RESUMO
INTRODUCTION: Axillary lymph node dissection (ALND) is recommended for patients with invasive breast cancer with axillary metastasis treated with neoadjuvant chemotherapy (NAC) who do not have a nodal pathologic complete response (n-pCR). We hypothesized that patients with a single, ultrasound-suspicious, nonpalpable lymph node (LN) at diagnosis, who do not achieve an n-pCR, will have ypN1 disease on surgical pathology. METHODS: This retrospective study identified breast cancer patients in our institution from 2012 to 2020 with axillary metastasis treated with NAC who did not achieve an n-pCR and had an ALND. Patient's tumor characteristics, axillary ultrasound, and lymph node disease burden at the time of surgery were reviewed. RESULTS: Fifty five patients met the criteria and 36% had one suspicious LN on ultrasound, 25% had 2, and 38% had >3. After chemotherapy, 64% had ypN1 disease, 29% had ypN2 disease, and 7% had ypN3 disease. Of the 20 patients with one abnormal LN on initial ultrasound, 17 (85%, 95% CI 61-96%) had ypN1 disease. Eleven patients with one abnormal LN on initial ultrasound also had no suspicious LNs on prechemotherapy physical exam; among these patients, 100% had ypN1 disease. CONCLUSIONS: For breast cancer patients who do not achieve an n-pCR after NAC, pretreatment normal clinical axillary exam and prechemotherapy ultrasound showing only one abnormal LN is associated with ypN1 disease. It may be reasonable to consider omitting completion ALND in this subset of patients while awaiting the results of the Alliance A011202 trial.
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Neoplasias da Mama , Biópsia de Linfonodo Sentinela , Humanos , Feminino , Terapia Neoadjuvante , Estudos Retrospectivos , Prognóstico , Excisão de Linfonodo , Linfonodos/patologia , Neoplasias da Mama/patologia , Metástase Linfática/patologia , Axila/patologiaRESUMO
BACKGROUND: Earlier studies showed net cost saving from anesthesia practitioners' use of a bundle of infection prevention products, with feedback on monitored Staphylococcus aureus intraoperative transmission. ESKAPE pathogens also include Enterococcus and gram-negative pathogens: Klebsiella, Acinetobacter, Pseudomonas, and Enterobacter. We evaluated whether bacterial contamination of patient nose, patient groin and axilla, anesthesia practitioners' hands, anesthesia machine, and intravenous lumen all contribute meaningfully to ESKAPE pathogen transmission within anesthesia work areas. METHODS: The retrospective cohort study used bacterial count data from nine hospitals, 43 months, and 448 ESKAPE pathogen transmission events within anesthesia areas of 86 operating rooms. Transmission was measured within and between pairs of successive surgical cases performed in the same operating room on the same day. RESULTS: There were 203 transmission events with S. aureus, 72 with Enterococcus, and 173 with gram negatives. ESKAPE pathogens in the nose contributed to transmission for 50% (99% confidence limit ≥45%) of case pairs, on the groin or axilla for 54% (≥49%), on the hands for 53% (≥47%), on the anesthesia machine for 21% (≥17%), and in the intravenous lumen for 24% (≥20%). ESKAPE pathogens in the nose started a transmission pathway for 27% (≥22%) of case pairs, on the groin or axilla for 24% (≥19%), on the hands for 38% (≥33%), on the anesthesia machine for 11% (≥7.6%), and in the intravenous lumen for 8.0% (≥5.3%). All P ≤ 0.0022 compared with 5%. CONCLUSIONS: To prevent intraoperative ESKAPE pathogen transmission, anesthesia practitioners would need to address all five categories of infection control approaches: nasal antisepsis (e.g., povidone-iodine applied the morning of surgery), skin antisepsis (e.g., chlorhexidine wipes), hand antisepsis with dispensers next to the patient, decontamination of the anesthesia machine before and during anesthetics, and disinfecting caps for needleless connectors, disinfecting port protectors, and disinfecting caps for open female Luer type connectors.
