RESUMO
AIMS: To evaluate the effectiveness of automated symptom and side effect monitoring on quality of life among individuals with symptomatic diabetic peripheral neuropathy. METHODS: We conducted a pragmatic, cluster randomized controlled trial (July 2014 to July 2016) within a large healthcare system. We randomized 1834 primary care physicians and prospectively recruited from their lists 1270 individuals with neuropathy who were newly prescribed medications for their symptoms. Intervention participants received automated telephone-based symptom and side effect monitoring with physician feedback over 6 months. The control group received usual care plus three non-interactive diabetes educational calls. Our primary outcomes were quality of life (EQ-5D) and select symptoms (e.g. pain) measured 4-8 weeks after starting medication and again 8 months after baseline. Process outcomes included receiving a clinically effective dose and communication between individuals with neuropathy and their primary care provider over 12 months. Interviewers collecting outcome data were blinded to intervention assignment. RESULTS: Some 1252 participants completed the baseline measures [mean age (sd): 67 (11.7), 53% female, 57% white, 8% Asian, 13% black, 20% Hispanic]. In total, 1179 participants (93%) completed follow-up (619 control, 560 intervention). Quality of life scores (intervention: 0.658 ± 0.094; control: 0.653 ± 0.092) and symptom severity were similar at baseline. The intervention had no effect on primary [EQ-5D: -0.002 (95% CI -0.01, 0.01), P = 0.623; pain: 0.295 (-0.75, 1.34), P = 0.579; sleep disruption: 0.342 (-0.18, 0.86), P = 0.196; lower extremity functioning: -0.079 (-1.27, 1.11), P = 0.896; depression: -0.462 (-1.24, 0.32); P = 0.247] or process outcomes. CONCLUSIONS: Automated telephone monitoring and feedback alone were not effective at improving quality of life or symptoms for people with symptomatic diabetic peripheral neuropathy. TRIAL REGISTRATION: ClinicalTrials.gov (NCT02056431).
Assuntos
Neuropatias Diabéticas/terapia , Monitorização Fisiológica/métodos , Atenção Primária à Saúde , Qualidade de Vida , Idoso , Análise por Conglomerados , Neuropatias Diabéticas/fisiopatologia , Neuropatias Diabéticas/psicologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Avaliação de Resultados em Cuidados de Saúde , Padrões de Prática MédicaRESUMO
UNLABELLED: Contemporary femur fracture rates were examined in northern California women and compared by race/ethnicity. During 2006-2012, hip fracture rates declined, but diaphyseal fracture rates increased, especially in Asians. Women with diaphyseal fracture were younger and more likely to be bisphosphonate-treated. These disparities in femur fracture should be further examined. INTRODUCTION: The epidemiology of diaphyseal femur fracture differs from proximal femur (hip) fracture, although few studies have examined demographic variations in the current era. This study examines contemporary differences in low-energy femur fracture by race/ethnicity in a large, diverse integrated health-care delivery system. METHODS: The incidence of hip and diaphyseal fracture in northern California women aged ≥50 years old during 2006-2012 was examined. Hip (femoral neck and pertrochanteric) fractures were classified by hospital diagnosis codes, while diaphyseal (subtrochanteric and femoral shaft) fractures were further adjudicated based on radiologic findings. Demographic and clinical data were obtained from health plan databases. Fracture incidence was examined over time and by race/ethnicity. RESULTS: There were 10,648 (97.3 %) hip and 300 (2.7 %) diaphyseal fractures among 10,493 women. The age-adjusted incidence of hip fracture fell from 281 to 240 per 100,000 women and was highest for white women. However, diaphyseal fracture rates increased over time, with a significant upward trend in Asians (9 to 27 per 100,000) who also had the highest rate of diaphyseal fracture. Women with diaphyseal fracture were younger than women with hip fracture, more likely to be of Asian race and to have received bisphosphonate drugs. Women with longer bisphosphonate treatment duration were also more likely to have a diaphyseal fracture, especially younger Asian women. CONCLUSION: During 2006 to 2012, hip fracture rates declined, but diaphyseal fracture rates increased, particularly among Asian women. The association of diaphyseal fracture and bisphosphonate therapy should be further investigated with examination of fracture pattern.
