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1.
J Oral Rehabil ; 50(11): 1181-1184, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37335244

RESUMO

BACKGROUND: Although the association between tinnitus and temporo-mandibular disorders (TMD) has been frequently reported, their rate of association in the literature shows a great variability. OBJECTIVE: We aimed to investigate the prevalence of TMD in patients with somatosensory tinnitus and, vice versa, the occurrence of somatosensory tinnitus in patients with TMD. METHODS: The study included patients with somatosensory tinnitus (audiological group) and patients with TMD (stomatological group), evaluated at the audiologic and stomatologic clinics of the Policlinic Hospital of Milan, Italy. Common causes of tinnitus, such as hearing and neurological disorders, were excluded. A cervicogenic somatic tinnitus was also ruled out. Different TMD symptoms, including joint noise and joint pain, were considered. The collected data were analysed using descriptive statistical methods, and the Pearson's Chi-squared test was performed to study the prevalence of the different symptoms by clinical groups. RESULTS: Audiological group included 47 patients with somatosensory tinnitus. Overall, TMD was diagnosed in 46 patients (97.8%), including TMJ noise in 37 (78.7%), clenching in 41 (87.2%) and pain in 7 (14.8%) patients. Stomatological group included 50 patients with TMD, including joint noise in 32 (64.0%), clenching in 28 (56.0%) and TMJ pain in 42 (84.0%) patients. A somatosensory tinnitus was diagnosed in 12 (24.0%) patients. CONCLUSION: Our study showed a high prevalence of TMD in patients with tinnitus, as well as a not uncommon occurrence of tinnitus in patients presenting with TMD. The distribution of TMD symptoms, such as joint noise, and joint pain was different between the two groups.


Assuntos
Transtornos da Articulação Temporomandibular , Zumbido , Humanos , Zumbido/epidemiologia , Zumbido/etiologia , Transtornos da Articulação Temporomandibular/complicações , Transtornos da Articulação Temporomandibular/epidemiologia , Transtornos da Articulação Temporomandibular/diagnóstico , Dor/complicações , Artralgia/complicações , Itália/epidemiologia
2.
J Hepatol ; 65(1): 57-65, 2016 07.
Artigo em Inglês | MEDLINE | ID: mdl-26988732

RESUMO

BACKGROUND & AIMS: Acute-on-chronic liver failure (ACLF) is a syndrome that occurs in cirrhosis characterized by organ failure(s) and high mortality rate. There are no biomarkers of ACLF. The LCN2 gene and its product, neutrophil gelatinase-associated lipocalin (NGAL), are upregulated in experimental models of liver injury and cultured hepatocytes as a result of injury by toxins or proinflammatory cytokines, particularly Interleukin-6. The aim of this study was to investigate whether NGAL could be a biomarker of ACLF and whether LCN2 gene may be upregulated in the liver in ACLF. METHODS: We analyzed urine and plasma NGAL levels in 716 patients hospitalized for complications of cirrhosis, 148 with ACLF. LCN2 expression was assessed in liver biopsies from 29 additional patients with decompensated cirrhosis with and without ACLF. RESULTS: Urine NGAL was markedly increased in ACLF vs. no ACLF patients (108(35-400) vs. 29(12-73)µg/g creatinine; p<0.001) and was an independent predictive factor of ACLF; the independent association persisted after adjustment for kidney function or exclusion of variables present in ACLF definition. Urine NGAL was also an independent predictive factor of 28day transplant-free mortality together with MELD score and leukocyte count (AUROC 0.88(0.83-0.92)). Urine NGAL improved significantly the accuracy of MELD in predicting prognosis. The LCN2 gene was markedly upregulated in the liver of patients with ACLF. Gene expression correlated directly with serum bilirubin and INR (r=0.79; p<0.001 and r=0.67; p<0.001), MELD (r=0.68; p<0.001) and Interleukin-6 (r=0.65; p<0.001). CONCLUSIONS: NGAL is a biomarker of ACLF and prognosis and correlates with liver failure and systemic inflammation. There is remarkable overexpression of LCN2 gene in the liver in ACLF syndrome. LAY SUMMARY: Urine NGAL is a biomarker of acute-on-chronic liver failure (ACLF). NGAL is a protein that may be expressed in several tissues in response to injury. The protein is filtered by the kidneys due to its small size and can be measured in the urine. Ariza, Graupera and colleagues found in a series of 716 patients with cirrhosis that urine NGAL was markedly increased in patients with ACLF and correlated with prognosis. Moreover, gene coding NGAL was markedly overexpressed in the liver tissue in ACLF.


