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Biomedical subjects

J F Mayberry

Publications and source records attributed to J F Mayberry.

At least 37 records · Page 2Linked to original sources

How gastroenterologists screen for colonic cancer in ulcerative colitis: an analysis of performance.

BACKGROUND: The aim of this study was to assess the colorectal cancer surveillance practices of British gastroenterologists for patients with ulcerative colitis. METHODS: A questionnaire that investigated aspects of surveillance in patients with ulcerative colitis was mailed to all consultant gastroenterologists in the U.K. (n = 413). RESULTS: Three hundred forty-one questionnaires were returned (response rate 83%). Ninety-four percent of consultants practice cancer surveillance in ulcerative colitis, with 35% maintaining a registry of patients in surveillance programs. All gastroenterologists perform surveillance in patients with pancolitis, 24% in those with left-sided colitis and 2% in patients with proctitis. The mean duration of disease before surveillance is commenced is 9.2 years for pancolitis and 12.4 years for left-sided colitis (p < 0.0001). Only 4% of gastroenterologists routinely offer patients with disease of more than 10 years' duration a prophylactic colectomy. Colonoscopies are conducted by an accredited gastroenterologist in 65% of cases and biopsies are reviewed by specialists in gastrointestinal pathology in 45%. When histology reveals low-grade dysplasia only 4% advise colectomy and when high-grade dysplasia is found 53% recommend colectomy. Sixteen percent of gastroenterologists were unaware of the significance of a dysplasia associated lesion or mass. CONCLUSION: The majority of gastroenterologists practice surveillance on a disorganized basis. There is inconsistency in the management of patients with dysplasia and education of gastroenterologists is needed.

Biopsy↗

Measles, month of birth, and Crohn's disease.

BACKGROUND: The rise in the incidence of Crohn's disease (CD) suggests the role of an environmental factor in the development of the disease in susceptible individuals. Perinatal exposure to infection has been proposed as such an environmental factor. AIM: To investigate the influence of birth date on the development of CD in later life. PATIENTS AND METHOD: Four registers of patients with CD, diagnosed from 1972 to 1989, were combined, and data from 1624 patients were examined. The birth dates of CD patients were compared with national birth figures for three decades (1941-50, 1951-60, and 1961-70) to avoid temporal changes in birth trends, and year of birth was compared with epidemic measles years between 1951 and 1967. Risk ratios with 95% confidence intervals (CI) and chi(2) tests were performed. RESULTS: There were marginal differences between the birth dates of the CD patients and those predicted from the general population. Further analysis of both season of birth and year halves revealed a very weak association with the first half of the year (relative risk 1.14 (95% CI 1.01-1.30)). There was no association between developing CD and birth during measles epidemics between 1951 and 1967. CONCLUSIONS: In utero or perinatal exposure to seasonal environmental factors are unlikely potential aetiological agents in the later development of CD.

Adult↗

Doctor or nurse? The patients' choice.

This project's aim was to assess patients perceived need for a specialist nurse in inflammatory bowel disease. A letter was sent to 64 patients with a summary of the potential role of a specialist nurse. Patients were asked to complete a questionnaire of 10 scenarios on who would be their preferred provider on the range of issues. There were 35 (55%) replies. When comparing the results between the consultant and the specialist nurse patients preferred to see a specialist nurse significantly in four scenarios, and patients preferred to see the consultant significantly in two scenarios. The results indicate that patients feel specialist nurses would have more time to discuss issues and they do not want to bother the busy doctors with them. But they do want doctors to carry out the medical aspects of their care.

Attitude to Health↗

Retrospective case series analysis of patients with inflammatory bowel disease on azathioprine. A district general hospital experience.

OBJECTIVES: The aim of this study was to look at our practice of using azathioprine and to compare our results with those in published trials both from the point of view of response and also the side-effect profile. DESIGN: A retrospective case series analysis was done on patients with inflammatory bowel disease (IBD) who were on azathioprine at Leicester General Hospital. METHODS: 111 patients (47 males, 64 females, mean age 35.3 years) were included from gastroenterology outpatients records between November 1997 and August 1998. Clinical and demographic details were collected. Response in Crohn's disease was determined using the Harvey-Bradshaw index. In case of ulcerative colitis the following parameters were used: stool frequency; rectal bleeding, weight gain, and general well-being. Logistic regression was performed to look at the influence of age, sex and diagnosis in relation to the response/relapse rate. RESULTS: The average duration of treatment with azathioprine was 28.6 months. The starting dose of 1.53 mg/kg was similar to the maintenance dose (1.51 mg/kg). 58 patients had Crohn's disease and 53 patients were diagnosed with ulcerative colitis. 85 patients were steroid-dependent, 9 steroid-resistant, and 17 patients were started on azathioprine on the basis of extensive disease either seen at the time of endoscopy or radiologically. Improvement in clinical features at 3, 6 and 12 months was 69.5, 77 and 84.1%, respectively. 74% patients showed an improvement in relapse rates during the first year on azathioprine compared to 1 year prior to treatment. 68% patients who had shown improvement at 1 year were no longer taking steroids (p = 0.002). Logistic regression did not show any statistically significant influence of age, sex or diagnosis on response. 4.5% patients had leukopenia requiring dose reductions. Severe leukopenia (leukocyte count <2.5 x 10(9)/l) occurred in 3.6% patients. CONCLUSIONS: Response rates in our IBD patients on azathioprine are comparable with those of the published data despite using a relatively smaller dose.

