Metoprolol for prevention of bucking at orotracheal extubation: a double-blind, placebo-controlled randomised trial.

BACKGROUND: Respiratory responses to extubation can cause serious postoperative complications. Beta-blockers, such as metoprolol, can interfere with the cough pathway. However, whether metoprolol can effectively control respiratory reflexes during extubation remains unclear. The objective of this study is to evaluate the efficacy of intravenous metoprolol in attenuating respiratory responses to tracheal extubation. METHODS: Randomized, double-blinded, placebo-controlled trial. SETTING: Tertiary referral center located in Brasília, Brazil. Recruitment: June 2021 to December 2021. SAMPLE: 222 patients of both sexes with an American Society of Anesthesiologists (ASA) physical status I-III aged 18-80 years. Patients were randomly assigned to receive intravenous metoprolol 5 mg IV or placebo at the end of surgery. The primary outcome was the proportion of patients who developed bucking secondary to endotracheal tube stimulation of the tracheal mucosa during extubation. Secondary outcomes included coughing, bronchospasm, laryngospasm, Mean Blood Pressure (MAP), and Heart Rate (HR) levels. RESULTS: Two hundred and seven participants were included in the final analysis: 102 in the metoprolol group and 105 in the placebo group. Patients who received metoprolol had a significantly lower risk of bucking (43.1% vs. 64.8%, Relative Risk [RR = 0.66], 95% Confidence Interval [95% CI 0.51-0.87], p = 0.003). In the metoprolol group, 6 (5.9%) patients had moderate/severe coughing compared with 33 (31.4%) in the placebo group (RR = 0.19; 95% CI 0.08-0.43, p < 0.001). CONCLUSION: Metoprolol reduced the risk of bucking at extubation in patients undergoing general anesthesia compared to placebo.

Stroke with postoperative visual loss as the first clinical manifestation of antiphospholipid antibody syndrome: Case report.

INTRODUCTION: Postoperative visual loss (POVL) is a rare and devastating complication. Its incidence in nonophthamologic surgeries varies from 0.056 % to 1.3 %. Autoimmune rheumatic diseases with a predisposition to thrombotic events, such as antiphospholipid antibody syndrome (APS), may constitute an important risk factor for this complication. PRESENTATION OF CASE: A 34-year-old female patient, who was a former smoker and had no other comorbidities. She underwent orthopedic surgery and presented with bilateral POVL associated with the loss of secondary muscle strength and intraoperative venous and arterial cerebral thrombosis. She was thoroughly investigated regarding the etiology of her condition, and high levels of antiphospholipid antibodies were found. DISCUSSION: APS is an autoimmune disease that predisposes the patient to thrombotic events. Among these, stroke is one of the main causes of POVL secondary to ischemia of the cortical territory, or also known as "cortical blindness." CONCLUSION: The rare incidence of POVL in nonophthalmological surgeries and the consequence and preservation in the literature on the subject, explain the limitations of its pathophysiology, and especially the development of guidelines focused on the prevention of patients with risk factors for this condition. Thus, this case report warns about the risks and anesthetic care that patients with risk factors should have when undergoing nonophthalmological surgeries.

Efficacy of a single dose of esmolol to prevent extubation-related complications during emergence from anesthesia: a randomized, double-blind, placebo-controlled trial

Abstract Background Few trials have examined the efficacy of esmolol to attenuate hemodynamic and respiratory responses during extubation. However, the most appropriate dose of esmolol and an optimal protocol for administering this beta-blocker are uncertain. Methods Ninety patients ASA physical status I, II, and III (aged 18-60 years) scheduled to procedures with general anesthesia and tracheal extubation were selected. Patients were randomized into esmolol and placebo group to evaluate the efficacy and safety of a single bolus dose of esmolol (2 mg.kg-1) on cardiorespiratory responses during the peri-extubation period. The primary outcome was the rate of tachycardia during extubation. Results The rate of tachycardia was significantly lower in esmolol-treated patients compared to placebo-treated patients (2.2% vs. 48.9%, relative risk (RR): 0.04, 95% confidence interval (95% CI) = 0.01 to 0.32, p= 0.002). The rate of hypertension was also significantly lower in the esmolol group (4.4% vs. 31.1%, RR: 0.14, 95% CI 0.03 to 0.6, p= 0.004). Esmolol-treated patients were associated with higher extubation quality compared to patients who received placebo (p< 0.001), with an approximately two-fold increase in the rate of patients without cough (91.1%) in the esmolol group compared to the placebo group (46.7%). The rate of bucking was approximately 5-fold lower in the esmolol group (8.9% vs. 44.5%, respectively, RR: 0.20 (95% CI, 0.1 to 0.5, p= 0.002, with an NNT of 2.8). Conclusion A single bolus dose of esmolol is an effective and safe therapeutic strategy to attenuate cardiorespiratory responses during the peri-extubation period.