Assuntos
Fraturas do Fêmur/etnologia , Fraturas por Osteoporose/etnologia , Negro ou Afro-Americano/estatística & dados numéricos , Idoso , Idoso de 80 Anos ou mais , Asiático/estatística & dados numéricos , California/epidemiologia , Bases de Dados Factuais , Feminino , Fraturas do Quadril/etnologia , Hispânico ou Latino/estatística & dados numéricos , Humanos , Incidência , Pessoa de Meia-IdadeRESUMO
The pelvic subcutaneous cross-over internal fixator is a minimally invasive technique for the fixation of instable anterior pelvic ring fractures. A USS-II-VAS screw is anchored bilaterally in the supra-acetabular region of the os ileum by a mini-incision approach. An angled fixation rod is inserted subcutaneously and after successful closed reduction attached to the screws forming a locking internal fixation. In a retrospective study of the clinical and radiological outcomes of 19 patients after an average follow-up of 2.54 years, results were excellent and good in 31.6%, moderate in 63.2% and poor in 5.3%. Complications were one wound infection, one loosening of the VAS screw and seven temporary lesions of the lateral femoral cutaneous nerve. The main benefits are a simple surgical technique preventing damage to soft tissue, a low risk of neurovascular lesions and the avoidance of pin infections. Moreover patients with multiple trauma profit from a shorter time of surgery and greater comfort allowing a prone position. The new procedure combines the advantages of internal osteosynthesis and a minimally invasive technique, providing early mobilization under full-weight bearing for instable pelvic fractures.
Assuntos
Fixação Interna de Fraturas/instrumentação , Fixação Interna de Fraturas/métodos , Fraturas Ósseas/cirurgia , Traumatismo Múltiplo/cirurgia , Ossos Pélvicos/lesões , Ossos Pélvicos/cirurgia , Adolescente , Adulto , Idoso , Desenho de Equipamento , Análise de Falha de Equipamento , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Resultado do Tratamento , Adulto JovemRESUMO
The formation of postsynaptic clusters of various ligand-gated ion channels is regulated by receptor activity. Here we describe the developmental- and activity-dependent modification of N-methyl-D-aspartate (NMDA) receptor clustering in spinal cord neurons in vitro detected by immunofluorescence analysis using subunit and splice variant specific antibodies. NMDA receptors form synaptic and extrasynaptic clusters with sequential changes in subunit composition during in vitro development. During the first week of in vitro culture, a NR1 splice variant containing the C2-carboxy terminus and lacking the N1-cassette and the NR2B subunit are the prevailing components of receptor clusters at synaptic and extrasynaptic sites. After 3 weeks in culture (days in vitro [DIV] 22), the numbers of postsynaptic receptor clusters with N1-containing NR1 splice variants and NR2A subunits are upregulated. At DIV22, C2-specific clusters are abundant and are predominantly localized at postsynaptic sites, whereas the total number of C2'-clusters in dendrites is much lower and these clusters are localized mostly extrasynaptically. However, upon chronic inhibition of NMDA receptor activity in DIV8 and DIV22 cultures with MK801, the number of postsynaptic NR1-C2' subunit clusters is strongly upregulated. In contrast, numbers of NR1-C2 clusters are only modestly increased in DIV8 and not changed in DIV22 cultures upon MK801 treatment, suggesting a specific role of NR1 carboxy-terminal sequences in the activity-dependent synaptic targeting of NMDA receptor clusters of spinal cord neurons.
Assuntos
Processamento Alternativo , Regulação da Expressão Gênica no Desenvolvimento , Variação Genética , Receptores de N-Metil-D-Aspartato/genética , Sinapses/fisiologia , Animais , Desenvolvimento Embrionário , Modelos Moleculares , Conformação Proteica , Subunidades Proteicas/química , Subunidades Proteicas/genética , Ratos , Ratos Sprague-Dawley , Ratos Wistar , Receptores de N-Metil-D-Aspartato/química , Receptores de N-Metil-D-Aspartato/fisiologia , Medula Espinal/embriologia , Medula Espinal/fisiologiaRESUMO
Reliability of life-event reports was examined in 18 outpatient schizophrenics, using a 102-item structured checklist. Patients and one close relative were interviewed regarding events during the 12 preceding months. Interviewers were randomly assigned to patients, pair members were seen by different individuals. Mean intrapair agreement for all events combined was .22. Objective items exhibited greater reliability than subjective ones, but item ambiguity, event recency, and stressfulness did not appear to influence agreement. Pairs evidenced low concordance on event dates. A greater number of events were recalled for the more recent six months than for the earlier period, and a pronounced interviewer effect on the number of reported events emerged. These findings, together with those from other reliability investigations, cast doubt on the validity of some retrospective studies of the relationship of life events to illness onset.
