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1.
BJS Open ; 5(3)2021 05 07.
Artículo en Inglés | MEDLINE | ID: mdl-33972991

RESUMEN

BACKGROUND: The increase in medical negligence claims against the National Health Service (NHS) over the past decade has had a detrimental impact on limited financial and human resources that could otherwise be available for direct clinical care. The aim of this study was to review litigation claims in breast surgery as part of the national Getting It Right First Time quality improvement initiative, with the aim of identifying opportunities to improve clinical practice and patient safety. METHODS: All general and plastic surgical claims notified to NHS Resolution between April 2012 and April 2018 were reviewed. Claims related specifically to breast surgery were retrieved manually, and case summaries were analysed independently by two breast surgeons. RESULTS: From 6915 claims, 449 relating to breast surgery were identified and reviewed. The mean(s.d.) claimant age was 46(13) years. The median number of claims over the 6-year period per NHS trust was 2 (range 0-22). The most frequent causes of litigation were dissatisfaction with cosmetic outcome (121 claims, 26.9 per cent) and patient-reported delays in diagnosis (121, 26.9 per cent). A large proportion of claims related to breast implant surgery (78, 17.4 per cent), and issues regarding consent/communication were common (69, 15.4 per cent). The estimated annual cost of breast surgery litigation claims ranged from £5.57 to £9.59 million (€6.35-11.02 million). CONCLUSION: Patient-reported delays in diagnosis and dissatisfaction with cosmetic outcome are the most common causes of litigation related to breast surgery. These key themes should be the focus for workforce learning, with the aim of improving patient care and experience.


Asunto(s)
Neoplasias de la Mama , Mala Praxis , Femenino , Humanos , Persona de Mediana Edad , Medicina Estatal
2.
Ann R Coll Surg Engl ; 103(5): e141-e143, 2021 May.
Artículo en Inglés | MEDLINE | ID: mdl-33682434

RESUMEN

At the onset of the COVID-19 crisis, a 63-year-old woman with multiple life-limiting comorbidities was referred with a necrotic infected left breast mass on a background of breast cancer treated with conservation surgery and radiotherapy 22 years previously. The clinical diagnosis was locally advanced breast cancer, but four separate biopsies were non-diagnostic. Deteriorating renal function and incipient sepsis and endocarditis resulted in urgent salvage mastectomy during the peak of the COVID19 pandemic. The final diagnosis was infected ischaemic/infarcted breast (wet gangrene) secondary to vascular insufficiency related to diabetes, cardiac revascularisation surgery and breast radiotherapy.


Asunto(s)
Antibacterianos/uso terapéutico , Mama/cirugía , Angiopatías Diabéticas/terapia , Infecciones por Enterobacteriaceae/terapia , Gangrena/terapia , Mastectomía/métodos , Mastitis/terapia , Terapia de Presión Negativa para Heridas/métodos , Mama/irrigación sanguínea , Neoplasias de la Mama/diagnóstico , COVID-19 , Carcinoma Ductal de Mama/diagnóstico , Puente de Arteria Coronaria , Desbridamiento/métodos , Diabetes Mellitus Tipo 2/complicaciones , Angiopatías Diabéticas/diagnóstico , Angiopatías Diabéticas/etiología , Diagnóstico Diferencial , Infecciones por Enterobacteriaceae/diagnóstico , Femenino , Gangrena/diagnóstico , Humanos , Infarto , Arterias Mamarias/cirugía , Mastectomía Segmentaria , Mastitis/diagnóstico , Persona de Mediana Edad , Morganella morganii , Recurrencia Local de Neoplasia/diagnóstico , Radioterapia , SARS-CoV-2 , Terapia Recuperativa
3.
BJS Open ; 3(2): 161-168, 2019 04.
Artículo en Inglés | MEDLINE | ID: mdl-30957062

