|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Helicobacter pylori in dental plaque and stomach of patients from Northern Brazil显示文摘AIM: To establish whether virulence factor genes vacA and cagA are present in Helicobacter pylori (H. pylori) retrieved from gastric mucosa and dental plaque in pa-tients with dyspepsia. METHODS: Cumulative dental plaque specimens and gastric biopsies were submitted to histological exami-nation, rapid urease test and polymerase chain reac-tion (PCR) assays to detect the presence of cagA and vacA polymorphisms.RESULTS: Detection of H. pylori from dental plaque and gastric biopsy samples was greater by PCR com-pared to histological examination and the rapid ure-ase test. DNA from H. pylori was detected in 96% of gastric mucosa samples and in 72% of dental plaque samples. Sixty-three (89%) of 71 dental plaque sam-ples that were H. pylori-positive also exhibited identical vacA and cagA genotypes in gastric mucosa. The most common genotype was vacAs1bm1 and cagA positive, either in dental plaque or gastric mucosa. These viru-lent H. pylori isolates were involved in the severity of clinical outcome.CONCLUSION: These pathogenic strains were found simultaneously in dental plaque and gastric mucosa, which suggests that gastric infection is correlated with the presence of H. pylori in the mouth. | Mnica Baraúna Assumpo Luisa Caricio Martins Hivana Patricia Melo Barbosa Katarine Antonia dos Santos Barile Sintia Silva de Almeida Paulo Pimentel Assumpo Tereza Cristina de Oliveira Corvelo | 2010 | World Journal of Gastroenterology2010，16，24： | 29 |
| 2 | Oral purgative and simethicone before small bowel capsule endoscopy显示文摘AIM:To evaluate small bowel cleansing quality,diagnostic yield and transit time,comparing three cleansing protocols prior to capsule endoscopy.METHODS:Sixty patients were prospectively enrolled and randomized to one of the following cleansing protocols:patients in Group A underwent a 24 h liquid diet and overnight fasting;patients in Group B followed protocol A and subsequently were administered 2 L of polyethylene glycol(PEG) the evening before the procedure;patients in Group C followed protocol B and were additionally administered 100 mg of simethicone 30 min prior to capsule ingestion.Small bowel cleansing was independently assessed by two experienced endoscopists and classified as poor,fair,good or excellent according to the proportion of small bowel mucosa under perfect conditions for visualization.When there was no agreement between the two endoscopists,the images were reviewed and discussed until a consensus was reached.The preparation was considered acceptable if > 50% or adequate if > 75% of the mucosa was in perfect cleansing condition.The amount of bubbles was assessed independently and it was considered significant if it prevented a correct interpretation of the images.Positive endoscopic findings,gastric emptying time(GET) and small bowel transit time(SBTT) were recorded for each examination.RESULTS:There was a trend favoring Group B in achieving an acceptable(including fair,good or excellent) level of cleansing(Group A:65%;Group B:83.3%;Group C:68.4%) [P = not significant(NS)] and favoring Group C in attaining an excellent level of cleansing(Group A:10%;Group B:16.7%;Group C:21.1%)(P = NS).The number of patients with an adequate cleansing of the small bowel,corresponding to an excellent or good classification,was 5(25%) in Group A,5(27.8%) in Group B and 4(21.1%) in Group C(P = 0.892).Conversely,7 patients(35%) in Group A,3 patients(16.7%) in Group B and 6 patients(31.6%) in Group C were considered to have poor small bowel cleansing(P = 0.417),with significant fluid or debris such that the examination was unreliable.The proportion of patients with a significant amount of bubbles was 50% in Group A,27.8% in Group B and 15.8% in Group C(P = 0.065).This was significantly lower in Group C when compared to Group A(P = 0.026).The mean GET was 27.8 min for Group A,27.2 min for Group B and 40.7 min for Group C(P = 0.381).The mean SBTT was 256.4 min for Group A,256.1 min for Group B and 258.1 min for Group C(P = 0.998).Regarding to the rate of complete examinations,the capsule reached the cecum in 20 