Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 28
Filtrar
1.
Ir Med J ; 115(2): 536, 2022 02 17.
Artículo en Inglés | MEDLINE | ID: mdl-35416462

RESUMEN

Background Radium 223 (Ra-223) has been successfully utilised for the treatment of men with metastatic castrate resistant prostate cancer (mCRPC). To date, no real world outcomes from its use in the Irish population have been described. Methods All men referred to our institution for Ra-223 from September 2016 to March 2019 were included. Patient demographics, treatments received, toxicities and outcomes were recorded. Overall survival (OS) and progression free survival (PFS) were analysed using the Kaplan-Meier method. Results Complete data was available for 54 men. Median age was 75 years (range 61-86 years). The median number of prior systemic treatments for mCRPC was 2 (range 0-4). Median ECOG performance status was 1 at the start of treatment and 2 at completion. The median number of Ra-223 cycles received was 4 with 37%(n=20) completing all 6 planned cycles. The most common treatment-related toxicity was fatigue seen in 52% of patients ( n=28). Improved pain scores were documented in 76% of men requiring opioid analgesia at the start of treatment. The median OS was 7 months. A good ECOG performance status, fewer than 6 bone metastases, normal alkaline phosphatase level at start of treatment and chemotherapy naivety were associated with improved OS. Conclusions Ra-223 is a moderately well tolerated palliative treatment amongst Irish men with mCRPC.


Asunto(s)
Neoplasias Óseas , Neoplasias de la Próstata Resistentes a la Castración , Radio (Elemento) , Anciano , Anciano de 80 o más Años , Neoplasias Óseas/radioterapia , Femenino , Humanos , Masculino , Persona de Mediana Edad , Neoplasias de la Próstata Resistentes a la Castración/tratamiento farmacológico , Neoplasias de la Próstata Resistentes a la Castración/radioterapia , Radio (Elemento)/efectos adversos , Estudios Retrospectivos , Resultado del Tratamiento
2.
J Palliat Care ; : 8258597221078391, 2022 Feb 07.
Artículo en Inglés | MEDLINE | ID: mdl-35129002

RESUMEN

Background and Objectives: Immune checkpoint inhibitors (ICIs) have less toxicity than standard chemotherapy and are now standard of care for many patients with advanced cancer. A manageable side effect profile and potential for durable responses may lead to aggressive care of the palliative patient. We sought to evaluate palliative care input and ICI use at the end of life at two Irish cancer centres. Methods: We identified deceased patients who received at least one dose of an ICI between first of January 2013 to 31st of December 2018. A retrospective electronic chart review was performed. Results: The electronic records of 102 patients were analysed. Fifty eight percent were male and the median age of diagnosis of advanced disease was 60 years (range 17-78). Median time from last dose of ICI to death was 57 days (range 8-574) and 20% of patients died within 30 days of last dose of ICI. Most patients, 92%, were referred to palliative care. The median time from palliative care referral to death was 64 days (range 1- 1010). In the last 30 days of life, 39% of patients attended the emergency department (ED) and 46% had at least one hospital admission. Late palliative care referrals, ≤3 months before death, were associated with hospitalisations in the last month of life (64% vs. 36%, P = .02). Timing of palliative care referral did not affect ICI prescribing at the end of life (P = 0.38). ICI use in the last 30 days of life was not associated with increased ED presentations or hospitalisations at the end of life. Patients who received ICI in the last month had a higher likelihood of in-hospital death (43% vs. 16%, P = 0.02). Conclusions: ICI within 30 days of death was associated with dying in hospital but did not lead to more hospitalisations and emergency department presentations. Early palliative care did not affect ICI use but reduced hospitalisations at the end of life.

3.
Ir Med J ; 112(2): 870, 2019 02 14.
Artículo en Inglés | MEDLINE | ID: mdl-30892003

RESUMEN

Aims The number of colorectal cancer (CRC) survivors in Ireland is rising. We aimed to survey current surveillance practices and pilot the use of survivorship care plans (SCPs) in the clinic. Methods An online survey was issued to medical oncologists (MOs) in designated cancer centres (DCC) and satellite centres. The SCP was piloted in CRC patients and a follow-up questionnaire assessing their views was issued. Results Responses from 8 DCC and satellite centres were obtained (n=13). Routine surveillance is practiced by 77% (n=10) and 69% (n=9) believe that the MO clinic is inappropriate for follow-up. Most think that the SCP is useful and that ANP-led surveillance clinics should be introduced. Of 16 patients who replied to the survey, most felt that the SCP was bene􀂡cial. Sixty-two percent (n=10) were agreeable to GP follow-up using the SCP. Conclusion Surveillance practices in Ireland are heterogeneous. The SCP may be useful for streamlining follow-up practices nationally.


