Breast implants

乳房植入物
  • 文章类型: Journal Article
    背景:乳腺癌是英国女性中最常见的恶性肿瘤。乳房切除术后,重建现在是乳腺癌手术治疗不可或缺的一部分,其中基于植入物的重建(IBBR)是最常见的类型。由于并发症,IBBR最初从胸前发展到胸后,但是随着肿瘤发生技术和新植入技术的发展,对胸前IBBR的兴趣有所增加。许多外科医生使用无细胞真皮基质(ADM);然而,文献中很少有证据表明这是否能改善并发症方面的手术结果,失败和患者满意度。这篇综述旨在评估使用ADM和不使用ADM的乳房重建手术结果是否存在差异的现有证据。
    方法:将使用OvidMEDLINE进行数据库搜索,Embase,Cochrane中央控制试验登记册,Cochrane系统评价和临床试验数据库。org。搜索时间为10年。研究将使用纳入和排除标准进行筛选,并将数据提取到标准化电子表格中。将评估偏差的风险。筛选,提取和偏见风险评估将由两名审阅者独立进行,并讨论和纠正差异。数据分析和荟萃分析将使用MicrosoftExcel和R软件进行。森林地块将用于双臂研究,以计算总体效果的异质性和p值。
    结论:随着胸前IBBR的复兴,重要的是,外科医生有足够的证据来协助手术决策.评估文献中的证据对于帮助外科医生确定与不使用ADM相比,使用ADM进行IBBR是否有益非常重要。这对患者并发症有潜在影响,医疗信托的满意度和成本。
    背景:PROSPERO2023CRD42023389072。
    BACKGROUND: Breast cancer is the most common malignancy among women in the UK. Following mastectomy, reconstruction is now integral to the surgical management of breast cancer, of which implant-based reconstruction (IBBR) is the most common type. IBBR initially evolved from pre-pectoral to post-pectoral due to complications, but with developments in oncoplastic techniques and new implant technology, interest in pre-pectoral IBBR has increased. Many surgeons use acellular dermal matrices (ADM); however, there is little evidence in literature as to whether this improves surgical outcomes in terms of complications, failure and patient satisfaction. This review aims to assess the available evidence as to whether there is a difference in surgical outcomes for breast reconstructions using ADM versus non-use of ADM.
    METHODS: A database search will be performed using Ovid MEDLINE, Embase, Cochrane Central Register of Controlled Trials, Cochrane Database of Systematic Reviews and Clinicaltrials.org. The search timeframe will be 10 years. Studies will be screened using inclusion and exclusion criteria and data extracted into a standardised spreadsheet. Risk of bias will be assessed. Screening, extraction and risk-of-bias assessments will be performed independently by two reviewers and discrepancies discussed and rectified. Data analysis and meta-analysis will be performed using Microsoft Excel and R software. Forest plots will be used for two-arm studies to calculate heterogeneity and p-value for overall effect.
    CONCLUSIONS: With the renaissance of pre-pectoral IBBR, it is important that surgeons have adequate evidence available to assist operative decision-making. Assessing evidence in literature is important to help surgeons determine whether using ADM for IBBR is beneficial compared to non-use of ADM. This has potential impacts for patient complications, satisfaction and cost to healthcare trusts.
    BACKGROUND: PROSPERO 2023 CRD42023389072.
