INVESTIGATIONS OF HEADACHES: VISUAL EVOKED POTENTIALS

July 25th, 2011 by admin


The visual evoked response is a more recent technique that is also based on recording electrical activity from the brain. It is still only a research tool as far as migraine is concerned. When an object is seen, an electrical discharge passes along the optic pathway to cause a specific but tiny response in the brain. When the same impulse is presented repeatedly the responses can be added up by an EEG machine to give a much bigger response, shown on a screen as a wave-form. Using this technique, the time taken for the impulse to travel along the op tic pathway scan is measured, by taking the time from seeing the object (the stimulus) to the peak of the wave. Diseases such as inflammation or pressure on the optic nerve will slow the response, whilst damage to the brain can alter the shape of the wave-form.Because it has been suggested that repeated attacks of severe migraine could possibly damage the brain, VERs have been done in some cases for the purposes of research. Patients with migraine had VERs measured from each side of the head. Migraine patients have a delay in the time interval from the stimulus to the wave, indicating that the nerve impulse travels more slowly through the brain than in non-migrainous subjects. The wave responses, rather than being smaller, were in fact larger, and this did not seem to make sense nor be easily explicable. Those whose headaches were on the left side of the head had a much bigger wave-form than those whose headaches were on both sides or on the right side, another observation for which there is as yet no certain explanation.The prolonged latency can be explained more easily: this is not due to stroke-like damage since in strokes the latencies are normal (only the height of the waves is less). In certain situations changing the neurotransmitters in the brain can alter the latency, so the most likely explanation is that migraine patients have some difference with respect to neurotransmitters. Which neurotransmitter is involved is not yet known, but it is unlikely to be due to noradrenalin or adrenalin since stress can actually speed up the response.These differences between migraine subjects and non-sufferers are still circumstantial and to a large extent contradictory, suggesting again that migraine is possibly not a single disorder.
*39/152/5*

NATURAL MEN’S HEALTH: DIET FOR HEALTH AND VITALITY – A NOTE ON TEA

July 16th, 2011 by admin


Black tea such as English Breakfast, orange pekoe and Earl Grey all contain some caffeine (half as much as coffee). It has been found that they do contain some anti-oxidants. Green tea, which has not been fermented like black tea, contains double the amount of anti-oxidants and some caffeine.Herbal tea doesn’t contain any caffeine and has numerous active ingredients that assist digestion, the nerves, the lungs and the cleansing of the blood. Water can cause bloating so herbal tea is ideal to drink any time of the day as the pure herb softens the water and has healing properties for the body.Herbal teas can play an important role in preventative health. As a herbalist and naturopath, I have created a range of organic loose-leaf herbal teas. These special teas have a variety of benefits including assisting digestion, helping to soothe the nervous system, and assisting in carrying nutrients around the body and removing wastes from the blood stream.*107\258\8*

HIV: OPTIONS FOR MEDICAL CARE-GLOSSARY OF HOSPITAL PEOPLE AND PRACTICES: THE HOSPITAL BILL

July 7th, 2011 by admin


The anticipated charge for the average private or semiprivate room in a private hospital is $350 to $600 a day (in 1990 dollars), but it can be over $1,000 in such large metropolitan areas as New York City. Intensive care units are usually $1,000 to $2,000 a day. Additional charges include medications, laboratory tests, physicians’ fees, and specialized procedures like bronchoscopy or operations. The hospital bill is likely to be long and full of medical jargon with lists of numerical codes for every pill and procedure. Physicians’ fees are billed separately from the hospital bill. Insurance companies determine the customary and reasonable charges for both the hospital and the physician and, on that basis, make their payments. Questions about hospital charges should be directed to the hospital billing office or to the patient representative. Questions about a physician’s charges should be directed to the physician. If finances are going to be a problem, the person should inquire about charges for various tests and their alternatives before the tests are done.*169\191\2*

