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Graner M, Gutierre M, S Salgado L, Mishaly A, Baptista J, Calheiros G, M Buda A, N Bowder A, Corlew DS, Botelho F, de Souza Gomez D, Alonso N, Pompermaier L. Who gets burned in Brazil? J Burn Care Res 2023:7151204. [PMID: 37139956 DOI: 10.1093/jbcr/irad062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Indexed: 05/05/2023]
Abstract
Burns are preventable injuries that still represent a relevant public health issue. The identification of risk factors might contribute to the development of specific preventive strategies. Data of patients admitted at the Hospital due to acute burn injuries from May 2017 to December 2019, was extracted manually from medical records. The population was analyzed descriptively, and differences between groups were tested using the appropriate statistical test. The study population consisted of 370 patients with burns admitted to the Hospital burn unit during the study period. The majority of the patients were males (257/370, 70%), median age was 33 (IQR:18-43), median TBSA% was 13 (IQR 6.35-21.5 and range 0-87.5%), and 54% of patients had full thickness burns (n=179). Children younger than 13 years old represented 17% of the study population (n=63), 60% of them were boys (n= 38), and scalds was the predominant mechanism of burn injury (n= 45). No children died, however 10% of adults did (n= 31). Self-inflicted burns were observed in 16 adults (5%), of whom 6 (38%) died during admission, however self-inflicted burns were not observed in children. Psychiatric disorders and substance misuse were frequent in this subgroup. White adults male from urban areas who had not completed primary school degree were the major risk group for burns. Smoking and alcohol misuse were the most frequent comorbidities. Accidental domestic flame burns were the predominant injuries in the adult population and scalds in the pediatric.
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Affiliation(s)
- Mariana Graner
- School of Medicine, University of São Paulo; São Paulo, SP, Brazil
| | - Marcela Gutierre
- School of Medicine, University of São Paulo; São Paulo, SP, Brazil
| | - Lucas S Salgado
- School of Medicine, União Educacional do Vale do Aço, Ipatinga, MG, Brazil
| | | | - João Baptista
- School of Medicine, University of São Paulo; São Paulo, SP, Brazil
| | | | - Alexandra M Buda
- Harvard Medical School - Program in Global Surgery and Social Change; Boston, MA, United States
| | - Alexis N Bowder
- Harvard Medical School - Program in Global Surgery and Social Change; Boston, MA, United States
| | - D Scott Corlew
- Harvard Medical School - Program in Global Surgery and Social Change; Boston, MA, United States
| | | | | | - Nivaldo Alonso
- Department of Plastic Surgery, University of São Paulo, São Paulo, Brazil
| | - Laura Pompermaier
- Department of Hand Surgery, Plastic Surgery and Burns, Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
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Aveiro M, Sousa E, Baptista J. [Endometriosis and Medically Assisted Reproduction]. ACTA MEDICA PORT 2023; 36:372. [PMID: 36988611 DOI: 10.20344/amp.19411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 03/10/2023] [Indexed: 03/30/2023]
Affiliation(s)
| | - Eduardo Sousa
- Unidade de Saúde Familiar Amora Saudável. Seixal. Portugal
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Ramos D, Cotrim T, Arezes P, Baptista J, Rodrigues M, Leitão J. Frontiers in Occupational Health and Safety Management. Int J Environ Res Public Health 2022; 19:ijerph191710759. [PMID: 36078478 PMCID: PMC9517753 DOI: 10.3390/ijerph191710759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Accepted: 08/26/2022] [Indexed: 05/05/2023]
Abstract
This Special Issue of the International Journal of Environmental Research and Public Health is devoted to the "Frontiers in Occupational Health and Safety Management" [...].
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Affiliation(s)
- Delfina Ramos
- School of Engineering, Polytechnic of Porto, ISEP, 4249-015 Porto, Portugal
- INEGI—Instituto de Ciência e Inovação em Engenharia Mecânica e Engenharia Industrial, 4200-465 Porto, Portugal
- Algoritmi Centre, School of Engineering, University of Minho, 4800-058 Guimarães, Portugal
- Correspondence:
| | - Teresa Cotrim
- Ergonomics Laboratory, Faculdade de Motricidade Humana, Universidade de Lisboa, 1499-002 Cruz Quebrada, Portugal
- Research Centre for Architecture, Urbanism and Design (CIAUD), Faculdade de Arquitetura, Universidade de Lisboa, 1349-063 Lisboa, Portugal
| | - Pedro Arezes
- Algoritmi Centre, School of Engineering, University of Minho, 4800-058 Guimarães, Portugal
| | - João Baptista
- INEGI—Instituto de Ciência e Inovação em Engenharia Mecânica e Engenharia Industrial, 4200-465 Porto, Portugal
- Associated Laboratory for Energy, Transports and Aeronautics, LAETA (PROA), Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal
- Porto Biomechanics Laboratory, Faculty of Sport, University of Porto, 4200-450 Porto, Portugal
| | - Matilde Rodrigues
- Algoritmi Centre, School of Engineering, University of Minho, 4800-058 Guimarães, Portugal
- Research Centre on Environment and Health, Department of Environmental Health, School of Health, Polytechnic Institute of Porto, 4200-072 Porto, Portugal
| | - João Leitão
- NECE–Research Unit in Business Sciences, Faculty of Human and Social Sciences, University of Beira Interior (UBI), Estrada do Sineiro, 6200-001 Covilhã, Portugal
- Centre for Management Studies of Instituto Superior Técnico (CEG-IST), University of Lisbon, 1649-004 Lisboa, Portugal
- Instituto de Ciências Sociais (ICS), University of Lisbon, 1649-004 Lisboa, Portugal
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Baptista J, Wilson AD, Galliers RD. Instantiation: Reconceptualising the role of technology as a carrier of organisational strategising. Journal of Information Technology 2021. [DOI: 10.1177/0268396220988550] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Technology is often used by senior management as an instrument to deliver strategy by influencing day-to-day activities within organisations. We study how local teams appropriate strategy through the use of technology, specifically in instances where it is rigid and single purposed. We show that technology has the potential to act as a carrier of strategic intent. We theorise local practices of appropriation of strategic intent by conceptualising the role of technology in ‘instantiation’, a notion adopted within the strategy-as-practice literature to explain how localised micro events directly constitute higher-level business outcomes such as those that arise from strategy. Through an in-depth case study following the use of passenger self-service kiosks in a UK airport over a period of 20 months, we review the strategic drivers at the top of the organisation and the central role of technology as the delivery mechanism of strategy. We focus on emergent strategising activity by local teams on the ground. Our main theoretical contributions are thus to extend the concept of instantiation to Information Systems studies and to conceptualise technology as a carrier of strategy, particularly in explaining how technology can embed strategic intent ( structural strategising) and then influence the emergence of local practices consistent with these objectives ( emergent strategising). We find and conceptualise how local practices instantiate strategic intent by decoupling, reframing and then recoupling new logics of work to achieve the aims set out in the organisation’s strategy.
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Affiliation(s)
| | | | - Robert D Galliers
- The University of Warwick, UK
- Loughborough University, UK
- Bentley University, USA
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Azevedo AS, Gerola GP, Baptista J, Almeida C, Peres J, Mergulhão FJ, Azevedo NF. Increased Intraspecies Diversity in Escherichia coli Biofilms Promotes Cellular Growth at the Expense of Matrix Production. Antibiotics (Basel) 2020; 9:antibiotics9110818. [PMID: 33212939 PMCID: PMC7698454 DOI: 10.3390/antibiotics9110818] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 11/11/2020] [Accepted: 11/14/2020] [Indexed: 11/30/2022] Open
Abstract
Intraspecies diversity in biofilm communities is associated with enhanced survival and growth of the individual biofilm populations. Studies on the subject are scarce, namely, when more than three strains are present. Hence, in this study, the influence of intraspecies diversity in biofilm populations composed of up to six different Escherichia coli strains isolated from urine was evaluated in conditions mimicking the ones observed in urinary tract infections and catheter-associated urinary tract infections. In general, with the increasing number of strains in a biofilm, an increase in cell cultivability and a decrease in matrix production were observed. For instance, single-strain biofilms produced an average of 73.1 µg·cm−2 of extracellular polymeric substances (EPS), while six strains biofilms produced 19.9 µg·cm−2. Hence, it appears that increased genotypic diversity in a biofilm leads E. coli to direct energy towards the production of its offspring, in detriment of the production of public goods (i.e., matrix components). Apart from ecological implications, these results can be explored as another strategy to reduce the biofilm burden, as a decrease in EPS matrix production may render these intraspecies biofilms more sensitive to antimicrobial agents.
