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1.
Colorectal Dis ; 21(11): 1270-1278, 2019 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-31389141

RESUMEN

AIM: The incidence of colorectal cancer in the under 50s is increasing. In this national population-based study we aim to show that missed opportunities for diagnosis in primary care are leading to referral delays and emergency diagnoses in young patients. METHOD: We compared the interval before diagnosis, presenting symptom(s) and the odds ratio (OR) of an emergency diagnosis for those under the age of 50 with older patients sourced from the cancer registry with linkage to a national database of primary-care records. RESULTS: The study included 7315 patients, of whom 508 (6.9%) were aged under 50 years, 1168 (16.0%) were aged 50-59, 2294 (31.4%) were aged 60-69 and 3345 (45.7%) were aged 70-79 years. Young patients were more likely to present with abdominal pain and via an emergency, and had the lowest percentage of early stage cancer. They experienced a longer interval between referral and diagnosis (12.5 days) than those aged 60-69, reflecting the higher proportion of referrals via the nonurgent pathway (33.3%). The OR of an emergency diagnosis did not differ with age if a red-flag symptom was noted at presentation, but increased significantly for young patients if the symptom was nonspecific. CONCLUSION: Young patients present to primary care with symptoms outside the national referral guidelines, increasing the likelihood of an emergency diagnosis.


Asunto(s)
Factores de Edad , Neoplasias Colorrectales/diagnóstico , Diagnóstico Tardío/estadística & datos numéricos , Detección Precoz del Cáncer/estadística & datos numéricos , Urgencias Médicas/epidemiología , Atención Primaria de Salud/estadística & datos numéricos , Adulto , Anciano , Neoplasias Colorrectales/epidemiología , Femenino , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Derivación y Consulta/estadística & datos numéricos , Sistema de Registros , Factores de Tiempo
2.
Colorectal Dis ; 21(3): 307-314, 2019 03.
Artículo en Inglés | MEDLINE | ID: mdl-30537049

RESUMEN

AIM: By understanding the reasons for delays in adjuvant chemotherapy (AC) after colonic resection, there is the potential to improve patient outcome. The aim of this study is to determine the extent and impact of complications after hospital discharge on delays to AC. METHOD: The study cohort included patients from Hospital Episode Statistics (HES) who had a colorectal cancer resection; linkage to primary care data was provided by the Clinical Practice Research Datalink (CPRD). Complications during the index hospital stay (from HES) and after discharge (from CPRD) were compared. The risk of late AC treatment (8 weeks or later) following a complication, stoma at the index procedure or emergency admission was described after accounting for age and Charlson score. A Cox hazards model determined the association of these factors with overall survival (OS). RESULTS: A total of 1266 patients underwent AC following colon cancer resection, of whom 598 (47.2%) received treatment within 8 weeks. Patients receiving late AC had a significantly higher proportion of re-operations (7.0% vs 3.3% P < 0.005) and wound infections (5.5% vs 3.7% P = 0.042), with 96% of the latter only being noted in CPRD. In multivariate analysis, the risk of AC delay significantly increased following a complication (OR 1.53, 95% CI 1.16-2.03, P = 0.003) or a stoma at the index operation. AC delay was associated with worse OS [hazard ratio (HR) 1.44, 95% CI 1.16-1.79, P = 0.001], as was an emergency admission (HR 1.59, 95% CI 1.21-1.98, P < 0.0005). However, the presence of a complication did not independently reduce OS (HR 1.15, 95%CI 0.89-1.48, P = 0.295). CONCLUSION: The true extent and impact of complications following colonic resection is underestimated when only secondary care data are used.


Asunto(s)
Quimioterapia Adyuvante/estadística & datos numéricos , Colectomía/efectos adversos , Neoplasias Colorrectales/terapia , Complicaciones Posoperatorias/mortalidad , Tiempo de Tratamiento/estadística & datos numéricos , Anciano , Estudios de Cohortes , Neoplasias Colorrectales/mortalidad , Bases de Datos Factuales , Femenino , Humanos , Masculino , Persona de Mediana Edad , Alta del Paciente/estadística & datos numéricos , Complicaciones Posoperatorias/etiología , Periodo Posoperatorio , Modelos de Riesgos Proporcionales , Reoperación/estadística & datos numéricos , Atención Secundaria de Salud/estadística & datos numéricos , Tasa de Supervivencia , Factores de Tiempo
3.
Dis Esophagus ; 32(10): 1-11, 2019 Dec 13.
Artículo en Inglés | MEDLINE | ID: mdl-30820525