Assuntos
Assistência Ambulatorial , Entrevista Psicológica , Acontecimentos que Mudam a Vida , Esquizofrenia/diagnóstico , Adolescente , Adulto , Idoso , Feminino , Humanos , Masculino , Rememoração Mental , Pessoa de Meia-Idade , Psicometria , Estudos Retrospectivos , Esquizofrenia/terapia , Psicologia do EsquizofrênicoRESUMO
Historians of medieval and early modern psychiatry have utilized limited source materials in their research. They have focused on printed works, particularly formal treatises by celebrated authors, and neglected manuscript collections. The resulting histories depict early European psychiatric thought as dominated by demonology. Examination of the archives of an early English legal incompetency jurisdiction flatly contradicts this picture. Starting in the 13th century, the English government conducted mental status examinations of psychiatrically disabled individuals, using commonsense, naturalistic criteria of impairment; private, supervised guardians were appointed for such persons. Furthermore, etiological theories entertained by royal officials and laymen relied on physiological and psychological notions of psychiatric illness. These findings raise serious questions about conventional accounts of this period and underline the need for more research using original manuscripts.
Assuntos
Transtornos Mentais/história , Psiquiatria/história , Inglaterra , Psiquiatria Legal/história , História do Século XV , História do Século XVI , História Medieval , Humanos , Transtornos Mentais/diagnósticoRESUMO
Documenting the early history of mental illness in North America is complicated by the absence of colonial institutions specializing in the care or management of the insane. However, during the first half of the 17th century, a single authority existed in England, the Court of Wards and Liveries (1540-1660), with responsibility for appointing guardians for the mentally disabled. In 1637, Benoni Buck, a man with severe mental retardation, was referred to this court from Jamestown, Va. The ensuing conflict over Benoni's custody exposed a contradiction between the economic and political exigencies of a new order and the social obligation to protect the mentally ill. Benoni Buck is almost certainly the first case of mental disability reported from the English colonies. The case thereby represents a minor landmark in the history of mental illness in America; May 1987 marks the 350th anniversary of the first petition for guardianship.
Assuntos
Deficiência Intelectual/história , Inglaterra , História do Século XVII , Humanos , Jurisprudência/história , Tutores Legais , América do Norte , VirginiaRESUMO
BACKGROUND: Suggestive findings of an earlier study that prenatal nutritional deficiency was a determinant of schizophrenia prompted us to undertake a second test of the hypothesis using more precise data on both exposure and outcome. METHODS: Among persons born in the cities of western Netherlands during 1944 through 1946, we compared the risk for schizophrenia in those exposed and unexposed during early gestation to the Dutch Hunger Winter of 1944/1945. The frequency of hospitalized patients with schizophrenia at age 24 to 48 years in the exposed and unexposed birth cohorts was ascertained from a national psychiatric registry. RESULTS: The most exposed birth cohort, conceived at the height of the famine, showed a twofold and statistically significant increase in the risk for schizophrenia (relative risk [RR] = 2.0; 95% confidence interval [CI] = 1.2 to 3.4; P < .01) in both men (RR = 1.9; 95% CI = 1.0 to 3.7; P = .05) and women (RR = 2.2; 95% CI = 1.0 to 4.7; P = .04). Among all birth cohorts of 1944 through 1946, the risk for schizophrenia clearly peaked in this exposed cohort. CONCLUSION: Prenatal nutritional deficiency may play a role in the origin of some cases of schizophrenia.
