Search | SciELO

Need help?

Add field +

Search history

No documents were found for your search

Results: 43

au:"Marchi, Carlos Henrique"

Filters

Collection

All
Brazil

43

Journal + Options

All
Brazilian Journal of Cardiovascular Surgery

29
Arquivos Brasileiros de Cardiologia

5
Journal of Aerospace Technology and Management

3
Journal of the Brazilian Society of Mechanical Sciences and Engineering

3
Revista Brasileira de Ensino de Física

3

Show all...

Language

All
Portuguese

21

Publication Year + Options

All
2015

5
2004

4
2019

4
2007

3
2009

3
2010

3
2021

3
2022

3
2023

3
2005

2
2006

2
2024

2
2008

1
2011

1
2012

1

Show all...

SciELO Thematic Areas + Options

All
Health Sciences

34
Engineering

6
Exact and Earth Sciences

3
Human Sciences

3

WoS Subject Categories + Options

All
Cardiac

34
Cardiovascular

34
Systems

34
Surgery

29
Engineering

6
Aerospace

3
Education

3
Educational

3
Mechanical

3
Multidisciplinary

3
Physics

3
Research

3

WoS Citation Index + Options

All
Science Citation Index Expanded

40
Social Sciences Citation Index

3

Citables and non citables + Options

All
Citable

42
Non citable

1

Type of Literature + Options

All
Article

36
Case report

5
Article-commentary

1
Other

1

Order by

Page of 3 Next

Select this page

Print | Send to email | Export |

Facebook
Twitter
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

0 Selected itens

List all
Erase all

Role of Computed Tomography Angiography in the Short-Term Follow-up of Aortic Coarctation Repair ShortTerm Short Term Followup Follow up
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Cardoso, Mariana Ribeiro Rodero

; Crestani, Ariela Maltarolo

; Souza, Antônio Soares

; Braga, Fernanda Del Campo Braojos

; Brun, Marília Maroneze

; Murakami, Alexandre Noboru

; Cajueiro, Francisco Candido Monteiro

; Marchi, Carlos Henrique De

; Croti, Ulisses Alexandre

Brazilian Journal of Cardiovascular Surgery

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2024, Volume 39 N. 1 elocation e20230220

Abstract: En | Text: En | PDF: En

ABSTRACT Introduction: Coarctation of the aorta (CoA) is a narrowing of the thoracic aorta that often manifests as discrete stenosis but may be tortuous or in long segment. The study aimed to evaluate pre and post-surgical aspects of pediatric patients submitted to CoA surgical correction and to identify possible predisposing factors for aortic recoarctation. Methods: Twenty-five patients were divided into groups according to presence (N=8) or absence (N=17) of recoarctation after surgical correction of CoA and evaluated according to clinical-demographic profile, vascular characteristics via computed angiotomography (CAT), and other pathological conditions. Results: Majority of males (64%), ≥ 15 days old (76%), ≥ 2.5 kg (80%). There was similarity between groups with and without recoarctation regarding sex (male: 87% vs. 53%; P=0.277), age (≥ 15 days: 62.5 vs. 82%; P=0.505), and weight (≥ 2.5 kg: 87.5 vs. 76.5; P=0,492). Altered values of aortic root/Valsalva diameter, proximal transverse arch, and distal isthmus, and normal values for aorta prevailed in preoperative CAT. Normal values for the aortic root/Valsalva sinus diameter were observed with and without recoarctation, the same for both groups regarding ascending and descending aorta in postoperative CAT. No significant difference for altered values of proximal transverse arch and alteration in distal isthmus was observed. Conclusion: No predictive risk for recoarctation was observed. CTA proved to be important in CoA diagnosis and management, since CoA is mainly related with altered diameter of aortic root/sinus of Valsalva and proximal and distal aortic arch/isthmus, however, it failed to show predictive risk for recoarctation. Introduction (CoA segment postsurgical post Methods Twentyfive Twenty five N=8 N8 N 8 (N=8 N=17 N17 17 (N=17 clinicaldemographic clinical demographic profile CAT, CAT , (CAT) conditions Results 64%, 64 64% (64%) 1 76%, 76 76% (76%) 25 2 5 2. 80%. 80 80% . (80%) male (male 87 vs 53% 53 P=0.277, P0277 P P=0.277 0 277 P=0.277) ( 625 62 62. 82% 82 P=0.505, P0505 P=0.505 505 P=0.505) 875 87. 76.5 765 P=0,492. P0492 P=0,492 492 P=0,492) rootValsalva root Conclusion management rootsinus archisthmus arch/isthmus however N= (N= N=1 N1 (N=1 (CAT 6 (64% 7 (76% (80% P027 P=0.27 27 P050 P=0.50 50 76. P049 P=0,49 49 (N (64 (76 (80 P02 P=0.2 P05 P=0.5 P04 P=0,4 4 (6 (7 (8 P0 P=0. P=0, P=0 P=

https://doi.org/10.21470/1678-9741-2023-0220

Modified Senning Procedure for Treatment of Transposition of the Great Arteries with Crisscross Heart
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Godoy, Ana Carolina Pereira de