DIAGNOSIS FOR SECONDARY PERITONITIS

June 26th, 2011 by admin


Patients with suspected intra-abdominal infection should have a peripheral leukocyte count, urinalysis, and blood cultures performed. The, leukocyte count is elevated in most cases.Radiologic evaluation in cases of suspected secondary peritonitis is invaluable. An upright chest radiograph or left lateral decubitus radiograph often reveals free air in patients with perforated gastric or duodenal ulcers. Although ultrasonography is very useful in evaluating the gallbladder, biliary tract, and pelvic structures, computed tomography (CT) with intravenous, oral, and rectal contrast is the most definitive diagnostic test overall in detecting abdominal sources of infection.Patients with ascites and suspected intra-abdominal infection should have a paracentesis performed. When a source of intra-abdominal infection is not clear, analysis of ascitic fluid may help differentiate secondary peritonitis from SBP. Fluid cultures in secondary peritonitis are usually polymicrobial, and the PMN count is 250 cells/mm3 or greater, although it may be markedly elevated (>10,000 cells/mm3). Other parameters may also be helpful. Unlike in SBP, the ascitic fluid analysis in secondary peritonitis usually meets at least two of the following criteria: (1) a total protein level of more than 1 gm/dL, (2) a glucose concentration of less than 50 mg/dL, or (3) a lactate dehydrogenase (LDH) level of more than 225 U/mL.*92/348/5*

PHASES OF THE MENOPAUSE

June 19th, 2011 by admin


There are three distinct phases of the menopause:1.   Pre-menopause – periods are still regular but the first symptoms, such as hot flushes and mood changes, may appear.2.   Peri-menopause – the function of the ovaries declines, the periods can become irregular and symptoms may be more severe.3.   Post-menopause – this is from the last period onwards. Of course, we can only know it is the last period after twelve months with no periods. Some women can go six months without a period and then another one arrives. Once a year has passed with no periods, it can be said that you are post-menopausal.Your hormones affect you mentally and physically. They have an impact on breast tissue, body hair and the physical shape which distinguishes you as a woman. They are also closely connected with your emotional and psychological well-being as any woman who has suffered from pre-menstrual syndrome will testify. As the hormones change during the monthly cycle so does the way you think, in terms of your confidence and self-esteem: the way you view yourself and the world.Nature has designed your hormones to work in harmony, each one dependent on the other and operating as a whole system. When your hormones are in proper balance, you feel emotionally and physically well. Exactly the same principle holds true for the years leading up to the menopause. The level of your hormones is changing, but when you are in good health they are changing in exactly the way they should. The menopause is not a deficiency disease.
*2/101/5*

IS PRESCHOOL TOO EARLY TO CONTACT A SPECIALIST REGARDING A CHILD’S HYPERACTIVITY OR OTHER BEHAVIOR PROBLEMS?

