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1.
Body Image ; 45: 238-264, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-36965235

RESUMO

This meta-analysis synthesized longitudinal data on mean-level change in body image, focusing on the constructs of body satisfaction and dissatisfaction, body esteem, perceived attractiveness, valuation, self-objectification, and body shame. We searched five databases and accessed unpublished data to identify studies that assessed body image at two or more time points over six months or longer. Analyses were based on data from 142 samples representing a total of 128,254 participants. The age associated with the midpoint of measurement intervals ranged from 6 to 54 years. Multilevel metaregression models examined standardized yearly mean change, and the potential moderators of body image construct, gender, birth cohort, attrition rate, age, and time lag. Boys and men showed fluctuations in overall body image with net-improvements between ages 10 and 24. Girls and women showed worsening body image between ages 10 and 16, but improvements between ages 16 and 24. Change was greatest between ages 10 and 14, and stabilized around age 24. We found no effect of construct, birth cohort, or attrition rate. Results suggest a need to revise understandings of normative body image development: sensitive periods may occur somewhat earlier than previously believed, and body image may show mean-level improvements during certain age ranges.


Assuntos
Imagem Corporal , Autoimagem , Masculino , Humanos , Feminino , Criança , Adolescente , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Imagem Corporal/psicologia , Emoções , Vergonha , Satisfação Pessoal
2.
Niger J Clin Pract ; 21(4): 514-518, 2018 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-29607867

RESUMO

BACKGROUND: Recent guidelines from the National Institute for Clinical Excellence recommend the use of ultrasonography in the central venous catheterization of children. In this study, we aimed to compare area measurements using ultrasonography and efficiency of varying Trendelenburg degrees on the area measurements, for two different entry points used as internal jugular vein (IJV) cannulation points in newborns. METHODS: Fifty-eight healthy newborns, weighing between 3000 and 3500 g, were recruited for this prospective study. Right IJV (RIJV) consecutive measurements were performed in three different Trendelenburg positions at 0°, 15°, and 30°, at two different entry points: The superior approach and an inferior approach. The landmark used in the superior approach was the top of the triangle formed by the two heads of the sternocleidomastoid muscle with the clavicle; while in the inferior approach, it was taken as the midpoint of the clavicle, as measured from the upper edge of the clavicle. RESULTS: The cross-sectional area (CSA) of the RIJV was significantly increased when using the inferior approach, compared to that in the superior approach, in all Trendelenburg degrees, including the neutral position. Both 15° and 30° Trendelenburg positioning resulted in a significant increase in CSA, both in superior and inferior approaches, when compared to neutral positioning. CONCLUSION: The use of 15° Trendelenburg positioning may have significant advantage for increasing the CSA when used with the inferior approach.


Assuntos
Cateterismo Venoso Central/métodos , Veias Jugulares/anatomia & histologia , Ultrassonografia de Intervenção/métodos , Feminino , Decúbito Inclinado com Rebaixamento da Cabeça , Humanos , Lactente , Recém-Nascido , Veias Jugulares/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Decúbito Dorsal
3.
Endosc Ultrasound ; 3(Suppl 1): S10, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26425505

RESUMO

BACKGROUND AND AIMS: The endoscopic treatment of pancreatic fluid collections (PFCs) has become the preferred first-line approach. Fully covered self-expandable metal stents (FCSEMS) were considered as an alternative to multiple double pigtail stents. The aim of this study was to evaluate the results of the endosonography guided drainage (EUS-GD) of PFCs with FCEMS. MATERIALS AND METHODS: A total of 33 consecutive patients were included. Cystogastrostomy and cystoduodenostomy were created with a linear echoendoscope under endosonographic and fluoroscopic control. Procedures were performed in a standard way of, puncture with a 19 gauge needle, bougie dilation and insertion of FCSEMS. RESULTS: A total of 33 patients (mean age 52 years, 21 men, range: 18-77 years), were included. PFCs were 22 non-infected symptomatic pseudocyst and 11 walled-off necrosis or abscess. EUS-GD was successful in 30 (90.9%) patients. Stent insertion failed in one patient. Two patients needed surgery. Complications were observed in 8 (25%) patients (stent dislocation in 3, perforation in 2, bleeding in 2 and pneumoperitoneum in 1 patient). Procedure related mortality was not seen. The mean cyst size was 11.3 cm (5-22). FCSEMS were successful in the treatment of pseudocysts (after 1 month mean cyst size is 6.2 cm, range: 0-15 cm, with 54.8% decrement rate). During a mean follow-up of 15 months complete resolution was 66.6% (20 patients) and recurrence due to stent malfunction was 10%. All these cases were submitted to a new session of endoscopic drainage. CONCLUSIONS: EUS-GD, FCSEMS insertion provides an effective, minimally invasive, and safe approach in the management of PFCs.

