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1.
Tech Coloproctol ; 24(7): 711-720, 2020 07.
Artigo em Inglês | MEDLINE | ID: mdl-32306308

RESUMO

BACKGROUND: The number of indications for strictureplasty for Crohn's disease has been greatly reduced since the widespread use of biologics, although the risk of intestinal failure remains. The aim of the study was to analyze the outcomes of strictureplasty and to identify risk factors for site-specific recurrence in the era of biologics. METHODS: Consecutive patients treated with strictureplasty for Crohn's disease between 2002 and 2018 were retrospectively included. Univariate analysis was carried out. Risk factors for recurrence were identified through a multilevel logistic regression analysis. RESULTS: Two hundred sixty-six patients were included in the study ( 171 males, median age 39.5 years, range 18-76 years). The majority of the 718 strictures requiring surgery in these patients were located in the ileum (61%), treated with conventional strictureplasty (89.6%) and required an additional resection (73.7%). Median follow-up time and time to recurrence were 96 months and 62.5 months respectively. The site-specific recurrence rate was 12.2% at 5 years and 25.7% at 10 years. Smoking was associated with a higher risk of recurrence in patients with milder disease. The 10-year recurrence rate was significantly higher for strictureplasties performed in the terminal ileum (30.9%, p = 0.0019) as compared to the ileum (21.8%) and the jejunum (8.4%). Multilevel logistic regression analysis showed that postoperative exposure to biologics (OR 4.74, p 0.001), nonconventional strictureplasty (OR 3.57, p 0.008) and a strictureplasty performed on a previous anastomosis (OR 13.58, p 0.002) were associated with site-specific recurrence. CONCLUSIONS: Strictureplasty is associated with optimal long-term outcomes in the biologic era and should be performed when feasible, to reduce the risk of intestinal failure in Crohn's disease patients.


Assuntos
Produtos Biológicos , Doença de Crohn , Obstrução Intestinal , Adolescente , Adulto , Idoso , Doença de Crohn/cirurgia , Seguimentos , Humanos , Obstrução Intestinal/etiologia , Obstrução Intestinal/cirurgia , Intestino Delgado/cirurgia , Masculino , Pessoa de Meia-Idade , Recidiva , Reoperação , Estudos Retrospectivos , Fatores de Risco , Resultado do Tratamento , Adulto Jovem
2.
J Matern Fetal Neonatal Med ; 28(13): 1602-7, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-25234103

RESUMO

OBJECTIVE: We examined the reliability of the main prenatal and postnatal prognosis-related indexes that can be used to evaluate congenital diaphragmatic hernia (CDH) outcome. METHODS: Seventy-seven neonates with CDH were analyzed according to CDH prognosis-related factors, divided into prenatal findings, postnatal clinical values and postnatal predictive outcome scores applied at birth and within the first 12-24 h. The data are compared between two groups: survivors and non-survivors. RESULTS: During prenatal age, major associated anomalies, intrathoracic stomach, diagnosis prior to 25 weeks of gestational age and lung-to-head ratio < 0.6 were statistically significant, demonstrating their greater incidence in non-survivors. The majority of postnatal values at PICU admission were found to be reliable in identifying the CDH outcome: paO2/FiO2, oxygenation index, alveolar-arterial-O2 gradient, arterial-alveolar-O2 tension ratio, pH, mean blood pressure, body temperature. All the postnatal predictive outcome scores (Apgar 1' and 5', CDH-Study-Group equation, Score for Neonatal-Acute-Physiology II, SNAP-Perinatal-Extension II, Pediatric Risk of Mortality III and Wilford-Hall/Santa-Rosa formula) were statistically significant with more favorable values for prognosis in the survivors group. CONCLUSION: The chances of predicting CDH outcome are fairly high. During prenatal age, only a few findings may be obtained. Conversely, many postnatal indexes and scores can reliably predict such outcome.