Effects of lidocaine and esmolol on hemodynamic response to tracheal intubation: a randomized clinical trial.

INTRODUCTION AND OBJECTIVES: Although lidocaine is widely used to prevent cardiovascular changes resulting from laryngoscopy and orotracheal intubation, it is still unclear whether there are more efficacious drugs. This study aimed to compare the beta-blocker esmolol with lidocaine regarding the effects on hemodynamic response after orotracheal intubation. METHODS: The study has a prospective, randomized, double-blind, superiority design, and assessed 69 participants between 18 and 70 years of age, ASA I-II, scheduled for elective or emergency surgery under general anesthesia with orotracheal intubation. Participants were randomly allocated to receive 1.5 mg.kg-1 esmolol bolus followed by 0.1 mg.kg-1.min-1 esmolol infusion (n = 34) or 1.5 mg.kg-1 lidocaine bolus followed by 1.5 mg.kg-1.h-1 lidocaine infusion (n = 35). We recorded changes in heart rate, arterial blood pressure and incidence of adverse events. RESULTS: Post-intubation tachycardia episodes were significantly less frequent in the esmolol group (5.9% vs. 34.3%; Relative Risk (RR) 0.17; 95% Confidence Interval (95% CI) 0.04-0.71; Number Needed to Treat (NNT) 3.5; p = 0.015. After orotracheal intubation, mean heart rate was significantly lower in the esmolol group (74.5 vs. 84.5, p = 0.006). Similar results were observed in the subsequent 3 and 6 minutes (75.9 vs. 83.9, p = 0.023 and 74.6 vs. 83.0, p = 0.013, respectively). CONCLUSION: Esmolol was a safe and more effective intervention to reduce incidence of tachycardia and control heart rate immediately after tracheal intubation when compared to lidocaine.

Effect of ondansetron on spinal anesthesia-induced hypotension in non-obstetric surgeries: a randomised, double-blind and placebo-controlled trial.

BACKGROUND AND OBJECTIVES: Spinal anesthesia is an effective technique for many surgical procedures, but it is often associated with an increased risk of potentially deleterious hemodynamic disturbances. The benefits of prophylactic ondansetron for preventing spinal anesthesia-induced hypotension are still uncertain. Therefore, this study aimed to compare the effect of ondansetron and placebo before spinal block on the incidence of hypotension in patients having non-obstetric surgeries. METHODS: Randomized, double-blind, parallel-group, superiority trial with a 1:1 allocation ratio. A total of 144 patients scheduled for non-obstetric surgeries with an indication for spinal anesthesia were randomized. Patients received intravenous ondansetron (8mg) or placebo before standard spinal anesthesia. The primary outcome was the rate of hypotension in the first 30 minutes after spinal anesthesia. RESULTS: Hypotension occurred in 20 of 72 patients (27.8%) in the ondansetron group and in 36 of 72 patients (50%) in the placebo group (Odds Ratio-OR=0.38; 95% Confidence Interval-CI 0.19 to 0.77; p=0.007). Fewer patients in the ondansetron group required ephedrine compared to the placebo group (13.9% vs. 27.8%; OR=0.42; 95% CI 0.18 to 0.98; p=0.04). Exploratory analyses revealed that ondansetron may be more effective than placebo in patients aged 60 years or older (OR=0.12; 95% CI 0.03 to 0.48; p=0.03). No difference in heart rate variations was observed. CONCLUSION: Our findings suggest that ondansetron can be a viable and effective strategy to reduce both the incidence of spinal anesthesia-induced hypotension and vasopressors usage in non-obstetric surgeries.

Prevalence of Inadvertent Perioperative Hypothermia and Associated Factors: A Cross-Sectional Study.

Inadvertent perioperative hypothermia, defined as a body temperature <36.0°C, is a common outcome of anesthesia that can cause serious consequences to patients. The aim of this study is to determine the prevalence of inadvertent hypothermia among surgical procedures from two referral centers in Brazil and to identify sociodemographic, clinical, or surgery-related predictors of hypothermia. This is a cross-sectional study, conducted at two public hospitals in Brasília, Brazil. After the exclusion of 109 patients, 312 subjects (American Society of Anesthesiologists [ASA] physical status I-III) were enrolled from July 2016 through July 2018. The main outcome measures were the prevalence of hypothermia and its predictors. The mean age of the 312 patients was 43.2 (18.2) years (range 18-85 years), and 186 (59.6%) were female. The prevalence of inadvertent hypothermia was 56.7%. Predictors of hypothermia were perioperative chills (p = 0.026), patient's body temperature on arrival in the operating room (p < 0.001), diabetes (p < 0.001), ASA status III (p < 0.001), systolic blood pressure (p < 0.001), general anesthesia (p < 0.001), medical specialty (p < 0.001), fentanyl-based anesthesia (p = 0.002), and surgery time (p < 0.001). The multivariable model prediction model for hypothermia showed fairly good discrimination (area under the receiver operating characteristic: 79.0%, 95% confidence interval 68.0 to 80.1). Approximately 6 in 10 patients undergoing surgery developed inadvertent perioperative hypothermia. The risk of hypothermia is influenced by a myriad of factors that can be used in simple and low-cost predictive models with adequate discriminatory power.