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Anestesia , Infecção Hospitalar , Contaminação de Equipamentos , Feminino , Humanos , Antibacterianos/uso terapêutico , Axila/microbiologia , Infecção Hospitalar/prevenção & controle , Contaminação de Equipamentos/prevenção & controle , Virilha/microbiologia , Estudos Retrospectivos , Staphylococcus aureus , Transmissão de Doença InfecciosaRESUMO
INTRODUCTION: Inflammatory breast cancer (IBC) is a rare and aggressive form of breast cancer. Currently, patients who respond to neoadjuvant chemotherapy (NAC) are treated with mastectomy and axillary lymph node dissection. This study aimed to synthesize real-world data to evaluate the feasibility of breast-conserving therapy (BCT), sentinel lymph node (SLN), and sentinel lymph node biopsy (SLNB) for patients with IBC who respond to NAC. METHODS: PubMed, Embase, and Cochrane Library databases were searched for relevant articles. Clinical studies that compared mastectomy with BCT for IBC treatment were reviewed. The primary outcomes were local recurrence rate and 5-y survival rate in patients with IBC who responded to NAC. Furthermore, the SLN detection rate and false-negative rate (FNR) for SLNB were also evaluated. RESULTS: In the final analysis, 17 studies were included. The pooled estimates of the local recurrence rate for mastectomy and no surgical intervention were 18.6% and 15.9%, respectively (P = 0.956). Five-y survival was similar for mastectomy, partial mastectomy, and no surgical intervention (45.8%, 57.1%, and 39.4%, respectively). The pooled estimates of the SLN detection rate and FNR for SLNB were 81.9% and 21.8%, respectively. CONCLUSIONS: Among patients with IBC who respond to NAC, the local recurrence and 5-y survival rates in those undergoing BCT are noninferior to the rates in those undergoing mastectomy; therefore, BCT could be a feasible option for surgical management. However, a poor SLN detection rate and a high FNR were found in patients undergoing SLNB. Further large-scale clinical studies are required to confirm our findings.
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Neoplasias da Mama , Neoplasias Inflamatórias Mamárias , Humanos , Feminino , Neoplasias da Mama/cirurgia , Neoplasias da Mama/tratamento farmacológico , Neoplasias Inflamatórias Mamárias/cirurgia , Neoplasias Inflamatórias Mamárias/patologia , Mastectomia Segmentar , Metástase Linfática/patologia , Mastectomia , Biópsia de Linfonodo Sentinela , Excisão de Linfonodo , Terapia Neoadjuvante , Axila/patologia , Linfonodos/patologiaRESUMO
INTRODUCTION: Occult breast cancer (OBC) consists of <0.1% of breast cancer cases in the United States. Male occult breast cancer (mOBC) has not been well-studied outside of case reports, and management is largely based on female OBC (fOBC) studies. We aim to examine the prevalence of mOBC among those in the National Cancer Database with breast cancer and describe treatment modalities received by mOBC compared to fOBC. METHODS: The National Cancer Database was queried for patients with OBC from 2004 to 2018. Chi-Square test and Fisher's exact tests compared patient, clinical, and facility characteristics by sex. Treatment modalities [systemic therapy, radiation therapy, axillary lymph node dissection, modified radical mastectomy (MRM)] were compared. A subgroup analysis examined pathologic upstaging in patients who underwent MRM. RESULTS: Of 23,374 male patients with breast cancer, 0.13% were identified to have mOBC [versus 0.09% in fOBC]. cN2/N3 disease was significantly more prevalent in the mOBC cohort (61.3%) than in the fOBC cohort (30.7%, P < 0.001). Receipt of axillary lymph node dissection or MRM was not significantly different by sex. Male OBC (mOBC) patients were less likely to receive trimodality treatment than fOBC patients. In patients who underwent MRM, more mOBC patients [75%] were pathologically upstaged as T+ after mastectomy than fOBC patients [30%, P < 0.001], questioning the adequacy of diagnostic workup for mOBC compared to fOBC. CONCLUSIONS: This review confirms mOBC as an extremely rare disease. Multimodal treatments have been highly utilized to optimize care in this patient population. Further investigation is warranted to examine the survival benefit of treatment regimens for mOBC.