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Affiliation(s)
- Andreia S. Azevedo
- LEPABE-Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal; (G.P.G.); (J.B.); (C.A.); (J.P.); (F.J.M.); (N.F.A.)
- Laboratório de Investigação em Biofilmes Rosário Oliveira, Centre of Biological Engineering, University of Minho Braga, 4710-057 Braga, Portugal
- i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, 4200-135 Porto, Portugal
- IPATIMUP-Instituto de Patologia e Imunologia Molecular, Universidade do Porto, 4200-135 Porto, Portugal
- Correspondence: ; Tel.: +351-2250-8158; Fax: +351-225-081-449
| | - Gislaine P. Gerola
- LEPABE-Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal; (G.P.G.); (J.B.); (C.A.); (J.P.); (F.J.M.); (N.F.A.)
| | - João Baptista
- LEPABE-Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal; (G.P.G.); (J.B.); (C.A.); (J.P.); (F.J.M.); (N.F.A.)
| | - Carina Almeida
- LEPABE-Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal; (G.P.G.); (J.B.); (C.A.); (J.P.); (F.J.M.); (N.F.A.)
- Laboratório de Investigação em Biofilmes Rosário Oliveira, Centre of Biological Engineering, University of Minho Braga, 4710-057 Braga, Portugal
- INIAV, IP-National Institute for Agrarian and Veterinary Research, Vairão, 4485-655 Vila Do Conde, Portugal
| | - Joana Peres
- LEPABE-Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal; (G.P.G.); (J.B.); (C.A.); (J.P.); (F.J.M.); (N.F.A.)
| | - Filipe J. Mergulhão
- LEPABE-Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal; (G.P.G.); (J.B.); (C.A.); (J.P.); (F.J.M.); (N.F.A.)
| | - Nuno F. Azevedo
- LEPABE-Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal; (G.P.G.); (J.B.); (C.A.); (J.P.); (F.J.M.); (N.F.A.)
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Pina-Martins F, Baptista J, Pappas G, Paulo OS. New insights into adaptation and population structure of cork oak using genotyping by sequencing. Glob Chang Biol 2019; 25:337-350. [PMID: 30358018 DOI: 10.1111/gcb.14497] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 10/10/2018] [Accepted: 10/15/2018] [Indexed: 05/25/2023]
Abstract
Species respond to global climatic changes in a local context. Understanding this process, including its speed and intensity, is paramount due to the pace at which such changes are currently occurring. Tree species are particularly interesting to study in this regard due to their long generation times, sedentarism, and ecological and economic importance. Quercus suber L. is an evergreen forest tree species of the Fagaceae family with an essentially Western Mediterranean distribution. Despite frequent assessments of the species' evolutionary history, large-scale genetic studies have mostly relied on plastidial markers, whereas nuclear markers have been used on studies with locally focused sampling strategies. In this work, "Genotyping by sequencing" is used to derive 1,996 single nucleotide polymorphism markers to assess the species' evolutionary history from a nuclear DNA perspective, gain insights into how local adaptation is shaping the species' genetic background, and to forecast how Q. suber may respond to global climatic changes from a genetic perspective. Results reveal (a) an essentially unstructured species, where (b) a balance between gene flow and local adaptation keeps the species' gene pool somewhat homogeneous across its distribution, but still allowing (c) variation clines for the individuals to cope with local conditions. "Risk of Non-Adaptedness" (RONA) analyses suggest that for the considered variables and most sampled locations, (d) the cork oak should not require large shifts in allele frequencies to survive the predicted climatic changes. Future directions include integrating these results with ecological niche modeling perspectives, improving the RONA methodology, and expanding its use to other species. With the implementation presented in this work, the RONA can now also be easily assessed for other organisms.
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Affiliation(s)
- Francisco Pina-Martins
- Computational Biology and Population Genomics Group, Departamento de Biologia Animal, Faculdade de Ciências, Centre for Ecology, Evolution and Environmental Changes, Universidade de Lisboa, Lisboa, Portugal
| | - João Baptista
- Department of Biology, CESAM, University of Aveiro, Aveiro, Portugal
| | - Georgios Pappas
- Department of Cell Biology, University of Brasilia, Brasilia, Brazil
| | - Octávio S Paulo
- Computational Biology and Population Genomics Group, Departamento de Biologia Animal, Faculdade de Ciências, Centre for Ecology, Evolution and Environmental Changes, Universidade de Lisboa, Lisboa, Portugal
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Lima A, Ferin Borges R, Santos E, Fontes A, Martins D, Baptista J, Pavão M. Hypercysteinemia vs hyperhomocysteinemia as a risk factor for coronary artery disease: A case - control study. Atherosclerosis 2018. [DOI: 10.1016/j.atherosclerosis.2018.06.812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Baiao R, Baptista J, Carneiro A, Pinto R, Toscano C, Fearon P, Soares I, Mesquita AR. Assessing preschoolers interactive behaviour: A validation study of the "Coding System for Mother-Child Interaction". Child Care Health Dev 2018; 44:644-650. [PMID: 29766543 DOI: 10.1111/cch.12572] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 04/11/2018] [Accepted: 04/17/2018] [Indexed: 11/28/2022]
Abstract
BACKGROUND The preschool years are a period of great developmental achievements, which impact critically on a child's interactive skills. Having valid and reliable measures to assess interactive behaviour at this stage is therefore crucial. The aim of this study was to describe the adaptation and validation of the child coding of the Coding System for Mother-Child Interactions and discuss its applications and implications in future research and practice. METHODS Two hundred twenty Portuguese preschoolers and their mothers were videotaped during a structured task. Child and mother interactive behaviours were coded based on the task. Maternal reports on the child's temperament and emotional and behaviour problems were also collected, along with family psychosocial information. RESULTS Interrater agreement was confirmed. The use of child Cooperation, Enthusiasm, and Negativity as subscales was supported by their correlations across tasks. Moreover, these subscales were correlated with each other, which supports the use of a global child interactive behaviour score. Convergent validity with a measure of emotional and behavioural problems (Child Behaviour Checklist 1 ½-5) was established, as well as divergent validity with a measure of temperament (Children's Behaviour Questionnaire-Short Form). Regarding associations with family variables, child interactive behaviour was only associated with maternal behaviour. CONCLUSIONS Findings suggest that this coding system is a valid and reliable measure for assessing child interactive behaviour in preschool age children. It therefore represents an important alternative to this area of research and practice, with reduced costs and with more flexible training requirements. Attention should be given in future research to expanding this work to clinical populations and different age groups.
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Affiliation(s)
- R Baiao
- Psychology Research Center- CIPsi, School of Psychology, University of Minho, Braga, Portugal
| | - J Baptista
- Psychology Research Center- CIPsi, School of Psychology, University of Minho, Braga, Portugal
| | - A Carneiro
- Psychology Research Center- CIPsi, School of Psychology, University of Minho, Braga, Portugal.,Research Centre for Human Development, Catholic University of Portugal, Porto, Portugal
| | - R Pinto
- Psychology Research Center- CIPsi, School of Psychology, University of Minho, Braga, Portugal
| | - C Toscano
- Psychology Research Center- CIPsi, School of Psychology, University of Minho, Braga, Portugal
| | - P Fearon
- Department of Clinical, Educational and Health Psychology, University College London, London, UK
| | - I Soares
- Psychology Research Center- CIPsi, School of Psychology, University of Minho, Braga, Portugal
| | - A R Mesquita
- Psychology Research Center- CIPsi, School of Psychology, University of Minho, Braga, Portugal
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Low KJ, Baptista J, Babiker M, Caswell R, King C, Ellard S, Scurr I. Hemizygous UBA5 missense mutation unmasks recessive disorder in a patient with infantile-onset encephalopathy, acquired microcephaly, small cerebellum, movement disorder and severe neurodevelopmental delay. Eur J Med Genet 2018; 62:97-102. [PMID: 29902590 DOI: 10.1016/j.ejmg.2018.06.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 05/28/2018] [Accepted: 06/10/2018] [Indexed: 02/06/2023]
Affiliation(s)
- Karen J Low
- Department of Clinical Genetics, St Michael's Hospital, Bristol, UK.