Assuntos
Indicadores Básicos de Saúde , Hérnias Diafragmáticas Congênitas/diagnóstico , Resultado da Gravidez , Diagnóstico Pré-Natal/métodos , Gasometria , Feminino , Idade Gestacional , Hérnias Diafragmáticas Congênitas/sangue , Hérnias Diafragmáticas Congênitas/mortalidade , Hérnias Diafragmáticas Congênitas/terapia , Humanos , Recém-Nascido , Masculino , Valor Preditivo dos Testes , Gravidez , Resultado da Gravidez/epidemiologia , Prognóstico , Reprodutibilidade dos Testes
4.
Minerva Anestesiol ; 78(10): 1117-25, 2012 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23059516

RESUMO

BACKGROUND: Congenital diaphragmatic hernia (CDH) still has a high mortality despite advanced assistance techniques. The aim of this study is to verify the validity of five respiratory and blood-gas-derived indices in defining presurgical stabilization: the oxygenation index (OI), the alveolar-arterial O(2) gradient (A-aDO(2)), the arterial-alveolar O(2) tension ratio (a/AO(2)), the arterial pH and the PaCO(2). METHODS: The study involved 73 neonates with CDH where the accuracy of stabilization was assessed through the survival percentage and the contemporary behaviour of mean arterial pressure (MAP), ductal shunting, urine output and lactate levels. The trend of the indices was compared in two groups (stable/fit for surgery vs unstable/unfit for surgery) at five times (PICU admission, 6, 12, 24 hours after admission, assessment of clinical stabilization). RESULTS: Fifty-five neonates were defined stabilized on the basis of the indices and underwent surgery with a 100% survival rate; 18 patients died before surgery, having never achieved clinical stabilization. MAP, ductal shunting, urine output and lactate levels were normal in the stabilized patients and altered in the non stabilized. Of the five parameters considered, all three oxygenation-linked indices (OI, A-aDO(2), a/AO(2)) are very powerful, whereas pH and PaCO(2) appears valid but more tardive. Their progressive improvement (OI<10, A-aDO(2)<250 mmHg, a/AO(2)>0.50, PaCO(2)<55 mmHg, pH>7.35) defined presurgical stabilization, thus allowing CDH surgical correction. CONCLUSION: The study confirms the validity of these indices as a guide to the treatment of neonates with CDH, showing a good reliability in identifying presurgical stabilization.


Assuntos
Gasometria , Hérnia Diafragmática/cirurgia , Hérnias Diafragmáticas Congênitas , Mecânica Respiratória/fisiologia , Dióxido de Carbono/sangue , Feminino , Herniorrafia , Humanos , Concentração de Íons de Hidrogênio , Recém-Nascido , Masculino , Oxigênio/sangue , Consumo de Oxigênio/fisiologia , Alvéolos Pulmonares/metabolismo , Curva ROC , Reprodutibilidade dos Testes , Estudos Retrospectivos
5.
Neurol Sci ; 33 Suppl 1: S181-3, 2012 May.
Artigo em Inglês | MEDLINE | ID: mdl-22644199

RESUMO

Despite the burden of chronic daily headache (CDH), general practitioners' (GPs) ability to recognize it is unknown. This work is a sub-study of a population-based study investigating GPs' knowledge on their CDH patients. Patients diagnosed with CDH through the screening questionnaire were interviewed by their GPs who indicated if subjects were known as patients suffering from CDH with medication overuse (MO), CDH without MO, episodic headache (EH) or non-headache sufferers. Our study showed that 64.37 % of CDH sufferers are misdiagnosed by their GPs. However, overusers are better known to GPs.


Assuntos
Clínicos Gerais , Transtornos da Cefaleia/diagnóstico , Papel do Médico , Vigilância da População/métodos , Atenção Primária à Saúde/métodos , Estudos Transversais , Transtornos da Cefaleia/epidemiologia , Humanos , Inquéritos e Questionários
6.
Radiol Med ; 117(6): 979-91, 2012 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-22580809

RESUMO

PURPOSE: The aim of this study was to assess the baseline computed tomography (CT) attenuation of acute and chronic pulmonary thromboemboli, their contrast enhancement (CE), correlation with haematocrit (Ht) levels and the presence of hypertrophic bronchial arteries. MATERIALS AND METHODS: From January 2006 to October 2009, we measured the baseline and postcontrast attenuation values of acute pulmonary thrombi emboli on CT angiograms of 86 patients with acute pulmonary embolism (PE) and those of chronic thrombi in 29 patients with pulmonary hypertension of various origins. The attenuation of acute thrombi was correlated with Ht and CE of chronic thrombi with the presence of hypertrophic bronchial arteries. RESULTS: Acute emboli had a mean baseline attenuation of 54.9 Hounsfield units (HU) and showed no CE. The attenuation of acute thrombi was not dependent on Ht. Chronic thrombi had a mean baseline attenuation of 33.8 HU, and 54% of thrombi showed significant CE. In 57% of cases, a collateral circulation had developed. In 76.5% of cases, CE and hypertrophic bronchial arteries coexisted (p=0.026). Neither thrombotic CE nor bronchial artery hypertrophy predominated in any one of the diseases associated with chronic thrombosis. CONCLUSIONS: Before contrast administration, acute emboli coare prevalently hyperattenuating and therefore more conspicuous. Only chronic thrombi exhibit CE, and CE is significantly associated with the development of collateral circulation, which may be involved in the process of thrombotic recanalisation.


