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1.
JBMR Plus ; 7(8): e10734, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37614304

RESUMO

A 71-year-old man was referred for evaluation of incidental generalized osteosclerosis. He was found to have a high bone mass (HBM) with an elevated lumbar spine bone mineral density (BMD) Z-score of +5.3. Over an 18-month period, his lumbar spine BMD measured by dual energy X-ray absorptiometry (DXA) had increased by +64% from 1.09 to 1.79 g/cm2 and femoral neck by +21% from 0.83 to 1.01 g/cm2. Biochemical markers of bone turnover were markedly increased (serum propeptide of type 1 collagen and urine telopeptides greater than 10-times normal). The high bone formation and increased skeletal calcium acquisition resulted in profound hypocalcemia (low serum calcium 1.88 mmol/L) and hypocalciuria (low urinary calcium <0.2 mmol/day). Positron emission tomography (PET) with 2-deoxy-2-[fluorine-18] fluoro-D-glucose (FDG) confirmed diffuse osteosclerosis without focal areas of abnormal FDG uptake in the skeleton or elsewhere to suggest either an underlying primary malignancy or metastatic disease. Bone biopsy showed markedly sclerotic woven and lamellar bone. The marrow space was devoid of typical bone cells and adipocytes and instead was filled by fibromyxoid stroma, infiltrated by small clusters of tumor cells. Bone histomorphometry and micro-computed tomography demonstrated an elevated trabecular bone volume and trabecular plate thickness. The bone disorder in this case is unique and raises the possibility of a new yet undefined novel anabolic paracrine factor (or factors) secreted by an adenocarcinoma of unknown primary that resulted in dramatic increases in BMD, HBM, and radiological osteosclerosis. The differential diagnosis and potential mechanisms responsible for the HBM are discussed. © 2023 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.

4.
Clin Case Rep ; 8(4): 739-744, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32274049

RESUMO

Curcumin, when used in a combination regimen in multiple myeloma patients, has comparable progression-free survival without the adverse effects of steroid-based combination therapies that is curcumin may be a viable alternative to corticosteroids in combination with an immunomodulatory drug or proteasome inhibitor.

5.
Clin Med Insights Blood Disord ; 10: 1179545X17738755, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29147080

RESUMO

BACKGROUND: Myelodysplastic syndrome (MDS) is a heterogeneous group of clonal stem cell disorders characterized by dysplastic and ineffective hematopoiesis and peripheral cytopenias. Elevated serum ferritin (SF) is often observed in nontransfused, lower risk MDS. It has been reported that ineffective erythropoiesis enhances iron absorption in MDS through downregulation of hepcidin and its prohormones such that SF rises. AIM: To determine the effect of 6-shogaol, a dehydration derivative of ginger, known to have hepatoprotective and chemotherapeutic activity, on 6 early-stage, transfusion-independent patients with MDS, 3 of whom had raised levels of SF. METHOD: Six patients with MDS with low or intermediate-1 subtypes, as defined by the International Prognostic Scoring System (IPSS), were recruited into the study and were administered 1 gel capsule daily containing 20 mg ginger extract standardized for 20% 6-shogaol. Blood and urine samples were collected and various markers monitored at regular intervals. RESULTS: 6-shogaol caused a decrease in SF levels in 3 of 6 patients with early MDS (50%) whose SF levels were elevated at the start of the study. Our findings suggest upregulation of hepcidin and its prohormones, possibly through an improvement in liver function. DISCUSSION: In light of the encouraging results in this small, investigative study, we are planning a larger study to confirm the beneficial effect of 6-shogaol in patients with raised ferritin levels due to ineffective erythropoiesis.

6.
Integr Cancer Ther ; 16(3): 255-257, 2017 09.
Artigo em Inglês | MEDLINE | ID: mdl-26674787

RESUMO

Clinical studies with patients with early hematological malignancies (ie, monoclonal gammopathy of undetermined significance, smoldering multiple myeloma, or stage 0/1 chronic lymphocytic leukemia) suggest that early intervention with curcumin, derived from the spice turmeric, may lead to prolonged survival and delay in progressive disease in some of these patients.