patients(100%) in Group A,16 patients(88.9%) in Group B and 17 patients(89.5%) in Group C(P = 0.312).A definite diagnosis based on relevant small bowel endoscopic lesions was established in 60% of the patients in Group A(12 patients),44.4% in Group B(8 patients) and 57.8% in Group C(11 patients)(P = 0.587).CONCLUSION:Preparation with 2 L of PEG before small bowel capsule endoscopy(SBCE) may improve small bowel cleansing and the quality of visualization.Simethicone may further reduce intraluminal bubbles.No significant differences were found regarding GET,SBTT and the proportion of complete exploration or diagnostic yield among the three different cleansing protocols. | Bruno Joel Ferreira Rosa Mara Barbosa Joana Magalhes Ana Rebelo Maria Joo Moreira José Cotter | 2013 | World Journal of Gastrointestinal Endoscopy2013，5，2： | 21 |
| 3 | Interleukin-1 and TNF-α polymorphisms and Helicobacter pylori in a Brazilian Amazon population显示文摘AIM:To study the association between Interleukin-1(IL-1)and tumor necrosis factor(TNF)-αpolymorphisms,infection by Helicobacter pylori(H pylori)and the development of gastrointestinal diseases.METHODS:Genomic DNA was extracted from the peripheral blood of 177 patients with various gastrointestinal diseases and from 100 healthy volunteers.The polymorphisms in IL-1βand TNF-αgenes were analyzed using the polymerase chain reactionrestriction fragment length polymorphism method(PCRRFLP)and those from IL-1RN with PCR.The presence of infection due to H pylori and the presence of the CagA toxin were detected by serology.The histopathological parameters in the gastric biopsies of the patients were according to the Sydney classification.RESULTS:A comparison of the frequencies of the different polymorphisms studied among the patients and the control group demonstrated that the allele IL1RN*2 was more frequent among patients with gastric ulcers and adenocarcinoma.Carriers of the allele ILRN*2 and those with reactive serology for anti-CagA IgG had a greater risk of developing peptic ulcer and gastric adenocarcinoma,as well as a higher degree of inflammation and neutrophilic activity in the gastric mucosa.CONCLUSION:Our results indicate a positive association between IL-1RN gene polymorphism and infection by positive H pylori CagA strains and the development of gastric ulcers and adenocarcinoma. | Hivana Patricia Melo Barbosa Luisa Caricio Martins Sidney Emanuel Batista dos Santos Samia Demachki Mnica Baraúna Assumpo Charliana Damasceno Arago Tereza Cristina de Oliveira Corvelo | 2009 | World Journal of Gastroenterology2009，15，12： | 17 |
| 4 | Computed tomography-guided percutaneous core needle biopsy in pancreatic tumor diagnosis显示文摘AIM: To evaluate the techniques, results, and complications related to computed tomography(CT)-guided percutaneous core needle biopsies of solid pancreatic lesions.METHODS: CT-guided percutaneous biopsies of solid pancreatic lesions performed at a cancer reference center between January 2012 and September 2013 were retrospectively analyzed. Biopsy material was collected with a 16-20 G Tru-Core needle(10-15 cm; Angiotech, Vancouver, CA) using a coaxial system and automatic biopsy gun. When direct access to the lesion was not possible, indirect(transgastric or transhepatic) access or hydrodissection and/or pneumodissection maneuvers were used. Characteristics of the patients, lesions, procedures, and histologic results were recorded using a standardized form. RESULTS: A total of 103 procedures included in the study were performed on patients with a mean age of 64.8 year(range: 39-94 year). The mean size of the pancreatic lesions was 45.5 mm(range: 15-195 mm). Most(75/103, 72.8%) procedures were performed via direct access, though hydrodissection and/or pneumodissection were used in 22.2%(23/103) of cases and indirect transhepatic or transgastric access was used in 4.8%(5/103) of cases. Histologic analysis was performed on all biopsies, and diagnoses were conclusive in 98.1%(101/103) of cases, confirming3.9%(4/103) of tumors were benign and 94.2%(97/103) were malignant; results were atypical in 1.9%(2/103) of cases, requiring a repeat biopsy to diagnose a neuroendocrine tumor, and surgical resection to confirm a primary