Omar Faiz

ORCID: 0000-0003-1117-1588
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About
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Research Areas
  • Colorectal Cancer Surgical Treatments
  • Colorectal Cancer Screening and Detection
  • Inflammatory Bowel Disease
  • Diverticular Disease and Complications
  • Cardiac, Anesthesia and Surgical Outcomes
  • Anorectal Disease Treatments and Outcomes
  • Microscopic Colitis
  • Gastric Cancer Management and Outcomes
  • Genetic factors in colorectal cancer
  • Colorectal and Anal Carcinomas
  • Esophageal and GI Pathology
  • Appendicitis Diagnosis and Management
  • Pancreatic and Hepatic Oncology Research
  • Enhanced Recovery After Surgery
  • Stoma care and complications
  • Esophageal Cancer Research and Treatment
  • Gastrointestinal Tumor Research and Treatment
  • Neuroendocrine Tumor Research Advances
  • Pelvic floor disorders treatments
  • Colorectal Cancer Treatments and Studies
  • Medical Coding and Health Information
  • Clinical practice guidelines implementation
  • Autoimmune and Inflammatory Disorders
  • Hernia repair and management
  • Eosinophilic Esophagitis

West Health
2025

Imperial College London
2015-2024

St Mark's Hospital
2015-2024

Western Eye Hospital
2023

St Mary's Hospital
2012-2023

Karolinska University Hospital
2023

St. Vincent's University Hospital
2021-2022

University Hospital of Wales
2022

St. Mark's Hospital
2008-2021

London North West Healthcare NHS Trust
2016-2021

10.1016/s0140-6736(18)32521-2 article EN The Lancet 2019-04-25

To compare short-term outcomes of open and minimally invasive esophagectomy (MIE) for cancer.Numerous studies have demonstrated the safety possible advantages MIE in selected cohorts patients. The increasing use is not coupled with conclusive evidence its benefits over "open" esophagectomy, especially absence randomized trials.Hospital Episode Statistics data were analyzed from April 2005 to March 2010. This a routinely collected database all English National Health Service Trusts. Office...

10.1097/sla.0b013e31823e39fa article EN Annals of Surgery 2011-12-15

Abstract Background There is increasing evidence of variable standards care for patients undergoing emergency general surgery in the National Health Service (NHS). The aim this study was to quantify and explore variability mortality amongst high-risk admissions English NHS hospital Trusts. Methods Hospital Episode Statistics (HES) database used identify diagnoses (greater than 5 per cent national 30-day rate). Adults admitted Trusts with these between 2000 2009 were included study....

10.1002/bjs.9208 article EN British journal of surgery 2013-07-17

Obesity increases the risk of several types cancer. Whether bariatric surgery influences obesity-related cancer is not clear. This study aimed to uncover hormone-related (breast, endometrial and prostate), colorectal oesophageal cancers following obesity surgery.This national population-based cohort used data from Hospital Episode Statistics database in England collected between 1997 2012. Propensity matching on sex, age, co-morbidity duration follow-up was compare among obese individuals...

10.1002/bjs.10914 article EN British journal of surgery 2018-07-13

This study aims to determine the role of neutrophil lymphocyte ratio (NLR) as a prognostic marker for patients with nonmetastatic colorectal cancer undergoing curative resection.An NLR reflects systematic inflammatory response, some evidence suggesting that an elevated preoperative more than 5.0 is associated poorer survival in cancer.Data from 506 consecutive diagnosis adenocarcinoma surgical resection between 2006 and 2011 were included. Receiver operating characteristic curve analysis was...

10.1097/sla.0000000000000216 article EN Annals of Surgery 2013-10-07

Healthcare professionals can be seriously affected when they are involved in major clinical incidents. The impact of such incidents on staff is particular relevance to surgery, as the operating room one highest-risk areas for serious complications. This qualitative study aimed assess personal and professional surgical complications surgeons.This single time point semistructured, individual interviews with general vascular surgeons, consultants senior registrars from two National Health...

10.1002/bjs.9308 article EN British journal of surgery 2013-11-14

<b>Objective</b> To describe national reoperation rates after elective and emergency colorectal resection to assess the feasibility of using as a quality indicator derived from routinely collected data in England. <b>Design</b> Retrospective observational study Hospital Episode Statistics (HES) data. <b>Setting</b> HES dataset, an administrative dataset covering entire English National Health Service. <b>Participants</b> All patients undergoing primary England between 2000 2008. <b>Main...

10.1136/bmj.d4836 article EN cc-by-nc BMJ 2011-08-16

Abstract Aim Our aim was to determine the frequency and economic impact of anastomotic leakage (AL) at local national levels in E ngland. Method All patients who underwent AR Oxford between 2007 2009 were evaluated for AL . H ospital pisode S tatistics ( HES ) data used reoperation rates after elective n = 23 388) ngland 2000 2008. Hospital episode remuneration costs calculated by commissioning department compared with D epartment ealth DH reference index costs. Results The following...

10.1111/codi.12125 article EN Colorectal Disease 2013-01-19

Abstract Background Complication management appears to be of vital importance differences in survival following surgery between surgical units. Failure-to-rescue (FTR) rates have not yet distinguished from general medical complications. The aim this study was assess whether variability exists FTR after reoperation for serious complications colorectal cancer resections England. Methods Hospital Episode Statistics (HES) database used identify patients undergoing primary resection 2000 and 2008...

10.1002/bjs.7648 article EN British journal of surgery 2011-08-25

Many uncertainties remain regarding optimal therapies and strategies for the treatment of inflammatory bowel disease. Setting research priorities addressing requires a partnership between health care professionals, patients organisations supporting patients. We aimed to use structure James Lind Alliance Priority Partnership, which has been used in other disease areas, identify prioritise unanswered questions about treatments disease.The Partnership uses methods agreed adopted areas work with...

10.1093/ecco-jcc/jjw144 article EN cc-by Journal of Crohn s and Colitis 2016-08-09

In elderly and comorbid patients with rectal cancer, radical surgery is associated significant perioperative mortality. Data suggest that a watch-and-wait approach where complete clinical response obtained after neoadjuvant chemoradiotherapy might be oncologically safe.This study aimed to determine whether patient age comorbidity should influence surgeon decision making obtained.Decision-analytic modeling consisting of tree Markov chain simulation was used. Modeled outcome parameters were...

10.1097/dcr.0000000000000281 article EN Diseases of the Colon & Rectum 2015-01-13

To determine the difference in in-hospital mortality and length of hospital stay (LOS) after esophagectomy between United States England.Since 2001, complex procedures such as have been centralized England, but no formal plan for centralization exists.Patients who underwent cancer 2005 2010 were identified from Nationwide Inpatient Sample (United States) Hospital Episodes Statistics (England). In-hospital LOS compared.There 7433 esophagectomies performed 66 English hospitals 5858 resections...

10.1097/sla.0000000000000805 article EN Annals of Surgery 2014-06-29
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