Assuntos
Complicações na Gravidez/epidemiologia , Esquizofrenia/epidemiologia , Inanição/epidemiologia , Adulto , Criança , Pré-Escolar , Estudos de Coortes , Feminino , Hospitalização , Humanos , Incidência , Lactente , Masculino , Pessoa de Meia-Idade , Países Baixos/epidemiologia , Defeitos do Tubo Neural/epidemiologia , Defeitos do Tubo Neural/etiologia , Gravidez , Efeitos Tardios da Exposição Pré-Natal , Sistema de Registros , Fatores de Risco , Esquizofrenia/etiologiaRESUMO
Histories of psychiatry concerning preindustrial Europe emphasize demonologic beliefs and physical mistreatment of the insane. Records of an English legal incompetency jurisdiction demonstrate that both government officials and laymen accepted that psychiatric disorders had biological and psychosocial origins. This jurisdiction, which developed a social welfare dimension by the seventeenth century, offered benevolent protection for the insane. Private guardians arranged for the lodging and care of their wards in private homes. While physicians played little role in the certification process, the guardians made frequent use of their skills. Furthermore, some physicians with established reputations in psychiatry accepted patients into their homes for prolonged cures.
Assuntos
Psiquiatria Legal/história , Tutores Legais/história , Transtornos Mentais/diagnóstico , Instituições Residenciais/história , Inglaterra , História do Século XVI , História do Século XVII , História Medieval , Humanos , Transtornos Mentais/história , Transtornos Mentais/terapia , Papel do Médico , Terminologia como AssuntoRESUMO
OBJECTIVE: The authors examined whether deaths of lovers and close friends from AIDS increased the frequency of depressive symptoms and depressive disorder in a group of homosexual men. METHOD: Two hundred seven volunteer male homosexual subjects were interviewed in New York City in 1988 and 1989. Depressive symptoms were measured with the Hamilton Rating Scale for Depression, administered by a clinician, and two self-report symptom checklists. Subjects were evaluated for major depression with the Structured Clinical Interview for DSM-III-R. Each subject also reported the number of lovers and close friends who had died of AIDS 1) since the beginning of the epidemic in 1981 and 2) in the 6 months preceding the interview. RESULTS: Neither the overall level of depressive symptoms, the presence of specific symptom clusters, nor the presence of a diagnosed depressive disorder was related to the number of AIDS deaths a subject reported in either time frame. In contrast, bereavement reactions specific to loss, namely, preoccupation with and searching for the deceased, were more common in subjects with greater numbers of losses. The findings for depressive symptoms and major depression are not readily explained by measurement artifact, overrepresentation of asymptomatic subjects among study volunteers, habituation effects, numbness, or shallowness of attachments in the subjects. CONCLUSIONS: Changes in normative expectations regarding AIDS deaths and mobilization against AIDS within the gay community may account for the lack of association between the number of losses resulting from AIDS and the presence of depressive symptoms and depressive disorder.
Assuntos
Síndrome da Imunodeficiência Adquirida/epidemiologia , Luto , Surtos de Doenças , Homossexualidade/psicologia , Adaptação Psicológica , Adolescente , Adulto , Depressão/diagnóstico , Depressão/epidemiologia , Transtorno Depressivo/diagnóstico , Transtorno Depressivo/epidemiologia , Soropositividade para HIV/psicologia , Humanos , Masculino , Pessoa de Meia-Idade , Cidade de Nova Iorque/epidemiologia , Inventário de Personalidade , Escalas de Graduação PsiquiátricaRESUMO
The struggle to maintain hope has been described as a central theme faced by clinicians who work with HIV-spectrum people. The authors investigated psychiatric and psychosocial variables thought to be related to level of hope in a community sample of 208 HIV-positive and HIV-negative homosexual men, with the goal of identifying possible risk and protective factors in the progression of HIV infection. Overall, they found high levels of hope and low levels of current syndromal disorder or depressive symptoms. While the sample was a selected group of successful and well-educated homosexual men, it nevertheless remains noteworthy that they were able to preserve a sense of faith in their future despite HIV infection.