adenocarcinoma. Only mild/moderate complications were observed in 9/103 patients(8.7%),and they were more commonly associated with biopsies of lesions located in the head/uncinate process(n =8), than of those located in the body/tail(n = 1) of the pancreas, but this difference was not significant.CONCLUSION: CT-guided biopsy of a pancreatic lesion is a safe procedure with a high success rate, and is an excellent option for minimally invasive diagnosis. | Chiang J Tyng Maria Fernanda A Almeida Paula NV Barbosa Almir GV Bitencourt José Augusto AG Berg Macello S Maciel Felipe JF Coimbra Luiz Henrique O Schiavon Maria Dirlei Begnami Marcos D Guimares Charles E Zurstrassen Rubens Chojniak | 2015 | World Journal of Gastroenterology2015，21，12： | 14 |
| 5 | Long noncoding RNAs:a missing link in osteoporosis显示文摘Osteoporosis is a systemic disease that results in loss of bone density and increased fracture risk,particularly in the vertebrae and the hip.This condition and associated morbidity and mortality increase with population ageing.Long noncoding(lnc)RNAs are transcripts longer than 200 nucleotides that are not translated into proteins,but play important regulatory roles in transcriptional and post-transcriptional regulation.Their contribution to disease onset and development is increasingly recognized.Herein,we present an integrative revision on the studies that implicate lncRNAs in osteoporosis and that support their potential use as therapeutic tools.Firstly,current evidence on lncRNAs involvement in cellular and molecular mechanisms linked to osteoporosis and its major complication,fragility fractures,is reviewed.We analyze evidence of their roles in osteogenesis,osteoclastogenesis,and bone fracture healing events from human and animal model studies.Secondly,the potential of lncRNAs alterations at genetic and transcriptomic level are discussed as osteoporosis risk factors and as new circulating biomarkers for diagnosis.Finally,we conclude debating the possibilities,persisting difficulties,and future prospects of using lncRNAs in the treatment of osteoporosis. | Andreia Machado Silva Sara Reis Moura JoseHenrique Teixeira Mario Adolfo Barbosa Susana Gomes Santos Maria Ines Almeida | 2019 | Bone Research2019，7，1： | 13 |
| 6 | Fatty liver disease in severe obese patients:Diagnostic value of abdominal ultrasound显示文摘AIM:To evaluate the sensitivity and specificity of abdominal ultrasound (US) for the diagnosis of hepatic steatosis in severe obese subjects and its relation to histological grade of steatosis. METHODS: A consecutive series of obese patients, who underwent bariatric surgery from October 2004 to May 2005, was selected. Ultrasonography was performed in all patients as part of routine preoperative time and an intraoperative wedge biopsy was obtained at the beginning of the bariatric surgery. The US and histological findings of steatosis were compared, considering histology as the gold standard. RESULTS: The study included 105 patients. The mean age was 37.2 ± 10.6 years and 75.2% were female. The histological prevalence of steatosis was 89.5%. The sensitivity and specificity of US in the diagnosis of hepatic steatosis were, respectively, 64.9% (95% CI: 54.9-74.3) and 90.9% (95% CI: 57.1-99.5). The positive predictive value and negative predictive value were, respectively, 98.4% (95% CI: 90.2-99.9) and 23.3% (95% CI: 12.3-39.0). The presence of steatosis onUS was associated to advanced grades of steatosis on histology (P = 0.016). CONCLUSION: Preoperative abdominal US in our series has not shown to be an accurate method for the diagnosis of hepatic steatosis in severe obese patients. Until another non-invasive method demonstrates better sensitivity and specificity values, histological evaluation may be recommended to these patients undergoing bariatric surgery. | Alessandro de Moura Almeida Helma Pinchemel Cotrim Daniel Batista Valente Barbosa Luciana Gordilho Matteoni de Athayde Adimeia Souza Santos Almir Galvo Vieira Bitencourt Luiz Antonio Rodrigues de Freitas Adriano Rios Erivaldo Alves | 2008 | World Journal of Gastroenterology2008，14，9： | 10 |