Assuntos
Insuficiência Hepática Crônica Agudizada , Injúria Renal Aguda , Biomarcadores , Humanos , Lipocalina-2 , Cirrose Hepática , Prognóstico
3.
Int J Immunopathol Pharmacol ; 26(1): 189-97, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23527721

RESUMO

UNLABELLED: Fibrinogen-based sealants have been used to improve hemostasis after total hip replacement (THR) with conflicting results. We therefore conducted a double-blind randomized controlled trial to determine whether the commercially available fibrin sealant Quixil is effective in reducing the volume of red blood cell transfusions, postoperative blood loss and postoperative hemoglobin drop. Patients with coxarthrosis scheduled for primary cementless THR, were enrolled in a single hospital setting and randomized to either a fibrin sealant group (n=35) or a negative control group (n=35). The surgeon was blind to group allocation until the moment of fibrin application, while the cardiologist determining the need for transfusions remained blind throughout the intervention. In the fibrin sealant group, less blood was lost in the first 48 hours (median, 125 vs 200 ml), fewer patients required allogeneic blood transfusion (1 vs 6 in the control group), and fewer total units of allogeneic blood were transfused (2 vs 12). These differences, however, were not significant partly due to confounding from the use of autologous transfusion of predeposited blood (according to a more liberal regime) and intraoperative autologous blood reinfusion in some patients of both groups. Excluding these last individuals from analysis, no remaining patient of the fibrin sealant group had an allogeneic blood transfusion that, instead, was carried out on 5 patients (23.8 percent) of the control group (p=0.048). Overall postoperative hemoglobin drop from baseline was significantly less in the fibrin-treated group on day 7 (mean, 3.5 vs 4.5 g/dl; p=0.02). No adverse events were associated with fibrin treatment. These results strengthen the evidence in support of the safety and efficacy of the use of fibrin sealant in improving hemostasis after THR. CLINICAL TRIAL REGISTRATION: EudraCT 2008-002024-28.


Assuntos
Artroplastia de Quadril , Adesivo Tecidual de Fibrina/uso terapêutico , Hemostáticos/uso terapêutico , Osteoartrite do Quadril/sangue , Adulto , Idoso , Idoso de 80 Anos ou mais , Método Duplo-Cego , Feminino , Hemostasia/efeitos dos fármacos , Humanos , Masculino , Pessoa de Meia-Idade , Osteoartrite do Quadril/tratamento farmacológico , Osteoartrite do Quadril/cirurgia
4.
Front Pediatr ; 11: 1224620, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37609362

RESUMO

Purpose: Prone cross-table lateral x-ray (CTLxR) and colostogram aid surgical planning for anorectal malformations (ARMs) without perineal fistulas. We suggest objective imaging tools to classify ARMs. Methods: Three observers prospectively evaluated CTLxR and colostograms of male ARM patients (2012-2022) without perineal fistulas. The level of the rectal pouch was estimated with pubococcygeal (PC) and ischiatic (I) lines. On CTLxR, we described the "pigeon sign", defined as the rectal pouch ending with a beak-like image, suspicious for a rectourinary fistula. ARM was defined as rectobulbar when the rectal pouch was below the I line, rectoprostatic when between PC and I lines, and rectovesical when above the PC line. Concordance was assessed with Fleiss' kappa. Sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of the "pigeon sign" were calculated. Results: Thirteen patients were included in this study. The interobserver agreement on CTLxR was 69.2% (k = 0.54) on pouch ending, 84.6% (k = 0.69) on the "pigeon sign", and 76.9% (k = 0.69) on diagnosis; concordance between observers and intraoperative diagnosis was 66.6% (k = 0.56). The "pigeon sign" had 75% sensitivity, 100% specificity, 100% PPV, and 50% NPV. The interobserver agreement on colostograms was 84.6% (k = 0.77) on pouch ending and 89.7% (k = 0.86) on diagnosis; concordance between observers and intraoperative diagnosis was 92.3% (k = 0.90). Conclusion: PC and I lines and the "pigeon sign" are useful tools in examining CTLxR and colostograms. Adequate CTLxR interpretation may modify surgical strategy.

5.
G Ital Dermatol Venereol ; 146(2): 79-84, 2011 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-21505392

RESUMO

AIM: Mohs micrographic surgery is the treatment of choice for basal cell carcinomas (BCCs) at high risk for local recurrence. This procedure is scarcely employed in Italy, even when it appears necessary, for different causes, including high costs, organization problems, or low professional experience with the technique. Aim of this study is to report our experience with the "surgical margin marking", as alternative to standard Mohs micrographic surgery in the management of high-risk BCCs of the head and neck region. METHODS: A retrospective analysis on 102 (64 males and 38 females; mean age: 66.8 years; median: 68 years; range: 53-87 years) of 208 patients with high-risk basal cell carcinomas of the head and neck region, submitted to surgical margin marking has been made. All cases had completed a 3-year follow-up. Primary tumours were 52 (51%), recurrent tumours were 50 (49%). RESULTS: The mean number of micrographic surgery stages for a complete tumour clearance was 1.65 (range: 1-4 stages). In 47% (N.=49) of cases the tumours were removed by a single stage, while in 42.1% (N.=43) of patients two stages were required. Only 2 patients (2%) showed recurrences during a mean follow-up of 61.2 months (median: 62 months; range: 37-84 months). CONCLUSION: Our experience supports the effectiveness of the surgical margin marking technique in the treatment of high-risk basal cell carcinomas of the cephalic region. It may represent an alternative approach to Mohs micrographic surgery in dermatologic departments of many hospitals, where standard Mohs micrographic surgery is more difficult to perform.