Retalho triangular para reconstrução da papila mamária / Triangular flap for nipple reconstruction

Introdução: Apesar das muitas técnicas publicadas, há dificuldades para se atingir de forma satisfatória uma placa areolopapilar (PAP) com resultado duradouro a longo prazo. O objetivo é demonstrar resultados pela técnica do retalho cutâneo triangular nas reconstruções de papila e comparar com as técnicas já descritas na literatura. Métodos: Estudo prospectivo da reconstrução papilar pela técnica do retalho cutâneo triangular de 1 janeiro de 2015 a 1 de março de 2016. Técnica cirúrgica: Marcação em triângulo equilátero; decorticação dos três vértices do triângulo que são unidos em forma de envelope, com a área central aderida à neomama; Enxertia de pele total para confecção da neoareolar. Os pacientes foram avaliados e classificados como totalmente satisfatórios, satisfatórios, parcialmente satisfatórios ou insatisfatórios. Tipo de reconstrução mamária primária, realização de quimio ou radioterapia pós-operatórias ou neoadjuvantes, comorbidades, complicações pós-operatórias foram avaliados. Avaliação estatística por testes exato de Fisher, Qui quadrado e análise post hoc (p < 0,05 significativo). Resultados: Trinta e uma pacientes submetidas à reconstrução mamilar pela técnica do retalho cutâneo triangular, sendo 17 unilaterais e 14 bilaterais, totalizando 45 reconstruções. Média de idade de 50 anos, IMC médio de 24,95 kg/m2 e acompanhamento médio de 14 meses. Avaliados: dados demográficos, complicações dos pacientes versus o tipo de reconstrução primária mamária e realização de quimio e/ou radioterapia, tipos de reconstrução mamária realizados, avaliação das papilas versus reconstrução, avaliação da técnica de reconstrução papilar versus satisfação dos avaliadores e complicações papilares versus técnica de confecção. Conclusão: A técnica original do retalho cutâneo triangular apresenta as vantagens de fácil execução e segurança na reconstrução das placas areolopapilares.

Introduction: Despite the many published techniques, there are difficulties in satisfactorily achieving a nipple areola complex (NAC) with long-lasting results. The objective is to demonstrate results using the triangular cutaneous flap technique in nipple reconstructions and compare it with previously published techniques. Methods: A prospective study of nipple reconstruction using the triangular cutaneous flap technique from January 1, 2015, to March 1, 2016. Surgical technique: Marking of an equilateral triangle; decortication of the three points of the triangle that are united in the form of an envelope, with the central area adhered to the neo-breast; total skin grafting for construction of the areola. The patients were evaluated and results classified as fully satisfactory, satisfactory, partially satisfactory, or unsatisfactory. Primary type of breast reconstruction, postoperative or neoadjuvant chemo- or radiotherapy complications, comorbidities, and postoperative complications were evaluated. Statistical evaluation was performed using Fisher's exact test, chi-square test, and post hoc analysis (significance p < 0.05). Results: Thirty-one patients underwent nipple reconstruction using the triangular cutaneous flap technique, 17 unilateral and 14 bilateral, totaling 45 reconstructions. Mean age was 50 years, mean body mass index was 24.95 kg/m2, and mean follow-up period was 14 months. Rated: demographic data, complications of patients versus the type of primary breast reconstruction and completion of chemo- and/or radiotherapy, types of breast reconstruction performed, evaluation of the nipples versus reconstruction, evaluation of the nipple reconstruction technique versus satisfaction of evaluators, and nipple complications versus reconstruction technique. Conclusion: The original triangular cutaneous flap technique presents the advantages of easy execution and safety in reconstruction of the NAC.