RESUMEN

Background: Society of Surgical Oncology and American Society for Radiation Oncology guidelines define clear margins in breast-conserving therapy (BCT) as 'no ink on tumour', in contrast to the attainment of margins of at least 1 mm widely practised in the UK. The primary aim of this study was to explore clinical, surgical and tumour-related factors associated with local recurrence after BCT, with a secondary aim of assessing the impact of margin re-excision on the risk of local recurrence. Methods: Patient demographics, surgical details, tumour characteristics and local recurrence were recorded for consecutive women with BCT undergoing surgery between January 1997 and January 2007. Margins were defined as clear (greater than 1 mm), close (less than 1 mm but no ink on tumour), reaches (ink on tumour) and clear after re-excision. Results: A total of 1045 women of median age 54 (range 18-86) years were studied. Median follow-up was 89 (range 4-196) months. Local recurrence occurred in 52 patients (5·0 per cent). Ink on tumour was associated with local recurrence (hazard ratio (HR) 4·86, 95 per cent c.i. 1·49 to 15·79; P = 0·009). Risk of local recurrence was the same for close and clear margins (HR 1·03, 0·40 to 2·62; P = 0·954). In women with involved margins, re-excision was still associated with an increased local recurrence risk (HR 2·50, 1·32 to 4·72; P = 0·005). Oestrogen receptor negativity increased risk (HR 2·28, 1·28 to 4·06; P = 0·005). Conclusion: Adequately excised margins, even when under 1 mm, provide equivalent outcomes to wider margins in BCT. Achieving complete excision at primary surgery achieves the lowest rates of local recurrence.


Asunto(s)
Neoplasias de la Mama/terapia , Mama/cirugía , Márgenes de Escisión , Mastectomía Segmentaria/métodos , Recurrencia Local de Neoplasia/prevención & control , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Mama/patología , Neoplasias de la Mama/epidemiología , Neoplasias de la Mama/mortalidad , Supervivencia sin Enfermedad , Femenino , Estudios de Seguimiento , Humanos , Persona de Mediana Edad , Recurrencia Local de Neoplasia/epidemiología , Radioterapia Adyuvante , Reino Unido/epidemiología , Adulto Joven
4.
Br J Surg ; 105(5): 469-481, 2018 04.
Artículo en Inglés | MEDLINE | ID: mdl-29603132

RESUMEN

BACKGROUND: Neoadjuvant therapy (NAT) for operable breast cancer may facilitate more breast-conserving surgery (BCS). It seems, however, that this benefit is not being realized fully. METHODS: A systematic review of the literature was performed. RCTs were included. The criteria for inclusion were: documentation of surgical assessment before and after NAT, surgery performed (BCS or mastectomy), and clinical and pathological responses. RESULTS: A total of 1452 patients from seven RCTs met the inclusion criteria. After NAT, the feasibility of BCS increased from 43·3 to 60·4 per cent (P < 0·001), but BCS was performed in only 51·8 per cent (P = 0·04). Only 31 per cent of patients who became eligible for BCS (assessed on clinical response) underwent BCS (pooled rate ratio 0·31, 95 per cent c.i. 0·22 to 0·44; P < 0·001). Of the mastectomy candidates who achieved a pathological complete response after NAT, only 41 per cent underwent BCS (pooled rate ratio 0·41, 0·23 to 0·74; P = 0·003). The main factors that influenced the decision not to shift to BCS, even though it was feasible, were clinical assessment before NAT, multicentricity and tumour size at presentation. CONCLUSION: Breast surgery performed after NAT does not reflect tumour response, resulting in potentially unnecessary radical surgery, especially mastectomy. The barriers to maximizing the surgical benefits of NAT need to be better understood and explored.


Asunto(s)
Antineoplásicos/uso terapéutico , Neoplasias de la Mama/terapia , Mastectomía Segmentaria/métodos , Estadificación de Neoplasias , Neoplasias de la Mama/diagnóstico , Femenino , Humanos , Terapia Neoadyuvante
5.
Eur J Surg Oncol ; 43(8): 1393-1401, 2017 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-28596034

RESUMEN

BACKGROUND: Breast implant-associated anaplastic large-cell lymphoma (BIA-ALCL) is a rare, Non-Hodgkin lymphoma arising in the capsule of breast implants. BIA-ALCL presents as a recurrent effusion and/or mass. Tumours exhibit CD30 expression and are negative for Anaplastic Lymphoma Kinase (ALK). We report the multi-disciplinary management of the UK series and how the stage of disease may be used to stratify treatment. METHODS: Between 2012 and 2016, 23 cases of BIA-ALCL were diagnosed in 15 regional centres throughout the UK. Data on breast implant surgeries, clinical features, treatment and follow-up were available for 18 patients. RESULTS: The mean lead-time from initial implant insertion to diagnosis was 10 years (range: 3-16). All cases were observed in patients with textured breast implants or expanders. Fifteen patients with breast implants presented with stage I disease (capsule confined), and were treated with implant removal and capsulectomy. One patient received adjuvant chest-wall radiotherapy. Three patients presented with extra-capsular masses (stage IIA). In addition to explantation, capsulectomy and excision of the mass, all patients received neo-/adjuvant chemotherapy with CHOP as first line. One patient progressed on CHOP but achieved pathological complete response (pCR) with Brentuximab Vedotin. After a mean follow-up of 23 months (range: 1-56) all patients reported here remain disease-free. DISCUSSION: BIA-ALCL is a rare neoplasm with a good prognosis. Our data support the recommendation that stage I disease be managed with surgery alone. Adjuvant chemotherapy may be required for more invasive disease and our experience has shown the efficacy of Brentuximab as a second line treatment.


