Search PubMed⌕ Search

Biomedical subjects

R L Kaufman

Publications and source records attributed to R L Kaufman.

At least 19 recordsLinked to original sources
PubMed1999

Manipulative management of post-Colles' fracture weakness and diminished active range of motion.

OBJECTIVE: To discuss the management of a patient with wrist weakness and a diminution in active range of motion resulting from Colles' fracture. CLINICAL FEATURES: A 58-year-old woman complained of persistent loss of grip strength and mobility in her right wrist. These complaints were from Colles' fracture occurring 19 months before initiation of care. Dynamometer and goniometric testing revealed significant loss of grip strength and range of motion compared with the uninvolved, nondominant wrist. INTERVENTION AND OUTCOME: Specific joint manipulation for improvement in mobility and grip strength of the wrist was performed. The patient's right wrist was evaluated for grip strength and active range of motion over a 3-week period, providing a baseline of function before treatment. After 4 visits of baseline measurements, a series of 4 treatments and 4 reevaluations was performed. The patient exhibited a significant increase in grip strength and active range of motion. CONCLUSION: Appropriate intervention of chiropractic manipulation and examination procedures culminated in a successful resolution of this case. When such cases are recognized, appropriate management may occur conservatively with judicious application of joint manipulation and reevaluation procedures.

Colles' Fracture↗
PubMed1999

How low can it go? Declining black-white segregation in a multiethnic context.

We extend research on whites' neighborhood contact with blacks, population composition, and prospects for desegregation by developing a new measure of the floor of racial residential segregation under conditions of low black-white contact. The measure incorporates the way in which multiethnic contexts further constrain levels of black-white segregation. The results show that black-white desegregation is likely when the black population is small, but is unlikely otherwise. Yet, when multiple ethnic groups are sufficiently large, a moderate level of black-white segregation is necessary for whites to maintain low neighborhood contact with blacks, even when the proportion of African Americans is small.

Black or African American↗
PubMed1997

Manipulative reduction and management of anterior sternoclavicular joint dislocation.

OBJECTIVE: To discuss the management of a patient suffering from an anterior sternoclavicular joint dislocation secondary to blunt trauma from a motor vehicle accident. CLINICAL FEATURES: A 75-yr-old woman suffered from difficulty in swallowing and chest pain after release from a foreign medical facility. Anteroposterior chest X-rays demonstrated an anterior and superior displacement of the right sternoclavicular joint. INTERVENTION AND OUTCOME: Specific joint manipulation for reduction of the dislocation was performed. Immobilization of the joint after reduction was accomplished by a reverse figure-8 bandage. Follow-up radiographic evaluation demonstrated reduction of the dislocation. Resolution of difficulty in swallowing and pain was dramatic and instantaneous after reduction. CONCLUSION: Appropriate intervention of chiropractic examination procedures and imaging techniques culminated in successful resolution of this case. When such cases are recognized, appropriate management may occur conservatively with judicious application of joint manipulation and adjunctive procedures.

Aged↗
PubMed1993

Empiric parenteral antibiotic treatment of patients with fibromyalgia and fatigue and a positive serologic result for Lyme disease. A cost-effectiveness analysis.

PURPOSE: To examine the cost-effectiveness of empirical, parenteral antibiotic treatment of patients with chronic fatigue and myalgia and a positive serologic result for Lyme disease who lack classic manifestations. DATA SOURCES: Peer-reviewed journals, opinion of experts in the field, and published epidemiologic reports. STUDY SELECTION: Consensus by authors on articles that indicated methods for patient selection; on criteria used for diagnosis; on immunologic methods used for classifying patients; on the dose and duration of therapy; and on criteria by which responses to therapy were ascertained. DATA EXTRACTION: In a cost-effectiveness model, the costs and benefits of empirical parenteral therapy for patients seropositive for Lyme disease were compared with a strategy in which only patients having classical symptoms of Lyme disease were treated. DATA SYNTHESIS: In areas endemic for Lyme disease, the incidence of false-positive serologic results in patients with nonspecific myalgia or fatigue exceeds by four to one the incidence of true-positive results in patients with nonclassical infections. Treatment of the former group of patients costs $86,221 for each true-positive patient treated. The empirical strategy causes 29 cases of drug toxicity for every case in the more conservative strategy. If patients were willing to pay $3485 to eliminate anxiety about not treating possible true Lyme disease, the empirical strategy would break even. CONCLUSION: For most patients with a positive Lyme antibody titer whose only symptoms are nonspecific myalgia or fatigue the risks and costs of empirical parenteral antibiotic therapy exceed the benefits. Only when the value of patient anxiety about leaving a positive test untreated exceeds the cost of such therapy is the empirical treatment cost-effective.