Adolescent↗

A study of colo-rectal carcinoma in the Asian and European populations in the city of Leicester from 1981 to 1991.

For many years clinical reports have suggested that colo-rectal cancer is uncommon in the Asian population resident in England and a report in 1990 confirmed this in Asians living in Bradford. This study aims to establish the incidence of colo-rectal cancer in the Asian population resident in the city of Leicester during the 11 y period 1 January 1981-31 December 1991. The relative frequency of colo-rectal carcinoma in Asians compared to Europeans over the period studied was 0.16 (Asian/European, 95% confidence interval (CI) 0.04-0.75). This difference was statistically significant and further analysis showed that there was a real trend with an increased relative frequency amongst the younger age groups. Although there was a significantly lower incidence of colo-rectal carcinoma in the Asian population in Leicester city over the period studied it is unknown whether this is due to environmental or genetic factors. During the next decade it is likely to become clearer as to whether this difference will persist or whether there will be an increase in the incidence of colo-rectal carcinoma in Asians in Leicestershire.

Adolescent↗

Social implications of childhood Crohn's disease.

BACKGROUND: Children with Crohn's disease may have an impaired quality of life. METHODS: A validated questionnaire was mailed to the parents of all child members of Crohn's in Childhood Research Association (CICRA) (age range, 5-17 years). It investigated aspects of the quality of life of children with Crohn's disease. Sixty-four questionnaires were returned together with another 35 from those outside the defined age range. Patients in the latter group were not included in the analysis. RESULTS: Of the children investigated, 60% had significant absences from school, with a mean of 3+/-2.8 months' absence in the previous year. Most (53%) thought that their teachers knew nothing about Crohn's disease, and 50% thought that teachers were unsympathetic. Of the 24 who had taken examinations 80% thought they had underachieved because of ill health. Sixty-seven percent of children were unable to participate in sports on a regular basis, 60% felt unable to leave the house, and 50% were unable to play with their friends. Information about Crohn's disease had predominantly come from doctors (89%), information booklets (83%), and nursing staff (42%). The commonest questions asked by the children were: what is Crohn's disease (50%), why me (64%), will it affect my schooling (52%), and will it affect my chances of getting a job (67%). CONCLUSION: Children with Crohn's disease have a significantly impaired quality of life. They fear everyday childhood activities and fear for their future. These children need sympathetic management, and effort should be concentrated on improving their day-to-day existence to enable them to lead as normal a life as possible.

Child↗

The effects of migration on ulcerative colitis: a three-year prospective study among Europeans and first- and second- generation South Asians in Leicester (1991-1994).

OBJECTIVE: Our aim was to measure prospectively the incidence of ulcerative colitis in Leicester City and to compare this with a previous retrospective study in the same area. We also sought to compare the incidence and disease extent in the European community with that of the South Asian community and to compare the disease extent between first- and second-generation South Asian migrants. METHODS: A 3-yr prospective study of ulcerative colitis in the city of Leicester took place from October 1, 1991 to September 30, 1994 and included all cases resident in Leicester City and diagnosed as having ulcerative colitis, regardless of the extent and severity of the disease. RESULTS: Extensive colitis was commoner in second-generation migrants than in the first generation (chi2 = 4.3, p = 0.04) and was comparable to the European community. The annual average incidence of ulcerative colitis was 9.1/10(5) population/yr (95% confidence interval [CI] 7.1-11.3), which is similar to the previous retrospective study. However, the annual average incidence of ulcerative colitis in the European population was 7.0/10(5) population/yr (95% CI 5-9.5), whereas that of the South Asian population was 17.2/10(5) population/yr (95% CI 11.8-24.3), confirming that the risk of ulcerative colitis in this particular community is exceptionally high. CONCLUSIONS: These early results suggest that the disease pattern follows that of the indigenous population after only one generation and requires monitoring over the next decade. The incidence of ulcerative colitis in the South Asian population is high and continuing to rise.

Adult↗

The Crohn's and Colitis Knowledge Score: a test for measuring patient knowledge in inflammatory bowel disease.