Asunto(s)
Neoplasias Colorrectales/mortalidad , Neoplasias Colorrectales/terapia , Planificación de Atención al Paciente/tendencias , Proyectos Piloto , Desarrollo de Programa , Supervivencia , Cuidados Posteriores , Continuidad de la Atención al Paciente , Femenino , Humanos , Irlanda/epidemiología , Masculino , Calidad de la Atención de Salud , Encuestas y Cuestionarios , Tasa de Supervivencia
4.
Ir J Med Sci ; 186(4): 875-881, 2017 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-28477329

RESUMEN

BACKGROUND: Cancer in pregnancy is relatively rare, but the incidence is increasing. Several studies show that cytotoxic agents are safe to use in pregnancy from the second trimester onwards. AIMS: This study assesses the maternal and foetal outcomes of cancers diagnosed during pregnancy. In particular, it focuses on a subset of women who elected to defer systemic chemotherapy until after delivery. This study examines if all cancers need to be treated during pregnancy or if, in certain cases, treatment can be safely deferred until after full-term delivery. METHODS: This is a retrospective observational study of women diagnosed with cancer during pregnancy in an Irish cancer centre over a 27-year period. All women diagnosed with cancer during pregnancy who were referred to the medical oncology department for consideration of chemotherapy were included in this study. Medical and pharmacy records were extensively reviewed. RESULTS: Twenty-five women were diagnosed with cancer in pregnancy and referred to medical oncology for consideration of systemic chemotherapy. Sixteen women (64%) commenced chemotherapy during pregnancy, seven women (28%) did not receive chemotherapy while pregnant, but commenced treatment immediately after delivery, and two (8%) did not receive any systemic chemotherapy at all. Of the seven women who commenced chemotherapy after delivery, six (85.7%) were diagnosed before 30/40 gestation. There were three cases of Hodgkin's lymphoma, two breast cancers and one ovarian cancer. After a median follow-up of 12 years, all six mothers remain disease-free. CONCLUSIONS: This study identified a select cohort of patients that did not receive chemotherapy during pregnancy. There were no adverse outcomes to mothers due to delayed treatment.


Asunto(s)
Quimioterapia/métodos , Complicaciones Neoplásicas del Embarazo/tratamiento farmacológico , Adulto , Femenino , Humanos , Embarazo , Complicaciones Neoplásicas del Embarazo/patología , Resultado del Embarazo , Estudios Retrospectivos , Adulto Joven
6.
Ir Med J ; 110(10): 647, 2017 Dec 18.
Artículo en Inglés | MEDLINE | ID: mdl-29465837

RESUMEN

Diabetic retinopathy is a significant complication of diabetes, and the most common cause of blindness in people under the age of 65. The National Diabetic Retinal Screening Programme (Diabetic RetinaScreen) was established to detect sight threatening retinopathies. The purpose of this cross-sectional study is to determine the barriers to the uptake of Diabetic RetinaScreen, to investigate discrepancies in attendance, if any, between patients whose diabetes care is delivered in a large tertiary referral hospital out-patient setting or in general practice, and to evaluate general practitioner's satisfaction with the service. Older age (OR 1.023, 95% CI 1.001 to 1.046) and complications of diabetes, excluding ocular complications, (OR 2.741, 95% CI 1.158 to 6.489) were associated with increased attendance at Diabetic RetinaScreen. Online referral is now available and the preferred method of referral. Efforts to encourage younger patients who do not yet have complications of diabetes may be beneficial.