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  • 文章类型: Journal Article
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  • 文章类型: Journal Article
    乳腺植入物相关间变性大细胞淋巴瘤(BIA-ALCL)和乳腺植入物相关鳞状细胞癌(BIA-SCC)是与乳腺植入物相关的新兴肿瘤并发症。虽然BIA-ALCL通常与宏观纹理植入物有关,目前的证据并不表明BIA-SCC与植入型相关.慢性炎症和遗传学被认为是关键的致病因素,尽管对于这两种条件,与乳房植入相关的确切机制和具体风险尚待确定.虽然BIA-SCC的遗传改变仍然未知,JAK-STAT途径激活已被概述为BIA-ALCL的显性特征。最近的基因调查发现了各种分子参与者,包括MEK-ERK,PI3K/AKT,CDK4-6和PDL1。BIA-ALCL和BIA-SCC的临床表现重叠,包括最常见的晚期血清肿和乳房肿胀,保证超声和细胞学检查,这是作为诊断工作的一部分的第一个推荐步骤。虽然乳房X线照相术的作用仍然有限,根据临床表现和疾病分期,建议使用MRI和CT-PET。迄今为止,BIA-ALCL和BIA-SCC的主要治疗方法是整囊切除术切除植入物.化疗和放疗也已用于晚期BIA-ALCL和BIA-SCC。肿瘤遗传学的深入表征是开发新的治疗策略的关键。特别是对于高级阶段的BIA-ALCL和BIA-SCC,表现出更积极的病程和不良的预后。
    Breast Implant-Associated Anaplastic Large Cell Lymphoma (BIA-ALCL) and Breast Implant-Associated Squamous Cell Carcinoma (BIA-SCC) are emerging neoplastic complications related to breast implants. While BIA-ALCL is often linked to macrotextured implants, current evidence does not suggest an implant-type association for BIA-SCC. Chronic inflammation and genetics have been hypothesized as key pathogenetic players, although for both conditions, the exact mechanisms and specific risks related to breast implants are yet to be established. While the genetic alterations in BIA-SCC are still unknown, JAK-STAT pathway activation has been outlined as a dominant signature of BIA-ALCL. Recent genetic investigation has uncovered various molecular players, including MEK-ERK, PI3K/AKT, CDK4-6, and PDL1. The clinical presentation of BIA-ALCL and BIA-SCC overlaps, including most commonly late seroma and breast swelling, warranting ultrasound and cytological examinations, which are the first recommended steps as part of the diagnostic work-up. While the role of mammography is still limited, MRI and CT-PET are recommended according to the clinical presentation and for disease staging. To date, the mainstay of treatment for BIA-ALCL and BIA-SCC is implant removal with en-bloc capsulectomy. Chemotherapy and radiation therapy have also been used for advanced-stage BIA-ALCL and BIA-SCC. In-depth characterization of the tumor genetics is key for the development of novel therapeutic strategies, especially for advanced stage BIA-ALCL and BIA-SCC, which show a more aggressive course and poor prognosis.
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  • 文章类型: Journal Article
    背景与目的:通过植入物放置矫正乳房肥大和下垂一直是整形外科医生面临的挑战。已经设计了各种方法,产生相互矛盾的结果。这项研究的目的是描述我们的手术技术的乳房减少硅胶植入物,介绍该程序的安全性,并报告患者报告的结果。材料和方法:对我们的病例系列进行了回顾性回顾由资深作者在2020年10月至2023年11月期间进行的美容乳房手术。仅包括切除超过300g乳腺组织的患者。记录手术和人口统计学特征。要求患者在手术前和手术后填写有关乳房满意度的问卷。结果:745例,25例纳入分析.总的来说,78.3%的患者表现为3级下垂。平均植入物尺寸为352.39cc(范围300-455cc)。乳腺组织切除312~657g,平均随访14.17个月。只有一例发生包膜挛缩和瀑布畸形后需要进行翻修手术。患者报告问卷的所有领域均有统计学上的显着改善(p<0.001)。结论:对于希望获得完整上极的大乳房下垂的患者,乳房缩小加植入物是一种安全有效的选择。它具有类似的风险特征来增强乳房固定术,并在缓解疾病方面保持其功能益处,脖子,肩膀疼痛。
    Background and Objectives: The correction of breast hypertrophy and ptosis with implant placement has always posed a challenge for plastic surgeons. Various methods have been devised, yielding conflicting results. The purpose of this study is to describe our surgical technique of breast reduction with silicone implants, present the safety profile of the procedure, and report patient-reported outcomes. Materials and Methods: A retrospective review was performed on our case series of cosmetic breast surgery performed by the senior author between October 2020 and November 2023. Only patients who had over 300 g of breast tissue removed were included. The surgery and demographic characteristics were recorded. Patients were asked to complete a questionnaire about satisfaction with their breasts pre-operatively and after the surgery. Results: Over 745 cases were performed, and 25 were included in the analysis. In total, 78.3% of the patients presented with a Grade 3 ptosis. The mean implant size was 352.39 cc (range 300-455 cc). The breast tissue removed ranged from 312 to 657 g. The mean follow-up was 14.17 months. Only one case required revision surgery after developing capsular contracture and a waterfall deformity. Patients reported a statistically significant improvement across all domains of the questionnaire (p < 0.001). Conclusions: Breast reduction plus implants is a safe and effective alternative for patients with large ptotic breasts who wish to attain a full upper pole. It carries a similar risk profile to augmentation mastopexy and maintains its functional benefits in alleviating back, neck, and shoulder pain.