OBJECTIVE: The aim of this study was to develop a valid and reliable questionnaire assessing patient knowledge of inflammatory bowel disease (IBD) and its treatment--the Crohn's and Colitis Knowledge (CCKNOW) Score. METHODS: A total of 30 multiple choice questions were constructed into a draft questionnaire. This was piloted on a random selection of participants with differing IBD knowledge levels; junior doctors, nurses, and ward clerks. Factor analysis eliminated questions with poor discriminant ability. The resulting 24-item questionnaire (CCKNOW score) was retested on the three groups, and a Kruskal-Wallis test determined the questionnaire's ability to discriminate between the groups. Reliability and readability were tested using Cronbach's a and the Flesch Kincaid reading score. The validated CCKNOW was then tested on patients from the Leicestershire IBD database. RESULTS: CCKNOW scores differed significantly across the groups of doctors, nurses, and ward clerks (median 22, 16, and five, respectively) T = 40.35, p < 0.0001. The reliability was very good with a Cronbach's alpha of 0.95 and the readability was also high. The median score on the CCKNOW for IBD patients was 10, with no significant difference between ulcerative colitis and Crohn's disease. Patients who are members of NACC (National Association of Crohn's and Colitis) achieve statistically significantly higher scores than do nonmembers (difference in medians 4, 95% confidence interval 4-6, p < 0.0001). CONCLUSIONS: The CCKNOW score provides a valuable index of overall knowledge. It is self-administered and psychometric tests show it to be valid, reliable, and readable. It may be used in the future as a tool to evaluate patient education programs.

Adult↗

Production and evaluation of guidelines for the management of inflammatory bowel disease: the Leicester experience.

Consensus guidelines for the management of patients with inflammatory bowel disease were produced by gastroenterologists, gastrointestinal surgeons and a cross-section of general practitioners (GPs) from Leicestershire in order to develop a seamless pattern of care with a common approach to diagnosis and treatment. It was hoped that the guidelines would encourage a movement towards care in the community for many patients with stable disease and so speed up new consultation rates. The study then assessed the impact of these guidelines on the referral letters of GPs to hospital consultants, the prediction of disease and adherence to them on re-referring patients after discharge. The guidelines were distributed to all 487 GPs in the Leicester Health Authority area and the gastroenterology teams within the hospitals. The value of the guidelines was assessed by an audit of referral letters, the length of time from referral letter to out-patient appointment, both before and after the launch of the guidelines, adherence to the guidelines on re-referral, and monitoring the outcome of the discharged patients. Whilst the guidelines may have helped GPs to manage stable patients in the community, the content of referral letters and the diagnostic abilities of GPs were not seen to improve since the launch of the guidelines. However, only 5% of stable patients who were discharged from one clinic were re-referred for inflammatory bowel disease.

Attitude↗

Issues of consent in colonoscopy: if a patient says 'stop' should we continue?

Colonoscopy is generally performed under intravenous sedation, which may alter a patient's responses and perception. What should be done if, during the procedure, a patient withdraws the consent previously given? The views of gastroenterologists and patients were ascertained by mailing questionnaires to 100 members of the British Society of Gastroenterology and to 100 patients who had undergone colonoscopy with intravenous sedation. Only 1 of 59 eligible consultants who replied said they would stop the procedure after a single request, but a further 51 would stop if repeatedly asked to do so. Of the remaining 7 who would complete the procedure, 1 nevertheless believed that a sedated patient is capable of making a rational decision. Of the 51 patients who returned a usable questionnaire, 25 thought that the procedure should be stopped immediately following a request, while 26 felt that the doctor should continue. The divergent and sometimes inconsistent views found in this study highlighted the need for further clarification of the issue of informed consent for procedures conducted with the patient under sedation.

Anesthesia, Intravenous↗

Effect of a low-impact exercise program on bone mineral density in Crohn's disease: a randomized controlled trial.

BACKGROUND & AIMS: Physical exercise increases bone mineral density (BMD) in healthy young adults and slows the rate of bone loss in later life. The aim of this randomized controlled trial was to investigate the effect of exercise on BMD in patients with Crohn's disease. METHODS: A total of 117 patients with Crohn's disease were randomized to a control group or a low-impact exercise program of increasing intensity. BMD (g/cm2) was measured at baseline and 12 months at the hip and spine (L2-L4) by dual energy x-ray absorptiometry. RESULTS: Nonsignificant gains in BMD occurred at the hip and spine in the exercise group compared with controls (P > 0.05). In fully compliant patients, BMD increased by 3.54% (7.95%) at the femoral neck, 2.97% (7.7%) at the spine, 4.1% (10.26%) at Ward's triangle, and 7.77% (8.2%) at the greater trochanter. Compared with controls, gain in BMD at the greater trochanter was statistically significant (difference in means, 4.67; 95% confidence interval, 0.86-8.48; P = 0.02). Increases in BMD were significantly related to the number of exercise sessions completed (femoral neck; r = 0.28; 95% confidence interval, 0.10-0.45; P = 0.04). CONCLUSIONS: Progressive low-impact exercise is a potentially effective method of increasing BMD in Crohn's disease. If sustained, the increases in BMD may reduce the risk of osteoporotic fracture.

Adult↗