RESUMEN

NICE referral guidelines for suspected cancer were introduced to improve prognosis by reducing referral delays. However, over 20% of patients with esophagogastric cancer experience three or more consultations before referral. In this retrospective cohort study, we hypothesize that such a delay is associated with a worse survival compared with patients referred earlier. By utilizing Clinical Practice Research Datalink, a national primary care linked database, the first presentation, referral date, a number of consultations before referral and stage for esophagogastric cancer patients were determined. The risk of a referral after one or two consultations compared with three or more consultations was calculated for age and the presence of symptom fulfilling the NICE criteria. The risk of death according to the number of consultations before referral was determined, while accounting for stage and surgical management. 1307 patients were included. Patients referred after one (HR 0.80 95% CI 0.68-0.93 p = 0.005) or two consultations (HR 0.81 95% CI 0.67-0.98 p = 0.034) demonstrated significantly improved prognosis compared with those referred later. The risk of death was also lower for patients who underwent a resection, were younger or had an earlier stage at diagnosis. Those presenting with a symptom fulfilling the NICE criteria (OR 0.27 95% CI 0.21-0.35 p < 0.0001) were more likely to be referred earlier. This is the first study to demonstrate an association between a delay in referral and worse prognosis in esophagogastric patients. These findings should prompt further research to reduce primary care delays.


Asunto(s)
Neoplasias Esofágicas/mortalidad , Unión Esofagogástrica , Atención Primaria de Salud/estadística & datos numéricos , Derivación y Consulta/estadística & datos numéricos , Factores de Tiempo , Adulto , Anciano , Bases de Datos Factuales , Femenino , Humanos , Masculino , Persona de Mediana Edad , Pronóstico , Estudios Retrospectivos , Reino Unido/epidemiología
4.
Colorectal Dis ; 17(7): 612-8, 2015 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-25603811

RESUMEN

AIM: One major obstacle in assessing the efficacy of treatment of haemorrhoids and the comparison of trials has been the lack of a standardized, validated symptom severity score. This study aimed to develop an objective, validated symptom-based score of severity for haemorrhoids that can be used to compare treatments, monitor disease and assist in surgical decisions. METHOD: A symptom and quality-of-life questionnaire was developed from the literature in conjunction with expert surgical opinion. The questionnaire was circulated to patients with confirmed haemorrhoids. A statistical model was used to derive a weighted score of symptoms most affecting patients' quality of life. Patients who were offered operative treatment were independently judged by specialists to have more severe symptoms, with further validation of the scoring system against treatment. RESULTS: Forty-five patients were included in final validation analysis, of whom 44 (98%) reported multiple symptoms, the most common being rectal bleeding. Patient-reported effects on quality of life were 47.5 ± 36.3 (1-100 visual analogue scale). Calculated symptom severity scores were used to compare patients receiving operative or ambulatory care, with significant difference in the scores (7.7 ± 3.9 vs 2.8 ± 3.5, P = 0.002) and a receiver operating characteristic area under the curve of 0.842. CONCLUSION: A novel validated score for the assessment of haemorrhoidal disease adopting a standardized global score for symptom severity may have important implications in future for research, assessment and the management of this common pathology.


Asunto(s)
Hemorroides/patología , Índice de Severidad de la Enfermedad , Evaluación de Síntomas/métodos , Adulto , Anciano , Anciano de 80 o más Años , Área Bajo la Curva , Femenino , Hemorroides/complicaciones , Hemorroides/terapia , Humanos , Masculino , Persona de Mediana Edad , Calidad de Vida , Curva ROC , Encuestas y Cuestionarios , Adulto Joven
5.
Clin Otolaryngol ; 40(2): 86-92, 2015 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-25311553