Assuntos
Linfócitos B/efeitos dos fármacos , Curcumina/farmacologia , Doenças Hematológicas/tratamento farmacológico , Linfócitos B/patologia , Curcuma/química , Progressão da Doença , Humanos
7.
Lancet ; 388(10052): 1408-1416, 2016 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-27544377

RESUMO

BACKGROUND: We hypothesised that vertebroplasty provides effective analgesia for patients with poorly controlled pain and osteoporotic spinal fractures of less than 6 weeks' duration. The effectiveness of vertebroplasty, using an adequate vertebral fill technique, in fractures of less than 6 weeks' duration has not been specifically assessed by previously published masked trials. METHODS: This was a multicentre, randomised, double-blind, placebo-controlled trial of vertebroplasty in four hospitals in Sydney, Australia. We recruited patients with one or two osteoporotic vertebral fractures of less than 6 weeks' duration and Numeric Rated Scale (NRS) back pain greater than or equal to 7 out of 10. We used an automated telephone randomisation service provided by the National Health and Medical Research Council to assign patients (1:1; stratified according to age, degree of vertebral compression, trauma, corticosteroid use, and hospital) to either vertebroplasty or placebo, immediately before the procedure. Patients received conscious sedation. Vertebroplasty was done with the adequate vertebral fill technique and the placebo procedure with simulated vertebroplasty. Follow-up was for 6 months. Outcome assessors and patients were masked to treatment allocation. The primary outcome was the proportion of patients with NRS pain below 4 out of 10 at 14 days post-intervention in the intention-to-treat population. This study is registered with ClinicalTrials.gov, number NCT01482793. FINDINGS: Between Nov 4, 2011, and Dec 5, 2014, 120 patients were enrolled. 61 patients were randomly assigned to vertebroplasty and 59 to placebo. 24 (44%) patients in the vertebroplasty group and 12 (21%) in the control group had an NRS pain score below 4 out of 10 at 14 days (between-group difference 23 percentage points, 95% CI 6-39; p=0·011). Three patients in each group died from causes judged unrelated to the procedure. There were two serious adverse events in each group, related to the procedure (vertebroplasty group) and the fracture (control group). INTERPRETATION: Vertebroplasty is superior to placebo intervention for pain reduction in patients with acute osteoporotic spinal fractures of less than 6 weeks' in duration. These findings will allow patients with acute painful fractures to have an additional means of pain management that is known to be effective. FUNDING: Education grant from CareFusion Corporation.


Assuntos
Método Duplo-Cego , Fraturas por Osteoporose , Fraturas por Compressão , Humanos , Medição da Dor , Resultado do Tratamento , Vertebroplastia
8.
Integr Cancer Ther ; 15(2): 183-9, 2016 06.
Artigo em Inglês | MEDLINE | ID: mdl-27154182

RESUMO

Hypothesis Prior studies on patients with early B-cell lymphoid malignancies suggest that early intervention with curcumin may lead to delay in progressive disease and prolonged survival. These patients are characterized by increased susceptibility to infections. Rice bran arabinoxylan (Ribraxx) has been shown to have immunostimulatory, anti-inflammatory, and proapoptotic effects. We postulated that addition of Ribraxx to curcumin therapy may be of benefit. Study design Monoclonal gammopathy of undetermined significance (MGUS)/smoldering multiple myeloma (SMM) or stage 0/1 chronic lymphocytic leukemia (CLL) patients who had been on oral curcumin therapy for a period of 6 months or more were administered both curcumin (as Curcuforte) and Ribraxx. Methods Ten MGUS/SMM patients and 10 patients with stage 0/1 CLL were administered 6 g of curcumin and 2 g Ribraxx daily. Blood samples were collected at baseline and at 2-month intervals for a period of 6 months, and various markers were monitored. MGUS/SMM patients included full blood count (FBC); paraprotein; free light chains/ratio; C-reactive protein (CRP)and erythrocyte sedimentation rate (ESR); B2 microglobulin and immunological markers. Markers monitored for stage 0/1 CLL were FBC, CRP and ESR, and immunological markers. Results Of 10 MGUS/SMM patients,5 (50%) were neutropenic at baseline, and the Curcuforte/Ribraxx combination therapy showed an increased neutrophil count, varying between 10% and 90% among 8 of the 10 (80%) MGUS/SMM patients. An additional benefit of the combination therapy was the potent effect in reducing the raised ESR in 4 (44%) of the MGUS/SMM patients. Conclusion Addition of Ribraxx to curcumin therapy may be of benefit to patients with early-stage B-cell lymphoid malignancies.


