Three-dimensional Simulation on Patient-reported Outcomes Following Oncoplastic and Reconstructive Surgery of the Breast: A Randomized Trial.

Background: Three-dimensional (3D) imaging using computer simulations is an evolving technology. There is a lack of strong data on the use of this technology for oncoplastic (OP) and reconstructive surgery. Methods: A prospective, randomized, single-center trial including breast cancer patients undergoing OP or mastectomy with immediate breast reconstruction with implant (IBR) enrolled from November 2019 to October 2021 at the Hospital Nossa Senhora das Graças, Breast Unit in Curitiba, Brazil. Both patients undergoing OP and those in the IBR group were randomized to undergo 3D imaging and simulation of postoperative results (intervention group) or 3D imaging without simulation (control group). All patients were invited to complete a patient-reported outcome (BREAST-Q) expectations module and breast reconstruction or reduction/mastopexy module before and 6 months after surgery. Results: A total of 96 patients were enrolled. Sixty-nine patients (45 OP and 24 IBR) completed the pre- and postoperative questionnaires and were randomized for the simulation. Women in the OP group had higher expectations for breast appearance when clothed than those in the IBR implant group (93.4 ± 16.3 versus 82.9 ± 26.5; P = 0.03). The intervention group was more satisfied with information than the control group (P = 0.021). Both patients who underwent OP and IBR believed that the 3D simulation helped them understand the surgical process (86.6% and 75%, respectively). Conclusions: Preoperative 3D simulation significantly improved patient's satisfaction with information and did not decrease postoperative satisfaction with the outcomes. The incorporation of preoperative 3D simulation may be a valuable tool in breast reconstruction.

Oncological safety of nipple-sparing mastectomy after neoadjuvant chemotherapy: a systematic review.

BACKGROUND: the use of nipple-sparing mastectomy (NSM) in local advanced breast cancer after neoadjuvant chemotherapy (NQT) is increasing, despite few studies on the subject. The aim of this systematic review was to determine the safety of NSM after neoadjuvant chemotherapy. METHODS: for this systematic review we searched MEDLINE; Cochrane; Scientific Electronic Library Online (SciELO); Embase and Scopus. A literature search of all original studies including randomized controlled trials, cohort studies and case-control studies comparing women undergoing NSM after neoadjuvant chemotherapy for breast cancer was undertaken. Outcomes were locoregional recurrence (LRR), nipple recurrence and distant recurrence (DR). Data analysis was undertaken to explore the safety of NSM after NQT. The quality of the evidence was assessed with the Cochrane risk of bias tool. This study is registered on PROSPERO, number CRD42021276778. FINDINGS: a total of 437 articles were identified. Four articles were included with 1466 patients all of which had a high to serious risk of overall bias. Local recurrence in the NSM after the NQT group ranged from zero to 9.8%. Nippleareolar complex (NAC) recurrence ranged from zero to 2.1%. The distant recurrence rate ranged from 6.5% to 16%. Due to the lack of pattern among the control groups, it was not possible to perform a meta-analysis. INTERPRETATION: this review provides information for decision making in performing NSM after NQT. Despite the low rates of local recurrence and patients should be counseled about limited oncological information.

Prospective study: Impact of breast magnetic resonance imaging on oncoplastic surgery and on indications of mastectomy in patients who were previously candidates to breast conserving surgery.