Assuntos
Carcinoma Basocelular/cirurgia , Neoplasias de Cabeça e Pescoço/cirurgia , Microcirurgia , Recidiva Local de Neoplasia/cirurgia , Neoplasias Cutâneas/cirurgia , Idoso , Idoso de 80 Anos ou mais , Carcinoma Basocelular/patologia , Feminino , Neoplasias de Cabeça e Pescoço/patologia , Humanos , Itália , Masculino , Microcirurgia/métodos , Pessoa de Meia-Idade , Cirurgia de Mohs , Recidiva Local de Neoplasia/patologia , Estadiamento de Neoplasias , Estudos Retrospectivos , Neoplasias Cutâneas/patologia , Análise de Sobrevida , Resultado do Tratamento
6.
J Pediatr Urol ; 15(5): 514.e1-514.e6, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31285138

RESUMO

BACKGROUND: Primary vesicoureteral reflux (VUR) is the most common urological anomaly in children. Voiding cystourethrography (VCUG) is considered the reference standard for the diagnosis of VUR. Even if it is a secure and standardized technique, it is still an invasive method, hence, the effort to find an alternative method to diagnose VUR. The aim of the study is to evaluate the diagnostic accuracy of 99mTC-MAG3 scintigraphy with indirect cystography in detecting VUR and to estimate any interobserver variability in 99mTC-MAG3 scintigraphy interpretation. METHODS: The authors retrospectively reviewed all the pediatric patients who underwent both a VCUG and a 99mTC-MAG3 renal scintigraphy at the study institution between 2012 and 2016. RESULTS: A total of 86 children (and 168 renal units) were included. MAG3 scan revealed a sensitivity of 54% and a specificity of 90% with positive predictive value of 79% and negative predictive value of 73%. Each MAG3 scintigraphy was then independently and blindly evaluated by a pediatric urologist and two nuclear physicians. After revision, the concordance between VCUG and MAG3 in reflux cases dropped from 54% to 27% (on average), and the reviewers reclassified most examinations as non-conclusive. CONCLUSIONS: 99mTC-MAG3 renal scintigraphy with indirect cystography showed low sensitivity in detecting VUR of any grade and cannot, therefore, be proposed as completely alternative to VCUG in the diagnosis of VUR. Moreover, MAG3 scintigraphy interpretation for the diagnosis of VUR has a very high interobserver variability, mostly because of the lack of a correct and complete voiding phase.


Assuntos
Cistografia/métodos , Cintilografia/métodos , Ácido Dimercaptossuccínico Tecnécio Tc 99m/farmacologia , Bexiga Urinária/diagnóstico por imagem , Refluxo Vesicoureteral/diagnóstico , Pré-Escolar , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Curva ROC , Compostos Radiofarmacêuticos/farmacologia , Estudos Retrospectivos , Micção , Urodinâmica/fisiologia , Refluxo Vesicoureteral/fisiopatologia
7.
Nephron Clin Pract ; 108(2): c141-7, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18259100

RESUMO

BACKGROUND: Secondary hyperparathyroidism remains a serious problem in hemodialysis patients. The therapy of renal osteodystrophy is mainly based on lowering phosphate levels and administering vitamin D(3) metabolites and calcimimetic agents. METHODS: An observational, prospective, multicenter study was made to evaluate the efficacy of alfacalcidol in 185 chronic hemodialysis patients with secondary hyperparathyroidism (i-PTH >150 pg/ml). Patients with a CaxP product >70 were excluded. Intermittent therapy with intravenous alfacalcidol was observed for 6 months. RESULTS: The mean dose of alfacalcidol per week was 3.63 +/- 1.71 microg. Patients previously treated with vitamin D(3) metabolites needed higher doses of alfacalcidol (4.0 +/- 1.7 vs. 3.2 +/- 1.6; p = 0.01). Only 50.8% of the patients had received vitamin D(3) metabolites prior to the start of the study and at baseline they had higher i-PTH levels (600.3 +/- 360.5 vs. 489.9 +/- 292.6, p = 0.02). i-PTH levels decreased from 546 +/- 332.6 to 332.4 +/- 274.5 pg/ml (p < 0.001). 60.5% of the patients had i-PTH < 300 pg/ml at the last observation. Serum calcium increased (9.4 +/- 0.8 to 9.97 +/- 1.0 mg/l, p < 0.001). CONCLUSION: Alfacalcidol reduced the levels of i-PTH and produced a slight increase in serum calcium and phosphate levels. In mild or moderate hyperparathyroidism the doses needed were lower than in severe hyperparathyroidism.