RESUMEN

OBJECTIVES: To assess the reliability, validity and outcomes of Case-based Discussion (CBD) in otolaryngology training. DESIGN: Retrospective database analysis. SETTING: National electronic database. PARTICIPANTS: North London otolaryngology trainees. MAIN OUTCOME MEASURES: We tested the tool's reliability along with its capacity to denote trainee progress. A score was calculated (cS) and compared across core (CT) and specialty trainees (ST) at all levels. The number of items rated as "development required" (D) was also examined. RESULTS: One thousand four hundred and fifty-six CBDs were submitted by 46 trainees from 2007 to 2013, averaging 13.6 per trainee per year. Items relating to knowledge, management and judgement were more popular (98% usage), and better predictors of cS compared to other parameters (rs: +0.74, +0.70 and +0.72, respectively). CBD was found to be reliable (Cronbach's α = 0.848) and highly sensitive (99%), yet not specific. cS was significantly higher in ST than CT (95.3% ± 0.6 versus 88.7% ± 1.3). pS showed a similar pattern (3.15 ± 0.4 versus 2.0 ± 0.05) (P < 0.001). cS and pS increased from CT1 to ST8 (rs: +0.60 and +0.34, respectively). The number of D-rated items decreased with increasing year of training. CONCLUSION: Case-based discussion is a reliable and valid tool in otolaryngology training. It is highly sensitive but not specific. Trainees should be encouraged to use it at all levels.


Asunto(s)
Competencia Clínica , Otolaringología/educación , Aprendizaje Basado en Problemas/organización & administración , Rondas de Enseñanza/métodos , Toma de Decisiones Clínicas , Comunicación , Control de Formularios y Registros , Humanos , Liderazgo , Evaluación de Necesidades , Curva ROC , Reproducibilidad de los Resultados , Estudios Retrospectivos , Reino Unido
6.
Br J Surg ; 101(11): 1373-82; discussion 1382, 2014 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-25146918

RESUMEN

BACKGROUND: Postoperative pain is an important adverse event following inguinal hernia repair. The aim of this trial was to compare postoperative pain within the first 3 months and 1 year after surgery in patients undergoing open mesh inguinal hernia repair using either a self-gripping lightweight polyester mesh or a polypropylene lightweight mesh fixed with sutures. METHODS: Adult men undergoing Lichtenstein repair for primary inguinal hernia were randomized to ProGrip™ self-gripping mesh or standard sutured lightweight polypropylene mesh. RESULTS: In total 557 men were included in the final analysis (self-gripping mesh 270, sutured mesh 287). Early postoperative pain scores were lower with self-gripping mesh than with sutured lightweight mesh: mean visual analogue pain score relative to baseline +1·3 and +8·6 respectively at discharge (P = 0·033), and mean surgical pain scale score relative to baseline +4·2 and +9·7 respectively on day 7 (P = 0·027). There was no significant difference in mid-term (1 month) and long-term (3 months and 1 year) pain scores between the groups. Surgery was significantly quicker with self-gripping mesh (mean difference 7·6 min; P < 0·001). There were no significant differences in reported mesh handling, analgesic consumption, other wound complications, patient satisfaction or hernia recurrence between the groups. CONCLUSION: Self-gripping mesh for open inguinal hernia repair was well tolerated and reduced early postoperative pain (within the first week), without increasing the risk of early recurrence. It did not reduce chronic pain. REGISTRATION NUMBER: NCT00827944 (http://www.clinicaltrials.gov).


Asunto(s)
Hernia Inguinal/cirugía , Herniorrafia/métodos , Mallas Quirúrgicas , Análisis de Varianza , Humanos , Complicaciones Intraoperatorias/etiología , Masculino , Persona de Mediana Edad , Tratamientos Conservadores del Órgano , Dolor Postoperatorio/etiología , Polipropilenos/uso terapéutico , Técnicas de Sutura , Suturas , Traumatismos del Sistema Nervioso/complicaciones , Resultado del Tratamiento
7.
Int J Colorectal Dis ; 29(5): 631-8, 2014 May.
Artículo en Inglés | MEDLINE | ID: mdl-24599298

RESUMEN

BACKGROUND: Shortened postgraduate surgical training reforms, known as Calman, have altered delivery of surgical training in the UK with reduced working hours and training time aiming to produce a more subspecialised workforce. AIMS: This study aims to compare rectal cancer surgical outcomes of Calman-trained consultants in a single institution to published data. Additionally, the study compared colorectal cancer surgical outcome between Calman-trained consultants (CTCs) and non-Calman consultants (NCTCs) in a national dataset. METHODS: Local dataset Clinicopathological outcome of rectal cancer resection undertaken by CTCs in a single institution (2006-2010) were compared against NCTC counterparts. National dataset All elective colorectal cancer resections between 2004 and 2008 in English NHS hospitals were included. CTCs (present from 2004 onwards) were compared to NCTCs (present prior to 2004). Outcome measures included 30-day in-hospital mortality, reoperation and readmission rates. RESULTS: Local dataset One hundred thirteen patients were operated under five CTC. The 30-day in-hospital mortality for CTCs (1%) was favourable compared to published rates (3-5%). Local recurrence rate (4.4%) was comparable to NCTC (3.6%). National dataset Between 2004 and 2008, 44,106 patients underwent elective colorectal resection. Multiple regression demonstrated CTC patients had a reduced length of stay and reduced reoperation rate. No difference in mortality and unplanned readmission rates were seen. CONCLUSION: CTCs have similar safety outcome to NCTCs for colorectal cancer resection procedures. Further work is needed to assess the impact of further training reductions on clinical outcome.