Estudo comparativo entre reconstrução imediata com prótese versus abordagem expansor-prótese / Comparative study of immediate implant and expander-implant reconstruction

Introdução: Ao longo dos últimos anos os benefícios das reconstruções imediatas se tornaram cada vez mais documentados na literatura e, hoje, o predomínio é pelas reconstruções imediatas. Nos últimos anos, o número de reconstruções com expansores e próteses tem aumentado. Métodos: Estudo retrospectivo entre 2013 e 2014. Foram incluídas as pacientes submetidas à mastectomia, seguida de reconstrução de mama, e assim separadas em dois grupos: 1 - submetida a reconstrução direta com prótese e 2 - expansor. Diversos dados foram avaliados. Resultados: Foram realizadas 138 reconstruções assim divididos: 57 com prótese e 81 com expansor-prótese. As complicações pós-operatórias não mostraram diferença entre os grupos. Radioterapia não teve influência nas complicações. Pacientes que fizeram reconstrução com prótese realizaram menos cirurgias (1,78 vs 2,54) e menos retornos pós-operatórios (8 vs 11,75). Conclusão: As reconstruções imediatas com prótese ou expansor apresentam baixas e semelhantes taxas de complicações pós-operatórias. Pacientes submetidas às reconstruções com prótese tiveram menor taxa de retorno e número de cirurgias para finalizar a reconstrução.

Introduction: The benefits of immediate reconstruction have been increasingly documented in the literature over the past few years. Today, with some exceptions, immediate reconstruction is the preferred surgical choice for breast cancer patients. In the recent years, the number of reconstructions using expanders and implants has increased. Methods: This retrospective study conducted between 2013 and 2014 included patients undergoing mastectomy followed by breast reconstruction, who were divided into direct implant reconstruction and expander treatment groups. Several variables were evaluated. Results: A total of 138 reconstructions (57 implants and 81 expander-implant) were performed. There were no intergroup differences in postoperative complications. Radiotherapy did not influence complications. Implant reconstruction patients underwent fewer surgeries (1.78 vs 2.54) and had fewer postoperative returns (8 vs 11.75). Conclusion: Immediate implant and expander-implant reconstruction approaches present low and similar postoperative complication rates. Patients undergoing implant reconstruction had a lower return rate and underwent fewer surgeries than those undergoing expander-implant reconstruction.

Risk factors for postoperative hypothermia in the post-anesthetic care unit: a prospective prognostic pilot study / Fatores de risco para hipotermia pós-operatória em sala de recuperação pós-anestésica: estudo piloto prospectivo de prognóstico

Abstract Background: Hypothermia occurs in up to 20% of perioperative patients. Systematic postoperative temperature monitoring is not a standard of care in Brazil and there are few publications about temperature recovery in the postoperative care unit. Design and setting: Multicenter, observational, cross-sectional study, at Hospital de Base do Distrito Federal and Hospital Materno Infantil de Brasília. Methods: At admission and discharge from postoperative care unit, patients undergoing elective or urgent surgical procedures were evaluated according to tympanic temperature, vital signs, perioperative adverse events, and length of stay in postoperative care unit and length of hospital stay. Results: 78 patients, from 18 to 85 years old, were assessed. The incidence of temperatures <36 ºC at postoperative care unit admission was 69.2%. Spinal anesthesia (p < 0.0001), cesarean section (p = 0.03), and patients who received morphine (p = 0.005) and sufentanil (p = 0.003) had significantly lower temperatures through time. During postoperative care unit stay, the elderly presented a greater tendency to hypothermia and lower recovery ability from this condition when compared to young patients (p < 0.001). Combined anesthesia was also associated to higher rates of hypothermia, followed by regional and general anesthesia alone (p < 0.001). Conclusion: In conclusion, this pilot study showed that perioperative hypothermia is still a prevalent problem in our anesthetic practice. More than half of the analyzed patients presented hypothermia through postoperative care unit admission. We have demonstrated the feasibility of a large, multicenter, cross-sectional study of postoperative hypothermia in the post-anesthetic care unit.

Resumo Justificativa: A hipotermia ocorre em até 20% dos pacientes no perioperatório. A monitoração sistemática pós-operatória da temperatura não é um padrão de atendimento no Brasil e há poucas publicações sobre recuperação da temperatura na sala de recuperação pós-anestésica. Desenho e cenário: Estudo multicêntrico, observacional, transversal, conduzido no Hospital de Base do Distrito Federal e no Hospital Materno Infantil de Brasília. Métodos: Na admissão e alta da sala de recuperação pós-anestesia, os pacientes submetidos a procedimentos cirúrgicos eletivos ou de urgência foram avaliados de acordo com a temperatura timpânica, sinais vitais, eventos adversos perioperatórios, tempo de permanência na sala de recuperação pós-anestesia e tempo de internação hospitalar. Resultados: Setenta e oito pacientes com idades entre 18 e 85 anos foram avaliados. A incidência de temperatura <36 ºC na admissão à sala de recuperação pós-anestesia foi de 69,2%. Raquianestesia (p < 0,0001), cesariana (p = 0,03) e os pacientes que receberam morfina (p = 0,005) e sufentanil (p = 0,003) apresentaram temperaturas significativamente menores ao longo do tempo. Durante a permanência na sala de recuperação pós-anestesia, os pacientes idosos apresentaram uma tendência maior a apresentarem hipotermia e menor capacidade de recuperação dessa condição, em comparação com os pacientes jovens (p < 0,001). Anestesia combinada também foi associada a taxas mais altas de hipotermia, seguida pelas anestesias regional e geral isoladas (p < 0,001). Conclusão: Em conclusão, este estudo piloto mostrou que a hipotermia perioperatória ainda é um problema prevalente em nossa prática anestésica. Mais de metade dos pacientes analisados apresentaram hipotermia durante a admissão à sala de recuperação pós-anestésica. Demonstramos a viabilidade de um grande estudo multicêntrico, transversal, de hipotermia pós-operatória em sala de recuperação pós-anestésica.

