RESUMO Contexto: Doença inflamatória intestinal (DII), representada pela doença de Crohn (DC) e retocolite ulcerativa (RCU), é uma condição crônica e progressiva que afeta todas as faixas etárias, embora predomine em indivíduos jovens. Atualmente, tem sido documentado um aumento na prevalência de DII, de forma paralela ao aumento da população idosa. O escasso número de estudos que melhor caracterizem o impacto da DII na qualidade de vida (QV) em idosos motivou o presente estudo. Objetivo: Avaliar o impacto da DII na QV de idosos atendidos em um centro terciário de DII. Métodos: Estudo prospectivo transversal que incluiu pacientes idosos (idade ≥60 anos) com DII, atendidos pelo Centro de DII do HU-UFJF, entre março de 2019 a dezembro de 2022, e que apresentavam remissão clínica ou atividade leve de doença. Acompanhantes idosos sem comorbidades graves que compareceram à consulta com os pacientes foram incluídos como grupo controle. Foram registradas características sociodemográficas e relativas a DII. A QV foi avaliada por meio de questionários previamente validados (WHOQOL-BREF e IBDQ). Pacientes com DII com atividade moderada a grave, história de hospitalização recente ou iminente, infecções graves ou oportunistas nos últimos 6 meses, neoplasia prévia, demência, dificuldade de compreensão/ preenchimento dos questionários foram excluídos. Resultados: Foram incluídos 123 pacientes (74 com DII e 49 no grupo controle), com idade média de 67±6,2 anos, sendo 52,7% com DC e 47,3% com RCU. Atividade leve da doença foi observada em 31,1%. Ambos os grupos (pacientes com DII e controle) foram comparáveis com base na idade, sexo, IMC e Índice de Comorbidade de Charlson. Pacientes com DII e controle apresentaram escores de QV similares nos diferentes domínios avaliados pelo WHOQOL-BREF. Por outro lado, quando avaliada a faceta geral de QV, pacientes com DII apresentaram escores significativamente menores na QV geral (3,71±0,87 versus 4,02±0,62, respectivamente; P=0,021) e na saúde geral (3,32±1,05 versus 3,69±0,94, respectivamente; P=0,035). A presença de atividade leve impactou negativamente nos escores de saúde geral e de domínio físico do WHOQOL-BREF quando comparados com pacientes em remissão (2,91±0,99 versus 3.47±1,04, respectivamente; P=0,035 e 12,27±2.63 versus 13,86±2,61, respectivamente; P=0,019). Não foi observado impacto na QV com a aplicação do questionário IBDQ no que se refere ao tipo de DII (161±38.5 versus 163.1±42,6 para DC e RCU, respectivamente; P=0.84) ou a presença de atividade (152.5±38.8 versus 166.4±40.5, respectivamente; P=0.17). Conclusão: Não foram encontradas diferenças estatisticamente significativas entre pacientes idosos com DII em atividade leve ou quiescente e pacientes idosos sem DII quando observados os escores globais de QV. Porém, a DII impactou negativamente a faceta geral de QV, assim como a presença de atividade leve esteve associada a menores escores na saúde geral e no domínio físico avaliado pelo WHOQOL-BREF. Pacientes com DII tratados com terapia biológica apresentaram melhor QV do que aqueles em terapia convencional. Estudos futuros são necessários para escolha de ferramenta mais adequada para avaliação de QV nessa população. Contexto , (DII) (DC RCU (RCU) etárias jovens Atualmente idosa (QV estudo Objetivo Métodos 60 ≥6 anos HUUFJF, HUUFJF HU UFJF, UFJF HU-UFJF 201 2022 WHOQOLBREF WHOQOL BREF IBDQ. . IBDQ) grave iminente meses prévia demência compreensão excluídos Resultados 12 74 (7 4 controle, 6762 67 2 67±6, 527 52 7 52,7 473 47 3 47,3 311 31 1 31,1% sexo Charlson WHOQOLBREF. BREF. lado 3,71±0,87 371087 71 0 87 (3,71±0,8 402062 02 62 4,02±0,62 respectivamente P=0,021 P0021 P 021 3,32±1,05 332105 32 05 (3,32±1,0 369094 69 94 3,69±0,94 P=0,035. P0035 035 P=0,035) 2,91±0,99 291099 91 99 (2,91±0,9 347104 04 3.47±1,04 P=0,03 1227263 27 63 12,27±2.6 1386261 13 86 61 13,86±2,61 P=0,019. P0019 P=0,019 019 P=0,019) 161±38.5 161385 161 38 5 (161±38. 1631426 163 42 163.1±42, P=0.84 P084 84 152.5±38.8 1525388 152 8 (152.5±38. 1664405 166 40 166.4±40.5 P=0.17. P017 P=0.17 17 P=0.17) Conclusão Porém convencional (DII (RCU ≥ 20 202 ( 676 67±6 52, 47, 31,1 3,71±0,8 37108 (3,71±0, 40206 4,02±0,6 P=0,02 P002 3,32±1,0 33210 (3,32±1, 36909 9 3,69±0,9 P003 03 2,91±0,9 29109 (2,91±0, 34710 3.47±1,0 P=0,0 122726 12,27±2. 138626 13,86±2,6 P001 P=0,01 01 161±38. 16138 16 (161±38 163142 163.1±42 P=0.8 P08 152.5±38. 152538 15 (152.5±38 166440 166.4±40. P01 P=0.1 67± 31, 3,71±0, 3710 (3,71±0 4020 4,02±0, P00 3,32±1, 3321 (3,32±1 3690 3,69±0, 2,91±0, 2910 (2,91±0 3471 3.47±1, P=0, 12272 12,27±2 13862 13,86±2, 161±38 1613 (161±3 16314 163.1±4 P=0. P0 152.5±38 15253 (152.5±3 16644 166.4±40 3,71±0 371 (3,71± 402 4,02±0 3,32±1 332 (3,32± 369 3,69±0 2,91±0 291 (2,91± 347 3.47±1 P=0 1227 12,27± 1386 13,86±2 161±3 (161± 1631 163.1± 152.5±3 1525 (152.5± 1664 166.4±4 3,71± 37 (3,71 4,02± 3,32± 33 (3,32 36 3,69± 2,91± 29 (2,91 34 3.47± P= 122 12,27 138 13,86± 161± (161 163.1 152.5± (152.5 166.4± 3,71 (3,7 4,02 3,32 (3,3 3,69 2,91 (2,9 3.47 12,2 13,86 (16 163. 152.5 (152. 166.4 3,7 (3, 4,0 3,3 3,6 2,9 (2, 3.4 12, 13,8 (1 152. (152 166. 3, (3 4, 2, (2 3. 13, (15

