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1.
Tech Coloproctol ; 28(1): 72, 2024 Jun 25.
Artigo em Inglês | MEDLINE | ID: mdl-38918216

RESUMO

BACKGROUND: Ileoanal pouch is a demanding procedure with many potential technical complications including bladder or ureteral injury, while inflammation or stricture of the anastomosis or anal transition zone may lead to the formation of strictures and fistulae, including to the adjacent urethra. Pouch urinary tract fistulae are rare. We aimed to describe the presentation, diagnostic workup, and management of patients with pouch urinary at our center. METHODS: Our prospectively maintained pouch registry was queried using diagnostic codes and natural language processing free-text searches to identify ileoanal pouch patients diagnosed with any pouch-urinary tract fistula from 1997 to 2022. Descriptive statistics and pouch survival using Kaplan-Meier curves are presented. Numbers represent frequency (proportion) or median (range). RESULTS: Over 25 years, urinary fistulae were observed 27 pouch patients; of these, 16 of the index pouches were performed at our institution [rate 0.3% (16/5236)]. Overall median age was 42 (27-62) years, and 92.3% of the patients were male. Fistula locations included pouch-urethra in 13 patients (48.1%), pouch-bladder in 12 patients (44.4%), and anal-urethra in 2 (7.4%). The median time from pouch to fistula was 7.0 (0.3-38) years. Pouch excision and end ileostomy were performed in 12 patients (bladder fistula, n = 3; urethral fistula, n = 9), while redo ileal pouch-anal anastomosis (IPAA) was performed in 5 patients (bladder fistula, n = 3; urethral fistula, n = 2). The 5-year overall pouch survival after fistula to the bladder was 58.3% vs. 33.3% with urethral fistulae (p = 0.25). CONCLUSION: Pouch-urinary tract fistulae are a rare, morbid, and difficult to treat complication of ileoanal pouch that requires a multidisciplinary, often staged, surgical approach. In the long term, pouches with bladder fistulae were more likely to be salvaged than pouches with urethral fistulae.


Assuntos
Bolsas Cólicas , Complicações Pós-Operatórias , Fístula Urinária , Humanos , Masculino , Adulto , Feminino , Pessoa de Meia-Idade , Bolsas Cólicas/efeitos adversos , Fístula Urinária/etiologia , Fístula Urinária/cirurgia , Complicações Pós-Operatórias/etiologia , Fatores de Tempo , Sistema de Registros , Estudos Prospectivos , Proctocolectomia Restauradora/efeitos adversos , Fístula da Bexiga Urinária/etiologia , Fístula da Bexiga Urinária/cirurgia , Estimativa de Kaplan-Meier
2.
Public Health Action ; 13(2 Suppl 1): 19-24, 2023 Aug 01.
Artigo em Francês | MEDLINE | ID: mdl-37529554

RESUMO

CONTEXT: A unit supported by Médecins Sans Frontières (MSF) cares for patients with advanced HIV at Donka National Hospital, Conakry, Guinea. OBJECTIVE: To determine the factors associated with the occurrence of death in patients hospitalised in the unit between 2017 and 2021. DESIGN: This was a retrospective analysis of routine data from patients hospitalised with advanced HIV. RESULTS: A total of 3,718 patients were included, with a median age of 40 years (IQR 33-51), of whom 2,241 (60.3%) were women. The mean mortality rate was 33.6% (n = 1,240), down from 40% in 2017 to 29% in 2021, but this was not statistically significant. The period most at risk of death was the first 25 days of hospitalisation. Among these patients, TB (43.8%) and toxoplasmosis (11.4%) were the most frequent diagnoses. After multivariate analysis using Cox regression, the factors associated with death were age 25-49 years (adjusted hazard ratio [aHR] 1.60; P = 0.002) or ≥50 years (aHR 1.80; P < 0.001), the presence of respiratory (aHR 1.23; P = 0.001) or abdominal symptoms (aHR 1.26; P < 0.001) and readmission (aHR 0.54; P < 0.001). CONCLUSION: Patients aged 25-49 years or older, or those presenting with respiratory or abdominal signs require increased surveillance, as they are at the greatest risk of dying from the disease, especially during the first 25 days of hospitalisation.