Qualidade de vida e resultado estético após mastectomia e reconstrução mamária / Quality of life and aesthetic results after mastectomy and mammary reconstruction

Introdução: Em decorrência do aumento na incidência de câncer de mama, a procura pela reconstrução mamária vem crescendo, juntamente com a preocupação em relação à satisfação e à qualidade de vida das pacientes. Mastectomia pode ser vivenciada de modo traumático, sendo considerada mutilação, afetando autoestima e estabilidade emocional. O questionário BREAST-Q® foi validado internacionalmente e formulado para avaliação pré e pós-operatória da qualidade de vida relacionada à reconstrução mamária. O objetivo do estudo é avaliar a qualidade de vida e satisfação com o resultado estético das pacientes submetidas à reconstrução mamária com implantes, comparando o período anterior com o período posterior à reconstrução mamária. Métodos: Realizado estudo observacional longitudinal retrospectivo por meio da revisão de prontuários de pacientes submetidas à reconstrução mamária com uso de implantes de silicone ou de expansor de tecido no período de janeiro de 2014 a dezembro de 2016, associado a estudo transversal por meio da aplicação do questionário Breast-Q® e avaliação do resultado estético após análise fotográfica pré e pós-operatória. Resultados: Foram selecionadas 74 pacientes que foram submetidas à reconstrução mamária com implantes (79,7% com prótese de silicone e 20,3% com expansor); 95,94% das reconstruções foram imediatas e não houve predomínio quanto à lateralidade. Obtivemos significância estatística tanto no domínio satisfação com a mama quanto no domínio bem-estar físico. A maioria dos casos foram considerados satisfatórios pelo avaliador externo. Conclusão: A qualidade de vida das pacientes no período posterior à reconstrução mamária com implantes mamários é superior em relação ao período anterior ao procedimento cirúrgico.

Introduction: Due to the increased incidence of breast cancer, the demand for breast reconstruction has been increasing, along with concerns regarding the satisfaction and quality of life of the patients. Mastectomy can be a traumatic experience, especially when it is perceived as a mutilation, which can impact self-esteem and emotional stability. The BREAST-Q® questionnaire was internationally validated and formulated for the pre- and postoperative assessment of quality of life related to breast reconstruction. This study aimed to evaluate quality of life and aesthetic result satisfaction in patients who underwent breast reconstruction with implants by comparing the period after breast reconstruction with the period before. Method: A retrospective longitudinal observational study was carried out by reviewing the charts of patients who underwent breast reconstruction using silicone or tissue expander implants from January 2014 to December 2016, in association with a cross-sectional study of the Breast-Q® questionnaire and an evaluation of aesthetic results based on photographic analysis before and after surgery. Results: We selected 74 patients who underwent breast reconstruction with implants (79.7% with silicone prostheses and 20.3% with expanders); 95.94% of the reconstructions were immediate, and no particular laterality predominated. We obtained statistical significance in the domains of both breast satisfaction and physical well-being. Most cases were considered satisfactory by the external evaluator. Conclusion: The patients' quality of life in the period after breast reconstruction with breast implants was superior to that in the period prior to the procedure.

[Risk factors for postoperative hypothermia in the post-anesthetic care unit: a prospective prognostic pilot study]. / Fatores de risco para hipotermia pós­operatória em sala de recuperação pós­anestésica: estudo piloto prospectivo de prognóstico.

BACKGROUND: Hypothermia occurs in up to 20% of perioperative patients. Systematic postoperative temperature monitoring is not a standard of care in Brazil and there are few publications about temperature recovery in the postoperative care unit. DESIGN AND SETTING: Multicenter, observational, cross-sectional study, at Hospital de Base do Distrito Federal and Hospital Materno Infantil de Brasília. METHODS: At admission and discharge from postoperative care unit, patients undergoing elective or urgent surgical procedures were evaluated according to tympanic temperature, vital signs, perioperative adverse events, and length of stay in postoperative care unit and length of hospital stay. RESULTS: 78 patients, from 18 to 85 years old, were assessed. The incidence of temperatures <36°C at postoperative care unit admission was 69.2%. Spinal anesthesia (p<0.0001), cesarean section (p=0.03), and patients who received morphine (p=0.005) and sufentanil (p=0.003) had significantly lower temperatures through time. During postoperative care unit stay, the elderly presented a greater tendency to hypothermia and lower recovery ability from this condition when compared to young patients (p<0.001). Combined anesthesia was also associated to higher rates of hypothermia, followed by regional and general anesthesia alone (p<0.001). CONCLUSION: In conclusion, this pilot study showed that perioperative hypothermia is still a prevalent problem in our anesthetic practice. More than half of the analyzed patients presented hypothermia through postoperative care unit admission. We have demonstrated the feasibility of a large, multicenter, cross-sectional study of postoperative hypothermia in the post-anesthetic care unit.

