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Ailmemts & Remedies

Palmar hyperhidrosis

Description:
Palmer hyperhidrosis is profuse perspiration (excessive sweating) of the palms.It is one form of focal hyperhidrosis, meaning profuse perspiration affecting one area of the body. Sweaty palms may be accompanied by profuse perspiration of the feet, forehead, ckeeks, armpits (axillae) or be part of general hyperhidrosis (profuse perspiration throughout the body). Hyperhidrosis refers to profuse perspiration beyond the body’s thermoregulatory (temperature control) needs.

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Palmer  hyperhidrosis is a common condition in which the eccrine (sweat) glands of the palms and soles secrete inappropriately large quantities of sweat. The condition may become socially and professionally debilitating. The condition usually is idiopathic  and  it begins in childhood and frequently runs in families.

Symptoms:
The intensity of symptoms may vary among sufferers and trigger factors should be carefully noted. Common symptoms  are :

*Perspiration of the hands can vary from mild clamminess to severe perspiration resulting in dripping sweat.
*Temperature differences of palmar surface compared to surface temperature of other parts of the body may be noted.
*Sloughing (peeling) of skin may be noted in profuse perspiration.
*Episodes of profuse perspiration may be followed by periods of extreme dryness on the palmar surface.
*Hyperhidrosis often starts in puberty, and family history is often reported.

The secondary effects of palmar hyperhidrosis can result in both psychosocial effects as well as difficulty in undertaking certain tasks or handling equipment. Sufferers of palmar hyperhidrosis are often reluctant to partake in socially expected actions like shaking hands or touching loved ones. The embarrassment of dealing with this condition can affect the level of interactivity in both social and work situations. Difficulties with holding objects, gripping equipment or soiling electronic devices like keyboards may affect functioning at work. Daily activities such as writing with a pen or counting cash notes is often difficult.

Causes:
Hyperhidrosis is either primary focal or secondary generalized.

1. Primary Palmar  Hyperhidrosis

Focal palmar hyperhidrosis is usually localized and is referred to as primary (essential, idiopathic), meaning no obvious cause, except strong family predisposition can be found (4,5), and affected persons are otherwise healthy . Sweating on other locations as feet, armpits and face may appear. Primary palmar hyperhidrosis is caused by overactivity of the sympathetic nervous system, primarily triggered by emotional causes including anxiety, nervousness, anger and fear .

There may be a significant reduction in perspiration during sleep or sedation.

2. Secondary Palmar Hyperhidrosis

In secondary palmar hyperhidrosis hands sweat due to an obvious underlying disorder like:

*Infections including local infections, tuberculosis and tinea ugunium.
*Neurological disorders like peripheral autonomic neuropathy
*Frostbite
*Arteriovenous Fistulas
*Acromegaly
*Acrodynia
*Complex Regional Pain Syndromes
*Pachyonychia Congenita
*Primary Hypertrophic osteoarthropathy
*Dyskeratosis Congenita
*Blue rubber-bleb nevus
*Glomus tumor

*Secondary palmar hyperhidrosis as part of generalized hyperhidrosis due to  several  hormonal causes (diabetes, hyperthyroidism, thyrotoxicosis, menstruation, menopause), metabolic disorders, malignant disease (lymphoma, pheochromocitoma), autoimmune disorders (rheumatoid arthritis, systemic lupus erythrematosus), drugs like hypertensive drugs and certain classes of antidepressants (list of medications causing hyperhidrosis), chronic use of alcohol, Parkinson’s disease, neurological disorders (toxic neuropathy), homocystinuria, plasma cell disorders. Detailed list of conditions causing generalyzed hyperhidrosis.

How Sweat Glands Work:
In eccrine glands, the major substance enabling impulse conduction is acetylcholine, and in apocrine glands, they are catecholamines.

Body temperature is controlled by the thermoregulatory center in the hypothalamus and this is influenced not only by  by core body temperature but also by hormones, pyrogens, exercise and emotions.