ABSTRACT Background: Inflammatory bowel disease (IBD), represented by Crohn’s disease (CD) and ulcerative colitis (UC), is a chronic condition that affects all age groups, predominantly in young individuals. Currently, an increase in the prevalence of IBD has been documented, in parallel with the increase in the elderly population. The scarce number of studies that better characterize the impact of IBD on Quality of Life (QoL) in the elderly motivated the present study. Objective: To evaluate the impact of IBD on the QoL of elderly people treated at a Tertiary IBD Center. Methods: Prospective cross-sectional study that included elderly patients (age ≥60 years) with quiescent or mildly active IBD treated at the HU-UFJF IBD Center between March 2019 and December 2022. Elderly companions without severe comorbidities who attended the consultation with the patients were included as a control group. Sociodemographic and IBD-related characteristics were recorded. QoL was assessed using previously validated questionnaires (WHOQOL-BREF and IBDQ). Patients with IBD with moderate to severe activity, history of recent or imminent hospitalization, serious or opportunistic infections in the last 6 months, previous neoplasia, dementia, and difficulty understanding/fulfilling the questionnaires were excluded. Results: A total of 123 patients were included (74 with IBD and 49 in the control group), with a mean age of 67±6.2 years, 52.7% with CD, and 47.3% with UC. Mild disease activity was observed in 31.1%. Both groups (IBD patients and control) were comparable based on age, sex, BMI, and the Charlson Comorbidity Index. Patients with IBD and controls had similar QoL scores in the different domains assessed by the WHOQOL-BREF. On the other hand, when evaluating the general facet of QoL, IBD patients had significantly lower scores in General QoL (3.71±0.87 versus 4.02±0.62, respectively; P=0.021) and General Health (3.32±1.05 versus 3.69±0.94, respectively; P=0.035). The presence of mildly active IBD negatively impacted the general health score (2.91±0.99 versus 3.47±1.04, respectively; P=0.035) and the physical domain of the WHOQOL-BREF (12.27±2.63 versus 13.86±2.61, respectively; P=0.019) when compared to patients in remission. Conversely, no impact on QoL was observed with the Application of the IBDQ questionnaire regarding the type of the disease (161±38.5 versus 163.1±42.6 for CD and UC, respectively; P=0.84) or the presence of activity (152.5±38.8 versus 166.4±40.5, respectively; P=0.17). Conclusion: No statistically significant differences were found between elderly patients with mildly active or quiescent IBD and elderly patients without IBD when observing global QoL scores. However, IBD negatively impacted the general facet of QoL, just as mild activity was associated with lower scores in general health and the physical domain assessed by the WHOQOL-BREF. Patients with IBD treated with biological therapy had better Qol than those on conventional therapy. Future studies are needed to choose the most appropriate tool for assessing QoL in this population. Background IBD, , (IBD) Crohns Crohn s (CD UC (UC) individuals Currently documented population (QoL Objective Methods crosssectional cross sectional 60 ≥6 years HUUFJF HU UFJF 201 2022 group IBDrelated related recorded WHOQOLBREF WHOQOL BREF IBDQ. . IBDQ) hospitalization months neoplasia dementia understandingfulfilling understanding fulfilling excluded Results 12 74 (7 4 group, group) 6762 67 2 67±6. 527 52 7 52.7 473 47 3 47.3 311 31 1 31.1% sex BMI Index WHOQOLBREF. BREF. hand 3.71±0.87 371087 71 0 87 (3.71±0.8 402062 02 62 4.02±0.62 respectively P=0.021 P0021 P 021 3.32±1.05 332105 32 05 (3.32±1.0 369094 69 94 3.69±0.94 P=0.035. P0035 P=0.035 035 2.91±0.99 291099 91 99 (2.91±0.9 347104 04 3.47±1.04 12.27±2.63 1227263 27 63 (12.27±2.6 1386261 13 86 61 13.86±2.61 P=0.019 P0019 019 remission Conversely 161±38.5 161385 161 38 5 (161±38. 1631426 163 42 163.1±42. P=0.84 P084 84 152.5±38.8 1525388 152 8 (152.5±38. 1664405 166 40 166.4±40.5 P=0.17. P017 P=0.17 17 P=0.17) Conclusion However (UC ≥ 20 202 ( 676 67±6 52. 47. 31.1 3.71±0.8 37108 (3.71±0. 40206 4.02±0.6 P=0.02 P002 3.32±1.0 33210 (3.32±1. 36909 9 3.69±0.9 P003 P=0.03 03 2.91±0.9 29109 (2.91±0. 34710 3.47±1.0 12.27±2.6 122726 (12.27±2. 138626 13.86±2.6 P=0.01 P001 01 161±38. 16138 16 (161±38 163142 163.1±42 P=0.8 P08 152.5±38. 152538 15 (152.5±38 166440 166.4±40. P01 P=0.1 67± 31. 3.71±0. 3710 (3.71±0 4020 4.02±0. P=0.0 P00 3.32±1. 3321 (3.32±1 3690 3.69±0. 2.91±0. 2910 (2.91±0 3471 3.47±1. 12.27±2. 12272 (12.27±2 13862 13.86±2. 161±38 1613 (161±3 16314 163.1±4 P=0. P0 152.5±38 15253 (152.5±3 16644 166.4±40 3.71±0 371 (3.71± 402 4.02±0 3.32±1 332 (3.32± 369 3.69±0 2.91±0 291 (2.91± 347 3.47±1 12.27±2 1227 (12.27± 1386 13.86±2 161±3 (161± 1631 163.1± P=0 152.5±3 1525 (152.5± 1664 166.4±4 3.71± 37 (3.71 4.02± 3.32± 33 (3.32 36 3.69± 2.91± 29 (2.91 34 3.47± 12.27± 122 (12.27 138 13.86± 161± (161 163.1 P= 152.5± (152.5 166.4± 3.71 (3.7 4.02 3.32 (3.3 3.69 2.91 (2.9 3.47 12.27 (12.2 13.86 (16 163. 152.5 (152. 166.4 3.7 (3. 4.0 3.3 3.6 2.9 (2. 3.4 12.2 (12. 13.8 (1 152. (152 166. 3. (3 4. 2. (2 12. (12 13. (15