June 8th, 2011 by admin


No, but you should realize that at this age few children are perfect angels, and that misbehavior and hyperactivity are relatively common and usually no cause for alarm. However, while most children are not brought for diagnosis until they are of school age, earlier diagnosis may offer help that might prevent later problems from developing.A doctor should be consulted if the child’s behavior is causing serious problems at home, in school, or in other social situations. If you feel your baby does have severe difficulties in calming down, or if your toddler seems especially hyperactive, inattentive, or very difficult to soothe, you should consult with your pediatrician, and perhaps ask for a referral to a child psychiatrist. Similarly if your child has not begun babbling during the first year, or is not speaking words during the second year, or if your child seems to not relate to you, it would be advisable to seek a consultation.I will illustrate the picture of ADHD in a preschooler, by describing Peter, who already exhibited severe symptoms of ADHD by the age of four.
Peter, a four-year-old preschoolerPeter was first brought to see me when he was four years old, a few months after beginning pre-kindergarten. His teachers had told his parents that he never communicated with them or other children, did not play with his peers, and never joined in group activities. He either kept to himself in a corner with books, or he careened around the room in an unrelated, hyperactive state. He could only tolerate an hour or two a day before becoming disruptive and demanding to go home. At times he became babyish, for example, crawling around the classroom and mouthing toys.His parents said these were also long-standing problems at home. While Peter had a large vocabulary and fund of knowledge, he rarely spoke to them directly about his needs or feelings and they felt he did not listen to them. He seemed to tune them out when they tried to speak to him, particularly when they asked him to do something. He spoke incessantly, but rarely about any real events or interactions. His speech was irrelevant and filled with fantasy. He reacted with increased hyperactivity and uncontrollable behavior whenever a change of situation was required, such as when leaving the house or having to end an activity or go to bed.Peter was his parents’ first child, a second having arrived when he was three. His mother’s pregnancy with Peter was normal but the labor lasted three days, and monitoring of the baby’s heartbeat in the birth canal showed there was some fetal distress during the end stages. However, he seemed healthy at birth and went home with his mother on schedule. She remembered that he was colicky and very difficult to soothe, often requiring prolonged carrying. Now, at age four, he still became uncontrollably distressed when upset or over-stimulated, had tantrums and banged his head on the wall. He still seemed unresponsive to his parents’ attempts to soothe him or to control or punish him.A further troubling symptom was that he had never achieved full bowel training. He would retain his feces, and then have repeated accidents in his clothing (encopresis). Sometimes he would actually disrobe and defecate on the floor, but he very rarely defecated in the toilet. He preferred to wear diapers and, though not wearing them to preschool, was continuing to wear them at night. His pediatrician found no physical abnormality to account for this encopresis and, in fact, found him in excellent health except for his recurrent ear infections. These infections may well have interfered with his hearing at various times during his infancy. His speech development had been delayed, and he did not start speaking in full sentences until after three years of age.When I first met Peter, he came bursting into my office enthusiastically, his mother at his side. I invited her to stay in the room, and he proceeded to explore hectically, talking continually with an immature articulation at times difficult to understand. Sometimes he spoke about the toys and asked me about broken things and missing pieces, but often his streams of speech seemed irrelevant to the situation at hand, and were just another medium of motor discharge. Suddenly, after about ten minutes, his activity stopped, and he went and stood by his mother and stared at me, as though he had only just realized I was a stranger and he needed to take stock of the situation.I easily engaged him again, and found I had to keep my own energy level very high to keep up with him, following him around the room, talking, answering his questions. He was not rough with the toys, however, and worked with great perseverance to carefully free a stuck car from a garage elevator. When I suggested that his mother could wait in the waiting room while he and I continued, he said that she would have nothing to do there. When she went anyway, saying she had lots to do, he seemed not to respond, and went on playing.In her absence, Peter’s activity level increased even further. He went to the cold woodstove and started to rub his hands in the ashes. He wanted to open my drawers, in addition to other activities that I had to prohibit. He clearly was now reacting to his mother’s absence with some anxiety. He couldn’t express it or acknowledge it; rather, he just became more disorganized, distracted, and hyperactive. I felt that he wasn’t listening or couldn’t really focus on what I said. When I asked him to draw, however, it became clear he had heard me because he immediately said he was no good at drawing. He began to gather paper and tape it together into a long strip because he wanted me to draw a six-foot-high picture of a volcano. It was to be Mount Vesuvius, and as he became more excited and paced around, he spoke rapidly, loudly, and in great detail about the volcano, its massive eruption, the burying of Pompeii, and his voluminous instructions for my drawing.*19\173\2*

PREVENTION OF INFECTIVE ENDOCARDITIS: PROCEDURES ASSOCIATED WITH RISK OF BACTEREMIA

May 28th, 2011 by admin


After assessing a patient’s intrinsic risk for developing IE, the next step in considering the role of antibiotic prophylaxis is to determine whether the planned procedure carries a significant risk of bacteremia with organisms known to cause IE. Although there are dozens of papers in the literature that assess post-procedural bacteremia, the interpretation of their results is difficult because of marked differences in several parameters, including the following:- Time at which cultures were obtained (from 1 to 20 minutes post procedure)- Isolates considered significant positives (e.g., inclusion or exclusion of coagulase-negative staphylococci or anaerobic bacteria)- Definitions of significant bacteremia (by both type of bacteria, quantity recovered, and time from procedure)- Differences in blood culture methods- Inability to truly standardize all procedures being performed (e.g., chewing)Despite these limitations to the available data, it is possible to stratify procedures according to a relatively high or low likelihood of inducing bacteremia with organisms known to cause IE. The highest risk procedures include the following:- Most dental procedures, generally including any invasive procedure or procedures involving gingival manipulation- Tonsillectomy- Esophageal stricture dilation- Variceal sclerotherapy- Many genitourinary tract procedures (including transrectal biopsy of the prostate)- Most open surgical operations involving respiratory, intestinal, or genitourinary tract mucosaA group of lower risk procedures includes the following1-2’10-12:- Noninvasive dental procedures, including orthodontic band adjustments and fluoride treatments- Esophagogastroduodenoscopy with or without biopsy- Colonoscopy with or without biopsy- Uterine dilatation and curettage- Spontaneous vaginal delivery or uncomplicated caesarian section- Flexible bronchoscopy- Transesophageal echocardiography*48/348/5*

