when the current is applied, it means that a sensory region is discovered.

How is electrical brain mapping performed?
Electrical brain mapping for guiding brain surgery for epilepsy can be performed in two distinct processes: directly during the surgery or in a two-stage procedure.

Two-stage procedure:
In the first stage of the process, the surgeon creates an opening in the skull which helps in exposing the surface of the brain. Small electrical contacts or electrodes are placed on the brain surface even though no brain tissue is removed. As soon as the electrodes are in the right position, the scalp is closed. The electrodes not only record the seizure of the patient electrically but also allow mapping of various areas of the brain. The last stage is surgery where abnormal brain tissues are removed.

Brain mapping process during surgery:
Electrical brain mapping may also be performed during the surgery which exposes part of the brain. This is termed as intraoperative brain mapping since it occurs while performing the main operation. The process of mapping may last for an hour to several hours at a stretch.

Brain mapping is also used to diagnose neurodegenerative diseases like Alzheimer s and Parkinson s. In these cases, the brain map shows extreme shrinkage of the brain due to tissue loss.

Brain Mapping Surgery - Why It Is Performed?

Our spinal disk resembles a jelly donut, wherein the softer insides are protected by the hard exterior. Sometimes, as a result of some injury or an accident the jelly slips out, leading to an extremely painful condition which in medical parlance is known as herniated disc. The pain that you are subjected to, during herniated disc, occurs as the nerves nearby are damaged due to the concussion. Apart from pain, herniated disc is preceded by other symptoms, some of them are:

1. Pain in the arm or the leg
Depending on which part of the body you have suffered the herniated disc, in the neck or in your lower back, this condition is succeeded by intense pain either near the buttocks or near the shoulders. It goes without saying that this pain increases sharply with movement.

2. Numbness
That part of the body where the nerves are damaged due to herniated disc often becomes numb and has no sensation whatsoever.

3. Weakness
Due to herniated disc, the muscles become weak that considerably impairs and curbs mobility.

However, there are various ways by which you can prevent a herniated disc. Some of them are-

1. Exercise
Exercise in any form and even for a short while yields several benefits. Your body invariably gains momentum and agility. If you exercise daily, your spine becomes more stable and strong, thereby preventing a possible herniated disc.

2. Maintaining the right and good posture
A lot depends on the way you sit and walk, in fact more than you can imagine. If you sit badly, it exerts a pressure on the spine and the discs. Subsequently, a good posture does the very reverse and curbs chances of a herniated disc in the future.

3. Keep a tab on the weight
It is always healthy to maintain the right weight, the one that keeps you away from the onset of various diseases. If you are overweight, it puts more pressure on the spine disk, thereby increasing the risk of developing a herniated disc.

Tips to Prevent Herniated Discs

Minimally invasive spinal surgery is a quicker and safer alternative to open surgery. The spinal discs, vertebrae and nerves are present deep inside the body. A small incision is made and the surgical instruments and a camera is inserted which push aside the muscles and reach the problem area.

Which medical conditions can be addressed with minimally invasive spine surgery?

1. Degenerative Disc Disease (osteoarthritis of the spine)
2. Herniated Disc (the disc protrudes from its right place)
3. Spinal Tumours
4. Vertebral compression fractures (collapse of the vertebra)
5. Lumbar spinal stenosis (narrowing of the space near the spinal cord)
6. Scoliosis (the spine curves sideways)
7. Spinal infections
8. Spinal instability

What are the goals of minimally invasive spine surgery?

1. Decompression: this procedure eases the pressure being exerted on the spinal cord or the nerve roots. This pressure can be the cause of pinched nerves.
2. Stabilization: sometimes, a segment of the spinal cord that has come loose can be the source of pain. A stabilizations surgery fuses the segment to the rest of the structure.



The three most common methods of minimally invasive spine surgery are-

1. Tubular: it is also called  muscle splitting  surgery. A tubular retractor passes through the muscles of the back and reaches the spine.
2. Mini-open: it is a lot like open surgery but with fewer risks and blood loss. The possibility of post-operation infection goes down significantly.
3. Endoscopic: it is also called a keyhole surgery. A small camera is introduced through a small incision and guided to the spine. The camera gives an internal view of the spine to the doctors.

The three types of Minimally Invasive Spinal Surgery are-

1. Microdiscectomy: involves the removal of the intervertebral disc that is putting pressure on the spinal cord.
2. Foraminotomy: spinal conditions can lead to narrowed foramen (the area where the spinal nerve exits the spine). The aim of the surgery is to expand the foramen.
3. Microlaminectomy: this is yet another type of decompression surgery. The aim is to relieve pain caused pinched nerves or a segment of the bone pressing down on the nerves.