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  • 文章类型: Case Reports
    隆胸是一种低风险的手术,几乎没有危及生命的并发症,最常见的破裂或泄漏和胶囊收缩。乳房植入物相关(BIA)恶性肿瘤很少见。间变性大细胞淋巴瘤(ALCL)是与隆胸相关的最著名的肿瘤疾病。已经报道了与植入物相关的癌,但比ALCL罕见。BIA间充质肿瘤极为罕见,大多数是局部侵袭性纤维瘤病。迄今为止,仅报告了7例BIA肉瘤。在这里,我们描述了一例硅胶BIA-未分化多形性肉瘤(UPS),该病例最初被误认为是ALCL,原因是临床和影像学表现存在显著重叠.这里,我们介绍了这种罕见肿瘤的形态和分子特征。我们回顾了与BIA肉瘤相关的现有文献,以强调在复发性ALCL阴性BIA积液病例中考虑这种诊断的重要性。
    Breast implant augmentation is a low-risk procedure with few life-threatening complications, most commonly rupture or leakage and contraction of the capsule. Breast implant-associated (BIA) malignancies are rare. Anaplastic large cell lymphoma (ALCL) is the most well-known neoplastic condition associated with breast augmentation. Carcinomas arising in association with implants have been reported but are rarer than ALCL. BIA-mesenchymal tumors are extremely rare and most are locally aggressive fibromatosis. To date, only eight cases of BIA sarcomas have been reported. Herein, we describe a case of silicone BIA-undifferentiated pleomorphic sarcoma (UPS) that was initially mistaken for ALCL because of a significant clinical and radiological overlap in presentation and imaging. Here, we present the morphological and molecular features of this rare neoplasm. We reviewed the existing literature related to BIA sarcomas to highlight the importance of considering this diagnosis in cases of recurrent ALCL-negative BIA effusions.
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  • 文章类型: Journal Article
    这项研究的目的是比较直接种植乳房重建中SF皮瓣和前锯肌(SM)之间的术后疼痛。
    这是一项前瞻性队列研究,纳入了2020年1月至2021年3月期间接受乳房切除术和一期基于植入物的乳房再造的53名诊断为乳腺癌的女性。29例患者(54.7%)有SF升高,24例(45.3%)患者接受SM抬高。我们在术后第一天评估了患者报告的术后早期疼痛。此外,据报道,第1个月的所有手术并发症和患者报告的结局(PRO)均使用BRECON23问卷进行测量.
    锯齿筋膜组使用体积较大的植入物,407.6±98.9cc(p<0.01)。在患者报告的术后疼痛评分方面,筋膜组和肌肉组之间没有显着差异(2对3;p=0.30)。此外,在早期手术并发症和乳房重建后的PROs方面,两组之间没有差异。
    使用SF似乎减少了发病率,这使得该技术成为乳房重建中考虑的替代方法。尽管筋膜和锯齿肌组之间的术后疼痛评分没有统计学差异。
    UNASSIGNED: The purpose of this study was to compare postoperative pain between SF flap and serratus anterior muscle (SM) in direct-to-implant breast reconstruction.
    UNASSIGNED: This is a prospective cohort study that included 53 women diagnosed with breast cancer who underwent mastectomy and one-stage implant-based breast reconstruction from January 2020 to March 2021. Twenty-nine patients (54.7%) had SF elevation, and 24 patients (45.3%) underwent SM elevation. We evaluated patient-reported early postoperative pain on the first day after surgery. Also, it was reported that all surgical complications in the first month and patient reported outcomes (PROs) were measured with the BRECON 23 questionnaire.
    UNASSIGNED: The serratus fascia group used implants with larger volumes, 407.6 ± 98.9 cc (p < 0.01). There was no significant difference between the fascial and muscular groups regarding the postoperative pain score reported by the patients (2 versus 3; p = 0.30). Also, there was no difference between the groups regarding early surgical complications and PROs after breast reconstruction.
    UNASSIGNED: The use of SF seems to cause less morbidity, which makes the technique an alternative to be considered in breast reconstruction. Although there was no statistical difference in postoperative pain scores between the fascia and serratus muscle groups.