| | - J Baptista
- Department of Molecular Genetics, Royal Devon & Exeter NHS Foundation Trust, Exeter, UK; Institute for Biomedical and Clinical Science, University of Exeter Medical School, Exeter, UK
| | - M Babiker
- Department of Paediatric Neurology, Bristol Royal Hospital for Children, UK
| | - R Caswell
- Institute for Biomedical and Clinical Science, University of Exeter Medical School, Exeter, UK
| | - C King
- Department of Clinical Genetics, St Michael's Hospital, Bristol, UK
| | - S Ellard
- Department of Molecular Genetics, Royal Devon & Exeter NHS Foundation Trust, Exeter, UK; Institute for Biomedical and Clinical Science, University of Exeter Medical School, Exeter, UK
| | - I Scurr
- Department of Clinical Genetics, St Michael's Hospital, Bristol, UK
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Mesquita Montes A, Baptista J, Crasto C, de Melo CA, Santos R, Vilas-Boas JP. Abdominal muscle activity during breathing with and without inspiratory and expiratory loads in healthy subjects. J Electromyogr Kinesiol 2016; 30:143-50. [DOI: 10.1016/j.jelekin.2016.07.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 06/12/2016] [Accepted: 07/04/2016] [Indexed: 11/30/2022] Open
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Mesquita A, Belsky J, Li Z, Baptista J, Carvalho-Correia E, Maciel P, Soares I. Institutionalization and indiscriminate social behavior: Differential-susceptibility versus diathesis-stress models for the 5-HTTLPR and BDNF genotypes. Physiol Behav 2015; 152:85-91. [DOI: 10.1016/j.physbeh.2015.09.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Revised: 04/16/2015] [Accepted: 09/14/2015] [Indexed: 11/17/2022]
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Baptista J, Martinho F, Nyitrai D, Pardal MA, Dolbeth M. Long-term functional changes in an estuarine fish assemblage. Mar Pollut Bull 2015; 97:125-134. [PMID: 26093816 DOI: 10.1016/j.marpolbul.2015.06.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2014] [Revised: 06/09/2015] [Accepted: 06/11/2015] [Indexed: 06/04/2023]
Abstract
The functional diversity of the fish assemblages of the Mondego estuary was studied for a discontinuous 30-year period (1988-2012). During this time, hydrological changes occurred due to man-induced alterations and weather extremes. These changes led to alterations in the structure and function of the fish community. Species richness and functional richness decreased over time and the fish community started to explore new micro-habitats and food resources. Before severe hydrological changes, the community was dominated by pelagic, detritivorous and species with wider salinity ranges. After, the community became dominated by demersal, benthic, piscivorous and marine species. During a drought, omnivorous became increasingly important, reflecting greater possibilities of using available feeding resources. We have also found an increase in sub-tropical species throughout the years, which might be related to gradual temperature increases at a global scale. This study also confirmed estuaries as extremely important for restocking several commercial species.
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Affiliation(s)
- J Baptista
- CFE - Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal.
| | - F Martinho
- CFE - Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal
| | - D Nyitrai
- CFE - Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal
| | - M A Pardal
- CFE - Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal
| | - M Dolbeth
- CFE - Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal; Biology Department & CESAM, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal.
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Huang J, Baptista J, Newell S. Communicational ambidexterity as a new capability to manage social media communication within organizations. The Journal of Strategic Information Systems 2015. [DOI: 10.1016/j.jsis.2015.03.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Furtado R, Baptista J, Lima E, Paiva L, Barroso J, Rosa J, Oliveira L. Chemical composition and biological activities of Laurus essential oils from different Macaronesian Islands. BIOCHEM SYST ECOL 2014. [DOI: 10.1016/j.bse.2014.04.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Ferin R, Lima A, Santos E, Almeida C, Pelicano N, Martins D, Baptista J, Pavão M. performance of apo A-I and B, and other cardiovascular risk factors in Azorean patients with coronary artery disease - preliminary results. Atherosclerosis 2014. [DOI: 10.1016/j.atherosclerosis.2014.05.886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Onuigbo M, Agbasi N, Wu MJ, Shu KH, Kugler E, Cohen E, Krause I, Goldberg E, Garty M, Krause I, Jansen J, De Napoli IE, Schophuizen CM, Wilmer MJ, Mutsaers HA, Heuvel LP, Grijpma DW, Stamatialis D, Hoenderop JG, Masereeuw R, Van Craenenbroeck AH, Van Craenenbroeck EM, Van Ackeren K, Vrints CJ, Hoymans VY, Couttenye MM, Erkmen Uyar M, Tutal E, Bal Z, Guliyev O, Sezer S, Liu L, Wang C, Tanaka K, Kushiyama A, Sakai K, Hara S, Ubara Y, Ohashi Y, Kunugi Y, Kawazu S, Untersteller K, Seiler S, Rogacev KS, Emrich IE, Lennartz CS, Fliser D, Heine GH, Hoshino T, Ookawara S, Miyazawa H, Ueda Y, Ito K, Kaku Y, Hirai K, Mori H, Yoshida I, Kakuta S, Hayama N, Amemiya M, Okamoto H, Inoue S, Tabei K, Campos P, Dias C, Baptista J, Papoila AL, Ortiz A, Inchaustegui L, Soto K, Moon KH, Yang S, Lee DY, Kim HW, Kim B, Isnard Bagnis C, Guerraoui A, Zenasni F, Idier L, Chauveau P, Cerqueira A, Quelhas-Santos J, Pestana M, Choi JY, Jin DC, Choi YJ, Kim WY, Nam SA, Cha JH, Cernaro V, Loddo S, Lacquaniti A, Romeo A, Costantino G, Montalto G, Santoro D, Trimboli D, Ricciardi CA, Lacava V, Buemi M, Emrich IE, Zawada AM, Rogacev KS, Seiler S, Obeid R, Geisel J, Fliser D, Heine GH, Meneses GC, Silva Junior G, Costa MFB, Goncalves HS, Daher EF, Liborio AB, Martins AMC, Ekart R, Hojs N, Bevc S, Hojs R, Lim CS, Hwang JH, Chin HJ, Kim S, Kim DK, Kim S, Park JH, Shin SJ, Lee SH, Choi BS, Lemoine S, Panaye M, Juillard L, Dubourg L, Hadj-Aissa A, Guebre-Egziabher F, Silva Junior G, Vieira APF, Couto Bem AX, Alves MP, Meneses GC, Martins AMC, Liborio AB, Daher EF, Ito K, Ookawara S, Miyazawa H, Ueda Y, Kaku Y, Hirai K, Hoshino T, Mori H, Yoshida I, Tabei K, Stefan G, Capusa C, Stancu S, Margarit D, Petrescu L, Nedelcu ED, Mircescu G, Szarejko-Paradowska A, Rysz J, Hung CC, Chen HC, Ristovska V, Grcevska L, Podesta MA, Reggiani F, Cucchiari D, Badalamenti S, Buemi M, Ponticelli C, Graziani G, Nouri-Majalan N, Moghadasimousavi S, Eshaghyeh Z, Greenwood S, Koufaki P, Maclaughlin H, Rush R, Hendry BM, Macdougall IC, Mercer T, Cairns H. CKD LAB METHODS, PROGRESSION & RISK FACTORS 2. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu165] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
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Udy A, Baptista J, Lim N, Joynt G, Jarrett P, Dulhunty J, Boots R, Lipman J. Augmented renal clearance: a common and sustained finding in patients without renal impairment during the first seven days in ICU. J Crit Care 2013. [DOI: 10.1016/j.jcrc.2013.09.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Alves D, Fernández-Navarro P, Baptista J, Ribeiro E, Sousa I, Gonçalves MM. Innovative moments in grief therapy: The meaning reconstruction approach and the processes of self-narrative transformation. Psychother Res 2013; 24:25-41. [PMID: 23885786 DOI: 10.1080/10503307.2013.814927] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Huang J, Baptista J, Galliers RD. Reconceptualizing rhetorical practices in organizations: The impact of social media on internal communications. Information & Management 2013. [DOI: 10.1016/j.im.2012.11.003] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Abstract
The content of total lipids and the fatty acid (FA) profile were determined for eight macroalgae (Cystoseira abies-marina, Fucus spiralis, Chaetomorpha pachynema, Codium elisabethae, Porphyra sp., Osmundea pinnatifida, Pterocladiella capillacea and Sphaeroccoccus coronopifolius). Total lipids were extracted using a solvent mixture of methanol/chloroform (2/1, v/v) and further derivatised to FA methyl esters (FAME). The analyses of FAME samples were performed by gas chromatography coupled to a flame ionisation detector. The total lipid content ranged from 0.06 to 3.54 g (per 100 g). The most abundant saturated FA were palmitic (C16:0) and myristic (C14:0), while oleic (C18:1 n-9) was the dominant monounsaturated acid. All seaweeds contained linoleic FA (C18:2 n-6). The α-linolenic (C18:3 n-3) and eicosapentaenoic (20:5 n-3) acids were present only in Porphyra sp. (3.34% ± 0.13) and C. pachynema (0.47% ± 0.12), respectively. The n-6/n-3 and h/H ratios were low, suggesting a high nutritional value of the algae studied.