| 7 | Update on hepatitis B and C virus diagnosis显示文摘Viral hepatitis B and C virus(HBV and HCV) are responsible for the most of chronic liver disease worldwide and are transmitted by parenteral route, sexual and vertical transmission. One important measure to reduce the burden of these infections is the diagnosis of acute and chronic cases of HBV and HCV. In order to provide an effective diagnosis and monitoring of antiviral treatment, it is important to choose sensitive, rapid, inexpensive, and robust analytical methods. Primary diagnosis of HBV and HCV infection is made by using serological tests for detecting antigens and antibodies against these viruses. In order to confirm primary diagnosis, to quantify viral load, to determine genotypes and resistance mutants for antiviral treatment, qualitative and quantitative molecular tests are used. In this manuscript, we review the current serological and molecular methods for the diagnosis of hepatitis B and C. | Livia Melo Villar Helena Medina Cruz Jakeline Ribeiro Barbosa Cristianne Sousa Bezerra Moyra Machado Portilho Letícia de Paula Scalioni | 2015 | World Journal of Virology2015，4，4： | 9 |
| 8 | Fetal brain tumors:Prenatal diagnosis by ultrasound and magnetic resonance imaging显示文摘Congenital central nervous system tumors diagnosed during pregnancy are rare, and often have a poor prognosis. The most frequent type is the teratoma. Use of ultrasound and magnetic resonance image allows the suspicion of brain tumors during pregnancy. However, the definitive diagnosis is only confirmed after birth by histology. The purpose of this mini-review article is to describe the general clinical aspects of intracranial tumors and describe the main fetal brain tumors. | Herbene Jose Milani Edward Araujo Junior Sergio Cavalheiro Patrícia Soares Oliveira Wagner Jou Hisaba Enoch Quindere Sa Barreto Maurício Mendes Barbosa Luciano Marcondes Nardozza Antonio Fernandes Moron | 2015 | World Journal of Radiology2015，7，1： | 7 |
| 9 | Value of a newly sequenced bacterial genome显示文摘Next-generation sequencing(NGS) technologies have made high-throughput sequencing available to medium- and small-size laboratories, culminating in a tidal wave of genomic information. The quantity of sequenced bacterial genomes has not only brought excitement to the field of genomics but also heightened expectations that NGS would boost antibacterial discovery and vaccine development. Although many possible drug and vaccine targets have been discovered, the success rate of genome-based analysis has remained below expectations. Furthermore, NGS has had consequences for genome quality, resulting in an exponential increase in draft(partial data) genome deposits in public databases. If no further interests are expressed for a particular bacterial genome, it is more likely that the sequencing of its genome will be limited to a draft stage, and the painstaking tasks of completing the sequencing of its genome and annotation will not be undertaken. It is important to know what is lost when we settle for a draft genome and to determine the 'scientific value' of a newly sequenced genome. This review addresses the expected impact of newly sequenced genomes on antibacterial discovery and vaccinology. Also, it discusses the factors that could be leading to the increase in the number of draft deposits and the consequent loss of relevant biological information. | Eudes GV Barbosa Flavia F Aburjaile Rommel TJ Ramos Adriana R Carneiro Yves Le Loir Jan Baumbach Anderson Miyoshi Artur Silva Vasco Azevedo | 2014 | World Journal of Biological Chemistry2014，5，2： | 7 |
| 10 | Quantitative Study on Nonmetallic Inclusion Particles in Steels by Automatic Image Analysis With Extreme Values Method显示文摘The presence of nonmetallic inclusion particles which appear during steelmaking process is harmful to the properties of steels,which is mainly as a function of some aspects such as size,volume fraction,shape,and distribution of these particles.The automatic image analysis technique is one of the most important tools for the quantitative determination of these parameters.The classical Student approach and the Extreme Values Method(EVM) were used for the inclusion size and shape determination and the evaluation of distance between the inclusion particles.The results thus obtained indicated that there were significant differences in the characteristics of the inclusion particles in the analyzed products.Both methods achieved results with some differences,indicating that EVM could be used as a faster and more reliable statistical methodology. | Cássio Barbosa José Brant de Campos Jneo Lopes do Nascimento Iêda Maria Vieira Caminha | 2009 | Journal of Iron and Steel Research(International)2009，16，4： | 7 |