4.
Strategies Trauma Limb Reconstr ; 8(2): 127-31, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23892496

RESUMO

Gustilo type IIIC open fractures of the tibia are high-energy injuries necessitating long treatment periods and usually multiple surgical procedures and eventually resulting in high morbidity rates and even amputations. We present here a case involving a type IIIC open tibial fracture with massive loss of the entire tibial diaphysis, which we treated by performing acute tibialization of the fibula after revascularization of the posterior tibial artery in a single-stage emergency operation.

5.
J Bone Joint Surg Br ; 88(10): 1341-6, 2006 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-17012425

RESUMO

This study reviews the predisposing features, the clinical, and laboratory findings at the time of diagnosis and the results of single-stage revision of prosthetic replacement of the elbow for infection. Deep infection occurred in six of 305 (1.9%) primary total elbow replacements. The mean follow-up after revision was 6.8 years (6 months to 16 years) and the mean age at the time of revision was 62.7 years (56 to 74). All six cases with infection had rheumatoid arthritis and had received steroid therapy. The infective organism was Staphylococcus aureus. Four of the six elbows had a developed radiolucency around one component or the other. Successful single-stage exchange arthroplasty was carried out with antibiotic-loaded cement in five of the six cases. In one, the revision prosthesis had to be removed following recurrence of the infection. The functional result was good in three elbows, fair in one, poor in one and fair in the resection arthroplasty.


Assuntos
Artroplastia de Substituição/métodos , Articulação do Cotovelo/cirurgia , Infecções Relacionadas à Prótese/cirurgia , Idoso , Anti-Infecciosos/uso terapêutico , Artrite Reumatoide/diagnóstico por imagem , Artrite Reumatoide/cirurgia , Terapia Combinada/métodos , Articulação do Cotovelo/diagnóstico por imagem , Feminino , Humanos , Pessoa de Meia-Idade , Infecções Relacionadas à Prótese/diagnóstico por imagem , Infecções Relacionadas à Prótese/tratamento farmacológico , Radiografia , Reoperação , Infecções Estafilocócicas/diagnóstico por imagem , Infecções Estafilocócicas/tratamento farmacológico , Infecções Estafilocócicas/cirurgia , Resultado do Tratamento
6.
J Neurol Neurosurg Psychiatry ; 76(7): 971-6, 2005 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-15965204

RESUMO

BACKGROUND: The optimum operative technique for lateral lumbar disc herniations (LLDH) remains unclear, and both interlaminar and extraspinal approaches are used. OBJECTIVE: To compare outcome after LLDH removal either by a lateral transmuscular approach (LTM) or by a combined interlaminar and paraisthmic approach (CIP). METHODS: 28 patients underwent surgery using CIP and 20 using LTM. All patients were operated on by the same neurosurgeon. The clinical presentation of the two groups was comparable. Overall outcome was assessed after a mean follow up period of between 19 and 37 months using the Ebeling classification. In addition, the effect of surgery on radicular pain, low back pain, and sensory and motor deficits was defined. RESULTS: Excellent to good results were achieved in 95% of the LTM group and 57% of the CIP group. The outcome was satisfactory to poor in 5% of the LTM and 43% of the CIP group (p<0.004). The percentage of sensorimotor deficit and of radicular pain improvement was higher in the LTM group. New low back pain was found exclusively in the CIP group (21%). The complication rate was 5% in the LTM group and 11% in the CIP group. CONCLUSIONS: The LTM approach achieves a better overall outcome and improvement in radiculopathy. The complication rate is lower with the transmuscular route and the risk of new low back pain is minimised. These results are likely to be attributable at least in part to the lesser invasiveness of the LTM approach.