Assuntos
Hidroxicolecalciferóis/uso terapêutico , Hiperparatireoidismo Secundário/tratamento farmacológico , Falência Renal Crônica/terapia , Diálise Renal/efeitos adversos , Idoso , Análise de Variância , Relação Dose-Resposta a Droga , Esquema de Medicação , Feminino , Seguimentos , Humanos , Hiperparatireoidismo Secundário/etiologia , Infusões Intravenosas , Falência Renal Crônica/complicações , Falência Renal Crônica/diagnóstico , Masculino , Pessoa de Meia-Idade , Hormônio Paratireóideo/sangue , Estudos Prospectivos , Valores de Referência , Diálise Renal/métodos , Medição de Risco , Resultado do Tratamento
10.
Int J Clin Pharmacol Ther ; 44(9): 443-8, 2006 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-16995333

RESUMO

OBJECTIVE: A number of clinical reports have revealed a link between the use of alcohol and the onset or exacerbation of migraine headaches. This open, randomized, crossover, single-dose, phase I clinical trial evaluated the possible pharmacokinetic interactions between a single oral dose of almotriptan 12.5 mg, a 5-HT(1B/1D receptor agonist for the acute treatment of migraine, and ethanol in 16 healthy male volunteers. Tolerability and safety of this combined treatment were also assessed. METHODS: Subjects received a crossed oral dose of almotriptan (12.5 mg) with and without concomitant alcohol intake (target plasma concentration 0.8 g/kg) in two different treatment periods. Almotriptan was administered alone, while ethanol was diluted with orange juice, which was also given to the control group. There was a washout period of 7 days between treatments. Plasma levels of almotriptan were analyzed using a sensitive and specific liquid chromatographic-tandem mass spectrometry method. RESULTS: The 90% non-parametric confidence interval for the median t(max) of almotriptan plus ethanol compared to almotriptan alone (0.61/2.72) was outside the acceptable range (0.70 - 1.30), demonstrating that concomitant ethanol administration slightly increases the variability of absorption of almotriptan 12.5 mg. In contrast, the main bioavailability criteria parameters, C(max) and AUC, which show the rate and extent of systemic absorption, were not affected by alcohol ingestion. Therefore, it is unlikely that concomitant ethanol intake would produce clinically relevant differences in the therapeutic effect of almotriptan at the dose studied here. Tolerability of treatments was good throughout the entire study period. CONCLUSIONS: Almotriptan 12.5 mg, with or without concomitant alcohol ingestion, showed similar plasma concentrations after a single dose in healthy volunteers with no clinically relevant drug-to-drug interactions.


Assuntos
Etanol/farmacologia , Agonistas do Receptor de Serotonina/farmacocinética , Triptaminas/farmacocinética , Adulto , Disponibilidade Biológica , Estudos Cross-Over , Humanos , Masculino , Agonistas do Receptor de Serotonina/sangue , Triptaminas/sangue
11.
Cancer Lett ; 378(2): 120-30, 2016 08 10.
Artigo em Inglês | MEDLINE | ID: mdl-27181379

RESUMO

BAP1 germline mutations predispose to a cancer predisposition syndrome that includes mesothelioma, cutaneous melanoma, uveal melanoma and other cancers. This co-occurrence suggests that these tumors share a common carcinogenic pathway. To evaluate this hypothesis, we studied 40 Italian families with mesothelioma and/or melanoma. The probands were sequenced for BAP1 and for the most common melanoma predisposition genes (i.e. CDKN2A, CDK4, TERT, MITF and POT1) to investigate if these genes may also confer susceptibility to mesothelioma. In two out of six families with both mesothelioma and melanoma we identified either a germline nonsense mutation (c.1153C > T, p.Arg385*) in BAP1 or a recurrent pathogenic germline mutation (c.301G > T, p.Gly101Trp) in CDKN2A. Our study suggests that CDKN2A, in addition to BAP1, could be involved in the melanoma and mesothelioma susceptibility, leading to the rare familial cancer syndromes. It also suggests that these tumors share key steps that drive carcinogenesis and that other genes may be involved in inherited predisposition to malignant mesothelioma and melanoma.