What are the benefits of minimally invasive spine surgery?

  Speedy and pain-free recovery after surgery
  A patient is discharged the same day
  Very little loss of blood
  Reduced chances of infection
  Less scarring because the operation is done through small incisions
  Less muscle damage

Are there any risks attached to minimally invasive spine surgery?

No surgery is free of risks or side effects. Some common problems in the aftermath of minimally invasive spine surgery are-

  Allergies
  Reaction to anaesthesia
  Blood clots
  Infections
  In rare cases stroke and paralysis.

Minimally invasive spinal surgery incorporates the latest advances in the world of technology. It is the relatively hassle-free procedure and convenient for both doctors and patients.

Minimally Invasive Spinal Surgery - A Safer Alternative To Open Surgery!

Breast cancer is a type of cancer, which occurs due to the development of cancerous cells in breasts. Women are usually affected by breast cancer and breast cancer is one of the most common forms of cancer after skin cancer. Usually fatal if not diagnosed in its early stage, breast cancer is a very serious medical ailment. Read on more to find all about the different symptoms, causes, preventive measures and treatment of breast cancer.

Symptoms
Breast cancer has few distinct characteristics and if you have a few or all the following symptoms you could be more likely to suffer from breast cancer. 
a) The formation of a lump in your breast, which is different from the surrounding tissue and usually more thickened.
b) The discharge of bloody fluid  material from the nipples.
c)  Sudden change of the size, shape and appearance of the breast.
d) Certain distinct changes to the skin over the breast for example an indentation in the skin similar to that of a dimple.
e) Appearance of an extra nipple which is inverted.
f)  If the darkened area around the nipples known as the areola is flaking or peeling off.
 
Causes
Studies and researches remain inconclusive on what causes breast cancer. Breast cancer occurs due to abnormal division of the cells located in the breast, which over time accumulate and form lumps. They
might spread to other parts of the body. Breast cancer is caused mainly due to a complex interaction of personal genetics, environment and lifestyle choices. Breast cancer can also be caused due to genetics as about 5% to 10% of cases are due to gene mutations which pass onto generations.

Risk factors
There are certain factors, which increase the probability of contracting breast cancer. Increasing age, personal and family history of breast cancer, obesity, radiation exposure, pregnancy at an older age, postmenopausal hormone therapy are some of the factors that increase the chances of breast cancer.

Treatment
Several forms of surgical methods exist to treat breast cancer. Depending on the condition and spread of the disease a suitable surgery is performed. These include mastectomy, lumpectomy, axillary lymph node dissection and removal of both breasts. Other forms of treatment include chemotherapy or the use of high doses of drugs to destroy cancerous cells. Radiation therapy where X-rays are used to destroy the cancer cells is also effective.

All About Breast Cancer

In case you have a diseased uterus, which makes you infertile, you can undergo a procedure known as uterus transplant or uterine transplant to get pregnant. In the process of sexual reproduction, a diseased uterus does not allow embryonic implantation. This factor is referred to as uterine factor infertility or UFI. As a result, you will not be able to get pregnant.

Who requires a uterus transplant?
This procedure involves women who have UFI and women who had their uterus removed by hysterectomy. Women who have a damaged uterus on account of an injury or infection, which does not function anymore, can also undergo a uterus transplant procedure. Women from the age of 21 to 45 are eligible for this procedure. Many women are born without having a uterus. This condition is called Mayer-Rokitansky-K ster-Hauser syndrome.

Procedure
Uterus transplantation begins with undertaking a uterus retrieval surgery on the uterus donor. The uterus, which is recovered has to be stored and transported to the location of the patient undergoing the transplant. An ischemic tolerance may last over 24 hours. Three major surgeries have to be carried out with the recipient. Firstly, a transplantation surgery is required in which the donor s uterus gets transplanted. In case pregnancy develops, a caesarean section surgery has to be performed. The patient is given immune suppressive therapy. After childbirth, a hysterectomy is done in order to terminate the immune suppressive therapy.

Will the women be able to get pregnant after having sex?
Women receiving a uterus transplant will not be capable of becoming pregnant without undergoing fertility treatments. The transplanted uterus is not connected with the fallopian tubes, which is the location of the normal fertilisation process. The women will require to carry out IVF or in vitro fertilisation to become pregnant after a uterus transplant. IVF is a process in which the eggs are removed from the ovaries and get fertilised in a laboratory. Then, they are implanted in the uterus. After undergoing the uterus transplant procedure, a woman has to wait for a period of one year. The uterus requires time for healing and after recovery, the embryo may be implanted for pregnancy. After giving birth successfully, a woman will be able to keep the transplanted uterus.