7.
Case Rep Oncol Med ; 2016: 5471862, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27830100

RESUMEN

A 37-year-old male presented with a traumatic injury to the scrotal region necessitating emergency surgery. Evacuation of a haematoma and bilateral orchidectomy were performed. A left sided nonseminomatous germ cell tumour (NSGCT), predominantly yolk sac, was identified. Microscopic margins were positive for tumour. Initial tumour markers revealed an AFP of 22,854 ng/mL, HCG of <1 mIU/mL, and LDH of 463 IU/L. Eight weeks after surgery, AFP levels remained elevated at 11,646 ng/mL. Computed tomography (CT) scanning demonstrated left inguinal adenopathy, 1.5 cm in max dimension. On review, extensive evidence of scrotal involvement was evident. His tumour was staged as stage IIIC, poor risk NSGCT. He was treated with 4 cycles of bleomycin, etoposide, and cisplatin over a 12-week period. His tumour markers normalised after 3 cycles. There was a marked improvement noted clinically. Follow-up CT scans demonstrated complete resolution of his tumour. He later underwent further surgery to remove a small amount of remaining spermatic cord. Histology revealed no malignant tissue. The patient suffered many complications including testosterone deficiency, osteopenia, infertility, and psychological distress. Discussion. A small proportion of testicular cancer may present in an atypical manner. The scrotum and testicle have markedly different embryonic origins and therefore a distinct anatomic separation. As a result the scrotum is not a typical site of spread of testicular cancer. Case reports have been described that were managed in a similar manner with good outcomes. Therefore, even with significant scrotal involvement, if timely and appropriate treatment is administered, complete resolution of the tumour may be achieved.

8.
Surgeon ; 14(2): 82-6, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-25444439

RESUMEN

INTRODUCTION: There is an average of 25 cases of penile cancer in the Republic of Ireland each year. Due to the low volume of cases, the National Institute for Clinical Excellence recommends that treatment is centralised to allow the best standardised treatment for primary tumours and nodal disease. OBJECTIVES: To determine whether outcomes for patients with penile cancer differed significantly between secondary and tertiary referral centres in the Republic of Ireland. METHODS: Between 2001 and 2014, 36 patients were treated in the Mercy University Hospital (MUH) with penile cancer. Twenty patients were treated primarily in MUH and 16 patients underwent initial management in a secondary referral centre (SRC) with subsequent referral to the MUH. A retrospective matched case-control study was performed on this patient cohort. RESULTS: There were no significant differences in length of follow-up or risk factors for the development of penile cancer between both groups (p = 0.6 and p = 0.5 respectively) Ultimately, the incidence of high risk disease, nodal metasases, high grade disease and pelvic lymph node dissection were significantly greater in patients that were initially managed in a SRC (p = 0.02, p = 0.03, p = 0.004 and p = 0.028 respectively). Patients undergoing initial treatment in a SRC had a non-significantly reduced rate of cancer specific survival (88 Vs 66%, MUH Vs SRCs, p = 0.495) and recurrence free survival (85 Vs 46%, MUH Vs SRCs, p = 0.24). CONCLUSION: Our findings suggest that managing penile cancer in special interest centres may improve oncological outcome.


Asunto(s)
Manejo de la Enfermedad , Estadificación de Neoplasias , Neoplasias del Pene/terapia , Anciano , Estudios de Seguimiento , Humanos , Incidencia , Irlanda/epidemiología , Masculino , Persona de Mediana Edad , Neoplasias del Pene/epidemiología , Estudios Retrospectivos
9.
Eur Radiol ; 25(4): 1005-13, 2015 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-25500962

RESUMEN

OBJECTIVES: Risks associated with high cumulative effective dose (CED) from radiation are greater when imaging is performed on younger patients. Testicular cancer affects young patients and has a good prognosis. Regular imaging is standard for follow-up. This study quantifies CED from diagnostic imaging in these patients. METHODS: Radiological imaging of patients aged 18-39 years, diagnosed with testicular cancer between 2001 and 2011 in two tertiary care centres was examined. Age at diagnosis, cancer type, dose-length product (DLP), imaging type, and frequency were recorded. CED was calculated from DLP using conversion factors. Statistical analysis was performed with SPSS. RESULTS: In total, 120 patients with a mean age of 30.7 ± 5.2 years at diagnosis had 1,410 radiological investigations. Median (IQR) surveillance was 4.37 years (2.0-5.5). Median (IQR) CED was 125.1 mSv (81.3-177.5). Computed tomography accounted for 65.3 % of imaging studies and 98.3 % of CED. We found that 77.5 % (93/120) of patients received high CED (>75 mSv). Surveillance time was associated with high CED (OR 2.1, CI 1.5-2.8). CONCLUSIONS: Survivors of testicular cancer frequently receive high CED from diagnostic imaging, mainly CT. Dose management software for accurate real-time monitoring of CED and low-dose CT protocols with maintained image quality should be used by specialist centres for surveillance imaging. KEY POINTS: • CT accounted for 98.3 % of CED in patients with testicular cancer. • Median CED in patients with testicular cancer was 125.1 mSv • High CED (>75 mSv) was observed in 77.5 % (93/120) of patients. • Dose tracking and development of low-dose CT protocols are recommended.