Assuntos
Atitude , Soropositividade para HIV/psicologia , Homossexualidade/psicologia , Síndrome da Imunodeficiência Adquirida/psicologia , Adaptação Psicológica , Adulto , Atitude Frente a Saúde , Depressão/diagnóstico , Depressão/psicologia , Transtorno Depressivo/diagnóstico , Transtorno Depressivo/psicologia , Humanos , Controle Interno-Externo , Acontecimentos que Mudam a Vida , Masculino , Pessoa de Meia-Idade , Inventário de Personalidade , Escalas de Graduação Psiquiátrica , Apoio SocialRESUMO
BACKGROUND: Several previous studies have established that miscarriage is a risk factor for depressive symptoms and disorder. By contrast, research on miscarriage as a possible risk factor for anxiety symptoms is inconclusive, and for anxiety disorders, sparse and uninformative. The current study examines the incidence of and relative risk for 3 DSM-III anxiety disorders (obsessive-compulsive disorder [OCD], panic disorder, and phobic disorders) within the 6 months following miscarriage. Adequate diagnostic data on other anxiety disorders were not available. METHOD: Using a cohort design, we tested whether women who miscarry are at increased risk for a first or recurrent episode of an anxiety disorder in the 6 months following loss. The miscarriage cohort consisted of women attending a medical center for spontaneous abortion (N = 229); the comparison group was a population-based cohort of women drawn from the community (N = 230). RESULTS: Among miscarrying women, 3.5% experienced a recurrent episode of OCD, compared with 0.4% of community women (relative risk [RR] = 8.0; 95% confidence interval [CI] = 1.0 to 63.7). The relative risk for noncomorbid panic disorder was substantial (RR = 3.6), albeit not statistically significant (95% CI = 0.8 to 17.2). There was no strong evidence for increased risk for phobic disorders or agoraphobia, combined or considered separately, in the 6 months following loss. Relative risk for all 3 disorders combined was 1.5 (95% CI = 0.9 to 2.3). CONCLUSION: In this first miscarriage cohort study using a concurrent frequency-matched comparison group, miscarriage was a substantial risk factor for an initial or recurrent episode of OCD. Given statistical power limitations of this investigation, the current findings do not preclude a possible contribution of miscarriage to risk for other anxiety disorders.
Assuntos
Aborto Espontâneo/complicações , Transtornos de Ansiedade/epidemiologia , Aborto Espontâneo/epidemiologia , Adolescente , Adulto , Agorafobia/diagnóstico , Agorafobia/epidemiologia , Agorafobia/etiologia , Transtornos de Ansiedade/diagnóstico , Transtornos de Ansiedade/etiologia , Estudos de Coortes , Comorbidade , Feminino , Seguimentos , Humanos , Incidência , Acontecimentos que Mudam a Vida , Transtorno Obsessivo-Compulsivo/diagnóstico , Transtorno Obsessivo-Compulsivo/epidemiologia , Transtorno Obsessivo-Compulsivo/etiologia , Transtorno de Pânico/diagnóstico , Transtorno de Pânico/epidemiologia , Transtorno de Pânico/etiologia , Transtornos Fóbicos/diagnóstico , Transtornos Fóbicos/epidemiologia , Transtornos Fóbicos/etiologia , Gravidez , Escalas de Graduação Psiquiátrica/estatística & dados numéricos , Recidiva , Risco , Fatores de RiscoRESUMO
Differential recall between compared groups is discussed most often in the context of case-control studies. Cases, compared to controls, are suspected of providing a more complete report of their true exposure to an hypothesized risk factor, thereby biasing upwards the estimate of its effect. The present paper describes how differential recall can arise with any observational design in epidemiology; with any class of study variable, not only exposures; and may inflate or deflate the true value of the estimate of effect size. We list a variety of study designs and questionnaire tactics that aim to remedy these problems. The scope and magnitude of the bias created by differential recall and the efficacy of proposed remedies require further study.
Assuntos
Viés , Métodos Epidemiológicos , Rememoração Mental , Estudos de Casos e Controles , Estudos de Coortes , Modificador do Efeito Epidemiológico , Humanos , Razão de Chances , Reprodutibilidade dos Testes , Fatores de Risco , Inquéritos e Questionários/normas , Fatores de TempoRESUMO
An alloplastic ligament prosthesis with carbon fibres should not only be biocompatible but should also restore the biomechanical function of a natural system, which includes restoring its elasticity. Tests with new types of braided carbon fibre strands showed their elastic extensibility to increase with increasing number of filament tows and increasing braid angle. The best results were obtained with 32 tows and a 43 degrees braid angle. This strand type was tested in vitro as a medial collateral ligament prosthesis with two methods of fixation in human knees and, in like manner, in vivo in sheep knees. Biomechanical tests in vitro using human cadaver knees and sheep knees after 12 weeks' implantation showed an elasticity similar to that of normal natural ligaments.
