Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 13 de 13
Filter
1.
Article in English | MEDLINE | ID: mdl-37277257

ABSTRACT

INTRODUCTION: The time elapsed from diagnosis to hematopoietic stem cell transplantation (HSCT) is influenced by numerous factors. In Brazil, patients using the public health system are also dependent on the availability of HSCT-specific beds in the hematology ward. OBJECTIVE AND METHODS: We conducted a cohort study of listed patients who underwent allogeneic HSCT at a Brazilian public hospital to investigate the impact of the waitlist time on post-HSCT survival. RESULTS: The median time from diagnosis to HSCT was 19 months (IQR, 10 - 43), of which 6 months (IQR, 3 - 9) were spent on the waitlist. The time on the waitlist for HSCT appeared to influence mainly the survival of adult patients (≥ 18 years), with an increasing risk according to this time (RR, 3.53 and 95%CI, 1.81 - 6.88 for > 3 and ≤ 6 months; RR 5.86 and 95%CI, 3.26 - 10.53 for > 6 and ≤ 12 months, and; RR 4.24 and 95%CI, 2.32 - 7.75 for > 12 months). CONCLUSION: Patients who remained on the waitlist for less than 3 months had the highest survival (median survival, 856 days; IQR, 131 - 1607). The risk of reduced survival was about 6-fold higher (95%CI, 2.8 - 11.5) in patients with malignancies.

2.
Pediatr Transplant ; 24(7): e13789, 2020 11.
Article in English | MEDLINE | ID: mdl-32757316

ABSTRACT

The choice of alternative donors for HCT for patients without an HLA-matched related donor depends on several factors. We compared major HCT outcomes in 212 consecutive children transplanted at 11 centers in Brazil for acute leukemia or MDS from an HLA-matched unrelated donor (MUD, n = 95), mismatched unrelated donor (MMUD, n = 47) or unrelated umbilical cord blood (UCB, n = 70). Most had ALL (61%), bone marrow (57%) as the graft source and 95% received a MAC regimen. The 3-year OS probability were 57, 55, and 37% after HCT from MUD, MMUD, and UCB, respectively (HR 1.68, 95%CI 1.07-2.63; P = .02). In comparison with MUD, OS was similar after transplantation of a ≥ 6/8 HLA-matched or a high cell dose (>5 × 107 TNC/kg) CB unit (HR 1.41, 95%CI 0.88-2.27; P = .15). NRM was higher for UCB (HR 3.90, 95%CI 1.43-10.7; P = .01) but not for MMUD (HR 1.03, 95%CI 0.53-2.00; P > .20). Advanced disease (HR 2.05, 95%CI 1.26-3.33; P < .001) and UCB with high probability of being < 6/8 HLA-matched (HR 5.34, 95%CI 2.0-13.9; P < .001) were associated with higher mortality. Relapse and acute GVHD were similar among groups, while PGF was higher among UCB transplants (P = .002) and chronic GVHD among MMUD group (HR 2.88, 95% CI 1.05-7.88; P = .04). Our results suggest that in Brazil HCT outcomes performed with MMUD and MUD donors were comparable, while with UCB units < 6/8 HLA-matched were associated with higher NRM for children with acute leukemia or MDS.


Subject(s)
Cord Blood Stem Cell Transplantation/methods , Hematopoietic Stem Cell Transplantation/methods , Leukemia, Myeloid, Acute/therapy , Myelodysplastic Syndromes/therapy , Brazil/epidemiology , Child , Female , Graft Survival , Humans , Incidence , Leukemia, Myeloid, Acute/epidemiology , Male , Myelodysplastic Syndromes/epidemiology , Retrospective Studies , Treatment Outcome
4.
Case Rep Dent ; 2019: 8152793, 2019.
Article in English | MEDLINE | ID: mdl-31396421

ABSTRACT

Ankylosed teeth may have a significant esthetic and functional impact especially at the anterior segment of the upper arch. Treatment of ankylosed teeth is challenging. The objective of this case report is to describe a clinical case in which an ankylosed tooth was treated with the use of osteogenic distraction associated with simplified orthodontic biomechanics. A 17-year-old female Caucasian patient presented with a Class II malocclusion, severe maxillary dental crowding, moderate mandibular dental crowding, anterior open bite, upper midline deviation to the right, and upper right central incisor in infraocclusion due to ankylosis. Treatment involved the use of the ankylosed tooth as anchorage for the distalization of the right upper segment to correct the Class II malocclusion and to create space prior to surgery. After one week of surgical osteotomy, traction of the tooth and bone segment was initiated with the use of intermaxillary elastics. The ankylosed tooth was moved to the desired position. Bone formation and mucogingival tissue adaptation were observed. Thus, esthetic and functional improvement was achieved. Osteogenic distraction associated with simplified orthodontic biomechanics is an alternative to the treatment of ankylosed teeth which can replace the use of distractor screws, making treatment simpler and more accessible.

