![]() | Ralph John Nicholls |
Prominent publications by Ralph John Nicholls
OBJECTIVE: To describe national reoperation rates after elective and emergency colorectal resection and to assess the feasibility of using reoperation as a quality indicator derived from routinely collected data in England.
DESIGN: Retrospective observational study of Hospital Episode Statistics (HES) data.
SETTING: HES dataset, an administrative dataset covering the entire English National Health Service.
PARTICIPANTS: All patients undergoing a primary colorectal resection in England ...
Also Ranks for: Colorectal Surgery | episode statistics | health quality indicators | outcome measures | retrospective analysis |
Four‐week open‐label trial of metronidazole and ciprofloxacin for the treatment of recurrent or refractory pouchitis
[ PUBLICATION ]
BACKGROUND: Preliminary data suggest that short-term antibiotic therapy with a single drug is effective for the treatment of patients with pouchitis. However, some patients are resistant to treatment.
AIM: To evaluate the therapeutic efficacy of a prolonged course of a combination of two antibiotics in patients with refractory or recurrent pouchitis, as well as its impact on their quality of life.
METHODS: Patients with active refractory or recurrent pouchitis were recruited. This was ...
Also Ranks for: Patients Pouchitis | quality life | metronidazole ciprofloxacin | bowel disease | activity score |
One hundred and four patients were treated by restorative proctocolectomy with ileal reservoir for ulcerative colitis and familial polyposis. Three different designs of reservoir were used (triple loop 68, double loop 13, quadruple loop 23). There were no postoperative deaths but six (5.8 per cent) had the reservoir removed. Rates for pelvic sepsis were 25, 15 and 13 per cent, and for intestinal obstruction requiring laparotomy 14.7,0 and 8.6 per cent. Function was assessed in 88 ...
Also Ranks for: Ileal Reservoir | ulcerative colitis | restorative proctocolectomy | cent patients | familial adenomatous polyposis |
Anal endosonography for identifying external sphincter defects confirmed histologically
[ PUBLICATION ]
Defects of the external anal sphincter have traditionally been diagnosed by palpation, anal manometry and electromyography (EMG), but anal endosonography enables clear imaging of both the internal and external sphincter muscles. A study was performed to validate the interpretation of ultrasonographic images of external sphincter defects using histology as a 'gold standard'. In addition the accuracy of clinical examination, manometry, EMG mapping and anal endosonography in the diagnosis ...
Also Ranks for: Anal Endosonography | external sphincter | clinical examination | incontinence female | emg mapping |
A Comparison of Hand-Sewn Versus Stapled Ileal Pouch Anal Anastomosis (IPAA) Following Proctocolectomy
[ PUBLICATION ]
OBJECTIVE: Using meta-analytical techniques, the study compared postoperative adverse events and functional outcomes of stapled versus hand-sewn ileal pouch-anal anastomosis (IPAA) following restorative proctocolectomy.
BACKGROUND: The choice of mucosectomy and hand-sewn versus stapled pouch-anal anastomosis has been a subject of debate with no clear consensus as to which method provides better functional results and long-term outcomes.
METHODS: Comparative studies published between 1988 ...
Also Ranks for: Stapled Ipaa | pouch anal | sewn versus | postoperative complications | functional outcomes |
Risk of dysplasia and adenocarcinoma following restorative proctocolectomy for ulcerative colitis
[ PUBLICATION ]
OBJECTIVE: Restorative proctocolectomy (RPC) with or without mucosectomy is the treatment of choice for most patients with ulcerative colitis (UC) requiring surgery. The ileal mucosa in the reservoir and the anorectal columnar epithelium below the ileo-anal anastomosis are at risk of neoplastic transformation.
METHOD: The literature has been reviewed to identify patients developing this complication and an attempt has been made to develop a rational follow-up policy based on the data ...
