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Dive into the research topics where Jim Khan is active.

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Featured researches published by Jim Khan.


Colorectal Disease | 2015

Major postoperative complications following elective resection for colorectal cancer decrease long-term survival but not the time to recurrence.

Manfred Odermatt; D. Miskovic; Karen Flashman; Jim Khan; A. Senapati; D. P. O'Leary; M. R. Thompson; Amjad Parvaiz

The aim of the study was to determine the effect of major complications after colorectal cancer surgery on survival and time to recurrence.


Colorectal Disease | 2011

Iatrogenic perforation at colonic imaging

Jim Khan; B. J. Moran

Aim  Adequate colonic imaging is generally an invasive procedure with attendant risks, particularly perforation. Endoscopy, barium enema and computed tomographic colonography (CTC) are the main techniques for investigating patients with symptoms of, or screening for, colorectal cancer. The potential complications of these investigations have to be weighed against the benefits. This article reviews the literature on the incidence, presentation and management of iatrogenic colonic perforation at colonic imaging.


Colorectal Disease | 2016

Three-step standardized approach for complete mobilization of the splenic flexure during robotic rectal cancer surgery

Jamil Ahmed; M. A. Kuzu; Nuno Figueiredo; Jim Khan; A. Parvaiz

The aim of this technical note is to describe a three‐step technique for expeditious and complete mobilization of the splenic flexure (CMSF) during single docking totally robotic rectal cancer surgery.


Colorectal Disease | 2017

Robotic versus laparoscopic rectal surgery in high-risk patients

Jamil Ahmed; Han Cao; Sofoklis Panteleimonitis; Jim Khan; Amjad Parvaiz

Laparoscopic rectal surgery is associated with a steep learning curve and high conversion rate despite progress in equipment design and consistent practice. The robotic system has shown an advantage over the laparoscopic approach due to stable three‐dimensional views, improved dexterity and better ergonomics. These factors make the robotic approach more favourable for rectal surgery. The aim of this study was to compare the perioperative outcomes of laparoscopic and robotic rectal cancer surgery in high‐risk patients.


Surgical Endoscopy and Other Interventional Techniques | 2017

Prior experience in laparoscopic rectal surgery can minimise the learning curve for robotic rectal resections: a cumulative sum analysis.

Manfred Odermatt; Jamil Ahmed; Sofoklis Panteleimonitis; Jim Khan; Amjad Parvaiz

BackgroundThe learning curve for robotic colorectal surgery is ill-defined. This study aimed to investigate the learning curve of experienced laparoscopic rectal surgeons when starting with robotic total mesorectal excision (TME) using cumulative sum (CUSUM) charts.MethodsThis retrospective case series analysed patients who underwent curative and elective laparoscopic or robotic TMEs for rectal cancer performed by two surgeons. The first consecutive robotic TME cases of each surgeon were 1:1 propensity score matched to their laparoscopic TME cases using age, body mass index, American Society of Anesthesiologists grade, T stage (AJCC) and tumour location height. The matched laparoscopic cases defined individual standards for the quality indicators: operating time, R stage, lymph node harvest, length of hospital stay and major complications (Clavien–Dindo grade 3–5). Deviation of more than a quarter of a standard deviation from the mean for the continuous indicators, or exceeding the observed risk for the binary indicators was defined as off-target with an upward inflection in the CUSUM curve.ResultsFrom 2006 to 2015, 384 (294 laparoscopic; 90 robotic) TMEs met the inclusion criteria. Surgeon A performed 206 (70.1%) of the laparoscopic and 43 (47.8%) of the robotic cases. Surgeon B performed 88 (29.9%) of the laparoscopic and 47 (52.2%) of the robotic cases. After matching, no covariate exhibited an absolute standardised mean difference >0.25. For surgeon A, the CUSUM curves showed no apparent learning process compared to his laparoscopic standards. For surgeon B, a learning process for operation time, lymph node harvest and major complications was demonstrated by an initial upward inflection of the CUSUM curves; after 15 cases, all quality indicators were generally on target.ConclusionsFor experienced laparoscopic colorectal surgeons, the formal learning process for robotic TME may be short to reach a similar performance level as obtained in conventional laparoscopy.


Colorectal Disease | 2012

The selective use of splenic flexure mobilization is safe in both laparoscopic and open anterior resections.

M. R. Marsden; John Conti; S. Zeidan; Karen Flashman; Jim Khan; Daniel O’Leary; Amjad Parvaiz

Aim  Splenic flexure mobilization (SFM) is standard practice in anterior resections. No previous studies have compared outcomes with and without SFM in laparoscopic and open colorectal cancer surgery. This study aimed to determine whether routine or selective SFM should be advised.


Surgical Endoscopy and Other Interventional Techniques | 2012

Impact of the English National Training Programme for laparoscopic colorectal surgery on training opportunities for senior colorectal trainees

Anil K. Hemandas; Shady Zeidan; Karen Flashman; Jim Khan; Amjad Parvaiz

BackgroundThere is growing concern that the recently introduced National Training Programme for consultants in laparoscopic colorectal surgery will have a negative impact on the training of senior colorectal trainees by minimizing the opportunities available. This study aimed to determine the impact that local implementation of the National Training Programme has had on the operating experience of senior colorectal trainees.MethodsA prospective study was conducted at a designated national training center for laparoscopic colorectal surgery based in a large district general hospital in England, United Kingdom. All patients undergoing laparoscopic colorectal surgery in our unit between October 2006–September 2008 and October 2008–September 2010 were included in the study. The study variables included number and type of procedure, patient demographics, American Society of Anesthesiology grade, body mass index, conversion rates, previous abdominal surgery, and median operating time. The main outcome measure was the number of procedures performed by senior colorectal trainees before and after commencement of National Training Programme training in October 2008.ResultsA total of 746 laparoscopic colorectal resections were performed. Senior colorectal trainees performed 175 cases before commencement of the National Training Programme and 184 cases afterward. The difference was not significant. National Training Programme consultants performed 126 cases. Data were analyzed using Fisher’s exact test and the Mann–Whitney U test. The study groups were found to be well matched. The median operating time was significantly longer after commencement of the National Training Programme. The study was limited in terms of ability to extrapolate results to smaller units wishing to participate in training programs.ConclusionImplementation of the National Training Programme in our hospital has not had a negative impact on the training opportunities for senior colorectal trainees. However, any unit wishing to participate in the National Training Programme must ensure that an adequate operative caseload and extra resources for operative lists are available for training.


