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Biomedical subjects

L Neumann

Publications and source records attributed to L Neumann.

At least 19 recordsLinked to original sources
PubMed2006

[Ultrasound guided implantation of chest port systems via the lateral subclavian vein].

PURPOSE: Retrospective analysis of the success and complication rates of chest port implantation via the lateral subclavian vein. MATERIALS AND METHODS: Between January 2003 and June 2004, the lateral subclavian vein in 271 patients (186 women, 85 men, mean age 53.2 years) was punctured guided by ultrasound. This access was used to insert a port system, and the catheter tip was placed at the cavoatrial junction. The port reservoir was implanted in a subcutaneous infraclavicular pocket and fixed to the fascia of the pectoralis muscle. Indications for port implantation were chemotherapy (n = 239), total parenteral nutrition (n = 2) and intravenous medication (n = 30). The patient follow-up was mainly performed either by the oncology division of the department of gynecology or by the department of internal medicine. RESULTS: A chest port catheter system was successfully implanted in all patients. The catheter remained in place for a mean duration of 269.4 days (SD 192.3 days). No complications occurred during implantation. In the post-interventional period, 6 catheter dysfunctions were found (thrombotic 0.09 per 1000 catheter days; mechanic 0.05 per 1000 catheter days). While one local infection occurred in the early post-interventional period, 3 local and 15 systemic infections were independent of the port catheter placement (0.39 per 1000 catheter days). The rate of port catheter ex-plantation due to dysfunction or infection was 0.07 per 1000 catheter days. CONCLUSION: Ultrasound-guided puncture of the lateral subclavian vein is a safe procedure for the insertion of central venous port catheter systems and had a very low complication rate in our study. For further evaluation of our port placement technique, prospective studies compared to placement through the internal jugular vein are necessary.

Catheterization, Central Venous↗
PubMed2005

[Magnetic resonance tomogography after cryotherapy of long bones in an animal model].

PURPOSE: To describe the MR findings following cryoablation of long bones. MATERIALS AND METHOD: Cryoablation was performed in femoral and tibial bones of 24 sheep under general anesthesia. MRI of the treated and untreated contralateral bones was performed immediately thereafter and at 2, 4 and 6 months after the cryosurgical procedure. RESULTS: On the MRI performed immediately after cryotherapy, the lesions showed low signal intensities relative to the normal bone marrow on unenhanced T1- and T2-weighted images. At 2, 4 and 6 months after cryoablation, the lesions showed high signal intensities on STIR images, low signal intensities on T1-weighted and heterogeneous enhancement on contrast-enhanced T1-weighted MR images. The femoral lesions decreased in size from 31 +/- 3 mm immediately after the cryotherapy to 13 +/- 4 mm 6 month later and the tibial lesions from 29 +/- 7 mm to 19 +/- 4 mm. CONCLUSION: MRI shows bone marrow lesions immediately after cryotherapy and can easily monitor healing lesions. MR imaging is suitable for following cryotherapy.

Animals↗
PubMed2004

Glenothoracic fusion. An adjunct to radical scapulectomy.

We describe a surgical procedure used to achieve glenothoracic fusion after one-stage radical, near total scapulectomy for primary or secondary malignant lesions in six patients. The aim was complete excision of the lesion and preservation of the glenoid to provide a fulcrum for movement of the arm. Post-operative assessment involved determination of the range of movement and the application of the Musculoskeletal Tumour Society score and the Constant score to evaluate function. The results showed that a functional range of movement was attainable despite such radical surgery, although there was a considerable reduction in power and ability to lift.

Adult↗
PubMed2002

Assessment of quality of life of parents of children with juvenile chronic arthritis.