Anti-Bacterial Agents↗
PubMed1993

Outcome of treatment of 686 gunshot wounds of the trunk at Los Angeles County-USC Medical Center: implications for the community.

The Los Angeles County-University of Southern California (LAC-USC) Medical Center, a level I trauma center, has experienced a rapidly increasing incidence of gunshot wounds (GSWs). We sought to enumerate the annual monetary costs and medical consequences of thoracoabdominal gunshot wounds in the epicenter of urban violence. A consecutive series of patients admitted from September 1, 1989 to August 31, 1990 was studied. Their records were coded by trauma nurse reviewers and held in the Trauma Emergency Medical Information System (TEMIS) and Automated Medical Record Abstracting and Reporting System (AMRARS). Diagnoses, procedures, and complications were verified by chart review. An estimate of disability 3 months after discharge was made from the record and reported on a functional activity scale. The total number of patients with GSWs admitted to all of the level I Los Angeles County trauma centers was 2771 during the study period. The total number of patients with major gunshot injuries admitted to LAC-USC Medical Center was 1007. Thoracoabdominal wounds without any head wound component occurred in 686 gunshot patients. Three quarters of the injured patients with truncal gunshot injuries were Hispanic. Total length of stay at the LAC-USC Medical Center for those with truncal wounds was 4666 hospital bed days including 432 ICU bed days, representing a minimum estimated total medical cost of $5,441,334. Annual medical cost of all admissions including rehabilitation, however, could be as great as $12 million for the Medical Center and $53 million for the County of Los Angeles. Thirty percent of patients had MediCal insurance. Payment could not be recovered from another 57% of patients.(ABSTRACT TRUNCATED AT 250 WORDS)

Abdominal Injuries↗
PubMed1993

Quality assurance study of cardiac isoenzyme utilization in a large teaching hospital.

Guidelines for diagnosis of acute myocardial infarction recommend that, if acute myocardial infarction is suspected, creatine kinase (CK)-MB levels should be measured on admission and again at 12 and 24 hours. In light of these recommendations, we conducted a quality assurance study to determine whether utilization of CK-MB tests in our institution, a large, university-affiliated teaching hospital, was consistent with current guidelines. Also, several years ago, we had established a policy of cancelling lactate dehydrogenase isoenzyme orders if the request originated from an unauthorized location, unless it was approved by a laboratory staff. Since this policy led to a greater than 90% reduction in the requests for lactate dehydrogenase isoenzyme testing, an additional objective was to reevaluate this policy. Of 774 patients evaluated with CK-MB tests, 294 (38%) received only a single test. Of these single tests, 277 had normal results (CK-MB < 5%). For the remaining 17 patients, the single CK-MB test findings were abnormal (CK-MB > 5%) without follow-up testing. Only two CK-MB tests were ordered for 187 patients (24%). Three or more CK-MB tests were obtained in 293 cases (38%). When two or more CK-MB tests were ordered, the time interval between the first and second tests was inappropriately short in 70% and long in 24%. The recommended timing for the third CK-MB was followed in only 4% of cases. Review of 32 cancellations of lactate dehydrogenase isoenzyme tests disclosed that lactate dehydrogenase isoenzyme tests were requested when unnecessary in 26 cases. Despite published guidelines for use of CK-MB for acute myocardial infarction, physicians at our institution continue to use these tests inappropriately by ordering only single CK-MB tests or by ordering repetitions of CK-MB tests at excessively short or long intervals.