SUMMARY In the emergency care of cancer patients, in addition to cancer-related factors, two aspects influence the outcome: (1) where the patient is treated and (2) who will perform the surgery. In Brazil, a significant proportion of patients with surgical oncological emergencies will be operated on in general hospitals by surgeons without training in oncological surgery. OBJECTIVE: The objective was to discuss quality indicators and propose the creation of an urgent oncological surgery advanced life support course. METHODS: Review of articles on the topic. RESULTS: Generally, nonelective resections are associated with higher rates of morbidity and mortality, as well as lower rates of cancer-specific survival. In comparison to elective procedures, the reduced number of harvested lymph nodes and the higher rate of positive margins suggest a compromised degree of radicality in the emergency scenario. CONCLUSION: Among modifiable factors is the training of the emergency surgeon. Enhancing the practice of oncological surgery in emergency settings constitutes a formidable undertaking that entails collaboration across various medical specialties and warrants endorsement and support from medical societies and educational institutions. It is time to establish a national registry encompassing oncological emergencies, develop quality indicators tailored to the national context, and foster the establishment of specialized training programs aimed at enhancing the proficiency of physicians serving in emergency services catering to cancer patients. cancerrelated related outcome 1 (1 2 (2 Brazil OBJECTIVE course METHODS topic RESULTS Generally mortality cancerspecific specific survival procedures scenario CONCLUSION surgeon institutions context (

