PubMed Health⌕ Search

Biomedical subjects

S V Vasudevan

Publications and source records attributed to S V Vasudevan.

17 recordsLinked to original sources

Pain centers--organization and outcome.

Pain treatment centers have evolved at a rapid rate, but they differ in their complexity and services provided. Patients, as well as primary care physicians, have difficulty in identifying the appropriate center for a specific problem. Guidelines for pain centers have recently been proposed by the International Association for the Study of Pain, along with an attempt at their accreditation. Outcome studies from pain centers have proliferated, with a wide range of treatment programs being reported. Comprehensive multidisciplinary pain centers using the rehabilitation medicine approach are effective in decreasing disability and increasing the productivity of patients with chronic, disabling pain.

Acute Disease↗

Clinical perspectives on the relationship between pain and disability.

Physicians involved in the evaluation and management of those with pain as a primary symptom are frequently requested to provide information about the "disability status" of that individual. Such requests arise from third-party payors such as insurance companies, state workers compensation departments, and other systems of disability determination. To effectively manage the individual with pain, the physician needs to have an understanding of the concepts of disability and those systems involved in this process.

Chronic Disease↗

Arc-aggregation: a new method of range of motion analysis in hemophilia.

Arc-aggregation is a new graphic method of analysis of progressive loss of range of motion that can be applied to any diarthrodial joint undergoing a specific degenerative process. It is based on the premise that loss of motion (LOM) for a specific condition occurs in a predictable way or pattern. Using this method to analyze a population of 48 hemophilic patients with various stages of joint involvement, we studied 95 knees, 93 ankles, and 83 elbows for a total of 271 joints. We found a predictable pattern of progressive loss of range of motion for each joint. To detect the early onset of joint involvement, the first LOM is important. The early loss with the knee was in flexion, which gravitated toward fusion at 40 degrees. For the elbow, the early LOM was extension with fixation, occurring at 90 degrees of flexion, the preferred position for fusion. For the ankle, the early LOM was dorsiflexion with final ankylosis in slight equinus.

Adolescent↗

Enuresis: comparison of two treatments.

Despite long-standing claims that the conditioning method of treating enuresis is based on the classic conditioning paradigm, research explicitly investigating this claim has been limited. This study compares two conditioning methods of treating enuresis, both using the bell and pad, one in a classic conditioning paradigm and the other in an operant paradigm with an unconditioned stimulus delay of 3 minutes together with an operant reinforcement for wet or dry behavior. Sixty children were randomly assigned to one of the 2 treatment groups or a control group. Using Dunn's procedure, a planned comparison showed the control group and delay group did not differ significantly, but both differed significantly from the classic conditioning group (p less than 0.05). Fifty percent of the classic conditioning group reached criterion of 14 consecutive dry nights while 17% of the delay group reached criterion. None of the control group reached criterion. Results suggest that the operant procedures are a much weaker form of treatment than the bell and pad. This study indicates that enuresis in children can be successfully managed with a short duration outpatient program.

Behavior Therapy↗

Chronic pain therapy with transcutaneous electrical nerve stimulation: predictive value of questionnaires.

A retrospective study of 200 chronic pain patients was conducted to determine whether preexisting physical or social factors influence treatment success with transcutaneous electrical nerve stimulation (TENS). Responses to 30 questions from a preadmission questionnaire were analyzed against short-term treatment success. Patients with pain of more than a year's duration, who had undergone multiple surgical operations for pain control, who used tranquilizers, or who were not working because of pain, demonstrated a generally lower rate of treatment success, although the differences were not statistically significant. Treatment success rate was significantly higher for retired patients than for those with blue-collar jobs or those who were unemployed. There was no association between treatment success rate and site, frequency, character or severity of pain, age, sex, use of narcotic analgesics, or the presence of financial compensation or litigation. The value of TENS for chronic pain remains largely empirical.

Adolescent↗

Upper extremity edema control: rationale of the techniques.

Edema of the upper extremity is a condition frequently encountered by those interested in hand rehabilitation. It frequently accompanies other problems associated with functional restrictions of the upper extremities. Its control and prevention are a part of the total rehabilitation of these extremities. Persistent edema becomes painful, disfiguring, and disabling. Fibrosis develops in the edematous tissue leading to contractures. The susceptibility for infection increases and the functional ability of the limb decreases. Treatment is based upon an understanding of the pathophysiology of edema. Edema occurs when there is an imbalance of effective pressures across the capillary membrane or when there is an obstruction to venous and lymphatic flow. The conservative treatment program consists of elevation, massage, use of external compression devices, exercises, and instructions to avoid contributing factors. This paper will discuss the physiologic rationale for the effectiveness of these treatment methods.

Arm↗