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1.
Tech Coloproctol ; 27(12): 1169-1181, 2023 12.
Artigo em Inglês | MEDLINE | ID: mdl-37548782

RESUMO

INTRODUCTION: Enhanced recovery after surgery (ERAS) programmes which advocate early mobility after surgery have improved immediate clinical outcomes for patients undergoing abdominal cancer resections with curative intent. However, the impact of continued physical activity on patient-related outcomes and functional recovery is not well defined. The aim of this review was to assess the impact of postoperative aerobic exercise training, either alone or in conjunction with another exercise modality, on patients who have had surgery for intra-abdominal cancer. METHODS: A literature search was performed of electronic journal databases. Eligible papers needed to report an outcome of aerobic capacity in patients older than 18 years of age, who underwent cancer surgery with curative intent and participated in an exercise programme (not solely ERAS) that included an aerobic exercise component starting at any point in the postoperative pathway up to 12 weeks. RESULTS: Eleven studies were deemed eligible for inclusion consisting of two inpatient, one mixed inpatient/outpatient and eight outpatient studies. Meta-analysis of four outpatient studies, each reporting change in 6-min walk test (6MWT), showed a significant improvement in 6MWT with exercise (MD 74.92 m, 95% CI 48.52-101.31 m). The impact on health-related quality of life was variable across studies. CONCLUSION: Postoperative exercise confers benefits in improving aerobic function post surgery and can be safely delivered in various formats (home-based or group/supervised).


Assuntos
Neoplasias , Qualidade de Vida , Humanos , Lactente , Exercício Físico , Tolerância ao Exercício , Pacientes Internados
2.
Br J Surg ; 107(10): 1289-1298, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32335905

RESUMO

BACKGROUND: To achieve completion of training in general surgery, trainees are required to demonstrate competency in common procedures performed at emergency laparotomy. The aim of this study was to describe the patterns of trainee-led emergency laparotomy operating and the association between postoperative outcomes. METHODS: Data on all patients who had an emergency laparotomy between December 2013 and November 2017 were extracted from the National Emergency Laparotomy Audit database. Patients were grouped by grade of operating surgeon: trainee (specialty registrar) or consultant (including post-Certificate of Completion of Training fellows). Trends in trainee operating by deanery, hospital size and time of day of surgery were investigated. Univariable and adjusted regression analyses were performed for the outcomes 90-day mortality and return to theatre, with analysis of patients in operative subgroups segmental colectomy, Hartmann's procedure, adhesiolysis and repair of perforated peptic ulcer disease. RESULTS: The study cohort included 87 367 patients. The 90-day mortality rate was 15·1 per cent in the consultant group compared with 11·0 per cent in the trainee group. There were no increased odds of death by 90 days or of return to theatre across any of the operative groups when the operation was performed with a trainee listed as the most senior surgeon in theatre. Trainees were more likely to operate independently in high-volume centres (highest- versus lowest-volume centres: odds ratio (OR) 2·11, 95 per cent c.i. 1·91 to 2·33) and at night (00.00 to 07.59 versus 08.00 to 11.59 hours; OR 3·20, 2·95 to 3·48). CONCLUSION: There is significant variation in trainee-led operating in emergency laparotomy by geographical area, hospital size and by time of day. However, this does not appear to influence mortality or return to theatre.


ANTECEDENTES: Para completar la formación en cirugía general, se requiere que los aspirantes demuestren solvencia en la práctica de los procedimientos comunes efectuados por laparotomía de urgencia. El objetivo de este estudio fue describir los esquemas de formación de los aspirantes en laparotomía de urgencia y su asociación con los resultados postoperatorios. MÉTODOS: Todos los pacientes a los que se realizó una laparotomía de urgencia entre diciembre del 2013 y noviembre del 2017 se obtuvieron a partir de la base de datos de la Auditoría Nacional de Laparotomía de Urgencia (National Emergency Laparotomy Audit, NELA). Los pacientes se agruparon según la experiencia del cirujano; cirujanos en periodo de formación (residentes, speciality registrar) o consultores (incluyendo los que habían completado la especialidad). Se investigaron las tendencias entre los residentes por universidad, tamaño del hospital y hora del día de la cirugía. Se realizaron análisis de regresión univariable y ajustados para la mortalidad a los 90 días y la reoperación, así como análisis de subgrupos para los procedimientos quirúrgicos de colectomía segmentaria, intervención de Hartmann, liberación de bridas y la sutura de una úlcera péptica perforada. RESULTADOS: La cohorte de estudio incluyó 87.367 pacientes. La mortalidad a los 90 días en el grupo de consultores fue del 15% en comparación con el 11% en el grupo de residentes. No hubo aumento del riesgo de mortalidad a los 90 días o de reoperación en ninguno de los subgrupos de las diferentes operaciones cuando la cirugía era efectuada por el residente considerado como el más senior en las listas de quirófano. Los residentes tenían más probabilidades de operar solos en centros de alto volumen (en comparación con centros de bajo volumen; razón de oportunidades, odds ratio (OR) 2,11, i.c. del 95% 1,91-2,33) o durante la noche (00:00-07:59 horas en comparación con 08:00-11:59; OR 3,20; i.c. del 95% 2,95-3,48). CONCLUSIÓN: Existen diferencias significativas en la formación que reciben los residentes en laparotomía de urgencia según el área geográfica, el tamaño del hospital y la hora del día. Sin embargo, estas diferencias no parecen afectar a la mortalidad ni a la tasa de reoperaciones.