5.
Psicol. argum ; 36(94): 458-478, out.-dez. 2018. tab
Article in Portuguese | Index Psychology - journals | ID: psi-72197

ABSTRACT

A presente pesquisa, de caráter quantitativo, teve como objetivo central conhecer o perfil e a experiência dos jovens em seus espaços de lazer e tempo livre em duas realidades distintas: estudantes de escolas públicas e privadas. Participaram da pesquisa 561 jovens, com idades entre 14 e 19 anos, sendo 291 de escolas públicas e 270 de escolas particulares. Como principais resultados, verificou-se uma forte inserção da mídia como forma de ocupar o tempo livre pelos dois grupos investigados, e também uma maior frequência de atividades de lazer realizadas por jovens de escolas particulares. Diante dos resultados, concluiu-se que os contextos sociais, culturais e econômicos acabam influenciando diretamente as experiências desse tempo vivenciado pelos participantes.


This quantitative research aimed to know the profile and experience of young people in their leisure and free time in two different realities: students from public and private schools. A total of 561 young people, aged 14 to 19 years old, 291 from public schools and 270 from private schools participated in the study. The main results were the strong insertion of the media as a form to occupy free time by the two groups investigated, and also a higher frequency of leisure activities performed by young people from private schools. Given the results, it was concluded that the social, cultural and economic context send up directly influencing the experiences of this time lived by the participants.(AU)


Subject(s)
Humans , Male , Female , Adolescent , Young Adult , Adolescent , Schools , Young Adult , Leisure Activities , Social Media
6.
Rev. dor ; 15(2): 145-151, Apr-Jun/2014. tab
Article in English | LILACS | ID: lil-713037

ABSTRACT

BACKGROUND AND OBJECTIVES: Nursing interventions are any care based on nurses' judgment and clinical knowledge, based on a scientifically supported action, carried out and planned for patients' benefit. These are very important to control pain since pain, when inadequately treated, affects the quality of life of patients and caregivers in physical, psychological, social and spiritual dimensions. So, this study aimed at identifying nursing interventions to handle pain and whether they relate to those proposed by the Nursing Interventions Classification. CONTENTS: This is an integrative literature review, carried out in LILACS, Scielo and Medline databases. Nine articles published between 2001 and 2011 were selected. These articles describe nursing interventions to handle pain in different contexts. CONCLUSION: Most nursing interventions mentioned by the articles are related to those described by the Nursing Interventions Classification. The scarcity of clinical studies related to nursing interventions to handle pain was also observed. .


JUSTIFICATIVA E OBJETIVOS: As intervenções de enfermagem referem-se a qualquer cuidado baseado no julgamento e conhecimento clínico do enfermeiro tendo por base uma ação fundamentada cientificamente, realizada e prevista em benefício do paciente. Estas assumem grande importância no controle da dor, uma vez que a dor, quando não tratada adequadamente, afeta a qualidade de vida dos pacientes e de seus cuidadores nas dimensões física, psicológica, social e espiritual. Sendo assim, o objetivo deste estudo foi conhecer as intervenções utilizadas pelos enfermeiros para o manuseio da dor e se estas se relacionam com as propostas pela Nursing Interventions Classification. CONTEÚDO: Trata-se de uma revisão integrativa da literatura, realizada nas bases de dados LILACS, Scielo e Medline. Foram selecionados nove artigos publicados entre 2001 e 2011. Esses artigos descrevem intervenções de enfermagem prestadas para o manuseio da dor em diferentes contextos. CONCLUSÃO: A maioria das intervenções de enfermagem citadas nos artigos possui relação com as descritas pela Nursing Interventions Classification. Também foi observada a carência de estudos clínicos relacionados às intervenções de enfermagem para manuseio da dor. .