Assuntos
Curcumina/uso terapêutico , Leucemia Linfocítica Crônica de Células B/tratamento farmacológico , Gamopatia Monoclonal de Significância Indeterminada/tratamento farmacológico , Mieloma Múltiplo/tratamento farmacológico , Oryza/química , Xilanos/uso terapêutico , Idoso , Idoso de 80 Anos ou mais , Biomarcadores Tumorais/metabolismo , Proteína C-Reativa/metabolismo , Progressão da Doença , Feminino , Humanos , Leucemia Linfocítica Crônica de Células B/metabolismo , Leucemia Linfocítica Crônica de Células B/patologia , Linfócitos/efeitos dos fármacos , Linfócitos/metabolismo , Masculino , Pessoa de Meia-Idade , Gamopatia Monoclonal de Significância Indeterminada/metabolismo , Gamopatia Monoclonal de Significância Indeterminada/patologia , Mieloma Múltiplo/metabolismo , Mieloma Múltiplo/patologia , Proteínas do Mieloma/metabolismo
9.
Case Rep Hematol ; 2015: 910528, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26199769

RESUMO

Multiple myeloma (MM), smoldering myeloma (SMM), and monoclonal gammopathy of undetermined significance (MGUS) represent a spectrum of plasma cell dyscrasias (PCDs). Immunoglobulin light chain amyloidosis (AL) falls within the spectrum of these diseases and has a mortality rate of more than 80% within 2 years of diagnosis. Curcumin, derived from turmeric, has been shown to have a clinical benefit in some patients with PCDs. In addition to a clinical benefit in these patients, curcumin has been found to have a strong affinity for fibrillar amyloid proteins. We thus administered curcumin to a patient with laryngeal amyloidosis and smoldering myeloma and found that the patient has shown a lack of progression of his disease for a period of five years. This is in keeping with our previous findings of clinical benefits of curcumin in patients with plasma cell dyscrasias. We recommend further evaluation of curcumin in patients with primary AL amyloidosis.

10.
Am J Hematol ; 87(5): 455-60, 2012 May.
Artigo em Inglês | MEDLINE | ID: mdl-22473809

RESUMO

Monoclonal gammopathy of undetermined significance (MGUS) and smoldering multiple myeloma (SMM) represent useful models for studying multiple myeloma precursor disease, and for developing early intervention strategies. Administering a 4g dose of curcumin, we performed a randomised, double-blind placebo-controlled cross-over study, followed by an open-label extension study using an 8g dose to assess the effect of curcumin on FLC response and bone turnover in patients with MGUS and SMM. 36 patients (19 MGUS and 17 SMM) were randomised into two groups: one received 4g curcumin and the other 4g placebo, crossing over at 3 months. At completion of the 4g arm, all patients were given the option of entering an open-label, 8g dose extension study. Blood and urine samples were collected at specified intervals for specific marker analyses. Group values are expressed as mean ± 1 SD. Data from different time intervals within groups were compared using Student's paired t-test. 25 patients completed the 4g cross-over study and 18 the 8g extension study. Curcumin therapy decreased the free light-chain ratio (rFLC), reduced the difference between clonal and nonclonal light-chain (dFLC) and involved free light-chain (iFLC). uDPYD, a marker of bone resorption, decreased in the curcumin arm and increased on the placebo arm. Serum creatinine levels tended to diminish on curcumin therapy. These findings suggest that curcumin might have the potential to slow the disease process in patients with MGUS and SMM.