Asunto(s)
Neoplasias Colorrectales/cirugía , Cirugía Colorrectal/educación , Educación de Postgrado en Medicina/métodos , Evaluación de Resultado en la Atención de Salud , Adulto , Anciano , Anciano de 80 o más Años , Neoplasias Colorrectales/patología , Procedimientos Quirúrgicos Electivos , Femenino , Mortalidad Hospitalaria , Humanos , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia , Readmisión del Paciente , Sistema de Registros , Reoperación , Reino Unido
8.
Colorectal Dis ; 16(6): O197-205, 2014 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-24344746

RESUMEN

AIM: Up to a quarter of patients with rectal cancer have synchronous liver metastases at the time of diagnosis. This is a predictor of poor outcome. There are no standardized guidelines for treatment. We reviewed the outcomes of our patients with synchronous rectal liver metastases treated with a curative intent by neoadjuvant chemotherapy with or without chemoradiotherapy followed by resection of the primary tumour and then liver metastases. METHOD: Between 2004 and 2012, patients who presented with rectal cancer and synchronous liver metastasis were treated with curative intent with peri-operative systemic chemotherapy as the first line of treatment. Responders to chemotherapy underwent resection of the primary tumour with or without preoperative chemoradiotherapy followed by hepatic resection. RESULTS: Fifty-three rectal cancer patients with 152 synchronous liver lesions were identified. After a median follow-up of 29.6 months, the median survival was 41.4 months. Overall survival was 59.0% at 3 years and 39.0% at 5 years. CONCLUSION: Rectal resection before hepatic resection combined with neoadjuvant chemotherapy is associated with promising clinical outcome. It allows downstaging of liver lesions and removal of the primary tumour before the progression of further micrometastases. Furthermore, patients who do not respond to chemotherapy can be identified and may avoid major surgical intervention.


Asunto(s)
Antineoplásicos/uso terapéutico , Neoplasias Hepáticas/terapia , Cuidados Preoperatorios/métodos , Neoplasias del Recto/terapia , Adulto , Anciano , Colectomía , Diagnóstico por Imagen , Femenino , Estudios de Seguimiento , Hepatectomía , Humanos , Neoplasias Hepáticas/mortalidad , Neoplasias Hepáticas/patología , Masculino , Persona de Mediana Edad , Terapia Neoadyuvante/métodos , Estadificación de Neoplasias , Neoplasias del Recto/diagnóstico , Neoplasias del Recto/secundario , Estudios Retrospectivos , Tasa de Supervivencia/tendencias , Resultado del Tratamiento , Reino Unido/epidemiología
9.
Clin Otolaryngol ; 39(3): 169-73, 2014 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-24801272

RESUMEN

BACKGROUND: UK surgical trainees are required to undertake work-based assessments each year in order to progress in their training. Direct Observation of Procedural Skills (DOPS) is one of these assessments. We aim to investigate the validity of DOPS in assessing otolaryngology trainees at all levels. METHODS: A retrospective search of the portfolios of all otolaryngology trainees in North Thames was carried out to identify otolaryngology-specific DOPS. A score (Cs) was calculated for each DOPS based on the percentage of satisfactorily-rated items. The overall performance rating (Ps) was analysed as a separate variable and compared with Cs. The Ps and Cs results were then compared across trainee grades and levels within each grade: Core trainees (CT1-CT2) and specialty trainees (ST3-ST8). RESULTS: Seven hundred and sixty-seven otolaryngology DOPS were completed between August 2008 and September 2013. The tool was found to be reliable and internally consistent. Trainees in ST grade had higher Cs and Ps scores than CT grade (P < 0.001). Pairwise comparison showed that both Cs and Ps increased from CT1 to ST3 (P = 0.005) but not from ST4 onwards (P = 0.198). CONCLUSIONS: Otolaryngology DOPS is a useful tool in assessing otolaryngology trainees especially from CT1-ST3 level. DOPS can also differentiate between junior and senior trainees. However, it was not able to demonstrate progress at levels above ST3, most likely due to the simplicity of the procedures which trainees tend to master in the first few years of training.