Cirugia Espanola | 2017

Cirugía laparoscópica en el tratamiento de la enfermedad de Crohn del área ileocecal: impacto de la obesidad en los resultados postoperatorios inmediatos

David Parés; Awad Shamali; Karen Flashman; Daniel O’Leary; A. Senapati; John Conti; Amjad Parvaiz; Jim Khan

INTRODUCTION The aim of our study was to analyse the short-term outcomes of laparoscopic surgery for a no medical responding ileocolic Cohns disease in a single centre according to the presence of obesity. METHODS A cross-sectional study was performed including all consecutive patients who underwent laparoscopic resection for ileocecal Crohns disease from November 2006 to November 2015. Patients were divided according to body mass index ≥ 30 kg/m2 in order to study influence of obesity in the short-term outcomes. The following variables were studied: characteristics of patients, surgical technique and postoperative results (complications, reintervention, readmission and mortality) during first 30 postoperative days. RESULTS A total of 100 patients were included (42 males) with a mean age of 39.7±15.2 years (range 18-83). The overall complication rate was 20% and only 3 patients had an anastomotic leak. Seven patients needed reoperation in the first 30 days postop (7%). The median postoperative length of hospitalization was 5.0 days. Operative time was significantly longer in patients with obesity (130 vs. 165minutes, P=.007) but there were no significant differences among the postoperative results in patients with and without obesity. CONCLUSIONS This study confirmed that laparoscopic approach for ileocecal Cohns disease is a safety and feasible technique in patients with obesity. In this last group of patients we only have to expect a longer operative time.


Surgical Innovation | 2018

The Future of Rectal Cancer Surgery: A Narrative Review of an International Symposium:

F. Borja de Lacy; Sami A. Chadi; Mariana Berho; R. J. Heald; Jim Khan; Brendan Moran; Yves Panis; Rodrigo Oliva Perez; Paris Tekkis; Neil J. Mortensen; Antonio M. Lacy; Steven D. Wexner; Manish Chand

Surgery remains the mainstay of curative treatment for primary rectal cancer. For mid and low rectal tumors, optimal oncologic surgery requires total mesorectal excision (TME) to ensure the tumor and locoregional lymph nodes are removed. Adequacy of surgery is directly linked to survival outcomes and, in particular, local recurrence. From a technical perspective, the more distal the tumor, the more challenging the surgery and consequently, the risk for oncologically incomplete surgery is higher. TME can be performed by an open, laparoscopic, robotic or transanal approach. There is a lack of consensus on the “gold standard” approach with each of these options offering specific advantages. The International Symposium on the Future of Rectal Cancer Surgery was convened to discuss the current challenges and future pathways of the 4 approaches for TME. This article reviews the findings and discussion from an expert, international panel.


Scandinavian Journal of Surgery | 2018

Laparoscopic Redo Ileocolic Resection for Crohn’s Disease in Patients with Previous Multiple Laparotomies:

V. Celentano; F. Sagias; Karen Flashman; John Conti; Jim Khan

Purposes: Over 80% of patients with primary ileocolic Crohn’s disease have a surgical resection within 10 years of diagnosis, and 40%–50% of them need further surgery within 15 years. Laparoscopic surgery can be challenging due to a thickened mesentery and the potential for fistulas, abscesses, and phlegmons. Aim of this study is to analyze the short-term outcomes of laparoscopic redo ileocolic resections for Crohn’s disease in patients with previous multiple laparotomies. Methods: All patients undergoing laparoscopic surgery for ileocolic Crohn’s disease from March 2006 to February 2017 were prospectively evaluated. Short term outcomes of laparoscopic ileocolic resection were compared between patients with previous multiple major surgeries and recurrent Crohn’s disease, and patients undergoing surgery for the first presentation of Crohn’s disease and no history of previous surgery. Conversion rate and 30-day morbidity were the primary outcomes. Reoperations, readmissions, operating time and length of stay were the secondary outcomes. Results: 29 patients with recurrent Crohn’s disease and previous multiple laparotomies were included: the number of laparotomies these patients previously underwent was 2 in 19 cases (65.5%), 3 in 9 (31%), and 4 in 1 (3.5%). In total, 90 patients with no history of any previous abdominal surgery, who underwent laparoscopic ileocecal resection for Crohn’s disease, represented the control group. No differences were found in morbidity and conversion rate. Operating time was longer in patients with history of previous abdominal surgery. Conclusion: Laparoscopic redo ileocolic resection for Crohn’s disease is feasible and safe in patients with previous multiple laparotomies at the expense of longer operating time.

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Amjad Parvaiz

Queen Alexandra Hospital

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Karen Flashman

Queen Alexandra Hospital

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Jamil Ahmed

Queen Alexandra Hospital

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John Conti

Queen Alexandra Hospital

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Sam Stefan

Queen Alexandra Hospital

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A. Senapati

Queen Alexandra Hospital

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Awad Shamali

Queen Alexandra Hospital

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David Parés

Queen Alexandra Hospital

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