3.
BMC Med Educ ; 23(1): 363, 2023 May 22.
Artigo em Inglês | MEDLINE | ID: mdl-37217950

RESUMO

BACKGROUND: Britain attracts doctors from all over the world to work in the National Health Service. Elucidating the educational backgrounds of award-winning doctors working in the country is potentially an important medical education issue and merit award audit. Using the British clinical merit award schemes as outcome measures, we identify medical school origins of award-winning doctors who have been identified as having achieved national or international prominence. METHODS: The Clinical Excellence Awards/Distinction Awards schemes select doctors in Britain who are classified as high achievers, with categories for national prominence and above. We used this outcome measure in a quantitative observational analysis of the 2019 dataset of all 901 award-winning doctors. Pearson's Chi-Square test was used where appropriate. RESULTS: Seven medical schools (London university medical schools, Glasgow, Edinburgh, Aberdeen, Oxford, Cambridge and Manchester) accounted for 52.7% of the surgical award-winning doctors in the 2019 round, despite the dataset representing 85 medical schools. Surgeons with the lower grade national awards came from a more diverse educational background of 43 medical schools. International medical graduates accounted for 16.1% of the award-winning surgeons and 9.8% of the award-winning non-surgeons. 87.1% of the surgical award-winners were from European medical schools, whereas 93.2% of the non-surgical award-winners were from European medical schools. CONCLUSIONS: The majority of the award-winning surgeons originated from only seven, overrepresented, medical schools. A greater diversity of medical school origin existed for the lowest grade national merit awards. These comprised 43 medical schools and indicated greater globalization effects in this category. International medical graduates contributed substantially to these award holders; surgical award-winners were more likely to be international medical graduates (16.1%) than non-surgical award-winners (9.8%). This study not only indicates educational centres associated with the production of award-winners but also provides students with a roadmap for rational decision making when selecting medical schools.


Assuntos
Distinções e Prêmios , Cirurgiões , Humanos , Faculdades de Medicina , Medicina Estatal , Avaliação de Resultados em Cuidados de Saúde
4.
Tech Coloproctol ; 27(12): 1257-1263, 2023 12.
Artigo em Inglês | MEDLINE | ID: mdl-37209279

RESUMO

PURPOSE: The safety of early ileostomy reversal after ileal pouch anal anastomosis (IPAA) has not been established. Our hypothesis was that ileostomy reversal before 8 weeks is associated with negative outcomes. METHODS: This was a retrospective cohort study from a prospectively maintained institutional database. Patients who underwent primary IPAA with ileostomy reversal between 2000 and 2021 from a Pouch Registry were stratified on the basis of timing of reversal. Those reversed before 8 weeks (early) and those reversed from 8 weeks to 116 days (routine) were compared. The primary outcome was overall complications according to timing and reason for closure. RESULTS: Ileostomy reversal was performed early in 92 patients and routinely in 1908. Median time to closure was 49 days in the early group and 93 days in the routine group. Reasons for early reversal were stoma-related morbidity in 43.3% (n = 39) and scheduled closure in 56.7% (n = 51). The complication rate in the early group was 17.4% versus 11% in the routine group (p = 0.085). When early patients were stratified according to reason for reversal, those reversed early for stoma-related morbidity had an increased complication rate compared to the routine group (25.6% vs. 11%, p = 0.006). Patients undergoing scheduled reversal in the early group did not have increased complications (11.8% vs. 11%, p = 0.9). There was a higher likelihood of pouch anastomotic leak when reversal was performed early for stoma complications compared to routinely (OR 5.13, 95% CI 1.01-16.57, p = 0.049). CONCLUSIONS: Early closure is safe but could be delayed in stoma morbidity as patients may experience increased complications.