Assuntos
Emergências , Internato e Residência , Laparotomia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Inglaterra , Feminino , Cirurgia Geral/educação , Hospitais com Alto Volume de Atendimentos/estatística & dados numéricos , Humanos , Tempo de Internação/estatística & dados numéricos , Masculino , Pessoa de Meia-Idade , Assistência Noturna/estatística & dados numéricos , Reoperação/estatística & dados numéricos , Procedimentos Cirúrgicos Operatórios/estatística & dados numéricos , País de Gales , Adulto Jovem
3.
World J Surg ; 44(3): 869-875, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-31664496

RESUMO

BACKGROUND: Delay to theatre for patients with intra-abdominal sepsis is cited as a particular risk factor for death. Our aim was to evaluate the potential relationship between hourly delay from admission to surgery and post-operative mortality in patients with perforated peptic ulcer (PPU). METHODS: All patients entered in the National Emergency Laparotomy Audit who had an emergency laparotomy for PPU within 24 h of admission from December 2013 to November 2017 were included. Time to theatre from admission was modelled as a continuous variable in hours. Outcome was 90-day mortality. Logistic regression adjusting for confounding factors was performed. RESULTS: 3809 patients were included, and 90-day mortality rate was 10.61%. Median time to theatre was 7.5 h (IQR 5-11.6 h). The odds of death increased with time to operation once adjustment for confounding variables was performed (per hour after admission adjusted OR 1.04 95% CI 1.02-1.07). In patients who were physiologically shocked (N = 334), there was an increase of 6% in risk-adjusted odds of mortality for every hour Em Lap was delayed after admission (OR 1.06 95% CI 1.01-1.11). CONCLUSION: Hourly delay to theatre in patients with PPU is independently associated with risk of death by 90 days. Therefore, we suggest that surgical source control should occur as soon as possible after admission regardless of time of day.


Assuntos
Laparotomia , Úlcera Péptica Perfurada/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Emergências , Feminino , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Úlcera Péptica Perfurada/mortalidade , Fatores de Risco , Tempo para o Tratamento
4.
Br J Surg ; 106(7): 940-948, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-31021420

RESUMO

BACKGROUND: Approximately 30 000 emergency laparotomies are performed each year in England and Wales. Patients with pathology of the gastrointestinal tract requiring emergency laparotomy are managed by general surgeons with an elective special interest focused on either the upper or lower gastrointestinal tract. This study investigated the impact of special interest on mortality after emergency laparotomy. METHODS: Adult patients having emergency laparotomy with either colorectal or gastroduodenal pathology were identified from the National Emergency Laparotomy Audit database and grouped according to operative procedure. Outcomes included all-cause 30-day mortality, length of hospital stay and return to theatre. Logistic and Poisson regression were used to analyse the association between consultant special interest and the three outcomes. RESULTS: A total of 33 819 patients (28 546 colorectal, 5273 upper gastrointestinal (UGI)) were included. Patients who had colorectal procedures performed by a consultant without a special interest in colorectal surgery had an increased adjusted 30-day mortality risk (odds ratio (OR) 1·23, 95 per cent c.i. 1·13 to 1·33). Return to theatre also increased in this group (OR 1·13, 1·05 to 1·20). UGI procedures performed by non-UGI special interest surgeons carried an increased adjusted risk of 30-day mortality (OR 1·24, 1·02 to 1·53). The risk of return to theatre was not increased (OR 0·89, 0·70 to 1·12). CONCLUSION: Emergency laparotomy performed by a surgeon whose special interest is not in the area of the pathology carries an increased risk of death at 30 days. This finding potentially has significant implications for emergency service configuration, training and workforce provision, and should stimulate discussion among all stakeholders.


Assuntos
Competência Clínica/estatística & dados numéricos , Gastroenterologia , Cirurgia Geral , Laparotomia/mortalidade , Especialização , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Bases de Dados Factuais , Emergências , Inglaterra/epidemiologia , Feminino , Humanos , Modelos Logísticos , Masculino , Auditoria Médica , Pessoa de Meia-Idade , Razão de Chances , Distribuição de Poisson , Estudos Prospectivos , Fatores de Risco , País de Gales/epidemiologia , Adulto Jovem
5.
Anaesthesia ; 74(6): 758-764, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-30793278