ABSTRACT The article discusses the evolution of the Brazilian College of Surgeons (CBC) specialist title exam, highlighting the importance of evaluating not only theoretical knowledge, but also the practical skills and ethical behavior of candidates. The test was instituted in 1971, initially with only the written phase, and later included the oral practical test, starting with the 13th edition in 1988. In 2022, the assessment process was improved by including the use of simulated stations in the practical test, with the aim of assessing practical and communication skills, as well as clinical reasoning, in order to guarantee excellence in the assessment of surgeons training. The aim of this study is to demonstrate the performance of candidates in the last five years of the Specialist Title Test and to compare the performance results between the different surgical training groups of the candidates. The results obtained by candidates from the various categories enrolled in the test in the 2018 to 2022 editions were analyzed. There was a clear and statistically significant difference between doctors who had completed three years of residency recognized by the Ministry of Education in relation to the other categories of candidates for the Specialist Title.. CBC (CBC exam knowledge 1971 phase th 1988 reasoning 201 202 analyzed Title. 197 198 20 19 2 1

RESUMO O artigo aborda a evolução da prova de título de especialista do Colégio Brasileiro de Cirurgiões (CBC), destacando a importância de avaliar não apenas o conhecimento teórico, mas também as habilidades práticas e o comportamento ético dos candidatos. A prova foi instituída em 1971, inicialmente com apenas a fase escrita, e posteriormente foi incluída a prova prática oral, a partir da 13ª edição em 1988. Em 2022, foi aprimorado o processo de avaliação, incluindo na prova prática o uso de estações simuladas, visando avaliar habilidades práticas e de comunicação, além do raciocínio clínico, buscando garantir a excelência da avaliação da formação dos cirurgiões. O objetivo deste estudo é demonstrar o desempenho dos candidatos nos últimos cinco anos da Prova de Título de Especialista e comparar os resultados dos desempenhos entre os diferentes grupos de formação cirúrgica dos candidatos. Foram analisados os resultados obtidos pelos candidatos das diversas categorias inscritas na prova nas edições de 2018 a 2022. Ficou evidente e estatisticamente significativa a diferença entre os médicos que fizeram três anos de residência reconhecida pelo MEC em relação aos demais categorias de candidatos ao Título de Especialista. CBC, CBC , (CBC) teórico 1971 escrita oral ª 1988 2022 simuladas comunicação clínico cirurgiões 201 (CBC 197 198 202 20 19 2 1

ABSTRACT Objective: The purpose of these guidelines is to provide specific recommendations for the surgical treatment of neck metastases in patients with papillary, follicular, and medullary thyroid carcinomas. Materials and methods: Recommendations were developed based on research of scientific articles (preferentially meta-analyses) and guidelines issued by international medical specialty societies. The American College of Physicians’ Guideline Grading System was used to determine the levels of evidence and grades of recommendations. The following questions were answered: A) Is elective neck dissection indicated in the treatment of papillary, follicular, and medullary thyroid carcinoma? B) When should central, lateral, and modified radical neck dissection be performed? C) Could molecular tests guide the extent of the neck dissection? Results/conclusion: Recommendation 1: Elective central neck dissection is not indicated in patients with cN0 well-differentiated thyroid carcinoma or in those with noninvasive T1 and T2 tumors but may be considered in T3-T4 tumors or in the presence of metastases in the lateral neck compartments. Recommendation 2: Elective central neck dissection is recommended in medullary thyroid carcinoma. Recommendation 3: Selective neck dissection of levels II–V should be indicated to treat neck metastases in papillary thyroid cancer, an approach that decreases the risk of recurrence and mortality. Recommendation 4: Compartmental neck dissection is indicated in the treatment of lymph node recurrence after elective or therapeutic neck dissection; “berry node picking” is not recommended. Recommendation 5: There are currently no recommendations regarding the use of molecular tests in guiding the extent of neck dissection in thyroid cancer. Objective follicular carcinomas methods preferentially metaanalyses meta analyses meta-analyses societies Physicians answered A B performed C Results/conclusion Resultsconclusion Results conclusion 1 cN welldifferentiated well differentiated T T3T4 TT T3 T4 T3-T compartments 2 3 IIV II V cancer mortality 4 berry picking 5 T3T