Asunto(s)
Diagnóstico por Imagen , Neoplasias de Células Germinales y Embrionarias/diagnóstico por imagen , Neoplasias Testiculares/diagnóstico por imagen , Tomografía Computarizada por Rayos X/métodos , Adulto , Humanos , Masculino , Dosis de Radiación
10.
Surgeon ; 13(4): 200-6, 2015 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-24559898

RESUMEN

OBJECTIVE: To audit the management and outcome of penile cancer in a tertiary university teaching hospital, comparing our results to international best practice and published guidelines. METHODS: The Hospital Inpatient Enquiry database of the Mercy University Hospital was interrogated for penile cancer patients treated between 2001 and 2012. Data relating to presentation, local treatment, histology, lymph-node management, outcome and survival was recorded. Data were analysed using the Log Rank test, with significance defined as P ≤ 0.05. RESULTS: Twenty-five patients were identified with a median age of 61 years. The majority of cases at presentation were ≥ T2 (54%) and intermediate to high grade (76%). The median follow-up of patients was 3.75 years (range 9 months-10 years). Overall survival was 76% (n = 19), these patients are all disease free to date. Disease-specific survival was 85% at 10 years. Penile cancer related mortality was 8% (n = 2), 4 patients (16%) died of non-penile cancer related causes. Twenty-two patients (88%) had surgery and 3 patients (12%) had radiotherapy. Based on EAU guidelines inguinal lymph node dissection (ILND) was performed in 64% (n = 16) of cases with 44% (n = 7) of these patients requiring concurrent bilateral pelvic lymph node dissection. Fifty percent (n = 8) of ILNDs showed metastatic disease. Ten year disease-specific survival for node negative versus node positive disease is 100% versus 57%. Thirty-two percent (n = 8) of patients received chemotherapy. CONCLUSIONS: Penile cancer is a rare oncological condition that often requires bilateral inguinal ± pelvic lymph node dissection and should be managed according to published guidelines, in specialist centres in order to maximize outcomes.


Asunto(s)
Adhesión a Directriz , Escisión del Ganglio Linfático , Neoplasias del Pene/patología , Neoplasias del Pene/cirugía , Adulto , Anciano , Bases de Datos Factuales , Ingle , Hospitales Universitarios/normas , Humanos , Ganglios Linfáticos/patología , Ganglios Linfáticos/cirugía , Metástasis Linfática , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Pelvis , Estudios Retrospectivos , Centros de Atención Terciaria/normas
11.
World J Urol ; 32(4): 1067-74, 2014 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-24129893

RESUMEN

INTRODUCTION: The 2005 international society of urological pathology consensus statement on Gleason grading in prostate cancer revised Gleason scoring in clinical practice. The potential for grade migration with this refinement poses difficulties in interpreting historical series. We report the characteristics of a recent cohort of consecutive Gleason score 9 or 10 prostate cancers in our institution. The purpose of this study was to define the clinicopathologic variables and staging information for this high-risk population, and to identify whether traditional prostate staging techniques are adequate for this subcohort of men. MATERIALS AND METHODS: A computational review of our pathology database was performed. Between May 2010 and September 2012, 1,295 consecutive biopsies were undertaken, 168 of which were high-grade tumours (12.97 %). This group were divided into two cohorts of which 84 (12.05 %) had a highest reported Gleason score of 9 (N = 79) or 10 (N = 5) and 84 were reported as Gleason 8. All biopsies were double-reported by pathologists with a special interest in uropathology. RESULTS: Men diagnosed with a Gleason pattern 5 tumour were statistically far more likely to have advanced disease on direct rectal examination of the prostate compared with Gleason sum 8 tumours (p < 0.001) and a positive first-degree family history of prostate cancer (p < 0.001). Overall, Gleason sum 9/10 prostate cancers were also found to be statistically more aggressive than Gleason sum 8 tumours on TRUS core biopsy analysis with significantly higher levels of perineural invasion (p < 0.0001) and extracapsular extension (p = 0.001) as well as a higher levels of tumour found within the core biopsy sample. Those men diagnosed with Gleason pattern 5 prostate cancer also had radiological indicators of increased tumour aggressiveness compared with Gleason sum 8 cancer with respect to bone (p = 0.0002) and visceral (p = 0.044) metastases at presentation. CONCLUSIONS: This series of Gleason score 9/10 prostate cancers serves to highlight the large disease burden, adverse pathologic features, and locally advanced nature of this aggressive subtype, which has previously been under-described in the literature, and differs from historical series in having a large high-grade cohort demonstrating high rates of metastatic disease. A history of prostate cancer amongst first-degree relatives was particularly prevalent in this population raising the issue of screening in a high-risk population. The high incidence of visceral metastatic disease at presentation supports upfront staging with CT thorax, abdomen, and pelvis in patients with Gleason 9 or 10 prostate cancers.