Assuntos
Biomarcadores Tumorais/genética , Códon sem Sentido , Inibidor de Quinase Dependente de Ciclina p18/genética , Mutação em Linhagem Germinativa , Melanoma/genética , Mesotelioma/genética , Neoplasias Cutâneas/genética , Proteínas Supressoras de Tumor/genética , Ubiquitina Tiolesterase/genética , Adolescente , Adulto , Idoso , Biomarcadores Tumorais/análise , Inibidor p16 de Quinase Dependente de Ciclina , Inibidor de Quinase Dependente de Ciclina p18/análise , Análise Mutacional de DNA , Bases de Dados Factuais , Feminino , Estudos de Associação Genética , Predisposição Genética para Doença , Hereditariedade , Humanos , Imuno-Histoquímica , Itália , Masculino , Melanoma/química , Melanoma/patologia , Mesotelioma/química , Mesotelioma/patologia , Pessoa de Meia-Idade , Linhagem , Fenótipo , Fatores de Risco , Neoplasias Cutâneas/química , Neoplasias Cutâneas/patologia , Proteínas Supressoras de Tumor/análise , Ubiquitina Tiolesterase/análise , Adulto Jovem
12.
J Am Coll Cardiol ; 34(7): 1947-53, 1999 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-10588208

RESUMO

OBJECTIVES: The study assessed whether varying accessibility of patients with unstable angina (UA) to coronary angiography and revascularization determined differing usages and outcomes. BACKGROUND: The appropriate use rate of coronary angiography and revascularization procedures in UA remains to be established. METHODS: A total of 791 consecutive patients with UA without previous acute myocardial infarction (AMI) admitted to four reference teaching hospitals (one with tertiary facilities) were followed for six months. End points were six-month mortality and readmission for AMI, UA, heart failure, or severe ventricular arrhythmias. RESULTS: Patients admitted to the tertiary hospital were 3.27 (95% confidence interval [CI] 2.32 to 4.62) times more likely to undergo coronary angiography after adjustment for comorbidity and severity than were those admitted to nontertiary facilities (overall six-month use rates 70.1% and 48.3%, respectively). Revascularization procedures were performed in 36.2% of patients in the tertiary hospital and 24.6% in the others (p = 0.0007); adjusted relative risk (RR) 2.37 (95% CI 1.55 to 3.63). Median delay for urgent coronary angiography was shorter in the tertiary hospital (24 h vs. 4 days, p < 0.0002). Six-month mortality and readmission rates were similar in tertiary and nontertiary hospitals: 3.9% versus 5.3% and 16.9% versus 21.2%, respectively. Adjusted RR of death or readmission for the nontertiary hospitals was 1.23 (95% CI 0.57 to 2.67). CONCLUSIONS: The use of coronary angiography and revascularization procedures in UA patients with no previous AMI is higher in tertiary than in nontertiary hospitals, but the more selective use of these procedures in nontertiary centers does not imply worse outcome.


Assuntos
Angina Instável/terapia , Angioplastia Coronária com Balão/estatística & dados numéricos , Angiografia Coronária , Ponte de Artéria Coronária/estatística & dados numéricos , Recursos em Saúde/estatística & dados numéricos , Idoso , Idoso de 80 Anos ou mais , Angina Instável/diagnóstico por imagem , Angina Instável/etiologia , Eletrocardiografia , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/complicações , Admissão do Paciente/estatística & dados numéricos , Readmissão do Paciente/estatística & dados numéricos , Estudos Retrospectivos , Resultado do Tratamento
13.
Transplant Proc ; 37(6): 2541-3, 2005.
Artigo em Inglês | MEDLINE | ID: mdl-16182737

RESUMO

OBJECTIVE: The objective of this study was to compare the accuracy of 2 variables: pulmonary artery occlusion pressure (PAOP) and right ventricular end diastolic volume index (RVEDVI) as predictors of the hemodynamic response to fluid challenge as well as definition of the overall correlation between RVEDVI and change in PAOP, right ventricular ejection fraction (RVEF), central venous pressure (CVP), and determination of the right ventricular function during orthotopic liver transplantation. MATERIALS AND METHODS: A modified pulmonary artery catheter equipped with a fast response thermistor was used to determine RVEF, allowing calculation of RVEF end-diastolic volume index (EDVI, as the ratio of stroke index [SI] to EF). The above-mentioned hemodynamic measures were taken in 4 phases: T0, after induction of anesthesia; T1, during anhepatic phase; T2, 30' after graft reperfusion; and T3, at the end of surgery. RESULTS: The variation of the REF value was 36 +/- 4% and 39 +/- 6%. Linear regression analysis showed a significant correlation between RVEDVI (range, 133 +/- 33-145 +/- 40 mL/m(2)) and stroke volume index (SVI) in each phase (r(2) = 0.49, P < .01; r(2) = 0.57, P < .01) at T0 and T1, respectively, and at T2 and T3 (r(2) = 0.51, P < .01; r(2) = 0.44, P < .01), respectively. No significant variations in the linear regression analysis between RVEDVI, PAOP, CVP, and RVEF were observed. No relationship was found between PAOP (range, 10 +/- 2-6 +/- 2 mm Hg) and SVI. CONCLUSION: RVEDVI may be the best clinical estimate of right ventricular preload. In fact, minor changes of RVEF have been recorded, confirming that RV function was not altered during uncomplicated orthotopic liver transplantation.