Asunto(s)
Implantes de Mama/efectos adversos , Neoplasias de la Mama/etiología , Neoplasias de la Mama/terapia , Consentimiento Informado , Linfoma Anaplásico de Células Grandes/etiología , Linfoma Anaplásico de Células Grandes/terapia , Adulto , Anciano , Neoplasias de la Mama/epidemiología , Neoplasias de la Mama/patología , Terapia Combinada , Remoción de Dispositivos , Femenino , Humanos , Linfoma Anaplásico de Células Grandes/epidemiología , Linfoma Anaplásico de Células Grandes/patología , Persona de Mediana Edad , Estadificación de Neoplasias , Resultado del Tratamiento , Reino Unido/epidemiología
6.
Eur J Surg Oncol ; 43(9): 1636-1646, 2017 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-28528191

RESUMEN

Improvements in breast surgery techniques such as skin and nipple preserving mastectomy and innovative prosthetics (implants, acellular dermal matrices and meshes) is renewing interest in subcutaneous (pre-pectoral) implant reconstruction. The aim of this paper is to review the current literature in an attempt to provide a rationale that may support a return to subcutaneous implant placement, so minimising the pain and functional problems resulting from submuscular breast reconstruction.


Asunto(s)
Implantación de Mama/métodos , Implantes de Mama , Neoplasias de la Mama/cirugía , Implantación de Mama/efectos adversos , Estética , Femenino , Humanos , Mastectomía Subcutánea , Dolor Postoperatorio/etiología , Selección de Paciente , Mallas Quirúrgicas
7.
Eur J Surg Oncol ; 43(1): 68-75, 2017 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-27692851

RESUMEN

INTRODUCTION: Bilateral mammoplasty (BM) can optimise oncological safety and aesthetic outcomes in women with large or ptotic breasts whose tumour to breast volume ratio or tumour location pose a challenge to standard breast-conserving therapy (BCT) and for whom mastectomy (with or without reconstruction) may be the only alternative. METHODS: We undertook a comprehensive analysis of surgical outcomes (complications according to the Clavien Dindo classification), acute radiation morbidity (Radiation Therapy Oncology Group classification), oncological outcomes, and patient satisfaction (BREAST-Q questionnaire) in women who underwent BM for breast cancer (BC) from June 2009-November 2014. RESULTS: 168 women were included. Median age was 55 years (range:33-84) and median tumour size at imaging 35 mm (range:0-170). Median specimen weight was 242 g (range 39-1824). The wise pattern technique was used in 87.5% of procedures. At least one complication occurred in 68 (40.5%) women, mostly Clavien Dindo grade 1. Grade 3 complications were infrequent (8.9%) but occurred mainly on the therapeutic mammoplasty (TM) side (p < 0.05). Complications were associated with higher BMI, specimen weight and longer time to radiotherapy (p < 0.05). Median follow-up was 37 months (range: 13-77). Local recurrence occurred in 3 (1.8%), distant metastases in 5 (3.0%), and 10 (6.0%) women have died. The median score for 'satisfaction with breasts' was 77 (range: 0-100). CONCLUSIONS: This study provides concurrent data on surgical, oncological and patient-reported outcomes. It offers evidence that BM is an effective treatment for breast cancer in large- or ptotic-breasted women.