7.
Rev Lat Am Enfermagem ; 20(3): 504-10, 2012.
Article in English, Portuguese, Spanish | MEDLINE | ID: mdl-22991112

ABSTRACT

The objective of this study was to validate the defining characteristics for the nursing diagnosis of Fatigue in adult oncological patients. It is a cross-sectional, descriptive study with a quantitative perspective, and its type is diagnostic content validation. Data collection was carried out in a University Hospital. The sample was made up of 35 expert nurses. The instrument used was subdivided into four parts. The data was analyzed by descriptive statistics. 15 defining characteristics were identified, considered secondary indicators. With an average weighting of less than 0.50, four defining characteristics were excluded. The defining characteristic Impaired social interaction, added to those described by NANDA-I after review of the literature, was validated with a weighted average of 0.71. It was concluded that the subjectivity of the defining characteristics and the difficulty nurses have in recognizing them influence the identification of this diagnosis.


Subject(s)
Fatigue/diagnosis , Fatigue/etiology , Neoplasms/complications , Nursing Diagnosis , Cross-Sectional Studies , Humans
8.
Rev. latinoam. enferm ; 20(3): 504-510, May-June 2012. ilus, tab
Article in English | LILACS, BDENF - Nursing | ID: lil-649691

ABSTRACT

The objective of this study was to validate the defining characteristics for the nursing diagnosis of Fatigue in adult oncological patients. It is a cross-sectional, descriptive study with a quantitative perspective, and its type is diagnostic content validation. Data collection was carried out in a University Hospital. The sample was made up of 35 expert nurses. The instrument used was subdivided into four parts. The data was analyzed by descriptive statistics. 15 defining characteristics were identified, considered secondary indicators. With an average weighting of less than 0.50, four defining characteristics were excluded. The defining characteristic Impaired social interaction, added to those described by NANDA-I after review of the literature, was validated with a weighted average of 0.71. It was concluded that the subjectivity of the defining characteristics and the difficulty nurses have in recognizing them influence the identification of this diagnosis.


O objetivo deste estudo foi validar as características definidoras do diagnóstico de Enfermagem, fadiga, em pacientes adultos oncológicos. Trata-se de estudo transversal e descritivo, em perspectiva quantitativa, do tipo validação de conteúdo diagnóstico. A coleta de dados foi realizada em um hospital universitário. Fizeram parte da amostra 35 enfermeiros peritos. Utilizou-se um instrumento subdividido em quatro partes. Os dados foram analisados por estatística descritiva. Identificaram-se 15 características definidoras, consideradas indicadores secundários. Com média ponderada inferior a 0,50, foram excluídas quatro características definidoras. A característica definidora Interação Social Prejudicada, acrescentada às descritas pela NANDA-I, após revisão da literatura, foi validada com média ponderada de 0,71. Concluiu-se que a subjetividade das características definidoras do diagnóstico de Enfermagem, fadiga, e a dificuldade dos enfermeiros em reconhecê-las, influenciam na identificação desse diagnóstico.


Este estudio tiene como objetivo validar las características definidoras del diagnóstico de enfermería fatiga en pacientes adultos oncológicos. Se trata de un estudio transversal y descriptivo, en una perspectiva cuantitativa, del tipo validación de contenido diagnóstico. La recolección de datos fue realizada en un Hospital Universitario. Compusieron la muestra 35 enfermeros peritos. Para la recolección de datos, se utilizó un instrumento subdividido en cuatro partes. Los datos fueron analizados por estadística descriptiva. Se añadió las características definidoras Interacción Social Perjudicada. No se encontró principales indicadores. Fueron identificados 15 características definidoras como indicadores secundarios. Con media ponderada inferior a 0.50, se excluyeron cuatro CD's. La característica definidora Interacción Social Perjudicada, añadido a los descritos por la NANDA-I después de la revisión de la literatura, fue validada con media ponderada de 0.71. Se concluyó que la subjetividad de las características definidoras del diagnóstico de enfermería fatiga y la dificultad de los profesionales en reconocerlos influenció en la identificación de este diagnóstico.


Subject(s)
Humans , Fatigue/diagnosis , Fatigue/etiology , Neoplasms/complications , Nursing Diagnosis , Cross-Sectional Studies
9.
Porto Alegre; s.n; 2011. 76 p. tab.
Thesis in Portuguese | LILACS | ID: lil-598757