Assuntos
Transplante de Fígado/métodos , Disfunção Ventricular Direita/complicações , Função Ventricular Direita , Adulto , Diástole , Feminino , Frequência Cardíaca , Ventrículos do Coração/anatomia & histologia , Hemodinâmica , Hepatite C/cirurgia , Humanos , Complicações Intraoperatórias/epidemiologia , Cirrose Hepática/etiologia , Cirrose Hepática/cirurgia , Masculino , Pessoa de Meia-Idade , Monitorização Intraoperatória , Valor Preditivo dos Testes
14.
Bone ; 27(1): 123-8, 2000 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-10865219

RESUMO

To compare the effects of sodium fluoride and etidronate in severe postmenopausal osteoporosis, we conducted a 3 year, prospective, trial in 118 postmenopausal osteoporotic women with at least one vertebral fracture, who were randomly assigned to receive sodium fluoride (25 mg twice daily, as enteric-coated tablets) plus calcium (1000 mg/day) or intermittent etidronate (400 mg/day for 14 days) followed by calcium (1000 mg/day for 76 days). Lateral spine X-ray films and dual-energy X-ray absorptiometry (DXA) measurements of the lumbar spine and proximal femur were performed at enrollment and yearly. Nonvertebral fractures were recorded every 6 months. Thirty-one women in the fluoride group and 47 in the etidronate group completed the trial. At 36 months, the mean change from baseline of the lumbar bone density in the fluoride group was 8.5 +/- 2.04% (p = 0.001) and in the etidronate group was of 3.6 +/- 0. 84% (p < 0.001). The changes in the fluoride group were significantly higher than in the etidronate group (p = 0.01). Both groups showed nonsignificant changes in femoral neck bone density. There was no significant difference between groups in the cumulative proportion of women with new vertebral fractures, with an incidence in the fluoride group of 16% vs. 17% in the etidronate group. However, the number of new vertebral fractures was significantly lower in the fluoride group (6 fractures) than in the etidronate group (19 fractures) (p = 0.05). The number of patients with nonvertebral fractures was similar in both groups. A high incidence of side effects, mainly gastrointestinal symptoms and lower extremity pain syndrome, was observed in the fluoride group. Etidronate was well tolerated. We conclude that, in women with severe osteoporosis, although sodium fluoride is more favorable than cyclical etidronate for increasing lumbar bone mass, no differences were observed in the incidence of fractures.


Assuntos
Ácido Etidrônico/administração & dosagem , Osteoporose Pós-Menopausa/tratamento farmacológico , Fluoreto de Sódio/administração & dosagem , Administração Oral , Idoso , Densidade Óssea/efeitos dos fármacos , Feminino , Humanos , Pessoa de Meia-Idade , Fatores de Tempo , Resultado do Tratamento
15.
Am J Cardiol ; 84(9): 963-9, 1999 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-10569647

RESUMO

The aim of this study was to assess the clinical course of unstable angina and the prognostic value of clinical and electrocardiographic variables measured during admission in a prospective, multicenter cohort study with 6-month follow-up. The population corresponds to 4 general teaching hospitals in Catalonia, Spain. The clinical course was analyzed in 839 consecutive patients aged up to 80 years with primary unstable angina, without myocardial infarction or previous coronary bypass. The main outcome measures were cardiac mortality and nonfatal myocardial infarction. Patients involved in the present analysis belonged to the Resources Used in Acute Coronary Syndromes and Delays in Treatment (RESCATE) study. Six-month overall mortality, cardiac mortality, and nonfatal myocardial infarction rates were 4.6%, 4.1%, and 3.9%, respectively. Six-month cardiac mortality or myocardial infarction rate did not differ among clinical forms of presentation. Peripheral artery disease (RR 3.5, 95% confidence interval [CI] 1.88 to 6.50, p = 0.0001), ST-T-wave electrocardiographic changes on admission (RR 2.22, 95% CI 1.13 to 4.36, p = 0.0203), and age >65 years (RR 1.74, 95% CI 1.04 to 2.91, p = 0.0356) independently predicted 6-month cardiac mortality or nonfatal myocardial infarction. Their positive predictive values were 21%, 10%, and 11%, respectively, whereas their negative predictive value was > or = 93% in all cases. Prevalences were 9%, 70%, and 41%, respectively. In this prospective study, patients with unstable angina without prior myocardial infarction have a relatively low, although not negligible, 6-month severe complication rate. Stratification risk can easily be established with clinical and electrocardiographic characteristics measured during admission. Their absence almost rules out future adverse events, while their presence does not necessarily imply bad prognosis.