RESUMO

Demand for critical care among older patients is increasing in many countries. Assessment of frailty may inform discussions and decision making, but acute illness and reliance on proxies for history-taking pose particular challenges in patients who are critically ill. Our aim was to investigate the inter-rater reliability of the Clinical Frailty Scale for assessing frailty in patients admitted to critical care. We conducted a prospective, multi-centre study comparing assessments of frailty by staff from medical, nursing and physiotherapy backgrounds. Each assessment was made independently by two assessors after review of clinical notes and interview with an individual who maintained close contact with the patient. Frailty was defined as a Clinical Frailty Scale rating > 4. We made 202 assessments in 101 patients (median (IQR [range]) age 69 (65-75 [60-80]) years, median (IQR [range]) Acute Physiology and Chronic Health Evaluation II score 19 (15-23 [7-33])). Fifty-two (51%) of the included patients were able to participate in the interview; 35 patients (35%) were considered frail. Linear weighted kappa was 0.74 (95%CI 0.67-0.80) indicating a good level of agreement between assessors. However, frailty rating differed by at least one category in 47 (47%) cases. Factors independently associated with higher frailty ratings were: female sex; higher Acute Physiology and Chronic Health Evaluation II score; higher category of pre-hospital dependence; and the assessor having a medical background. We identified a good level of agreement in frailty assessment using the Clinical Frailty Scale, supporting its use in clinical care, but identified factors independently associated with higher ratings which could indicate personal bias.


Assuntos
Cuidados Críticos/métodos , Fragilidade/diagnóstico , Avaliação Geriátrica/métodos , Idoso , Idoso de 80 Anos ou mais , Estado Terminal , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Reprodutibilidade dos Testes , Escócia , Índice de Gravidade de Doença , País de Gales
6.
Eur J Appl Physiol ; 119(3): 645-652, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-30591963

RESUMO

PURPOSE: Cardiovascular disease (CVD) is the leading cause of death worldwide. Many risk factors for CVD can be modified pharmacologically; however, uptake of medications is low, especially in asymptomatic people. Exercise is also effective at reducing CVD risk, but adoption is poor with time-commitment and cost cited as key reasons for this. Repeated remote ischaemic preconditioning (RIPC) and isometric handgrip (IHG) training are both inexpensive, time-efficient interventions which have shown some promise in reducing blood pressure (BP) and improving markers of cardiovascular health and fitness. However, few studies have investigated the effectiveness of these interventions in premenopausal women. METHOD: Thirty healthy females were recruited to twelve supervised sessions of either RIPC or IHG over 4 weeks, or acted as non-intervention controls (CON). BP measurements, flow-mediated dilatation (FMD) and cardiopulmonary exercise tests (CPET) were performed at baseline and after the intervention period. RESULTS: IHG and RIPC were both well-tolerated with 100% adherence to all sessions. A statistically significant reduction in both systolic (- 7.2 mmHg) and diastolic (- 6 mmHg) BP was demonstrated following IHG, with no change following RIPC. No statistically significant improvements were observed in FMD or CPET parameters in any group. CONCLUSIONS: IHG is an inexpensive and well-tolerated intervention which may improve BP; a key risk factor for CVD. Conversely, our single arm RIPC protocol, despite being similarly well-tolerated, did not elicit improvements in any cardiorespiratory parameters in our chosen population.


Assuntos
Aptidão Cardiorrespiratória/fisiologia , Doenças Cardiovasculares/terapia , Exercício Físico/fisiologia , Contração Isométrica/fisiologia , Pressão Sanguínea/fisiologia , Doenças Cardiovasculares/fisiopatologia , Endotélio Vascular/fisiologia , Feminino , Força da Mão/fisiologia , Humanos , Hipertensão/fisiopatologia , Pessoa de Meia-Idade , Vasodilatação/fisiologia
7.
Tech Coloproctol ; 23(8): 761-767, 2019 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-31392530

RESUMO

BACKGROUND: Current evidence suggests that pelvic floor reconstruction following extralevator abdominoperineal excision of rectum (ELAPER) may reduce the risk of perineal herniation of intra-abdominal contents. Options for reconstruction include mesh and myocutaneous flaps, for which long-term follow-up data is lacking. The aim of this study was to evaluate the long-term outcomes of biological mesh (Surgisis®, Biodesign™) reconstruction following ELAPER. METHODS: A retrospective review of all patients having ELAPER in a single institution between 2008 and 2018 was perfomed. Clinic letters were scrutinised for wound complications and all available cross sectional imaging was reviewed to identify evidence of perineal herniation (defined as presence of intra-abdominal content below a line between the coccyx and the lower margin of the pubic symphysis on sagittal view). RESULTS: One hundred patients were identified (median age 66, IQR 59-72 years, 70% male). Median length of follow-up was 4.9 years (IQR 2.3-6.7 years). One, 2- and 5-year mortality rates were 3, 8 and 12%, respectively. Thirty three perineal wounds had not healed by 1 month, but no mesh was infected and no mesh needed to be removed. Only one patient developed a symptomatic perineal hernia requiring repair. On review of imaging a further 7 asymptomatic perineal hernias were detected. At 4 years the cumulative radiologically detected perineal hernia rate was 8%. CONCLUSIONS: This study demonstrates that pelvic floor reconstruction using biological mesh following ELAPER is both safe and effective as a long-term solution, with low major complication rates. Symptomatic perineal herniation is rare following mesh reconstruction, but may develop sub clinically and be detectable on cross-sectional imaging.


