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Showing posts from May, 2021

MYASTHENIA GRAVIS

 INTRODUCTION: The first reported case of MG is likely to be that of the Native American Chief Opechancanough, who died in 1664. It was described by historical chroniclers from Virginia as “the excessive fatigue he encountered wrecked his constitution; his flesh became macerated; the sinews lost their tone and elasticity, and his eyelids were so heavy that he could not see unless they were lifted up by his attendants… he was unable to walk, but his spirit rising above the ruins of his body directed from the litter on which he was carried by his Indians”. In 1672, the English physician Willis first described a patient with “fatigable weakness” involving ocular and bulbar muscles described by his peers as “spurious palsy.” In 1877, Wilks (Guy’s Hospital, London) described the case of a young girl after pathological examination as “bulbar paralysis, fatal, no disease found". In 1879, Wilhelm Erb (Heidelberg, Germany) described three cases of myasthenia gravis in the first paper deali

PFT (PULMONARY FUNCTION TESTS) - TESTS OF VENTILATORY FUNCTION

INTRODUCTION:  It is unusual for a specific lung function test to diagnose a disease. At Jbest, a series of tests may place a lung disorder into one of several categories and when other features such as history, physical examination, radiology and pathology are added to the equation, a possible diagnosis is considered. Most requests for tests will include £ provisional diagnosis. When the most appropriate tests have been Selected, further hurdles must be overcome before any reliable results can be obtained. The patient must be able to co-operate fully Ind there is no substitute for an experienced, sympathetic but firm technician to ensure that maximum performance has been achieved. I rushed estimate of total lung capacity (TLC) in a claustrophobic |nd panicking, body-box-bound patient is no use to anyone. The Technician must have the right to question the advisability of a test |n a particular day as the patient may have become too ill to cooperate or be recovering from fractured ribs

SPLINITS

  SPLINTS Technically the term splint refers to a temporary device that is part of a  treatment program.   Classification • Static • Dynamic.   Static Splints Static splints have no moving parts, prevent motion and are used to rest or  rigidly support the splinted part.   Uses: These are used to stretch joint contractures progressively or align  specified joints after a surgical procedure for optimal healing. A static splint  should never include joints other than those being treated and should be  discontinued the moment its usefulness is over.   Disadvantages: Immobilization causes atrophy and stiffness.   Dynamic Splints Dynamic splints are moving splints; their parts permit, control, or strengthen  movement. The movement in a dynamic splint may be intrinsically powered  by another body part or by electrical stimulation of the patient’s muscles.  Extrinsic power may be provided by elastic bands or pulleys.   Uses: Dynamic splints provide prehension

SPINAL ORTHOSIS

  SPINAL ORTHOSIS The common thoracic or lumbar orthosis consists of a plastic or aluminium frame, anterior abdominal support, two posterior uprights, and pelvic and thoracic bands, which are fitted to the spine.   Mechanism The three point force control system of Jordan is used in these orthoses by working on the principle of pelvic positioning, which acts as a base of support for spinal column alignment. Relief of longitudinal forces is then provided by anterior abdominal compression. Counter pressure is provided by a rigid posterior positioning system. This arrangement provides increased comfort as the forces are distributed over a wider area than with the three-point pressure system. In the three-point pressure system in the anterior spinal hyperextension (ASH) brace, two anterior pressure points are balanced by a third opposing posterior pressure point. This control system is effective in preventing flexion deformities of the spine from becoming wor