Farzan F. Bahin

Farzan F. Bahin
Western Sydney Local Health District · Gastroenterology and Herpetology

FRACP

About

63
Publications
5,635
Reads
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1,062
Citations
Introduction
Dr Farzan Bahin is a Gastroenterologist in Sydney with an interest in research, academia, teaching and providing high quality patient care. He has an interest in colorectal cancer prevention, colorectal lesion detection and resection, Barrett's oesophagus, advanced tissue resection techniques and ERCP. He is participating in a number of prospective trials and is a lecturer at University of Sydney and Western Sydney University.
Additional affiliations
January 2015 - present
Westmead Hospital
Position
  • Advanced Endoscopy Fellow
June 2012 - present
Western Sydney University
Position
  • Clinical Lecturer
January 2011 - present
The University of Sydney
Position
  • PhD Student

Publications

Publications (63)
Article
Objective Endoscopic mucosal resection (EMR) in the colon has been widely adopted, but there is limited data on the histopathological effects of the differing electrosurgical currents (ESCs) used. We used an in vivo porcine model to compare the tissue effects of ESCs for snare resection and adjuvant margin ablation techniques. Design Standardised...
Article
Background and Aims Multiband mucosectomy (MBM) is a widely used technique for the treatment of Barrett’s esophagus (BE). However, large multicenter studies enabling a generalizable estimation of the risk of serious adverse events, such as perforation and postprocedural bleeding, are lacking. The aim of this study was to estimate the rate of, and r...
Article
Background and aims: Accurate diagnosis of indeterminate biliary strictures is challenging but important for patient prognostication and further management. Biopsy under direct cholangioscopic vision might be superior to standard ERCP techniques such as brushing or biopsy. Our aim was to investigate whether digital single-operator cholangioscopy (...
Article
Full-text available
Background and study aims Endoscopic retrograde cholangiopancreatography (ERCP) and/or extracorporeal shock wave lithotripsy are first-line therapies for draining an obstructed pancreatic duct (PD) in painful chronic calcifying pancreatitis (CCP). Pancreaticoscopy has shown promising success rates in small series. Materials and methods This study w...
Article
Background and aims: Clinically significant post-EMR bleeding (CSPEB) is the most-frequent serious adverse event after EMR of large laterally spreading colonic lesions (LSLs). There is no proven prophylactic therapy, and it remains a significant drawback of EMR. We aimed to systematically describe and evaluate the features of the post-EMR mucosal...
Article
Background & Aims Colorectal cancer (CRC) can be prevented by colonoscopy and polypectomy. Endoscopic mucosal resection (EMR) is performed to remove large laterally spreading colonic lesions that have a high risk of progression to CRC. Endoscopically invisible micro-adenomas at the margins of the EMR site might contribute to adenoma recurrence, whi...
Article
Background: Endoscopic resection of ampullary adenomas is a safe and effective alternative to surgical resection. A subgroup of patients have large laterally spreading lesions of the papilla Vateri (LSL-P), which are frequently managed surgically. Data on endoscopic resection of LSL-P are limited and long-term outcomes are unknown. The aim of this...
Article
Background and study aims Large series suggest endoscopic mucosal resection is safe and effective for the removal of large (≥ 10 mm) sessile serrated polyps (SSPs), but it exposes the patient to the risks of electrocautery, including delayed bleeding. We examined the feasibility and safety of piecemeal cold snare polypectomy (pCSP) for the resectio...
Article
Background and aims Non-lifting large laterally spreading colorectal lesions (LSLs) are challenging to resect endoscopically and often necessitate surgery. A safe, simple technique to treat non-lifting LSLs endoscopically with robust long-term outcomes has not been described. Methods In this single-center prospective observational study of consecut...
Article
Objective To compare the cost-effectiveness of endoscopic submucosal dissection (ESD) and wide-field endoscopic mucosal resection (WF-EMR) for removing large sessile and laterally spreading colorectal lesions (LSLs)> 20 mm. Design An incremental cost-effectiveness analysis using a decision tree model was performed over an 18-month time horizon. Th...
Article
Objectives: Clinically significant bleeding (CSPEB) is the most frequent adverse event following wide-field endoscopic mucosal resection (WF-EMR) of large sessile and laterally spreading colorectal lesions (LSL). There is limited knowledge regarding accurate prediction of CSPEB. We aimed to derive a score to predict the risk of CSPEB. Methods: D...
Article
Background and aims: Effective interventions to prevent residual and/or recurrent adenoma (RRA) after endoscopic mucosal resection (EMR) of large sessile and laterally spreading colorectal lesions (LSL) are yet to be determined. RRA may occur due to inconspicuous adenoma at the EMR margin. We aimed to determine the efficacy and safety of extended...
Article
BACKGROUND AND STUDY AIMS: Clinically significant bleeding (CSPEB) is the most common adverse event following endoscopic mucosal resection (EMR) of large sessile and laterally spreading colorectal lesions (LSLs), and is associated with morbidity and resource utilization. CSPEB occurs more frequently with proximal LSLs. Prophylactic clipping of the...
Article
Introduction: and aim: Large sporadic duodenal adenomas are uncommon, but harbor a malignant potential, which requires consideration of definitive treatment. Endoscopic mucosal resection is gaining acceptance as an effective and safe alternative to high-risk surgical procedures, but data on long-term outcomes is limited. Herein we describe the sho...
Article
Background and study aims: Stricture formation is the main limitation of endoscopic resection in the esophagus. The optimal electrosurgical current (ESC) for endoscopic resection in the esophagus and other gastrointestinal sites is unknown. There may be a relationship between the type of ESC used and the development of post-procedure esophageal str...