; Brun, Marilia Maroneze

; Avona, Fabiana Nakamura

; Marchi, Carlos Henrique De

; Croti, Ulisses Alexandre

Brazilian Journal of Cardiovascular Surgery

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2024, Volume 39 N. 6 elocation e20230244

Abstract: En | Text: En | PDF: En

ABSTRACT Clinical data: A nine-month-old female infant diagnosed with transposition of the great arteries with symptoms of heart failure associated with cyanosis and difficulty in gaining weight was referred to our center with late diagnosis (at nine months of age). Chest radiography: Cardiomegaly; attenuated peripheral vascular markings. Electrocardiography: Sinus rhythm with biventricular overload and aberrantly conducted supraventricular extra systoles. Echocardiography: Wide atrial septal defect, ventricular axis torsion with concordant atrioventricular connection and discordant ventriculoarterial connection. Computed tomography angiography: Concordant atrioventricular connection, right ventricle positioned superiorly and left ventricle positioned inferiorly; discordant ventriculoarterial connection with right ventricle connected to the aorta and left ventricle connected to pulmonary artery. Diagnosis: Crisscross heart is a rare congenital heart defect, accounting for 0.1% of congenital heart diseases. It consists of the 90º rotation of ventricles’ axis in relation to their normal position; therefore, ventricles are positioned in the superior-inferior direction rather than anterior-posterior. Most cases have associated cardiac anomalies, and in this case, it is associated with transposition of the great arteries. The complexity and rarity of its occurrence make diagnosis and surgical treatment challenging. Operation: Modified Senning procedure using the pericardial sac in the construction of a tunnel from pulmonary veins to the right atrium. Cardiopulmonary bypass time of 147 minutes with nine minutes of total circulatory arrest. data ninemonthold month old at age. age . age) radiography Cardiomegaly markings Electrocardiography systoles Echocardiography defect angiography inferiorly artery Diagnosis 01 0 1 0.1 diseases º position therefore superiorinferior superior inferior anteriorposterior. anteriorposterior anterior posterior. posterior anterior-posterior anomalies case challenging Operation atrium 14 arrest 0.

https://doi.org/10.21470/1678-9741-2023-0244

Use of Ozonized Water in the Prevention of Surgical Site Infection in Children Undergoing Cardiovascular Surgery
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Murakami, Alexandre Noboru

; Croti, Ulisses Alexandre

; Borim, Bruna Cury

; Marchi, Carlos Henrique De

; Murakami, Rouse Mary Rossini

; Almeida, Margarete Teresa Gottardo de

; Policarpo, Rafael da Silva

; Avona, Fabiana Nakamura

; Godoy, Moacir Fernandes de

Brazilian Journal of Cardiovascular Surgery

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2023, Volume 38 N. 6 elocation e20230006

Abstract: En | Text: En | PDF: En

ABSTRACT Introduction: Since the reduction of healthcare-associated infections has been a focus for quality patient care, this study aimed to evaluate the surgical site infection rate of children who underwent cardiovascular surgery after implementation of ozonized water system for hand and body hygiene allied to previously implemented preventive measures. Methods: Two uniformly comparable groups of pediatric patients underwent cardiovascular surgery. Group A (187) patients were operated prior to installation of ozonized water system (March 1 to August 31, 2019), and group B (214) patients were operated after installation of ozonized water system (October 1, 2019, to March 31, 2020). Ozonized water was used for professional hand hygiene and patient body hygiene. Results: There was statistical significance for surgical site infection reduction in group B (P=0.0289), with a relative risk of 0.560 (95% confidence interval = 0.298 to 0.920), inferring the risk of being diagnosed with surgical site infections in group B was 44% less than in group A. There was no statistical significance regarding mechanical ventilation time (P=0.1998) or mortality (P=0.4457). Conclusion: Ozonized water for professional hand hygiene and patient body hygiene was an adjuvant combined with traditional preventive methods to reduce the risk of surgical site infection, although no impact on hospital stay or mortality was observed. Introduction healthcareassociated healthcare associated care measures Methods 187 (187 31 2019 , 2019) 214 (214 October 2020. 2020 . 2020) Results P=0.0289, P00289 P P=0.0289 0 0289 (P=0.0289) 0560 560 0.56 95% 95 (95 0298 298 0.29 0.920, 0920 0.920 920 0.920) 44 P=0.1998 P01998 1998 (P=0.1998 P=0.4457. P04457 P=0.4457 4457 (P=0.4457) Conclusion observed 18 (18 3 201 21 (21 202 P0028 P=0.028 028 (P=0.0289 056 56 0.5 9 (9 029 29 0.2 092 0.92 92 4 P=0.199 P0199 199 (P=0.199 P0445 P=0.445 445 (P=0.4457 (1 20 2 (2 P002 P=0.02 02 (P=0.028 05 5 0. ( 09 0.9 P=0.19 P019 19 (P=0.19 P044 P=0.44 (P=0.445 P00 P=0.0 (P=0.02 P=0.1 P01 (P=0.1 P04 P=0.4 (P=0.44 P0 P=0. (P=0.0 (P=0. (P=0.4 P=0 (P=0 P= (P= (P

https://doi.org/10.21470/1678-9741-2023-0006

Abernethy Malformation: Possible Diagnosis for Patients with Congenital Heart Disease and Persistent Cyanosis Malformation
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Brun, Marilia Maroneze