The aim of the study was to assess the quality of life (QOL) and the psychological status of parents of children with juvenile chronic arthritis (JCA). The QOL, anxiety and depression of the parents of 28 children with JCA were evaluated and compared to those of the parents of 28 healthy children. Mothers of JCA children and mothers of healthy children reported similar QOL. The reported anxiety and depression levels were similar for mothers and fathers in both groups. The parents of children with pauciarticular-type JCA reported lower QOL and higher levels of anxiety and depression than the parents of children with other types, namely polyarticular and systemic JCA. These findings may be explained by the fact that the pauciarticular patients had shorter disease duration and were less frequently seen in the outpatient clinic. The QOL of mothers of children with JCA was found to be slightly impaired in the group of children with pauciarticular JCA. Future larger studies are needed to confirm these results, as the number of subjects in the three groups was rather low.

Adult↗
PubMed2002

Antiphospholipid antibodies in a heterogeneous group of patients: experience from a central laboratory.

The aim of this study was to evaluate the prevalence and the performance of lupus anticoagulant (LA) tests in a heterogeneous group of patients and to investigate the sociodemographic characteristics, patterns of referral, clinical manifestations and outcomes among these patients. The medical charts of 725 patients referred to a central coagulation laboratory during a 12-month period for LA were reviewed. The data collected included demographic characteristics, the specialty of the referring physicians, the clinical indications for ordering the test, and the influence of the test results on the diagnosis and the treatment approach. Special attention was paid to identifying clinical manifestations known to be associated with antiphospholipid antibodies (APLA). A positive test was defined by abnormal results obtained by at least two techniques from the reagents used and confirmed by a platelet-neutralising procedure. Chi(2) and t-tests were used for independent samples. Fifty-six patients (7.7%) were found to have LA. Rheumatologists and gynaecologists emerged as the major contributors to this group. The presence of LA was significantly associated only with systemic lupus erythematosus and thrombocytopenia. The number of patients treated with antiaggregants or anticoagulants tripled following the test results. A positive dRVVT test strongly correlated with elevated anticardiolipin antibodies. We concluded that LA tests are ordered by a variety of physicians but yield better results when ordered by rheumatologists and gynaecologists. In this heterogeneous cohort, it was most useful in the investigation of thrombocytopenia and suggests a pathogenetic role in this condition. The dRVVT test correlates most closely with elevated anticardiolipin antibodies.

Adult↗
PubMed2001

Non-operative treatment of multidirectional shoulder instability.

At an average follow-up of 3.7 years we assessed the results of non-operative treatment of 84 symptomatic shoulders in 59 patients with a diagnosis of multidirectional shoulder instability. Sixty-two shoulders had received no previous surgical treatment (group A) while 22 had failed to respond to surgical treatment before the rehabilitation programme (group B). Subjectively 11 of the non-operated shoulders (group A) were cured and 27 improved, 23 of the shoulders remained the same and one was worse at follow-up. According to the age and gender adjusted Constant score, 38 of the non-operated shoulders had either no disability or only mild disability, nine had moderate disability, while the remaining 15 had severe or total disability. These figures were far worse in group B. In group A only four shoulders required operation, while in group B seven required operation following rehabilitation. Patients who had had previous shoulder surgery, those with a work related injury and those with psychological problems were less likely to benefit from the rehabilitation programme.

Adolescent↗
PubMed2001

Balneotherapy for fibromyalgia at the Dead Sea.

The aim of this study was to evaluate the effectiveness of balneotherapy on patients with fibromyalgia (FM) at the Dead Sea. Forty-eight patients with FM were randomly assigned to a treatment group receiving sulfur baths and a control group. All participants stayed for 10 days at a Dead Sea spa. Physical functioning, FM-related symptoms, and tenderness measurements (point count and dolorimetry) were assessed at four time points: prior to arrival at the Dead Sea, after 10 days of treatment, and 1 and 3 months after leaving the spa. Physical functioning and tenderness moderately improved in both groups. With the exception of tenderness threshold, the improvement was especially notable in the treatment group and it persisted even after 3 months. Relief in the severity of FM-related symptoms (pain, fatigue, stiffness, and anxiety) and reduced frequency of symptoms (headache, sleep problems, and subjective joint swelling) were reported in both groups but lasted longer in the treatment group. In conclusion, treatment of FM at the Dead Sea is effective and safe and may become an additional therapeutic modality in FM. Future studies should address the outcome and possible mechanisms of this treatment in FM patients.