Assuntos
Angina Instável/mortalidade , Causas de Morte , Infarto do Miocárdio/mortalidade , Admissão do Paciente/estatística & dados numéricos , Adulto , Idoso , Idoso de 80 Anos ou mais , Angiografia Coronária , Eletrocardiografia , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/diagnóstico , Prognóstico , Estudos Prospectivos , Medição de Risco , Espanha , Análise de Sobrevida
16.
Clin Biochem ; 31(8): 647-51, 1998 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-9876897

RESUMO

Fibrinogen is the major ligand of platelet glycoprotein IIb/IIIa platelet receptor. Genes coding for platelet fibrinogen receptor glycoprotein IIb/IIIa are polymorphic. The PLA alloantigen has two antigenic determinants, PLA1 and PLA2, located in a 17-23 kD fragment of glycoprotein IIIa. We analyzed whether PLA genotype has any effect on plasma fibrinogen concentration and investigated if the effect has different magnitude in myocardial infarction patients compared with subjects free of angina or myocardial infarction. One hundred sixteen consecutive patients who suffered a myocardial infarction and 136 subjects recruited by random sampling from the local census were included in the study. PLA genotype distribution and allele frequencies in patients did not significantly differ from those in the control group. Mean fibrinogen concentration tended to be higher in controls with genotype PLA1PLA1 than in those with genotype PLA1PLA2 or PLA2PLA2, and in patients this difference reached statistical significance (p < 0.001). We conclude that the PLA polymorphism may be in linkage disequilibrium with another functional mutation in or near the promoter area of the fibrinogen gene or even in another gene, which controls the production or the clearance of fibrinogen.


Assuntos
Fibrinogênio/metabolismo , Infarto do Miocárdio/genética , Complexo Glicoproteico GPIIb-IIIa de Plaquetas/genética , Polimorfismo Genético , Distribuição de Qui-Quadrado , Feminino , Fibrinogênio/genética , Genótipo , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/sangue , Complexo Glicoproteico GPIIb-IIIa de Plaquetas/metabolismo , Estatística como Assunto
17.
Surg Oncol ; 2(1): 59-63, 1993.
Artigo em Inglês | MEDLINE | ID: mdl-7902763

RESUMO

This study was undertaken to relate the expression of the proliferating cell nuclear antigen (PCNA), a proliferation marker of putative prognostic significance, to some more established prognostic factors in a series of 60 consecutive breast cancer surgical specimens. PCNA was detected by the PC10 monoclonal antibody (MAb) using an immunohistochemical method and PCNA immunostaining was estimated on a semiquantitative basis, a cut-off value of 50% of positively stained tumour cells discriminating between the high (> 50%) and low (< 50%) PCNA grade. The PCNA grade did not correlate with tumour size and axillary node status. However, a high PCNA grade tended to be associated with a poor histological grade and there was an inverse relationship with oestrogen-receptor status, as determined by means of the immuno-histochemical staining for the oestrogen-induced pS2 protein. These conflicting results suggest that the possible prognostic usefulness of PCNA immunostaining, as a measure of cell proliferation rate, in breast cancer is yet to be demonstrated and can be validated only by direct relation to survival data.


Assuntos
Antígenos de Neoplasias/análise , Biomarcadores Tumorais/análise , Neoplasias da Mama/patologia , Proteínas Nucleares/análise , Proteínas , Adenocarcinoma Mucinoso/patologia , Anticorpos Monoclonais , Axila , Carcinoma Ductal de Mama/patologia , Carcinoma Lobular/patologia , Carcinoma Medular/patologia , Divisão Celular , Estrogênios/análise , Feminino , Humanos , Metástase Linfática , Proteínas de Neoplasias/análise , Prognóstico , Antígeno Nuclear de Célula em Proliferação , Fator Trefoil-1 , Proteínas Supressoras de Tumor
18.
J Epidemiol Community Health ; 52(11): 707-15, 1998 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-10396503

RESUMO

STUDY OBJECTIVE: To establish the prevalence of main cardiovascular risk factors in the province of Gerona, where the incidence of myocardial infarction is known to be low. DESIGN: This was a cross sectional study of prevalence of cardiovascular risk factors conducted on a large random population sample. SETTING: The province of Gerona, Spain. PARTICIPANTS: Two thousand four hundred and four eligible inhabitants of Gerona aged between 25 and 74 years were randomly selected for a multi-stage sample stratified by age and sex. The following were standardly measured: lipids (total cholesterol, high density, low density, lipoprotein (a) and triglycerides), fibrinogen, basal glycaemia, arterial pressure, anthropometric variables, smoking, history of angina (Rose questionnaire), and a medical history questionnaire. Population measurements were standardised for the world population of 24 to 74 years of age. RESULTS: The participation rate was 72.7% (1748). Total mean cholesterol was 5.69 mmol/l in men and 5.61 mmol/l in women and mean high density cholesterol was 1.22 mmol/l and 1.47 mmol/l, respectively. Median lipoprotein (a) was 0.22 g/l. These three lipids increased significantly with age. Mean fibrinogen was 2.92 g/l in men and 3.09 g/l in women, and was higher in smokers. The prevalence of hypertension (systolic arterial tension > or = 140 mm Hg or diastolic > or = 90 mm Hg or drug treatment) was 31.3% in men and 27.7% in women. The proportion of male smokers was 33.8% and female smokers 22.7%. The proportion of female smokers in the 25-34 year age group exceeded that of the remaining age groups for both men and women. CONCLUSIONS: The prevalence of cardiovascular risk factors in Gerona is relatively high for the low myocardial infarction incidence typical of the area, although similar to that of other Spanish areas. The factors that confer sufficient protection to compensate for the effect of the prevalence of these risk factors remain to be elucidated.