Assuntos
Antineoplásicos Fitogênicos/uso terapêutico , Curcumina/uso terapêutico , Gamopatia Monoclonal de Significância Indeterminada/tratamento farmacológico , Mieloma Múltiplo/prevenção & controle , Idoso , Idoso de 80 Anos ou mais , Aminoácidos/urina , Antineoplásicos Fitogênicos/administração & dosagem , Biomarcadores , Remodelação Óssea/efeitos dos fármacos , Creatinina/sangue , Estudos Cross-Over , Curcumina/administração & dosagem , Progressão da Doença , Método Duplo-Cego , Feminino , Humanos , Cadeias Leves de Imunoglobulina/análise , Masculino , Pessoa de Meia-Idade , Gamopatia Monoclonal de Significância Indeterminada/sangue , Gamopatia Monoclonal de Significância Indeterminada/urina , Proteínas do Mieloma/análise , Hormônio Paratireóideo/sangue , Resultado do Tratamento , Vitamina D/sangue
11.
Med J Aust ; 192(6): 334-7, 2010 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-20230351

RESUMO

We use vertebroplasty for patients with the most severe pain caused by osteoporotic vertebral fractures less than 6 weeks old, and have observed dramatic pain relief in this acute setting. A recent editorial in the Journal, written by the authors of two recent vertebroplasty trials, suggested that vertebroplasty is not an effective therapy for acute osteoporotic vertebral fractures. The trials described in the editorial sampled a very different patient cohort to the one that we treat with vertebroplasty. Our clinical experience and most of the published literature relating to the benefits of vertebroplasty are in striking contrast to the opinions presented in that editorial.


Assuntos
Dor nas Costas/cirurgia , Osteoporose/complicações , Publicações Periódicas como Assunto , Fraturas da Coluna Vertebral/cirurgia , Vertebroplastia , Austrália/epidemiologia , Dor nas Costas/diagnóstico , Dor nas Costas/etiologia , Humanos , Incidência , Imageamento por Ressonância Magnética , Osteoporose/diagnóstico , Seleção de Pacientes , Complicações Pós-Operatórias/epidemiologia , Fatores de Risco , Fraturas da Coluna Vertebral/complicações , Fraturas da Coluna Vertebral/diagnóstico
12.
Clin Cancer Res ; 15(18): 5917-22, 2009 Sep 15.
Artigo em Inglês | MEDLINE | ID: mdl-19737963

RESUMO

PURPOSE: To determine the effect of curcumin on plasma cells and osteoclasts in patients with MGUS. EXPERIMENTAL DESIGN: Twenty-six patients with MGUS were recruited into the study and administered 4 grams/day oral curcumin. Blood and urine samples were collected at specified visits after initiating therapy. Full blood count, B2 microglobulin, serum paraprotein, and immunoglobulin electrophoresis (IEPG and EPG) were determined for all patients at each visit. Serum calcium, 25 hydroxyvitamin D3, and bone-specific alkaline phosphatase were determined at baseline only. Urine, as a morning second-void sample, was collected at each visit for urinary N-telopeptide of type I collagen. RESULTS: Our results show that oral curcumin is able to decrease paraprotein load in a select group (i.e., those having a paraprotein level of >20 g/L) of patients with MGUS. Fifty percent (5 of 10) of these patients had a 12% to 30% reduction in their paraprotein levels, while on curcumin therapy. In addition, 27% of patients on curcumin had a >25% decrease in urinary N-telopeptide of type I collagen. CONCLUSION: Due to the possible progression of MGUS to multiple myeloma, the potential role of curcumin as a therapeutic intervention for MGUS patients warrants further investigation.