ABSTRACT

A enfermagem tem fortalecido seus conhecimentos e qualificado sua assistência através do uso da Sistematização da Assistência de Enfermagem (SAE). Parte integrante da SAE, os Diagnósticos de Enfermagem (DE) são a base para o planejamento dos cuidados de enfermagem. Na oncologia, além de evidenciar os problemas vivenciados pelos pacientes com câncer, os DEs podem melhorar a qualidade de vida destes a partir das intervenções apropriadas para cada caso. Afim de aprimorar os DEs, em especial os relacionados aos pacientes oncológicos, este estudo tem, como objetivo, validar o conteúdo das Características Definidoras(CD) do Diagnóstico de Enfermagem Fadiga, descritas pela NANDA-I, em pacientes adultos oncológicos de acordo com a avaliação de enfermeiros peritos. Para isso, realizou-se um estudo transversal e descritivo, em perspectiva quantitativa, do tipo validação de conteúdo diagnóstico (VCD), proposto por Fehring. A coleta de dados foi realizada em um Hospital Universitário. Fizeram parte da amostra, 35 enfermeiros assistenciais que foram selecionados através do método de seleção de peritos adaptado de Fehring, associado à amostragem probabilística intencional. Para a coleta de dados, utilizou-se um instrumento subdividido em quatro partes. Após a revisão de literatura, acrescentou-se, às 19 CDs pertencentes à NANDA-I, a CD Interação Social Prejudicada. Não foram identificados indicadores principais de acordo com a opinião dos peritos. Como indicadores secundários, foram identificadas 15 CDs, com média ponderada que variou entre 0,54 e 0,79. Com média ponderada inferior a 0,50, foram excluídas quatro CDs: concentração comprometida, desatento, desinteresse quanto ao ambiente que o cerca e letárgico. A CD incluída, Interação Social Prejudicada, foi validada com média ponderada de 0,71. Concluiu-se que a subjetividade das CDs do DE Fadiga e a dificuldade dos profissionais em reconhecê-las influenciam na identificação deste diagnóstico.


Subject(s)
Humans , Fatigue , Nursing Diagnosis , Oncology Nursing , Validation Studies as Topic
10.
Acta paul. enferm ; 23(3): 354-358, maio-jun. 2010.
Article in English, Portuguese | LILACS, BDENF - Nursing | ID: lil-554304

ABSTRACT

OBJETIVO: Identificar o registro de diagnóstico de enfermagem (DE) fadiga, as características definidoras e as intervenções de enfermagem em prontuários de pacientes oncológicos internados em hospital. MÉTODOS: Trata-se de um estudo transversal retrospectivo. A coleta de dados foi realizada em 107 prontuários de pacientes com diagnóstico médico de câncer, nos meses de agosto a dezembro de 2007. RESULTADOS: Foi encontrado um DE fadiga representando 0,9 por cento, entretanto, foram encontradas, nas evoluções diárias registradas pelo enfermeiro, as características definidoras do DE fadiga em 15,9 por cento dos prontuários. CONCLUSÃO: Apesar de identificar as características definidoras (sinais e sintomas), os enfermeiros não estabelecem o DE fadiga. Por esta razão, surgem dúvidas quanto à adequação das características definidoras deste diagnóstico Outros estudos sobre esta temática devem ser feitos para aprimorar a assistência de enfermagem ao paciente oncológico.


OBJECTIVE: To identify the health records of the diagnosis of fatigue (FD) registered by nurses, to define the characteristics of this FD and, to verify the nursing interventions, in the health records of patients with cancer, admitted into hospitals. METHODS: Is a retrospective crosssectional study. The data collection was performed in 107 health records of patients with medical diagnosis of cancer, from August to December 2007. RESULTS: It was found that the diagnosis of fatigue represented 0.9 percent, despite that in the daily developments recorded by the nurses, it was found the defining characteristics of fatigue in 15.9 percent of the patients. CONCLUSION: Despite identifying the defining characteristics (signs and symptoms), the nurses did not establish the fatigue diagnosis. For this reason, doubts appeared about the adequacy of the defining characteristics of this diagnosis. Further studies, on this subject, should be made to improve the nursing care of cancer patients.


OBJETIVO: Identificar el registro de diagnóstico de enfermería (DE) fatiga, también las características definidoras y las intervenciones de enfermería, en fichas de pacientes oncológicos internados en el hospital. METODOS: Se trata de un estudio transversal retrospectivo. La recolección de datos fue realizada en 107 fichas de pacientes con diagnóstico médico de cáncer, en los meses de agosto a diciembre de 2007. RESULTADOS: Fue encontrado un DE de fatiga representando 0,9 por ciento, entretanto, fueron encontradas, en las evoluciones diarias registradas por el enfermero, las características definidoras del DE de fatiga en 15,9 por ciento de las fichas. CONCLUSIÓN: A pesar de identificar las características definidoras (señales y síntomas), los enfermeros no establecieron el DE de fatiga. Por esta razón, surgen dudas sobre la adecuación de las características definidoras de este diagnóstico Otros estudios sobre esta temática deben ser realizados para perfeccionar la asistencia de enfermería al paciente oncológico.