; Cardoso, Mariana Rodero

; Borim, Bruna Cury

; Marchi, Carlos Henrique De

; Croti, Ulisses Alexandre

Brazilian Journal of Cardiovascular Surgery

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2023, Volume 38 N. 2 Pages 300 - 304

Abstract: En | Text: En | PDF: En

ABSTRACT Clinical data: Infant, nine months of age, female, diagnosed with congenital heart disease, with signs of heart failure associated with cyanosis and difficulty in gaining weight. Chest radiography: Cardiomegaly with prevalence of pulmonary vascular network. Electrocardiogram: Ectopic atrial rhythm with right ventricular overload and left anterosuperior divisional block. Echocardiogram: Single atrium with absent interatrial septum, atrioventricular connection with a single valve and two orifices, with increased pulmonary pressure and high Qp/Qs. Computed tomography: Absence of portal vein and intrahepatic segment of the inferior vena cava. Infrahepatic portion continuing with the azygos system at the level of the thoracic cavity, presence of mesenteric-caval communication associated with signs suggestive of hepatic peribiliary fibrosis. Diagnosis: Abernethy malformation is a rare condition and represents an extrahepatic portosystemic shunt that develops between the mesenteric-portal vasculature and the systemic veins. It may be associated with cardiac malformations and advance with pulmonary hypertension and even the need for liver transplantation. Persistent cyanosis after corrective surgery led to a deeper investigation and correct diagnosis of this malformation. Operation: Sternotomy with 68 minutes of cardiopulmonary bypass and nine minutes of total circulatory arrest. In the postoperative period, persistence of cyanosis was evident, even though there were no immediate complications. Patient was discharged on the 10th postoperative day. An abdominal computed tomography angiography confirmed the diagnosis of Abernethy type I malformation, and the patient was transferred for liver transplantation after congenital heart disease treatment. data Infant age female weight radiography network Electrocardiogram block Echocardiogram septum orifices QpQs Qp Qs Qp/Qs cava cavity mesentericcaval mesenteric caval fibrosis Diagnosis mesentericportal veins Operation 6 arrest period evident complications th day treatment

https://doi.org/10.21470/1678-9741-2022-0110

Soluções analítica e numérica para o movimento vertical de um minifoguete
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Alves, André Luíz

; Bento, Sérgio Souza

; Marchi, Carlos Henrique

Revista Brasileira de Ensino de Física

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2023, Volume 45 elocation e20230229

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Neste trabalho é descrito um modelo para a solução analítica da equação diferencial de movimento de um minifoguete que descreve uma trajetória vertical num movimento de subida. As soluções para a velocidade, v(t), e altitude, y(t), são comparadas com uma solução numérica utilizando o método de Euler. Para testar estes modelos e comparar os métodos para a obtenção de v(t) e y(t), foi utilizado o voo experimental do minifoguete Epsilon-8 com motor a propelente sólido, do grupo de foguetemodelismo Carl Sagan da Universidade Federal do Paraná (UFPR). Na solução analítica é considerado um modelo aproximado no qual a massa total do minifoguete é constante durante o tempo de queima do propelente. As previsões numérica e analítica para v(t) e y(t) podem ser obtidas utilizando parâmetros físicos relacionados ao minifoguete: as curvas experimentais para o empuxo, T(t), e a força de arrasto. Foram utilizadas curvas T(t) de quatro motores fabricados pela empresa Boa Vista Modelismo e testados pelo grupo de Carl Sagan, que são do mesmo lote do motor usado no voo experimental do Epsilon-8. Embora o método analítico seja satisfatório, o método numérico retorna valores de velocidade e altitudes mais próximos ao voo experimental do Epsilon-8. subida vt, vt v t , altitude yt, yt y Euler v(t Epsilon8 Epsilon 8 Epsilon- sólido UFPR. UFPR . (UFPR) y(t empuxo Tt, Tt T arrasto T(t Epsilon8. 8. satisfatório (UFPR