Assuntos
Materiais Biocompatíveis , Carbono , Prótese do Joelho , Ligamentos Articulares/cirurgia , Animais , Fenômenos Biomecânicos , Elasticidade , Humanos , Articulação do Joelho/fisiologia , Ligamentos Articulares/fisiologiaRESUMO
It is thought that abrasion particles can produce a tissue reaction when alloplastic material is used for prosthetic devices. Therefore it is important to examine the reaction of the tissues and the body to microparticles before introducing a new material. Carbon reinforced carbon is a new material which is suitable for artificial joints because of its physical properties (strength and elasticity). Carbon fibre fragments with a diameter of 7 microns and a length between 20-100 microns were injected in the medullary canal of 16 rabbits, and evaluated after periods of 2 and 12 weeks. Phagocytosis of small carbon fibre fragments by macrophages occurs, but only a minimal foreign body reaction to the intramedullary carbon fibre fragments. There is a small amount of fibrosis around some carbon fibres and a small amount of new bone formation with inclusion of carbon. Only a few carbon fragments are transported to the parenchymal organs. There is no foreign body reaction.
Assuntos
Carbono/efeitos adversos , Reação a Corpo Estranho/etiologia , Animais , Materiais Biocompatíveis , Tamanho da Partícula , Próteses e Implantes , CoelhosRESUMO
BACKGROUND: Although minor depressive disorder is of considerable clinical and public health importance, it has received limited research attention relative to major depressive disorder. This study examines the incidence rate and relative risk for minor depressive disorder following miscarriage. METHODS: Using a cohort design we tested whether miscarrying women are at increased risk for an episode of minor depression (diagnosed based on research criteria proposed in Appendix B of DSM-IV) in the 6 months following loss. The miscarriage cohort consisted of women attending a medical center for spontaneous abortion (n=229); the comparison group was a population-based cohort of women drawn from the community (n=230). RESULTS: Among miscarrying women, 5.2% experienced an episode of minor depression, compared with 1.0% of community women. The overall relative risk for an episode of minor depression for miscarrying women was 5.2 (95% confidence interval, 1.2-23.6). Relative risk did not vary by length of gestation at the time of loss or attitude toward the pregnancy. The majority of episodes in miscarrying women began within 1 month following loss. LIMITATIONS: Minor depression was relatively rare in both study cohorts. The resulting limits on statistical power reduced our ability to identify factors, such as sociodemographic or reproductive history variables that might moderate the effect of miscarriage on risk for minor depression. CONCLUSIONS: These results, in the context of prior work showing increased risks of major depression and depressive symptoms following miscarriage, lend some support to the conceptualization of minor depressive disorder as part of a continuum of symptom severity. Miscarrying women should be evaluated for depression at their follow-up medical visits.
Assuntos
Aborto Espontâneo/psicologia , Transtorno Depressivo/diagnóstico , Transtorno Depressivo/etiologia , Adolescente , Adulto , Estudos de Coortes , Feminino , Humanos , Gravidez , Escalas de Graduação PsiquiátricaRESUMO
Extensive involvement of the colon with cavernous haemangioma is described in a 26-year old man. Clinically the disease manifests itself by recurrent rectal bleeding and abdominal distension, leading to his admission. Double contrast examination of the colon showed involvement of the ascending, transverse and descending colon, the sigmoid and the rectum. Arteriography demonstrated vascular tumours in the territory of the jejunal artery, the left colic artery and the superior rectal artery. This is a rare condition which has been described only 53 times in the literature (1, 3, 5, 7). The diagnostic value of double contrast examination of the colon and of selective angiography for differential diagnosis is stressed.