| 11 | Impact of laparoscopic surgery training laboratory on surgeon's performance显示文摘Minimally invasive surgery has been replacing the open standard technique in several procedures. Similar or even better postoperative outcomes have been described in laparoscopic or robot-assisted procedures when compared to open surgery. Moreover, minimally invasive surgery has been providing less postoperative pain, shorter hospitalization, and thus a faster return to daily activities. However, the learning curve required to obtain laparoscopic expertise has been a barrier in laparoscopic spreading. Laparoscopic surgery training laboratory has been developed to aid surgeons to overcome the challenging learning curve. It may include tutorials, inanimate model skills training(box models and virtual reality simulators), animal laboratory, and operating room observation. Several different laparoscopic courses are available with specific characteristics and goals. Herein, we aim to describe the activities performed in a dry and animal-model training laboratory and to evaluate the impact of different kinds of laparoscopic surgery training courses on surgeon's performance. Several tasks are performed in dry and animal laboratory to reproduce a real surgery. A short period of training can improve laparoscopic surgical skills, although most of times it is not enough to confer laparoscopic expertise for participants. Nevertheless, this short period of training is able to increase the laparoscopic practice of surgeons in their communities. Full laparoscopic training in medical residence or fellowship programs is the best way of stimulating laparoscopic dissemination. | Fabio C M Torricelli Joao Arthur B A Barbosa Giovanni S Marchini | 2016 | World Journal of Gastrointestinal Surgery2016，8，11： | 6 |
| 12 | Cirrhotic cardiomyopathy:Isn't stress evaluation alwaysrequired for the diagnosis?显示文摘AIM:To describe the proportion of patients with cirrhotic cardiomyopathy(CCM) evaluated by stress echocardiography and investigating its association with the severity of liver disease.METHODS:A cross-sectional study was conducted.Cirrhotic patients without risk factors for cardiovascular disease were included.Data regarding etiology and severity of liver disease(Child-Pugh score and model for end-stage liver disease),presence of ascites and gastroesophageal varices,pro-brain natriuretic peptide(proBNP) and corrected QT(QTc) interval were collected.Dobutamine stress echocardiography(conventional and tissue Doppler imaging) was performed.CCM was considered present when diastolic and/or systolic dysfunction was diagnosed at rest or after pharmacological stress.Therapy interfering with cardiovascular system was suspended 24 h before the examination.RESULTS:Twenty-six patients were analyzed,17(65.4%) Child-Pugh A,mean model for end-stage liver disease(MELD) score of 8.7.The global proportion of patients with CCM was 61.5%.At rest,only 2(7.7%)patients had diastolic dysfunction and none of the patients had systolic dysfunction.Dobutamine stress echocardiography revealed the presence of diastolic dysfunction in more 6(23.1%) patients and of systolic dysfunction in 10(38.5%) patients.QTc interval prolongation was observed in 68.8%of the patients and increased pro-BNP levels in 31.2%of them.There was no association between the presence of CCM and liver impairment assessed by Child-Pugh score or MELD(P= 0.775,P= 0.532,respectively).Patients with QTc interval prolongation had a significant higher rate of gastroesophageal varices comparing with those without QTc interval prolongation(95.0%vs 50.0%,P= 0.028).CONCLUSION:CCM is a frequent complication of cirrhosis that is independent of liver impairment.Stress evaluation should always be performed,otherwise it will remain an underdiagnosed condition. | mara barbosa joana guardado carla marinho bruno rosa isabel quelhas antónio lourenco josécotter | 2016 | World Journal of Hepatology2016，8，3： | 5 |