Asunto(s)
Neoplasias de la Mama/cirugía , Mamoplastia/métodos , Adulto , Anciano , Anciano de 80 o más Años , Neoplasias de la Mama/radioterapia , Estética , Femenino , Estudios de Seguimiento , Humanos , Persona de Mediana Edad , Satisfacción del Paciente , Complicaciones Posoperatorias , Encuestas y Cuestionarios , Resultado del Tratamiento
8.
Eur J Surg Oncol ; 43(4): 636-641, 2017 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-27908586

RESUMEN

INTRODUCTION: Oncoplastic breast surgery is used to extend the role of breast-conserving surgery (BCS) to women with an unfavourable tumour to breast volume ratio. However, large-breasted women with a relatively small breast cancer may be offered bilateral reduction mammoplasty (BRM) despite being suitable for standard BCS as the more complex surgery may have advantages in terms of patient satisfaction and reduced adverse effects of radiotherapy. PATIENT AND METHODS: This retrospective study evaluated surgical and patient-reported outcome measures (PROMs) in large-breasted women with early (<3 cm) breast cancer, who have undergone unilateral standard BCS or BRM. RESULTS: This series included 157 women, 87 in the unilateral BCS group and 70 in the BRM group. Median age was 60.2 years (range: 33-83.9). Median follow-up was 36 months (range: 9.8-76). Tumour size, rates of axillary dissection, adjuvant chemotherapy and tumour bed irradiation boost were significantly greater in the BRM group (p < 0.05). The surgical complication rate was not significantly different (43.7% vs. 34.3%, p = 0.253). Re-excision rates were higher in the standard BCS group (p < 0.05). Time to chemotherapy was similar, but time to radiotherapy was longer after BRM surgery (p = 0.025). Despite worse prognostic factors, more complex surgery and more aggressive adjuvant treatment, patients report better satisfaction and physical functioning and fewer adverse effects of radiotherapy after BRM than standard unilateral BCS. This difference was not statistically different in this small study (p > 0.05). CONCLUSION: Limitations of this study mean it can only be regarded as hypothesis-generating. Nonetheless, the trends merit a prospective study to investigate the optimal management of smaller breast cancers in larger-breasted women.


Asunto(s)
Neoplasias de la Mama/cirugía , Mamoplastia/métodos , Mastectomía Segmentaria/métodos , Satisfacción del Paciente , Complicaciones Posoperatorias/epidemiología , Adulto , Anciano , Anciano de 80 o más Años , Axila , Neoplasias de la Mama/patología , Quimioterapia Adyuvante , Femenino , Humanos , Escisión del Ganglio Linfático , Persona de Mediana Edad , Medición de Resultados Informados por el Paciente , Radioterapia Adyuvante , Reoperación , Estudios Retrospectivos , Encuestas y Cuestionarios , Resultado del Tratamiento , Carga Tumoral
10.
Br J Surg ; 100(5): 654-61, 2013 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-23389843

RESUMEN

BACKGROUND: New Start, a structured, validated, multidisciplinary training programme in sentinel lymph node biopsy (SLNB), was established to allow the introduction and rapid transfer of appropriate knowledge and technical skills to ensure safe and competent practice across the UK. METHODS: Multidisciplinary teams attended a theory/skills laboratory course, following which they performed 30 consecutive SLNBs, either concurrently with their standard axillary staging procedure (training model A) or as stand-alone SLNB (training model B). SLNB was performed according to a standard protocol using the combined technique of isotope ((99m) Tc-labelled albumin colloid) and blue dye. An accredited New Start trainer mentored the first five procedures in the participant's hospital, or all 30 if stand-alone. Validation standards for model A and B were a localization rate of at least 90 per cent. In addition, for model A only, in which a minimum of ten patients were required to be node-positive, a false-negative rate (FNR) of 10 per cent or less was required. RESULTS: From October 2004 to December 2008, 210 SLNB-naive surgeons, in 103 centres, performed 6685 SLNB procedures. The overall sentinel lymph node (SLN) localization rate was 98·9 (95 per cent confidence interval 98·6 to 99·1) per cent (6610 of 6685) and the FNR 9·1 (7·9 to 10·5) per cent (160 of 1757). The FNR was related to nodal yield, ranging from 14·8 per cent for one node and declining to 9·7, 6·6, 4·7 and 4·1 per cent for two, three, four and more than four SLNs respectively. No learning curve was identified for localization or FNR. CONCLUSION: The programme successfully trained a wide range of UK breast teams to perform safe SLNB and suggested that a standard injection protocol and structured multidisciplinary training can abolish learning curves.