Assuntos
Osso e Ossos/efeitos dos fármacos , Colágeno/metabolismo , Curcumina/farmacologia , Curcumina/uso terapêutico , Paraproteinemias/tratamento farmacológico , Idoso , Idoso de 80 Anos ou mais , Biomarcadores/sangue , Biomarcadores/metabolismo , Biomarcadores/urina , Osso e Ossos/metabolismo , Colágeno/sangue , Colágeno/urina , Curcumina/administração & dosagem , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Paraproteinemias/sangue , Paraproteinemias/urina
14.
J Gerontol A Biol Sci Med Sci ; 64(5): 599-609, 2009 May.
Artigo em Inglês | MEDLINE | ID: mdl-19264957

RESUMO

BACKGROUND: The incidence and etiology of falls in patients following hip fracture remains poorly understood. METHODS: We prospectively investigated the incidence of, and risk factors for, recurrent and injurious falls in community-dwelling persons admitted for surgical repair of minimal-trauma hip fracture. Fall surveillance methods included phone calls, medical records, and fall calendars. Potential predictors of falls included health status, quality of life, nutritional status, body composition, muscle strength, range of motion, gait velocity, balance, walking endurance, disability, cognition, depression, fear of falling, self-efficacy, social support, physical activity level, and vision. RESULTS: 193 participants enrolled in the study (81 +/- 8 years, 72% women, gait velocity 0.3 +/- 0.2 m/s). We identified 227 falls in the year after hip fracture for the 178 participants with fall surveillance data. Fifty-six percent of participants fell at least once, 28% had recurrent falls, 30% were injured, 12% sustained a new fracture, and 5% sustained a new hip fracture. Age-adjusted risk factors for recurrent and injurious falls included lower strength, balance, range of motion, physical activity level, quality of life, depth perception, vitamin D, and nutritional status, and greater polypharmacy, comorbidity, and disability. Multivariate analyses identified older age, congestive heart failure, poorer quality of life, and nutritional status as independent risk factors for recurrent and injurious falls. CONCLUSIONS: Recurrent and injurious falls are common after hip fracture and are associated with multiple risk factors, many of which are treatable. Interventions should therefore be tailored to alleviating or reversing any nutritional, physiological, and psychosocial risk factors of individual patients.


Assuntos
Acidentes por Quedas/estatística & dados numéricos , Fraturas do Quadril/complicações , Dor Lombar/epidemiologia , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Incidência , Masculino , Recidiva , Fatores de Risco
15.
J Gerontol A Biol Sci Med Sci ; 64(5): 568-74, 2009 May.
Artigo em Inglês | MEDLINE | ID: mdl-19228788

RESUMO

BACKGROUND: Age-related hip fractures are associated with poor functional outcomes, resulting in substantial personal and societal burden. There is a need to better identify reversible etiologic predictors of suboptimal functional recovery in this group. METHODS: The Sarcopenia and Hip Fracture (SHIP) study was a 5-year prospective cohort study following community-dwelling older persons admitted to three Sydney hospitals for hip fracture. Information was collected at baseline, and 4 and 12 months, including health status, quality of life, nutritional status, body composition, muscle strength, range of motion, gait velocity, balance, walking endurance, disability, cognition, depression, fear of falling, self-efficacy, social support, physical activity level, vision, and fall-related data, with residential status, disability, and mortality reassessed at 5 years. RESULTS: 193 participants enrolled (81 +/- 8 years, 72% women). High levels of activities of daily living, disability and sedentariness were present prior to fracture. At admission, the cohort had high levels of chronic disease; 38% were depressed, 38% were cognitively impaired, and 26% had heart disease. Seventy-one percent of participants were sarcopenic, 58% undernourished, and 55% vitamin D deficient. Mobility, strength, and vision were severely impaired. There was little evidence that these comorbidities were either recognized or treated during hospitalization. Disability, sedentariness, malnutrition, and walking endurance predicted acute hospitalization length of stay. CONCLUSIONS: The complex comorbidity, pre-existing functional impairment, and sedentary behavior in patients with hip fracture suggest the need for thorough screening and targeting of potentially reversible impairments. Rehabilitation outcomes are likely to be highly dependent on amelioration of these highly prevalent accompaniments to hip fracture.