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Affiliation(s)
- R F Patarra
- Departamento Biologia, Universidade dos Açores, Ponta Delgada, Portugal.
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Pavão M, Lima A, Ferin R, Baptista J. 518 PLASMA AMINOTHIOL PROFILE IN APPARENTLY HEALTHY SUBJECTS FROM THE AZORES ARCHIPELAGO, PORTUGAL. ATHEROSCLEROSIS SUPP 2011. [DOI: 10.1016/s1567-5688(11)70519-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Matos C, Sitoe C, Afonso S, Banze J, Baptista J, Dias G, Rodrigues F, Atanásio A, Nhamusso A, Penrith ML, Willingham III AL. A pilot study of common health problems in smallholder pigs in Angónia and Boane districts, Mozambique. J S Afr Vet Assoc 2011; 82:166-9. [DOI: 10.4102/jsava.v82i3.55] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Apilot survey was conducted in 2 districts in Mozambique to determine the most important health problems facing smallholder pig producers. While African swine fever is the most serious disease that affects pigs at all levels of production in Mozambique, it is likely that productivity is reduced by the presence of mange and gastrointestinal parasites, while in traditional systems the conditions are favourable for the development of porcine cysticercosis caused by the pork tapeworm Taenia solium, which poses a health risk to communities. Results of the pilot survey confirmed that, with the exception of African swine fever, ecto- and endoparasites are probably the most important health risks for producers. Porcine cysticercosis is more prevalent among pigs in traditional, free-ranging systems, while mange becomes a serious factor when pigs are permanently confined.
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Rego E, Paiva L, Lima E, Baptista J. Biotechnological conversion of Azorean bovine cheese whey for the production of bio-energy. J Biotechnol 2010. [DOI: 10.1016/j.jbiotec.2010.08.363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Ferin R, Correia C, Raposo M, Gonçalves B, Gonçalves C, Baptista J, Pavão M. MS269 PLASMA AMINOTHIOLS STATUS IN THE POPULATION OF THE ISLAND OF S ÃO JORGE (THE AZORES' ARCHIPELAGO, PORTUGAL). ATHEROSCLEROSIS SUPP 2010. [DOI: 10.1016/s1567-5688(10)70770-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Morais R, Silva N, Santos P, Frias C, Ferreira J, Ramos A, Simõesd J, Baptista J, Reis M. Permanent magnet vibration power generator as an embedded mechanism for smart hip prosthesis. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.proeng.2010.09.221] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Baptista J, Casanova P, Martins P, Pimentel J. Over-increased creatinine renal clearance in septic patients and implications for vancomycin optimization. Crit Care 2009. [PMCID: PMC4084193 DOI: 10.1186/cc7471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
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Murphy R, Baptista J, Holly J, Umpleby AM, Ellard S, Harries LW, Crolla J, Cundy T, Hattersley AT. Severe intrauterine growth retardation and atypical diabetes associated with a translocation breakpoint disrupting regulation of the insulin-like growth factor 2 gene. J Clin Endocrinol Metab 2008; 93:4373-80. [PMID: 18728168 DOI: 10.1210/jc.2008-0819] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
CONTEXT IGF-II is an imprinted gene (predominantly transcribed from the paternally inherited allele), which has an important role in fetal growth in mice. IGF2 gene expression is regulated by a complex system of enhancers and promoters that determine tissue-specific and development-specific transcription. In mice, enhancers of the IGF2 gene are located up to 260 kb telomeric to the gene. The role of IGF-II in humans is unclear. OBJECTIVE A woman of short adult stature (1.46 m, -3 sd score) born with severe intrauterine growth retardation (1.25 kg at term, -5.4 SD score) and atypical diabetes diagnosed at the age of 23 yr had a balanced chromosomal translocation t(1;11) (p36.22; p15.5). We hypothesized that her phenotype resulted from disruption of her paternally derived IGF2 gene because her daughter who inherited the identical translocation had normal birth weight. DESIGN Both chromosomal break points were identified using fluorescent in situ hybridization. Sequence, methylation, and expression of the IGF2 gene was examined. Hyperinsulinemic, euglycemic clamp with glucose tracers and magnetic resonance imaging of the thorax, abdomen, and pelvis were performed. RESULTS The 11p15.5 break point mapped 184 kb telomeric of the IGF2 gene. Microsatellite markers confirmed paternal origin of this chromosome. IGF2 gene sequence and methylation was normal. IGF2 gene expression was reduced in lymphoblasts. Clamp studies showed marked hepatic and total insulin resistance. Massive excess sc fat was seen on magnetic resonance imaging despite slim body mass index (21.1 kg/m2). CONCLUSIONS A break point 184 kb upstream of the paternally derived IGF2 gene, separating it from some telomeric enhancers, resulted in reduced expression in some mesoderm-derived adult tissues causing intrauterine growth retardation, short stature, lactation failure, and insulin resistance with altered fat distribution.
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Affiliation(s)
- R Murphy
- Institute of Clinical and Biomedical Sciences, Peninsula Medical School, Barrack Road, Exeter EX2 5DW, United Kingdom
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Gribble SM, Kalaitzopoulos D, Burford DC, Prigmore E, Selzer RR, Ng BL, Matthews NSW, Porter KM, Curley R, Lindsay SJ, Baptista J, Richmond TA, Carter NP. Ultra-high resolution array painting facilitates breakpoint sequencing. J Med Genet 2006; 44:51-8. [PMID: 16971479 PMCID: PMC2597908 DOI: 10.1136/jmg.2006.044909] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
OBJECTIVE To describe a considerably advanced method of array painting, which allows the rapid, ultra-high resolution mapping of translocation breakpoints such that rearrangement junction fragments can be amplified directly and sequenced. METHOD Ultra-high resolution array painting involves the hybridisation of probes generated by the amplification of small numbers of flow-sorted derivative chromosomes to oligonucleotide arrays designed to tile breakpoint regions at extremely high resolution. RESULTS AND DISCUSSION How ultra-high resolution array painting of four balanced translocation cases rapidly and efficiently maps breakpoints to a point where junction fragments can be amplified easily and sequenced is demonstrated. With this new development, breakpoints can be mapped using just two array experiments: the first using whole-genome array painting to tiling resolution large insert clone arrays, the second using ultra-high-resolution oligonucleotide arrays targeted to the breakpoint regions. In this way, breakpoints can be mapped and then sequenced in a few weeks.
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Affiliation(s)
- S M Gribble
- Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge CB10 1SA, UK
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Abstract
BACKGROUND Topical photodynamic therapy (PDT) with 5-aminolevulinic acid (ALA) was first described by Kennedy et al. in 1990; currently, accumulated evidence shows that topical PDT is effective in the treatment of actinic keratoses, Bowen's disease and superficial basal cell carcinoma, being potentially advantageous where size, anatomical location or number of lesions limit the efficacy and/or the acceptability of conventional therapies. It involves the use of photosensitizing drugs and the administration of an appropriate light source to activate the sensitizing agent, which leads to the production of activated oxygen species for tissue destruction. The topically administered prodrug 5-ALA is converted within cells into the active photosensitizer protoporphyrin IX, via haem cycle, with preferential accumulation in tumour cells. METHODS The authors describe their experience with topical PDT, using 20% 5-ALA and two different incoherent light sources, 'Waldman 1200 L' and 'VersaLight', in the treatment of non-melanoma skin cancer and precursor lesions. More than 100 patients were treated since 1997, with up to a 7-year follow-up period. RESULTS Cases are illustrated and results are presented and discussed in the light of the relevant Literature. CONCLUSION The study suggests that 5-ALA PDT is effective in the treatment of superficial skin cancer and premalignant lesions.
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Affiliation(s)
- J Baptista
- Dermatology Department, Hospital do Desterro, Lisbon, Portugal.