In this work, a model for the analytical solution of the differential equation of motion of a model rocket that describes a vertical trajectory in an upward movement is described. The solutions for velocity, v(t), and altitude, y(t), are compared with a numerical solution using Euler’s method. To test these models and compare the methods for obtaining v(t) and y(t), the experimental flight of the Epsilon-8 model rocket, with a solid propellant engine, from the Carl Sagan rocketry group of the Federal University of Paraná (UFPR). In the analytical solution, an approximate model is considered in which the total mass of the mini rocket is constant during the propellant burn time. Numerical and analytical predictions for v(t) and y(t) can be obtained, using physical parameters related to the mini rocket, the drag force and the experimental curves for the thrust, T(t). T(t) curves of four engines manufactured by the Carl Sagan group were used, similar to the one used in the experimental flight of the Epsilon-8. Although the analytical method is satisfactory, the numerical method returns values of speed and altitudes closer to the experimental flight of the Epsilon-8. work described velocity vt, vt v t , altitude yt, yt y Eulers Euler s v(t Epsilon8 Epsilon 8 Epsilon- engine UFPR. UFPR . (UFPR) time y(t obtained thrust Tt. Tt T T(t Epsilon8. 8. satisfactory (UFPR

https://doi.org/10.1590/1806-9126-rbef-2023-0229

Pediatric Heart Transplant: Initial Experience in a Tertiary Center in Brazil
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Cajueiro, Francisco Candido Monteiro

; Croti, Ulisses Alexandre

; Barufi, Alexandra Regina Siscar

; Bodini, André Luís de Andrade

; Postigo, Karolyne Barroca Sanches

; Marchi, Carlos Henrique De

; Santos, Fernando Cesar Gimenes Barbosa

; Beani, Lilian

; Borim, Bruna Cury

; Godoy, Moacir Fernandes

; Moscardini, Airton Camacho

Brazilian Journal of Cardiovascular Surgery

Journal Metrics
- Sobre o periódico
- SciELO Analytics

jun 2022, Volume 37 N. 3 Pages 281 - 291

Abstract: En | Text: En | PDF: En

ABSTRACT Introduction: Pediatric heart transplantation is the definitive therapy for children with end-stage heart failure. This paper describes our initial experience in pediatric heart transplantation in a tertiary center in Brazil Methods: This is a historical prospective descriptive cohort study based on a review of the medical records of children undergoing heart transplantation at Hospital de Base and Hospital da Criança e Maternidade de São José do Rio Preto. Variables were displayed as frequency, mean, or median. Statistical analysis and Kaplan-Meier actuarial curve were obtained with the aid of Microsoft® Excel® 2019 and STATSDirect version 3.3.5. Results: Between January 2010 and December 2020, ten children underwent bicaval orthotopic heart transplantation, 30% of which were under one year of age. Nine patients had end-stage heart failure (International Society for Heart and Lung Transplantation-Heart Failure D) and 50% of the recipients were transplanted under conditions of progressive clinical deterioration (Interagency Registry for Mechanically Assisted Circulatory Support ≤ 2). Forty percent of the recipients had a panel-reactive antibody > 20% on virtual crossmatch. In the postoperative period, 80% of patients required high dose of inotropic support (vasoactive-inotropic score > 10) for > 48 hours. The death-free survival rate at 131 months was 77.1±14.4%. Most patients (88.9%) in late follow-up had an episode of active cytomegalovirus infection. Cellular rejection, with or without clinical repercussion, was present in 44.4% of the patients. Conclusion: Pediatric heart transplantation produces acceptable and feasible outcomes as definitive therapy for children with end-stage heart failure.

https://doi.org/10.21470/1678-9741-2021-0483

Common Arterial Trunk with Interrupted Aortic Arch
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Estephan, Lys Molina Hernandes

; Aranda, Aline Simões

; Marchi, Carlos Henrique De

; Croti, Ulisses Alexandre

Brazilian Journal of Cardiovascular Surgery

Journal Metrics
- Sobre o periódico
- SciELO Analytics

feb 2022, Volume 37 N. 1 Pages 131 - 134

Abstract: En | Text: En | PDF: En

Abstract Clinical data: Patient diagnosed with common arterial trunk, submitted to pulmonary artery banding in another center and lost to clinical follow-up. Referred to our center at four years old, extremely cyanotic. Chest radiography: Cardiomegaly; attenuated peripheral vascular markings. Electrocardiography: Right ventricular hypertrophy. Echocardiography: Common arterial trunk, but it was not possible to analyze all the structures. Computed tomography angiography: Van Praagh type A4 common arterial trunk. Extremely hypoplastic right and left pulmonary arteries. Diagnosis: Association of aortic arch interruption type A is uncommon and should be considered. Operation: Debanding of pulmonary arteries allowing for possible future complete repair.

https://doi.org/10.21470/1678-9741-2021-0008

Abernethy Malformation: Possible Diagnosis for Patients with Congenital Heart Disease and Persistent Cyanosis
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Brun, Marilia Maroneze

; Cardoso, Mariana Rodero

; Borim, Bruna Cury

; Marchi, Carlos Henrique De

; Croti, Ulisses Alexandre

Brazilian Journal of Cardiovascular Surgery

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2022, N. ahead

Abstract: En | Text: En | PDF: En

https://doi.org/10.21470/1678-9741-2022-0110

COVID-19 in the Perioperative Period of Cardiovascular Surgery: the Brazilian Experience
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Gomes, Walter J.