Assuntos
Fraturas do Quadril/complicações , Dor Lombar/complicações , Dor Lombar/etiologia , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Estudos Prospectivos , Medição de Risco , Fatores de Risco
16.
Am J Clin Nutr ; 86(4): 952-8, 2007 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-17921370

RESUMO

BACKGROUND: Thigh muscle mass and cross-sectional area (CSA) are useful indexes of sarcopenia and the response to treatment in older patients. Current criterion methods are computed tomography (CT) and magnetic resonance imaging. OBJECTIVE: The objective was to compare thigh muscle mass estimated by dual-energy X-ray absorptiometry (DXA), a less expensive and more accessible method, with thigh muscle CSA determined by CT in a group of elderly patients recovering from hip fracture. DESIGN: Midthigh muscle CSA (in cm(2)) was assessed from a 1-mm CT slice and midthigh muscle mass (g) from a 1.3-cm DXA slice in 30 patients (24 women) aged 81 +/- 8 y during 12 mo of follow-up. Fat-to-lean soft tissue ratios were calculated with each technique to permit direct comparison of a variable in the same units. RESULTS: Baseline midthigh muscle CSA was highly correlated with midthigh muscle mass (r = 0.86, P < 0.001) such that DXA predicted CT-determined CSA with an SEE of 10 cm(2) (an error of approximately 12% of the mean CSA value). CT- and DXA-determined ratios of midthigh fat to lean mass were similarly related (intraclass correlation coefficient = 0.87, P < 0.001). When data were expressed as the changes from baseline to follow-up, CT and DXA changes were weakly correlated (intraclass correlation coefficient = 0.51, P = 0.019). CONCLUSIONS: Assessment of sarcopenia by DXA midthigh slice is a potential low-radiation, accessible alternative to CT scanning of older patients. The errors inherent in this technique indicate, however, that it should be applied to groups of patients rather than to individuals or to evaluate the response to interventions.


Assuntos
Absorciometria de Fóton/métodos , Idoso Fragilizado , Avaliação Geriátrica , Músculo Esquelético/diagnóstico por imagem , Atrofia Muscular/diagnóstico , Absorciometria de Fóton/economia , Absorciometria de Fóton/normas , Idoso de 80 Anos ou mais , Envelhecimento , Feminino , Fraturas do Quadril/cirurgia , Humanos , Masculino , Sensibilidade e Especificidade , Coxa da Perna , Tomografia Computadorizada por Raios X/economia , Tomografia Computadorizada por Raios X/métodos , Tomografia Computadorizada por Raios X/normas
17.
Bone ; 40(3): 775-80, 2007 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-17141596

RESUMO

BACKGROUND: While fracture healing has been well characterised in long bones, there is scant data relating to this process in acute vertebral body fractures. AIM: To characterise the histological process of fracture healing in acute osteoporotic vertebral body fractures using qualitative and quantitative bone histomorphometry. SUBJECTS AND METHODS: Transpedicular bone biopsy was performed in patients undergoing percutaneous vertebroplasty. Undecalcified biopsy specimens were prepared from cores of cancellous bone harvested from vertebral bodies with MRI evidence of bone marrow oedema. These were analysed by light microscopy using grid analysis and defined using bone histomorphometry criteria. Normative data obtained from 5 age-matched volunteers without evidence of metabolic bone disease or osteoporosis was used for comparison. RESULTS: Adequate biopsy specimens were obtained in 72 of 90 patients (15 men and 57 women), mean age 75.6 years. All biopsies confirmed severe osteoporosis with reduced cancellous bone volume (mean of 13.5%; P<0.001 compared to controls). The timing of biopsies varied from 1 to 24 weeks (median of 6 weeks) after the fracture event. There were 4 stages of fracture callus healing observed: Stage I in 17 (24%) patients, Stage II in 16 (22%), Stage III in 22 (30%) and Stage IV in 17 (24%). An overlap between the various stages was evident with 55 (76%) patients demonstrating at least 2 or more of the stages of fracture healing in the same biopsy specimen. The time interval since fracture event was the most important predictor of the stage of the fracture callus (R=0.32; P<0.001). CONCLUSION: Our data demonstrates a mixed fracture callus with overlapping of the various stages of fracture healing. This suggests that individual vertebra may be susceptible to multiple fractures over the course of the healing process.