Assuntos
Artéria Pulmonar/diagnóstico por imagem , Embolia Pulmonar/diagnóstico por imagem , Tomografia Computadorizada por Raios X/métodos , Adulto , Idoso , Idoso de 80 Anos ou mais , Artérias Brônquicas/diagnóstico por imagem , Artérias Brônquicas/fisiopatologia , Meios de Contraste , Feminino , Humanos , Hipertensão Pulmonar/diagnóstico por imagem , Hipertensão Pulmonar/fisiopatologia , Iopamidol/análogos & derivados , Masculino , Pessoa de Meia-Idade , Artéria Pulmonar/fisiopatologia , Embolia Pulmonar/fisiopatologia , Estatísticas não Paramétricas
7.
Radiol Med ; 116(2): 230-45, 2011 Mar.
Artigo em Inglês, Italiano | MEDLINE | ID: mdl-21311989

RESUMO

PURPOSE: Evaluation of computed tomography (CT) pulmonary angiography parameters revealing pulmonary embolism (PE) severity with particular attention to pulmonary obstruction indexes. Comparison with clinical and hemodynamic data and determination of predictive role in the development of chronic pulmonary heart disease. MATERIALS AND METHODS: This retrospective study analyzes 45 not consecutive patients from November 2007 to December 2008 with CT angiography diagnosis of acute PE. Included in the study are patients at the first documented episode of acute PE, with 6 month follow-up. Patients with severe pre-existent cardiopulmonary pathology or neoplastic diseases were excluded from the study. CT angiography evaluated right ventricular (RV)/left ventricular (LV) ratio, obstruction index according to Qanadli and Total Clot Burden (Ghanima score). PE indexes were compared with Troponin I measurement and echocardiography result; at last hospitalization and intensive care time were reported. RESULTS: A significant association was found between Ghanima and Qanadli score: the two indexes are equivalent in quantification of pulmonary arterial obstruction (p<0.001). Among others CT parameters, the new Ghanima score evidenced the best accuracy to detect patients evolving to chronic pulmonary heart disease (76%). This value is higher than that of echocardiography (71%). Troponins showed highest accuracy (82%). CONCLUSIONS: Ghanima score can be used in emergency CT angiography diagnosis as prognostic marker for a quickly risk stratification of pulmonary heart disease or death in patients with acute PE. This approach allows to obtain, with just one test, both the diagnosis and a rather accurate acute PE risk stratification.


Assuntos
Artéria Pulmonar/diagnóstico por imagem , Embolia Pulmonar/diagnóstico por imagem , Doença Cardiopulmonar/diagnóstico por imagem , Tomografia Computadorizada por Raios X/métodos , Doença Aguda , Adulto , Idoso , Idoso de 80 Anos ou mais , Angiografia/métodos , Distribuição de Qui-Quadrado , Meios de Contraste , Feminino , Humanos , Iopamidol/análogos & derivados , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Prognóstico , Artéria Pulmonar/patologia , Doença Cardiopulmonar/patologia , Curva ROC , Estudos Retrospectivos , Sensibilidade e Especificidade , Índice de Gravidade de Doença , Estatísticas não Paramétricas
8.
Scand J Med Sci Sports ; 21(4): 519-25, 2011 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-20459480