Diagnosis:
The first step in diagnosing  the  Palmar  hyperhidrosis is to differentiate between generalized and focal hyperhidrosis.

A thorough case taking and medical history is usually sufficient to diagnose palmar hyperhidrosis and any trigger factors (scheduled drugs, narcotics, chronic alcoholism).

Diagnostic criteria for primary focal (including palmar) hyperhidrosis  are:

*Bilateral and relatively symmetric sweating
*Frequency of at least 1 episode per week
*Impairment of daily activities
*Age at onset before 25 years
*Family history
*Cessation of sweating during sleep

Tests may include:
*Hematological studies may be necessary to identify thyroid disorders (thyroid function test for T3 and T4 as well as thyroid antibodies) and diabetes (fasting blood glucose or a glucose tolerance test).

*X-rays and MRI scans will assist for diagnosing tuberculosis, pneumonia and tumors.

*Superficial electroconductivity can be monitored as any hyperhidrosis reduces skin electrical resistance.

*Thermoregulatory sweat test uses moisture-sensitive indicator powder to monitor moisture. Changes in the color of the powder at room temperature will highlight areas of increased perspiration.

Treatment:
Conservative management should be coupled with prescribed treatment by the Doctor to reduce the symptoms.

*Counseling may be effective in managing primary palmar hyperhidrosis in cases of mental-emotional etiology.

*Trigger foods and aggravating factors should be noted if possible and relevant dietary changes should be implemented.

*Effective prevention of secondary palmar hyperhidrosis is difficult with conservative management and drug therapy or surgery may be required.

*Excessive physical activity and extremes of heat may be two trigger factors that should be avoided as far as possible.

*In cases of diabetes, a glucose controlled diet with low glycemic index may improve glucose tolerance which could assist with palmar hyperhidrosis.

*Abstinence from alcohol and narcotics is advisable if it is the causative factor for sweaty palms.

*Stimulants such as caffeine and nicotine may aggravate palmar hypehidrosis and should relevant dietary and lifestyle changes should be implemented.

*Anti-perspirant compounds like aluminum chloride can be applied on the palms to reduce moisture or palmar surfaces. Recent research on an aluminum sesquichlorohydrate foam has shown that it is effective in reducing sweat in palmar hyperhidrosis

Treatment remains a challenge: options include topical and systemic agents, iontophoresis, and botulinum toxin type A injections, with surgical sympathectomy as a last resort. None of the treatments is without limitations or associated complications. Topical aluminum chloride hexahydrate therapy and iontophoresis are simple, safe, and inexpensive therapies; however, continuous application is required because results are often short-lived, and they may be insufficient. Systemic agents such as anticholinergic drugs are tolerated poorly at the dosages required for efficacy and usually are not an option because of their associated toxicity. While botulinum toxin can be used in treatment-resistant cases, numerous painful injections are required, and effects are limited to a few months.

Standard therapeutic protocol may differ among cases of palmar hyperhidrosis depending on medical history and underlying pathology.

*Anticholinergic drugs have a direct effect on the sympathetic nervous system although there are numerous side effects.

*Treatment should be directed at contributing factors.

*Ionophoresis involves the use of electrotherapeutic measures to reduce the activity of sweat glands.

*Botulinum injections at the affected area may be useful for its anticholinergic effects.

*Surgery should be considered if drug therapy proves ineffective. Endoscopic transthoracic sympathectomy involves resection of the sympathetic nerve supply to the affected area. This prevents nerve stimulation of the sweat gland of the palms. However surgery has a host of complications including exacerbating the problem or increasing generalized hyperhidrosis.

Surgical sympathectomy should be reserved for the most severe cases and should be performed only after all other treatments have failed. Although the safety and reliability of treatments for palmoplantar hyperhidrosis have improved dramatically, side effects and compensatory sweating are still common, potentially severe problems.

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Disclaimer: This information is not meant to be a substitute for professional medical advise or help. It is always best to consult with a Physician about serious health concerns. This information is in no way intended to diagnose or prescribe remedies.This is purely for educational purpose.

