Raed Tayyem
Whittington Hospital
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Publication
Featured researches published by Raed Tayyem.
The Patient: Patient-Centered Outcomes Research | 2011
Raed Tayyem; Abdulmajid Ali; John Atkinson; Colin R. Martin
The worldwide prevalence of obesity has been steadily rising, reaching alarming levels. Obesity, particularly morbid obesity, carries significant health risks to the lives of affected patients, including physical, psychological, and social co-morbidities. Bariatric surgery provides the only effective and sustainable approach to treat morbid obesity and reverse its adverse effects.The reduction in well-being due to poor health in obesity may have adverse effects on health-related quality of life (HR-QOL). There are numerous studies reporting HR-QOL in bariatric patients; however, there is a paucity of studies examining the psychometric properties of the HR-QOL instruments used. The main aim of this review is to identify the instruments used in assessing HR-QOL in bariatric patients and evaluate their content validity. We believe that this is the first systematic review of its kind to look in depth at various generic- and obesity-specific HR-QOL instruments that were used in bariatric surgery, and to analyze their content validity.A systematic and structured search of Ovid databases (1980–2009) was conducted using terms synonymous with bariatric surgery, combined with terms synonymous with HR-QOL instruments. A total of 112 relevant studies were identified, detailing the use of eight generic, nine obesity-specific, and numerous other condition-specific instruments.A conceptual framework comprising 20 domains pertinent to bariatric surgery and morbid obesity was proposed, against which the identified generic- and obesity-specific instruments were assessed. The results of this assessment showed that neither the generic nor the specific instruments were adequate instruments in terms of content validity.Given the lack of adequate HR-QOL instruments in the rapidly developing field of bariatric surgery, we suggest building a new bariatric-specific instrument informed by the proposed framework, which will then enable clinicians to assess the full impact of morbid obesity and bariatric surgery on HR-QOL.
Obesity Surgery | 2009
Raed Tayyem; Tamim Siddiqui; Abdulmajid Ali
Unexpected midgut malrotation (MM) was encountered during laparoscopic Roux-en-Y gastric bypass for obesity. This procedure, being performed for the first time within our trust, was completed nonetheless without any postoperative complications. MM is a rare condition in adults, with a comprehensive literature review finding a paucity of reports of MM during bariatric procedures.
International Journal of Surgery | 2014
Ahmad Zarour; Ayman El-Menyar; Mazen Khattabi; Raed Tayyem; Osama Hamed; Ismail Mahmood; Husham Abdelrahman; William Chiu; Hassan Al-Thani
OBJECTIVES To develop a scoring tool based on clinical and radiological findings for early diagnosis and intervention in hemodynamically stable patients with traumatic bowel and mesenteric injury (TBMI) without obvious solid organ injury (SOI). METHODS A retrospective analysis was conducted for all traumatic abdominal injury patients in Qatar from 2008 to 2011. Data included demographics and clinical, radiological and operative findings. Multivariate logistic regression was performed to analyze the predictors for the need of therapeutic laparotomy. RESULTS A total of 105 patients met the inclusion criteria with a mean age of 33 ± 15. Motor Vehicle Crashes (58%) and fall (21%) were the major MOI. Using Receiver operating characteristic curve, Z-score of >9 was the cutoff point (AUC = 0.98) for high probability of the presence of TBMI requiring surgical intervention. Z-Score >9 was found to have sensitivity (96.7%), specificity (97.4%), PPV (93.5%) and NPV (98.7%). Multivariate regression analysis found Z-score (>9) to be an independent predictor for the need of exploratory laparotomy (OR7.0; 95% CI: 2.46-19.78, p = 0.001). CONCLUSION This novel tool for early diagnosis of TBMI is found to be simple and helpful in selecting stable patients with free intra-abdominal fluid without SOI for exploratory Laparotomy. However, further prospective studies are warranted.
Saudi Journal of Gastroenterology | 2011
Raed Tayyem; Christine Obondo; Abdulmajid Ali
Background/Aim: A prospective longitudinal study was conducted to describe short-term outcome and quality of life (QOL) of endoscopically placed gastric balloon (EPGB) and laparoscopic adjustable gastric band (LAGB). Materials and Methods: Forty seven consecutive patients with body mass index (BMI) of 42 to 72 kg/m2 were assigned to undergo EPGB (n=17) or LAGB (n=30) between May 2008 and May 2010. The main measured outcomes included weight loss, resolution or improvement of comorbidities, hospital stay, complications and QOL. Results: Patients were followed up for a mean of 14 months. Hospital stay was shorter for EPGB patients (one versus two days, P<0.001). Early postoperative complications recorded in EPGB were minor including nausea and vomiting. No late complications were recorded in the EPGB group. One case of band slippage was reported in the LAGB group and fixed laparoscopically. Percent excess weight loss was less in EPGB compared to LAGB (26.2% versus 44.0%, P=0.004). Resolution or improvement of comorbidities was comparable in both groups. The globally impaired preoperative quality of life showed considerable improvement in both groups. Conclusion: EPGB is a safe and effective approach in short-term management of morbid obesity. Weight loss, resolution of comorbidities and improvement in QOL were comparable between both groups.