Asunto(s)
Adenocarcinoma/patología , Neoplasias de la Próstata/patología , Centros de Atención Terciaria , Anciano , Biopsia , Humanos , Incidencia , Irlanda , Masculino , Persona de Mediana Edad , Clasificación del Tumor , Metástasis de la Neoplasia , Próstata/patología , Estudios Retrospectivos
12.
J Neurooncol ; 114(1): 149-54, 2013 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-23780645

RESUMEN

Neutrophil-lymphocyte ratio (NLR) is a marker of systemic inflammatory response and its elevation has recently been shown to be a poor prognostic factor in many malignancies including colon, prostate and bladder cancer. The primary aim of this study was to assess the prognostic impact of NLR in a clinically annotated cohort of patients with glioblastoma multiforme (GBM). We hypothesised that elevated NLR would be associated with worse prognosis. Between 2004 and 2009, 137 patients had surgery for GBM and were assessed for consideration of adjuvant therapy at our institution. Of these, 84 patients with an evaluable pre-corticosteroid full blood count result were identified and included in the final analysis. Median overall survival was 9.3 months (range 0.7-82.1). On univariate analysis, age >65 years, gender, ECOG performance status ≥2, frontal tumour, extent of surgical resection, completion of adjuvant chemoradiation protocol and NLR > 4 were significantly correlated with overall survival. Patients with NLR > 4, had a worse median overall survival at 7.5 months versus 11.2 months in patients with NLR ≤ 4 (hazard ratio 1.6, 95 % CI 1.00-2.52, p = 0.048). On multivariate analysis NLR > 4 remained an independent prognostic indicator for poor outcome. These data are an important reminder of the potential relevance of host immunity in GBM. In our cohort, NLR > 4 conferred a worse prognosis independent of other well established prognostic factors. If validated in other cohorts NLR may prove to be a useful addition in predicting prognosis in GBM patients. The demonstration that host immunity plays a role in GBM biology suggests that investigation of emerging therapies which modulate host immune response are warranted in this disease.


Asunto(s)
Neoplasias Encefálicas/mortalidad , Neoplasias Encefálicas/patología , Glioblastoma/mortalidad , Glioblastoma/patología , Linfocitos/patología , Neutrófilos/patología , Adolescente , Adulto , Factores de Edad , Anciano , Recuento de Células Sanguíneas , Supervivencia sin Enfermedad , Femenino , Humanos , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Estadísticas no Paramétricas , Adulto Joven
13.
Fam Cancer ; 12(4): 741-7, 2013 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-23712482

RESUMEN

Genetic testing of an Irish kindred identified an exonic nucleotide substitution c.1664T>C (p.Leu555Pro) in the MLH1 mismatch repair (MMR) gene. This previously unreported variant is classified as a "variant of uncertain significance" (VUS). Immunohistochemical (IHC) analysis and microsatellite instability (MSI) studies, genetic testing, a literature and online MMR mutation database review, in silico phenotype prediction tools, and an in vitro MMR activity assay were used to study the clinical significance of this variant. The MLH1 c.1664T>C (p.Leu555Pro) VUS co-segregated with three cases of classic Lynch syndrome-associated malignancies over two generations, with consistent loss of MLH1 and PMS2 protein expression on IHC, and evidence of the MSI-High mutator phenotype. The leucine at position 555 is well conserved across a number of species, and this novel variant has not been reported as a normal polymorphism in the general population. In silico and in vitro analyses suggest that this variant may have a deleterious effect on the MLH1 protein and abrogate MMR activity. Evidence from clinical, histological, immunohistochemical, and molecular genetic data suggests that MLH1 c.1664T>C (p.Leu555Pro) is likely to be the pathogenic cause of Lynch syndrome in this family.