; Rocco, Isadora

; Pimentel, Wallace S.

; Pinheiro, Aislan H. B.

; Souza, Paulo M. S.

; Costa, Luiz A. A.

; Teixeira, Marjory M. P.

; Ohashi, Leonardo P.

; Bublitz, Caroline

; Begot, Isis

; Moreira, Rita Simone L

; Hossne Jr, Nelson A.

; Vargas, Guilherme F.

; Branco, João Nelson R.

; Teles, Carlos A.

; Medeiros, Eduardo A. S.

; Sáfadi, Camila

; Rampinelli, Amândio

; Moratelli Neto, Leopoldo

; Rosado, Anderson Rosa

; Mesacasa, Franciele Kuhn

; Capriata, Ismael Escobar

; Segalote, Rodrigo Coelho

; Palmieri, Deborah Louize da Rocha Vianna

; Jardim, Amanda Cristina Mendes

; Vianna, Diego Sarty

; Coutinho, Joaquim Henrique de Souza Aguiar

; Jazbik, João Carlos

; Coutinho, Henrique Madureira da Rocha

; Kikuta, Gustavo

; Almeida, Zely Sant'Anna Marotti de

; Feguri, Gibran Roder

; Lima, Paulo Ruiz Lucio de

; Franco, Anna Carolina

; Borges, Danilo de Cerqueira

; Cruz, Felipe Ramos Honorato De La

; Croti, Ulisses Alexandre

; Borim, Bruna Cury

; Marchi, Carlos Henrique De

; Goraieb, Lilian

; Postigo, Karolyne Barroca Sanches

; Jucá, Fabiano Gonçalves

; Oliveira, Fátima Rosane de Almeida

; Souza, Rafael Bezerra de

; Zilli, Alexandre Cabral

; Mas, Raul Gaston Sanchez

; Bettiati Junior, Luiz Carlos

; Tranchesi, Ricardo

; Bertini Jr, Ayrton

; Franco, Leandro Vieira

; Fernandes, Priscila

; Oliveira, Fabiana

; Moraes Jr, Roberto

; Araújo, Thiago Cavalcanti Vila Nova de

; Braga, Otávio Penna

; Pedrosa Sobrinho, Antônio Cavalcanti

; Teixeira, Roberta Tavares Barreto

; Camboim, Irla Lavor Lucena

; Gomes, Eduardo Nascimento

; Reis, Pedro Horigushi

; Garcia, Luara Piovan

; Scorsioni, Nelson Henrique Goes

; Lago, Roberto

; Guizilini, Solange

Brazilian Journal of Cardiovascular Surgery

Journal Metrics
- Sobre o periódico
- SciELO Analytics

dec 2021, Volume 36 N. 6 Pages 725 - 735

Abstract: En | Text: En | PDF: En

Abstract Introduction: We investigated the clinical course and outcomes of patients submitted to cardiovascular surgery in Brazil and who had developed symptoms/signs of coronavirus disease 2019 (COVID-19) in the perioperative period. Methods: A retrospective multicenter study including 104 patients who were allocated in three groups according to time of positive real time reverse transcriptase-polymerase chain reaction (RT-PCR) for the SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2): group 1, patients who underwent cardiac surgery > 10 days after positive RT-PCR; group 2, patients with a positive RT-PCR within 10 days before or after surgery; group 3, patients who presented positive RT-PCR > 10 days after surgery. The primary outcome was mortality and secondary outcomes were postoperative complications, intensive care unit (ICU) length of stay, and postoperative days of hospitalization. Results: The three groups were similar with respect to age, the European System of Cardiac Operative Risk Evaluation score, and comorbidities, except hypertension. Postoperative complications and death were significantly higher in groups 2 and 3 than in group 1, and no significant difference between groups 2 and 3 was seen. Group 2 showed a high prevalence of surgery performed as an urgent procedure. Although no significant differences were observed in ICU length of stay, total postoperative hospitalization time was significantly higher in group 3 than in groups 1 and 2. Conclusion: COVID-19 affecting the postoperative period of patients who underwent cardiovascular surgery is associated with a higher rate of morbidity and mortality. Delaying procedures in RT-PCR-positive patients may help reduce risks of perioperative complications and death.

https://doi.org/10.21470/1678-9741-2021-0960

10.