Also Ranks for: Restorative Proctocolectomy | ulcerative colitis | patients dysplasia | ileal mucosa | 10 years |
Gastrointestinal transit and prolonged ambulatory colonic motility in health and faecal incontinence
[ PUBLICATION ]
BACKGROUND: Colonic motor function has not been studied in the ambulatory setting over a prolonged period in the unprepared state. Furthermore, the disturbance of this function in patients with faecal incontinence is unknown.
AIM: To study colonic function over two to three days in the ambulatory, unprepared state in health and in patients with idiopathic faecal incontinence.
METHODS: Six healthy women and six women with faecal incontinence and a structurally intact anal sphincter ...
Also Ranks for: Faecal Incontinence | gastrointestinal transit | ambulatory colonic | pressure waves | patients urge |
Bilateral Transcutaneous Posterior Tibial Nerve Stimulation for the Treatment of Fecal Incontinence
[ PUBLICATION ]
BACKGROUND: Unilateral posterior tibial nerve stimulation has been shown to improve fecal incontinence in the short term. Posterior tibial nerve stimulation is believed to work by stimulation of the ascending afferent spinal pathways. Bilateral stimulation may activate more of these pathways. This may lead to an improved therapeutic effect.
OBJECTIVE: The aim of this study was to assess the efficacy of bilateral transcutaneous posterior tibial nerve stimulation for fecal ...
Also Ranks for: Fecal Incontinence | tibial nerve | bilateral transcutaneous | 6 weeks | stimulation treatment |
Survival Outcome of Local Excision versus Radical Resection of Colon or Rectal Carcinoma
[ PUBLICATION ]
OBJECTIVE: To compare cancer-specific results of local excision with major resection.
BACKGROUND: Technological advances have enabled endoscopic and local excision techniques to be applied in the treatment of early colorectal cancer in preference to radical surgery.
METHOD: Patients with stage 0 (carcinoma in situ) or stage I (T1/2N0M0) adenocarcinoma of the colon or rectum undergoing surgery between 1998 and 2009 were included from the SEER (Surveillance, Epidemiology, and End Results) ...
Also Ranks for: Local Excision | survival outcome | radical resection | rectal cancer | neoadjuvant therapy |
Systematic review of sacral nerve stimulation for faecal incontinence and constipation
[ PUBLICATION ]
BACKGROUND AND METHOD: This systematic review assesses the efficacy and safety of sacral nerve stimulation (SNS) for faecal incontinence and constipation. Electronic databases and selected websites were searched for studies evaluating SNS in the treatment of faecal incontinence or constipation. Primary outcome measures included episodes of faecal incontinence per week (faecal incontinence studies) and number of evacuations per week (constipation studies).
RESULTS: From 106 potentially ...
Also Ranks for: Faecal Incontinence | sns constipation | sacral nerve stimulation | evacuations week | primary outcome measures |
Review article: restorative proctocolectomy, indications, management of complications and follow‐up – a guide for gastroenterologists
[ PUBLICATION ]
BACKGROUND: Restorative proctocolectomy with ileal pouch-anal anastomosis is the procedure of choice for the majority of patients with ulcerative colitis who require surgery. Over 2500 patients in the UK have undergone restorative proctocolectomy. It is now increasingly being performed in district general hospitals as well as in specialist inflammatory bowel disease units. Gastroenterologists are increasingly involved in the management of patients following restorative ...
Also Ranks for: Restorative Proctocolectomy | management patients | ulcerative colonic pouches | pelvic sepsis | ileal pouchanal anastomosis |
A prospective randomized trial was performed to compare complications and function after hand sewn ileoanal anastomosis with mucosectomy (group A) with stapled ileoanal anastomosis without mucosectomy (group B) during restorative proctocolectomy. Thirty-two age- and sex-matched consecutive patients under the care of one surgeon were randomized. The median duration of anal dilatation while making the anastomosis was 19 min (range 14-33 min) and 1 min (range 0-39 min) in groups A and B ...