Asunto(s)
Neoplasias de la Mama/patología , Educación de Postgrado en Medicina/métodos , Biopsia del Ganglio Linfático Centinela/educación , Neoplasias de la Mama/cirugía , Competencia Clínica/normas , Reacciones Falso Negativas , Femenino , Humanos , Curva de Aprendizaje , Metástasis Linfática , Mastectomía/métodos , Mastectomía/estadística & datos numéricos , Mentores , Estadificación de Neoplasias/métodos , Grupo de Atención al Paciente/normas , Biopsia del Ganglio Linfático Centinela/normas , Carga de Trabajo/estadística & datos numéricos
11.
Eur J Surg Oncol ; 38(5): 395-8, 2012 May.
Artículo en Inglés | MEDLINE | ID: mdl-22436560

RESUMEN

AIM: Oncoplastic techniques are increasingly used to facilitate breast conservation and maintain breast aesthetics but evidence with regards to the oncological safety of oncoplastic breast conservation surgery (oBCS) remains limited. The aim of this study was to compare re-excision and local recurrence rates for oBCS with standard breast conserving surgery (sBCS). METHODS: From June 2003 to Feb 2010 data was obtained from contemporaneously recorded electronic patient records on patients who had oBCS and sBCS within a single breast cancer centre. Re-excision rates and local recurrence rates were compared. RESULTS: A total of 440 sBCS and 150 oBCS (in 146 women) were included in this study. Median tumour size and specimen weight was 21 mm and 67 g for oBCS and 18 mm and 40 g in the sBCS group (p < 0.001). Re-excision was 2.7% (4/150) and 13.4% (59/440) for oBCS and sBCS respectively (p < 0.001). At a median follow-up of 28 months, local relapse was 2.7% (4) and 2.2% (10) and distant relapse 1.3% (2) and 7.5% (33) for oBCS and sBCS respectively. CONCLUSIONS: Oncoplastic breast conserving techniques decrease re-excision rates. Early follow up data suggests oncological outcomes of oncoplastic breast conservation surgery are similar to standard breast conservation.


Asunto(s)
Neoplasias de la Mama/epidemiología , Neoplasias de la Mama/cirugía , Mamoplastia/efectos adversos , Mamoplastia/métodos , Mastectomía Segmentaria/efectos adversos , Mastectomía Segmentaria/métodos , Recurrencia Local de Neoplasia/epidemiología , Adulto , Anciano , Anciano de 80 o más Años , Neoplasias de la Mama/patología , Supervivencia sin Enfermedad , Femenino , Humanos , Incidencia , Estimación de Kaplan-Meier , Londres/epidemiología , Sistemas de Registros Médicos Computarizados , Persona de Mediana Edad , Clasificación del Tumor , Recurrencia Local de Neoplasia/etiología , Estadificación de Neoplasias , Reoperación/estadística & datos numéricos , Estudios Retrospectivos , Resultado del Tratamiento
12.
Eur J Surg Oncol ; 38(1): 8-15, 2012 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-22032909

RESUMEN

BACKGROUND: The utility of axillary lymph node dissection (ALND) in the management of breast cancer is currently under close scrutiny. At primary diagnosis the use of sentinel lymph node biopsy (SLNB) has restricted ALND for proven nodal disease, however the management of the axilla at local (in-breast) relapse is less clearly defined with many undergoing routine ALND. This review examines the role of SLNB in the re-operative setting with the objective of developing an axillary management algorithm for use at in-breast local relapse, and restricting ALND to node-positive recurrent cancers. METHODS: We reviewed published reports of SLNB at local relapse in women who had previously undergone axillary surgery either as lymph node biopsy, SLNB, axillary sampling (AS) or axillary lymph node dissection (ALND). RESULTS: There have been no randomised trials. Six reports with 327 cases were identified; of which 61% (199/327) had previous SLNB or ALND with <9 nodes removed. There was an overall successful sentinel lymph node (SLN) localisation at re-operation of 69% (227/327), range of 51-100%. In patients who have previously had limited axillary surgery (<9 nodes removed), the rate of successful SLN localisation was 83% (165/199), range of 68-100% and 142/165 (86%, range 80-100%) were node negative. In these highly selected patients no axillary recurrences were noted in those who had a negative SLN at re-operation after 26-46 months follow up. CONCLUSION: SLNB at in-breast relapse is feasible and safe with successful localisation related to the extent of previous axillary surgery.