Assuntos
Consolidação da Fratura/fisiologia , Vértebras Lombares/lesões , Osteoporose/complicações , Fraturas da Coluna Vertebral/etiologia , Fraturas da Coluna Vertebral/patologia , Vértebras Torácicas/lesões , Idoso , Feminino , Humanos , Vértebras Lombares/patologia , Masculino , Vértebras Torácicas/patologia
18.
Med J Aust ; 184(3): 113-7, 2006 Feb 06.
Artigo em Inglês | MEDLINE | ID: mdl-16460295

RESUMO

OBJECTIVE: To assess the safety and efficacy of percutaneous vertebroplasty for the treatment of acute osteoporotic vertebral fractures. DESIGN: A prospective, non-randomised, "intention-to-treat" 2-year study. PATIENTS AND SETTING: 126 consecutive patients (39 men and 87 women, aged 51-95 years) with acute osteoporotic vertebral fractures presenting to St George Hospital from November 2000 to December 2002. They comprised 88 patients treated by percutaneous vertebroplasty and 38 by conservative therapy. MAIN OUTCOME MEASURES: Primary outcomes--changes in patients' pain score and level of function recorded at 24 hours, 6 weeks, 6-12 months and 24 months after therapy. Secondary outcomes--occurrence of new clinical or radiological vertebral fractures and survival at 2 years. RESULTS: Three minor complications (fractured pedicle and psoas muscle haemorrhage) occurred in the vertebroplasty group during the first year of the study. Outcomes in vertebroplasty-treated patients (60% reduction in visual analogue pain scores from 20 to 8; P < 0.001), a rapid return to normal function (29% improvement in physical functioning from 14 to 18; P < 0.001) and lower rates of hospitalisation (43% reduction in the mean number of hospital bed-days occupied) were better than those treated conservatively (P < 0.001 for the comparison of all variables at 24 hours). Lower pain scores persisted in the vertebroplasty-treated group at 6 weeks (P < 0.001), but no differences between the two groups were evident at 12 and 24 months. In the vertebroplasty-treated group compared with the control group, the rates of new vertebral fractures (clinically and by radiographic assessment) (hazard ratio, 1.13; 95% CI, 0.52-2.46; P = 0.76) and death (hazard ratio, 1.07; 95% CI, 0.42-2.76; P = 0.89) showed no significant difference. CONCLUSION: The analgesic benefit of percutaneous vertebroplasty and the low complication rates suggest that it is a useful therapy for acute painful osteoporotic vertebral fractures.


Assuntos
Fraturas Espontâneas/etiologia , Fraturas Espontâneas/terapia , Osteoporose/complicações , Fraturas da Coluna Vertebral/etiologia , Fraturas da Coluna Vertebral/terapia , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Procedimentos Ortopédicos , Estudos Prospectivos , Fatores de Tempo
19.
Med J Aust ; 183(1): 10-2, 2005 Jul 04.
Artigo em Inglês | MEDLINE | ID: mdl-15992330