RESUMO

Survival and exercise performance are key targets of heart transplantation (HT). We designed this study to help in identifying (1) patients with chronic heart failure (CHF) at risk of poor exercise capacity after HT and (2) HT recipients presenting risk factors modifiable with exercise showing a potential impact on outcome. We enrolled 49 HT recipients (age 52 ± 12 years, 84% males) who underwent a cardiopulmonary exercise test before (9 ± 6 months) and after (20 ± 14 months) HT. In the CHF phase, lower peak oxygen consumption (VO(2) ) (odds ratio 0.69, P=0.017) independently predicted peak VO(2) improvement after HT. In the post-HT phase, body mass index (BMI) [adjusted hazard ratio (HR) 1.16, P=0.034] and VE (ventilation)/VCO(2) (carbon dioxide production) slope (adjusted HR 1.07, P=0.031) independently predicted mortality. In conclusion, CHF patients with only a moderate impairment of peak VO(2) are at a risk of failing to achieve a significant improvement of exercise performance after HT. In the post-HT phase, a BMI≥28 and/or a VE/VCO(2) slope ≥47 represent risk factors for death, which are potentially modifiable with exercise. Prospective randomized studies are needed to analyze the effects of training on functional capacity and outcome in the different subsets of HT recipients.


Assuntos
Exercício Físico , Transplante de Coração/fisiologia , Resistência Física/fisiologia , Adulto , Teste de Esforço/métodos , Feminino , Insuficiência Cardíaca/cirurgia , Humanos , Masculino , Pessoa de Meia-Idade , Razão de Chances , Consumo de Oxigênio/fisiologia , Pico do Fluxo Expiratório/fisiologia , Período Pós-Operatório , Qualidade de Vida , Fatores de Risco , Sobrevida
9.
World J Gastroenterol ; 12(33): 5336-43, 2006 Sep 07.
Artigo em Inglês | MEDLINE | ID: mdl-16981264

RESUMO

AIM: To simultaneously evaluate the presence of defects in gallbladder and gastric emptying, as well as in intestinal transit in gallstone patients (GS) and the effect of chronic ursodeoxycholic acid (UDCA) administration on these parameters and on serum bile acids and clinical outcome in GS and controls (CTR). METHODS: After a standard liquid test meal, gallbla-dder and gastric emptying (by ultrasound), oroileal transit time (OITT) (by an immunoenzymatic technique) and serum bile acids (by HPLC) were evaluated before and after 3 mo of UDCA (12 mg/kg bw/d) or placebo administration in 10 symptomatic GS and 10 matched healthy CTR. RESULTS: OITT was longer in GS than in CTR (P < 0.0001); UDCA significantly reduced OITT in GS (P < 0.0001), but not in CTR. GS had longer gastric half-emptying time (t(1/2)) than CTR (P < 0.0044) at baseline; after UDCA, t(1/2) significantly decreased (P < 0.006) in GS but not in CTR. Placebo administration had no effect on gastric emptying and intestinal transit in both GS and CTR. CONCLUSION: The gallstone patient has simultaneous multiple impairments of gallbladder and gastric emptying, as well as of intestinal transit. UDCA administration restores these defects in GS, without any effect in CTR. These results confirm the pathogenetic role of gastrointestinal motility in gallstone disease and suggest an additional mechanism of action for UDCA in reducing bile cholesterol supersaturation.


Assuntos
Colagogos e Coleréticos/farmacologia , Cálculos Biliares/tratamento farmacológico , Motilidade Gastrointestinal/efeitos dos fármacos , Trato Gastrointestinal/efeitos dos fármacos , Trânsito Gastrointestinal/efeitos dos fármacos , Ácido Ursodesoxicólico/farmacologia , Adulto , Ácidos e Sais Biliares/sangue , Ácidos e Sais Biliares/metabolismo , Índice de Massa Corporal , Estudos de Casos e Controles , Cromatografia Líquida de Alta Pressão , Feminino , Humanos , Técnicas Imunoenzimáticas , Masculino , Pessoa de Meia-Idade , Placebos
10.
Aliment Pharmacol Ther ; 24(1): 129-36, 2006 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-16803611