Assuntos
Colite Ulcerativa , Bolsas Cólicas , Proctocolectomia Restauradora , Humanos , Proctocolectomia Restauradora/efeitos adversos , Ileostomia/efeitos adversos , Estudos Retrospectivos , Fístula Anastomótica/etiologia , Fístula Anastomótica/cirurgia , Anastomose Cirúrgica/efeitos adversos , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/cirurgia , Colite Ulcerativa/cirurgia , Bolsas Cólicas/efeitos adversos
5.
BMC Med Educ ; 23(1): 222, 2023 Apr 07.
Artigo em Inglês | MEDLINE | ID: mdl-37029376

RESUMO

AIMS: To inform the discussion regarding the origins of Laboratory Medical Consultant clinical merit award holders (LMC) whether the awards came from the Clinical Excellence Awards (CEA) or Distinction Awards (DA) schemes. METHODS: Setting - CEA is a scheme to financially reward senior doctors in England and Wales who are assessed to be working over and above the standard expected of their role. The DA scheme is the parallel and equivalent scheme in Scotland. Participants - All of the merit award holders in the 2019 round. Design - This involved a secondary analysis of the complete 2019 published dataset of award winners. Statistical analyses were performed with Chi-square tests set at p < 0.05 level for statistical significance. RESULTS: The top five medical schools (London University, Glasgow, Edinburgh, Aberdeen and Oxford) were responsible for 68.4% of the LMC merit award holders in the 2019 round. 97.9% of the LMC merit award holders were from European medical schools, whereas 90.9% of the non-LMC award holders were from European medical schools. The LMCs with A plus or platinum awards came from only six medical schools: Aberdeen, Edinburgh, London University, Oxford, Sheffield and Southampton. In contrast, the B or silver/bronze LMC award holders came from a more diverse background of 13 medical schools. CONCLUSIONS: The majority of LMC merit award holders originated from only five university medical schools. All the LMCs with A plus or platinum awards came from only six university medical schools. There is an apparent overrepresentation of a small number of medical schools of origin amongst those LMCs that hold national merit awards.


Assuntos
Distinções e Prêmios , Médicos , Faculdades de Medicina , Humanos , Médicos/estatística & dados numéricos , Faculdades de Medicina/estatística & dados numéricos , Reino Unido/epidemiologia , Europa (Continente)/epidemiologia
6.
Eur J Appl Physiol ; 121(5): 1431-1439, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-33620545

RESUMO

PURPOSE: Cold-induced vasodilation (CIVD) is a paradoxical rise in blood flow to the digits that occur during prolonged cold exposure. CIVD is thought to occur through active vasodilation and/or sympathetic withdrawal, where nitric oxide (NO) may play a key role in mediating these mechanisms. Beetroot juice (BRJ) is high in dietary nitrate (NO3-) which undergoes sequential reduction to nitrite (NO2-) and subsequently NO. Using a double-blind, randomized, crossover design, we examined the effect of acute BRJ supplementation on the CIVD response in 10 healthy males. METHODS: Participants had a resting blood pressure measurement taken prior to ingesting 140 mL of nitrate-rich BRJ (13 mmol NO3-) or a NO3--free placebo (PLA). After 2 h, participants immersed their hand in neutral water (~ 35 °C) for 10 min of baseline before cold water immersion (~ 8 °C) for 30 min. Laser-Doppler fluxmetry and skin temperature were measured continuously on the digits. RESULTS: Compared to PLA (100 ± 3 mmHg), acute BRJ supplementation significantly reduced mean arterial pressure at -30 min (96 ± 2 mmHg; p = 0.007) and 0 min (94 ± 2 mmHg; p = 0.008). Acute BRJ supplementation had no effect on Laser-Doppler fluxmetry during CIVD (expressed as cutaneous vascular conductance) measured as area under the curve (BRJ: 843 ± 148 PU mmHg-1 s; PLA: 1086 ± 333 PU mmHg-1 s), amplitude (BRJ: 0.60 ± 0.12 PU mmHg-1; PLA: 0.69 ± 0.14 PU mmHg-1), and duration (BRJ: 895 ± 60 s; PLA: 894 ± 46 s). CONCLUSION: Acute BRJ supplementation does not augment the CIVD response in healthy males.