Asunto(s)
Proteínas Adaptadoras Transductoras de Señales/genética , Adenosina Trifosfatasas/genética , Neoplasias Colorrectales Hereditarias sin Poliposis/genética , Reparación de la Incompatibilidad de ADN/genética , Enzimas Reparadoras del ADN/genética , Proteínas de Unión al ADN/genética , Mutación/genética , Proteínas Nucleares/genética , Proteínas Adaptadoras Transductoras de Señales/metabolismo , Adenosina Trifosfatasas/metabolismo , Adulto , Neoplasias Colorrectales Hereditarias sin Poliposis/patología , Enzimas Reparadoras del ADN/metabolismo , Proteínas de Unión al ADN/metabolismo , Femenino , Estudios de Seguimiento , Humanos , Técnicas para Inmunoenzimas , Masculino , Inestabilidad de Microsatélites , Persona de Mediana Edad , Endonucleasa PMS2 de Reparación del Emparejamiento Incorrecto , Análisis Multivariante , Homólogo 1 de la Proteína MutL , Estadificación de Neoplasias , Proteínas Nucleares/metabolismo , Linaje , Fenotipo , Pronóstico , Adulto Joven
14.
Pharmacogenomics J ; 13(4): 342-8, 2013 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-22491017

RESUMEN

The 5-year survival rate for gastric adenocarcinoma (GA) remains only 40% and biomarkers to identify patients at high risk of tumor recurrence are urgently needed. Secreted protein acidic and rich in cysteine (SPARC) is an extracellular matrix glycoprotein that mediates cell matrix interactions, and upregulation of SPARC can promote tumor progression and metastasis. This study investigated whether single-nucleotide polymorphisms (SNPs) in SPARC impact the prognosis of GA. Blood or formalin-fixed, paraffin-embedded tissues were obtained from 137 GA patients at the University of Southern California and Memorial Sloan-Kettering Cancer Center medical facilities. DNA was isolated and five SNPs in the SPARC 3'-untranslated region (UTR) were evaluated by DNA sequencing or PCR-restriction fragment length polymorphism. Associations between SNPs and time to tumor recurrence (TTR) were analyzed using Kaplan-Meier curves, log-rank tests, and likelihood-ratio test within logistic or Cox regression model as appropriate. Patients carrying at least one G allele of the SPARC rs1059829 polymorphism (GG, AG) showed a median TTR of 3.7 years compared with 2.1 years TTR for patients with AA (hazard ratio (HR) 0.57; P=0.033). In a multivariate analysis adjusted for T and N category as covariates and stratified by race, hospital and chemotherapy, patients with at least one SPARC rs1059829 G allele (GG, AG) remained significantly associated with superior TTR than patients with AA genotype (adjusted P=0.026). In addition, patients harboring the G-A-A haplotype had the highest risk of tumor recurrence (HR 1.892; adjusted P=0.016). Our findings suggest that SPARC 3'-UTR SNPs may be useful in predicting GA patients at increased risk of recurrence.


Asunto(s)
Recurrencia Local de Neoplasia/genética , Osteonectina/genética , Pronóstico , Neoplasias Gástricas/genética , Anciano , Femenino , Predisposición Genética a la Enfermedad , Haplotipos , Humanos , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia/patología , Polimorfismo de Nucleótido Simple , Neoplasias Gástricas/patología
15.
Med Oncol ; 29(2): 1287-91, 2012 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-21390516

RESUMEN

Reversible posterior leukoencephalopathy syndrome (RPLS) is a rare neurologic condition characterised by specific clinical and radiologic findings. It usually manifests subacutely as insidious onset of headache, visual disturbance, altered consciousness and seizures in association with MRI findings of posterior white matter vasogenic oedema. RPLS has been reported in a wide variety of clinical settings. Hypertension, eclampsia, pre-eclampsia, renal impairment, autoimmune conditions and cytotoxic drugs are all cited as aetiologic variables. RPLS, albeit rare, is an important entity for physicians to be aware of as early recognition, and prompt intervention is critical to ensure resolution of the neurological deficit. We describe the case of a 69-year-old lady who collapsed with seizure activity after receiving carboplatin and etoposide chemotherapy for small cell lung cancer. In our opinion, the clinical and radiological courses are typical of RPLS. RPLS has rarely been reported secondary to this chemotherapy regimen, and the purpose of this report is to add to the literature and highlight the association between RPLS and cytotoxic chemotherapy.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Neoplasias Pulmonares/tratamiento farmacológico , Síndrome de Leucoencefalopatía Posterior/inducido químicamente , Carcinoma Pulmonar de Células Pequeñas/tratamiento farmacológico , Anciano , Carboplatino/administración & dosificación , Etopósido/administración & dosificación , Femenino , Humanos , Imagen por Resonancia Magnética , Síndrome de Leucoencefalopatía Posterior/diagnóstico , Síndrome de Leucoencefalopatía Posterior/tratamiento farmacológico , Pronóstico
16.
Ann Oncol ; 22(11): 2431-2439, 2011 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-21382870