Reconstrução mamária em mulheres jovens e suas peculiaridades / Breast reconstruction in young women and their peculiarities

Introdução: O objetivo do trabalho foi avaliar as principais características e métodos utilizados na reconstrução mamária de mulheres jovens, considerando suas peculiaridades. Métodos: Foi realizada uma revisão retrospectiva dos prontuários das pacientes submetidas à mastectomia seguida de reconstrução mamária no período de janeiro de 2008 a dezembro de 2015, sendo selecionados aqueles cuja reconstrução foi realizada em mulheres de até 40 anos de idade. Resultados: 43 pacientes foram selecionadas. A média de idade foi de 33,86 anos. Grande parte possuía alguma comorbidade, sendo as mais comuns o sobrepeso e o transtorno ansioso/depressivo. Quatorze pacientes tinham história familiar da doença. A maioria obteve o diagnóstico de carcinoma ductal invasor. Tratamentos oncológicos complementares foram realizados em grande parte dos casos. Todas as pacientes foram submetidas à mastectomia total na mama portadora da neoplasia, sendo que em 16 houve a opção pela mastectomia redutora de risco contralateral. Do total de 43 reconstruções, 36 foram imediatas e 7 tardias; sendo 17 reconstruídos com implantes mamários, 13 com expansores teciduais, 4 com TRAM e 9 com GD. Houve 15 complicações, sendo as mais graves um caso de infecção com perda da reconstrução e um caso de necrose de aréola. Conclusões: Mulheres jovens submetidas à reconstrução mamária representam um subgrupo populacional com características próprias. Os padrões tumorais, pessoais e sociais diferem e, com base nesta imensa lista de variáveis, as possibilidades de tratamento são diversas. Em nossa casuística, o emprego de implantes mamários e expansores teciduais foi realizado com maior frequência neste subgrupo de pacientes.

Introduction: To evaluate the main features and methods used in breast reconstruction in young women considering their unique characteristics. Methods: A retrospective records review of patients who underwent mastectomy followed by breast reconstruction between January 2008 and December 2015 was conducted, selecting those reconstructions that were performed in women younger than 40 years. Results: Forty-three patients were selected. The average age was 33.86 years. Many had some comorbidities, the most common being overweight and anxiety/ depressive disorder. Fourteen patients had a family history of the disease. Most were diagnosed with invasive ductal carcinoma. Additional cancer treatments were administered in most cases. All patients underwent a full mastectomy in the breast with cancer, and in 16, there was the option of contralateral risk-reducing mastectomy. Of the 43 reconstructions, 36 were immediate and 7 were delayed, and 17 involved use of implants, 13 involved use of tissue expanders, 4 involved the TRAM, and 9 involved the GD. We observed 15 complications; the most severe were infection with reconstruction loss in one patient and areola necrosis in another. Conclusions: Young women undergoing breast reconstruction represent a population subgroup with its own characteristics. The tumors and personal and social patterns differ, and based on this long list of variables, treatment options are diverse. In our series, breast implants and tissue expanders were often most used.

Dissection of the wired endotracheal tube's lumen during general anesthesia: a case report / Dissecção de lúmen de tubo endotraqueal aramado durante anestesia geral: relato de caso

Abstract Objective The aim of this study is to report a case of a clinically significant obstruction during mechanical ventilation caused by the dissection of the wired endotracheal tube's lumen during general anesthesia in a pediatric patient. Case report A 12-years old patient undergoing general anesthesia for open appendectomy was intubated with a wired endotracheal tube and difficult removal of the guide. After starting the mechanical ventilation, there was increased expiratory fraction of CO2 and need for increased inspiratory pressure. Chance of complications with higher incidences were raised and treated unsuccessfully. Finally, during patient reintubation, the dissection of the endotracheal tube lumen was observed, and ventilation was restored to normal. Conclusion Anesthesia involves numerous possible complications. Suspicion and constant vigilance are essential for early diagnosis and treatment of any threat to the individual integrity. This case is relevant for emphasizing a possible very rare complication related to airway, which can quickly cause hypoxia and irreversible damage. Thus, this case contributes to the detection of this complication more frequently.

