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https://www.readbyqxmd.com/read/28614421/zero-calcium-score-as-a-filter-for-further-testing-in-patients-admitted-to-the-coronary-care-unit-with-chest-pain
#1
Luis Cláudio Lemos Correia, Fábio P Esteves, Manuela Carvalhal, Thiago Menezes Barbosa de Souza, Nicole de Sá, Vitor Calixto de Almeida Correia, Felipe Kalil Beirão Alexandre, Fernanda Lopes, Felipe Ferreira, Márcia Noya-Rabelo
Background: The accuracy of zero coronary calcium score as a filter in patients with chest pain has been demonstrated at the emergency room and outpatient clinics, populations with low prevalence of coronary artery disease (CAD). Objective: To test the gatekeeping role of zero calcium score in patients with chest pain admitted to the coronary care unit (CCU), where the pretest probability of CAD is higher than that of other populations. Methods: Patients underwent computed tomography for calcium scoring, and obstructive CAD was defined by a minimum 70% stenosis on invasive angiography...
June 12, 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28538760/a-multivariate-model-for-prediction-of-obstructive-coronary-disease-in-patients-with-acute-chest-pain-development-and-validation
#2
Luis Cláudio Lemos Correia, Maurício Cerqueira, Manuela Carvalhal, Felipe Ferreira, Guilherme Garcia, André Barcelos da Silva, Nicole de Sá, Fernanda Lopes, Ana Clara Barcelos, Márcia Noya-Rabelo
Background: Currently, there is no validated multivariate model to predict probability of obstructive coronary disease in patients with acute chest pain. Objective: To develop and validate a multivariate model to predict coronary artery disease (CAD) based on variables assessed at admission to the coronary care unit (CCU) due to acute chest pain. Methods: A total of 470 patients were studied, 370 utilized as the derivation sample and the subsequent 100 patients as the validation sample...
April 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28492738/factors-associated-with-coronary-artery-disease-progression-assessed-by-serial-coronary-computed-tomography-angiography
#3
Gabriel Cordeiro Camargo, Tamara Rothstein, Maria Eduarda Derenne, Leticia Sabioni, João A C Lima, Ronaldo de Souza Leão Lima, Ilan Gottlieb
Background: Coronary computed tomography angiography (CCTA) allows for noninvasive coronary artery disease (CAD) phenotyping. Factors related to CAD progression are epidemiologically valuable. Objective: To identify factors associated with CAD progression in patients undergoing sequential CCTA testing. Methods: We retrospectively analyzed 384 consecutive patients who had at least two CCTA studies between December 2005 and March 2013. Due to limitations in the quantification of CAD progression, we excluded patients who had undergone surgical revascularization previously or percutaneous coronary intervention (PCI) between studies...
May 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28099589/which-coronary-lesions-are-more-prone-to-cause-acute-myocardial-infarction
#4
Taner Sen, Mehmet Ali Astarcioglu, Osman Beton, Lale Dinc Asarcikli, Celal Kilit
Background: According to common belief, most myocardial infarctions (MIs) are due to the rupture of nonsevere, vulnerable plaques with < 70% obstruction. Data from recent trials challenge this belief, suggesting that the risk of coronary occlusion is, in fact, much higher after severe stenosis. The aim of this study was to investigate whether or not acute ST-elevation MIs result from high-grade stenoses by evaluating the presence of coronary collateral circulation (CCC). Methods: We retrospectively included 207 consecutive patients who had undergone primary percutaneous coronary intervention for acute ST-elevation MI...
February 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/27982159/comparative-study-between-perfusion-changes-and-positive-findings-on-coronary-flow-reserve
#5
Costantino Roberto Frack Costantini, Jose Antonio Ramires, Costantino Ortiz Costantini, Marcos Antonio Denk, Sergio Gustavo Tarbine, Marcelo de Freitas Santos, Daniel Aníbal Zanuttini, Carmen Weigert Silveira, Admar Moraes de Souza, Rafael Michel de Macedo
BACKGROUND: Functional assessment of coronary artery obstruction is used in cardiology practice to correlate anatomic obstructions with flow decrease. Among such assessments, the study of the coronary fractional flow reserve (FFR) has become the most widely used. OBJECTIVE: To evaluate the correlation between FFR and findings of ischemia obtained by noninvasive methods including stress echocardiography and nuclear medicine and the presence of critical coronary artery obstruction...