Asunto(s)
Competencia Clínica , Educación Médica Continua/métodos , Docentes Médicos/normas , Otolaringología/educación , Evaluación Educacional , Humanos , Estudios Retrospectivos , Encuestas y Cuestionarios
10.
Colorectal Dis ; 15(6): e284-94, 2013 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-23489678

RESUMEN

AIM: Doppler-guided haemorrhoidal artery ligation (DGHL) has experienced wider uptake and has recently received National Institute for Health and Clinical Excellence (NICE) approval in the UK. A systematic review of the literature was conducted to assess its safety and efficacy. METHOD: This review was conducted in keeping with PRISMA guidelines. MEDLINE, EMBASE, Google Scholar and Cochrane Library databases were searched. Studies describing DGHL as a primary procedure and reporting clinical outcome were considered. Primary end-points were recurrence and postoperative pain. Secondary end-points included operation time, complications and reintervention rates. Studies were scored for quality with either Jadad score or NICE scoring guidelines. RESULTS: Twenty-eight studies including 2904 patients were included in the final analysis. They were of poor overall quality. Recurrence ranged between 3% and 60% (pooled recurrence rate 17.5%), with the highest rates for grade IV haemorrhoids. Postoperative analgesia was required in 0-38% of patients. Overall postoperative complication rates were low, with an overall bleeding rate of 5% and an overall reintervention rate of 6.4%. The operation time ranged from 19 to 35 min. CONCLUSION: DGHL is safe and efficacious with a low level of postoperative pain. It can be safely considered for primary treatment of grade II and III haemorrhoids.


Asunto(s)
Arterias/cirugía , Hemorroides/cirugía , Ultrasonografía Doppler , Humanos , Ligadura/métodos , Cirugía Asistida por Computador/métodos , Oclusión Terapéutica/métodos , Resultado del Tratamiento
11.
J Public Health (Oxf) ; 34(1): 138-48, 2012 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-21795302

RESUMEN

INTRODUCTION: Routinely collected data sets are increasingly used for research, financial reimbursement and health service planning. High quality data are necessary for reliable analysis. This study aims to assess the published accuracy of routinely collected data sets in Great Britain. METHODS: Systematic searches of the EMBASE, PUBMED, OVID and Cochrane databases were performed from 1989 to present using defined search terms. Included studies were those that compared routinely collected data sets with case or operative note review and those that compared routinely collected data with clinical registries. RESULTS: Thirty-two studies were included. Twenty-five studies compared routinely collected data with case or operation notes. Seven studies compared routinely collected data with clinical registries. The overall median accuracy (routinely collected data sets versus case notes) was 83.2% (IQR: 67.3-92.1%). The median diagnostic accuracy was 80.3% (IQR: 63.3-94.1%) with a median procedure accuracy of 84.2% (IQR: 68.7-88.7%). There was considerable variation in accuracy rates between studies (50.5-97.8%). Since the 2002 introduction of Payment by Results, accuracy has improved in some respects, for example primary diagnoses accuracy has improved from 73.8% (IQR: 59.3-92.1%) to 96.0% (IQR: 89.3-96.3), P= 0.020. CONCLUSION: Accuracy rates are improving. Current levels of reported accuracy suggest that routinely collected data are sufficiently robust to support their use for research and managerial decision-making.


Asunto(s)
Codificación Clínica/normas , Alta del Paciente/normas , Medicina Estatal/normas , Codificación Clínica/estadística & datos numéricos , Bases de Datos Bibliográficas , Humanos , Alta del Paciente/estadística & datos numéricos , Sistema de Registros , Reproducibilidad de los Resultados , Medicina Estatal/estadística & datos numéricos , Reino Unido
12.
Br J Cancer ; 102(9): 1327-34, 2010 Apr 27.
Artículo en Inglés | MEDLINE | ID: mdl-20389297