Isolated Coarctation Repair in Neonates and Infants Through Left Thoracotomy: Short-Term Outcomes Thoracotomy ShortTerm Short Term
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Murakami, Alexandre Noboru

; Croti, Ulisses Alexandre

; Cajueiro, Francisco Candido Monteiro

; Arteaga, Grace

; Pike, Roxann Barnes

; Moscardini, Airton Camacho

; Marchi, Carlos Henrique De

; Cardoso, Mariana Ribeiro Rodero

; Santos, Fernando Cesar Gimenes Barbosa

; Borim, Bruna Cury

Brazilian Journal of Cardiovascular Surgery

Journal Metrics
- Sobre o periódico
- SciELO Analytics

aug 2021, Volume 36 N. 4 Pages 461 - 467

Abstract: En | Text: En | PDF: En

Abstract Introduction: End-to-end anastomosis and extended end-to-end anastomosis are typically used as surgical approaches to coarctation of the aorta (CoAo) with access at the subclavian artery or an interposition graft. The objective of this study is to analyze the impact of surgical and anatomical characteristics and techniques on early outcomes after surgical treatment of CoAo without cardiopulmonary bypass through left thoracotomy. Methods: This is a quantitative, observational, and cross-sectional analysis of patients who underwent repair of CoAo between July 1, 2010 and December 31, 2017. Seventy-two patients were divided into three groups according to age: 34 in group A (≤ 30 days), 24 in group B (31 days to one year), and 14 in group C (≥ 1 year to 18 years). Results: Aortic arch hypoplasia was associated in 30.8% of the cases, followed by ventricular septal defect (13.2%). The preductal location was more frequent in group A (73.5%), ductal in group B (41.7%), and postductal in group C (71.4%). Long coarcted segment was predominant in groups A and C (61.8% and 71.4%, respectively) and localized in group B (58.3%). Extended end-to-end anastomosis technique was prevalent (68%), mainly in group A (91.2%). Mortality in 30 days was 1.4%. Conclusion: Most of the patients were children under one year of age, and extended end-to-end anastomosis was the most used technique, secondary to arch hypoplasia. Further, overall mortality was low in spite of moderate morbidity in the first 30 postoperative days. Introduction Endtoend End end endtoend (CoAo graft thoracotomy Methods quantitative observational crosssectional cross sectional 201 31 2017 Seventytwo Seventy two age 3 ≤ ( days, , days) 2 (3 year, year) ≥ years. years . years) Results 308 8 30.8 cases 13.2%. 132 13.2% 13 (13.2%) 73.5%, 735 73.5% 73 5 (73.5%) 41.7%, 417 41.7% 41 7 (41.7%) 71.4%. 714 71.4% 71 4 (71.4%) 61.8% 618 61 (61.8 respectively 58.3%. 583 58.3% 58 (58.3%) 68%, 68 68% (68%) 91.2%. 912 91.2% 91 (91.2%) 1.4% Conclusion Further 20 30. 13.2 (13.2% 73.5 (73.5% 41.7 (41.7% 71.4 (71.4% 61.8 6 (61. 58.3 (58.3% (68% 91.2 9 (91.2% 1.4 13. (13.2 73. (73.5 41. (41.7 71. (71.4 61. (61 58. (58.3 (68 91. (91.2 1. (13. (73. (41. (71. (6 (58. (91. (13 (73 (41 (71 (58 (91 (1 (7 (4 (5 (9

https://doi.org/10.21470/1678-9741-2020-0554 38 downloads

11.

Movimento Vertical de Minifoguetes: Equações de Trajetórias e Análises Gráficas
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Alves, André Luíz

; Bento, Sérgio Souza

; Marchi, Carlos Henrique

Revista Brasileira de Ensino de Física

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2021, Volume 43 elocation e20200479

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Neste trabalho são descritas as equações diferenciais de movimento e as respectivas soluções para a velocidade [v(t)] e altitude [y(t)] em função do tempo, relativas a um foguete que segue uma trajetória vertical em um movimento de subida. São considerados quatro modelos: no primeiro é desprezada a força de arrasto do ar; no segundo é considerada uma força de arrasto linear com a velocidade; no terceiro e quarto modelos é considerado que a força de arrasto é proporcional ao quadrado da velocidade. O terceiro modelo se distingue por considerar a massa total de um foguete constante. No quarto modelo, apresenta-se uma solução completa, considerando-se que a massa decresce linearmente com o tempo durante a exaustão de gases. Para testar estes modelos foi utilizado o voo experimental do minifoguete Epsilon-8 do Grupo de Foguetes Carl Sagan da UFPR. Foram utilizados parâmetros experimentais relacionados à curva de empuxo em função do tempo (teste estático) do Epsilon-8 que permitiram estimar a velocidade de exaustão dos gases expelidos do motor. As curvas teóricas para v(t) e y(t) do terceiro e quarto modelos, por serem mais completos, foram utilizados no ajuste das respectivas curvas experimentais do Epsilon-8. O terceiro modelo, embora tenha uma solução aproximada, é razoável na previsão do apogeu, com um erro de 8,6%. O quarto modelo, por ser o mais completo, prevê o apogeu com um erro de apenas 1,5%.