Activities of Daily Living↗
PubMed2001

The effect of balneotherapy at the Dead Sea on the quality of life of patients with fibromyalgia syndrome.

Fibromyalgia (FS) is an idiopathic chronic pain syndrome defined by widespread non-articular musculoskeletal pain and generalised tender points. As there is no effective treatment, patients with this condition have impaired quality of life (QoL). The aim of this study was to assess the possible effect of balneotherapy at the Dead Sea area on the QoL of patients with FS. Forty-eight subjects participated in the study; half of them received balneotherapy, and half did not. Their QoL (using SF-36), psychological well-being and FS-related symptoms were assessed prior to arrival at the spa hotel in the Dead Sea area, at the end of the 10-day stay, and 1 and 3 months later. A significant improvement was reported on most subscales of the SF-36 and on most symptoms. The improvement in physical aspects of QoL lasted usually 3 months, but on psychological measures the improvement was shorter. Subjects in the balneotherapy group reported higher and longer-lasting improvement than subjects in the control group. In conclusion, staying at the Dead Sea spa, in addition to balneotherapy, can transiently improve the QoL of patients with FS. Other studies with longer follow-up are needed to support our findings.

Balneology↗
PubMed2001

Outcomes of a brief alcohol abuse prevention program for Israeli high school students.

PURPOSE: To implement a brief intervention aimed at reducing abuse of alcohol among adolescents, and to assess its effectiveness. METHODS: One thousand 10th-grade students from seven high schools, chosen by random from the roster of all schools in southern Israel, were assigned to intervention and control groups. The intervention, which was based on Botvin's social skills theory, was conducted over 3 days and included dissemination of information, workshops, lectures by guest experts, and activity areas. It was administered by the staff of the high schools and the Psychological Counseling Service in Israel. A self-administered questionnaire was answered anonymously by students in the 10th grade (pretest) and again in the 11th and 12th grades (posttests). It included questions on sociodemographic data, alcohol-related habits, smoking habits, use of illicit drugs, knowledge, and attitudes. Data were collected between 1994 and 1997 with a 76% follow-up rate at 2 years. RESULTS: At baseline there was no statistical difference in alcohol consumption between the intervention and control groups. At 1- and 2-year follow-up the rates of alcohol consumption did not change in the intervention group (p > .05) but rose significantly in the control group (p < .001). In multiple regression analysis the variables male gender, positive attitudes, cigarette smoking, availability of illegal drugs, and intervention group were significant predictors of alcohol consumption. CONCLUSIONS: The results of this study show the effectiveness of this intervention program, based on reduced alcohol consumption in the intervention group at 1- and 2-year follow-up, compared with the control group. Compared with other programs, the present intervention is brief, intensive, and relatively easy to implement.

Adolescent↗
PubMed2001

Simultaneous recording of late and ultra-late pain evoked potentials in fibromyalgia.

OBJECTIVE: To characterize laser evoked potentials (LEP), pain psychophysics and local tissue response in fibromyalgia patients. METHODS: LEP were recorded in 14 women with fibromyalgia in response to bilateral stimulation of tender and control points in upper limbs by 4 blocks of 20 stimuli at each point. Subsequently, heat pain thresholds were measured and supra-threshold magnitude estimations of heat pain stimuli were obtained on a visual analogue scale. Finally, the extent of the local tissue response induced by the previous stimuli was evaluated. RESULTS: Laser stimuli elicited two long latency waves: A late wave (mean latency 368.9+/-66.9 ms) in most patients (13/14) from stimuli at all points, and an ultra-late wave (mean latency 917.3+/-91.8 ms) in 78.5% of the patients at the control points and in 71.4% at the tender points. Amplitude of ultra-late waves was higher at the tender points (20.67+/-11.1 microV) than at the control points (10.47+/-4.1 microV) (P=0.016). Pain thresholds were lower in the tender (41.2+/-2.7 degrees C) than the control points (43.9+/-3.2 degrees C) (P=0.008). Local tissue response was significantly more intense at tender than control points (P=0.004). CONCLUSIONS: Ultra-late laser evoked potentials can be recorded simultaneously with late potentials. Our findings are compatible with presence of peripheral C-fiber sensitization, mostly at tender points, probably combined with generalized central sensitization of pain pathways in fibromyalgia.