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Neoplasias da Mama Masculina , Neoplasias da Mama , Humanos , Feminino , Masculino , Neoplasias da Mama/diagnóstico , Neoplasias da Mama/terapia , Neoplasias da Mama/patologia , Mastectomia , Metástase Linfática/patologia , Neoplasias da Mama Masculina/diagnóstico , Neoplasias da Mama Masculina/epidemiologia , Neoplasias da Mama Masculina/terapia , Excisão de Linfonodo , Terapia Combinada , Axila/patologiaRESUMO
INTRODUCTION: Axillary lymph node dissection was recommended for mastectomy patients with more than two nodal metastases from sentinel lymph node biopsy. Conventionally, intraoperative frozen section was sent routinely to reduce the need for second-stage axillary lymph node dissection; however, recent global trend has seen decreasing usage of the intraoperative analyses. This pilot study conducted in Thailand aimed to evaluate the role of intraoperative frozen section of sentinel lymph node biopsy in early-stage breast cancer patients who underwent mastectomy. METHODS: A 5-y retrospective study of 1773 patients was conducted in Thailand. The inclusion criteria were early-stage breast cancer patients with either radiologically negative nodes, or radiographically borderline nodes found to be negative on fine needle aspiration who underwent mastectomy and sentinel lymph node biopsy. Reoperations were indicated when three or more nodal metastases were detected on the pathological analysis. The reoperation rate prevented by frozen section and the reoperation rate needed for those with permanent section alone were reported. RESULTS: Among 265 patients, 202 patients underwent concomitant intraoperative frozen section while the remaining 63 patients underwent permanent section alone. Six patients (3.0%) from the frozen section group and one patient (1.6%) from the permanent section group were found with more than two nodal metastases. Despite using intraoperative frozen sections, only one patient from each group required reoperation. There was no significant difference in the number of patients requiring reoperation between the frozen section group and the permanent section group. CONCLUSIONS: Our study provides strong evidence to all surgeons that in early breast cancer patients undergoing mastectomy, sentinel lymph node biopsy with permanent section analysis alone may not lower the standard of care compared to using additional intraoperative frozen section analysis. Adopting this practice may lead to decreased operation costs, operative time, and anesthetic side effects.
Assuntos
Neoplasias da Mama , Biópsia de Linfonodo Sentinela , Humanos , Feminino , Neoplasias da Mama/cirurgia , Neoplasias da Mama/patologia , Secções Congeladas , Mastectomia/efeitos adversos , Estudos Retrospectivos , Projetos Piloto , Metástase Linfática/patologia , Excisão de Linfonodo , Linfonodos/patologia , Axila/patologiaRESUMO
OBJECTIVE: This study aims to evaluate the accuracy of preoperative 18F-FDG PET CT in detecting axillary lymph node (ALN) metastases in patients with breast cancer. PATIENTS AND METHODS: A retrospective analysis was performed on the medical records of 114 patients who underwent PET CT for breast cancer between January 2017 and January 2020. Clinicopathological features and the relationship between lymph node metastasis were evaluated. Sensitivity, specificity, positive predictive value, negative predictive value, and accuracy were calculated based on the PET CT findings compared to histopathological results. RESULTS: Among the 67 patients included in this study, 29 were identified as having no axillary involvement, while 38 showed axillary involvement according to preoperative PET CT. Of the 34 patients with histopathologically confirmed metastatic lymph nodes, 28 had PET CT-detected axillary involvement, while 6 did not. Similarly, among the 33 patients without histopathological evidence of lymph node metastasis, 23 had no axillary involvement according to PET CT, while 10 showed axillary involvement. The calculated values were as follows: sensitivity = 82.4% (67-92%), specificity = 69.7% (53-83%), positive predictive value = 73.7% (62-83%), negative predictive value = 79.3% (64%-89%), and accuracy = 76.1% (64-86%). CONCLUSIONS: The results suggest that preoperative 18F-FDG PET CT, particularly p SUVmax, can serve as an independent prognostic factor for ALN metastasis in breast cancer patients. Therefore, it may be beneficial for preoperative risk stratification and personalized treatment planning.