Assuntos
Discotomia/métodos , Deslocamento do Disco Intervertebral/cirurgia , Vértebras Lombares/cirurgia , Feminino , Seguimentos , Humanos , Laminectomia/métodos , Dor Lombar/etiologia , Dor Lombar/cirurgia , Masculino , Pessoa de Meia-Idade , Músculos/cirurgia , Exame Neurológico , Avaliação de Processos e Resultados em Cuidados de Saúde , Complicações Pós-Operatórias/etiologia , Radiculopatia/etiologia , Radiculopatia/cirurgia , Estudos Retrospectivos
7.
J Bone Joint Surg Br ; 87(6): 814-8, 2005 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-15911665

RESUMO

There are few reports in the literature of the diagnosis and treatment of the infected shoulder arthroplasty. Most deal with resection arthroplasty and two-stage exchange surgery. We present our results of one-stage exchange operation as treatment for the infected shoulder arthroplasty. Our group comprised 16 patients (ten men, six women) with 16 infected arthroplasties. By the time of follow-up, two patients had died (mean 5.8 years), two could not be located and three had already undergone revision surgery. Nine patients were thus available for clinical examination and assessment. The infections were largely caused by staphylococci, Propionibacterium species and streptococci. Two were early infections (within three months of surgery) and 14 were late infections. The mean follow-up was 5.8 years (13 months to 13.25 years) when the mean Constant-Murley score was 33.6 points and the mean University College of Los Angeles score 18.3 points. Further revision was performed in three patients. One sustained a peri-prosthetic humeral fracture, another developed an acromial pseudarthrosis after transacromial surgery and the third suffered recurrent dislocations. No patient had a recurrence of infection. A one-stage exchange procedure using antibiotic-loaded bone cement eradicated infection in all our patients and we suggest that such a procedure is at least as successful as either a resection arthroplasty or a two-stage exchange in the management of the infected shoulder arthroplasty.


Assuntos
Artroplastia de Substituição/métodos , Infecções Relacionadas à Prótese/cirurgia , Articulação do Ombro/cirurgia , Idoso , Idoso de 80 Anos ou mais , Antibacterianos/administração & dosagem , Cimentos Ósseos , Esquema de Medicação , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Infecções Relacionadas à Prótese/diagnóstico por imagem , Radiografia , Reoperação/métodos , Estudos Retrospectivos , Articulação do Ombro/diagnóstico por imagem
8.
Clin Infect Dis ; 39(11): 1599-603, 2004 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-15578358

RESUMO

BACKGROUND: Loosening of the prosthetic cup is the limiting factor in the service life of total hip prostheses (THPs). Despite effective culture methods, the detection of low-grade infection in patients with loose implants still presents a challenge. It is crucial to distinguish between "aseptic" loosening and loosening due to periprosthetic infection, so that appropriate treatment can be administered. We investigated whether aseptic loosening of the acetabular components of THPs is due to unrecognized infection. METHODS: From October through December 2002, a total of 24 patients with acetabular cup loosening were investigated. Only patients without clinical signs of infection and with negative results of bacteriologic culture of synovial fluid (obtained by preoperative aspiration) were included in the study. Intraoperative biopsy samples obtained from the neocapsule and synovia (e.g., the interface membrane) were examined by means of routine culture methods and by polymerase chain reaction (PCR) for detection of 16S ribosomal RNA (rRNA). Control subjects included 9 patients undergoing primary hip arthroplasty. RESULTS: C-reactive protein levels and erythrocyte sedimentation rates were slightly elevated in the group with loosening, compared with the control group, but the difference was not statistically significant. PCR and routine culture showed no microorganisms in either group, with the exception of 1 patient in the loosening group. CONCLUSIONS: PCR for detection of 16S rRNA in tissue specimens obtained from hip joints is not superior to routine bacteriologic culture techniques for detection of low-grade infections. However, these results demonstrate that the loosening of cups in THPs do not usually result from nonculturable periprosthetic infection, if the microbiological processing is adequate.


Assuntos
Bactérias/isolamento & purificação , Infecções Bacterianas/etiologia , Infecções Bacterianas/microbiologia , Prótese de Quadril/efeitos adversos , Falha de Prótese , Infecções Relacionadas à Prótese/etiologia , Infecções Relacionadas à Prótese/microbiologia , Idoso , Idoso de 80 Anos ou mais , Bactérias/genética , Reações Falso-Negativas , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Desenho de Prótese , Índice de Gravidade de Doença
10.
Z Orthop Ihre Grenzgeb ; 142(5): 611-7, 2004.
Artigo em Alemão | MEDLINE | ID: mdl-15472773