Background: Routine use of magnetic resonance imaging (MRI) in the staging of patients with early breast cancer is still controversial. Oncoplastic surgery (OP) allows for wider resections without compromising the aesthetic results. This study aimed to assess the impact of preoperative MRI on surgical planning and on indications of mastectomy. Methods: Prospective study including T1-T2 breast cancer patients treated between January 2019 and December 2020 in the Breast Unit of the Hospital Nossa Senhora das Graças in Curitiba, Brazil. All patients had indication for breast conserving surgery (BCS) with OP and did a breast MRI after conventional imaging. Results: 131 patients were selected. Indication for BCS was based on clinical examination and conventional imaging (mammography and ultrasound) findings. After undergoing breast MRI, 110 patients (84.0%) underwent BCS with OP and 21 (16.0%) had their surgical procedure changed to mastectomy. Breast MRI revealed additional findings in 52 of 131 patients (38%). Of these additional findings, 47 (90.4%) were confirmed as invasive carcinoma. Of the 21 patients who underwent mastectomies, the mean tumor size was 2.9 cm (± 1,7cm), with all having additional findings on breast MRI (100% of the mastectomies group vs 28.2% of the OP, p<0.01). Of the 110 patients submitted to OP, the mean tumor size was 1,6cm (± 0,8cm), with only 6 (5.4%) presenting positive margins at the final pathology assessment. Conclusion: Preoperative breast MRI has an impact on the OP scenario, bringing additional information that may help surgical planning. It allowed selecting the group with additional tumor foci or greater extension to convert to mastectomy, with a consequent low reoperation rate of 5.4% in the BCS group. This is the first study to assess the impact of breast MRI in the preoperative planning of patients undergoing OP for the treatment of breast cancer.

Oncological safety of nipple-sparing mastectomy after neoadjuvant chemotherapy: a systematic review / Segurança oncológica da mastectomia conservadora do mamilo após quimioterapia neoadjuvante: revisão sistemática

ABSTRACT Background: the use of nipple-sparing mastectomy (NSM) in local advanced breast cancer after neoadjuvant chemotherapy (NQT) is increasing, despite few studies on the subject. The aim of this systematic review was to determine the safety of NSM after neoadjuvant chemotherapy. Methods: for this systematic review we searched MEDLINE; Cochrane; Scientific Electronic Library Online (SciELO); Embase and Scopus. A literature search of all original studies including randomized controlled trials, cohort studies and case-control studies comparing women undergoing NSM after neoadjuvant chemotherapy for breast cancer was undertaken. Outcomes were locoregional recurrence (LRR), nipple recurrence and distant recurrence (DR). Data analysis was undertaken to explore the safety of NSM after NQT. The quality of the evidence was assessed with the Cochrane risk of bias tool. This study is registered on PROSPERO, number CRD42021276778. Findings: a total of 437 articles were identified. Four articles were included with 1466 patients all of which had a high to serious risk of overall bias. Local recurrence in the NSM after the NQT group ranged from zero to 9.8%. Nippleareolar complex (NAC) recurrence ranged from zero to 2.1%. The distant recurrence rate ranged from 6.5% to 16%. Due to the lack of pattern among the control groups, it was not possible to perform a meta-analysis. Interpretation: this review provides information for decision making in performing NSM after NQT. Despite the low rates of local recurrence and patients should be counseled about limited oncological information.

RESUMO Introdução: O uso de mastectomia preservadora de complexo aréolo-papilar (MPCAP) no câncer de mama localmente avançado após quimioterapia neoadjuvante (QTN) é crescente, apesar de ainda haver poucos estudos abordando o assunto. O objetivo desta revisão sistemática foi determinar a segurança da MPCAP após a quimioterapia neoadjuvante. Métodos: para esta revisão sistemática, pesquisamos no MEDLINE; Cochrane; Scientific Electronic Library Online (SciELO); Embase e Scopus. Foi realizada uma busca na literatura de todos os estudos originais, incluindo ensaios clínicos randomizados, estudos de coorte e estudos de caso-controle comparando mulheres submetidas a MPCAP após quimioterapia neoadjuvante para câncer de mama. Os desfechos foram recorrência locorregional, recidiva em papila e recorrência à distância. A análise dos dados foi realizada para avaliar a segurança da mastectomia preservadora de complexo aréolo-papilar após o QTN. A qualidade da evidência foi avaliada com a ferramenta de avaliação de risco de viés da Cochrane - ROBINS-I. Este estudo está registrado no PROSPERO, número CRD42021276778. Resultados: Um total de 437 artigos foram identificados. Quatro artigos foram incluídos na análise, totalizando 1466 pacientes, todos com risco de viés geral moderado a alto. A recorrência local no grupo MPCAP após QTN variou de zero a 9,8%. A recorrência no complexo aréolo-papilar (CAP) variou de zero a 2,1%. A taxa de recorrência à distância variou de 6,5% a 16%. Devido à falta de padrão entre os grupos de controle, não foi possível realizar uma meta-análise. Interpretação: esta revisão fornece informações para a tomada de decisão na realização de NSM após QTN. Apesar das baixas taxas de recorrência local, os pacientes devem ser orientados sobre as informações oncológicas limitadas.