RESUMEN

BACKGROUND: The role of adjuvant chemotherapy after resection of colorectal cancers (CRCs) is well understood for patients with stage-I or stage-III disease. Its efficacy for those with stage-II disease remains much less clear. Many investigators have sought to identify prognostic markers that might clarify which patients have the highest risk of recurrence and would, therefore, be most likely to benefit from chemotherapy. This systematic review examines evidence for the use of peripherally sampled, circulating tumour cells (CTCs) as such a prognostic marker. METHODS: A comprehensive literature search was used to identify studies reporting on the significance of CTCs in the postoperative blood of CRC patients. RESULTS: Fourteen studies satisfied the inclusion criteria. Six of the nine studies that took blood samples 24 h or more postoperatively found detection of postoperative CTCs to be an independent predictor of cancer recurrence. CONCLUSION: The presence of CTCs in peripheral blood at least 24 h after resection of CRCs is an independent prognostic marker of recurrence. Further studies are needed to clarify the optimal time point for blood sampling and determine the benefit of chemotherapy in CTC-positive patients with stage-II disease.


Asunto(s)
Neoplasias Colorrectales/cirugía , Pronóstico , Anciano , Antígeno Carcinoembrionario/análisis , Quimioterapia Adyuvante/métodos , Neoplasias Colorrectales/sangre , Neoplasias Colorrectales/diagnóstico , Neoplasias Colorrectales/tratamiento farmacológico , Neoplasias Colorrectales/patología , Humanos , Queratinas/análisis , Persona de Mediana Edad , Recurrencia Local de Neoplasia/patología , Recurrencia Local de Neoplasia/cirugía , Estadificación de Neoplasias , Selección de Paciente , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/patología , Recurrencia , Resultado del Tratamiento
13.
Br J Cancer ; 103(12): 1858-69, 2010 Dec 07.
Artículo en Inglés | MEDLINE | ID: mdl-21063399

RESUMEN

BACKGROUND: recent decades have seen combination chemoradiotherapy become the standard treatment for anal squamous cell carcinoma (SCC). However, the burden of this disease continues to rise, with only 10% of patients with metastatic disease surviving >2 years. Further insight into tumour characteristics and molecular biology may identify novel therapeutic targets. This systematic review examines current prognostic markers in SCC of the anus. METHODS: an extensive literature search was performed to identify studies reporting on biomarkers in anal cancer in the context of clinical outcome following treatment primarily with chemoradiotherapy. RESULTS: in all, 21 studies were included. A total of 29 biomarkers were studied belonging to 9 different functional classes. Of these biomarkers, 13 were found to have an association with outcome in at least one study. The tumour-suppressor genes p53 and p21 were the only markers shown to be of prognostic value in more than one study. CONCLUSIONS: an array of biomarkers have been identified that correlate with survival following chemoradiotherapy in anal cancer. However, investigators are yet to identify a biomarker that has the ability to consistently predict outcome in this disease. Further studies are needed to elucidate whether these candidate biomarkers demonstrate their optimum value when they serve as targets for new therapeutic strategies.


Asunto(s)
Neoplasias del Ano/mortalidad , Biomarcadores de Tumor , Carcinoma de Células Escamosas/mortalidad , Neoplasias del Ano/genética , Neoplasias del Ano/patología , Apoptosis , Biomarcadores de Tumor/análisis , Carcinoma de Células Escamosas/genética , Carcinoma de Células Escamosas/patología , Inhibidor p21 de las Quinasas Dependientes de la Ciclina/análisis , Inhibidor p27 de las Quinasas Dependientes de la Ciclina , Genes Supresores de Tumor , Genes p53 , Humanos , Péptidos y Proteínas de Señalización Intracelular/análisis , Pronóstico
14.
Br J Surg ; 96(9): 1086-93, 2009 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-19672934

RESUMEN

BACKGROUND: Training within a proficiency-based virtual reality (VR) curriculum may reduce errors during real surgical procedures. This study used a scientific methodology for development of a VR training curriculum for laparoscopic cholecystectomy. METHODS: Inexperienced (had performed fewer than ten laparoscopic cholecystectomies), intermediate (20-50) and experienced (more than 100) surgeons were recruited. Construct validity was defined as the ability to differentiate between the three levels of experience, based on simulator-derived metrics for nine basic skills, four procedural tasks and full laparoscopic cholecystectomy on a high-fidelity VR simulator. Inexperienced subjects performed ten repetitions for learning curve analysis. Proficiency measures were based on the performance of experienced surgeons. RESULTS: Thirty inexperienced, 11 intermediate and 16 experienced operators were recruited. Eight of nine basic skills and three of four procedural tasks were found to be construct valid. The full procedure revealed significant intergroup differences for time (1541, 673 and 816 s; P = 0.002), movements (1021, 595 and 638; P = 0.006) and path length (2038, 1235 and 1303 cm; P = 0.033). Learning curves plateaued between the second and ninth sessions. CONCLUSION: This study shows that it is possible to define and develop a whole-procedure VR training curriculum for laparoscopic cholecystectomy using structured scientific methodology.