Assuntos
Neoplasias da Mama , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , Humanos , Feminino , Metástase Linfática/diagnóstico por imagem , Metástase Linfática/patologia , Fluordesoxiglucose F18 , Neoplasias da Mama/patologia , Compostos Radiofarmacêuticos , Estudos Retrospectivos , Tomografia Computadorizada por Raios X/métodos , Sensibilidade e Especificidade , Linfonodos/diagnóstico por imagem , Linfonodos/patologia , Axila/patologiaRESUMO
BACKGROUND: Radiotherapy has become much better targeted since the 1980s, improving both safety and efficacy. In breast cancer, radiotherapy to regional lymph nodes aims to reduce risks of recurrence and death. Its effects have been studied in randomised trials, some before the 1980s and some after. We aimed to assess the effects of regional node radiotherapy in these two eras. METHODS: In this meta-analysis of individual patient data, we sought data from all randomised trials of regional lymph node radiotherapy versus no regional lymph node radiotherapy in women with early breast cancer (including one study that irradiated lymph nodes only if the cancer was right-sided). Trials were identified through the EBCTCG's regular systematic searches of databases including MEDLINE, Embase, the Cochrane Library, and meeting abstracts. Trials were eligible if they began before Jan 1, 2009. The only systematic difference between treatment groups was in regional node radiotherapy (to the internal mammary chain, supraclavicular fossa, or axilla, or any combinations of these). Primary outcomes were recurrence at any site, breast cancer mortality, non-breast-cancer mortality, and all-cause mortality. Data were supplied by trialists and standardised into a format suitable for analysis. A summary of the formatted data was returned to trialists for verification. Log-rank analyses yielded first-event rate ratios (RRs) and confidence intervals. FINDINGS: We found 17 eligible trials, 16 of which had available data (for 14 324 participants), and one of which (henceforth excluded), had unavailable data (for 165 participants). In the eight newer trials (12 167 patients), which started during 1989-2008, regional node radiotherapy significantly reduced recurrence (rate ratio 0·88, 95% CI 0·81-0·95; p=0·0008). The main effect was on distant recurrence as few regional node recurrences were reported. Radiotherapy significantly reduced breast cancer mortality (RR 0·87, 95% CI 0·80-0·94; p=0·0010), with no significant effect on non-breast-cancer mortality (0·97, 0·84-1·11; p=0·63), leading to significantly reduced all-cause mortality (0·90, 0·84-0·96; p=0·0022). In an illustrative calculation, estimated absolute reductions in 15-year breast cancer mortality were 1·6% for women with no positive axillary nodes, 2·7% for those with one to three positive axillary nodes, and 4·5% for those with four or more positive axillary nodes. In the eight older trials (2157 patients), which started during 1961-78, regional node radiotherapy had little effect on breast cancer mortality (RR 1·04, 95% CI 0·91-1·20; p=0·55), but significantly increased non-breast-cancer mortality (1·42, 1·18-1·71; p=0·00023), with risk mainly after year 20, and all-cause mortality (1·17, 1·04-1·31; p=0·0067). INTERPRETATION: Regional node radiotherapy significantly reduced breast cancer mortality and all-cause mortality in trials done after the 1980s, but not in older trials. These contrasting findings could reflect radiotherapy improvements since the 1980s. FUNDING: Cancer Research UK, Medical Research Council.
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Neoplasias da Mama , Feminino , Humanos , Neoplasias da Mama/patologia , Linfonodos/patologia , Axila/patologia , Recidiva Local de Neoplasia/patologiaRESUMO
BACKGROUND: Prophylactic irradiation of supraclavicular lymph node drainage areas can improve the regional control rate of lymph node-positive or lymph node-negative disease but a locally-advanced stage breast cancer, and it can reduce breast cancer-related mortality. However, many controversies exist in the clinical target volume delineation of supraclavicular lymph node drainage in patients with breast cancer. METHODS: We retrospectively analyzed 42 patients with breast cancer and supraclavicular lymph node metastasis at our hospital between January 2017 and December 2021. Among these cases, 32 were locally advanced and 10 were stage IV at initial treatment. A patient with breast cancer who did not undergo dissection of the supraclavicular and infraclavicular lymph nodes at our hospital was selected as a standard patient. A contrast-enhanced computed tomography (CT) scan for positioning was used as a template image, and blood vessels, muscles, and bony landmarks were used as references for positioning. The metastatic supraclavicular lymph nodes were identified in all enrolled patients and projected into the template CT images. RESULTS: The metastastic pattern of supraclavicular lymph node in breast cancer was proposed: distribution along the posterolateral border of the internal jugular vein (medial supraclavicular group) and along the transverse jugular vein (lateral supraclavicular group). We theorized that the lateral and posterior borders of the clinical target volume in the supraclavicular region should include the lymph nodes in the posterior triangle of the neck (level V) in high-risk individuals. If the metastatic axillary lymph node is extensive, then the superior border of the supraclavicular region should be moved upward appropriately. CONCLUSIONS: This study analyzed patients with breast cancer and supraclavicular lymph node metastasis at initial treatment, explored the metastastic pattern of supraclavicular lymph node, and applied anatomical knowledge to further optimize the target volume delineation of supraclavicular lymph node drainage area in high-risk breast cancer.