Prepectoral Direct-to-Implant Breast Reconstruction without Placement of Acellular Dermal Matrix or Mesh after Nipple-Sparing Mastectomy.

BACKGROUND: The aim of this study was to report the results of prepectoral direct-to-implant reconstruction in nipple-sparing mastectomy without acellular dermal matrices or mesh. METHODS: A multicenter cohort of patients undergoing prophylactic or therapeutic nipple-sparing mastectomy was included from 2013 to 2020. All sizes and types of breasts were included, except those with previously failed reconstruction, previous radiotherapy with severe skin damage, locally advanced breast cancer, gigantomasty, severe degree of ptosis, tumors close to the nipple-areola complex (<1 cm on magnetic resonance imaging), or combined autologous-based reconstruction. RESULTS: A total of 280 immediate breast reconstructions were performed in 195 patients. The mean age was 45 years and 32.8 percent of patients were postmenopausal. The mean follow-up period was 16.5 (±17.43) months. Eighty-five patients (43.6 percent) underwent bilateral mastectomy; 116 mastectomies (41.4 percent) were prophylactic and 164 (58.6 percent) were therapeutic. Sixty-eight reconstructions (24 percent) had at least one acute complication, the most common being implant explantation (9.2 percent), which was more frequent in smokers. Late complications included rippling (grades 3 and 4) in seven cases (3.8 percent) and capsular contracture (Baker II through IV) in 29 cases (15.7 percent) [22 Baker II (11.9 percent), six Baker III (3.3 percent), and one Baker IV (0.5 percent)]. One implant rotation was observed. No deformity animation was observed. Cosmetic results were considered good or excellent in 87.3 percent of patients. CONCLUSIONS: Overall complications were similar to those reported in acellular dermal matrices, mesh, or subpectoral series, except for a higher explantation rate. This technique is safe and economically advantageous, as it is a one-stage technique without acellular dermal matrices and mesh. These are preliminary data and larger and comparative studies are needed. CLINICAL QUESTION/LEVEL OF EVIDENCE: Risk, III.

Marking axillary nodes with 4% carbon microparticle suspension before neoadjuvant chemotherapy improves sentinel node identification rate and axillary staging.

BACKGROUND AND OBJECTIVES: Marking positive lymph nodes (LNs) before neoadjuvant chemotherapy (NAC) may improve the accuracy of sentinel lymph node biopsy (SLNB). The aim of this study was to determine the feasibility of marking LNs with 4% carbon microparticle suspension (CMS) before NAC and to evaluate if this technique would improve the SLNB identification rate. METHODS: A prospective study of patients with cT1-T4, cN1-N2 breast cancer who underwent US-guided fine-needle aspiration biopsy (FNAB) of suspected LNs and concomitant marking with 4% CMS was performed. After NAC, LNs marked with 4% CMS and those marked with Patent Blue V dye (PBV) were identified and resected. RESULTS: Of the 123 patients included, 74 (60.1%) had positive LNs at FNAB. During axillary surgery, 4% CMS was identified in 121 of 123 patients (98.3%) and blue sentinel LNs in 91% (112 of 123 patients) (P = .0103). Comparing isolated results of PBV and 4%CMS + PBV, the association was better in identifying positive LNs (72.2% vs 97.7%) (P = .02). CONCLUSION: The association of 4% CMS and PBV is feasible and significantly increased the identification rate of positive LNs. 4% CMS may play an important role as a complementary technique in patients submitted to NAC.