Clinical Toxicology | 2009
Raed Tayyem; Tamim Siddiqui; Khaled Musbahi; Abdulmajid Ali
Aim. We present the case of an adult who ingested soldering fluid containing zinc chloride (ZC) in a suicide attempt. He developed a gastric stricture that was managed successfully by laparoscopic Roux-en-Y gastrojejunostomy. An extensive literature review shows that there are few reports of ZC ingestion. Furthermore, management of corrosive gastrointestinal tract injury is debatable. The evidence is summarized in this case report. Results. ZC is a strong corrosive agent, which, following ingestion, is capable of producing widespread damage locally and systematically with long-lasting morbidity and significant mortality. The mainstay of treatment is supportive. Esophago-gastro-duodenoscopy is the diagnostic procedure of choice in the absence of perforation. Strictures that cannot be dilated endoscopically may require surgery. Emergency surgery is required for patients with evidence of perforation. Early and aggressive surgical resection in patients with high-grade burns may improve mortality and morbidity. Conclusion. Because of the lack of data, it remains debatable as to the optimal management strategies following ZC ingestion. Our patient was managed conservatively throughout the acute phase. However following recognition of the gastric stricture, surgical intervention ensued and he underwent successful laparoscopic Roux-en-Y gastrojejunostomy and was subsequently discharged having made an excellent recovery.
Journal of Medical Case Reports | 2011
Ahmed Hammad; Raed Tayyem; Peter J Milewski; Shanmugavelu Gunasekaran
IntroductionIleal adenomas associated with familial adenomatous polyposis are a common finding. Many recent studies following panproctocolectomy for familial adenomatous polyposis have confirmed the presence of multiple ileal adenomas and an increase in ileal mucosal proliferation. In this study, we present a case of invasive adenocarcinoma arising in a severely dysplastic tubulovillous adenoma in the ileostomy of a patient with familial adenomatous polyposis; also, we present a literature review. To the best of our knowledge, only very few cases have been reported in the literature.Case presentationA 59-year-old Caucasian woman developed a primary adenocarcinoma in her ileostomy, complicating the stoma 31 years after its formation.ConclusionsPrimary adenocarcinoma following panproctocolectomy for familial adenomatous polyposis is a very rare clinical entity. The risk of developing adenocarcinoma in those patients increases with time. Patient education and medical examination of the stoma are of paramount importance and should be implemented early with the need of designing a surveillance protocol for early detection and management of ileal adenomas, especially in longstanding stomas.
Archive | 2011
Raed Tayyem; Abdulmajid Ali; John Atkinson; Colin R. Martin
Morbid obesity carries significant risks to the lives of affected individuals, including physical, psychological, and social comorbidities. In addition, the prevalence of obesity in the world has been steadily rising, straining the already exhausted medical care systems. Nonsurgical approaches have been tried; however, bariatric surgery provides the only effective and sustainable approach to treat morbid obesity and reverse its adverse effects.
Anz Journal of Surgery | 2009
Raed Tayyem; Judith Reid; Abdulmajid Ali
1. Waterman M, Gralnek IM. Preventing complications of endoscopic hemostasis in acute upper gastrointestinal hemorrhage. Gastrointest. Endoscopy Clin. N. Am. 2007; 17: 157–67. 2. Rohrer B, Schreiner J, Lehnert P et al. Gastrointestinal intramural hematoma, a complication of endoscopic injection methods for bleeding peptic ulcers: a case series. Endoscopy 1994; 26: 617–21. 3. Chung SS, Lau JY, Sung JJ et al. Randomized comparison between adrenaline injection alone and adrenaline injection plus heater probe treatment for actively bleeding ulcers. Br. Med. J. 1997; 314: 1307–11.
Archive | 2012
Raed Tayyem; Abdulmajid Ali; John Atkinson; Colin R. Martin
Value in Health | 2011
Raed Tayyem; A. Ali; John Atkinson; Colin R. Martin