Article
BACKGROUND AND AIMS: Complete endoscopic resection (CER) of Barrett's esophagus (BE) with high-grade dysplasia (HGD) and early esophageal adenocarcinoma (EEA) is a comprehensive and precise staging tool and may produce a sustained treatment response, preventing metachronous disease. There are limited data on long-term clinical outcomes and the sust...
Article
Background and aims: Complete endoscopic resection (CER) of short-segment Barrett's esophagus with high grade dysplasia (HGD) and early esophageal adenocarcinoma (EEA) is a precise staging tool and achieves durable disease control. The major drawback is development of post-endoscopic resection esophageal stricture (PERES). No effective therapy to p...
Article
Background and study aims: Stricture formation is the main limitation of endoscopic resection in the esophagus. The optimal electrosurgical current (ESC) for endoscopic resection in the esophagus and other gastrointestinal sites is unknown. There may be a relationship between the type of ESC used and the development of post-procedure esophageal st...
Article
The role of colonoscopic polypectomy in the prevention of colorectal cancer is now well-established. Resection of adenomatous colonic polyps reduces colorectal cancer incidence(1) and mortality.(2) Despite this proven effectiveness, polyp resection techniques and outcomes remain understudied, and the potential for improvement in efficacy and safety...
Article
Barrett's esophagus (BE), a common condition, is the only known precursor to esophageal adenocarcinoma (EAC). There is uncertainty about the best way to manage BE, since most people with BE never develop EAC and most patients diagnosed with EAC have no preceding diagnosis of BE. Moreover, there have been recent advances in knowledge and practice ab...
Article
Background Barrett’s esophagus with high-grade dysplasia (HGD) or intramucosal adenocarcinoma (IMC) can be effectively treated by single-session EMR, resulting in complete Barrett’s excision (CBE). CBE provides accurate histology for staging and clinical confirmation of neoplasia eradication but is limited by a high risk of esophageal stricture for...
Article
Background & Aims: Clinically significant postendoscopic mucosal resection bleeding (CSPEB) is the most frequent significant complication of wide-field endoscopic mucosal resection (WF-EMR) of advanced mucosal neoplasia (sessile or laterally spreading colorectal lesions > 20 mm). CSPEB requires resource-intensive management and there is no strategy...
Article
Complete endoscopic resection (CER) of Barrett's esophagus (BE) with high-grade dysplasia (HGD) and early esophageal adenocarcinoma (EEA) is a comprehensive and precise staging tool and may produce a sustained treatment response, preventing metachronous disease. There are limited data on long-term clinical outcomes and the sustainability of dysplas...
Article
Background: Cold biopsy forceps polypectomy (CBP) is commenly used for the removal of diminutive polyps. However, evidence for the efficacy of CBP is lacking. The aim of this study was to evaluate the adequacy of resection of diminutive polyps and identify predictors for complete resection using CBP. Methods: This was a prospective study from a ter...
Article
Background: Wide-field EMR (WF-EMR) of large colonic lesions exposes submucosal vessels, which may result in intraprocedural bleeding (IPB). Ongoing bleeding may obscure the endoscopic field, prolonging the procedure and reducing safety and accuracy. A number of potential interventions to control bleeding exist; however, they have inherent limitat...
Article
An algorithmic approach to early recognition and treatment can minimise the potentially serious complications of gallstone disease.
Article
Full-text available
To evaluate the long-term treatment outcomes of entecavir monotherapy in treatment naive patients in an Australian tertiary care setting. A retrospective analysis of treatment naive patients receiving entecavir monotherapy through Westmead Hospital was performed. Patients were excluded if they had received previous treatment with another nucleoside...
Article
Management of bloody diarrhoea depends on the underlying cause but the cornerstone of therapy is adequate rehydration.
Article
Full-text available
This case highlights two very rare complications of metastatic colorectal carcinoma. It describes a 59 year old female with both cutaneous and endometrial metastases from colorectal carcinoma. While both of these presentations are very unusual, they highlight the need to be vigilant about the detection of metastatic complications during follow up.
Article
Full-text available
The current definition of a significant stenosis in an autologous arteriovenous fistula (aAVF), the percentage narrowing compared with the adjacent "normal" vessel, is inaccurate. We believe a significant stenosis in the aAVF is an absolute minimal luminal diameter determined by the requirements of the hemodialysis pump. To determine what absolute...
Article
Kaposiform hemangioendothelioma (KHE) and tufted angioma (TA) are rare, locally aggressive vascular tumors. Although currently classified as separate entities, they are becoming increasingly recognized as a spectrum of the same pathology. There is a well-recognized association with Kasabach-Merritt phenomenon KHE and TA are considered neoplasms of...
Article
Full-text available
Background. We sought to determine and compare the prevalence of the Metabolic Syndrome (MS) in patients with acute myocardial infarction (AMI) utilizing the new International Diabetes Federation (IDF) definition with the older National Cholesterol Education Program (NCEP) definition. We also examined the clinical utility of MS in this context. Met...
Article
The metabolic syndrome (MS) is a novel risk factor for coronary artery disease. The International Diabetes Federation (IDF) re-definition of MS lists obesity as the essential feature of MS. We determined the presence of MS by this obesity-centric definition in 107 consecutive patients with acute myocardial infarction. Our key findings were that the...

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