Arm↗
PubMed2001

Classic, atypically severe and neonatal Marfan syndrome: twelve mutations and genotype-phenotype correlations in FBN1 exons 24-40.

Mutations in the gene for fibrillin-1 (FBN1) cause Marfan syndrome, an autosomal dominant disorder of connective tissue with prominent manifestations in the skeletal, ocular, and cardiovascular system. There is a remarkable degree of clinical variability both within and between families with Marfan syndrome as well as in individuals with related disorders of connective tissue caused by FBN1 mutations and collectively termed type-1 fibrillinopathies. The so-called neonatal region in FBN1 exons 24-32 comprises one of the few generally accepted genotype-phenotype correlations described to date. In this work, we report 12 FBN1 mutations identified by temperature-gradient gel electrophoresis screening of exons 24-40 in 127 individuals with Marfan syndrome or related disorders. The data reported here, together with other published reports, document a significant clustering of mutations in exons 24-32. Although all reported mutations associated with neonatal Marfan syndrome and the majority of point mutations associated with atypically severe presentations have been found in exons 24-32, mutations associated with classic Marfan syndrome occur in this region as well. It is not possible to predict whether a given mutation in exons 24-32 will be associated with classic, atypically severe, or neonatal Marfan syndrome.

Adolescent↗
PubMed2001

The prevalence of musculoskeletal pain and fibromyalgia in patients hospitalized on internal medicine wards.

OBJECTIVES: To estimate the prevalence of nonarticular pain complaints (chronic widespread pain, chronic localized pain, transient pain) and fibromyalgia in hospitalized patients and to study utilization patterns of health services associated with pain related problems. METHODS: Five hundred twenty-two patients hospitalized on internal medicine wards were enrolled. Data were collected with a questionnaire covering demographic background, information on pain and other symptoms, utilization of health services, and drug consumption. All subjects were classified into four pain groups: those with no pain, transient pain, chronic regional pain, and chronic widespread pain. Tenderness was assessed by thumb palpation, and patients were diagnosed as having fibromyalgia if they met the 1990 American College of Rheumatology criteria. RESULTS: Sixty-two percent of the patients reported pain; 36% reported chronic regional pain, 21% reported chronic widespread pain, and 5% reported transient pain. Fifteen percent of all patients had fibromyalgia, most of whom (91%) were women. The prevalence of chronic widespread pain and of fibromyalgia in women increased with age. Sleep problems, headache, and fatigue were highly prevalent, especially among those with chronic widespread pain. Patients with chronic widespread pain reported more visits to family physicians (6.2 visits per year) and more frequent use of drugs. They also were more frequently referred to rheumatologists, and they reported more hospitalizations. CONCLUSIONS: Pain syndromes and related symptoms are prevalent among hospitalized patients on the medicine wards. The internist taking care of these patients should be aware of the presence of these syndromes and realize that some of the reported symptoms are partly related to these (undiagnosed) pain syndromes rather than to the cause of hospitalization.

Adult↗
PubMed2001

Abnormal sympathovagal balance in men with fibromyalgia.

OBJECTIVE: It is possible that there are differences in clinical manifestations between men and women with fibromyalgia syndrome (FM), especially in autonomic dysfunction; we assessed the interaction between the sympathetic and parasympathetic systems in postural change in men with FM using power spectral analysis (PSA) of heart rate variability (HRV), and investigated the pathogenesis of the orthostatic intolerance. METHODS: We studied 19 men with FM and 19 controls matched for age and sex. A high resolution electrocardiogram was obtained in supine and standing postures during complete rest. Spectral analysis of R-R intervals was done by the fast Fourier transform algorithm. RESULTS: PSA of HRV revealed that men with FM at rest are characterized by sympathetic hyperactivity and concomitantly reduced parasympathetic activity. During postural changes, male patients demonstrated an abnormal sympathovagal response. These results provide the physiological basis for the orthostatic intolerance in men with FM. CONCLUSION: This report of autonomic dysfunction in men with FM revealed an abnormal autonomic response to orthostatic stress. This abnormality may have implications regarding the symptoms of FM.