Assuntos
Neoplasias da Mama , Humanos , Feminino , Neoplasias da Mama/patologia , Metástase Linfática/patologia , Estudos Retrospectivos , Linfonodos/diagnóstico por imagem , Linfonodos/patologia , Mama/patologia , Axila/patologia , Excisão de LinfonodoRESUMO
BACKGROUND: Lymph node surgery is commonly performed in the staging and treatment of metastatic skin cancer. Previous studies have demonstrated sentinel lymph node biopsy (SLNB) and, particularly, lymph node dissection (LND) to be plagued by high rates of wound complications, including surgical site infection (SSI) and seroma formation. This study evaluated the incidence of wound complications following lymph node surgery and provided the first published cost estimate of SSI associated with lymph node surgery in the UK. PATIENTS AND METHODS: A retrospective cohort study of 169 patients with a histological diagnosis of primary skin malignancy who underwent SLNB or LND of the axilla and/or inguinal region at a single tertiary centre over a 2 year period was conducted. Demographic, patient risk factor, and operation characteristics data were collected and effect on SSI and seroma formation was analysed. Cost-per-infection was estimated using National Health Service (NHS) reference and antibiotic costs. RESULTS: A total of 146 patients underwent SLNB with a SSI rate of 4.1% and a seroma incidence of 12.3%. Twenty-three patients underwent LND with a SSI rate of 39.1% and a seroma incidence of 39.1%. Seroma formation was strongly associated with the development of SSI in both the SLNB (odds ratio (OR) = 18.0, p < 0.001) and LND (OR = 21.0, p = 0.007) group. The median additional cost of care events and treatment of SSI in the SLNB and LND groups was £199.46 and £5187.04, respectively. CONCLUSION: SSI remains a troublesome and costly event following SLNB and LND. Further research into perioperative care protocols and methods of reducing lymph node surgery morbidity is required and could result in significant cost savings to the NHS.
Assuntos
Neoplasias Cutâneas , Infecção da Ferida Cirúrgica , Humanos , Infecção da Ferida Cirúrgica/etiologia , Infecção da Ferida Cirúrgica/complicações , Incidência , Seroma/etiologia , Estudos Retrospectivos , Medicina Estatal , Neoplasias Cutâneas/cirurgia , Neoplasias Cutâneas/patologia , Biópsia de Linfonodo Sentinela/efeitos adversos , Excisão de Linfonodo/efeitos adversos , Excisão de Linfonodo/métodos , Linfonodos/patologia , AxilaRESUMO
AIM: The aim of this study was to evaluate the correlation of the pathological response in breast tissue and the axilla of patients with breast cancer who underwent surgery following neoadjuvant chemotherapy. METHOD: This retrospective cohort study included patients with T1-4, N1-3, M0 breast cancer who underwent surgery following neoadjuvant chemotherapy at Gaziosmanpasa Training and Research Hospital between 2013 and 2022. The response of the breast tissue to chemotherapy was evaluated with the Miller-Payne grading system, and the response of the axillary lymph nodes to chemotherapy was evaluated with the Pinder grading system. The patients were grouped histopathologically as luminal A, luminal B, Her-2 enriched, or triple negative breast cancer (TNBC). RESULTS: The study was completed with 140 patients. Pathological complete response (pCR) was seen in the breast in 40 patients and in the axilla in 34. Of the patients with pCR in the breast, pCR was also determined in the axilla in 45%. In the patients with pCR in both the breast and axilla, Her-2 enriched subtype, estrogen receptor negativity, progesterone receptor negativity, Her-2 neu positivity, and Ki-67 level >25% were determined to be effective (p<0.05). Her-2 neu positivity was evaluated as statistically significant in the development of pCR in both the breast and axilla (OR: 4.06, 95% CI:1.2-13.6, p=0.023). CONCLUSION: The development of pCR in the breast, especially in the Her-2 enriched subgroup, can be accepted as a predictive factor for the evaluation of axillary response in patients with breast cancer. The least compatibility was seen in the luminal A subgroup. KEY WORDS: Breast cancer, Miller-Payne, Neoadjuvant chemotherapy Pathological complete response, Pinder.