RESUMO

BACKGROUND: Incidence of hepatocellular carcinoma in hepatitis C virus-related cirrhosis is 4% per year. Although cost-effective, current screening could be improved. AIM: To develop a statistical model including non-invasive parameters able to identify patients at high risk of developing hepatocellular carcinoma. METHODS: One hundred and fifty-eight patients (73F:85M) with compensated chronic hepatitis C virus liver disease underwent evaluation, including argyrophilic nucleolar organizer regions proliferation index, and were followed up for 56.18 +/- 1.44 months. RESULTS: Fifty-six patients had chronic hepatitis without cirrhosis and low argyrophilic nucleolar organizer regions proliferation index (< or =25%), 65 had hepatitis C virus-related cirrhosis and low argyrophilic nucleolar organizer regions proliferation index and 37 had hepatitis C virus-related cirrhosis and high argyrophilic nucleolar organizer regions proliferation index (>25%). Groups were similar for gender and viral genotype distribution. None of the patients with chronic hepatitis without cirrhosis developed hepatocellular carcinoma, compared with 6.1% of low argyrophilic nucleolar organizer regions proliferation index and 30.6% of high argyrophilic nucleolar organizer regions proliferation index (P = 0.002). By multivariable logistic regression analysis, the following parameters were independently associated with hepatocellular carcinoma development and used for the development of the statistical model: platelets (OR 0.98), gamma-globulins (OR 0.111), alanine aminotransferase/aspartate aminotransferase ratio (OR 0.07), serum ferritin (OR 1.0) and ultrasonographic pattern (coarse OR 2.9, coarse nodular OR 10.12). The statistical model properly allocated 95.9% of patients with low argyrophilic nucleolar organizer regions proliferation index and 72.2% of patients with high argyrophilic nucleolar organizer regions proliferation index. CONCLUSIONS: The model, to be validated in large prospective studies, may help tailoring screening according to the risk of hepatocellular carcinoma development.


Assuntos
Carcinoma Hepatocelular/virologia , Hepatite C Crônica/patologia , Hepatócitos/patologia , Cirrose Hepática/virologia , Neoplasias Hepáticas/virologia , Adulto , Idoso , Proliferação de Células , Feminino , Hepatite C Crônica/complicações , Hepatócitos/virologia , Humanos , Masculino , Pessoa de Meia-Idade , Modelos Estatísticos , Análise de Regressão , Fatores de Risco , Análise de Sobrevida
11.
J Viral Hepat ; 12(5): 536-42, 2005 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-16108771

RESUMO

SUMMARY: Beside substantial progress in treatment of chronic hepatitis C (CHC) particular patients (genotype 1/4, high viral load, previous nonresponse, cirrhosis) remain difficult to treat. The aim of our pilot randomized study was to compare efficacy and tolerability of standard doses of Peginterferon alpha-2b + ribavirin with higher doses of Peginterferon alpha-2b administered twice weekly + ribavirin. Sixty-five outpatients with CHC were subsequently enrolled. Group A (n = 22) received recommended doses of Peginterferon alpha-2b and group B (n = 43), received high doses twice weekly. Groups were comparable for baseline characteristics. All genotype 1/4 patients had high baseline viraemia. Sustained virological response (SVR) was significantly higher in group B among naïve patients (72%vs 25%, P = 0.024). A significantly higher rate of SVR was observed in group B both considering only genotype 1/4 patients, (46%vs 13%, P = 0.03) and grouping together genotype 1/4 naive and relapsers (57%vs 11%, P = 0.039). Discontinuation rate was 32% (7 of 22) in group A and 21% (9 [corrected] of 43) in group B. Our response rates are the highest reported for genotype 1/4 with high viraemia. Our pilot study supports the need of randomized studies to evaluate both viral kinetics and efficacy of high dose and twice weekly administration of Peginterferon alpha-2b in genotype 1/4 patients with high viraemia who may need personalized treatment schedules.


Assuntos
Antivirais/administração & dosagem , Hepatite C Crônica/tratamento farmacológico , Interferon-alfa/administração & dosagem , Ribavirina/administração & dosagem , Adulto , Antivirais/farmacologia , Relação Dose-Resposta a Droga , Esquema de Medicação , Interações Medicamentosas , Quimioterapia Combinada , Feminino , Humanos , Interferon alfa-2 , Interferon-alfa/farmacologia , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Polietilenoglicóis , Proteínas Recombinantes , Ribavirina/farmacologia , Resultado do Tratamento , Carga Viral
12.
Eur Heart J ; 25(14): 1237-41, 2004 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-15246642