She has the option to get pregnant again. However, after giving birth twice, a hysterectomy must be carried out for the removal of the uterus. This is done so that the woman can stop using the immune suppressant drugs, which are associated with major risks. Uterus transplant is a relatively new technology. In October 2014, the first healthy baby was born to a woman who had undergone a uterus transplant. This surgery is kind of experimental in nature and is usually the last option for getting pregnant. 

Diseased Uterus - Can it be Replaced?

A brain stroke can affect anyone at any point of time when the supply of blood to the brain is interrupted. It can threaten major physical functions and can prove to be fatally dangerous at times. The brain stem which is placed right above the spinal cord controls the breathing, heartbeat and levels of blood pressure. It is also in charge of controlling some elementary functions such as swallowing, hearing, speech and eye movements. 

What are the different types of strokes?
There are three main kinds of stroke: ischemic strokes, hemorrhagic strokes and transient ischemic attacks. The most common type of brain stroke is the ischemic stroke is caused by narrowing or blocking of arteries to the brain, which prevents the proper supply of blood to the brain. Sometimes it so happens that the blood clot that has formed elsewhere in the body have travelled via the blood vessels and has been trapped in the blood vessel which provides blood to the brain. When the supply of blood to a part of the brain is hindered, the tissue in that area dies off owing to lack of oxygen. The other variant of brain stroke is termed as hemorrhagic stroke is caused when the blood vessels in and around the brain burst or leak. Strokes need to be diagnosed and treated as quickly as possible in order to minimize brain damage.  Remembering the F.A.S.T. acronym can help with recognizing the onset of stroke (Face, Arms, Speed, Time - explained below). 

What are the common symptoms of a brain stroke?
The symptoms of the brain stroke are largely dependent on the area of the brain that has been affected. It can interfere with normal functioning, such as breathing and talking and other functions which human beings can perform without thinking such as eye movements or swallowing. Since all the signals from the brain as well as other parts of the body traverse through the brain stem, the interruption of blood flow often leads to numbness or paralysis in different parts of the body.

Who is likely to have a stroke?
Anyone is at a risk of developing brain stroke although ageing is directly proportional to the risk of having a stroke. Not only that an individual with a family history of brain stroke or transient ischemic attack is at a higher risk of developing stroke. People who have aged over 65 accounts for about 33 percent of all brain strokes. It is important to point here that individuals with high blood pressure, high blood sugar, cholesterol, cancer, autoimmune diseases and some blood disorders are at a higher risk of developing brain stroke.

There are a few factors which can increase the risk of developing stroke beyond any control. But there are certain lifestyle choices as well which aids in controlling the chances of being affected by stroke. It is crucial to refrain from long-term hormone replacement therapies as well as birth control pills, smoking, lack of physical activity, excessive use of alcohol and drug addiction. A brain stroke is a life-threatening medical condition, and when an individual has symptoms that resemble that of stroke, it is crucial to seek immediate medical help.

Treatment for stroke

Treatment depends on the type of stroke.
Ischemic strokes can be treated with 'clot-busting' drugs.
Hemorrhagic strokes can be treated with surgery to repair or block blood vessel weaknesses.
The most effective way to prevent strokes is through maintaining a healthy lifestyle.
What is TPA?
TPA is a thrombolytic or a  Clot Buster  drug. This clot buster is used to break-up the clot that is causing a blockage or disruption in the flow of blood to the brain and helps restore the blood flow to the area of the brain. It is given by intravenous (IV). This can be given only within 4.5 hrs of the onset of symptoms

Time is brain

Remember Every second Loss means brain cells die.
Rush to the nearest Stroke Centre whenever you experience such symptoms.
U can save the brain cells dying if you reach within 4.5 hrs by the CLOT BUSTER. 
Endovascular procedures 
Another treatment option is an endovascular procedure* called mechanical thrombectomy, strongly recommended, in which trained doctors try  removing a large blood clot by sending a wired-caged device called a stent retriever, to the site of the blocked blood vessel in the brain

Stroke prevention
The good news is that 80 percent of all strokes are preventable. It starts with managing key risk factors, including 

High blood pressure,
Cigarette smoking,
Diabetes
Atrial fibrillation and
Physical inactivity.
More than half of all strokes are caused by uncontrolled hypertension or high blood pressure, making it the most important risk factor to control. 
Rehabilitation
The best way to get better after a stroke is to start stroke rehabilitation ("rehab"). In stroke rehab, a team of health professionals works with you to regain skills you lost as the result of a stroke.

Brain Stroke - Things You Must Know!

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