Asunto(s)
Neoplasias de la Mama/patología , Neoplasias de la Mama/cirugía , Escisión del Ganglio Linfático , Recurrencia Local de Neoplasia/prevención & control , Selección de Paciente , Biopsia del Ganglio Linfático Centinela , Algoritmos , Axila , Neoplasias de la Mama/diagnóstico por imagen , Neoplasias de la Mama/prevención & control , Femenino , Humanos , Metástasis Linfática/diagnóstico , Linfocintigrafia/métodos , Procedimientos Innecesarios
13.
Breast ; 20(4): 373-9, 2011 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-21376594

RESUMEN

The number of women with stage IV disease who have breast reconstruction is small. The primary aim of this study was to examine opinions as to the appropriateness of breast reconstruction in this group. The Association of Breast Surgeons (ABS) and the British Association of Plastic Reconstructive and Aesthetic Surgeons (BAPRAS) were invited to take part in an online survey. Of the respondents, 78.7% would operate on the primary tumour. Plastic surgeons showed a propensity for immediate reconstruction compared to their breast surgery colleagues, and 26.3% of breast surgeons would not offer reconstruction at all. Immediate latissimus dorsi (LD) flap and implant were the favoured method in early stage disease with delayed LD and implant the most popular option for stage IV disease. As survival figures continue to improve, the number of patients requesting reconstruction is likely to increase. Further debate will be necessary in anticipation of future service development.


Asunto(s)
Actitud del Personal de Salud , Neoplasias de la Mama/patología , Neoplasias de la Mama/cirugía , Mamoplastia/estadística & datos numéricos , Pautas de la Práctica en Medicina/estadística & datos numéricos , Implantes de Mama , Estética , Femenino , Humanos , Estadificación de Neoplasias , Satisfacción del Paciente , Calidad de Vida , Derivación y Consulta/estadística & datos numéricos , Colgajos Quirúrgicos , Encuestas y Cuestionarios , Reino Unido
14.
Eur J Surg Oncol ; 37(2): 122-6, 2011 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-21095094

RESUMEN

AIMS: Axillary nodal status is the most important prognostic indicator which in turn influences adjuvant therapy and long term outcomes. The aim of this study was to compare total nodal yields from primary axillary lymph node dissection (pALND) with completion ALND after a cancer positive SLNB: either concurrently (cALND) following intra-operative assessment (IOA) of the SLN's or as a delayed procedure (dALND) when the SLN was found to be cancer positive on post-operative histological examination. METHODS: All axillary procedures performed between May 2006 and September 2009 were identified from a prospective database and categorised into four groups: SLNB with no further axillary surgery, pALND, cALND and dALND. Total nodal yield was the sum of SLN/s and ALND yields. RESULTS: Of 1025 axillary procedures, ALND accounted for 332 (32.4%) of which 207 (62.3%) underwent pALND, 43 (12.9%) cALND, and 82 (24.6%) dALND. Median nodal yields were 15.0, 16.0 and 14.5 respectively (p = 0.3). CONCLUSION: Total nodal yields for primary, concurrent and delayed ALND were comparable suggesting completion dALND performed as a second operation does not compromise axillary staging.


Asunto(s)
Neoplasias de la Mama/cirugía , Escisión del Ganglio Linfático/métodos , Ganglios Linfáticos/cirugía , Axila/cirugía , Neoplasias de la Mama/patología , Femenino , Humanos , Ganglios Linfáticos/patología , Persona de Mediana Edad , Estadificación de Neoplasias , Biopsia del Ganglio Linfático Centinela
15.
Breast ; 10(2): 176-8, 2001 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-14965581

RESUMEN

Cancer of the male breast is generally seen in men over 60 years of age and, as in women, the commonest histological type is invasive ductal carcinoma. Invasive lobular cancers are seen very rarely because of the absence of lobules in the male breast. Genetic abnormalities such as Klinefelter's syndrome can increase the risk of breast cancer, and it is thought that there has to be some cytoarchitectural abnormality for development of lobular cancers in men.

16.
Br J Cancer ; 77(1): 131-8, 1998.
Artículo en Inglés | MEDLINE | ID: mdl-9459158

RESUMEN

The extent of primary surgery for breast cancer could be tailored to the patient if previous information on the presence or absence of lymph node involvement could be reliably determined. Prospective radioimmunoscintigraphy in 29 patients with primary breast cancer that was found on screening has been undertaken with 555 MBq (15 mCi) 99mTc SM3, an Imperial Cancer Research Fund (ICRF) murine monoclonal antibody, 0.5 mg with images at 10 min and 22 h, and analysis using a change detection algorithm. Sites of significant change between the early and later images were displayed as a map of probabilities. Image-positive and -negative axillary lymph nodes were compared by histology in the 28 evaluable patients. The correct identification of the presence or absence of node involvement, even if impalpable, has been shown in 24 out of 28 patients (29 lymph node groups). Sensitivity was 90% (nine out of ten), specificity 84% (16 out of 19) and accuracy 86%. These results encourage further assessment of this technique.