Assuntos
Temperatura Baixa , Dedos/irrigação sanguínea , Nitratos/administração & dosagem , Vasodilatação/efeitos dos fármacos , Estudos Cross-Over , Suplementos Nutricionais , Método Duplo-Cego , Voluntários Saudáveis , Humanos , Fluxometria por Laser-Doppler , Masculino , Temperatura Cutânea , Adulto Jovem
7.
AJNR Am J Neuroradiol ; 41(9): 1569-1576, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32763897

RESUMO

BACKGROUND AND PURPOSE: Cellular uptake of the manganese ion, when administered as a contrast agent for MR imaging, can noninvasively highlight cellular activity and disease processes in both animals and humans. The purpose of this study was to explore the enhancement profile of manganese in patients with multiple sclerosis. MATERIALS AND METHODS: Mangafodipir is a manganese chelate that was clinically approved for MR imaging of liver lesions. We present a case series of 6 adults with multiple sclerosis who were scanned at baseline with gadolinium, then injected with mangafodipir, and followed at variable time points thereafter. RESULTS: Fourteen new lesions formed during or shortly before the study, of which 10 demonstrated manganese enhancement of varying intensity, timing, and spatial pattern. One gadolinium-enhancing extra-axial mass, presumably a meningioma, also demonstrated enhancement with manganese. Most interesting, manganese enhancement was detected in lesions that formed in the days after mangafodipir injection, and this enhancement persisted for several weeks, consistent with contrast coming from intracellular uptake of manganese. Some lesions demonstrated a diffuse pattern of manganese enhancement in an area larger than that of both gadolinium enhancement and T2-FLAIR signal abnormality. CONCLUSIONS: This work demonstrates the first use of a manganese-based contrast agent to enhance MS lesions on MR imaging. Multiple sclerosis lesions were enhanced with a temporal and spatial profile distinct from that of gadolinium. Further experiments are necessary to uncover the mechanism of manganese contrast enhancement as well as cell-specific uptake.


Assuntos
Meios de Contraste/administração & dosagem , Ácido Edético/análogos & derivados , Imageamento por Ressonância Magnética/métodos , Esclerose Múltipla/diagnóstico por imagem , Fosfato de Piridoxal/análogos & derivados , Adulto , Animais , Ácido Edético/administração & dosagem , Feminino , Humanos , Injeções Intravenosas , Masculino , Esclerose Múltipla/patologia , Projetos Piloto , Fosfato de Piridoxal/administração & dosagem
8.
Public Health ; 186: 12-16, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32736308

RESUMO

OBJECTIVES: Transgender-identifying sex workers (TGISWs) are among the most vulnerable groups but are rarely the focus of health research. Here we evaluated perceived barriers to healthcare access, risky sexual behaviours and exposure to violence in the United Kingdom (UK), based on a survey of all workers on BirchPlace, the main transgender sex commerce website in the UK. STUDY DESIGN: The study design used in the study is an opt-in text-message 12-item questionnaire. METHODS: Telephone contacts were harvested from BirchPlace's website (n = 592 unique and active numbers). The questionnaire was distributed with Qualtrics software, resulting in 53 responses. RESULTS: Our survey revealed significant reported barriers to healthcare access, exposure to risky sexual behaviours and to physical violence. Many transgender sex workers reportedly did not receive a sexual screening, and 28% engaged in condomless penetrative sex within the preceding six months, and 68% engaged in condomless oral sex. 17% responded that they felt unable to access health care they believed medically necessary. Half of the participants suggested their quality of life would be improved by law reform. CONCLUSIONS: TGISWs report experiencing a high level of risky sexual behaviour, physical violence and inadequate healthcare access. Despite a National Health System, additional outreach may be needed to ensure access to services by this population.


Assuntos
Doenças Transmissíveis/epidemiologia , Acessibilidade aos Serviços de Saúde/estatística & dados numéricos , Profissionais do Sexo/estatística & dados numéricos , Pessoas Transgênero/estatística & dados numéricos , Violência/estatística & dados numéricos , Feminino , Infecções por HIV/epidemiologia , Humanos , Internet , Masculino , Qualidade de Vida , Fatores de Risco , Autorrelato , Trabalho Sexual/legislação & jurisprudência , Trabalho Sexual/estatística & dados numéricos , Profissionais do Sexo/psicologia , Comportamento Sexual/estatística & dados numéricos , Inquéritos e Questionários , Pessoas Transgênero/psicologia , Reino Unido/epidemiologia
9.
Br J Surg ; 107(13): 1826-1831, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-32687623