11.
Article in Portuguese | LILACS, BDENF - Nursing | ID: biblio-1029305

ABSTRACT

Este artigo baseia-se em pesquisa qualitativa do tipo estudo de caso e tem, como objetivo, estabelecer Diagnósticos de Enfermagem (DE’s) de pacientes com neoplasia colorretal, em tratamento quimioterápico, a partir de suas necessidades humanas básicas alteradas. O projeto foi aprovado pelo Grupo de Pesquisa e Pós-Graduação do Hospital de Clínicas de Porto Alegre (HCPA) (projeto número 07-001). Foram analisados 11 sujeitos que estavam iniciando tratamento quimioterápico ambulatorial na Unidade de Quimioterapia Ambulatorial do HCPA. Foram estabelecidos 23 DE’s dos quais 15 estavam relacionados às necessidades fisiológicas, seis, às alterações nas necessidades de proteção e segurança e dois, relacionados às alterações nas necessidades de estima. A partir dos dados coletados, concluiu-se que os DE’s mais prevalentes estão relacionados às necessidades fisiológicas, a saber: Risco de infecção; Padrão de sono perturbado; Nutrição desequilibrada: abaixo das necessidades corporais; Integridade Tissular Prejudicada; e, Alto Risco para a Integridade da Pele Prejudicada. Em relação às alterações, nas necessidades de proteção e segurança, o DE Ansiedade foi o de maior prevalência. E, por fim, os DE’s estabelecidos a partir das necessidades de estima foram Imagem Corporal Perturbada e Impotência. De acordo com os resultados obtidos, é possível reafirmar a importância do DE como subsídio para uma assistência de enfermagem voltada ao paciente, podendo interferir, de maneira eficaz, individualizada e adequada, em cada tipo de problema, por ele, vivenciado.


Based on a qualitative research of the case study type, this article aims at establishing Nursing Diagnosis (ND`s) of patients with colorectal neoplasia undergoing chemotherapy treatment considering their altered basic human needs. The project was approved by the Research and Post-Graduation Group of Hospital de Clínicas de Porto Alegre (HCPA) (project number 07-001). The study analyzed 11 subjects starting ambulatory chemotherapy treatment in the Ambulatory Chemotherapy Unit of HCPA. Out of 23 established ND`s, 15 were related to physiological needs, 6 to alterations in protection and safety needs and 2, related to alterations in esteem needs. The collected data led to the conclusion that the most prevalent ND`s are connected with physiological needs, namely: Infection Risk; Sleep Disturbance Pattern; Unbalanced Nutrition: below the body needs; Damaged Tissue Integrity; and, High Risk for Damaged Tissue Integrity. Regarding alterations in protection and safety needs, Anxiety ND was the most prevalent one. At last, the ND`s established from esteem needs were: Disturbed Body Image and Impotence. According to the obtained results, it is possible to reaffirm the importance of the ND as a tool in the nursing care because it can interfere in an efficient, individual and proper way for each kind of problem experience by the patient.


Subject(s)
Male , Female , Humans , Middle Aged , Aged , Aged, 80 and over , Nursing Diagnosis , Colorectal Neoplasms/drug therapy , Qualitative Research , Drug Therapy
12.
Arq Bras Cardiol ; 87(4): 520-4, 2006 Oct.
Article in English, Portuguese | MEDLINE | ID: mdl-17128323

ABSTRACT

OBJECTIVE: It has been implied that neointimal proliferation and remodeling are the major causes of restenosis. The objective of this study is to assess the effect of orally administered L-arginine on these two factors in hypercholesterolemic rabbits that had suffered an injury to their iliac arteries caused by a catheter balloon. METHODS: The study included nineteen rabbits that were divided in two groups: control (CG) and arginine (AG). There were 19 arteries studied from the control group and 17 in the arginine group. The animals were placed on a 2% hypercholesterolemic diet for 15 days and then submitted to a balloon angioplasty in order to produce a lesion in their iliac arteries. Next, the AG animals were given a 1g/kg/day oral dose of a L-arginine solution. The animals were sacrificed 15 days after the angioplasty procedure and histological artery sections were prepared, stained and fixed. The ratio between the neointimal area (in mm(2)) and the media layer (in mm(2)) was used to represent lesion development. In order to determine remodeling, the ratio between the total area of the medial portion of the vessel (greater balloon contact) and the total area of the reference segment of the vessel (less balloon contact) was used. RESULTS: Mean neointimal thickness (NI/M) was 0.8151+/-0.2201 in CG and 0.3296+/-0.1133 in AG. Remodeling patterns for the two groups studied were similar. CONCLUSION: In the experimental model used, L-arginine was able to reduce intimal tissue thickness in hypercholesterolemic rabbits but did not act on artery remodeling.