ALTERNATIVE APPROACHES TO EPILEPTIC SEIZURE CONTROL: RELAXATION

May 19th, 2011 by admin


I f you are one of the many people who tend to get more seizures when they are under stress, learning to relax may prove to be a very effective way of reducing the frequency of your seizures. Almost any relaxation technique can be helpful. It is something you can teach yourself at home, using either a special relaxation tape, or following the instructions in the method given below. If you prefer, you may be able to join a relaxation class where you can learn in a group. Once you have learnt a relaxation technique, you can try using it whenever you feel that a seizure seems imminent, or you are in a seizure-prone situation.Learning to relaxWhen you are learning physical relaxation, choose a time to practise when you are not feeling too tense; at first you will find it a difficult technique to master unless you are feeling fairly relaxed to start with. Find a quiet room where you will not be interrupted and are away from distractions.You can either sit or lie down, whichever is the most comfortable for you. Make sure that your arms and legs are not crossed and that you are sitting or lying square. Close your eyes. It often helps to have some relaxing music on as a background.1 To begin with, just concentrate on your breathing. Breathe through your nose with a slow even rhythm for a few minutes. Try to breathe from your diaphragm, not from your chest. Now take a deep breath in and hold it for two seconds. As you breathe out, say ‘Relax’ out loud. Continue these slow deep breaths five or six times, each time saying the word ‘Relax’ as you breathe out.In time you will be able to think the word ‘Relax’ in your mind. Now you are going to use this same rhythmof breathing as you learn to relax each of your body parts in turn.First, clench both your fists tightly together for about ten seconds. As you do so breathe in, hold your breath and feel the tension in your fists and fingers. Then relax your fists and breathe out, thinking the word ‘Relax’. Feel the difference between tension and relaxation. Do this twice.Now bring your forearms towards your shoulders, tensing them up as you do so and breathing in. Hold the position for about ten seconds. Then breathe out, saying ‘Relax’ to yourself. Feel the difference between tension and relaxation. Repeat.Now your shoulders. Shrug both your shoulders towards your ears. Breathe in and feel the tension as you do so. Hold the position for ten seconds. Breathe out, saying ‘Relax’ and feeling the difference between tension and relaxation. Repeat.Bend your right ear down towards your shoulder, feeling the tension along the side of your neck. (Try not to lift your shoulder up towards your ear.) Again, breathe in as you do so, hold the position for ten seconds, then breathe out and think ‘Relax’, bringing your head back up. Repeat this exercise and then do the same thing twice with your left ear.Now bring your chin down to your chest, feeling the tension at the back of your neck and breathing in as you do so. Hold it there for ten seconds, then breathe out saying ‘Relax’, and bring your head upright. Repeat.Now try to tense and relax the muscles of your face. Screw up your eyes and purse your lips together. Again, breathe in as you do so, hold the position for ten seconds, then relax and breathe out. Feel the difference between tension and relaxation. Repeat.
At this point go over your body in your mind’s eye and check that your arms and hands are relaxed, that your neck and shoulders are relaxed, and that your neck and face are relaxed. You may need to perform this check after each exercise, because tension creeps back in easily while you are concentrating on something else.Relaxing your back muscles is the next step. Breathe in and as you do so hollow your back, pushing your spine forwards so that you can feel the tension along your back. Hold it for ten seconds, then breathe out and relax. Feel the difference between tension and relaxation. Repeat.Next pull your stomach muscles in, breathing in as you do, so that there is tension all the way across your stomach like an elastic band tightening around your waist. Then breathe out and relax. Repeat.
Now tense your buttocks by clenching them together, breathing in as you do so. Keep them clenched for ten seconds. Now breathe out and relax, feeling the difference between tension and relaxation. Repeat.To relax your feet, if you are sitting, raise your legs and point your toes. If you are lying down, just point your toes. Breathe in as you do so and feel the tension along the tops and backs of your shins and calves. Breathe out and relax. Repeat.Finally, tense and relax your thighs and your calves. Push your legs down into the ground as hard as you can, feeling the tension all the way along your legs. Hold the position for ten seconds. Breathe out and relax, feeling the difference between tension and relaxation. Repeat.You have now relaxed each of the major muscle groups in your body. For the final few minutes of the exercise, sit or lie and concentrate on the music, pushing any worrying thoughts to the back of your mind. Check your body again in your mind’s eye to make sure there are no bits of tension remaining. Keep your breathing slow and regular.When you start to do this exercise it will take a while to get your body fully relaxed, but the more you practise, the easier it becomes. The next stage is to build the habit of relaxation into your everyday life. Every now and then during the day, stop what you are doing and just relax for a minute or two. You can do this quite quickly and unobtrusively.
Consolidating physical relaxation techniquesNow that you know the difference between tension and relaxation, and can relax your muscles at will, it is a good idea to check each part of your body occasionally during the day to see whether your muscles are tensed or relaxed. If you find some areas of tension, take a few slow deep breaths, then breathe out, relaxing those muscles as you do so.When you have become used to physical relaxation and find it easy, you can use it when you find you are in seizure-prone situations or at seizure onset.To begin with, at the end of each relaxation session it may help to imagine how you would use these new skills in seizure-prone situations. When you are fully relaxed:Imagine a situation in which you are likely to have a seizure. Try to visualize it as clearly as you can – what you might be doing, feeling and thinking.Now say to yourself, ‘Relax’, and physically relax your body at the same time as imagining relaxing in the setting you have visualized.Now imagine you can continue with whatever you were doing before you felt a seizure might occur. Feel pleased with yourself for having been able to avoid a seizure by relaxing.
When you are using this imagination technique, it is often easier to start by imagining a situation in which you know you can sometimes stop a seizure arising, and gradually work up to imagining situations in which you feel you would have least control over the onset of the seizure. Make a list of seizure-prone situations ranking them from ‘least likely’ to ‘most likely’ to provoke a seizure. Practise the imagination exercise with each item on your list, starting with the ‘least likely’. When you are able to feel quite relaxed as you imagine it, move on to the next item on your list, gradually working your way up until you are able to relax even while you are imagining your most seizure-prone situation.You are now ready to start using these skills in seizure-prone situations in your everyday life. Even when you feel you have mastered the relaxation technique, it is a good idea to keep in practice by giving yourself a full relaxation session every now and then.
Relaxing the mindTrue relaxation should involve the mind as well as the body. Practising the exercises described above will eventually help you to relax at will. But you will find the benefits increase considerably if you can also learn to calm your mind at the same time. A simple meditation or yoga practice can help you to do this.*39\193\2*