Clinical Enzyme Tests↗
PubMed1991

Factors related to failure of structural bone grafts in acetabular reconstruction of total hip arthroplasty.

Structural bone grafts in acetabular reconstruction of total hip arthroplasty have come into more common usage with the increasing number of revision arthroplasties. The authors present the outcome of 40 bone grafts with follow-up periods of 2-8 years. Primary and revision arthroplasties with both cemented and noncemented fixation are included. Factors that had a statistically significant relationship to failure of the bone graft included fit and fixation of bone graft to host, fit and fixation of prosthesis to host, union of bone graft to host, and the presence or absence of the confluence of the anterior and posterior columns of the acetabulum. Other findings of interest were a higher failure rate of multiple grafts as compared to a single graft and freeze-dried femoral heads. Migration of the socket of more than 3 mm is statistically related to failure of the socket.

Acetabulum↗
PubMed1990

Cardiac compression in rheumatoid pericarditis.

Rheumatoid pericarditis occurs in approximately one third of rheumatoid arthritis (RA) patients. However, clinically apparent rheumatoid pericarditis is infrequent. The authors found clinical pericarditis in 12 of 960 patients admitted for RA, 5 of whom had manifestations of cardiac compression. These 5 had longer duration of RA, worse functional class, and more extraarticular features than the patients without cardiac compression. Presenting features of cardiac compression included dyspnea, edema, chest pain, and pulsus paradoxus. Treatment of patients with cardiac compression due to rheumatoid pericarditis may include a trial of systemically administered corticosteroids, but this should not delay surgical intervention for impending tamponade. Pericardiocentesis should only be performed as an emergency, life-saving procedure. It may be followed by intrapericardiac injection of corticosteroids, but this does not prevent recurrence. Longer-lasting benefit is obtained by surgical decompression. Two-year mortality in patients with cardiac compression was 100%. The literature on the subject is reviewed.

Adrenal Cortex Hormones↗
PubMed1990

Candida septic arthritis in rheumatoid arthritis.

We describe a patient with a 10-year history of rheumatoid arthritis who developed septic arthritis of the knee secondary to Candida albicans. Joint sterilization was obtained by debridement and 865 mg. of IV amphotericin B. We review 23 other cases of candidal arthritis in adults with specific reference to disease recognition and treatment.

Aged↗
PubMed1989

Search for nicotinic acetylcholine receptors on human leukocytes: absence of alpha-bungarotoxin binding in studies of healthy individuals and myasthenia gravis patients.

To investigate whether nicotinic acetylcholine receptors might be present on blood mononuclear cells we studied the binding [125I]alpha-bungarotoxin to mononuclear cells from three normal controls and seven myasthenia gravis patients. The medulloblastoma cell line, TE671, which expresses a functional nicotinic acetylcholine receptor having pharmacological properties similar to that of skeletal muscle receptor, was used as a positive control for alpha-bungarotoxin binding. None of the mononuclear cell samples studied exhibited specific binding of alpha-bungarotoxin.

Bungarotoxins↗
PubMed1989

Pseudothrombophlebitis in neuropathic arthropathy.

The pseudothrombophlebitis syndrome is a complication of large, ruptured, or dissecting popliteal cysts. We report a patient with neuropathic arthropathy of the knee and the pseudothrombophlebitis syndrome secondary to a dissecting popliteal cyst. This represents another form of arthritis associated with this syndrome.

Arthrography↗
PubMed1989

Acute myelocytic leukemia after the use of cyclophosphamide in the treatment of polyarteritis nodosa.

The use of cyclophosphamide has been associated with the delayed appearance of neoplasms. We report a woman who developed myelodysplastic syndrome leading to acute myelocytic leukemia, 4 years after receiving 13 g of cyclophosphamide over 6 months for severe polyarteritis nodosa. Cytogenetic abnormalities typical of damage induced by alkylating agents, including partial deletions of chromosomes 5 and 7, were present. This case represents the first reported occurrence of cyclophosphamide associated malignancy in polyarteritis nodosa.

Adult↗