Asunto(s)
Colecistectomía Laparoscópica/educación , Competencia Clínica/normas , Simulación por Computador , Educación de Postgrado en Medicina/métodos , Cirugía General/educación , Curriculum , Humanos , Enseñanza/métodos
15.
Eur J Vasc Endovasc Surg ; 37(5): 544-56, 2009 May.
Artículo en Inglés | MEDLINE | ID: mdl-19233691

RESUMEN

OBJECTIVES: There is lack of consensus regarding concurrent vs. staged approaches, and the prioritisation of staged procedures in cases presenting with colorectal carcinoma (CRC) and abdominal aortic aneurysm (AAA) synchronously. We aim to present our experience, review the literature on this therapeutic dilemma and examine the role of endovascular aortic repair (EVAR). DESIGN, MATERIALS AND METHODS: An observational study of the experience of two centres and a systematic review of the published literature. RESULTS: Twenty-four patients were identified from the prospective databases of two tertiary referral centres between 2001 and 2006. Intervention for both malignancy and aneurysm was performed in 13 patients. In 10 patients, cancer resection was performed initially and was followed by open aneurysm repair (n=3) or EVAR (n=7). Two patients (AAA diameters: 7.0 and 8.0cm) underwent EVAR prior to colonic resection. One patient was selected for synchronous surgery. There were no interval AAA ruptures, graft infection or postoperative mortalities. Literature review identified 269 such cases; of these 101 were treated by combined surgery. In staged surgery, there were nine interval aneurysmal ruptures and one aortic graft infection. CONCLUSIONS: In our experience, staged management can be undertaken, without interval aneurysmal rupture. EVAR has an evolving role in preventing delay in CRC management, in high-risk patients, and during combined intervention.


Asunto(s)
Aneurisma de la Aorta Abdominal/complicaciones , Neoplasias Colorrectales/complicaciones , Complicaciones Intraoperatorias/epidemiología , Complicaciones Posoperatorias/epidemiología , Anciano , Anciano de 80 o más Años , Aneurisma de la Aorta Abdominal/diagnóstico , Aneurisma de la Aorta Abdominal/cirugía , Rotura de la Aorta/epidemiología , Colectomía/métodos , Neoplasias Colorrectales/diagnóstico , Neoplasias Colorrectales/cirugía , Femenino , Estudios de Seguimiento , Humanos , Tiempo de Internación , Masculino , Persona de Mediana Edad , Morbilidad/tendencias , Estadificación de Neoplasias/métodos , Pronóstico , Estudios Prospectivos , Tasa de Supervivencia/tendencias , Tomografía Computarizada por Rayos X , Reino Unido/epidemiología , Procedimientos Quirúrgicos Vasculares/métodos
16.
Mini Rev Med Chem ; 7(5): 509-17, 2007 May.
Artículo en Inglés | MEDLINE | ID: mdl-17504186

RESUMEN

Recent evidence has suggested improved outcomes following incorporation of intraperitoneal chemotherapy administration with intravenous systemic chemotherapy as first-line treatment of small volume residual epithelial ovarian cancer. This review focuses on the mechanism of actions of the chemotherapeutic drugs and reviews the possible reasons for the superior outcomes of intraperitoneal chemotherapy.


Asunto(s)
Antineoplásicos/administración & dosificación , Carcinoma/tratamiento farmacológico , Infusiones Parenterales , Neoplasias Ováricas/tratamiento farmacológico , Contraindicaciones , Femenino , Humanos , Infusiones Parenterales/efectos adversos , Resultado del Tratamiento
18.
J Visc Surg ; 154(5): 313-320, 2017 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-28642083