BE THE PERSON YOU WERE MEANT TO BE: ANTIDOTES TO SELF-INDUCED TOXIC BEHAVIOR – CENTERING – FINDING ONE’S CENTER IS AN EVOLVING PROCESS

May 7th, 2011 by admin


Finding one’s center is an evolving process rather than something one suddenly discovers. The willingness to do nothing and cut off external stimuli sets the stage for greater contact with one’s self. When a person is intensely in touch with himself, he automatically cuts off the processes that would normally distract him from his state of being at the moment. When he is intensely involved with his experiencing self, other activities may cease or even be impossible. When, for example, a person is talking, he may be so overwhelmed by the welling up of his emotions that he is unable to continue and must stop trying to talk until the intensity of his feelings diminishes.Sometimes even a few hours of emptiness can enable us to get more in touch with our center. It is a kind of psychic sleep in which a maximum amount of our energy is at rest and available, and we are aware of this. We may see the absurdity or futility of much of what we do and actually laugh at our self’s breaking through our unawareness.*139\350\8*

SKIN DISORDERS IN ADULTS: HIVES

April 21st, 2011 by admin


It is uncommon to find any precipitating cause for hives, which produces large, swollen, itchy red lumps. These appear suddenly and disappear just as quickly. Although most people associate this condition with food allergy, it is generally unrelated to diet, but can occasionally occur after eating seafood, strawberries, foods which contain sorbic acid as a preservative and foods which contain aspirin such as dried fruit, fruit-flavoured milk, yoghurt and ice-cream, apples, apricots, oranges, pineapple, tomatoes and tomato products, carrots, eggplant, mushrooms, pumpkin and spinach. Aspirin itself can cause this condition, so is best avoided by those who have a tendency towards hives.Although hives can be quite unpleasant to look at, it rarely produces serious problems and is self-limiting. It responds well to antihistamines if they are used in sufficient doses. Most antihistamines cause drowsiness, which improves over time, but does, however, make driving hazardous. Newer, non-sedating antihistamines such as Hismanal and Teldane are useful alternatives.Cooling creams containing menthol and tepid baths containing Pinetarsal may alleviate the itch, although their effects are only temporary. Antihistamine and anesthetic creams should be avoided, as they can cause severe allergic reactions.
*52/150/5*