Assuntos
Doenças Cardiovasculares/epidemiologia , Adulto , Idoso , Estudos Transversais , Feminino , Nível de Saúde , Inquéritos Epidemiológicos , Humanos , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/epidemiologia , Projetos Piloto , Fatores de Risco , Espanha/epidemiologia , Inquéritos e Questionários
19.
Clin Chim Acta ; 264(2): 193-205, 1997 Aug 29.
Artigo em Inglês | MEDLINE | ID: mdl-9293377

RESUMO

Family history of atherosclerosis has been recognised as an nonmodifiable cardiovascular risk factor. Lipid levels, together with hypertension and diabetes, appear to have an inheritable component. The aim of the study was to ascertain whether lipoprotein abnormalities of 169 adult patients with non-coronary atherosclerosis were associated with a family history of atherosclerosis. Besides intermediate density lipopoprotein composition and Lp(a) levels, we focused on apo(a) and apo E phenotypes, LDL cholesterol/apo B ratio, VLDL triglyceride/HDL cholesterol ratio, and environmental factors. We found that patients with a family history of atherosclerosis had a higher prevalence of VLDL triglyceride/HDL cholesterol ratio above 1.8 (51.3% vs 34.7%) than patients without. Similarly, there was a significant inverse correlation between both considered ratios (r = -0.24, p < 0.05). The odds ratio of the presence of both abnormal ratios (4.60, 95% CI, 1.41-15.00) and low molecular weight apo(a) isoforms (3.30, 95% CI, 1.05-10.30 and family history of atherosclerosis was independent of smoking and hypertension. Apo(a) isoform size seems to be more important than Lp(a) concentrations in the family history of atherosclerosis risk determination. Subsequent analysis showed that patients with a family history of atherosclerosis had a greater-than-fourfold increased risk of having one or both abnormal ratios reflecting metabolic disturbances which probably constitute a combined trait. Family history of atherosclerosis may constitute a specific lipoprotein-related marker of atherosclerosis. Such a marker often precedes the onset of overt disease and may contribute to identifying patients with an atherogenic lipoprotein profile even in the absence of classical lipid risk factors.


Assuntos
Arteriosclerose/sangue , Arteriosclerose/complicações , Arteriosclerose/genética , Isquemia Encefálica/sangue , Isquemia Encefálica/complicações , Lipídeos/sangue , Doenças Vasculares Periféricas/sangue , Doenças Vasculares Periféricas/complicações , Adulto , Idoso , Idoso de 80 Anos ou mais , Apolipoproteínas E/sangue , Isquemia Encefálica/genética , Colesterol/sangue , HDL-Colesterol/sangue , VLDL-Colesterol/sangue , Saúde da Família , Humanos , Lipoproteína(a)/sangue , Lipoproteínas/sangue , Masculino , Pessoa de Meia-Idade , Doenças Vasculares Periféricas/genética , Fenótipo , Fatores de Risco , Triglicerídeos/sangue
20.
Diagn Cytopathol ; 8(4): 361-5, 1992.
Artigo em Inglês | MEDLINE | ID: mdl-1638937

RESUMO

Differentiating mesothelioma, reactive mesothelium, and adenocarcinoma in serous effusions is often difficult, despite the application of ancillary techniques in support of the traditional cytomorphologic criteria. A polyclonal antimesothelial-cell antibody recently developed by our group was evaluated as a histogenetic marker on a series of primary (n = 12) and metastatic (n = 12) malignant effusions. Immunostaining was performed on paraffin sections from cell blocks. All mesothelioma effusions stained positive for the antibody, whereas, in contrast, all metastatic carcinoma specimens failed to react. These results (100 percent specificity and 100% sensitivity for mesothelioma) provide a basis for a reliable use of the antibody in the cytologic examination of suspicious or malignant serous effusions.


Assuntos
Adenocarcinoma/patologia , Líquido Ascítico/patologia , Biomarcadores , Mesotelioma/patologia , Derrame Pleural/patologia , Adenocarcinoma/imunologia , Humanos , Técnicas Imunoenzimáticas , Mesotelioma/imunologia
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