RESUMO

AIM: To evaluate the efficacy and safety of an annual intramuscular injection of cholecalciferol for vitamin D deficiency. DESIGN: Prospective open-label study. PARTICIPANTS: Five men and 45 women (mean age 66.3 years) with vitamin D deficiency who were given a single therapeutic intramuscular injection of 600 000 IU (15 mg) cholecalciferol (vitamin D(3)). OUTCOME MEASURES: Serum levels of calcium, creatinine, 25-hydroxyvitamin D(3) (25OHD(3)) and parathyroid hormone, as well as early morning 2-hour urine calcium/creatinine excretion index. Specimens were collected at baseline and after 4 and 12 months of therapy. Data are reported as mean +/- 1 SD. RESULTS: Vitamin D deficiency was severe (< 12.5 nmol/L) in one participant, moderate (12.5-24 nmol/L) in 14, and mild (25-49 nmol/L) in 35. Twenty-four participants (48%) had secondary hyperparathyroidism. Following intramuscular cholecalciferol injection, serum 25OHD(3) levels normalised in all participants and remained above 50 nmol/L throughout the study. Serum 25OHD(3) levels were significantly higher at 4 months (114 +/- 35 nmol/L), and 12 months (73 +/- 13 nmol/L) compared with baseline (32 +/- 8 nmol/L) (P < 0.001), increasing by an average of 128% over the 12 months. There was a corresponding decrease in serum parathyroid hormone levels at 4 months (6 +/- 3 pmol/L) and at 12 months (5.2 +/- 3 pmol/L), with a 30% decrease at 12 months from baseline (7.4 +/- 4 pmol/L) (P < 0.01). Primary hyperparathyroidism was unmasked in one participant at 4 months and mild hypercalcaemia (serum calcium, < 2.70 mmol/L) was noted in two participants (4%) at 12 months. Serum creatinine levels remained normal in all participants throughout the study, while increases in 2-hour urine calcium/creatinine excretion index were seen in 10 participants (20%) at 12 months, three of whom had had elevated values at baseline. CONCLUSIONS: Once-yearly intramuscular cholecalciferol injection (600 000 IU) is effective therapy for vitamin D deficiency. While this therapy appears to be safe, the potential for developing hypercalciuria needs to be examined in a large randomised controlled trial.


Assuntos
Colecalciferol/administração & dosagem , Deficiência de Vitamina D/tratamento farmacológico , Adulto , Idoso , Idoso de 80 Anos ou mais , Cálcio/urina , Creatinina/sangue , Creatinina/urina , Relação Dose-Resposta a Droga , Esquema de Medicação , Feminino , Humanos , Hiperparatireoidismo Secundário/sangue , Hiperparatireoidismo Secundário/tratamento farmacológico , Hiperparatireoidismo Secundário/etiologia , Injeções Intramusculares , Masculino , Pessoa de Meia-Idade , Hormônio Paratireóideo/sangue , Estudos Prospectivos , Resultado do Tratamento , Vitamina D/análogos & derivados , Vitamina D/sangue , Deficiência de Vitamina D/classificação , Deficiência de Vitamina D/complicações , Deficiência de Vitamina D/metabolismo
20.
Aust Fam Physician ; 34(3): 151-4, 2005 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-15799664

RESUMO

BACKGROUND: Hypoglycaemia is a common adverse effect of insulin treatment in individuals with diabetes, potentially leading to cognitive impairment, altered levels of consciousness and delayed reactions. If this happens while driving a motor vehicle, a disastrous accident may ensue. OBJECTIVE: This article describes the clinical scenarios of five men with type 1 diabetes who were involved in motor vehicle accidents due to severe hypoglycaemia and discusses the potential risk factors for hypoglycaemia. DISCUSSION: Reference is made to the specific management guidelines set out by the Australian Driver Licensing Authorities for individuals with diabetes. Sometimes, important ethical decisions can be difficult when managing diabetic individuals who fail to comply with therapy or who suffer hypoglycaemia related events and continue to drive a motor vehicle.


Assuntos
Acidentes de Trânsito , Condução de Veículo , Diabetes Mellitus Tipo 1/complicações , Hipoglicemia/etiologia , Adolescente , Adulto , Idoso , Diabetes Mellitus Tipo 1/dietoterapia , Diabetes Mellitus Tipo 1/tratamento farmacológico , Medicina de Família e Comunidade/métodos , Humanos , Hipoglicemia/prevenção & controle , Insulina/uso terapêutico , Masculino , Pessoa de Meia-Idade , Cooperação do Paciente , Papel do Médico
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