RESUMO

BACKGROUND: No formal guidelines exist for surveillance pouchoscopy following ileal pouch-anal anastomosis (IPAA) for ulcerative colitis. METHODS: All adults who had previously had IPAA for ulcerative colitis, and underwent a pouchoscopy between 1 January 2010 and 1 January 2020, were included. RESULTS: A total of 9398 pouchoscopy procedures were performed in 3672 patients. The majority of the examinations were diagnostic (8082, 86·0 per cent; 3260 patients) and the remainder were for routine surveillance (1316, 14·0 per cent; 412 patients). Thirteen patients (0·14 per cent of procedures) were found to have biopsy-proven neoplasia at the time of pouchoscopy; seven had low-grade dysplasia (LGD) (0·07 per cent; all located in the anal transition zone), none had high-grade dysplasia (HGD) and six (0·06 per cent) had invasive adenocarcinoma (4 in anal transition zone and 6 in pouch). Of the six patients with adenocarcinoma, four had neoplasia at the time of proctocolectomy (2 adenocarcinoma, 1 LGD, 1 HGD); all six were symptomatic with anal bleeding or pelvic pain at the time of pouchoscopy, had a negative surveillance pouchoscopy examination within 2 years of diagnosis of adenocarcinoma, had palpable masses on digital rectal examination, and had visible lesions at the time of pouchoscopy. CONCLUSION: Surveillance pouchoscopy is not recommended in asymptomatic patients because significant neoplasia following IPAA for ulcerative colitis is rare.


ANTECEDENTES: No existen unas recomendaciones formales para vigilancia endoscópica en pacientes a los que se les ha realizado un reservorio ileoanal (ileal pouch anal anastomosis, IPAA) por una colitis ulcerosa (ulcerative colitis, UC). MÉTODOS: Se incluyeron todos los pacientes adultos a los que se les había realizado previamente un IPAA por UC y se sometieron a una endoscopia del reservorio. RESULTADOS: Se realizaron un total de 9.398 procedimientos endoscópicos en 3.672 pacientes entre el 1/1/2010 y el 1/1/2020. La mayoría de las exploraciones fueron diagnósticas (n = 8.082; 86%; 3.260 pacientes) y el resto fueron de seguimiento (n = 1.316; 14%; 412 pacientes). Se descubrió que 13 pacientes tenían una neoplasia demostrada por biopsia (0,14%) en el momento de la endoscopia; siete pacientes tenían displasia de bajo grado (low-grade displasia, LGD) (0,074%; localizada en todos los casos en la zona de transición anal), ninguno tenía displasia de alto grado (high-grade displasia, HGD) y seis (0,064%) tenían un adenocarcinoma invasivo (cuatro en la zona de transición anal) y dos en el reservorio). De los seis pacientes con adenocarcinoma, 4 tenían neoplasia en el momento de la proctocolectomía (2 adenocarcinoma, uno LGD, uno HGD). Todos estos pacientes tenían síntomas de hemorragia anal o dolor pélvico en el momento de la endoscopia, se les había practicado una endoscopia previa reciente del reservorio en los dos años anteriores, presentaban una masa palpable en la exploración digital rectal, así como lesiones visibles en la endoscopia del reservorio. CONCLUSIÓN: La vigilancia endoscópica del reservorio no se recomienda en pacientes asintomáticos porque es raro que aparezca una neoplasia después del IPAA por UC.