RESUMO

AIM: Infection of shoulder arthroplasties is rare, but represents a potentially devastating complication. The aim of this work is to show the value of various diagnostic procedures, specify causative pathogens and present the results of one-stage revised patients. METHOD: We performed a retrospective analysis of our 16 consecutive patients with an infected shoulder arthroplasty. RESULTS: In 13 of 16 cases a causative pathogen could be established preoperatively. Staphylococcus and Propioni spp. dominated. Only 9 patients could be followed up because two died, two were lost and three patients were revised because of non-infectious complications. The follow-up time was 5.8 years (13 months-13.25 years). The Constant-Murley score was 33.6 of 100. Eradication of infection was achieved in all patients. In the follow-up time no reinfection has occurred. CONCLUSION: Culturing of the preoperative joint fluid aspirate and the determination of CRP provide an early diagnosing of shoulder arthroplasty infection. One-stage revision arthroplasty with radical debridement and application of antibiotics to the bone cement provide an accurate therapy of periprosthetic shoulder infection.


Assuntos
Artroplastia/métodos , Infecções Bacterianas/diagnóstico , Infecções Bacterianas/cirurgia , Prótese Articular/efeitos adversos , Infecções Relacionadas à Prótese/diagnóstico , Infecções Relacionadas à Prótese/cirurgia , Idoso , Idoso de 80 Anos ou mais , Artroplastia/efeitos adversos , Infecções Bacterianas/etiologia , Infecções Bacterianas/prevenção & controle , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Falha de Prótese , Infecções Relacionadas à Prótese/etiologia , Infecções Relacionadas à Prótese/prevenção & controle , Reoperação/métodos , Estudos Retrospectivos , Resultado do Tratamento
11.
Anaesthesist ; 52(6): 511-5, 2003 Jun.
Artigo em Alemão | MEDLINE | ID: mdl-12835872

RESUMO

Abuse of 3,4-methylenedioxymethamphetamine (MDMA,Ecstasy) is still growing over the last years and reports of severe or even fatal complications, such as arrhythmias, hyperpyrexia, rhabdomyolysis, disseminated intravascular coagulopathy (DIC), acute renal or liver failure or brain oedema are also increasing. We report the case of a 21-year-old male who took a suicidal overdose of MDMA and subsequently developed severe hyperpyrexia (>43 degrees C/109.4 degrees F), rhabdomyolysis with an initial myoglobin level of 88,000 microg/l, disseminated intravascular coagulation (DIC) and beginning renal and liver failure. Infusing dantrolene 140 mg (2.5 mg/kg body weight) i.v. and using supportive cooling was effective in treating hyperpyrexia. To support renal function and diuresis we increased the intravenous fluid supply up to 5 l per day which led to a raised elimination of myoglobin, urea nitrogen and creatinine within 1 week. Hemodialysis was not necessary. DIC was treated according to laboratory parameters by supply of antithrombin (AT) III, fresh frozen plasma, prothrombin complex concentrates (PPSB) and continuous aprotinin 100,000 IE/h.


Assuntos
Febre/induzido quimicamente , Alucinógenos/intoxicação , N-Metil-3,4-Metilenodioxianfetamina/intoxicação , Rabdomiólise/induzido quimicamente , Injúria Renal Aguda/induzido quimicamente , Adulto , Coagulação Intravascular Disseminada/induzido quimicamente , Diurese , Febre/fisiopatologia , Humanos , Falência Hepática/induzido quimicamente , Masculino , Plasma , Protrombina/uso terapêutico , Rabdomiólise/fisiopatologia , Inibidores de Serina Proteinase/uso terapêutico , Tentativa de Suicídio
12.
Minim Invasive Neurosurg ; 46(6): 349-53, 2003 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-14968402

RESUMO

OBJECTIVE: Symptomatic lumbar juxta facet cysts (ganglion and synovial cysts) (JFC) are uncommon lesions of the spine, causing radiculopathy and low back pain. The authors present their experiences with microsurgically treated JFC. This rare pathology is discussed with special focus on therapeutic concepts and long-term outcome. METHOD: The records of 27 patients with symptomatic lumbar JFC were retrospectively reviewed. The clinical data and diagnostic procedures were evaluated. The patient age ranged from 38 to 83 years (mean 61 years). Treatment consisted exclusively of microsurgical excision of the cysts after partial hemilaminectomy. The early surgical results were evaluated 6 weeks after surgery. For assessment of late surgical results (mean follow-up period 70 months), the Finneson and Cooper outcome scale was used. RESULTS: After 6 weeks, the preoperative symptoms were improved in 25 patients (93 %). Long-time follow-up was available in 23 patients. Good (pain improved and able to function well) to excellent (pain free and able to function well) results were still found in 83 % of the patients. With exception of 2 small asymptomatic dural tears and a slight temporary increase of the preoperative paresis, no surgical complications were encountered. One JFC recurred after 4 months and required re-operation with finally good outcome. CONCLUSION: Adequate and definitive treatment in symptomatic JFC consists in microsurgical resection. A partial hemilaminectomy is sufficient for surgical exposure. Excellent long-term outcome can be achieved. Recurrences and surgical complications are rare.