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  • 文章类型: Journal Article
    本文旨在评估大分割质子治疗在乳腺癌重建中的应用。分析其优势,挑战,以及对患者护理的更广泛影响。我们的目标是全面了解如何将这种创新方法整合到乳腺癌治疗中。质子治疗具有优越的目标覆盖率和安全性,减少辐射引起的并发症和减少关键器官,但皮肤毒性结果不同于光子疗法。组织扩张器在乳房重建中至关重要,为积极的长期结果采用创新的计划,并强调平衡癌症治疗有效性和美容结果的重要性。大分割质子治疗和乳腺癌重建提出了有希望的创新,在目标覆盖和器官保留方面具有显着的优势。然而,皮肤毒性结果的变化以及在治疗效果和美容结果之间需要谨慎平衡的需要强调了持续的挑战.未来的方向应该集中在改进治疗方案上,优化患者选择标准,并整合新兴技术,以提高治疗效果,同时最大限度地减少不良反应。
    This review aims to assess the application of hypofractionated proton therapy in breast cancer reconstruction, analyzing its advantages, challenges, and broader implications for patient care. The goal is to comprehensively understand how this innovative approach can be integrated into breast cancer treatment. Proton therapy exhibits superior target coverage and safety, reducing radiation-induced complications and sparing critical organs, but skin toxicity outcomes differ from photon therapy. Tissue expanders are vital in breast reconstruction, employing innovative planning for positive long-term outcomes and highlighting the importance of balancing cancer treatment effectiveness with cosmetic outcomes. Hypofractionated proton therapy and breast cancer reconstruction present promising innovations with notable advantages in target coverage and organ sparing. However, variations in skin toxicity outcomes and the need for a careful balance between treatment effectiveness and cosmetic outcomes underscore ongoing challenges. Future directions should focus on refining treatment protocols, optimizing patient selection criteria, and integrating emerging technologies to enhance therapeutic outcomes while minimizing adverse effects.
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  • 文章类型: Journal Article
    植入式医疗设备广泛用于各种医疗专业的许多应用,范围从心血管支持到矫形假体和美容增强。然而,最近的观察结果引起了人们对这些植入物在其周围组织中诱发恶性肿瘤的潜力的担忧。已经有一些病例报告记录了这些设备附近癌症的发生,促使更仔细地检查他们的安全。这篇综述深入研究了流行病学,临床表现,病理结果,和假设的致癌机制与植入装置有关。它还探讨了植入物的手术领域以及固有特性和生物相容性如何影响这些罕见但严重的恶性肿瘤的发展。了解这些关联对于评估与使用医疗植入物相关的风险至关重要。并制定战略,以减轻潜在的不利结果。
    Implanted medical devices are widely used across various medical specialties for numerous applications, ranging from cardiovascular supports to orthopedic prostheses and cosmetic enhancements. However, recent observations have raised concerns about the potential of these implants to induce malignancies in the tissues surrounding them. There have been several case reports documenting the occurrence of cancers adjacent to these devices, prompting a closer examination of their safety. This review delves into the epidemiology, clinical presentations, pathological findings, and hypothesized mechanisms of carcinogenesis related to implanted devices. It also explores how the surgical domain and the intrinsic properties and biocompatibility of the implants might influence the development of these rare but serious malignancies. Understanding these associations is crucial for assessing the risks associated with the use of medical implants, and for developing strategies to mitigate potential adverse outcomes.
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  • 文章类型: Journal Article
    目的:使用数字乳腺断层合成(DBT)的标准方案与仅在筛查植入物增强女性时使用2D的替代方案,确定非植入物移位(ID)视图的癌症可视化效用和辐射剂量。
    方法:这项回顾性队列研究确定了从2014年7月28日至2021年12月31日接受DBT筛查检查发现异常的植入物女性。三名受过研究训练的乳腺放射科医师独立回顾了检查,以确定最初识别的异常是否可以在标准协议(ID和非ID视图的具有合成2D(S2D)的DBT)和替代协议(ID的具有S2D的DBT和非ID视图的仅S2D图像)上可视化。评估了两种方案的估计的检查平均腺体剂量(AGD)以及癌症可视化与患者和植入物特征之间的关联。
    结果:该研究包括195名患者(平均年龄55岁±10),有223名异常发现。随后对86例异常进行了活检:59例(69%)良性,8(9%)高风险,和19(22%)恶性。标准方案(19/223,8.5%)和替代方案(18/223,8.1%)之间的恶性可视化率没有显着差异(P=0.92),但纳入非ID视图的DBT发现另一个恶性肿瘤。使用标准方案的总检查AGD(21.9mGy±5.0)显着高于估计的替代方案(12.6mGy±5.0,P<.001)。按乳房厚度分层时仍然如此:6.0-7.9厘米,8.0-9.9厘米,>10.0cm(所有P<.001)。
    结论:将DBT纳入非ID视图并没有显着增加癌症可视化率,但却显着增加了总体检查AGD。
    OBJECTIVE: To determine cancer visualization utility and radiation dose for non-implant-displaced (ID) views using standard protocol with digital breast tomosynthesis (DBT) vs alternative protocol with 2D only when screening women with implant augmentation.