Resources:
http://www.aafp.org/afp/2004/0301/p1117.html

Causes and Treatment of Palmar Hyperhidrosis – Sweaty Palms/Hands

Categories
Ailmemts & Remedies

Dystonia

Definition:
Dystonia is the term used to describe a condition that causes involuntary sustained muscle contractions that lead to abnormal movements and postures.

It is a neurological disorder but does not lead to problems with other functions of the brain such as intellect.It is a neurological movement disorder in which sustained muscle contractions cause twisting and repetitive movements or abnormal postures. The disorder may be inherited or caused by other factors such as birth-related or other physical trauma, infection, poisoning (eg. lead poisoning) or reaction to drugs.

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Types of Dystonia:

* Generalized
* Segmental
* Intermediate

The Focal Dystonias:

These are the most common dystonias and tend to be classified as follows:

* Cervical dystonia (spasmodic torticollis). This affects the muscles of the neck, causing the head to rotate to one side, to pull down towards the chest, or back, or a combination of these postures.

* Blepharospasm. This affects the muscles around the eyes. The sufferer experiences rapid blinking of the eyes or even their forced closure causing effective blindness.

* Oculogyric crisis. An extreme and sustained (usually) upward deviation of the eyes often with convergence causing diplopia. It is frequently associated with backwards and lateral flexion of the neck and either widely opened mouth or jaw clenching. Frequently a result of antiemetics such as the neuroleptics (e.g. prochlorperazine) or metoclopramide.

* Oromandibular dystonia. This affects the muscles of the jaw and tongue, causing distortions of the mouth and tongue.

* Spasmodic dysphonia/Laryngeal dystonia. This affects the muscles of the larynx, causing the voice to sound broken or reducing it to a whisper.

* Oromandibular dystonia: Dystonia affecting the muscles of the jaw, tongue and mouth

* Laryngeal dystonia: Dystonia affecting the speech muscles

* Writer’s cramp: Dystonia affecting the ability to write and sometimes other hand-based tasks

There are other types of dystonia that affect more than one area, including generalised dystonia that affects most of the body, frequently involving the legs and back (trunk).

Focal hand dystonia (also known as musician’s or writer’s cramp). This affects a single muscle or small group of muscles in the hand. It interferes with activities such as writing or playing a musical instrument by causing involuntary muscular contractions. The condition is “task-specific,” meaning that it is generally only apparent during certain activities. Focal hand dystonia is neurological in origin, and is not due to fatigue.

The combination of blepharospasmodic contractions and oromandibular dystonia is called cranial dystonia or Meige’s syndrome.

Segmental Dystonias:

Segmental dystonias affect two adjoining parts of the body:

* Hemidystonia. This affects an arm and a leg on one side of the body.

* Multifocal dystonia. This affects many different parts of the body.

* Generalized dystonia. This affects most of the body, frequently involving the legs and back.

Causes:
The cause(s) of dystonia are not yet known or understood; however, they are categorized as follows on a theoretical basis:

Primary dystonia is suspected to be caused by a pathology of the central nervous system, likely originating in those parts of the brain concerned with motor function, such as the basal ganglia, and the GABA (gamma-aminobutyric acid) producing Purkinje neurons. The precise cause of primary dystonia is unknown. In many cases it may involve some genetic predisposition towards the disorder combined with environmental conditions.

Secondary dystonia refers to dystonia brought on by some identified cause, usually involving brain damage, or by some unidentified cause such as chemical imbalance. Some cases of (particularly focal) dystonia are brought on after trauma, are induced by certain drugs (tardive dystonia), or may be the result of diseases of the nervous system such as Wilson’s disease.

It has been suggested that an imbalance of neurotransmitters (such as dopamine) leads to this defect in control of muscles and movement.

In some cases, damage to the basal ganglia can lead to dystonia.

These are referred to as secondary dystonia and can be due to a variety of causes such as stroke or tumour of the basal ganglia, or the result of certain drugs (especially dopamine blocking drugs used to treat psychiatric disorders) and so on.