Also Ranks for: Ileoanal Anastomosis | restorative proctocolectomy | anal function | prospective randomized trial | hand sewn |
Randomized controlled trial of percutaneous versus transcutaneous posterior tibial nerve stimulation in faecal incontinence
[ PUBLICATION ]
BACKGROUND: Percutaneous, transcutaneous and sham transcutaneous posterior tibial nerve stimulation was compared in a prospective blinded randomized placebo-controlled trial.
METHODS: Patients who had failed conservative treatment for faecal incontinence were randomized to one of three groups: group 1, percutaneous; group 2, transcutaneous; group 3, sham transcutaneous. Patients in groups 1 and 2 received 30-min sessions of posterior tibial nerve stimulation twice weekly for 6 weeks. In ...
Also Ranks for: Faecal Incontinence | tibial nerve | transcutaneous posterior | controlled trial | 6 weeks |
BACKGROUND: Anterior structural damage to the anal sphincter occurs in up to a third of women at first vaginal delivery, and of these a third have new bowel symptoms. The standard treatment for such structural damage is anterior overlapping anal-sphincter repair. We aimed to assess the long-term results of this operation.
METHODS: We assessed the long-term results in 55 consecutive patients who had had repair a minimum of 5 years (median 77 months [range 60-96]) previously. Questionnaire ...
Also Ranks for: Sphincter Repair | anterior anal | patients surgery | vaginal delivery | obstetric trauma |
Ralph John Nicholls: Influence Statistics
Concept | World rank |
---|---|
anal endosonography defects | #1 |
stellenwert chirurgie | #1 |
20 80 cent | #1 |
surgical treatment adenomas | #1 |
contrast pouchography | #1 |
salvage abdominal surgery | #1 |
local excision morphology | #1 |
concurrent pouchitis | #1 |
inflamed uninflamed pouches | #1 |
14 patients operation | #1 |
circumstances urgent surgery | #1 |
marks hospital experience | #1 |
complications temporary ileostomy | #1 |
water pouchmetrography | #1 |
non‐disseminated cancer | #1 |
minor leakage patients | #1 |
patients intact reservoir | #1 |
narrow rectum | #1 |
pre‐pouch ileitis | #1 |
unremitting pouchitis | #1 |
nocturnal fecal incontinence | #1 |
low pouch capacitance | #1 |
designs reservoir | #1 |
rectum adenomatous | #1 |
inflammation reservoir | #1 |
babies renal stones | #1 |
anteroposterior rectopexy | #1 |
metronidazole median | #1 |
reservoir mucosa months | #1 |
ileal pouch approach | #1 |
extramural spread mri | #1 |
mucosectomy risk | #1 |
aged defecation | #1 |
ulcer syndrome | #1 |
stimulus maximum relaxation | #1 |
week median frequency | #1 |
risk death colectomy | #1 |
transanal prolapse | #1 |
radical restorative surgery | #1 |
pouchvaginal fistula difference | #1 |
anterior mucosal prolapse | #1 |
median ability | #1 |
sterile sonicates | #1 |
ileoanal pouch compliance | #1 |
implantable neurostimulators life | #1 |
extramural spread survival | #1 |
length prepouch ileitis | #1 |
pouchitis mononuclear cells | #1 |
resistant pouchitis | #1 |
nbt multivariate analysis | #1 |
Key People For Restorative Proctocolectomy
Ralph John Nicholls:Expert Impact
Concepts for whichRalph John Nichollshas direct influence:Restorative proctocolectomy, Faecal incontinence, Ulcerative colitis, Sacral nerve stimulation, Rectal cancer, Fecal incontinence, Internal anal sphincter, Nerve stimulation.
Ralph John Nicholls:KOL impact
Concepts related to the work of other authors for whichfor which Ralph John Nicholls has influence:Ulcerative colitis, Rectal cancer, Fecal incontinence, Restorative proctocolectomy, Inflammatory bowel disease, Sacral nerve stimulation, Ileal pouch.
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