This work describes the differential equations of motion and the respective solutions for speed v(t) and altitude y(t) as a function of time, relative to a rocket that follows a vertical trajectory in an upward motion were described. Four models are considered: in the first, the drag force of the air is neglected; in the second it is considered a linear drag force with speed; in the third and fourth models it is considered that the drag force is proportional to the square of the speed. The third model is distinguished by considering the total mass of a rocket constant. In the fourth model, a complete solution is presented, considering that the mass decreases linearly with time. To test these models, the experimental flight of the Epsilon-8 model rocket from the UFPR Carl Sagan Rocket Group was used. Experimental parameters related to the thrust curve as a function of the Epsilon-8 time (static test) were used, in which from the model rocket mass variation rate it was possible to obtain the rate of exhaust of the gases expelled in the engine. The third and fourth models, since they are more realistic, were used to adjust the experimental curve for v(t) and y(t). The third model, although it has an approximate solution, proves to be reasonable in the prediction of the peak, with an error of 8.6%. The fourth model, being the most complete, predicts the peak with an error of only 1.5% precisely in the time of the experimental peak.

https://doi.org/10.1590/1806-9126-rbef-2020-0479 628 downloads

12.

Minifoguete a propelente sólido: aspectos teóricos e propostas experimentais para o ensino de física
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Alves, André Luíz

; Paneto, Anderson Nunes

; Littike, Kaio Alan

; Bento, Sérgio Souza

; Marchi, Carlos Henrique

Revista Brasileira de Ensino de Física

Journal Metrics
- Sobre o periódico
- SciELO Analytics

2020, Volume 42 elocation e20200390

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Neste trabalho foi construído um minifoguete a propelente sólido como uma proposta de atividade lúdica, no qual os estudantes podem aprender física, matemática e simulação computacional na prática. Foi realizado toda uma abordagem teórica sobre grandezas físicas que surgem na equação de movimento e termodinâmica do minifoguete. A velocidade de exaustão e a constante de arraste puderam ser determinadas com a equação de altura em função do tempo do minifoguete, utilizando um altímetro digital. Estas grandezas foram comparadas com seus respectivos valores teóricos confrontando experiência e teoria. Na parte de construção, foram mostradas todas as etapas, desde a preparação do combustível até o minifoguete pronto para lançamento em uma base. Aqui o estudante tem a oportunidade de entender o funcionamento de um foguete real a propelente sólido, visto que a diferença deste para um minifoguete é apenas a escala.

In this work, a solid propellant model rocket was built as a proposal for a playful activity, in which students can learn physics, mathematics and computer simulation in practice. A whole theoretical approach was carried out on physical quantities that appear in the model rocket and thermodynamic equation. The rate of exhaustion and the variation in mass with time which appear in the impulse formula of the model rocket, could be determined with the equation of altitude as a function of time using a digital altimeter. These quantities were compared with theoretical values comparing experience and theory. In the construction part, all steps were shown, from the preparation of the fuel, to the model rocket ready to launch on a base. Here the student has the opportunity to understand how a real rocket works with solid propellant, since the difference between this and a model rocket is only the scale.

https://doi.org/10.1590/1806-9126-rbef-2020-0390 1716 downloads

13.

Rare Association Between Atrioventricular Septal Defect and Partial Anomalous Pulmonary Venous Connection
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Murakami, Alexandre Noboru

; Baston, Gabriela Guimarães

; Cardoso, Mariana Ribeiro Rodero

; Marchi, Carlos Henrique De

; Croti, Ulisses Alexandre

Brazilian Journal of Cardiovascular Surgery

Journal Metrics
- Sobre o periódico
- SciELO Analytics

dec 2019, Volume 34 N. 6 Pages 765 - 768

Abstract: En | Text: En | PDF: En

Abstract Clinical data: Infant, 7 months, female, referred to our department at one month of age, suspecting of congenital heart disease for further investigation. Chest radiography: Demonstrates cardiomegaly and prominent pulmonary vascular markings. Electrocardiography: Shows right ventricular hypertrophy and left anterior fascicular block. Echocardiography: Evidenced common atrioventricular valve with two orifices and the left superior pulmonary vein draining on the brachiocephalic vein. Computed tomography angiography: This complementary imaging exam was performed to confirm the diagnosis. Diagnosis: The patient presented an association between AVSD and PAPVC, a rare combination. The clinical picture of heart failure was preponderant, characterized by need for diuretics and complementary exams findings, and early surgical treatment was indicated. Operation: The operation was performed through a median sternotomy with 123 minutes of cardiopulmonary bypass and 89 minutes of cross-clamping time. The patient had no postoperative complications, remaining 10 days hospitalized.

https://doi.org/10.21470/1678-9741-2019-0203 291 downloads

14.

The Rare Association of Tetralogy of Fallot and ALCAPA
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Murakami, Alexandre Noboru

; Baston, Gabriela Guimarães

; Cardoso, Mariana Ribeiro Rodero

; Marchi, Carlos Henrique de

; Croti, Ulisses Alexandre

Brazilian Journal of Cardiovascular Surgery

Journal Metrics
- Sobre o periódico
- SciELO Analytics

oct 2019, Volume 34 N. 5 Pages 624 - 626

Abstract: En | Text: En | PDF: En

https://doi.org/10.21470/1678-9741-2019-0139 250 downloads

15.