Asunto(s)
Anticuerpos Monoclonales , Neoplasias de la Mama/diagnóstico por imagen , Radioinmunodetección/métodos , Tecnecio , Adulto , Anciano , Anciano de 80 o más Años , Axila , Femenino , Humanos , Procesamiento de Imagen Asistido por Computador , Ganglios Linfáticos/efectos de los fármacos , Persona de Mediana Edad , Modelos Estadísticos , Proyectos Piloto , Sensibilidad y Especificidad , Tecnecio/efectos adversos , Tórax/diagnóstico por imagen
17.
Cancer Chemother Pharmacol ; 36(3): 249-54, 1995.
Artículo en Inglés | MEDLINE | ID: mdl-7781147

RESUMEN

This study investigated the influence of the aromatase inhibitor 4-hydroxyandrostenedione (4OHA, formestane), given orally, on peripheral aromatase activity and plasma oestradiol (E2) levels in post-menopausal women with advanced breast cancer. The aim was to establish whether an optimal dose could be identified that had a pharmacological effectiveness comparable with that of parenteral 4OHA. A total of 13 post-menopausal women were studied before treatment and after a minimum of 4 weeks on treatment with one or more of the following doses: 125 mg once daily (od), 125 mg b.i.d. (bd) and 250 mg od. In all, seven aromatase studied were performed at 125 mg od; four, at 125 mg bd; and ten, at 250 mg od. Three patients were studied at all doses. E2 was measured concurrently and was available at all dose increments for seven patients. Given at doses of 125 mg od, 125 mg bd and 250 mg od, treatment with formestane inhibited in vivo aromatisation by 62.3% +/- 9.5%, 70.0% +/- 5.1% and 57.3% +/- 5.3%, respectively (mean +/- SEM). Corresponding values for plasma E2 suppression were 30.7% +/- 6.5%, 43.4% +/- 4.5% and 42.9% +/- 6.7%, respectively. Thus, apart from a somewhat better suppression of plasma E2 levels by the two higher doses as compared with 125 mg od, no significant difference in the degree of aromatase inhibition or plasma E2 suppression was observed. The suppression of E2 by oral 4OHA at 125 mg bd or 250 mg od approaches that achieved by the recommended parenteral schedule of 250 mg fortnightly, but inhibition of aromatase at this dose was substantially inferior. The findings are consistent with a hypothesis that 4OHA given orally may cause substantial plasma oestrogen suppression during part of the day, but neither the od nor the bd regimens investigated in the present study were capable of producing optimal aromatase inhibition.


Asunto(s)
Androstenodiona/análogos & derivados , Antineoplásicos/uso terapéutico , Inhibidores de la Aromatasa , Neoplasias de la Mama/sangre , Neoplasias de la Mama/tratamiento farmacológico , Estradiol/sangre , Administración Oral , Anciano , Anciano de 80 o más Años , Androstenodiona/administración & dosificación , Androstenodiona/uso terapéutico , Androstenodiona/toxicidad , Antineoplásicos/toxicidad , Neoplasias de la Mama/patología , Relación Dosis-Respuesta a Droga , Femenino , Humanos , Persona de Mediana Edad , Metástasis de la Neoplasia , Estadificación de Neoplasias , Posmenopausia
18.
Br J Cancer ; 69(6): 1171-5, 1994 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-8198987

RESUMEN

The effects of a combination of aminoglutethimide (AG) 1,000 mg daily and 4-hydroxy-androstenedione (4OHA) 500 mg i.m. weekly on peripheral aromatase activity as measured by in vivo radioisotopic tracer methodology and serum oestrogen suppression were investigated in ten post-menopausal women with advanced breast cancer. Patients were treated for a minimum of 4 weeks with 4OHA before addition of AG for a minimum of 6 weeks. Aromatase inhibition was found to be nearly identical in the two treatment situations (92.5 +/- 4.7% and 93.8 +/- 3.8% respectively). There was no further significant suppression of plasma oestradiol or plasma oestrone levels when AG was added to 4OHA treatment (mean decrease of 7.6 +/- 12.1% and 2.8 +/- 12.0% respectively). In contrast, adding AG caused a further suppression of plasma oestrone sulphate (Oe1S) compared with 4OHA monotherapy (mean suppression of 35.2 +/- 9.1%, P < 0.025). This effect on Oe1S may be due to an influence of AG on oestrogen metabolism.