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Fidalgo A, Baptista J, Rocha Páris F, Caldas Lopes L, Ferreira A. Etanercept for psoriasis: two case reports. Int J Clin Pharmacol Res 2005; 25:159-63. [PMID: 16402631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Psoriasis is a chronic inflammatory skin disorder. Recent advances in the understanding of its immunological basis have led to its redefinition as being T-cell mediated. New biological agents have been developed as effective selective target therapies and promise to be an alternative to conventional systemic medications. Etanercept is a recombinant human protein recently approved for psoriatic arthritis treatment that has activity against tumor necrosis factor-alpha (TNF-alpha). It is composed of the human TNF receptor linked to the Fc portion of human IgG1. TNF-alpha seems to play a key role in the pathogenesis of psoriasis and psoriatic arthritis. Therefore, etanercept TNF antagonism is an effective approach for severe psoriasis. We describe two case reports of severe recalcitrant psoriasis, also with arthritis, that showed a remarkable improvement with etanercept, with no adverse events.
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Affiliation(s)
- A Fidalgo
- Dermatology Department, Desterro Hospital, Lisbon, Portugal.
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Rocha Paris F, Fidalgo A, Baptista J, Caldas LL, Ferreira A. Topical tacrolimus in Hailey-Hailey disease. Int J Tissue React 2005; 27:151-4. [PMID: 16440577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Hailey-Hailey disease, or familial benign chronic pemphigus, is a rare relapsing-remitting autosomal-dominant epidermal blistering disease. It preferentially affects females and is characterized by recurrent vesicles and erosions in the intertriginous areas. There are several topical corticosteroid therapeutic options, which are often limited in their use by their secondary effects and localization of the lesions. We report a case of a 60-year-old woman with Hailey-Hailey disease involving axillary, groin, cervical, antecubital, inframammary and abdominal folds. She was treated with 0.1% tacrolimus ointment, applied twice daily, with clinical improvement in 2 weeks and total remission in 4 weeks. She remains asymptomatic after a 10-month follow-up period.
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Affiliation(s)
- F Rocha Paris
- Dermatology Department, Desterro Hospital, Lisbon, Portugal
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Seabra-Gomes R, Almeida M, Cavaco D, Bettencourt V, Baptista J, Marques AL, Pereira H, Farto e Abreu P, dos Santos LP. Results of the quantitative coronary angiographic analysis in the angiographic subgroup of the Multi-Link 2.5 Portuguese Registry. Rev Port Cardiol 2001; 20:841-55. [PMID: 11763596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023] Open
Abstract
INTRODUCTION The restenosis rate of stents implanted into small coronary arteries is considered higher than that of stents in arteries > or = 3 mm, but could be influenced by clinical parameters and by the type and length of the stents. OBJECTIVE To assess the incidence of angiographic restenosis at 6 months after implantation of 2.5 mm ACS RX Multi-Link (ML) stents, 15 and 25 mm length, in de novo coronary stenosis. DESIGN Angiographic substudy of the Portuguese Multi-Link 2.5 Registry, which included Interventional Cardiology centers with facilities for coronary angiographic recordings allowing quantitative analysis. POPULATION Between April 7 and November 20 1998 and in the 5 hospitals that agreed to participate, 61 patients were enrolled and 40 selected as having procedural and 6-month angiographies of sufficient quality for quantitative analysis. The only significant differences in the demographic, clinical and angiographic characteristics of the patients relative to those of the Registry were the lower prevalence of unstable angina and smoking in the angiographic substudy. There were 43 lesions and 46 ML stents were implanted. In 37% the lesions were located in the LAD, in 37% in the LCx and 26% in the RCA. 29 stents of 15 mm length and 17 stents of 25 mm were used. METHODS The morphologic characteristics of the lesions were analyzed subjectively using the AHA/ACC classification. Quantitative coronary analysis (QCA) was performed, in an independent laboratory using the CAAS 2 system, for reference vessel diameter, lesion length, percentage of stenosis, minimum lumen diameter (MLD) and related parameters. Restenosis was defined as > or = 50% lumen obstruction at 6-month angiography. RESULTS In the subjective analysis, 2 lesions were type B1, 27 type B2 and 14 type C. The overall restenosis rate was 32.6%. Restenosis was 27.7% for 15 mm stents and 36% for 25 mm stents (p = 0.4). For the QCA parameters analyzed, only MLD at the end of stent implantation was a predictor of 6-month restenosis (2.19 +/- 0.30 without vs. 2.03 +/- 0.18 with restenosis, p = 0.048). CONCLUSIONS The restenosis rate of the Multi-Link 2.5 mm stents, of 15 and 25 mm length, was similar to that described with other types of stents in small coronary arteries. Minimum lumen diameter after stenting was found to be the best predictor of 6-month restenosis.
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Affiliation(s)
- R Seabra-Gomes
- Instituto do Coração Av. Prof. Reynaldo dos Santos, 27 Carnaxide-2795-523 Linda-a-Velha Portugal
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Abstract
Because estrogen (E) accelerates skeletal maturation it can decrease final height attainable with GH therapy in girls with Turner's syndrome (TS). Nonetheless, as age-appropriate E administration does have psychobehavioral benefits for such patients, we asked whether E treatment in TS could occur without adverse impact on final adult height if GH therapy were started at an earlier age. Near adult height (NAH) was assessed in 344 girls with TS, who had received both GH and E and were followed in the National Cooperative Growth Study database. The groups were divided into quartiles based on age at initiation of GH (2-10, 10-12, 12-14, and 14-18 yr). The longest total and E-free period of GH treatment occurred in the girls who had started treatment in the youngest quartile (mean age, 8.2 +/- 1.5 (SD) yr); they were also exposed to E at the youngest age (12.7 +/- 1.6 yr). Although the girls in the youngest group received E at an earlier age, they had a significantly greater increase (1.8 +/- 0.8) in Lyon height SD score at NAH over Lyon predicted adult height than those in the oldest GH-treated group (0.8 +/- 0.6), which first received E at 15.9 +/- 1.3 yr. Multiple linear regression equations for gain in Lyon height SD score and in height (cm) showed greater increments with a longer period of E-free GH therapy. All four GH age groups had the same NAH, but the youngest quartile was youngest at NAH and likely still having more growth potential. Comparable data were found in 127 TS girls with spontaneous puberty. In conclusion, girls with TS starting GH at an early age have a greater gain in Lyon SD score at NAH compared with those starting later, even though they received E at a younger age. If GH therapy were started early, E treatment could be initiated at a younger, more age-appropriate time without compromising adult height.
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Affiliation(s)
- E O Reiter
- Departments of Pediatrics, Baystate Medical Center Children's Hospital and Tufts University School of Medicine, Springfield, Massachusetts 01199, USA.
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Mauras N, Attie KM, Reiter EO, Saenger P, Baptista J. High dose recombinant human growth hormone (GH) treatment of GH-deficient patients in puberty increases near-final height: a randomized, multicenter trial. Genentech, Inc., Cooperative Study Group. J Clin Endocrinol Metab 2000; 85:3653-60. [PMID: 11061518 DOI: 10.1210/jcem.85.10.6906] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
GH production rates markedly increase during human puberty, mostly as an amplitude-modulated phenomenon. However, GH-deficient children have been dosed on a standard per kg BW basis similar to prepubertal children. This randomized study was designed to compare the efficacy and safety of standard recombinant human GH (rhGH) therapy (group I, 0.3 mg/kg x week) vs. high dose therapy (group II, 0.7 mg/kg x week) in GH-deficient adolescents previously treated with rhGH for at least 6 months. Ninety-seven children with documented evidence of GH deficiency (peak GH in response to stimuli, <10 ng/mL), with either organic or idiopathic pathology, were recruited. Both groups were matched for sex (group I, 42 males and 7 females; group II, 41 males and 7 females), age [group I, 14.0+/-1.6 (+/-SD) yr; group II, 13.7+/-1.6], standardized height (group I, -1.4+/-1.1; group II, -1.2+/-1.1), bone age (group I, 13.1+/-1.3 yr; group II, 13.1+/-1.3) etiology, maximum stimulated GH, previous growth rate, and midparental target height. All subjects were in puberty (Tanner stage 2-5) at study entry. Of the 97 subjects enrolled, 45 were treated for 3 yr or more; 48 completed the study. Of the subjects who discontinued the study, the most common reason was satisfaction with their height, although others discontinued for adverse events or personal reasons. The frequency of patients who discontinued was the same in both groups. The primary efficacy analysis was the difference between dose groups for near-adult height, defined as the height attained at a bone age of 16 yr or more in males and 14 yr or more in girls; all subjects who qualified were included in the analysis. This difference was statistically significant at 4.6 cm by analysis of covariance (ANCOVA; P < 0.001; n = 75). For subjects who received at least 4 yr of rhGH treatment, the difference between dose groups at that time point was 5.7 cm (by ANCOVA, P = 0.024; n = 20). The mean height SD score at near-adult height was -0.7+/-0.9 in the standard dose group and 0.0+/-1.2 in the high dose group. At 36 months the cumulative change in height (centimeters) was 21.5+/-5.3 cm (group I) vs. 25.1+/-4.9 (group II; P < 0.001, by ANCOVA); the change in Bayley-Pinneau predicted adult height was 4.8+/-4.2 cm (group I) vs. 8.4+/-5.7 (group II; P = 0.032). Median plasma IGF-I concentrations at baseline were 427 microg/L (range, 204-649) in group I and 435 microg/L (range, 104-837) in group II; at 36 months they were 651 microg/L (range, 139-1079) in group I vs. 910 microg/L (range, 251-1843) in group II (P = NS). No difference in change in bone age was detected between groups at any interval. High dose rhGH was well tolerated, with a similar safety profile as standard dose treatment and no difference in hemoglobin A1c or glucose concentrations between groups. In summary, compared to conventional treatment, high dose rhGH therapy in adolescents 1) increased near-adult height and height SD scores significantly, 2) did not increase the rate of skeletal maturation, and 3) appears to be well tolerated and safe. In conclusion, high dose rhGH therapy may have a beneficial effect in adolescent GH-deficient patients, particularly those who are most growth retarded at the start of puberty.