Assuntos
Cistos Glanglionares/cirurgia , Vértebras Lombares/cirurgia , Microcirurgia , Neoplasias da Coluna Vertebral/cirurgia , Cisto Sinovial/cirurgia , Articulação Zigapofisária/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Seguimentos , Cistos Glanglionares/complicações , Humanos , Dor Lombar/etiologia , Dor Lombar/cirurgia , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Neoplasias da Coluna Vertebral/complicações , Cisto Sinovial/complicações , Fatores de Tempo , Resultado do Tratamento
13.
J Med Microbiol ; 51(10): 899-902, 2002 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-12435072

RESUMO

The first documented case of knee alloarthroplasty infection due to Abiotrophia defectiva, formerly known as nutritionally variant streptococci (NVS) and Streptococcus defectivus, is presented. The microbiology of this bacterium is discussed and clinical features of previously reported cases of infections by NVS are reviewed briefly.


Assuntos
Artroplastia do Joelho/efeitos adversos , Infecções por Bactérias Gram-Positivas/etiologia , Streptococcaceae/patogenicidade , Infecção da Ferida Cirúrgica/etiologia , Idoso , Feminino , Infecções por Bactérias Gram-Positivas/diagnóstico , Infecções por Bactérias Gram-Positivas/microbiologia , Humanos , Streptococcaceae/isolamento & purificação , Infecção da Ferida Cirúrgica/diagnóstico , Infecção da Ferida Cirúrgica/microbiologia
14.
Unfallchirurg ; 105(4): 322-6, 2002 Apr.
Artigo em Alemão | MEDLINE | ID: mdl-12066470

RESUMO

The results are presented for pterional orbital decompression in 12 patients with symptomatic traumatic retrobulbar hematoma after various traumatic mechanisms. Pre- and postoperative course, neuroradiological findings, additional brain or facial injuries as well as outcome of eye function are analyzed in detail. Mean time delay between trauma and decompression was 56 h (2.4 days), with a wide range from 2 h to 15 days. Preoperative exophthalmos and pupillary disturbances as well as restrictions of extraocular movements decreased in all patients after orbital decompression and removal of the retrobulbar hematoma if the bleeding was localized. Visual acuity remained normal or showed significant improvement in seven patients, four of whom experienced complete recovery. In three patients the eye remained amaurotic. No complications related to the operation were seen. The pterional orbital decompression described here represents an effective alternative approach for patients with sight-threatening retrobulbar hematoma, especially in cases where it is necessary to gain space for the orbit in addition to evacuating space-occupying blood or bone clots and treating neighbouring lesions. Immediate detection and adequate treatment of orbital hematomas is mandatory to achieve an acceptable outcome of eye function.


Assuntos
Descompressão Cirúrgica , Hematoma/cirurgia , Hemorragia Retrobulbar/cirurgia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Cegueira/diagnóstico por imagem , Cegueira/etiologia , Criança , Feminino , Hematoma/diagnóstico por imagem , Hematoma/etiologia , Humanos , Processamento de Imagem Assistida por Computador , Imageamento Tridimensional , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/diagnóstico por imagem , Complicações Pós-Operatórias/etiologia , Radiografia , Hemorragia Retrobulbar/diagnóstico por imagem , Hemorragia Retrobulbar/etiologia , Estudos Retrospectivos , Acuidade Visual/fisiologia
15.
Acta Neurochir (Wien) ; 144(2): 113-20; discussion 120, 2002 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-11862510