Assuntos
Hérnia Abdominal/prevenção & controle , Hérnia Incisional/prevenção & controle , Diafragma da Pelve/cirurgia , Procedimentos de Cirurgia Plástica/métodos , Protectomia/efeitos adversos , Telas Cirúrgicas , Idoso , Feminino , Hérnia Abdominal/etiologia , Humanos , Hérnia Incisional/etiologia , Masculino , Pessoa de Meia-Idade , Períneo/cirurgia , Reto/cirurgia , Estudos Retrospectivos , Resultado do Tratamento
8.
Tech Coloproctol ; 23(2): 129-134, 2019 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-30790102

RESUMO

BACKGROUND: Radiologically defined sarcopenia has been shown to predict negative outcomes after cancer surgery, however radiological assessment of sarcopenia often requires additional software and standardisation against anthropomorphic data. Measuring psoas density using hospital Picture Archiving and Communication Systems (PACS), universally available in the UK, may have advantages over methods requiring the use of additional specialist and often costly software. The aim of this study was to assess the association between radiologically defined sarcopenia measured by psoas density and postoperative outcome in patients having a colorectal cancer resection. METHODS: All patients having a resection for colorectal cancer, discussed by the colorectal multi-disciplinary team in one institution between 1/1/15 and 31/12/15, were retrospectively identified. Mean psoas density at the level of the L3 vertebra was analysed from preoperative computed tomography (CT) scans to define sarcopenia using the Picture Archiving and Communication Systems (PACS). Postoperative complications and mortality were recorded. RESULTS: One hundred and sixty-nine patients had a colorectal resection for cancer and 140 of these had a primary anastomosis. Ninety-day mortality and 1-year mortality were 1.1% and 7.1%, respectively. Eighteen (10.7%) patients suffered a Clavien-Dindo grade 3 or 4 complication of which 6 (33%) were anastomotic leaks. In the whole cohort, sarcopenia was associated with an increased risk of Clavien-Dindo grade 3 or 4 complications [adjusted OR 6.33 (1.65-24.23) p = 0.007]. In those who had an anastomosis, sarcopenia was associated with an increased risk of anastomotic leak [adjusted OR 14.37 (1.37-150.04) p = 0.026]. CONCLUSIONS: A quick and easy radiological assessment of sarcopenia by measuring psoas density on preoperative CT scan using software universally available in the UK is highly predictive of postoperative morbidity in colorectal cancer patients.


Assuntos
Fístula Anastomótica/mortalidade , Colectomia/efeitos adversos , Neoplasias Colorretais/diagnóstico por imagem , Complicações Pós-Operatórias/mortalidade , Protectomia/efeitos adversos , Músculos Psoas/diagnóstico por imagem , Tomografia Computadorizada por Raios X/estatística & dados numéricos , Idoso , Idoso de 80 Anos ou mais , Fístula Anastomótica/etiologia , Neoplasias Colorretais/complicações , Neoplasias Colorretais/cirurgia , Feminino , Humanos , Vértebras Lombares/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/etiologia , Valor Preditivo dos Testes , Período Pré-Operatório , Músculos Psoas/patologia , Estudos Retrospectivos , Sarcopenia/diagnóstico por imagem , Sarcopenia/etiologia , Sarcopenia/cirurgia
9.
Med Teach ; 39(1): 53-57, 2017 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-27631579

RESUMO

INTRODUCTION: Simulation-based training (SBT) has become an increasingly important method by which doctors learn. Stress has an impact upon learning, performance, technical, and non-technical skills. However, there are currently no studies that compare stress in the clinical and simulated environment. We aimed to compare objective (heart rate variability, HRV) and subjective (state trait anxiety inventory, STAI) measures of stress theatre with a simulated environment. METHODS: HRV recordings were obtained from eight anesthetic trainees performing an uncomplicated rapid sequence induction at pre-determined procedural steps using a wireless Polar RS800CX monitor © in an emergency theatre setting. This was repeated in the simulated environment. Participants completed an STAI before and after the procedure. RESULTS: Eight trainees completed the study. The theatre environment caused an increase in objective stress vs baseline (p = .004). There was no significant difference between average objective stress levels across all time points (p = .20) between environments. However, there was a significant interaction between the variables of objective stress and environment (p = .045). There was no significant difference in subjective stress (p = .27) between environments. DISCUSSION: Simulation was unable to accurately replicate the stress of the technical procedure. This is the first study that compares the stress during SBT with the theatre environment and has implications for the assessment of simulated environments for use in examinations, rating of technical and non-technical skills, and stress management training.