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Affiliation(s)
- N Mauras
- Nemours Children's Clinic and Research Programs, Jacksonville, Florida 32207, USA.
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Maneatis T, Baptista J, Connelly K, Blethen S. Growth hormone safety update from the National Cooperative Growth Study. J Pediatr Endocrinol Metab 2000; 13 Suppl 2:1035-44. [PMID: 11086659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
We reviewed adverse event (AE) data in the National Cooperative Growth Study from start-up (1985) until January 1, 1999. Enrollment was 33,161. A total of 2,632 AE reports were received; 863 were serious events, with 156 deaths. The most common cause of death was recurrence of intracranial neoplasm. There were 20 reports of leukemia, and the standard morbidity ratio (SMR) was 0.73 (95% CI: 0.20-1.86) for the four cases without risk factors. There were 35 reports of extracranial nonleukemic malignancy, and the SMR was 0.44 (95% CI: 0.24-0.74) for the 14 cases without risk factors. The recurrence rate for all brain tumors present at baseline was 7.6%, and for craniopharyngiomas, 6.4%. There were 49 reports of intracranial hypertension (20 patients had papilledema), 68 reports of diabetes/hyperglycemia, 45 of slipped capital femoral epiphysis, 136 of scoliosis, and five of pancreatitis. There was no evidence of increased incidence of leukemia or extracranial nonleukemic malignancies among patients without prior risk factors. Intracranial hypertension does not necessarily occur early in growth hormone therapy. Other findings were consistent with past observations.
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Affiliation(s)
- T Maneatis
- Drug Safety, Department of Medical Affairs, Genentech, Inc., South San Francisco, CA 94080, USA.
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Almeida M, Cavaco DM, Ribeiro MA, Teles RC, Martins V, Machado FP, Baptista J, Palos J, Silva JM, Seabra-Gomes R. [The angioplasty of chronic coronary occlusions with the excimer laser for debulking followed by stent implantation]. Rev Port Cardiol 2000; 19:67-71. [PMID: 10731791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023] Open
Abstract
UNLABELLED Coronary angioplasty (PCI) of chronic total occlusions (CTO), even when successful, are associated to less favourable long term results. The recent use of coronary stents has improved the long term outcome of those interventions. PURPOSE To evaluate the short term results and long term occurrence of major adverse coronary events (MACE): death, MI, urgent revascularization and the need for a new target vessel revascularization (TVR) in patients with CTO who had previously been submitted to a PCI with excimer laser for plaque debulking followed by a provisional stent. POPULATION From our database, we selected 19 patients with a mean age of 51 +/- 13 years (18 male) submitted to PCI between 1994 and 1998. Of those patients, 10 had had of a previous MI. Hypertension, smoking habits and hypercholesterolemia were present in 9 patients (42%). Two patients had diabetes. The main reason for PCI was stable angina in 16 patients (84%) and unstable in 3 patients (16%). Single-vessel disease was present in 18 patients (94%) and multiple-vessel in 1 patient (6%); left ventricular ejection fraction was preserved in 18 patients (94%). Single vessel PCI was performed in 16 patients (84%) and double vessel in 3 patients. Plaque debulking with excimer laser was performed in all patients, followed by 23 stents (Multilink--8; Gianturco Roubin--5; Palmaz Schatz--4; others--6). The mean clinical follow-up was 19 months. RESULTS There were no major short-term clinical events (death, MI or urgent revascularization). During follow-up, TVR was only required in 5 patients (26%), all of them in the first 7 months after PCI. CONCLUSIONS In the highly selected population, PCI for chronic total occlusion, with excimer laser plaque debulking followed by provisional stents, was a safe procedure with a very acceptable rate of new target vessel revascularization in the follow-up period.
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Affiliation(s)
- M Almeida
- Serviço de Cardiologia, Hospital de Santa Cruz, Carnaxide
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Frindik JP, Baptista J. Adult height in growth hormone deficiency: historical perspective and examples from the national cooperative growth study. Pediatrics 1999; 104:1000-4. [PMID: 10506251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/14/2023] Open
Abstract
There are few historical data on final or adult heights after the completion of long-term growth hormone (GH) therapy in children with GH deficiency (GHD). Adult height has been defined as that achieved at chronologic ages ranging from 18 to 30 years, at bone ages >/=13 years (girls) and >/=15 years (boys), at growth velocities </=1 to 2 cm per 6 to 12 months, at the "cessation of growth," at "1 year after the completion of pubertal development," and that at which patients are either "satisfied with their height" or have attained an "accept adult stature." Without GH treatment, children with GHD have a mean adult height standard deviation score of -4.7 (range, -6. 1 to -3.9). After treatment, the standard deviation score range from -4.7 to -1.2 (pituitary GH [pitGH] 2-4 times a week) and from -1.4 to -0.5 (recombinant human [rhGH] GH 3 times a week to daily) in women and from -3.6 to -1.1 (pitGH) and from -1.3 to -0.7 (rhGH) in men. Because there is no uniformly applied definition of adult height, comparisons are difficult, but historical data suggest that posttreatment heights are greater with rhGH than with pitGH. Using the National Cooperative Growth Study database, we found that the criteria used to define adult height affected the apparent outcome. When chronologic age >/=20 years for men and >/=18 years for women was the only criterion, 27% of patients grew >/=5 cm after having reached this age. Adding the requirement of advanced puberty before adult height could be considered to have been attained reduced the proportion of those who later grew >/=5 cm to <10%, but also decreased the number of patients available for analysis. A combination of criteria for adult height (chronologic and bone age >/=16 years for boys and >/=14 years for girls plus advanced puberty plus growth rate of <2 cm per year) left only 1% of patients with later growth of >/=5 cm.
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Affiliation(s)
- J P Frindik
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, Arkansas.
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Mesquita A, Baptista J, Palos J, Seabra-Gomes R. The glycoprotein IIb/IIIa receptor inhibitor (abciximab) in ST-segment elevation myocardial infarction. J Invasive Cardiol 1999; 11:379-82. [PMID: 10745556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
A successful therapy is presented using the antiplatelet agent abciximab, alone, in an ST-segment elevation acute myocardial infarction. The patient was treated in a center with permanent catheterization facilities. Clinical trials are necessary to validate the efficacy and the cost-effectiveness of this clinical decision and therapeutic option.