RESUMO

AIM: The spectrum of histological alterations, namely atrial amyloidosis, in the right and left atria of patients with chronic persistent atrial fibrillation (AF) and rheumatic heart disease is not completely known. METHODS AND RESULTS: One hundred and twenty-eight atrial appendages (66 left and 62 right), obtained from 72 patients with rheumatic valve disease and chronic AF undergoing cardiac surgery for valve replacement or repair and AF treatment were histologically evaluated for the presence of amyloid deposits. One hundred and four specimens of left and right auricles from 52 patients in sinus rhythm with severe chronic heart failure undergoing heart transplant were also analyzed (controls). Amyloid was found in 33 (46%) valvular patients with chronic persistent AF and in 6 (12%) controls. Amyloid was related to the presence and duration of AF, was more frequently found in left atrial samples and was independent of age. On stepwise logistic regression analysis, AF duration and female gender were independently related to amyloid deposition. CONCLUSIONS: Patients with long-standing AF and rheumatic heart disease have a very high prevalence of atrial amyloidosis. Amyloid deposition is more frequent in left than in right atrial appendage and correlates with AF duration and female gender. Amyloid deposition could constitute an additional histological feature in the structural remodeling of atria during long-standing AF, at least in rheumatic valve disease. Persistence of AF might play a pivotal role in promoting amyloid deposition.


Assuntos
Amiloidose/patologia , Fibrilação Atrial/patologia , Cardiomiopatias/patologia , Doenças das Valvas Cardíacas/patologia , Idoso , Amiloide/análise , Amiloidose/complicações , Fibrilação Atrial/etiologia , Função Atrial/fisiologia , Cardiomiopatias/complicações , Ecocardiografia/métodos , Feminino , Átrios do Coração/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Cardiopatia Reumática/patologia
13.
Cardiologia ; 44(3): 261-8, 1999 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-10327728

RESUMO

Stent-like plain old balloon angioplasty (POBA, < or = 30% residual diameter stenosis) in patients with stable angina resulted in a clinical and angiographic long-term outcome equivalent to stenting. In unstable angina POBA showed lower acute and long-term efficacy than in the stable setting. Data comparing stent-like POBA and coronary stenting in unstable angina are lacking in the literature. The aim of this retrospective single-center study was to compare the long-term effectiveness of stent-like POBA and coronary stenting in unstable angina. From January 1996 to December 1996 we retrospectively examined 187 consecutive patients with unstable angina who underwent coronary angioplasty on a native vessel: 135 had coronary stenting in addition to POBA and 50 achieved a stent-like result with POBA. Two patients, with major contraindication to coronary stenting, who did not reach a stent-like angiographic result, were also treated with only POBA but were excluded from the study. Stent implantation indications were: elective (54 stents, 30%), suboptimal angiographic result (104 stents, 58%), and bail-out situation (21 stents, 12%). Stent implantation showed high angiographic (98.5%) and clinical (95.5%) success. Stent thrombosis occurred only in 2 patients (1.5%). At quantitative coronary angiography the stent group showed a higher post-procedure minimal lumen diameter (2.74 +/- 1.25 vs 2.27 +/- 0.58 mm, p = 0.025), acute gain (1.95 +/- 1.28 vs 1.43 +/- 0.57 mm, p = 0.007) and lower residual stenosis diameter (13.89 +/- 7.43 vs 20.4 +/- 7.28%, p = 0.001) than the stent-like POBA group. At 1-year follow-up the stent group showed a higher event-free survival rate (77.9 vs 64.6%, p = 0.009) mainly due to lower recurrence of angina and repetition of percutaneous procedures. Stent-like POBA procedure and baseline lesion length > or = 10 mm proved to be the only independent predictors of long-term ischemic event occurrence. In conclusion, in unstable angina, stent implantation appears more effective than stent-like POBA to avoid long-term ischemic complications.


Assuntos
Angina Instável/terapia , Angioplastia com Balão , Stents , Idoso , Angina Instável/cirurgia , Angiografia Coronária , Ponte de Artéria Coronária , Interpretação Estatística de Dados , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Recidiva , Estudos Retrospectivos , Software , Fatores de Tempo
14.
Coron Artery Dis ; 10(2): 81-8, 1999.
Artigo em Inglês | MEDLINE | ID: mdl-10219513