Assuntos
Simulação por Computador , Educação de Pós-Graduação em Medicina/métodos , Estresse Psicológico/epidemiologia , Estudantes de Medicina/psicologia , Anestesia/métodos , Competência Clínica , Feminino , Frequência Cardíaca , Humanos , Masculino , Estresse Psicológico/fisiopatologia
10.
Acta Anaesthesiol Scand ; 60(7): 910-6, 2016 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-26940201

RESUMO

BACKGROUND: The aims of this study were to determine if patient ASA grade was associated with increased stress in anaesthetists with a subsequent effect on non-technical skills. METHODS: Stress was measured using a validated objective (heart rate variability or heart rate) and subjective tool. We studied eight consultant anaesthetists at baseline (rest) and during 16 episodes of intubation with an ASA 1 or 2 patient vs. an ASA 3 or 4 patient. The primary outcome for the study was objective and subjective stress between both patient groups. Secondary outcomes were non-technical skill ratings and the association between stress measurements. RESULTS: ASA 3 or 4 patients were associated with increases in objective stress when compared to baseline (mean 4.6 vs. 6.7; P = 0.004). However, ASA 1 or 2 patients were not associated with increases in stress when compared to baseline (mean 4.6 vs. 4.7; P = 1). There was no significant difference in subjective stress between the groups (P = 0.18). Objective stress negatively affected situational awareness (P = 0.03) and decision-making (P = 0.03); however, these did not decline to a clinically significant threshold. Heart rate variability (r = 0.60; P = 0.002) better correlated with subjective stress when compared to heart rate (r = 0.30; P = 0.15). Agreement between raters for Anaesthetic Non-Technical Skills (ANTS) scores was acceptable (ICC = 0.51; P = 0.003). CONCLUSION: This study suggests that higher patient ASA grade can increase stress in anaesthetists, which may impair non-technical skills.


Assuntos
Anestesistas/psicologia , Anestesistas/estatística & dados numéricos , Competência Clínica/estatística & dados numéricos , Intubação Intratraqueal/normas , Estresse Fisiológico/fisiologia , Estresse Psicológico/psicologia , Adulto , Idoso , Feminino , Frequência Cardíaca/fisiologia , Humanos , Masculino , Pessoa de Meia-Idade , Risco , Índice de Gravidade de Doença , Estresse Psicológico/fisiopatologia
11.
Tech Coloproctol ; 20(2): 81-9, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26614304

RESUMO

The aim of this systematic review was to evaluate the evidence for exercise interventions prior to surgery for colorectal cancer resection. The evidence for use of exercise to improve physical fitness and surgical outcomes is as yet unknown. A systematic search was performed of MEDLINE, EMBASE, CINAHL, AMED and BNI databases for studies involving pre-operative exercise in colorectal cancer patients. Eight studies were included in the review. There is evidence that pre-operative exercise improves functional fitness, and to a lesser extent objectively measurable cardio-respiratory fitness prior to colorectal cancer resection. There is no clear evidence at present that this improvement in fitness translates into reduced peri-operative risk or improved post-operative outcomes. Current studies are limited by risk of bias. This review highlights the common difficulty in transferring promising results in a research setting, into significant improvements in the clinical arena. Future research should focus on which type of exercise is most likely to maximise patient adherence and improvements in cardio-respiratory fitness. Ultimately, adequately powered, randomised controlled trials are needed to investigate whether pre-operative exercise improves post-operative morbidity and mortality.


Assuntos
Colectomia , Neoplasias Colorretais/cirurgia , Terapia por Exercício/métodos , Aptidão Física , Cuidados Pré-Operatórios/métodos , Humanos
12.
Tech Coloproctol ; 20(6): 375-382, 2016 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-27015678

RESUMO

BACKGROUND: Over 41,000 people were diagnosed with colorectal cancer (CRC) in the UK in 2011. The incidence of CRC increases with age. Many elderly patients undergo surgery for CRC, the only curative treatment. Such patients are exposed to risks, which increase with age and reduced physical fitness. Endurance-based exercise training programmes can improve physical fitness, but such programmes do not comply with the UK, National Cancer Action Team 31-day time-to-treatment target. High-intensity interval training (HIT) can improve physical performance within 2-4 weeks, but few studies have shown HIT to be effective in elderly individuals, and those who do employ programmes longer than 31 days. Therefore, we investigated whether HIT could improve cardiorespiratory fitness in elderly volunteers, age-matched to a CRC population, within 31 days. METHODS: This observational cohort study recruited 21 healthy elderly participants (8 male and 13 female; age 67 years (range 62-73 years)) who undertook cardiopulmonary exercise testing before and after completing 12 sessions of HIT within a 31-day period. RESULTS: Peak oxygen consumption (VO2 peak) (23.9 ± 4.7 vs. 26.2 ± 5.4 ml/kg/min, p = 0.0014) and oxygen consumption at anaerobic threshold (17.86 ± 4.45 vs. 20.21 ± 4.11 ml/kg/min, p = 0.008) increased after HIT. CONCLUSIONS: It is possible to improve cardiorespiratory fitness in 31 days in individuals of comparable age to those presenting for CRC surgery.