Surgical Treatment for Congenital Heart Defects in Down Syndrome Patients
Facebook Twitter

Other social networks
Google+
LinkedIn
Reddit
StambleUpon
CiteULike
Mendeley
Other networks

Metrics
- SciELO Analytics
- Dimensions
- PlumX
- Altmetric

Santos, Fernando Cesar Gimenes Barbosa

; Croti, Ulisses Alexandre

; Marchi, Carlos Henrique De

; Murakami, Alexandre Noboru

; Brachine, Juliana Dane Pereira

; Borim, Bruna Cury

; Finoti, Renata Geron

; Godoy, Moacir Fernandes de

Brazilian Journal of Cardiovascular Surgery

Journal Metrics
- Sobre o periódico
- SciELO Analytics

feb 2019, Volume 34 N. 1 Pages 1 - 7

Abstract: En | Text: En | PDF: En

Abstract Objective: To analyze data related to surgical treatment in patients with congenital heart defects (CHD) and Down syndrome (DS) based on information from International Quality Improvement Collaborative Database for Congenital Heart Disease (IQIC). Methods: Between July 1, 2010 and December 31, 2017, 139 patients with CHD and DS underwent surgery at Hospital de Base and Hospital da Criança e Maternidade de São José do Rio Preto (FUNFARME)/Faculdade de Medicina de São José do Rio Preto - SP (FAMERP). A quantitative, observational and cross-sectional study was performed in which the pre, intra and postoperative data were analyzed in an IQIC database. The data included gender, age, prematurity, weight, preoperative procedures, diagnosis, associated cardiac and non-cardiac anomalies, Risk Adjustment for Congenital Heart Surgery (RACHS-1), type of surgery, cardiopulmonary bypass (CPB), perfusion time, aortic clamping time and CPB temperature, bacterial sepsis, surgical site infection and other infections, length of stay in intensive care unit (ICU), length of hospital stay and in-hospital mortality. Results: The most prevalent procedures were complete atrioventricular septal defect repair (58 - 39.45%), followed by closure of ventricular septal defect (36 - 24.49%). The RACHS-1 categories 1, 2, 3 and 4 were distributed as 22 (15%); 49 (33.3%); 72 (49%) and 4 (2.7%), respectively. There were no procedures classified as categories 5 or 6. Bacterial sepsis occurred in 10.2% of cases, surgical site infection in 6.1%, other infections in 14.3%. The median length of ICU stay was 5 days and the median length of hospital stay was 11 days. In-hospital mortality was 6.8%. Conclusion: Surgical treatment in patients with CHD and DS usually does not require highly complex surgical procedures, but are affected by infectious complications, resulting in a longer ICU and hospital length of stay with considerable mortality.

https://doi.org/10.21470/1678-9741-2018-0358 1370 downloads

Showing

itens per page

Page of 3 Next

Select one or more results

All Alphabetic

Results

Comparative chart Download CSV

Statistics of

Send result

To*

Use ; (semicolon) to insert more emails.

Send to email

This page

Selected records

All references (max. 300)

Your email

Subject

Comments

Export format:

RIS (for EndNote, ProCite, Reference Manager, RefWorks, Citavi, etc.)

BibTeX

Citation

CSV (for Excel, etc)

Export:

This page

Selected itens

All references (max. 2000)

Sem resultados

No documents were found for your search

Glossary and search help

You can enrich your search in a very simple way. Use the search indexes combined with the connectors (AND or OR) and specify more your search.

For example, if you want to search for articles about
cases of dengue in Brasil in 2015, use:
ti:dengue and publication_year:2015 and aff_country:Brasil

See below the complete list of search indexes that can be used:

Index code	Element
ti	article title
au	author
kw	article keywords
subject	subject (title words, abstract and keywords)
ab	abstract
ta	journal short title (e.g. Cad. Saúde Pública)
journal_title	journal full title (e.g. Cadernos de Saúde Pública)
la	publication language code (e.g. pt - Portuguese, es - Spanish)
type	document type
pid	publication identifier
publication_year	publication year of publication
sponsor	sponsor
aff_country	country code of the author's affiliation
aff_institution	author affiliation institution
volume	article volume
issue	article issue
elocation	elocation
doi	DOI number
issn	journal ISSN
in	SciELO colection code (e.g. scl - Brasil, col - Colômbia)
use_license	article usage license code

SciELO - Scientific Electronic Library Online
Rua Dr. Diogo de Faria, 1087 – 9º andar – Vila Clementino 04037-003 São Paulo/SP - Brasil
Email: scielo@scielo.org

All the contents of this site www.scielo.br, except where otherwise noted, is licensed under a Creative Commons Attribution License.
more »