Resumo Objetivo Relatar um caso de obstrução à ventilação mecânica clinicamente significativa causada por dissecção do lúmen do tubo endotraqueal aramado durante anestesia geral em um paciente pediátrico. Relato Paciente de 12 anos submetido à anestesia geral para apendicectomia aberta foi intubado com tubo endotraqueal aramado e retirada de guia do tubo difícil. Após iniciar a ventilação mecânica houve aumento da fração expiratória de CO2 e necessidade de aumento da pressão inspiratória. Hipóteses de complicações com maiores incidências foram aventadas e tratadas sem sucesso. Finalmente, ao reintubar o doente, foi verificada dissecção do lúmen do tubo endotraqueal e a ventilação foi restaurada à normalidade. Conclusão O ato anestésico envolve inúmeras possíveis complicações. A suspeição e a vigilância constantes são essenciais para diagnosticar e tratar precocemente qualquer ameaça à integridade do indivíduo. O presente caso é relevante por enfatizar uma possível complicação muito incomum relacionada às vias aéreas capaz de causar hipóxia e danos irreversíveis rapidamente. Dessa forma, o caso contribui para que essa intercorrência seja detectada com maior frequência.

Simetrização com implantes submusculares na busca de resultados duradouros em reconstruções mamárias / Symmetrization using submuscular implants to achieve lasting results in breast reconstruction

Introdução: Nas reconstruções de mama com implante é incomum a ptose no decorrer do tempo, fato não observado nas mamoplastias de simetrização, principalmente sem implantes, ocasionando precocemente a recidiva da assimetria mamária. O objetivo desse trabalho foi demonstrar a mamoplastia de simetrização contralateral com uso de implantes submusculares e os resultados alcançados. Métodos: No período de 2 anos foram estudados, retrospectivamente, 18 casos de mamoplastia de simetrização com implante submuscular. Resultados: A comorbidade mais encontrada foi a obesidade, com p = 0,007. As pacientes obesas tiveram maior volume de tecido mamário ressecado, com p = 0,0013. O acompanhamento médio foi de 13 meses. A taxa de reoperação foi de 5,5% (1 caso) devido à pseudoptose. Não houve infecção dos implantes. As complicações encontradas foram: necrose parcial do complexo areolopapilar em 1 caso, deiscência superficial de ferida em 1 caso, seroma em 3 casos e dor moderada em 3 casos. Conclusão: A mamoplastia de simetrização contralateral com uso de implantes submusculares, associada ao adequado esvaziamento do tecido mamário, proporcionou resultados duradouros com baixo índice de complicações, minimizando as sequelas decorrentes da mastectomia.

Introduction: In breast reconstruction with implants, ptosis is uncommon over time, in contrast to symmetrization mammoplasty without implants, which causes premature recurrence of breast asymmetry. The objective of this study was to describe the procedure and results of contralateral symmetrization mammoplasty with the use of submuscular implants. Methods: A total of 18 cases of symmetrization mammoplasty with submuscular implants performed over a 2-year period were retrospectively studied. Results: The most common comorbidity was obesity (p = 0.007). Obese patients had a higher volume of resected breast tissue (p = 0.0013). The mean follow-up was 13 months. The reoperation rate was 5.5% (1 case) for pseudoptosis. There were no implant infections. Complications included partial necrosis of the nipple-areola complex in 1 case, superficial wound dehiscence in 1 case, seroma in 3 cases, and moderate pain in 3 cases. Conclusion: Contralateral symmetrization mammoplasty with submuscular implants, associated with adequate emptying of breast tissue, provided long-lasting results with a low rate of complications, minimizing the sequelae of mastectomy.

Anesthetic management of Cytoreductive Surgery and Hyperthermic Intraperitoneal Chemotherapy (CRS/HIPEC): The importance of hydro-electrolytic and acid-basic control.

JUSTIFICATION AND OBJECTIVES: Patients affected by gynecological or gastrointestinal tract neoplasms that evolve to peritoneal carcinomatosis experience a significant drop in their quality of life, high morbidity and short survival times with currently available chemotherapeutic schemes. The surgical treatment based on cytoreduction and the employment of hyperthermic intraperitoneal chemotherapy in the intra-operative period is a true challenge to anesthesiologist. CASE REPORT: A 67 years old patient diagnosed with mucinous adenocarcinoma of the Appendix associated with mucinous carcinomatosis, was submitted to cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC), under general anesthesia and epidural block. Volume replacement was performed with crystalloids, colloids and blood products to support an important ascites volume drained during the procedure. The target was the strict control of hydro-electrolytic and acid-basic equilibrium. The patient was referred to the ICU and evolved to a hospital discharge on the third postoperative day. CONCLUSION: The neoplastic compromise of the peritoneum has long been considered to be a pre-terminal state. The advent of CRS/HIPEC represent an alternative promising with numerous challenges to the anesthesiologist regarding the metabolic and hemodynamic adjustment, which once again demand training and ongoing study from the perioperative team.