Abstract With the emergence of new variants of SARS-CoV-2, questions about transmissibility, vaccine efficacy, and impact on mortality are important to support decision-making in public health measures. Modifications related to transmissibility combined with the fact that much of the population has already been partially exposed to infection and/or vaccination, have stimulated recommendations to reduce the isolation period for COVID-19. However, these new guidelines have raised questions about their effectiveness in reducing contamination and minimizing impact in work environments. Therefore, a collaborative task force was developed to review the subject in a non-systematic manner, answering questions about SARS-CoV-2 variants, COVID-19 vaccines, isolation/quarantine periods, testing to end the isolation period, and the use of masks as mitigation procedures. Overall, COVID-19 vaccines are effective in preventing severe illness and death but are less effective in preventing infection in the case of the Omicron variant. Any strategy that is adopted to reduce the isolation period should take into consideration the epidemiological situation of the geographical region, individual clinical characteristics, and mask for source control. The use of tests for isolation withdrawal should be evaluated with caution, due to results depending on various conditions and may not be reliable.

RESUMO Objetivo: sugerir roteiro de assistência oncológica cirúrgica em meio à pandemia COVID-19 no Brasil. Método: foi realizada revisão narrativa da literatura e consenso tipo “brainstorming” após discussão com mais de 350 especialistas brasileiros e cirurgiões renomados de Portugal, França, Itália e Estados Unidos da América. Resultados: consenso sobre testagem para COVID-19: 1-Todos os pacientes a serem operados devem ser testados entre 24 e 48 antes do procedimento; 2-Equipe que tenha contato com doentes ou sintomáticos deve ser testada; 3-Tomografia de tórax foi sugerida para pesquisa de alterações pulmonares. Consenso sobre proteção das equipes de assistência: 1-Uso de máscaras cirúrgicas dentro de hospitais. Uso de máscaras N95 para todos os profissionais na sala cirúrgica; 2-Seleção dos casos para cirurgia minimamente invasiva e aspiração máxima do pneumoperitônio antes da retirada da peça cirúrgica; 2-Otimização das equipes, com número mínimo de profissionais, reduzindo a exposição ocupacional, o consumo de equipamento de proteção e a circulação de pessoas no ambiente hospitalar; 3 -Isolamento de pacientes contaminados. Consenso sobre priorizações: 1-Construção de prioridades de atendimento; 2- Discussão interdisciplinar sobre via minimamente invasiva ou convencional. Conclusão: a Sociedade Brasileira de Cirurgia Oncológica (SBCO) sugere roteiro de enfrentamento para o tratamento oncológico, lembrando que o represamento na assistência desses casos, pode configurar uma nova onda de sobrecarga em sistemas de saúde.

ABSTRACT Objective: to suggest a script for surgical oncology assistance in COVID-19 pandemic in Brazil. Method: a narrative review and a “brainstorming” consensus were carried out after discussion with more than 350 Brazilian specialists and renowned surgeons from Portugal, France, Italy and United States of America. Results: consensus on testing for COVID-19: 1- All patients to be operated should be tested between 24 and 48 before the procedure; 2- The team that has contact with sick or symptomatic patients should be tested; 3 - Chest tomography was suggested to investigate pulmonary changes. Consensus on protection of care teams: 1 - Use of surgical masks inside the hospitals. Use of N95 masks for all professionals in the operating room; 2 - Selection of cases for minimally invasive surgery and maximum pneumoperitoneal aspiration before removal of the surgical specimen; 2 - Optimization of the number of people in teams, with a minimum number of professionals, reducing their occupational exposure, the consumption of protective equipment and the circulation of people in the hospital environment; 3 - Isolation of contaminated patients. Priority consensus: 1- Construction of service priorities; 2 - Interdisciplinary discussion on minimally invasive or conventional pathways. Conclusion: the Brazilian Society of Surgical Oncology (BSSO) suggests a script for coping with oncological treatment, remembering that the impoundment in the assistance of these cases, can configure a new wave of overload in health systems.