Subject(s)
Angioplasty, Balloon/adverse effects , Arginine/pharmacology , Hypercholesterolemia , Iliac Artery/injuries , Tunica Intima/drug effects , Animals , Disease Models, Animal , Endothelium, Vascular/drug effects , Iliac Artery/drug effects , Iliac Artery/pathology , Male , Rabbits , Tunica Intima/pathology
13.
Arq. bras. cardiol ; 87(4): 520-524, out. 2006. ilus, tab
Article in Portuguese, English | LILACS | ID: lil-438240

ABSTRACT

OBJETIVO: A neoproliferação intimal e o remodelamento têm sido implicados como os maiores fatores causadores de reestenose. O objetivo deste trabalho é estudar a ação da L-arginina por via oral, nesses dois fatores, após lesão por balão, em artérias ilíacas de coelhos hipercolesterolêmicos. MÉTODOS: Foram utilizados dezenove coelhos, que foram divididos em dois grupos: controle (GC) e arginina (GA), respectivamente com dezenove e dezessete artérias estudadas. Os animais foram submetidos a lesão por balão de angioplastia, em suas artérias ilíacas, quinze dias após início de dieta hipercolesterolêmica a 2 por cento. A seguir, os animais do GA passaram a receber uma solução de L-arginina, por via oral, na dose de 1 g/kg/dia. Após o sacrifício, no 15° dia após a lesão por balão, procedeu-se a cortes histológicos das artérias, as quais foram coradas e fixadas. Utilizou-se como representativa do desenvolvimento da lesão a razão da área da neoíntima (em mm²) pela camada média (em mm²). Por sua vez, a razão da área total do vaso em sua porção medial (de maior contato com o balão) pela área total do vaso no segmento referencial (de menor contato com o balão) foi a definidora do remodelamento. RESULTADOS: A média do espessamento neointimal (NI/M) foi de 0,8151±0,2201 no GC e de 0,3296±0,1133 no GA. Não houve diferença entre os tipos de remodelamento entre os dois grupos estudados. CONCLUSÃO: No modelo experimental utilizado, a L-arginina foi capaz de reduzir o espessamento intimal em coelhos hipercolesterolêmicos e não teve ação sobre o remodelamento arterial.


OBJECTIVE: It has been implied that neointimal proliferation and remodeling are the major causes of restenosis. The objective of this study is to assess the effect of orally administered L-arginine on these two factors in hypercholesterolemic rabbits that had suffered an injury to their iliac arteries caused by a catheter balloon. METHODS: The study included nineteen rabbits that were divided in two groups: control (CG) and arginine (AG). There were 19 arteries studied from the control group and 17 in the arginine group. The animals were placed on a 2 percent hypercholesterolemic diet for 15 days and then submitted to a balloon angioplasty in order to produce a lesion in their iliac arteries. Next, the AG animals were given a 1g/kg/day oral dose of a L-arginine solution. The animals were sacrificed 15 days after the angioplasty procedure and histological artery sections were prepared, stained and fixed. The ratio between the neointimal area (in mm²) and the media layer (in mm²) was used to represent lesion development. In order to determine remodeling, the ratio between the total area of the medial portion of the vessel (greater balloon contact) and the total area of the reference segment of the vessel (less balloon contact) was used. RESULTS: Mean neointimal thickness (NI/M) was 0.8151±0.2201 in CG and 0.3296±0.1133 in AG. Remodeling patterns for the two groups studied were similar. CONCLUSION: In the experimental model used, L-arginine was able to reduce intimal tissue thickness in hypercholesterolemic rabbits but did not act on artery remodeling.


Subject(s)
Animals , Male , Rabbits , Angioplasty, Balloon/adverse effects , Arginine/pharmacology , Hypercholesterolemia , Iliac Artery/injuries , Tunica Intima/drug effects , Disease Models, Animal , Endothelium, Vascular/drug effects , Iliac Artery/drug effects , Iliac Artery/pathology , Tunica Intima/pathology
SELECTION OF CITATIONS
SEARCH DETAIL
...