January 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/27683785/simplified-laparoscopic-gastric-bypass-with-gastrojejunal-linear-mechanical-anastomosis-technical-aspects
#6
Mariano Palermo, Edgardo Serra
Background: Gastric bypass is a restrictive and malabsorptive surgery. The restrictive part consists in the creation of a small gastric pouch. The gastrointestinal bypass serves as the malabsorptive element. Aim: To describe a simplified gastric bypass approach for morbid obese patients, showing our results, and also remarking the importance of this technique for reducing the learning curve. Method: The patient is positioned in a split legs position and carefully strapped to the operating room table, with the surgeon between the patient's legs...
2016: Arquivos Brasileiros de Cirurgia Digestiva: ABCD, Brazilian Archives of Digestive Surgery
https://www.readbyqxmd.com/read/27683767/complications-related-to-gastric-bypass-performed-with-different-gastrojejunal-diameters
#7
José Sampaio-Neto, Alcides José Branco-Filho, Luis Sérgio Nassif, Anne Caroline Broska, Douglas Jun Kamei, André Thá Nassif
Background: Among the options for surgical treatment of obesity, the most widely used has been the Roux-en-Y gastric bypass. The gastrojejunal anastomosis can be accomplished in two ways: handsewn or using circular and linear stapled. The complications can be divided in early and late. Aim: To compare the incidence of early complications related with the handsewn gastrojejunal anastomosis in gastric bypass using Fouchet catheter with different diameters. Method: The records of 732 consecutive patients who had undergone the bypass were retrospectively analyzed and divided in two groups, group 1 with 12 mm anastomosis (n=374), and group 2 with 15 mm (n=358)...
2016: Arquivos Brasileiros de Cirurgia Digestiva: ABCD, Brazilian Archives of Digestive Surgery
https://www.readbyqxmd.com/read/27679944/clinical-epidemiological-profile-of-acute-appendicitis-retrospective-analysis-of-638-cases
#8
Amanda Pereira Lima, Felipe José Vieira, Gabriela Procópio DE Moraes Oliveira, Plínio Dos Santos Ramos, Marielle Elisa Avelino, Felipe Garcia Prado, Gilson Salomão, Francisco Campos Silva, João Vicente Linhares Rodrigues
OBJECTIVE: to describe the clinical and epidemiological profile of acute appendicitis (AA) of the patients treated at a referral center in the Juiz de Fora macro-region, Minas Gerais State, Brazil. METHODS: we conducted a retrospective, observational study in the Dr. Mozart Geraldo TeixeiraEmergency Hospital. We selected 638 patients diagnosed with AA, and analyzed the variables gender, age, evolutionary phase, length of hospital stay, pathological diagnosis, use of antibiotics, use of drains, complications and mortality...
July 2016: Revista do Colégio Brasileiro de Cirurgiões
https://www.readbyqxmd.com/read/27679943/mirizzi-syndrome-grades-iii-and-iv-surgical-treatment
#9
Ronald Reverdito, André DE Moricz, Tércio DE Campos, Adhemar Monteiro Pacheco, Rodrigo Altenfelder Silva
OBJECTIVE: : to evaluate the epidemiology and outcomes of surgical treatment of patients with Mirizzi Syndrome (MS) grades III and IV, the most advanced according to Csendes classification. METHODS: : we conducted a retrospective, cross-sectional study by reviewing records of thirteen patients with grades III and IV MS operated from December 2001 to September 2013, among the 3,691 cholecystectomies performed in the period. RESULTS: : the incidence of MS was 0...