Assuntos
Teste de Esforço/métodos , Terapia por Exercício/métodos , Tolerância ao Exercício , Treinamento Intervalado de Alta Intensidade/métodos , Idoso , Limiar Anaeróbio , Estudos de Coortes , Feminino , Voluntários Saudáveis , Humanos , Masculino , Pessoa de Meia-Idade , Consumo de Oxigênio , Aptidão Física , Tempo para o Tratamento , Resultado do Tratamento
13.
Am J Physiol Lung Cell Mol Physiol ; 309(8): L879-87, 2015 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-26254422

RESUMO

Pulmonary fibrosis is a common and dose-limiting side-effect of ionizing radiation used to treat cancers of the thoracic region. Few effective therapies are available for this disease. Pulmonary fibrosis is characterized by an accumulation of myofibroblasts and excess deposition of extracellular matrix proteins. Although prior studies have reported that ionizing radiation induces fibroblast to myofibroblast differentiation and collagen production, the mechanism remains unclear. Transforming growth factor-ß (TGF-ß) is a key profibrotic cytokine that drives myofibroblast differentiation and extracellular matrix production. However, its activation and precise role in radiation-induced fibrosis are poorly understood. Recently, we reported that lactate activates latent TGF-ß through a pH-dependent mechanism. Here, we wanted to test the hypothesis that ionizing radiation leads to excessive lactate production via expression of the enzyme lactate dehydrogenase-A (LDHA) to promote myofibroblast differentiation. We found that LDHA expression is increased in human and animal lung tissue exposed to ionizing radiation. We demonstrate that ionizing radiation induces LDHA, lactate production, and extracellular acidification in primary human lung fibroblasts in a dose-dependent manner. We also demonstrate that genetic and pharmacologic inhibition of LDHA protects against radiation-induced myofibroblast differentiation. Furthermore, LDHA inhibition protects from radiation-induced activation of TGF-ß. We propose a profibrotic feed forward loop, in which radiation induces LDHA expression and lactate production, which can lead to further activation of TGF-ß to drive the fibrotic process. These studies support the concept of LDHA as an important therapeutic target in radiation-induced pulmonary fibrosis.


Assuntos
L-Lactato Desidrogenase/metabolismo , Miofibroblastos/efeitos da radiação , Animais , Diferenciação Celular/efeitos da radiação , Células Cultivadas , Inibidores Enzimáticos/farmacologia , Gossipol/farmacologia , Humanos , Isoenzimas/antagonistas & inibidores , Isoenzimas/metabolismo , L-Lactato Desidrogenase/antagonistas & inibidores , Lactato Desidrogenase 5 , Ácido Láctico/biossíntese , Pulmão/enzimologia , Pulmão/efeitos da radiação , Camundongos , Camundongos Endogâmicos C57BL , Modelos Biológicos , Miofibroblastos/citologia , Miofibroblastos/enzimologia , Fibrose Pulmonar/enzimologia , Fibrose Pulmonar/etiologia , Lesões por Radiação/enzimologia , Lesões por Radiação/etiologia , Fator de Crescimento Transformador beta/metabolismo
14.
Colorectal Dis ; 17(1): O20-6, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25328119

RESUMO

AIM: Radiologically assessed muscle mass has been suggested as a surrogate marker of functional status and frailty and may predict patients at risk of postoperative complications. We hypothesize that sarcopenia negatively impacts on postoperative recovery and is predictive of complications. METHOD: One hundred patients undergoing elective resection for colorectal carcinoma were included in this study. Lean muscle mass was estimated by measuring the cross-sectional area of the psoas muscle at the level of the third lumbar vertebra identified on a preoperative CT scan, normalizing for patient height. Perioperative morbidity was scored according to the Clavien-Dindo classification. All statistical data analyses were carried out using the Statistical Package for the Social Sciences (SPSS) version 20.0. RESULTS: Fifteen per cent of patients were identified as sarcopenic. There were no deaths in the study group. Sarcopenia was associated with a significantly increased risk of developing major complications (Grade 3 or greater, OR = 5.41, 95% CI: 1.45-20.15, P = 0.01). Sarcopenia did not predict length of stay, critical care dependency or time to mobilization. CONCLUSION: Sarcopenia, as a marker of frailty, is an important risk factor in surgical patients but difficult to estimate using bedside testing. CT scans, performed for preoperative staging, provide an opportunity to quantify lean muscle mass without additional cost or exposure to radiation and eliminate the inconvenience of further investigations.