RESUMO

BACKGROUND: Compressive optic neuropathy (CON) with visual loss is, apart from corneal exposure and disfigurating proptosis, the most serious clinical sign encountered in Graves' ophthalmopathy. However, numerous different approaches and operative techniques have been proposed for orbital decompression, with varying results and side effects. The purpose of the present study was to analyze peri-operative data and long-term results in patients with severe thyroid-related orbitopathy, treated by extended pterional orbital decompression, comparing its effectiveness to other procedures. METHOD: An extended pterional orbital decompression was performed in 42 consecutive patients (59 orbits) with severe thyroid-associated ophthalmopathy after failure of medical and radiation therapy during an 11-year period. Pre- and postoperative examination included visual acuity, Hertel exophthalmometry, ocular motility, visual fields (Goldmann perimetry) and notification of complications. Long-term evaluation was carried out on average at 11 months postoperatively (range 5-26 months). FINDINGS: Visual acuity improved rapidly from a preoperative average of 0.53 +/- 0.33 (range, 0-1) to 0.77 +/- 0.31 (range, 0-1) postoperatively (p<0.001). Worsening was not seen. An average reduction of proptosis of 3.79 +/- 2.32 mm (range, 0.5-8 mm) was achieved with a mean preoperative Hertel measurement of 24.7 +/- 3.93 mm (range, 15-33 mm) (p<0.001). Double vision and restriction of eye motility was present in 76.3% of patients preoperatively and improved in 63% of patients (p<0.001). No new onsets of not already pre-existing double vision was seen. Complications included two cases of permanent palsy of the frontal branch of the facial nerve. INTERPRETATION: The extended pterional orbital decompression improved vision and decreased proptosis and restriction of extra-ocular movements in patients with severe sight-threatening and disfiguring cases of Graves' orbitopathy and is still an effective and low-risk alternative to other non-neurosurgical operative techniques. Especially new developing postdecompression strabismus can be successfully avoided.


Assuntos
Descompressão Cirúrgica/métodos , Doença de Graves/complicações , Doenças do Nervo Óptico/cirurgia , Complicações Pós-Operatórias , Adulto , Idoso , Progressão da Doença , Exoftalmia , Feminino , Seguimentos , Doença de Graves/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Doenças do Nervo Óptico/etiologia , Doenças do Nervo Óptico/patologia , Órbita , Resultado do Tratamento , Acuidade Visual
16.
Surg Neurol ; 56(4): 266-74; discussion 274-5, 2001 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-11738682

RESUMO

BACKGROUND: Intraoperative magnetic resonance imaging (MRI) for guided biopsy or microsurgical resection of intracranial lesions is gaining broader acceptance. It is not known whether intraoperative MRI has the potential to detect hemorrhagic complications of these surgical procedures, because scientific research has so far focussed on the signal characteristics of less acute clots. It is the objective of this experimental study to investigate whether MRI can visualise intracerebral blood within minutes after its occurrence. METHODS: In 26 pigs, a frontal hematoma was produced by injecting autologous blood. Twenty pigs underwent MRI 30 minutes after injection, and 6 pigs within the first 10 minutes. MRI scans were performed on a 1.5T system. T1-weighted spin echo (SE), T2-weighted turbo spin echo (TSE), T2-weighted fluid attenuated inversion recovery (FLAIR), and T2-weighted gradient echo (GE) images were acquired. Depending on the differences of the signal intensities of the hematoma and the surrounding brain, the detectability of the hematoma was rated as good, fair, or poor. RESULTS: None of the induced hematomas were rated to be clearly visible on T1-weighted sequences. Six of the 26 hematomas (23%) were easily detectable on FLAIR sequences, 18 hematomas (69%) on T2-weighted TSE sequences, and 23 hematomas (88%) on the T2-weighted GE sequences. CONCLUSION: Extravasated blood can be identified with a high reliability within minutes after its occurrence on MRI provided that T2-weighted GE sequences are used for imaging. In conclusion, intraoperative MRI is not only of value for guidance of neurosurgical procedures, but also for immediate detection of hemorrhagic complications.


Assuntos
Encefalopatias/cirurgia , Hemorragia Cerebral/diagnóstico , Hematoma/diagnóstico , Complicações Intraoperatórias/diagnóstico , Imageamento por Ressonância Magnética , Animais , Encéfalo/patologia , Hemorragia Cerebral/etiologia , Hemorragia Cerebral/patologia , Hematoma/etiologia , Hematoma/patologia , Procedimentos Neurocirúrgicos/efeitos adversos , Suínos , Fatores de Tempo
17.
J Neuroophthalmol ; 21(2): 109-11, 2001 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-11450899

RESUMO

Behcet disease is a multisystemic, chronic, recurrent inflammatory disorder characterized as a triad of hypopyon uveitis, oral aphthae, and genital ulcers. Neurologic involvement in Behcet disease (neuro-Behcet) is common. Neuro-Behcet disease typically manifests late after disease onset, rarely coincides with ocular involvement, and often heralds a poor prognosis for final vision and survival. We present a case of neuro-Behcet disease with neurologic onset concomitant with systemic and ocular involvement that was responsive to treatment with interferon-alpha 2a.