| 13 | Multi-element determination of Cu, Fe, Ni and Zn content in vegetable oils samples by high-resolution continuum source atomic absorption spectrometry and microemulsion sample preparation显示文摘 | Luana S. Nunes José T.P. Barbosa Andréa P. Fernandes Valfredo A. Lemos Walter N.L. dos Santos Maria Gra?as A. Korn Leonardo S.G. Teixeira | 2011 | Food Chemistry2011，，2： | 4 |
| 14 | Multielement determination in orange juice by ICP-MS associated with data mining for the classification of organic samples显示文摘The aim of this study was to discriminate organic from conventional orange juice based on chemical elements and data mining applications.A comprehensive sampling of organic and conventional oranges was carried out in Borborema,state of Sao Paulo,Brazil.The fruits of the variety Valencia(Citrus sinensis(L.)Osbeck)budded on Rangpur lime(Citrus limonia Osbeck)were analyzed.Eleven chemical elements were determined in 57 orange samples grown in organic and conventional systems.In order to classify these samples,data mining techniques(Support Vector Machine(SVM)and Multilayer Perceptron(MLP))were combined with feature selection(F-score and chi-squared).SVM with chi-squared had a better performance compared with the other techniques because it reached 93.00% accuracy using only seven chemical components(Cu,Cs,Zn,Al,Mn,Rb and Sr),and correctly classified 96.73% of the samples grown in an organic system. | Christian Turra Marcio Dias de Lima Elisabete A.De Nadai Fernandes Marcio Arruda Bacchi Fernando Barbosa Jr. Rommel Barbosa | 2017 | Information Processing in Agriculture2017，4，3： | 3 |
| 15 | Rheumatoid arthritis: Nuclear medicine state-of-the-art imaging显示文摘Rheumatoid arthritis(RA)is an autoimmune disease,which is associated with systemic and chronic inflammation of the joints,resulting in synovitis and pannus formation.For several decades,the assessment of RA has been limited to conventional radiography,assisting in the diagnosis and monitoring of disease.Nevertheless,conventional radiography has poor sensitivity in the detection of the inflammatory process that happens in the initial stages of RA.In the past years,new drugs that significantly decrease the progression of RA have allowed a more efficient treatment.Nuclear Medicine provides functional assessment of physiological processes and therefore has significant potential for timely diagnosis and adequate follow-up of RA.Several single photon emission computed tomography(SPECT)and positron emission tomography(PET)radiopharmaceuti-cals have been developed and applied in this field.The use of hybrid imaging,which permits computed tomography(CT)and nuclear medicine data to be acquired and fused,has increased even more the diagnostic accuracy of Nuclear Medicine by providing anatomical localization in SPECT/CT and PET/CT studies.More recently,fusion of PET with magnetic resonance imaging(PET/MRI)was introduced in some centers and demonstrated great potential.In this article,we will review studies that have been published using Nuclear Medicine for RA and examine key topics in the area. | Paulo Henrique Rosado-de-Castro Sergio Augusto Lopes de Souza Dangelo Alexandre Lea Mirian Barbosa da Fonseca Bianca Gutfilen | 2014 | World Journal of Orthopedics2014，5，3： | 3 |
| 16 | Clear lens extraction in angle-closure glaucoma patients显示文摘AIM: To describe the results of 5 consecutive cases of clear lens extraction in angle closure patients for the treatment of elevated intraocular pressure (IOP). ·METHODS: Retrospective observational case series. All angle closure patients were on two or more topical glaucoma medications and had prior laser iridotomy. Eyes underwent clear lens extraction by phacoemu - lsification with intraocular lens implantation. ·RESULTS: All five patients in this case series carried the diagnosis of angle -closure glaucoma and had uncontrolled IOP prior to surgery despite topical medications. After clear lens extraction three of the cases had good IOP control (IOP <22mmHg) without the need for topical medications. In one case the IOP was better controlled after surgery, however, topical medications were required. The desired IOP was not met in one case despite restarting maximum topical therapy. ·CONCLUSION: This case series suggests that there may be a role for therapeutic clear lens extraction in select cases of angle-closure glaucoma. | Diego T. Q. Barbosa Ashleigh L. Levison Shan C. Lin | 2013 | International Journal of Ophthalmology(English edition)2013，6，3： | 3 |