RESUMEN

BACKGROUND: Recently, the analysis of gastric and colorectal tumor specimens determined that 78-kiloDalton glucose-regulated protein (GRP78), an endoplasmic reticulum chaperone, up-regulation serves as an efficient mechanism protecting cells against apoptosis and can confer drug resistance. We tested whether functional polymorphisms within the GRP78 gene are related to clinical outcome in gastric and colorectal cancer (CRC) patients. PATIENTS AND METHODS: Blood samples of 234 stage II/III CRC patients at the University of Southern California (USC) and formalin-fixed paraffin-embedded tissues of 137 patients with localized gastric adenocarcinoma (GA) at USC and Memorial Sloan-Kettering Cancer Centers were obtained. GRP78 polymorphisms analyzed on germline DNA were correlated with clinical outcome using univariate and multivariate analyses. RESULTS: GA patients with the combined GRP78 rs391957 C/T and T/T genotype were at higher risk for tumor recurrence and death [hazard ratio (HR) 2.61; P < 0.001 and HR 3.17; P < 0.001, respectively], than those with C/C. These findings were subsequently tested in a CRC cohort where patients with the homozygous T/T genotype were at highest risk for tumor recurrence (HR 2.61; P = 0.015). The results remained significant after adjusting for clinicopathologic determinants. CONCLUSION: These data provide the first evidence that the GRP78 rs391957 polymorphism can predict clinical outcome in localized GA and locally advanced CRC patients.


Asunto(s)
Neoplasias Colorrectales/genética , Proteínas de Choque Térmico/genética , Neoplasias Gástricas/genética , Neoplasias Colorrectales/sangre , Neoplasias Colorrectales/patología , ADN de Neoplasias/sangre , ADN de Neoplasias/genética , Chaperón BiP del Retículo Endoplásmico , Femenino , Pruebas Genéticas , Haplotipos , Humanos , Masculino , Persona de Mediana Edad , Análisis Multivariante , Estadificación de Neoplasias , Polimorfismo de Nucleótido Simple , Pronóstico , Regiones Promotoras Genéticas , Neoplasias Gástricas/sangre , Neoplasias Gástricas/patología , Tasa de Supervivencia
17.
Cancer Treat Rev ; 36(5): 400-9, 2010 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-20117883

RESUMEN

Adenocarcinoma of the esophagogastric junction (AEG) is the most rapidly increasing tumour in the Western world. Most patients present with locally advanced resectable disease and treatment can be curative. However, no accepted standard treatment exists. Cancer specialists frequently differ on optimum treatment strategies. Areas of debate include the aetiology of AEG, TNM staging, type and extent of resection, relative benefits of preoperative chemotherapy versus preoperative chemoradiation (CRT) versus post-operative CRT, use of early PET scan, and integration of targeted therapy. Randomized trials are weakened by underpowered numbers for AEG tumours, and by methodologic flaws. R0 resection and pathologic complete responses (pCR) predict long-term survival, and most treatment strategies target this as a proxy measure of improved outcome. Some preoperative chemotherapy trials show a benefit but the numbers of true AEG tumours in these studies is unclear. The MAGIC study was powered for gastric cancer only, with just 27% of patients having AEG. Compared with chemotherapy alone, preoperative CRT trials show higher rates of pCR. A large randomized study, with significant toxicity, has shown long-term benefit with adjuvant CRT after resection of gastric cancer (20% AEG). An international consensus on the true definition and optimum management of AEG is required. Molecular and imaging biomarkers will play a vital role in future trials. Trimodality therapy is likely to be optimum with surgery shifted to later in the treatment pathway. Rectal cancer provides an analogous paradigm in this regard. As systemic disease is the primary cause of mortality chemosensitivity should be determined early.