Adult↗
PubMed2001

Prevalence of ischemic heart disease in patients with familial Mediterranean fever.

BACKGROUND: Familial Mediterranean fever is a genetic disorder manifested by recurrent attacks of peritonitis, pleuritis and arthritis, and characterized by clinical, histological and laboratory evidence for localized and systemic inflammation. Colchicine treatment usually prevents the attacks and the associated inflammation. Inflammation may play an important role in the initiation and progression of atherosclerosis and ischemic heart disease. OBJECTIVE: To study the effect of inflammation and its prevention on the occurrence of IHD, using FMF as a model. METHODS AND PATIENTS: We studied the presence of IHD and its risk factors in 290 FMF patients aged 40 years or more, and in two control groups--233 spouses of the FMF patients, and 126 patients with inflammatory diseases obtained from other outpatient clinics, FMF patients were also compared with age and gender-matched individuals from the population reference data of the Israel Ministry of Health. RESULTS: The prevalence of IHD in FMF patients was significantly lower than in the group of controls from other outpatient clinics (15.5% vs. 30.2%, P < 0.05) and comparable with their spouses (11.2%) and with the matched general population in Israel (16%). CONCLUSIONS: These findings suggest that despite the evidence of recurrent inflammation, colchicine-treated FMF patients are not more predisposed to IHD than the normal population.

Adult↗
PubMed2001

Balneotherapy at the Dead Sea area for patients with psoriatic arthritis and concomitant fibromyalgia.

BACKGROUND: Balneotherapy has been successfully used to treat various rheumatic diseases, but has only recently been evaluated for the treatment of fibromyalgia. Since no effective treatment exists for this common rheumatic disease, complementary methods of treatment have been attempted. OBJECTIVES: To assess the effectiveness of balneotherapy at the Dead Sea area in the treatment of patients suffering from both fibromyalgia and psoriatic arthritis. METHODS: Twenty-eight patients with psoriatic arthritis and fibromyalgia were treated with various modalities of balneotherapy at the Dead Sea area. Clinical indices assessed were duration of morning stiffness, number of active joints, a point count of 18 fibrositic tender points, and determination of the threshold of tenderness in nine fibrositic and in four control points using a dolorimeter. RESULTS: The number of active joints was reduced from 18.4 +/- 10.9 to 9 +/- 8.2 (P < 0.001). The number of tender points was reduced from 12.6 +/- 2 to 7.1 +/- 5 in men (P < 0.003) and from 13.1 +/- 2 to 7.5 +/- 3.7 in women (P < 0.001). A significant improvement was found in dolorimetric threshold readings after the treatment period in women (P < 0.001). No correlation was observed between the reduction in the number of active joints and the reduction in the number of tender points in the same patients (r = 0.2). CONCLUSIONS: Balneotherapy at the Dead Sea area appears to produce a statistically significant substantial improvement in the number of active joints and tender points in both male and female patients with fibromyalgia and psoriatic arthritis. Further research is needed to elucidate the distinction between the benefits of staying at the Dead Sea area without balneotherapy and the effects of balneotherapy in the study population.

Adult↗
PubMed2001

Autonomic nervous system derangement in fibromyalgia syndrome and related disorders.

Fibromyalgia syndrome is a chronic, painful musculoskeletal disorder of unknown etiology and/or pathophysiology. During the last decade many studies have suggested autonomic nervous system involvement in this syndrome, although contradictory results have been reported. This review focuses on studies of the autonomic nervous system in fibromyalgia syndrome and related disorders, such as chronic fatigue syndrome and irritable bowel syndrome on the one hand and anxiety disorder on the other, and highlights techniques of dynamic assessment of heart rate variability. It raises the potentially important prognostic implications of protracted autonomic dysfunction in patient populations with fibromyalgia and related disorders, especially for cardiovascular morbidity and mortality.

Adult↗