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Neoplasias da Mama , Humanos , Feminino , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/cirurgia , Neoplasias da Mama/patologia , Terapia Neoadjuvante , Axila/patologia , Estudos Retrospectivos , Quimioterapia Adjuvante , Linfonodos/patologia , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêuticoRESUMO
The magnetic technique using superparamagnetic nanoparticles of iron oxide has been well established for sentinel lymph node detection. Its main advantage is in the context of logistics, with the possibility to inject several weeks before surgery and the possibility to give access to sentinel lymph node biopsy for women worldwide in places without nuclear medicine facilities. We have not yet seen the full potential of this technique, and new implications have been developed for breast tumour localisation with paramagnetic clips and axillary staging after neoadjuvant chemotherapy using paramagnetic clips inserted in lymph node metastases before chemotherapy. In this report, we have presented our experience of the magnetic technique starting in 2014, and we have highlighted our current and future research directions.
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Neoplasias da Mama , Linfonodo Sentinela , Humanos , Feminino , Suécia , Biópsia de Linfonodo Sentinela/métodos , Linfonodo Sentinela/patologia , Linfonodo Sentinela/cirurgia , Metástase Linfática/patologia , Axila , Terapia Neoadjuvante , Fenômenos Magnéticos , Neoplasias da Mama/patologia , Estadiamento de Neoplasias , Linfonodos/patologia , Excisão de Linfonodo/métodosRESUMO
We present a case of intractable chylorrhea following breast cancer surgery in a 75-year-old female. During a close examination for a mass in her left breast, which was indicated by a CT scan performed to test for nausea, cancer of the left breast and an enlarged left axillary lymph node were observed. The FNA of the axillary lymph node was unsuitable as a sample since no lymph node cell-derived components were observed. A left breast mastectomy and axillary lymph node dissection were performed for the evaluation of cT2N1M0, Stage â ¡B. On postoperative day 3, cloudy drainage was observed, leading to a diagnosis of chylorrhea. Despite management by a fat-restricted diet and peripheral infusion on postoperative day 4, chyle from the drainage remained high, with a TG of 257 mg/dL, a cell count of 525/mm3(70% lymphocytes), and a postoperative drainage volume of over 500 mL per day. On postoperative day 8, octreotide subcutaneous injection was started, and drainage could be reduced. Locally injected picibanil solution through the drain on postoperative days 12 and 17 further decreased the drainage to 20 mL/day, and the drain was removed. The patient was discharged on postoperative day 22. The occurrence of chylorrhea was a concern due to the risk of distal hepatic collateral flow, regional lymph nodes and vessels, and high hepatic flow pressure due to liver cirrhosis.
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Neoplasias da Mama , Humanos , Feminino , Idoso , Neoplasias da Mama/complicações , Neoplasias da Mama/cirurgia , Neoplasias da Mama/patologia , Mastectomia , Mama/patologia , Linfonodos/patologia , Excisão de Linfonodo/efeitos adversos , Octreotida , Cirrose Hepática/complicações , Cirrose Hepática/cirurgia , Axila/patologiaRESUMO
BACKGROUND: N-myc downstream-regulated gene-1 (NDRG1) is well-described as a potent metastasis suppressor, but its role in human breast cancer remains controversial and unclear. Therefore, the present study utilized a systematic review and meta-analysis approach to synthesize the association between NDRG1 protein expression and the aggressive characteristics of breast cancer. METHODS: The protocol for the systematic review and meta-analysis was registered on the PROSPERO website (CRD42023414814). Relevant articles were searched for in PubMed, Scopus, Embase, MEDLINE, and Ovid between March 30, 2023, and May 5, 2023. The included studies were critically evaluated using the Joanna Briggs Institute critical appraisal tools. The results from individual studies were qualitatively synthesized using textual narrative synthesis. Using a random-effects model, the pooled log odds ratio of effect estimate was used to look at the link between NDRG1 protein expression and aggressive features of breast cancer, such as tumor grade, tumor stage, metastasis to the axillary lymph nodes, and hormonal receptor status. RESULTS: A total of 1423 articles were retrieved from the electronic database search, and six studies that met the eligibility criteria were included for synthesis. There was an association between the expression of NDRG1 protein and the status of the axillary lymph nodes (P = 0.01, log Odds Ratio (OR): 0.59, 95% Confidence Interval (CI): 0.13-1.05, I2: 24.24%, 292 breast cancer cases with positive axillary lymph nodes and 229 breast cancer cases with negative axillary lymph nodes, 4 studies). NDRG1 protein expression and human epidermal growth factor receptor 2 (Her2) status were found to have a negative relationship (P = 0.01, log OR: -0.76, 95% CI: -1.32-(-0.20), I2: 32.42%, 197 breast cancer cases with Her2 positive and 272 breast cancer cases with Her2 negative, 3 studies). No correlation was found between NDRG1 protein expression and tumor grade (P = 0.10), estrogen receptor (ER) status (P = 0.57), or progesterone receptor (PR) status (P = 0.41). CONCLUSION: The study concluded that increased NDRG1 protein expression was associated with increased metastasis of the tumor to the axillary lymph node. Additionally, increased NDRG1 protein expression was observed in Her2-negative breast cancer, suggesting its role in both less aggressive and more aggressive behavior depending on breast cancer subtypes. Based on the findings of the meta-analysis, an increase in NDRG1 protein expression was associated with aggressive characteristics of breast cancer.