RESUMO

BACKGROUND: Unstable angina is usually caused by acute thrombosis superimposed on a fissured plaque. Coronary artery stenting has been shown to improve short- and long-term results of coronary angioplasty in mainly stable patients with one-vessel disease, but it is uncertain whether its use in an unstable clinical setting can be safe and useful. This study sought to evaluate the results of coronary stenting in unstable angina and to determine patient, lesion and procedure-related predictors of 30-day and long-term ischemic events. METHODS: We studied 266 consecutive patients (mean age 62 +/- 9 years) with unstable angina who underwent coronary artery stenting. The procedure was performed electively in 24%, in bailout situations in 11% and for a suboptimal result of conventional angioplasty in 65%. After stent implantation, patients were treated with anticoagulation (61) on combined antiplatelet therapy (200). Multivariate logistic regression analyses were performed to determine 30-day and long-term predictive factors of ischemic complications. RESULTS: Procedural success was obtained in 261 patients (98.1%). During the first 30 days after stenting, one patient died from cardiogenic shock (0.3%) and six (22%) suffered a non-fatal Q-wave myocardial infarction. Patients with combined antiplatelet therapy had a significantly lower stent thrombosis rate (1.5% versus 11.4%, P = 0.002) than those treated with anticoagulant regimen. At long-term follow-up (17.7 +/- 9.4 months) cardiac mortality myocardial infarction and target-vessel revascularization rates were 0.4%, 1.5% and 9.3%, respectively. In multivessel and diabetic patients, a worse long-term event-free survival was observed. Logistic multivariate analysis revealed bailout stenting, anticoagulant therapy, implantation of stents longer than 15 mm as predictors of 30-day ischemic events. In addition, multivessel coronary artery disease and stent application with balloon size of less than 3 mm were predictive of long-term ischemic events. CONCLUSIONS: This study demonstrates that, either electively or after failure of conventional angioplasty, coronary stenting represents an effective therapy for patients with unstable angina. In the same clinical setting, combined antiplatelet therapy is associated with a lower 30-day stent thrombosis rate than anticoagulant therapy. Bailout stenting, anticoagulant therapy, implantation of stents longer than 15 mm were shown to be predictors of 30-day ischemic events, whereas multivessel coronary artery disease and stent application with small balloon size were predictive of long-term ischemic events.


Assuntos
Angina Instável/terapia , Angioplastia Coronária com Balão/métodos , Stents , Adulto , Idoso , Idoso de 80 Anos ou mais , Angina Instável/diagnóstico por imagem , Angina Instável/mortalidade , Angiografia Coronária , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Taxa de Sobrevida , Resultado do Tratamento
15.
Cardiologia ; 39(4): 261-8, 1994 Apr.
Artigo em Italiano | MEDLINE | ID: mdl-8062297

RESUMO

The analysis of valvular morphology is important in selecting patients with mitral rheumatic stenosis for percutaneous mitral valvuloplasty. Transthoracic echocardiography definitely plays a major role in this characterization whereas the usefulness of transesophageal echocardiography has not been determined yet. We studied 95 patients (82 females, 13 males, mean age 51 +/- 12 years) undergoing mitral valvuloplasty (Inoue's technique). The two methods were compared for: morphologic mitral score; correlation between score and increase in mitral valve area; ability to predict post valvuloplasty mitral regurgitation; accuracy in detecting atrial thrombosis. A significant linear correlation between transthoracic and transesophageal echocardiographic scores was observed (r = 0.78, p < 0.001). Transesophageal echocardiographic score was significantly lower (6.8 +/- 1.62 versus 7.17 +/- 1.69, p < 0.05) due to a lower estimation of the extent of calcifications (0.7 +/- 0.97 versus 1 +/- 1.12, p < 0.05). Correlation coefficients between increase in mitral valve area and scores obtained with the two methods were similar (0.29 and 0.30). For both echocardiographic techniques 6 was the best cut-off score value. None of the clinical, hemodynamic and echocardiographic variables was able to predict the occurrence of severe mitral regurgitation. Five patients with atrial thrombosis were identified by transesophageal echocardiography but only 1 by transthoracic echocardiography. We conclude that the two echocardiographic methods have complementary roles in the evaluation of patients undergoing mitral balloon valvuloplasty. Mitral valve morphologic score can generally be assessed adequately by transthoracic echocardiography but transesophageal echocardiography is mandatory in order to exclude left atrial thrombi. The occurrence of post valvuloplasty severe mitral regurgitation cannot be reasonably predicted on echocardiographic basis.