Assuntos
Síndrome de Behçet/tratamento farmacológico , Encefalopatias/tratamento farmacológico , Interferon-alfa/uso terapêutico , Síndrome de Behçet/diagnóstico , Encefalopatias/diagnóstico , Humanos , Interferon alfa-2 , Imageamento por Ressonância Magnética , Masculino , Papiledema/diagnóstico , Papiledema/tratamento farmacológico , Proteínas Recombinantes
20.
Am J Orthod Dentofacial Orthop ; 118(1): 75-83, 2000 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-10893476

RESUMO

Juvenile rheumatoid arthritis is a disease characterized by chronic inflammation in one or more joints; it affects children and adolescents up to 18 years of age. This disease may cause significant skeletal joint destruction, and the temporomandibular joint, like other joints, may become severely affected resulting in aberrant mandibular growth, abnormal dentofacial development, and/or altered orofacial muscle function. Methotrexate is the most common remittive agent used in juvenile rheumatoid arthritis to modify the course of inflammatory destruction of peripheral joints. The purpose of this study was: (1) to evaluate the effect of methotrexate therapy on the prevalence of temporomandibular joint lesions and aberration in craniofacial development in children afflicted with juvenile rheumatoid arthritis; (2) to further examine the relationship between the temporomandibular joint/cephalometric findings and rheumatologic data (ie, age at onset, duration of disease); and (3) to evaluate further pauciarticular- and polyarticular-onset disease in juvenile rheumatoid arthritis and the prevalence of temporomandibular joint lesions and facial dysmorphology. The following information was obtained from 45 patients with juvenile rheumatoid arthritis: (1) routine rheumatologic clinical examination data; (2) anamnestic temporomandibular joint evaluation data; (3) clinical temporomandibular joint examination data; (4) lateral cephalometric measurement data; (5) posteroanterior cephalometric measurement data; and (6) individually corrected axial tomographic data. The results demonstrated the following: (1) radiographic evidence of condylar degeneration was apparent in 63% of all patients with juvenile rheumatoid arthritis with pauciarticular patients showing less temporomandibular involvement than polyarticular patients; (2) polyarticular juvenile rheumatoid arthritis patients receiving methotrexate showed less severe temporomandibular joint involvement than the polyarticular patients not receiving methotrexate; (3) the craniofacial structure was affected to a greater extent in the polyarticular form of the disease; (4) the craniomandibular index scores were significantly greater in the polyarticular group; (5) vertical height asymmetry and chin deviation were noted in more than 50% of the patients; and (6) there was a correlation between the severity of condylar lesions and cephalometric findings (ie, mandibular retroposition, posterior rotation, smaller ramus and mandibular dimensions) and the onset and duration of the disease. In conclusion, under the conditions of this study, methotrexate therapy was effective in minimizing temporomandibular joint destruction and craniofacial dysmorphology in juvenile rheumatoid arthritis patients with the polyarticular form of the disease.


Assuntos
Antirreumáticos/uso terapêutico , Artrite Juvenil/tratamento farmacológico , Côndilo Mandibular/patologia , Desenvolvimento Maxilofacial/efeitos dos fármacos , Metotrexato/uso terapêutico , Transtornos da Articulação Temporomandibular/tratamento farmacológico , Adolescente , Idade de Início , Antirreumáticos/farmacologia , Artrite Juvenil/complicações , Artrite Juvenil/fisiopatologia , Cefalometria , Criança , Progressão da Doença , Método Duplo-Cego , Assimetria Facial/etiologia , Feminino , Humanos , Masculino , Côndilo Mandibular/diagnóstico por imagem , Metotrexato/farmacologia , Radiografia , Amplitude de Movimento Articular , Estatísticas não Paramétricas , Transtornos da Articulação Temporomandibular/complicações , Transtornos da Articulação Temporomandibular/fisiopatologia
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