Publications by authors named "Allison J Pang"

Background And Purpose: Emergency colectomies are associated with a higher risk of complications compared to elective ones. A critical assessment of complications occurring beyond post-operative day 30 (POD30) is lacking. This study aimed to assess the readmission rate and factors associated with readmission 6-months following emergency colectomy.

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Purpose: Recent studies have suggested that extended mesenteric excision (ME) may reduce surgical reintervention in Crohn's Disease (CD), but there remains clinical concerns regarding potential peri-operative morbidity. This retrospective study compares 30-day perioperative morbidity between limited and extended ME in segmental colectomies for CD.

Methods: Using the American College of Surgeons National Surgical Quality Improvement (ACS-NSQIP) colectomy-specific database, all patients with CD undergoing segmental colectomy for non-malignant indications between 2014-2019 were included.

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Purpose: The COVID-19 pandemic resulted in a partial to total shutdown of endoscopy in many healthcare centers. This study aims to quantify the impact of the reduction in colonoscopies on colorectal cancer (CRC) detection and screening.

Methods: After institutional ethics board approval, the endoscopy database at an academic tertiary-care center in Montreal, Canada, was searched for all colonoscopies performed from during the first wave locally (March-June 2020), and during the ramp up period where endoscopy service resumed (July to August 2020).

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Introduction: Fewer than 10% of colon cancers are found at the splenic flexure. A standard surgical approach to these cancers has not been defined. The goal of this study was to compare lymph node harvest and post-operative morbidity between segmental resection and formal left hemicolectomy for splenic flexure colon cancers.

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Background: Colorectal cancer is increasing in young adults. Our understanding of the adenoma-carcinoma sequence in young patients aged <50 years is lacking. The yield obtained by lowering the age of screening colonoscopy remains unclear.

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SGLT2 inhibitors are a new class of oral antihyperglycaemic agents that have garnered much attention for their attractive efficacy profile in glycaemic control along with the added benefit of weight loss. There has been increasing concern for the risk of euglycaemic (serum glucose 4-8 mmol/L) ketoacidosis with these agents. In the setting of a postoperative patient, the use of these drugs may exacerbate the normal physiological stresses of the body and increase the risk of developing euglycaemic ketoacidosis (euKDA).

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AE1 [anion exchanger 1, also known as SLC4A1 (solute carrier family 4, anion exchanger, member 1) and band 3 (erythrocyte membrane protein band 3)] is a major membrane glycoprotein expressed in human erythrocytes where it mediates the exchange of chloride and bicarbonate across the plasma membrane. Glycophorin A (GPA) is a sialoglycoprotein that associates with AE1 in erythrocytes forming the Wrb (Wright b) blood group antigen. These two integral proteins may also form a complex during biosynthesis, with GPA facilitating the cell surface expression of AE1.

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Kidney anion exchanger 1 (kAE1) is a membrane glycoprotein expressed in alpha-intercalated cells in the collecting ducts of the kidney where it mediates electroneutral chloride/bicarbonate exchange. Human kAE1 is a truncated form of erythroid AE1 missing the first 65 residues of the N-terminal cytosolic domain, which includes a disordered acidic region (residues 1-54) and the first beta-strand (residues 55-65) of the folded region. Unlike erythroid AE1, kAE1 does not bind deoxyhemoglobin, glycolytic enzymes, or cytoskeletal components.

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