Effects of lidocaine and magnesium sulfate in attenuating hemodynamic response to tracheal intubation: single-center, prospective, double-blind, randomized study / Os efeitos da lidocaína e do sulfato de magnésio na atenuação da resposta hemodinâmica à intubação orotraqueal: estudo unicêntrico, prospectivo, duplamente encoberto e aleatorizado

Abstract Background and objectives: Hemodynamic response to airway stimuli is a common phenomenon and its management is important to reduce the systemic repercussions. The objective of this study is to compare the efficacy of intravenous magnesium sulfate versus lidocaine on this reflex hemodynamics after laryngoscopy and tracheal intubation. Methods: This single-center, prospective, double-blind, randomized study evaluated 56 patients ASA 1 or 2, aged 18-65 years, scheduled for elective surgeries under general anesthesia with intubation. The patients were allocated into two groups: Group F received 30 mg·kg-1 of magnesium sulphate and Group L, 2 mg·kg-1 of lidocaine, continuous infusion, immediately before the anesthetic induction. Blood pressure (BP), heart rate (HR), and bispectral index (BIS) were measured in both groups at six different times related to administration of the study drugs. Results: In both groups there was an increase in HR and BP after laryngoscopy and intubation, compared to baseline. Group M showed statistically significant increase in the values of systolic and diastolic blood pressure after intubation, which was clinically unimportant. There was no difference in the BIS values between groups. Among patients receiving magnesium sulfate, three (12%) had high blood pressure versus only one among those receiving lidocaine (4%), with no statistical difference. Conclusion: Magnesium sulfate and lidocaine have good efficacy and safety for hemodynamic management in laryngoscopy and intubation.

Resumo Justificativa e objetivos: A resposta hemodinâmica aos estímulos das vias aéreas é um fenômeno comum e seu controle é importante para diminuir as repercussões sistêmicas. O objetivo deste trabalho é comparar os efeitos da administração endovenosa de sulfato de magnésio versus lidocaína na hemodinâmica desse reflexo após a laringoscopia e intubação orotraqueal. Métodos: Este estudo duplamente encoberto, aleatorizado, unicêntrico e prospectivo avaliou 56 pacientes, ASA 1 ou 2, entre 18 e 65 anos, escalados para cirurgias eletivas sob anestesia geral com intubação orotraqueal. Foram alocados em dois grupos, o M recebeu 30 mg·kg-1 de sulfato de magnésio e o L, 2 mg·kg-1 de lidocaína, em infusão contínua, imediatamente antes da indução anestésica. Os valores de pressão arterial (PA), frequência cardíaca (FC) e índice biespectral (BIS) foram aferidos nos dois grupos em seis momentos relacionados com a administração dos fármacos do estudo. Resultados: Em ambos os grupos houve aumento na FC e PA após a laringoscopia e intubação, em relação aos valores basais. No Grupo M observou-se elevação estatisticamente significativa, mas clinicamente pouco importante, nos valores das pressões arteriais sistólica e diastólica após a intubação. Não houve diferença nos valores de BIS entre os grupos. Dos pacientes que receberam o sulfato de magnésio, 3 (12%) apresentaram episódio de hipertensão, ao passo que apenas um dos que receberam lidocaína (4%) apresentou esse sinal, sem diferença estatística. Conclusão: Sulfato de magnésio e a lidocaína apresentam boa eficácia e segurança no controle hemodinâmico à laringoscopia e intubação.

[Dissection of the wired endotracheal tube's lumen during general anesthesia: a case report]. / Dissecção de lúmen de tubo endotraqueal aramado durante anestesia geral: relato de caso.

OBJECTIVE: The aim of this study is to report a case of a clinically significant obstruction during mechanical ventilation caused by the dissection of the wired endotracheal tube's lumen during general anesthesia in a pediatric patient. CASE REPORT: A12-years old patient undergoing general anesthesia for open appendectomy was intubated with a wired endotracheal tube and difficult removal of the guide. After starting the mechanical ventilation, there was increased expiratory fraction of CO2 and need for increased inspiratory pressure. Chance of complications with higher incidences were raised and treated unsuccessfully. Finally, during patient reintubation, the dissection of the endotracheal tube lumen was observed, and ventilation was restored to normal. CONCLUSION: Anesthesia involves numerous possible complications. Suspicion and constant vigilance are essential for early diagnosis and treatment of any threat to the individual integrity. This case is relevant for emphasizing a possible very rare complication related to airway, which can quickly cause hypoxia and irreversible damage. Thus, this case contributes to the detection of this complication more frequently.