Sympathectomy Hyperhidrosis

Hyperhidrosis is a medical condition characterized by excessive sweating. Excessive sweating can occur in the hands (palmar hyperhidrosis), underarms (axillary hyperhidrosis), feet (plantar hyperhidrosis) or face (facial hyperhidrosis). Although its exact cause is still unknown, most medical professionals believe that it is caused by the hyperactivity of the sympathetic nerve chains. The sympathetic nervous system is responsible for involuntary bodily functions and one of which, is the production of sweat, which is essential in regulating body temperature.

Hyperhidrosis is often a distressing, socially debilitating condition, affecting a small but significant proportion of the world population. While symptoms usually begin during adolescence, it can also occur in other age groups.

Treatment options given to patients who suffer from hyperhidrosis usually depend on the severity of their case and which body area is affected. Non-surgical treatments such as oral medications, anti-perspirants, ointments, botox injections and iontophoresis, are the usual initial options given to patients. When none of those treatments prove beneficial or effective, there are also surgical treatments available to patients seeking more permanent results.

In the past, surgical procedures done for hyperhidrosis cases usually involve a painful incision either at the chest, back or neck (e.g. upper thoracic sympathectomy). Most often than not, these highly invasive procedures result to complications such as brachial plexus, phrenic nerve injury, or Horner’s Syndrome, a condition that can cause dropping of the upper eyelids and eye dryness. In rare cases, excessive bleeding may likewise happen. Due to recent technological advances, minimally invasive surgical methods, such as thoracoscopic sympathectomy or otherwise known as endoscopic thoracic sympathectomy (ETS), were made possible.

ETS is a surgical procedure that intends to interrupt sympathetic nerve impulses sent to the sweat glands and prevent localized excessive sweating (usually in the hands and face). While the patient is under general anesthesia, a 5-mm. endoscope is inserted into a small incision made below the underarm to identify the second through fourth ganglia. The identified branches to the main sympathetic chain at each level are divided before the main chain is removed. The same procedure is done on the patient’s other side, which is crucial in preventing symptoms from recurring years later.

ETS is most effective in treating excessive hand and facial sweating, with a success rate of more than 98%. It also gives additional relief to excessive feet sweating. While it is a highly effective procedure with permanent results, it has very minimal complication rate. Incident of Horner’s Syndrome for instance, is about less than 1%.

As with most surgical procedures, ETS also has some side effects and the most common of which is compensatory sweating. Compensatory sweating occurs in about 50% of ETS patients. Also, there are reported cases of small pneumothorax after the operation, but in this case, no medical intervention is required and patients can usually go home after 24 hours.

While ETS is generally safe and a highly effective method in treating hyperhidrosis cases, it is still best for patients to look only for experienced, highly competent and certified surgeons for excellent and long-term results.

Hyperhidrosis Causes

Most of us experience sweating in the palms, feet and armpits. Producing sweat is almost a part of our daily lives. We treat this phenomenon as normal, sometimes unaware of the times that we produce excessive amounts of sweat. This is the primary symptom of hyperhidrosis. It is usually characterized by producing perspiration greater than the amount the body needed for thermal regulation. At first, we tend to disregard it, until we start feeling sticky in the armpits and our palms stay wet even while at rest. Soon, this uncomfortable condition begins to intrude into and affect your social life. It is probably the right time you knew more about excessive sweating or hyperhidrosis.

According to some studies, 3% of the total population suffers from hyperhidrosis. Most sufferers notice excessive sweating on specific parts of the body such as the underarms (axillary hyperhidrosis), face (facial hyperhidrosis) and feet (planar hyperhidrosis). As you see, sweating on these parts of the body is very common to most of us. We tend to be blind and treat this as normal, not knowing that it is already a symptom of hyperhidrosis. It is not widely known that such a disorder is a very serious medical condition that requires proper diagnosis and treatment.

Hyperhidrosis occurs when there is an abnormal response from the sweat nerves. A part of the brain called hypothalamus is responsible in sending the sensory signals to the sweat nerves. The hypothalamus is located in the chest cavity. The sweat nerves, as a part of the sympathetic nervous system, in turn throws signals to the sweat glands which results to producing sweat. When the signals violate the sending and response process, hyperhidrosis occurs. The sweat glands begin to produce excessive amount of sweats, and this liquid will seek outlets on your underarms, face, palms and feet, resulting to unwanted perspiration in such parts of our body.

We cannot purely blame all this to the uneven responses of our sweat nerves, however. There are a lot of factors contributing to why we perspire so much. By doing intense jobs and heavy activities such as vigorous exercise, we can expel extra liquid in our body. Our emotions can also trigger to generate sweat. Sweating stabilizes the corporal body temperature, especially when doing such activities.

Our skin glands are also the primary factor why hyperhidrosis occurs. Our skin has two kinds of glands: the apocrines and the eccrines. The apocrines do not contribute much in the regultation of body temperature. Basically, these glands can be found in the hair follicle and are not involved in the process of hyperhidrosis. The gland eccrines, on the other hand, is the major contributor for the hyperhidrosis. The increased secretion of the gland eccrines is the cause of such abnormalities. Eccrines are more concentrated in parts of the body such as the armpits, feet, palms, and are very important in regulating the body temperature.

Hyperhidrosis can be primary or secondary. Primary Hyperhidrosis has no specific origin. This is the most common type of hyperhidrosis and is attributed to a genetic factor. Everybody has the tendency to acquire primary hyperhidrosis, and this commonly manifests during the earlier stages of the person’s life. Secondary hyperhidrosis, on the other hand, is an acquired disorder due to an associated cause such as obesity, menopause and the use of antidepressive drugs.

Other factors such excess taking of drugs can cause sweating. Intakes of aspirin and acetaminophen, morphine, excess of the thyroid hormones, lack of feminine hormones during menopausal stage, testosterone deficit for men, and low rate of sugar in the blood can incite hyperhidrosis.