July 2016: Revista do Colégio Brasileiro de Cirurgiões
https://www.readbyqxmd.com/read/27556543/minimally-invasive-treatment-of-vesicourethral-leak-after-laparoscopic-radical-prostatectomy
#10
Tiago Rivello Elmor, Mauricio Rubinstein, Guilherme Lima, Antonio Cesar Cruz, Clovis Fraga Tenório Pereira, Irineu Rubinstein
OBJECTIVE: to describe our experience with a minimally invasive approach for persistent vesicourethral anastomotic leak (PVAL) after Laparoscopic Radical Prostatectomy (LRP). METHODS: from 2004 to 2011, two surgeons performed LRP in 620 patients. Ten patients had PVAL, with initially indicated conservative treatment, to no avail. These patients underwent a minimally invasive operation, consisting of an endoscopically insertion of two ureteral catheters to direct urine flow, fixed to a new urethral catheter...
May 2016: Revista do Colégio Brasileiro de Cirurgiões
https://www.readbyqxmd.com/read/27438039/biodegradable-biliary-stents-a-new-approach-for-the-management-of-hepaticojejunostomy-strictures-following-bile-duct-injury-prospective-study
#11
Mariano E Giménez, Mariano Palermo, Eduardo Houghton, Pablo Acquafresca, Caetano Finger, Juan M Verde, Jorge Cardoso Cúneo
BACKGROUND: Once a biliary injury has occurred, repair is done by a hepaticojejunostomy. The most common procedure is to perform a dilatation with balloon with a success of 70 %. Success rates range using biodegradable stents is from 85% to 95%. Biodegradable biliary stents should change the treatment of this complication. AIM: To investigate the use of biodegradable stents in a group of patients with hepaticojejunonostomy strictures. METHODS: In a prospective study 16 biodegradable stents were placed in 13 patients with hepaticojejunostomy strictures secondary to bile duct repair of a biliary surgical injury...
April 2016: Arquivos Brasileiros de Cirurgia Digestiva: ABCD, Brazilian Archives of Digestive Surgery
https://www.readbyqxmd.com/read/27275595/preliminary-analysis-of-hybrid-laparoscopic-procedure-for-resection-of-gastric-submucosal-tumors
#12
Pedro Henrique Lambach Caron, Mariana Ismael Dias Martins, Pedro Luiz Bertevello
OBJECTIVE: to evaluate the feasibility, safety and benefits of minimally invasive surgery for resection of gastric submucosal tumor (GSMT). METHODS: we conducted a retrospective study of medical records of patients undergoing endoscopy-assisted laparoscopic resection of gastric submucosal tumors (prospectively collected) from 2011 to 2014. We evaluated clinical data, surgical approach, clinicopathological characteristics of the GSMT (size, location, histopathological and immunohistochemical exams), outcome and patients follow-up...
March 2016: Revista do Colégio Brasileiro de Cirurgiões
https://www.readbyqxmd.com/read/25651342/multivariate-analysis-for-animal-selection-in-experimental-research
#13
Renan Mercuri Pinto, Dijon Henrique Salomé de Campos, Loreta Casquel Tomasi, Antonio Carlos Cicogna, Katashi Okoshi, Carlos Roberto Padovani
BACKGROUND: Several researchers seek methods for the selection of homogeneous groups of animals in experimental studies, a fact justified because homogeneity is an indispensable prerequisite for casualization of treatments. The lack of robust methods that comply with statistical and biological principles is the reason why researchers use empirical or subjective methods, influencing their results. OBJECTIVE: To develop a multivariate statistical model for the selection of a homogeneous group of animals for experimental research and to elaborate a computational package to use it...
February 2015: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/12812116/-ureteral-stenosis-after-kidney-transplantation-treatment-with-a-self-expanding-metal-prosthesis
#14
B Pozo Mengual, F J Burgos Revilla, A Linares Quevedo, G Briones Mardones, J Pascual Santos, R Marcén Letosa, T Llorente
OBJECTIVE: To determinate the efficacy in the treatment of ureteral estenoses after renal transplantation with metallic self-expandable stent. MATERIALS AND METHODS: From october of 1995 to april of 2002, 8 ureteral obstruction post renal transplantation have treated by means of implants of a metallic self-expandable stent (6 men and 2 women). The average time of pursuit was of 30 months (rank 2-53 months). In this work the severity and location of the estenosis are analysed, the method of implant of the stent, the permeability of the same one, the levels of creatinine pre and postimplant and the complications derived from the same one...
March 2003: Actas Urologicas Españolas
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