Asunto(s)
Adenocarcinoma/terapia , Neoplasias Esofágicas/terapia , Unión Esofagogástrica , Neoplasias Gástricas/terapia , Adenocarcinoma/patología , Terapia Combinada/métodos , Neoplasias Esofágicas/patología , Humanos , Estadificación de Neoplasias , Neoplasias Gástricas/patología , Resultado del Tratamiento
18.
Ann Oncol ; 21(1): 78-86, 2010 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-19622587

RESUMEN

BACKGROUND: Angiogenesis has been attributed to be a well-recognized aspect of human cancer biology. As such, proteinase-activated receptor (PAR)-1, endostatin (ES) and interleukin-8 (IL-8) mediate the regulation of early-onset angiogenesis and in turn impact the process of tumor-growth and disease progression. PATIENTS AND METHODS: Formalin-fixed paraffin-embedded tissues were obtained from 137 patients with localized gastric cancer at University of Southern California and Memorial Sloan-Kettering Cancer Center medical facilities. DNA was extracted and genotyping was carried out using PCR-restriction fragment length polymorphism-based protocols. RESULTS: In false discovery rate-adjusted univariate analysis, PAR-1 -506 ins/del (P < 0.001), ES +4349 G>A (P = 0.004), and IL-8 -251 T>A (P < 0.0001) were associated with time to tumor recurrence (TTR). Further, PAR-1 -506 ins/del and IL-8 -251 were associated with overall survival (OS). After adjusting for covariates, IL-8 remained significantly associated with TTR (adjusted P = 0.003) and OS (adjusted P = 0.049), whereas ES was significantly associated with TTR (adjusted P = 0.026). CONCLUSIONS: Polymorphisms in PAR-1, ES, and IL-8 may serve as independent molecular prognostic markers in patients with localized gastric adenocarcinoma. The assessment of the patients' individual risk on the basis of interindividual genotypes may therefore help to identify patient subgroups at high risk for poor clinical outcome.


Asunto(s)
Adenocarcinoma/genética , Biomarcadores de Tumor/genética , Neovascularización Patológica/genética , Neoplasias Gástricas/genética , Adenocarcinoma/mortalidad , Adenocarcinoma/patología , Endostatinas/genética , Femenino , Genotipo , Humanos , Interleucina-8/genética , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Reacción en Cadena de la Polimerasa , Polimorfismo de Longitud del Fragmento de Restricción , Polimorfismo de Nucleótido Simple , Receptor PAR-1/genética , Neoplasias Gástricas/mortalidad , Neoplasias Gástricas/patología , Resultado del Tratamiento
20.
Ther Adv Med Oncol ; 1(3): 145-65, 2009 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-21789119

RESUMEN

Pre- and peri-operative strategies are becoming standard for the management of localized gastro-esophageal cancer. For localized gastric/gastro-esophageal junction (GEJ) cancer there are conflicting data that a peri-operative approach with cisplatin-based chemotherapy improves survival, with the benefits seen in esophageal cancer likely less than a 5-10% incremental improvement. Further trends toward improvement in local control and survival, when combined chemotherapy and radiation therapy are given pre-operatively, are suggested by recent phase III trials. In fit patients, a significant survival benefit with pre-operative chemoradiation is seen in those patients who achieve a pathologic complete response. In esophageal/GEJ cancer, definitive chemoradiation is now considered in medically inoperable patients. In squamous cell carcinoma of the esophagus, surgery after primary chemoradiation is not clearly associated with an improved overall survival, however, local control may be better. In localized gastric/GEJ cancer, the integration of bevacizumab with pre-operative chemotherapy is being explored in large randomized studies, and with chemoradiotherapy in pilot trials. The addition of anti-epidermal growth factor receptor and anti-human epidermal growth factor receptor-2 antibody treatment to pre-operative chemoradiation continues to be explored. Early results show the integration of targeted therapy is feasible. Metabolic imaging can predict early response to pre-operative chemotherapy and biomarkers may further predict response to pre-operative chemo-targeted therapy. A multimodality approach to localized gastro-esophageal cancer has resulted in better outcomes. For T3 or node-positive disease, surgery alone is no longer considered appropriate and neo-adjuvant therapy is recommended. The future of neo-adjuvant strategies in this disease will involve the individualization of therapy with the integration of molecular signatures, targeted therapy, metabolic imaging and predictive biomarkers.

SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...