Assuntos
Adenocarcinoma/diagnóstico por imagem , Assistência ao Convalescente , Colite Ulcerativa/cirurgia , Neoplasias do Colo/diagnóstico por imagem , Endoscopia Gastrointestinal , Complicações Pós-Operatórias/diagnóstico por imagem , Proctocolectomia Restauradora , Adenocarcinoma/patologia , Adulto , Assistência ao Convalescente/métodos , Assistência ao Convalescente/estatística & dados numéricos , Idoso , Neoplasias do Colo/patologia , Bolsas Cólicas/patologia , Bases de Dados Factuais , Endoscopia Gastrointestinal/métodos , Endoscopia Gastrointestinal/estatística & dados numéricos , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/patologia
12.
Colorectal Dis ; 22(9): 1154-1158, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32003920

RESUMO

AIM: Excisional haemorrhoidectomy in patients with ulcerative colitis (UC), especially those undergoing an ileal pouch-anal anastomosis (IPAA), remains controversial. The aim of our study was to determine the safety of excisional haemorrhoidectomy in UC patients with and without an IPAA. METHOD: A retrospective review of all adult UC patients undergoing excisional haemorrhoidectomy between 1 January 1995 and 1 January 2019 at a tertiary inflammatory bowel disease referral centre was performed. Data collected included patient demographics, clinical characteristics of UC, prior surgical intervention for UC (colectomy, IPAA) and complications after haemorrhoidectomy. RESULTS: Forty-one adult patients [50% male; median age 52 (range 25-79) years] with UC underwent excisional haemorrhoidectomy between 1 January 1995 and 1 January 2019. The majority (n = 23) had not previously undergone surgery for UC. However, eight had already undergone construction of an IPAA at the time of haemorrhoidectomy, seven had IPAA at the time of haemorrhoidectomy and three had an IPAA constructed subsequent to haemorrhoidectomy. Two (4.9%) patients need to go back to theatre for postoperative bleeding. There were no further 30-day complications or long-term nonhealing of the surgical site. There were no pouch complications in those who had haemorrhoidectomy at the time of IPAA construction or in the presence of an IPAA. CONCLUSION: Our data suggest that excisional haemorrhoidectomy may be performed safely in carefully selected UC patients with symptomatic haemorrhoids with or without IPAA and even at the time of IPAA construction.


Assuntos
Colite Ulcerativa , Bolsas Cólicas , Hemorroidectomia , Proctocolectomia Restauradora , Adulto , Idoso , Anastomose Cirúrgica/efeitos adversos , Colite Ulcerativa/cirurgia , Bolsas Cólicas/efeitos adversos , Feminino , Hemorroidectomia/efeitos adversos , Humanos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia , Proctocolectomia Restauradora/efeitos adversos , Estudos Retrospectivos , Resultado do Tratamento
14.
J Crohns Colitis ; 14(2): 185-191, 2020 Feb 10.
Artigo em Inglês | MEDLINE | ID: mdl-31328222

RESUMO

BACKGROUND AND AIM: The effects of vedolizumab [VEDO] exposure on perioperative outcomes following surgery for inflammatory bowel disease [IBD] remain controversial. The aim of our study was to compare postoperative morbidity of IBD surgery following treatment with VEDO vs other biologics or no biologics. METHODS: An institutional review board-approved, prospectively collected database was queried to identify all patients undergoing abdominal surgery for IBD between August 2012 and May 2017. The impact of VEDO within 12 weeks preoperatively on postoperative morbidity was initially assessed with univariate and multivariable analyses on all patients. A case-matched analysis was then carried out comparing patients exposed to VEDO vs other biologic agents, based on gender, age ± 5 years, diagnosis, date of surgery ± 2 years, and surgical procedure. RESULTS: Out of 980 patients, 141 received VEDO. The majority of patients [59%] underwent surgery involving end or diverting ostomy creation. The initial multivariate analysis conducted on all patients indicated that VEDO use was independently associated with increased overall morbidity [p <0.001], but not infectious morbidity [p = 0.30]. However, the case-matched comparison of 95 VEDO-treated patients vs 95 patients treated with adalimumab or infliximab did not indicate any difference in overall morbidity [p = 0.32], infectious complications [p = 0.15], or surgical site infections [p = 0.12]. CONCLUSIONS: In a study population having a high rate of surgery involving ostomy creation, the exposure to preoperative VEDO was not associated with an increased morbidity rate when compared with other biologics.