In the majority of cases, no underlying cause is found apart from possible genetic factors, and these are called primary or idiopathic dystonia.

Who is affected by dystonia?
Dystonia affects men and women of all ages.

If it develops in childhood, it tends to become generalised.

Dystonia which has its onset in adult life usually remains focal and is more common in those over 40 years of age.

The condition can be difficult to diagnose and many patients remain untreated because their symptoms are unrecognised.

Is it inherited?

Dystonia that develops in childhood is often inherited through one or more affected genes.

Most primary segmental or generalised dystonia is inherited in a dominant manner, which means that if a parent has this type of dystonia, there is a 50% chance of passing the dystonia gene to each child.

However, not everyone who inherits the gene develops dystonia, a phenomenon known as reduced penetrance.

Dystonia which develops in adults may also be inherited.

This is often difficult to identify, since other family members may have only a mild form of the illness. They may have never sought medical advice or perhaps their dystonia was misdiagnosed.

Symptoms:
Symptoms vary according to the kind of dystonia involved. In most cases, dystonia tends to lead to abnormal posturing, particularly on movement. Many sufferers have continuous pain, cramping and relentless muscle spasms due to involuntary muscle movements.

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Early symptoms may include loss of precision muscle coordination (sometimes first manifested in declining penmanship, frequent small injuries to the hands, dropped items and a noticeable increase in dropped or chipped dishes), cramping pain with sustained use and trembling. Significant muscle pain and cramping may result from very minor exertions like holding a book and turning pages. It may become difficult to find a comfortable position for arms and legs with even the minor exertions associated with holding arms crossed causing significant pain similar to restless leg syndrome. Affected persons may notice trembling in the diaphragm while breathing, or the need to place hands in pockets, under legs while sitting or under pillows while sleeping to keep them still and to reduce pain. Trembling in the jaw may be felt and heard while lying down, and the constant movement to avoid pain may result in TMJ-like symptoms and the grinding and wearing down of teeth. The voice may crack frequently or become harsh, triggering frequent throat clearing. Swallowing can become difficult and accompanied by painful cramping.

Electrical sensors (EMG) inserted into affected muscle groups, while painful, can provide a definitive diagnosis by showing pulsating nerve signals being transmitted to the muscles even when they are at rest. The brain appears to signal portions of fibers within the affected muscle groups at a firing speed of about 10 Hz causing them to pulsate, tremble and contort. When called upon to perform an intentional activity, the muscles fatigue very quickly and some portions of the muscle groups do not respond (causing weakness) while other portions over-respond or become rigid (causing micro-tears under load). The symptoms worsen significantly with use, especially in the case of focal dystonia, and a “mirror effect” is often observed in other body parts: use of the right hand may cause pain and cramping in that hand as well as in the other hand and legs that were not being used. Stress, anxiety, lack of sleep, sustained use and cold temperatures can worsen symptoms.

Direct symptoms may be accompanied by secondary effects of the continuous muscle and brain activity, including disturbed sleep patterns, exhaustion, mood swings, mental stress, difficulty concentrating, blurred vision, digestive problems and short temper. People with dystonia may also become depressed and find great difficulty adapting their activities and livelihood to a progressing disability. Side effects from treatment and medications can also present challenges in normal activities.

In some cases, symptoms may progress and then plateau for years, or stop progressing entirely. The progression may be delayed by treatment or adaptive lifestyle changes, while forced continued use may make symptoms progress more rapidly. In others, the symptoms may progress to total disability, making some of the more risky forms of treatment worth considering.

An accurate diagnosis may be difficult because of the way the disorder manifests itself. Sufferers may be diagnosed as having similar and perhaps related disorders including Parkinson’s disease, essential tremor (ET), carpal tunnel syndrome, TMJ, Tourette’s syndrome, or other neuromuscular movement disorders.