| 17 | Psychotropic drugs and liver disease:A critical review of pharmacokinetics and liver toxicity显示文摘The liver is the organ by which the majority of sub-stances are metabolized, including psychotropic drugs. There are several pharmacokinetic changes in end-stage liver disease that can interfere with the metabolization of psychotropic drugs. This fact is particularly true in drugs with extensive first--pass metabolism, highly protein bound drugs and drugs depending on phase I hepatic metabolic reactions. Psychopharmacological agents are also associated with a risk of hepatotoxicity. The evidence is insufficient for definite conclusions regarding the prevalence and severity of psychiatric drug-induced liver injury. High-risk psychotropics are not advised when there is pre-existing liver disease, and after starting a psychotropic agent in a patient with hepatic impairment, frequent liver function/lesion monitoring is advised. The authors carefully review the pharmacokinetic disturbances induced by end-stage liver disease and the potential of psychopharmacological agents for liver toxicity. | Diogo Telles-Correia António Barbosa Helena Cortez-Pinto Carlos Campos Nuno B F Rocha Sérgio Machado | 2017 | World Journal of Gastrointestinal Pharmacology and Therapeutics2017，8，1： | 3 |
| 18 | Femtosecond laser-assisted deep anterior lamellar keratoplasty in phototherapeutic keratectomy versus the big-bubble technique in keratoconus显示文摘AIM:To compare the functional and anatomic results of femtosecond laser(FSL)-assisted deep anterior lamellar keratoplasty(DALK) associated with phototherapeutic keratectomy(PTK) and FSL-assisted DALK performed using the big-bubble technique in keratoconus.METHODS:During the first phase of the study,an electron microscopy histopathology pilot study was conducted that included four unsuitable donor corneas divided into two groups:in FSL group,FSL lamellar cuts were performed on two corneas and in FSL+PTK group,PTK was performed at the stromal beds of two corneas after FSL lamellar cuts were made.During the second phase of the study,a randomized clinical trial was conducted that included two treatment groups of patients with keratoconus:group 1(n=14 eyes) underwent FSL-assisted DALK associated with PTK and group 2(n=12 eyes) underwent FSL-assisted DALK associated with the bigbubble technique.The main outcome measures were the postoperative visual acuity(VA) and optical coherence tomography(OCT) measurements,confocal microscopic findings,and contrast sensitivity.RESULTS:In the pilot study,histopathology showed a more regular stromal bed in the FSL+PTK group.In the clinical trial,group 1 had significantly worse best spectaclecorrected VA and contrast sensitivity(P<0.05 for both comparisons).The residual stromal bed measured by OCT was significantly(P<0.05) thicker in group 1.Confocal microscopy detected opacities only at the donor-receptor interface in group 1.CONCLUSION:Patients with keratoconus treated with FSL-assisted DALK performed using the big-bubble technique fare better than treated with FSL-assisted DALK associated with PTK. | Jarbas Pereira de Macedo Lauro Augusto de Oliveira Flavio Hirai Luciene Barbosa de Sousa | 2018 | International Journal of Ophthalmology(English edition)2018，11，5： | 2 |
| 19 | Evaluation of Pesticide Residues in Mango by a Multi-residue Analysis and GC/MS Triple Quadrupole显示文摘 | Claudia Helena Pastor Ciscato Kumi Shiota Ozawa Claudia Maria Barbosa Amir Bertoni Gebara | 2015 | Journal of Agricultural Science and Technology(B)2015，5，8： | 2 |
| 20 | Myocardial function and energy metabolism in carnitine-deficient rats显示文摘 | C. E. Zaugg M. Spaniol P. Kaufmann M. Bellahcene V. Barbosa M. Tolnay P. T. Buser S. Kr?henbühl | 2003 | Cellular and Molecular Life Sciences2003，，4： | 2 |
您所在的机构暂未开通此部分的功能，请联系管理员