Assuntos
Angioplastia Coronária com Balão , Ecocardiografia/métodos , Estenose da Valva Mitral/diagnóstico por imagem , Adulto , Análise Discriminante , Ecocardiografia Transesofagiana , Feminino , Seguimentos , Cardiopatias/diagnóstico por imagem , Humanos , Masculino , Pessoa de Meia-Idade , Insuficiência da Valva Mitral/diagnóstico por imagem , Estenose da Valva Mitral/terapia , Tórax , Trombose/diagnóstico por imagem , Resultado do Tratamento
16.
Cardiologia ; 38(7): 445-53, 1993 Jul.
Artigo em Italiano | MEDLINE | ID: mdl-8221739

RESUMO

Available information on atherosclerosis of thoracic aorta in man is scanty and mostly derived from pathological or surgical series. Transesophageal echocardiography makes a clear definition of the entire thoracic aorta possible and enables large, population based studies. In order to define prevalence, risk factors and clinical implications of aortic atherosclerosis, the echocardiographic recordings of 220 patients suitable for both evaluation of thoracic aorta and risk factors analysis were reviewed. Transesophageal echocardiography has been performed because of valvular diseases (78), suspected aortic aneurysm or trauma (43), evaluation of valve prosthesis (39), previous cerebral or peripheral embolic events (22), infective endocarditis (14), cardiac mass lesions (12) or other indications (12). Age ranged from 5 to 81 years (55 +/- 15), male to female ratio was 0.99. Simple and complex atherosclerotic plaques were identified in 33% and 10% respectively. Complex atheromas were more frequent among patients with previous embolic episodes (6/22, 27% versus 17/198, 8.5%; p = 0.019). The prevalence of any type of atherosclerosis progressively increased from the fourth (8%) to the eighth (88%) decade of age. By univariate analysis age (p < 0.001), history of hypertension (p < 0.001), systolic (p < 0.001) and diastolic (p < 0.05) pressure, type II diabetes mellitus (p < 0.01), HDL cholesterol (p < 0.01), HDL/total cholesterol (p < 0.01) and uricaemia (p < 0.05) were associated with aortic atherosclerosis. Discriminant analysis identified 5 independent variables associated with the presence and the extent of atherosclerosis (Wilk's Lambda = 0.43): number of cigarettes per day, age, history of hypertension, systolic pressure and type II diabetes mellitus. This model provided a 63% correct classification rate.(ABSTRACT TRUNCATED AT 250 WORDS)


Assuntos
Doenças da Aorta/epidemiologia , Arteriosclerose/epidemiologia , Ecocardiografia Transesofagiana , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Análise de Variância , Aorta Torácica/diagnóstico por imagem , Doenças da Aorta/diagnóstico por imagem , Arteriosclerose/diagnóstico por imagem , Distribuição de Qui-Quadrado , Criança , Pré-Escolar , Análise Discriminante , Feminino , Humanos , Itália/epidemiologia , Masculino , Pessoa de Meia-Idade , Prevalência , Estudos Retrospectivos , Fatores de Risco
17.
Cardiologia ; 34(10): 855-60, 1989 Oct.
Artigo em Italiano | MEDLINE | ID: mdl-2532568

RESUMO

In order to assess left ventricular diastolic function in elite athletes we studied 24 athletes (mean age 21 +/- 5 years) with the echo-Doppler technique. The control group consisted of 14 healthy males (mean age 24 +/- 6 years) and 99 patients (mean age 50 +/- 14 years) with primary or secondary left ventricular hypertrophy. The following variables were calculated: age, systolic and diastolic blood pressure, septal and posterior wall thickness, left ventricular volume and dimensions, myocardial mass index and mass/volume ratio, left ventricular end-systolic and peak systolic stress, RR interval, isovolumic relaxation time (IVRT), early (E) and late (A) peak flow velocity, E/A ratio, time and rate of deceleration of early diastolic flow. Compared with the normal subjects significant differences were observed with regard to systolic blood pressure, left ventricular wall thickness, myocardial mass, mass/volume ratio and peak systolic stress in the athlete group. In spite of a noticeable increase in myocardial mass indexes, all the diastolic function parameters were normal in the athletes. In this group a linear positive correlation between rapid filling indexes, ventricular mass and mass/volume ratio exists. These correlations are not present in the patients group. Moreover a linear negative correlation between RR interval and late diastolic flow velocity was found. In conclusion, the global diastolic ventricular function, evaluated with the echo-Doppler technique, is normal in athletes in spite of an increase in ventricular mass. Th early diastolic flow velocity is in direct proportion with mass increase and may represent one of the physiological mechanisms of the athlete heart adaptations.


Assuntos
Cardiomegalia/fisiopatologia , Diástole/fisiologia , Ecocardiografia Doppler , Coração/fisiologia , Contração Miocárdica/fisiologia , Esportes , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Hemodinâmica/fisiologia , Humanos , Masculino , Pessoa de Meia-Idade
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