Assuntos
Adalimumab/uso terapêutico , Anticorpos Monoclonais Humanizados/uso terapêutico , Fármacos Gastrointestinais/uso terapêutico , Doenças Inflamatórias Intestinais/cirurgia , Infliximab/uso terapêutico , Estudos de Casos e Controles , Terapia Combinada , Feminino , Humanos , Doenças Inflamatórias Intestinais/tratamento farmacológico , Masculino , Complicações Pós-Operatórias/epidemiologia , Estudos Prospectivos , Infecção da Ferida Cirúrgica/epidemiologia , Resultado do Tratamento
15.
Tech Coloproctol ; 2019 Nov 11.
Artigo em Inglês | MEDLINE | ID: mdl-31713097

RESUMO

BACKGROUND: Duty hour restrictions have increased the role of simulation in surgical education. A simulation that recreates the unique visual, anatomic, and ergonomic challenges of anorectal surgery has yet to be described. The aim of this study was to develop a low-cost, low-fidelity anorectal surgery simulator and provide validity evidence for the model. METHODS: A novel, low-fidelity simulator was constructed, and anorectal surgery workshops were implemented for general surgery interns at a single institution. Face and content validity were assessed with separate questionnaires using a 5-point Likert scale. Participants performed a simulated hemorrhoid excision with longitudinal wound closure, and transverse wound closure. Time-to-task completion and quality of suturing/knot tying were evaluated by a blinded observer to assess construct validity. RESULTS: Material cost was US $11 per simulator. We recruited 20 first-year surgery residents (novices) and 4 practicing colorectal surgeons (experts), and conducted 3 workshops in 2014-2016. All face and content validity measures achieved a median score greater than 4 (range 4.0-5.0). Time-to-task completion was significantly lower in the expert cohort (hemorrhoid excision with longitudinal wound closure: 195 vs. 477 s and transverse closure: 79 vs. 192 s, p < 0.001 for both). Suturing and knot-tying scores were significantly higher in the expert cohort for both tasks (p < 0.05 for all comparisons). CONCLUSIONS: Our low-fidelity, low-cost anorectal surgery model demonstrated evidence of face, content, and construct validity. We believe that this simulator could be a useful instrument in the education of junior surgical trainees and will allow residents to obtain proficiency in anorectal suturing tasks in conjunction with traditional surgical training.

16.
AJNR Am J Neuroradiol ; 40(8): 1309-1316, 2019 08.
Artigo em Inglês | MEDLINE | ID: mdl-31371354

RESUMO

BACKGROUND AND PURPOSE: The manganese ion is used as an intracellular MR imaging contrast agent to study neuronal function in animal models, but it remains unclear whether manganese-enhanced MR imaging can be similarly useful in humans. Using mangafodipir (Teslascan, a chelated manganese-based contrast agent that is FDA-approved), we evaluated the dynamics of manganese enhancement of the brain and glandular structures in the rostral head and neck in healthy volunteers. MATERIALS AND METHODS: We administered mangafodipir intravenously at a rate of 1 mL/minute for a total dose of 5 µmol/kg body weight. Nine healthy adult volunteers (6 men/3 women; median age, 43 years) completed baseline history and physical examination, 3T MR imaging, and blood work. MR imaging also followed mangafodipir administration at various time points from immediate to 7 days, with delayed scans at 1-3 months. RESULTS: The choroid plexus and anterior pituitary gland enhanced within 10 minutes of infusion, with enhancement persisting up to 7 and 30 days, respectively. Exocrine (parotid, submandibular, sublingual, and lacrimal) glands also enhanced avidly as early as 1 hour postadministration, generally resolving by 1 month; 3 volunteers had residual exocrine gland enhancement, which resolved by 2 months in 1 and by 3 months in the other 2. Mangafodipir did not affect clinical parameters, laboratory values, or T1-weighted signal in the basal ganglia. CONCLUSIONS: Manganese ions released from mangafodipir successfully enable noninvasive visualization of intra- and extracranial structures that lie outside the blood-brain barrier without adverse clinical effects, setting the stage for future neuroradiologic investigation in disease.