A hemipelvectomia interna é um procedimento cirúrgico adequado no tratamento de certos tumores de cintura pélvica. É uma alternativa terapêutica capaz de preservar o membro inferior do paciente, ao contrário das amputações clássicas como a amputação interilioabdominal (AIIA) e desarticulação coxofemoral. De acordo com a classificação de Enneking, existem quatro tipos de hemipelvectomia interna, mas, se for necessário, é possível a associação de diferentes tipos de ressecção em um único procedimento. É fundamental que esta cirurgia seja indicada de forma correta para que interfira positivamente na morbimortalidade e qualidade de vida do paciente. Relatamos oito casos de hemipelvectomia interna em pacientes diagnosticados com tumores de cintura pélvica, bem como os tipos de tratamento neoadjuvantes e adjuvantes a que eles foram submetidos e o follow-up dos mesmos.

Internal hemipelvectomy is a surgical procedure adequate for treatment of certain tumors of the pelvic girdle. Being a lower limb-preserving approach, it is a therapeutic alternative to the classical interilioabdominal amputation and hip joint disarticulation. According to Enneking`s classification, there are four types of internal hemipelvectomies, although the association of different types of resection in the same procedure is feasible if necesary. This surgical approach should be correctly indicated to positively affect the patient`s morbidity, mortality and quality of life. We report eight cases of internal hemipelvectomy in patients diagnosed with tumors of the pelvic girdle. We also discuss the neoadjuvant and adjuvant treatments used, along with their follow-up.

OBJETIVO: Avaliar o efeito da luz laser em remanescentes hepáticos após hepatectomia a 90%. MÉTODOS: Aplicou-se luz laser com comprimento de onda de 660 nm e potência de 30 mw, por 30 segundos, na dose de 22,5 J/cm² em cada um deles, repetidos em cinco pontos do fígado remanescente, após realizada a hepatectomia a 90%. Os animais foram sacrificados para análise do fígado, contagem de hepatócitos em proliferação (Proliferating Cell Nuclear Antigen -PCNA), e coleta de sangue para dosagem serica das aminotransferases, após 24, 48 e 72 horas. RESULTADO: O índice de células marcadas teve significativo aumento no grupo de 72 horas irradiados com laser. CONCLUSÃO: A análise dos resultados demonstrou que o laser não causou lesões hepáticas adicionais à hepatectomia parcial e estimulou a atividade proliferativa hepatocelular.

PURPOSE: To evaluate the effect of laser beam on remanescent liver after partial hepatectomy 90%. METHODS: Wistar rats, (N= 42), were divided into six groups with seven specimens each. The partial hepatectomy (HP) was performed in all animals through exeresis of approximately 90% of the liver parenchyma. The animals from groups HP and Laser application, HPL24, HPL48 and HPL72 undertook laser irradiation carried out through application (dose of 22.5 J/cm²) in five different sites in the remanescent liver. The rats were then sacrificed 24, 48 and 72hours after HP procedure, for the liver regeneration analysis,using the Proliferating Cell Nuclear Antigen (PCNA),and for dosage of serum aminotransferases. RESULTS: Were demonstrated an increase of the serum levels of alanine aminotransferase for the group of 24 hours and a decrease for the group of 72 hours exposed to laser. The index of marked cells had a considerable more improvement for the group of 72 hours exposed in laser compared to other groups. CONCLUSION: Laser did not cause hepatic injuries additional to the partial hepatectomy and perhaps led to a benefit by stimulating the proliferative activity.

A isquemia tem papel fundamental em muitas situações clínicas perioperatórias . Apesar da revascularização sanguínea a um órgão isquêmico seja essencial para prevenir a irreversibilidade da lesão celular, a reperfusão pode agravar as lesões produzidas na fase isquêmica isolada. Assim, o dano celular induzido após reperfusão de um órgão isquêmico é denominado de lesão de isquemia-reperfusão (I/R). Aspectos básicos da lesão I/R, são revisados neste artigo.

Ischemia contributes to the pathogenesis of many perioperative clinical conditions. Although restoration of blood flow to an ischemic organ is essencial to prevent irreversible cellular injury, reperfusion may augment tissue injury in excess to that produced by ischemia alone. Thus, cellular damage after reperfusion of previously viable ischemic tissue is defined as ischemia-reperfusion injury. The basic aspects of I/R are reviewed.