RESUMEN

BACKGROUND: The aim was to determine whether a simulation-based care pathway approach (CPA) curriculum could improve compliance for enhanced recovery programs (ERP), and residents' participation in laparoscopic colorectal surgery (LCS). Indeed, trainee surgeons have limited access to LCS as primary operator, and ERP have improved patients' outcomes in colorectal surgery (CS). METHODS: All residents of our department were trained in a simulation-based CPA: perioperative training consisted in virtual patients built according to guidelines in both ERP and CS, whilst intraoperative training involved a virtual reality simulator curriculum. Twenty consecutive patients undergoing CS were prospectively included before (n=10) and after (n=10) the training. All demographic and perioperative data were prospectively collected, including compliance for ERP. Residents' participation as primary operator in LCS was measured. RESULTS: Five residents (PGY 4-7) were enrolled. None had performed LCS as primary operator. Overall satisfaction and usefulness were both rated 4.5/5, usefulness of pre-, post- and intraoperative training was rated 5/5, 4.5/5 and 4/5, respectively. Residents' participation in LCS significantly improved after the training (0% (0-100) vs. 82.5% (10-100); P=0.006). Pre- and intraoperative data were comparable between groups. Postoperative morbidity was also comparable. Compliance for ERP improved at Day 2 in post-training patients (3 (30%) vs. 8 (80%); P=0.035). Length of stay was not modified. CONCLUSIONS: A simulated CPA curriculum to training in LCS and ERP was correctly implemented. It seemed to improve compliance for ERP, and promoted residents participation as primary operator without adversely altering patients' outcomes.


Asunto(s)
Competencia Clínica , Cirugía Colorrectal/educación , Ambulación Precoz , Entrenamiento Simulado/métodos , Estudios de Cohortes , Vías Clínicas , Curriculum , Educación de Postgrado en Medicina/métodos , Femenino , Humanos , Internado y Residencia , Masculino , Estudios Prospectivos , Recuperación de la Función , Reino Unido
19.
J Clin Pathol ; 59(5): 454-9, 2006 May.
Artículo en Inglés | MEDLINE | ID: mdl-16461806

RESUMEN

The role of the pathologist in the preoperative diagnosis of phyllodes tumours of the breast is critical to appropriate surgical planning. However, reliable differentiation of phyllodes tumour from cellular fibroadenoma remains difficult. Preoperative diagnostic accuracy allows correct surgical treatment, avoiding the pitfalls of reoperation because of inadequate excision, or surgical overtreatment. Specific clinical indices may arouse diagnostic suspicion but are unreliable for confirmation, as with current imaging modes. Fine needle aspiration cytology has a high false negative rate. Few studies have evaluated the role of core needle biopsy, but it may prove a useful adjunct. Both diagnostic and prognostic information may in future be gained from application of immunohistochemical and other techniques assessing the expression of proliferative markers including p53, Ki-67, and others.


Asunto(s)
Neoplasias de la Mama/patología , Mama/patología , Tumor Filoide/patología , Adulto , Factores de Edad , Biopsia/métodos , Diagnóstico Diferencial , Femenino , Fibroadenoma/patología , Humanos , Selección de Paciente
20.
Surg Endosc ; 20(7): 1036-44, 2006 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-16715212

RESUMEN

BACKGROUND: The role of laparoscopic surgery for patients with ileocecal Crohn's disease is a contentious issue. This metaanalysis aimed to compare open resection with laparoscopically assisted resection for ileocecal Crohn's disease. METHODS: A literature search of the Medline, Ovid, Embase, and Cochrane databases was performed to identify comparative studies reporting outcomes for both laparoscopic and open ileocecal resection. Metaanalytical techniques were applied to identify differences in outcomes between the two groups. Sensitivity analysis was undertaken to evaluate the heterogeneity of the study. RESULTS: Of 20 studies identified by literature review, 15 satisfied the criteria for inclusion in the study. These included outcomes for 783 patients, 338 (43.2%) of whom had undergone laparoscopic resection, with an overall conversion rate to open surgery of 6.8%. The operative time was significantly longer in the laparoscopic group, by 29.6 min (p = 0.002), although the blood loss and complications in the two groups were similar. In terms of postoperative recovery, the laparoscopic patients had a significantly shorter time for recovery of their enteric function and a shorter hospital stay, by 2.7 days (p < 0.001). CONCLUSIONS: For selected patients with noncomplicated ileocecal Crohn's disease, laparoscopic resection offered substantial advantages in terms of more rapid resolution of postoperative ileus and shortened hospital stay. There was no increase in complications, as compared with open surgery. The contraindications to laparoscopic approaches for Crohn's disease remain undefined.


Asunto(s)
Enfermedad de Crohn/cirugía , Válvula Ileocecal/cirugía , Laparoscopía , Procedimientos Quirúrgicos del Sistema Digestivo/métodos , Humanos
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