Assuntos
Meios de Contraste/farmacologia , Ácido Edético/análogos & derivados , Imageamento por Ressonância Magnética/métodos , Fosfato de Piridoxal/análogos & derivados , Adulto , Encéfalo/diagnóstico por imagem , Meios de Contraste/farmacocinética , Ácido Edético/farmacocinética , Ácido Edético/farmacologia , Feminino , Voluntários Saudáveis , Humanos , Aumento da Imagem/métodos , Masculino , Fosfato de Piridoxal/farmacocinética , Fosfato de Piridoxal/farmacologia
18.
Colorectal Dis ; 21(12): 1445-1452, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31260148

RESUMO

AIM: Colonic volvulus is a common entity encountered by colorectal surgeons, but there are few reports of national data regarding postoperative outcomes. The aim of this study was to describe the volvulus population, 30-day outcomes following right- and left-sided colectomy and risk factors for postoperative complications. METHOD: The American College of Surgeons National Surgical Quality Improvement Program Database from 2012 to 2015 was utilized to identify patients with the diagnosis of 'volvulus' who underwent right- or left-sided colectomy. Primary outcomes were overall morbidity and mortality. RESULTS: A total of 2175 patients were identified (661 right colectomy and 1514 left colectomy). Risk factors for complications following right-sided colectomy included: age, male gender, smoker, systemic inflammatory response syndrome, sepsis, septic shock and American Society of Anesthesiologsts class ≥ 4. Risk factors for complications following left-sided colectomy included: age, male gender, systemic inflammatory response syndrome, sepsis and septic shock. CONCLUSION: Several nonmodifiable risk factors were identified for complications following colectomy for volvulus. These risk factors can be used in patient/family counselling and discharge planning.


Assuntos
Doenças do Ceco/cirurgia , Colectomia/estatística & dados numéricos , Volvo Intestinal/cirurgia , Complicações Pós-Operatórias/etiologia , Doenças do Colo Sigmoide/cirurgia , Idoso , Ceco/cirurgia , Colectomia/normas , Colo Sigmoide/cirurgia , Bases de Dados Factuais , Feminino , Humanos , Tempo de Internação/estatística & dados numéricos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/epidemiologia , Melhoria de Qualidade , Fatores de Risco , Resultado do Tratamento , Estados Unidos/epidemiologia
19.
Colorectal Dis ; 21(2): 209-218, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30444323

RESUMO

AIM: Ileal pouch-anal anastomosis (IPAA) failure occurs in approximately 5%-10% of patients. We aimed to compare short-term (30-day) postoperative outcomes associated with pouch revision and pouch excision using a large international database. Our null hypothesis was that there is no statistically significant difference in overall postoperative complications between patients selected for pouch revision vs pouch excision. METHODS: Using the American College of Surgeons National Surgical Quality Improvement Program Participant User File from 2005 to 2016 we identified patients who underwent either IPAA revision via the combined abdominoperineal approach [Current Procedural Terminology (CPT) 46712] or IPAA excision (CPT 45136). Differences in baseline characteristics and short-term outcomes between groups were assessed with univariate and matched analyses. RESULTS: We identified 593 reoperative IPAA procedures: revision group 78 (13%) and excision group 515 (86%). The groups had similar age and body mass index (kg/m2 ), but the revision group had more women (65.4% vs 51.8%, P = 0.02) and fewer were on chronic steroids (3.9% vs 17.9%, P = 0.0008) relative to the excision group. Revision IPAA patients were more likely to have received a preoperative transfusion (5.1% vs 0.97%, P = 0.02). Revision and excision were associated with similar postoperative length of stay (9.3 vs 8.6 days, 0.44), mortality (nil vs 0.58%, respectively; P = 0.99) and short-term morbidity (34.6% vs 40.2%, respectively; P = 0.88) at 30 days. CONCLUSIONS: Pouch revision and excision have comparable short-term postoperative outcomes, but pouch excision appears to be more commonly utilized. Increased awareness of the indications for pouch revision or referral to specialized centres may improve pouch revision rates.


Assuntos
Complicações Pós-Operatórias/cirurgia , Proctocolectomia Restauradora , Reoperação/estatística & dados numéricos , Estudos Transversais , Feminino , Mortalidade Hospitalar , Humanos , Tempo de Internação/estatística & dados numéricos , Masculino , Pessoa de Meia-Idade , Melhoria de Qualidade , Estados Unidos
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