    METHODS: This retrospective cohort study identified women with implants who underwent screening DBT examinations that had abnormal findings from July 28, 2014, to December 31, 2021. Three fellowship-trained breast radiologists independently reviewed examinations retrospectively to determine if the initially identified abnormalities could be visualized on standard protocol (DBT with synthesized 2D (S2D) for ID and non-ID views) and alternate protocol (DBT with S2D for ID and only the S2D images for non-ID views). Estimated exam average glandular dose (AGD) and associations between cancer visualization with patient and implant characteristics for both protocols were evaluated.
    RESULTS: The study included 195 patients (mean age 55 years ± 10) with 223 abnormal findings. Subsequent biopsy was performed for 86 abnormalities: 59 (69%) benign, 8 (9%) high risk, and 19 (22%) malignant. There was no significant difference in malignancy visualization rate between standard (19/223, 8.5%) and alternate (18/223, 8.1%) protocols (P = .92), but inclusion of the DBT for non-ID views found one additional malignancy. Total examination AGD using standard protocol (21.9 mGy ± 5.0) was significantly higher than it would be for estimated alternate protocol (12.6 mGy ± 5.0, P <.001). This remained true when stratified by breast thickness: 6.0-7.9 cm, 8.0-9.9 cm, >10.0 cm (all P <.001).
    CONCLUSIONS: The inclusion of DBT for non-ID views did not significantly increase the cancer visualization rate but did significantly increase overall examination AGD.
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  • 文章类型: Journal Article
    目的:比较使用螺旋(H)和TomoDirect(TD)技术在接受即时乳房重建(IBR)的乳腺癌患者中植入保留照射与常规放疗(RT)。
    方法:分析了40例接受50.4Gy分28次递送的胸肌后植入物患者的剂量学参数。创建了三个计划:H计划使用包括胸壁在内的常规计划目标体积(PTV),皮肤,和植入;使用常规PTV的TD计划;和使用植入备用PTV的Hs计划。H,TD,并比较了PTV剂量的Hs计划,危险器官(OAR)剂量,和治疗时间。
    结果:与H和TD计划相比,Hs计划中的剂量分布不那么均匀和均匀。TD计划有下肺,心,对侧乳房,脊髓,肝脏,和食道剂量比Hs计划。与HS计划相比,H计划有较低的肺容量接受5Gy(V5)(39.1±3.9vs.41.2±3.9Gy;p<0.001),更高的V20(12.3±1.3vs.11.5±2.6Gy;p=0.02),和更高的V30(7.5±1.6vs.4.4±1.7Gy;p<0.001)。除V20外,H计划在心脏剂量参数方面优于Hs计划。Hs计划的平均植入剂量(43.4±2.1Gy)显著低于H计划(51.4±0.5Gy;p<0.001)和TD计划(51.9±0.6Gy;p<0.001)。实施用于减少硅酮剂量的植入物节约技术减少肺剂量。
    结论:常规H和TD计划在剂量上优于植入物保留螺旋计划。因为RT期间包膜挛缩是不可预测的,需要长期的临床结局来确定是否应该保留硅.
    OBJECTIVE: To compare implant sparing irradiation with conventional radiotherapy (RT) using helical (H) and TomoDirect (TD) techniques in breast cancer patients undergoing immediate breast reconstruction (IBR).
    METHODS: The dosimetric parameters of 40 patients with retropectoral implants receiving 50.4 Gy delivered in 28 fractions were analyzed. Three plans were created: H plan using conventional planning target volume (PTV) that included the chest wall, skin, and implant; TD plan using conventional PTV; and Hs plan using implant-sparing PTV. The H, TD, and Hs plans were compared for PTV doses, organ-at-risk (OAR) doses, and treatment times.
    RESULTS: Dose distribution in the Hs plan was less homogeneous and uniform than that in the H and TD plans. The TD plan had lower lung, heart, contralateral breast, spinal cord, liver, and esophagus doses than the Hs plan. Compared to the Hs plan, the H plan had lower lung volume receiving 5Gy (V5) (39.1±3.9 vs. 41.2±3.9 Gy; p<0.001), higher V20 (12.3±1.3 vs. 11.5±2.6 Gy; p=0.02), and higher V30 (7.5±1.6 vs. 4.4±1.7 Gy; p<0.001). H plan outperformed Hs plan in heart dosimetric parameters except V20. The Hs plan had significantly lower mean implant doses (43.4±2.1 Gy) than the H plan (51.4±0.5 Gy; p<0.001) and the TD plan (51.9±0.6 Gy; p<0.001). Implementing an implant sparing technique for silicone dose reduction decreases lung doses.
    CONCLUSIONS: Conventional H and TD plans outperform the implant sparing helical plan dosimetrically. Because capsular contracture during RT is unpredictable, long-term clinical outcomes are required to determine whether silicon should be spared.
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