Reducing Postoperative Pain from Tonsillectomy Using Monopolar Electrocautery by Cooling the Oropharynx

Objective: Evaluate intraoperative cooling of the oropharynx to reduce postoperative pain in tonsillectomy using monopolar electrocautery. Methods: Sixty-six patients, age 1 to 12 years, were selected for the study, 33 in the control group and 33 in the experimental group. After randomization, patients underwent subcapsular dissection and hemostasis with monopolar electrocautery. Patients in the experimental group had the oropharynx cooled after tonsil dissection and hemostasis for 10 minutes. The procedure was done through the oral cavity by irrigation with 500 mL of 0.9% saline, in temperatures between 5°C and 10°C, for 5 minutes. The evaluation of postoperative pain was made with the pain visual analog scale (VAS) for 10 days. As complementary data on the evaluation of pain, we recorded daily use of ketoprofen for pain relief. Results: Pain after tonsillectomy assessed by VAS was significantly lower in the experimental group at days 0, 5, and 6 (p < 0.05). There were no differences in the use of ketoprofen between the groups. Conclusion: Cooling of the oropharynx after tonsillectomy promotes clinically significant reduction in postoperative pain, without additional complications...

Reducing postoperative pain from tonsillectomy using monopolar electrocautery by cooling the oropharynx.

Objective Evaluate intraoperative cooling of the oropharynx to reduce postoperative pain in tonsillectomy using monopolar electrocautery. Methods Sixty-six patients, age 1 to 12 years, were selected for the study, 33 in the control group and 33 in the experimental group. After randomization, patients underwent subcapsular dissection and hemostasis with monopolar electrocautery. Patients in the experimental group had the oropharynx cooled after tonsil dissection and hemostasis for 10 minutes. The procedure was done through the oral cavity by irrigation with 500 mL of 0.9% saline, in temperatures between 5°C and 10°C, for 5 minutes. The evaluation of postoperative pain was made with the pain visual analog scale (VAS) for 10 days. As complementary data on the evaluation of pain, we recorded daily use of ketoprofen for pain relief. Results Pain after tonsillectomy assessed by VAS was significantly lower in the experimental group at days 0, 5, and 6 (p < 0.05). There were no differences in the use of ketoprofen between the groups. Conclusion Cooling of the oropharynx after tonsillectomy promotes clinically significant reduction in postoperative pain, without additional complications.

Intervenções para tratamento da obesidade: revisão sistemática / Interventions in obesity treatments: a systematic review / Intervenciones para el tratamiento de la obesidad: una revisión sistemática

Objetivo: fazer uma revisão sistemática para avaliar a efetividade e segurança dos métodos para redução de peso, sendo eles: cirúrgico, farmacológico e mudanças do estilo de vida (MEV), que incluem exercícios físicos e dietas. Os resultados clínicos de interesse foram a perda de peso e sua manutenção pelo prazo mínimo de 1 ano. Método: foi feita uma busca de artigos nas bases de dados PUBMED, Scielo e Biblioteca do Cochrane, com as palavras-chave weight loss maintenance e obesity treatment. A busca incluiu artigos em português, inglês e espanhol publicados até outubro de 2011. Foram incluídos revisões sistemáticas, metanálises e ensaios clínicos randomizados que tivessem um período de seguimento maior ou igual a um ano. Os estudos deveriam ter como participantes: adultos obesos (maior que 18 anos e com índice de massa corpórea ­ IMC maior que 30) e que comparassem intervenções distintas para o tratamento da obesidade. Resultados: foram selecionados 5 artigos que contemplaram os critérios de inclusão, sendo que cada um desses estudaram isoladamente, comparados com MEV, a eficácia do Orlistat, Sibutramina, Pramlintide e gastroplastia. A gastroplastia teve um resultado significativo (p < 0,05) para evitar o total reganho de peso. O Orlistat produziu uma perda de peso significativa durante o primeiro ano de tratamento e o ganho de peso foi diminuído com seu uso no segundo ano de tratamento (p < 0,001). A Sibutramina se mostrou eficaz na manutenção do peso após um período de perda com dieta de grande restrição calórica. O Pramlintide mostrou efetividade na perda de peso e redução da circunferência abdominal. Conclusões: As intervenções farmacológicas e cirúrgicas se mostraram mais efetivas quando comparadas à MEV em relação à perda de peso e a sua manutenção a longo prazo, porém é necessária a realização de mais estudos que analisem a comparação entre as diferentes intervenções disponíveis para o tratamento da obesidade.