Assuntos
Colectomia/efeitos adversos , Neoplasias Colorretais/cirurgia , Complicações Pós-Operatórias/etiologia , Músculos Psoas/diagnóstico por imagem , Sarcopenia/diagnóstico por imagem , Idoso , Idoso de 80 Anos ou mais , Anatomia Transversal , Procedimentos Cirúrgicos Eletivos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Músculos Psoas/patologia , Estudos Retrospectivos , Fatores de Risco , Sarcopenia/complicações , Tomografia Computadorizada por Raios X
15.
Colorectal Dis ; 17(4): 335-41, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25406932

RESUMO

AIM: Performance in the operating room is affected by a combination of individual, patient and environmental factors amongst others. Stress has a potential negative impact on performance with the quality of surgical practice and patient safety being affected as a result. In order to appreciate the level of stress encountered during surgical procedures both objective and subjective methods can be used. This study reports the use of a combined objective (physiological) and subjective (psychological) method for evaluating stress experienced by the operating surgeon. METHOD: Six consultant colorectal surgeons were evaluated performing eighteen anterior resections. Heart rate was recorded using a wireless chest strap at eight pre-determined operative steps. Heart Rate Variability indices were calculated offline using computerized software. Surgeon reported stress was collected using the State Trait Anxiety Inventory, a validated clinical stress scale. RESULTS: A significant increase in stress was demonstrated in all surgeons whilst operating as indicated by sympathetic tone (control: 4.02 ± 2.28 vs operative: 11.42 ± 4.63; P < 0.0001). Peaks in stress according to operative step were comparable across procedures and surgeons. There was a significant positive correlation with subjective reporting of stress across procedures (r = 0.766; P = 0.0005). CONCLUSION: This study demonstrates a significant increase in sympathetic tone in consultant surgeons measured using heart rate variability during elective colorectal resections. A significant correlation can be demonstrated between HRV measurements and perceived stress using the State Trait Anxiety Inventory. A combined approach to assessing operative stress is required to evaluate any effect on performance and outcomes.


Assuntos
Ansiedade/fisiopatologia , Frequência Cardíaca , Estresse Psicológico/fisiopatologia , Cirurgiões/psicologia , Ansiedade/psicologia , Carcinoma/cirurgia , Colectomia , Neoplasias Colorretais/cirurgia , Procedimentos Cirúrgicos Eletivos , Feminino , Humanos , Masculino , Estresse Psicológico/psicologia
16.
Colorectal Dis ; 17(9): 820-3, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-25808587

RESUMO

AIM: Over 5000 loop ileostomy closures were performed in the UK in 2013 with a median inpatient stay of 5 days. Previously we have successfully implemented a 23-h protocol for loop ileostomy closure which was modified for same-day discharge. We present our early experience of day-case loop ileostomy closure. METHOD: A specific patient pathway for day-case discharge following loop ileostomy closure was implemented with inclusion criteria to conform with British Association of Day Surgery guidelines. Exclusion criteria included postoperative chemoradiotherapy, multiple comorbidities and social care needs. Follow-up consisted of telephone contact (24 and 72 h after discharge) and a routine outpatient appointment. Patients were provided with a 24-h contact point in case of emergency. RESULTS: Fifteen (12 male) patients were enrolled of median age 67 (39-80) years. The median operating time was 41 (23-80) min. The indication for ileostomy formation was to cover a low anterior resection for adenocarcinoma (13), reversal of Hartmann's procedure (1) and functional bowel disorder (1). The median interval from the primary procedure to day-case loop ileostomy closure was 8 (3-14) months. Every patient was discharged on the day of surgery. There were no complications related to the surgery and there was one readmission due to a urinary tract infection. The median length of follow-up was 4 (2-16) months. CONCLUSION: Our early experience shows that day-case loop ileostomy closure is feasible, safe and efficient. This protocol will become standard within our institution for suitable patients, saving on average five inpatient bed days per patient.


Assuntos
Assistência Ambulatorial/métodos , Ileostomia , Íleo/cirurgia , Assistência Perioperatória , Técnicas de Fechamento de Ferimentos Abdominais , Adulto , Idoso , Idoso de 80 Anos ou mais , Procedimentos Clínicos , Feminino , Humanos , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Duração da Cirurgia , Alta do Paciente , Projetos Piloto , Fatores de Tempo
17.
Anaesthesia ; 70(10): 1186-204, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26300519

RESUMO

We searched MEDLINE, Embase, CINAHL, AMED and CENTRAL databases until December 2014 and included 133 randomised controlled trials of peri-operative gabapentin vs placebo. Gabapentin reduced mean (95% CI) 24-h morphine-equivalent consumption by 8.44 (7.26-9.62) mg, p < 0.001, whereas more specific reductions in morphine equivalents were predicted (R(2)  = 90%, p < 0.001) by the meta-regression equation: 3.73 + (-0.378 × control morphine consumption (mg)) + (-0.0023 × gabapentin dose (mg)) + (-1.917 × anaesthetic type), where 'anaesthetic type' is '1' for general anaesthesia and '0' for spinal anaesthesia. The type of surgery was not independently associated with gabapentin effect. Gabapentin reduced postoperative pain scores on a 10-point scale at 1 h, 2 h, 6 h, 12 h and 24 h by a mean (95% CI) of: 1.68 (1.35-2.01); 1.21 (0.88-1.55); 1.28 (0.98-1.57); 1.12 (0.91-1.33); and 0.71 (0.56-0.87), respectively, p < 0.001 for all. The risk ratios (95% CI) for postoperative nausea, vomiting, pruritus and sedation with gabapentin were: 0.78 (0.69-0.87), 0.67 (0.59-0.76), 0.64 (0.51-0.80) and 1.18 (1.09-1.28), respectively, p < 0.001 for all. Gabapentin reduced pre-operative anxiety and increased patient satisfaction on a 10-point scale by a mean (95% CI) of 1.52 (0.78-2.26) points and 0.89 (0.22-1.57) points, p < 0.001 and p = 0.01, respectively. All the effects of gabapentin may have been overestimated by statistically significant small study effects.