Asunto(s)
Aminoglutetimida/uso terapéutico , Androstenodiona/análogos & derivados , Antineoplásicos/uso terapéutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Inhibidores de la Aromatasa , Neoplasias de la Mama/tratamiento farmacológico , Estrógenos/sangre , Adulto , Anciano , Aminoglutetimida/administración & dosificación , Androstenodiona/administración & dosificación , Androstenodiona/sangre , Androstenodiona/uso terapéutico , Neoplasias de la Mama/sangre , Neoplasias de la Mama/patología , Radioisótopos de Carbono , Femenino , Humanos , Persona de Mediana Edad , Posmenopausia , Técnica de Dilución de Radioisótopos
19.
Br J Cancer ; 66(4): 692-7, 1992 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-1419608

RESUMEN

The influence of the prototype aromatase inhibitor Aminoglutethimide (AG) and its analogue Rogletimide (RG) on peripheral aromatisation were investigated in 13 postmenopausal women with advanced breast cancer. Seven patients received AG 1,000 mg daily plus Hydrocortisone (HC) cover and six received RG as dose escalation of 200 mg bd, 400 mg bd and 800 mg bd. In vivo aromatase inhibition was investigated using the double bolus injection technique with [4-14C] oestrone ([4-14C]E1) and [6,7-3H] androstenedione ([6,7-3H]4A) followed by a 96 h urine collection. The labelled urinary oestrogens were separated and purified by chromatography and HPLC. Plasma oestradiol (E2) was also measured. AG mean aromatase inhibition was 90.6% +/- 1.8 s.e.m. and E2 suppression 75.7% +/- 7.3 s.e.m. RG mean aromatase inhibition was 50.6% +/- 9.8 s.e.m. at 200 mg bd, 63.5% +/- 5.7 s.e.m. at 400 mg bd and 73.8% +/- 5.8 s.e.m. at 800 mg bd. E2 suppression was 30.7% +/- 9.5 s.e.m., 40.2% +/- 10.3 s.e.m. and 57.6% +/- 9.2 s.e.m. respectively. These results confirm the efficacy of AG as an aromatase inhibitor. RG produced dose dependent E2 suppression and aromatase inhibition, but even at the maximum tolerated dose of 800 mg bd had sub-optimal aromatase inhibition and oestradiol suppression compared with AG.


Asunto(s)
Aminoglutetimida/análogos & derivados , Aminoglutetimida/uso terapéutico , Inhibidores de la Aromatasa , Neoplasias de la Mama/tratamiento farmacológico , Neoplasias de la Mama/metabolismo , Estrógenos/metabolismo , Adulto , Anciano , Anciano de 80 o más Años , Esquema de Medicación , Femenino , Humanos , Hidrocortisona/administración & dosificación , Persona de Mediana Edad
20.
J Steroid Biochem Mol Biol ; 41(3-8): 769-71, 1992 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-1562552

RESUMEN

Peripheral aromatase activity was measured in 24 postmenopausal women suffering from advanced breast cancer. The % conversion of androstenedione to oestrone was then assessed for a significant correlation with age, weight, height, Quetelets index (weight/height2, Q.I.) and length of menopause. Serum oestradiol (E2) levels were measured in 22 of the subjects and compared with the same indices. There was no correlation between E2 or aromatase activity with the length of menopause (P = 0.3 and P = 0.5, respectively). In our data aromatase activity did not correlate with age (P greater than 0.5, n = 22). Serum E2 levels (P = 0.07, n = 20) expressed a negative correlation (i.e. decreased) with age. There was also a poor correlation between aromatase activity and weight of Quetelets index (P = 0.3, n = 20 for both). Serum E2 levels showed a statistically significant correlation with weight (P = 0.01, n = 21), but the relationship with Quetelets index just failed to attain statistical significance (P = 0.07, n = 20). In both cases the regression line was positive. When aromatase activity was correlated with serum E2 levels the regression line was positive but not statistically significant (P = 0.4, n = 22). The data indicate that aromatase activity is only one factor determining the differences in serum E2 levels between postmenopausal women.


Asunto(s)
Aromatasa/sangre , Neoplasias de la Mama/sangre , Adulto , Factores de Edad , Anciano , Anciano de 80 o más Años , Peso Corporal , Neoplasias de la Mama/enzimología , Femenino , Humanos , Menopausia , Persona de Mediana Edad , Análisis de Regresión
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