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Neoplasias da Mama , Feminino , Humanos , Axila/patologia , Neoplasias da Mama/genética , Neoplasias da Mama/metabolismo , Neoplasias da Mama/patologia , Proteínas de Ciclo Celular/metabolismo , Peptídeos e Proteínas de Sinalização Intracelular/genética , Linfonodos/patologia , Receptor ErbB-2/metabolismo , Receptores de Progesterona/metabolismoRESUMO
BACKGROUND: The high false negative rate (FNR) associated with sentinel lymph node biopsy often leads to unnecessary axillary lymph node dissection following neoadjuvant chemotherapy (NAC) in breast cancer. The authors aimed to develop a multifactor artificial intelligence (AI) model to aid in axillary lymph node surgery. MATERIALS AND METHODS: A total of 1038 patients were enrolled, comprising 234 patients in the primary cohort, 723 patients in three external validation cohorts, and 81 patients in the prospective cohort. For predicting axillary lymph node response to NAC, robust longitudinal radiomics features were extracted from pre-NAC and post-NAC magnetic resonance images. The U test, the least absolute shrinkage and selection operator, and the spearman analysis were used to select the most significant features. A machine learning stacking model was constructed to detect ALN metastasis after NAC. By integrating the significant predictors, we developed a multifactor AI-assisted surgery pipeline and compared its performance and false negative rate with that of sentinel lymph node biopsy alone. RESULTS: The machine learning stacking model achieved excellent performance in detecting ALN metastasis, with an area under the curve (AUC) of 0.958 in the primary cohort, 0.881 in the external validation cohorts, and 0.882 in the prospective cohort. Furthermore, the introduction of AI-assisted surgery reduced the FNRs from 14.88 (18/121) to 4.13% (5/121) in the primary cohort, from 16.55 (49/296) to 4.05% (12/296) in the external validation cohorts, and from 13.64 (3/22) to 4.55% (1/22) in the prospective cohort. Notably, when more than two SLNs were removed, the FNRs further decreased to 2.78% (2/72) in the primary cohort, 2.38% (4/168) in the external validation cohorts, and 0% (0/15) in the prospective cohort. CONCLUSION: Our study highlights the potential of AI-assisted surgery as a valuable tool for evaluating ALN response to NAC, leading to a reduction in unnecessary axillary lymph node dissection procedures.
Assuntos
Neoplasias da Mama , Humanos , Feminino , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/cirurgia , Neoplasias da Mama/patologia , Terapia Neoadjuvante/métodos , Inteligência Artificial , Estudos Retrospectivos , Estudos Prospectivos , Metástase Linfática/patologia , Linfonodos/diagnóstico por imagem , Linfonodos/cirurgia , Linfonodos/patologia , Biópsia de Linfonodo Sentinela/métodos , Excisão de Linfonodo , Axila/patologiaRESUMO
In May 16th, 2019, a male patient (aged 51 years) with a rare giant ulcer caused by skin diffuse large B-cell lymphoma in the axilla was admitted to Tongren Hospital of Wuhan University & Wuhan Third Hospital, and the ulcer wound was confirmed by biopsy and immunohistochemical analysis after extensive excision. Ultimately, a good prognosis was obtained by transplantation of flap and skin graft in combination with radiotherapy and chemotherapy.