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Affiliation(s)
- A Mesquita
- Cardiology Division, Hospital de Santa Cruz, Av. Prof. Reynaldo dos Santos, 2795 Carnaxide, Portugal
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Abstract
BACKGROUND Short-term administration of growth hormone to children with idiopathic short stature results in increases in growth rate and standard-deviation scores for height. However, the effect of long-term growth hormone therapy on adult height in these children is unknown. METHODS We studied 121 children with idiopathic short stature, all of whom had an initial height below the third percentile, low growth rates, and maximal stimulated serum concentrations of growth hormone of at least 10 microg per liter. The children were treated with growth hormone (0.3 mg per kilogram of body weight per week) for 2 to 10 years. Eighty of these children have reached adult height, with a bone age of at least 16 years in the boys and at least 14 years in the girls, and pubertal stage 4 or 5. The difference between the predicted adult height before treatment and achieved adult height was compared with the corresponding difference in three untreated normal or short-statured control groups. RESULTS In the 80 children who have reached adult height, growth hormone treatment increased the mean standard-deviation score for height (number of standard deviations from the mean height for chronologic age) from -2.7 to -1.4. The mean (+/-SD) difference between predicted adult height before treatment and achieved adult height was +5.0+/-5.1 cm for boys and +5.9+/-5.2 cm for girls. The difference between predicted and achieved adult height among treated boys was 9.2 cm greater than the corresponding difference among untreated boys with initial standard-deviation scores of less than -2, and the difference among treated girls was 5.7 cm greater than the difference among untreated girls. CONCLUSION Long-term administration of growth hormone to children with idiopathic short stature can increase adult height to a level above the predicted adult height and above the adult height of untreated historical control children.
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Seabra-Gomes R, Luís-Palos J, Machado FP, Baptista J, Silva JM, Gil V, Almeida M, Mesquita A, Teles R. [Peripheral revascularization by cardiologists]. Rev Port Cardiol 1999; 18:133-8. [PMID: 10221042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023] Open
Abstract
OBJECTIVE To analyse the initial experience in peripheral arterial revascularization, using percutaneous techniques, by interventional cardiologists. DESIGN Retrospective clinical study. SETTING Cardiology department of a specialised public non-university hospital. PATIENTS Twenty patients, 18 male and 2 female, with ages between 37 and 84 years, who underwent peripheral interventions between May 5 1989 and February 20 1998. INTERVENTIONS Patients were subdivided into two groups: Group I, 9 patients, 8 male, average age of 56 +/- 13 years, undergoing renal artery angioplasty; Group II, 11 patients, 10 male, average age of 63 +/- 10 years, undergoing angioplasty of the distal aorta (1), of the right subclavian artery (1), of the iliac arteries (6) and of the femoral arteries (3). In Group I, 11 arteries were dilated, 6 by balloon angioplasty and 5 with stent implantation (Palmaz-Schatz--4 and Symphony--1). In Group II, 12 arteries were dilated, 5 by balloon angioplasty and 7 with 12 stent implantations (Palmaz-Schatz--6, Symphony--5 and NIRTM--1). In 8 patients, 1 of Group I and 7 of Group II, coronary angioplasty was also performed in 14 arteries and 18 segments, exclusively by balloon (3 patients) or with 10 stent implantations (5 patients). RESULTS There was angiographic success in all patients (100%) and clinical success in 85% (17/20) of patients. All clinical complications occurred in Group I patients: retroperitoneal bleeding in one; right femoral artery pseudoaneurysm requiring surgery in one patient: acute renal failure in one patient. There were no cardiac complications in patients undergoing peripheral and cardiac angioplasties at the same stage. In the mean follow-up period of 26 months, one patient required reangioplasty of a right iliac artery and another underwent iliac-femoral bypass, both of Group II and before peripheral stents were available. CONCLUSIONS Percutaneous peripheral arterial revascularization performed by experienced interventional cardiologists seems safe and efficient, being perfectly justified in patients requiring simultaneous coronary angioplasty.
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Affiliation(s)
- R Seabra-Gomes
- Serviço de Cardiologia, Hospital de Santa Cruz, Carnaxide
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Almeida M, Ferreira J, Real T, Machado F, Baptista J, Palos J, Silva A, Seabra-Gomes R. [Elective coronary angioplasty in acute coronary syndromes: early versus delayed treatment]. Rev Port Cardiol 1999; 18:29-33. [PMID: 10091522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023] Open
Abstract
BACKGROUND In patients with acute coronary syndromes (ACS) the optimal time required to stabilize the patient before attempting coronary intervention (PTCA) is uncertain. The recent use of newer devices and antiplatelet drugs allowed earlier percutaneous intervention. OBJECTIVE We examined the efficacy and safety of coronary angioplasty in patients with ACS according to the period of stabilization with medical therapy. METHODS We included 83 patients, 15 female, 54 with unstable angina and 29 with non-ST elevation myocardial infarction. We studied the rate of complications related to the procedure, the duration of CCU and hospital stay according to the period of stabilization with medical therapy: < 48 hours (early PTCA) and > or = 48 hours (delayed PTCA). RESULTS No significant differences were found between the two groups of patients with respect to success rate (92% in early PTCA vs 98% in delayed PTCA), stents implantation (74% vs 78%), use of abeiximab (42% vs 24%), abrupt closure during procedure (3% vs 2%), infarct related procedure (0% vs 7%), re-PTCA (5% vs 7%) and surgical revascularization (0% vs 2%). No deaths occurred, CCU stay (2.5 vs 6.7 days, p < 0.001) and hospital stay (4 vs 9.4 days, p = 0.001) were significantly shorter in the group of early PTCA. CONCLUSIONS In the present group of patients with ACS, early coronary intervention was a safe procedure with a shorter CCU and hospital stay compared with deferred PTCA.
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Affiliation(s)
- M Almeida
- Serviço de Cardiologia, Hospital de Santa Cruz, Carnaxide
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Mesquita A, Palos JL, Baptista J, Seabra-Gomes R. [Total occlusion of the left common coronary artery--a case report]. Rev Port Cardiol 1998; 17:919-21. [PMID: 9927862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023] Open
Abstract
Total chronic occlusion of the left main coronary artery is an unusual finding. After a review of the literature, the authors present a case report of a patient with stable angina and total occlusion of the left main coronary artery, right coronary with atherosclerotic lesions and normal ventricular function.
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Affiliation(s)
- A Mesquita
- Serviço de Cardiologia, Hospital de Santa Cruz, Carnaxide
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Mesquita A, Almeida M, Seabra-Gomes R, Baptista J, Machado FP, Palos JL, Silva A. [Revascularization in patients with prior coronary bypass surgery]. Rev Port Cardiol 1998; 17:795-800. [PMID: 9865089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023] Open
Abstract
UNLABELLED Increasingly over the past several years, patients have returned after coronary surgery for reintervention procedures. This reflects immediate postsurgical complications and the relentless progression of coronary artery disease in the native circulation and in the bypass grafts. Although there are randomized comparative data for coronary bypass surgery (CABG) versus percutaneous transluminal coronary angioplasty (PTCA) and medical therapy, these trials have always excluded patients with previous (GABG). OBJECTIVES We attempted to compare the risks and benefits of percutaneous transluminal coronary angioplasty (PTCA) and repeat coronary artery bypass grafting (re-CABG) in patients with previous coronary bypass surgery (CABG). METHODS AND RESULTS This study examines follow up data (15.4 +/- 11.0 months) from 130 patients with previous CABG, who required either PTCA (Group A, n = 73) or re-CABG (Group B; n = 57) at a single center from 1994 to 1997. Follow up data were obtained from subsequent office visits and telephone calls. The PTCA and re-CABG groups were similar with respect to gender (86% vs 94% males), mean age (62 +/- 9 vs 59 +/- 10 years), angina CCS classes 3 and 4 (73% vs 69%), diminished left ventricular function (23% vs 26%), risk factors such as diabetes (19% vs 17%), hypercolesterolemia (49% vs 45%) and smoking (48% vs 39%) and three-vessel native coronary artery disease (67% vs 72%). The symptomatic status prior to the revascularization procedure was similar in both groups. Complete and functional revascularization was achieved in 85% of the PTCA group and in 92% of those with re-CABG (p = NS). During the hospital stay the complication rates were lower in the PTCA group. Actuarial survival was different at follow up (p = 0.04). Both PTCA and re-CABG groups resulted in equivalent event-free survival (freedom from death, myocardial infarction, unstable angina and urgent revascularization). The need for repeat revascularization at follow up was significantly higher in the PTCA group (PTCA 28% vs re-CABG 10%, p < 0.01). CONCLUSIONS In this non-randomized study of patients with previous CABG requiring revascularization procedures, PTCA resulted in lower procedural morbidity and mortality risks. At follow up, both PTCA or CABG were similar for event-free survival; PTCA offered lower overall mortality, although it is associated to a greater need for subsequent revascularization procedures.