Objective: to make a systematic review to evaluate the effectiveness and safety of methods to reduce weight, as follows: surgical, pharmacological and changes in lifestyle, which include exercise and diet. Clinical outcomes of interest were weight loss and long-term loss maintenance. Methods: a search for the keywords "weight loss maintenance" and "obesity treatment" in articles from PubMed, Scielo and Cochrane Library database was performed. The search included articles in English, Portuguese and Spanish published until October 2011. Systematic reviews, meta-analysis and randomized clinical trials that had a follow-up period greater or equal to one year were included. The studies should have obese adults (over 18 years with body mass index greater than 30) as participants and compare different interventions to the treatment of obesity. Results: five articles that fulfill the inclusion criteria were selected, and each of these articles separately studied the effectiveness of Orlistat, Sibutramine, Pramlintide and gastroplasty, in comparison to changes in lifestyle. Gastroplasty presented significant results (p < 0.05) to avoid the total weight regain. Orlistat produced significant weight loss during the first year of treatment and weight gain was reduced with its use in the second year of treatment (p < 0.001). Sibutramine was effective in maintaining weight loss after a weight loss diet with high caloric restriction. Pramlintide showed effectiveness in weight loss and reduction in waist circumference. Conclusions: Pharmacological and surgical interventions were more effective compared to changes in lifestyle regarding weight loss and maintenance in the long term, but further studies need to be carried out to examine the comparison between the different interventions available for the treatment of obesity.

Objetivo: Realizar una revisión sistemática para evaluar la eficacia y la seguridad de los siguientes métodos para reducción de peso: cirugía, medicación y cambio de estilo de vida (CEV), incluyendo el ejercicio y la dieta. Los resultados clínicos evaluados fueron la pérdida de peso y su manutención por el plazo mínimo de un año. Métodos: Se buscaron artículos en las base de datos PubMed, Scielo y en la Biblioteca Cochrane con las palabras-clave "mantenimiento de la pérdida de peso" y "tratamiento de la obesidad". La búsqueda incluyó artículos en Inglés, Portugués y Español publicados hasta octubre de 2011. Se incluyeron revisiones sistemáticas, meta-análisis y ensayos clínicos aleatorizados que tuviesen un período de seguimiento mayor o igual a un año. Los estudios debían tener como participantes: adultos obesos (mayores de 18 años y con índice de masa corporal mayor que 30) y que comparasen diferentes intervenciones para el tratamiento de la obesidad. Resultados: Se seleccionaron cinco artículos que contemplaron los criterios de inclusión, cada uno de ellos fue estudiado por separado con relación al CEV, la eficacia del Orlistat, la Sibutramina, la Pramlintida, y la gastroplastia. La gastroplastia tuvo un resultado significativo (p < 0,05) para evitar la recuperación del peso total. El Orlistat produjo una pérdida significativa de peso durante el primer año de tratamiento y su uso disminuyó el aumento de peso en el segundo año de tratamiento (p < 0,001). La Sibutramina fue eficaz en el mantenimiento de peso después de un período de pérdida con una dieta de gran restricción calórica. La Pramlintida mostró eficacia en la pérdida de peso y reducción de la circunferencia abdominal. Conclusiones: Las intervenciones farmacológicas y quirúrgicas fueron más efectivas en comparación con el CEV en relación con la pérdida de peso y su mantenimiento a largo plazo, pero es necesario llevar a cabo más estudios que analicen la comparación entre las diferentes intervenciones disponibles para el tratamiento de la obesidad.