Assuntos
Aminas/administração & dosagem , Analgésicos/administração & dosagem , Ácidos Cicloexanocarboxílicos/administração & dosagem , Dor Pós-Operatória/prevenção & controle , Ácido gama-Aminobutírico/administração & dosagem , Aminas/efeitos adversos , Analgésicos/efeitos adversos , Analgésicos Opioides/administração & dosagem , Ácidos Cicloexanocarboxílicos/efeitos adversos , Esquema de Medicação , Quimioterapia Combinada , Gabapentina , Humanos , Morfina/administração & dosagem , Náusea e Vômito Pós-Operatórios/prevenção & controle , Prurido/prevenção & controle , Ácido gama-Aminobutírico/efeitos adversos
18.
Tech Coloproctol ; 19(6): 347-54, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25972298

RESUMO

BACKGROUND: There is no consensus amongst colorectal surgeons as to whether preoperative exercise is beneficial in the management of colorectal cancer patients. Research has shown higher rates of postoperative complications in patients who are less fit. Agreement needs to be sought on whether improving fitness via exercise should be a part of preoperative care. The Delphi process is an iterative process designed to refine opinions on a subject, until consensus agreement is reached within an expert group. METHODS: We performed a Delphi survey with a group of consultant colorectal surgeons. Statements achieving >80% agreement were taken as consensus, those achieving >80% disagreement were removed, and those in between were revised in the following round. The process ended with a group of statements which achieved consensus. RESULTS: Thirty-two statements were included in the first round of the survey. After three rounds of the survey, 21 statements were accepted as consensus, six statements were rejected, and seven statements did not reach consensus. It was agreed that exercise training should form part of preoperative care and would be supported by surgeons. That suitable programmes pose significant risk to patients was rejected. There was no consensus reached on the strength of current available evidence or whether it would be possible to deliver exercise programmes. CONCLUSIONS: This work is the first to produce a set of statements on which expert consensus opinion has been agreed regarding preoperative exercise in colorectal cancer patients. Future work, informed by this study, will design interventions to produce rapid improvements in fitness before surgery.


Assuntos
Neoplasias Colorretais/terapia , Consenso , Técnica Delphi , Terapia por Exercício/normas , Aptidão Física , Idoso , Terapia por Exercício/métodos , Humanos
20.
Tech Coloproctol ; 18(12): 1153-9, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25380740

RESUMO

BACKGROUND: Achieving full recovery after colorectal cancer surgery means a return to normal physical and psychological health and to a normal social life. Recovery data focusses on time to discharge rather than longer term functionality including return to work (RTW). We aim to assess return to normal holistic function at 1 year after colorectal cancer surgery. METHOD: Questionnaires were created and dispatched to 204 patients who had undergone surgery with curative intent for colorectal cancer, in 2011-2012, in a single teaching hospital. RESULTS: Response rate was 75 % (153/204), 82 % (129/157) for open surgery (OS) and 51 % (24/47) for laparoscopic surgery (LS). Median age was 68 (48-91) years for OS and 65 (36-84) for LS. Eighty-four per cent of patients felt 'ready' and 95 % had adequate pain control upon discharge (no difference between groups). LS reported earlier 'return to full fitness' (1-3 months) than OS (>6 months; Mann-Whitney U, p < 0.05). Recovery from LS was 'better than expected' compared to OS 'worse than expected' (Mann-Whitney U test, p < 0.05). Forty-nine patients were employed preoperatively and 61 % (n = 30) returned to work. RTW was more frequent after LS (Chi-square test, p < 0.05). Length of time to RTW was significantly less after LS [44 (6-84) days] than OS [71 (14-252) days] (t test, p < 0.05). Levels of self-employment were equal between groups. CONCLUSIONS: One-third of patients failed to RTW at 1 year post-surgery. Patients having LS returned to full fitness faster, felt recovery was shorter and returned to work earlier than OS. We must invest more in managing expectations and provide better post-discharge support to improve RTW.


Assuntos
Neoplasias Colorretais/reabilitação , Retorno ao Trabalho/estatística & dados numéricos , Idoso , Idoso de 80 Anos ou mais , Distribuição de Qui-Quadrado , Neoplasias Colorretais/cirurgia , Cirurgia Colorretal , Emprego/estatística & dados numéricos , Inquéritos Epidemiológicos/estatística & dados numéricos , Humanos , Laparoscopia , Pessoa de Meia-Idade , Manejo da Dor/psicologia , Manejo da Dor/estatística & dados numéricos , Período Pós-Operatório , Estatísticas não Paramétricas , Inquéritos e Questionários , Fatores de Tempo
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