Assuntos
Neoplasias do Colo/diagnóstico por imagem , Hemangioma Cavernoso/diagnóstico por imagem , Neoplasias Primárias Múltiplas/diagnóstico por imagem , Adulto , Neoplasias do Colo/patologia , Hemangioma Cavernoso/patologia , Humanos , Masculino , Neoplasias Primárias Múltiplas/patologia , RadiografiaRESUMO
An imbalance in the antioxidative system was connected with the development of a number of pathological processes. In order to receive values of a healthy group and to evaluate pathological changes of the trace element dependent antioxidative status in future, we investigated 99 healthy volunteers (45 male and 54 female, mean age 37.4 +/- 11.7 years). We determined the concentrations of Se, Cu and Zn, the concentrations of malondialdehyde (MDA) and the activities of the Se dependent glutathione peroxidase (GSH-Px) and the Zn/Cu dependent superoxide dismutase (SOD). The plasma concentrations (mean +/- SD) for Se, Cu and Zn were 0.84 +/- 0.10 micromol/l, 15.6 +/- 2.78 micromol/l and 12.6 +/- 1.80 micromol/l, resp., and for non protein-bound and protein bound MDA 0.27 +/- 0.07 micromol/l and 1.11 +/- 0.25 micromol/l, resp. The activity of GSH-Px in plasma and erythrocytes was 130 +/- 20.8 U/l and 19.8 +/- 4.18 U/mg Hb, resp. and of SOD in erythrocytes 3,159 +/- 847.2 U/g Hb. In plasma positive correlations have been found between Se concentrations and GSH-Px activities (p < 0.002, r = 0.31) and between GSH-Px activities and concentrations of non protein-bound MDA (p = 0.004, r = 0.28). A negative correlation has been observed between GSH-Px activities in plasma and in erythrocytes. The higher the concentrations of Cu in erythrocytes, the higher were the activities of SOD (p = 0.03, r = 0.22) and GSH-Px in erythrocytes (r = 0.26, p = 0.01), while an increasing activity of GSH-Px in these cells correlated with a decreasing concentration of non protein-bound MDA (r = -0,31, p = 0.002). An increase in BMI was connected with an increase in protein-bound MDA and a decrease in GSH-Px activities in pLasma (p = 0.002 and r = 0.23). As the results demonstrate, Se and Cu concentrations in erythrocytes can improve the trace element dependent antioxidative status.
Assuntos
Antioxidantes/farmacologia , Cobre/química , Selênio/química , Oligoelementos , Zinco/química , Cobre/metabolismo , Eritrócitos/enzimologia , Feminino , Glutationa Peroxidase/metabolismo , Humanos , Masculino , Malondialdeído/química , Superóxido Dismutase/metabolismoRESUMO
Vasospastic reactions are known to be a complication of thromboembolic prophylaxis with Heparin-dihydroergotamine. We describe a rare case after successful replantation of an amputated thumb. On the third day after surgery, Heparin-dihydroergotamine was administered once. Within three hours, the thumb turned pale and cold. At revision, a spasm of the artery proved to be the cause of ischemia. Therapeutic efforts were unsuccessful, even intraarterial injection of Prostaglandin E1 and the interposition of a vein graft. Amputation became necessary. Because of the possible complication with ergotism and the consequence of a failed replantation, we suggest not to use Heparin-dihydroergotamine for thromboembolic prophylaxis in microsurgery.
Assuntos
Amputação Traumática/cirurgia , Di-Hidroergotamina/efeitos adversos , Ergotismo/cirurgia , Heparina de Baixo Peso Molecular/efeitos adversos , Complicações Pós-Operatórias/induzido quimicamente , Reimplante , Polegar/lesões , Adulto , Amputação Cirúrgica , Di-Hidroergotamina/administração & dosagem , Combinação de Medicamentos , Heparina de Baixo Peso Molecular/administração & dosagem , Humanos , Isquemia/induzido quimicamente , Isquemia/cirurgia , Masculino , Complicações Pós-Operatórias/cirurgia , Reoperação , Polegar/irrigação sanguínea , Polegar/cirurgiaRESUMO
Posttraumatic soft tissue and bone defects can pose problems for the surgeon. Autogenous bone from the iliac crest may be used to fill bone defects. To achieve bone healing, a well vascularized recipient site for the graft is important. Local muscle flaps or distant microvascular flaps improve vascularity by introducing a fresh blood supply. Cellular and humoral antibodies are more effective and allow quicker revascularisation of the transplanted graft. 49 soft tissue defects were treated by local muscle flaps. In 14 cases the soleus, in 28 the gastrocnemius, in three the tibialis anterior, in two the abductor hallucis, and in two the gracilis muscle was transposed. 38 cases had posttraumatic osteitis, in eight the defect was merely a soft tissue defect and in three due to tumour excision. In 24 patients a combination of soft tissue repair and cancellous bone grafting was performed. Four flaps failed because of total or partial necrosis. In all cases full weight bearing on the leg with good soft tissue cover was achieved.