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Affiliation(s)
- A Mesquita
- Serviço de Cardiologia, Hospital de Santa Cruz, Carnaxide
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Baptista J, Mesquita A, Machado F, Palos J, Silva A, Almeida M, Figueiredo H, Baptista C, Seabra-Gomes R. [Kissing stenting--the initial experience and preliminary results]. Rev Port Cardiol 1997; 16:1019-22. [PMID: 9522624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
- J Baptista
- Serviço de Cardiologia, Hospital de Santa Cruz, Carnaxide
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Mesquita A, Baptista J, Almeida M, Ferreira J, Machado F, Palos L, Silva A, Seabra-Gomes R. [The role of abciximab in the prevention of the acute thrombotic complications of coronary angioplasty]. Rev Port Cardiol 1997; 16:1031-5. [PMID: 9522626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
- A Mesquita
- Serviço de Cardiologia, Hospital de Santa Cruz, Carnaxide
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Seabra-Gomes R, Machado FP, Baptista J, Palos JL, Gonçalves N, Alves R, Bettencourt V. [Laser coronary angioplasty for an intrastent stenosis]. Rev Port Cardiol 1997; 16:1025-8. [PMID: 9522625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
- R Seabra-Gomes
- Serviço de Cardiologia, Hospital de Santa Cruz, Carnaxide
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Blethen SL, Baptista J, Kuntze J, Foley T, LaFranchi S, Johanson A. Adult height in growth hormone (GH)-deficient children treated with biosynthetic GH. The Genentech Growth Study Group. J Clin Endocrinol Metab 1997; 82:418-20. [PMID: 9024229 DOI: 10.1210/jcem.82.2.3734] [Citation(s) in RCA: 88] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Near-adult height (AH) was determined in 121 children (72 males and 49 females) with GH deficiency (GHD) who were prepubertal when they began treatment with recombinant DNA-derived preparations of human GH. AH as a SD score was -0.7 +/- 1.2 (mean +/- SD), significantly greater than the pretreatment height SD score (-3.1 +/- 1.2), the predicted AH SD score (-2.2 +/- 1.2; Bayley-Pinneau method), and the height SD score at the start of puberty (-1.9 +/- 1.3). In contrast to studies of GH treatment outcome, which used pituitary-derived GH (pit-GH) in lower doses, we found that males did not have a higher AH SD score than females, spontaneous puberty did not diminish AH, and AH was significantly greater than that predicted at the start of GH treatment. In a multiple regression equation, the statistically significant variables (all P < 0.0001) related to AH (r2 = 0.70) were the following: duration of treatment with GH, sex (males were taller than females, as expected for the normal population), age (younger children had a greater AH) and height at the start of GH, and growth rate during first year of GH. For the AH SD score (r2 = 0.47), pretreatment predicted AH, duration of GH, and bone age delay were significant (P < 0.0002) explanatory variables. Bone age delay (chronological age-bone age) had a negative impact on the AH SD score. Target height, etiology of GHD, previous treatment with pituitary GH, and the presence or absence of spontaneous puberty did not significantly improve the prediction of AH. Early diagnosis of GHD and continuous treatment with larger doses of GH to near AH should improve the outcome in children with short stature due to GHD.
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Affiliation(s)
- S L Blethen
- Department of Pediatrics, State University of New York, Stony Brook 11794-8111, USA
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Escaned J, Baptista J, Di Mario C, Haase J, Ozaki Y, Linker DT, de Feyter PJ, Roelandt JR, Serruys PW. Significance of automated stenosis detection during quantitative angiography. Insights gained from intracoronary ultrasound imaging. Circulation 1996; 94:966-72. [PMID: 8790033 DOI: 10.1161/01.cir.94.5.966] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
BACKGROUND Automated stenosis analysis is a common feature of commercially available quantitative coronary angiography (QCA) systems, allowing automatic detection of the boundaries of the stenosis, interpolation of the expected dimensions of the coronary vessel at the point of obstruction, and angiographically derived estimation of atheromatous plaque size. However, the ultimate meaning of this type of analysis in terms of the degree of underlying atherosclerotic disease remains unclear. We investigated the relationship between stenosis analysis performed with QCA and the underlying degree of atherosclerotic disease judged by intracoronary ultrasound (ICUS) imaging. METHODS AND RESULTS In 40 coronary stenoses, automated identification of the sites of maximal luminal obstruction and the start of the stenosis was performed with QCA by use of curvature analysis of the obtained diameter function. Plaque size at these locations also was estimated with ICUS, with an additional ICUS measurement immediately proximal to the start of the stenosis. Crescentlike distribution of plaque, indicating an atheroma-free arc of the arterial wall, was recorded. At the site of the obstruction, total vessel area measured with ICUS was 16.65 +/- 4.04 mm2, whereas an equivalent measurement obtained from QCA-interpolated reference dimensions was 7.48 +/- 3.30 mm2 (P = .0001). Plaque area derived from QCA data was significantly less than that calculated from ICUS (6.32 +/- 3.21 and 13.29 +/- 4.22 mm2, respectively; mean difference, 6.92 +/- 4.43 mm2; P = .0001). At the start of the stenosis identified by automated analysis, ICUS plaque area was 9.38 +/- 3.17 mm2, and total vessel area was 18.77 +/- 5.19 mm2 (50 +/- 11% total vessel area stenosis). The arterial wall presented a disease-free segment in 28 proximal locations (70%) but in only 5 sites (12%) corresponding to the start of the stenosis and none at the obstruction (P = .0001). At the site of obstruction, all vessels showed a complete absence of a disease-free segment, and the atheroma presented a cufflike or all-around distribution with a variable degree of eccentricity. CONCLUSIONS At the site of maximal obstruction, QCA underestimated plaque size as measured with ICUS. Atherosclerotic disease was consistently present at the start of the stenosis and was used as a reference site by automated stenosis analysis. At the start of the stenosis, ICUS demonstrated a mean 50 +/- 11% total vessel area stenosis, with a characteristic loss of disease-free arcs of arterial wall present in proximal locations. Thus, the site identified by automated stenosis analysis as the start of the stenosis does not represent a disease-free site but rather the place where compensatory vessel enlargement fails to preserve luminal dimensions, a phenomenon that seems related to the observed loss of a remnant arc of normal arterial wall.
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Affiliation(s)
- J Escaned
- Cardiac Catheterisation and Intracoronary Imaging Laboratories, Thoraxcenter, Rotterdam, The Netherlands
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MacGillivray MH, Baptista J, Johanson A. Outcome of a four-year randomized study of daily versus three times weekly somatropin treatment in prepubertal naive growth hormone-deficient children. Genentech Study Group. J Clin Endocrinol Metab 1996; 81:1806-9. [PMID: 8626839 DOI: 10.1210/jcem.81.5.8626839] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
A comparison was made of the growth responses of prepubertal naive GH-deficient children who were randomly assigned to receive 0.3 mg/kg.week recombinant human GH administered either daily (QD) or three times weekly (TIW) over 4 yr. The effects of the two regimens on annual growth velocity, change in height SD score, bone maturation, and age at onset of puberty are presented as the mean +/- SD. During each of the 4 yr, the annual growth velocity was significantly greater in the QD vs. TIW group. At 48 months, the mean total gain in height was 9.7 cm greater in the QD group (38.4 +/- 5.5) than that in the TIW group 28.7 +/- 3.2; P = 0.0002). The mean height SD score at the end of each year was significantly greater in the QD group. After 4 yr, the total gain in height SD score was 3.2 +/- 1.2 in the QD group compared to 1.5 +/- 0.5 in the TIW group (P = 0.0003). The height SD score at 4 yr was 0.2 in the QD group (pretreatment, -2.9) compared to -1.4 in the TIW group (pretreatment, -2.9). After 4 yr of rhGH treatment, the increment in bone age was similar in the QD (4.9 +/- 1.0 yr) and TIW (4.8 +/- 1.1 yr) groups. The change in height age minus the change in bone age was more favorable in the QD (1.2 +/- 0.8 yr) than in the TIW (0.0 +/- 0.9 yr) group (P = 0.003). The mean age at onset of puberty in boys was the same in the QD (13.2 yr) and TIW (13.0 yr) groups (P = 0.71), and the mean bone age at the start of puberty was also similar (11.5 in QD and 11.3 in TIW groups; P = 0.66). The advantages of QD rhGH treatment in prepubertal GH-deficient children after 4 yr were additional gains of 1.7 height SD score and 9.7 cm in height over those treated with the TIW regimen (P = 0.0002).
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Affiliation(s)
- M H MacGillivray
- State University of New York School of Medicine, Children's Hospital of Buffalo 14222, USA
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