Treatment:
Treatment has been limited to minimizing the symptoms of the disorder as there is yet no successful treatment for its cause. Reducing the types of movements that trigger or worsen dystonic symptoms provides some relief, as does reducing stress, getting plenty of rest, moderate exercise, and relaxation techniques. Various treatments focus on sedating brain functions or blocking nerve communications with the muscles via drugs, neuro-suppression or denervation. All current treatments have negative side effects and risks.

Physicians may prescribe a series of different medications on a trial basis in an effort to find a combination that is effective for a specific patient. Not all patients will respond well to the same medications. Drugs that have had positive results in some patients include anti-Parkinsons agents (Trihexyphenidyl), muscle relaxers (Valium), keppra, and beta-blockers including “off-label” uses for some blood pressure medications.

Drugs such as anticholinergics, which act as inhibitors of the neurotransmitter acetylcholine, may provide some relief. Clonazepam, an anti-seizure medicine, is also sometimes prescribed. However, for most sufferers their effects are limited and side effects like mental confusion, sedation, mood swings and short-term memory loss occur.

Botulinum toxin injections into affected muscles have proved quite successful in providing some relief for around 3-6 months, depending on the kind of dystonia. Botox injections have the advantage of ready availability (the same form is used for cosmetic surgery) and the effects are not permanent. There is a risk of temporary paralysis of the muscles being injected or the leaking of the toxin into adjacent muscle groups causing weakness or paralysis in them. The injections have to be repeated as the effects wear off and around 15% of recipients will develop immunity to the toxin. There is a Type A and Type B toxin approved for treatment of dystonia; often those that develop resistance to Type A may be able to use Type B.

Surgery, such as the denervation of selected muscles, may also provide some relief; however, the destruction of nerves in the limbs or brain is not reversible and should only be considered in the most extreme cases. Recently, the procedure of deep brain stimulation (DBS) has proved successful in a number of cases of severe generalised dystonia.

One type of dystonia, dopa-responsive dystonia, can be completely treated with regular doses of L-dopa in a form such as Sinemet (carbidopa/levodopa). Although this doesn’t remove the condition, it does alleviate the symptoms most of the time.

A baclofen pump has been used to treat patients of all ages exhibiting muscle spasticity along with dystonia. The pump delivers baclofen via a catheter to the thecal space surrounding the spinal cord. The pump itself is placed in the abdomen. It can be refilled periodically by access through the skin.

Physical therapy can sometimes help with focal dystonia. A structured set of exercises is tailored to help the affected area.

Prognosis:Unfortunately, there is not yet a cure for most forms of dystonia. Nowadays, however, many dystonic conditions can be very successfully managed. In many cases, if dystonia develops in childhood, particularly if it starts in the legs, it may spread to other parts of the body and can become generalised.

However, when it develops in adults, it usually confines itself to one part of the body (focal dystonia). The progress of dystonia is unpredictable.
The severity of symptoms can vary from day to day, and while there often is an element of overall progression, it is difficult to estimate how long this will last.Typically, a focal dystonia will progress very gradually over a five-year period, and then progress no further. Symptoms in all dystonic conditions can vary.
For some people, their dystonia may sometimes improve or disappear altogether for no apparent reason.


Living with Dystonia:

As with the onset of any long-term medical condition, some people who develop dystonia may go through an initial period of depression, embarrassment and outrage – or relief that there is an explanation for their symptoms.

Most people do manage to develop effective strategies for coping with the challenges that their condition brings.

Successful treatments to lessen their symptoms, effective pain control and the acquisition of sensory ‘tricks’ all help to ameliorate social situations.

Development:In the last few years, awareness of dystonia has increased and the outlook for people with dystonia is improving.

The Dystonia Society, a registered charity, works hard to speed up the processes of both research and recognition.

Disclaimer: This information is not meant to be a substitute for professional medical advise or help. It is always best to consult with a Physician about serious health concerns. This information is in no way intended to diagnose or prescribe remedies.This is purely for educational purpose

Resources:
http://en.wikipedia.org/wiki/Dystonia
http://news.bbc.co.uk/2/hi/health/medical_notes/6237440.stm

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