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Holubar SD, Nachand D, Lavryk O, Belkovsky M, Brienza R, Mohammed N, Ream J, Hull T, Steele SR, Regueiro M, Cohen BL, Qazi T, Rieder F. 3-Dimensional Pouchography: A Proof-of-Concept Study of a Novel Technique for Visualizing Ileoanal Pouch Anatomy & Morphology in Normal and Mechanical Pouch Complication Patients. J Crohns Colitis 2024:jjae058. [PMID: 38647203 DOI: 10.1093/ecco-jcc/jjae058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2024] [Indexed: 04/25/2024]
Abstract
BACKGROUND Herein, we present a proof-of-concept study of 3-dimensional (3D) pouchography using virtual and printed 3D models of ileal pouch-anal anastomosis (IPAA) in patients with normal pouches and in cases of mechanical pouch complications. MATERIALS & METHODS We performed a retrospective, descriptive case series of a convenience sample of 10 pouch patients with or without pouch dysfunction who had CT scans appropriate for segmentation were identified from our pouch registry. The steps involved in clinician-driven automated 3D reconstruction are presented. RESULTS Three patients who underwent CT imaging and were found to have no primary pouch pathology, and seven patients with known pouch pathology identifiable with 3D reconstruction including pouch strictures, megapouch, pouch volvulus, and twisted pouches underwent 3D virtual modeling; one normal and one twisted pouch were 3D printed. We discovered that 3D pouchography reliably identified staple lines (pouch body, anorectal circular and transverse, and tip of J), the relationship between staple lines, and variations in pouch morphology, and pouch pathology. CONCLUSIONS Three-dimensional reconstruction of IPAA morphology is highly feasible using readily available technology. In our practice, we have found 3D pouchography to be an extremely useful adjunct to diagnose various mechanical pouch complications and improve planning for pouch salvage strategies. Given its ease of use and helpfulness in understanding the pouch structure and function, we have started to routinely integrate 3D pouchography into our clinical pouch referral practice. Further study is needed to formally assess to value of this technique to aid in the diagnosis of pouch pathology.
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Affiliation(s)
- Stefan D Holubar
- Department of Colon & Rectal Surgery, Digestive Diseases Institute, Cleveland Clinic, Cleveland, OH
| | - Douglas Nachand
- Department of Abdominal Imaging, Imaging Institute, Cleveland Clinic, Cleveland, OH
| | - Olga Lavryk
- Department of Colon & Rectal Surgery, Digestive Diseases Institute, Cleveland Clinic, Cleveland, OH
| | - Mikhael Belkovsky
- Department of Colon & Rectal Surgery, Digestive Diseases Institute, Cleveland Clinic, Cleveland, OH
| | - Rita Brienza
- Department of Colon & Rectal Surgery, Digestive Diseases Institute, Cleveland Clinic, Cleveland, OH
| | - Nour Mohammed
- Department of Biomedical Engineering, Learner Research Institute, Cleveland Clinic, Cleveland, OH
| | - Justin Ream
- Department of Abdominal Imaging, Imaging Institute, Cleveland Clinic, Cleveland, OH
| | - Tracy Hull
- Department of Colon & Rectal Surgery, Digestive Diseases Institute, Cleveland Clinic, Cleveland, OH
| | - Scott R Steele
- Department of Colon & Rectal Surgery, Digestive Diseases Institute, Cleveland Clinic, Cleveland, OH
| | - Miguel Regueiro
- Department of Gastroenterology, Hepatology & Nutrition, Digestive Diseases Institute, Cleveland Clinic, Cleveland, OH
| | - Benjamin L Cohen
- Department of Gastroenterology, Hepatology & Nutrition, Digestive Diseases Institute, Cleveland Clinic, Cleveland, OH
| | - Taha Qazi
- Department of Gastroenterology, Hepatology & Nutrition, Digestive Diseases Institute, Cleveland Clinic, Cleveland, OH
| | - Florian Rieder
- Department of Gastroenterology, Hepatology & Nutrition, Digestive Diseases Institute, Cleveland Clinic, Cleveland, OH
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Abstract
Restorative proctocolectomy with ileal pouch-anal anastomosis has become the surgical treatment of choice for patients with refractory ulcerative colitis, colitis-associated dysplasia or familial adenomatous polyposis. There are various pouch disorders and associated complications. Floppy pouch complex is defined as the presence of pouch prolapse, afferent limb syndrome, enterocele, redundant loop and folding pouch on pouchoscopy, gastrografin pouchogram or defecography. Common clinical presentation includes dyschezia, bloating, abdominal pain, straining or the sense of incomplete evacuation. Each disorder has its own unique endoscopic, radiographic and manometry findings. A range of therapeutic options are available for the management of the various causes of a pouch.
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Affiliation(s)
- Freeha Khan
- Gastroenterology and Hepatology, Center for Inflammatory Bowel Disease, Cleveland Clinic, Cleveland, OH, USA
| | - Tracy L Hull
- Gastroenterology and Hepatology, Center for Inflammatory Bowel Disease, Cleveland Clinic, Cleveland, OH, USA
| | - Bo Shen
- Gastroenterology and Hepatology, Center for Inflammatory Bowel Disease, Cleveland Clinic, Cleveland, OH, USA
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Kwong WT, Fehmi SM, Lowy AM, Savides TJ. Enteral stenting for gastric outlet obstruction and afferent limb syndrome following pancreaticoduodenectomy. Ann Gastroenterol 2014; 27:413-417. [PMID: 25332208 PMCID: PMC4188946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Accepted: 05/13/2014] [Indexed: 10/24/2022] Open
Abstract
BACKGROUND Obstruction of the afferent or efferent limbs of a gastrojejunal anastomosis is a potential complication after pancreaticoduodenectomy (PD) resulting in either gastric outlet obstruction or afferent limb syndrome. The use of self-expanding metal stents for the management of anastomotic strictures after resection of pancreatic cancer has not been well studied. We present four such cases and review published data regarding this population. METHODS Retrospective chart review and literature search. Outcomes were summarized with descriptive statistics. RESULTS At our institution, 4 patients underwent metal stent placement for gastrojejunal obstruction after PD for pancreatic cancer. Enteral stents were placed in two patients across the afferent limb, in one patient across the efferent limb, and in another patient across both limbs. Similar cases in the literature revealed that the anastomotic stricture was malignant in 26 of 27 cases. Clinical improvement occurred in 88%. Afferent limb syndrome was successfully treated in 5 of 6 cases. Median survival was 3.5 months after stent placement. CONCLUSIONS Effective palliation of both gastric outlet obstruction and afferent limb syndrome after PD can be provided with enteral stenting. Gastrojejunal strictures after PD for pancreatic cancer are usually malignant with median survival of 3.5 months after stent placement.
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Affiliation(s)
- Wilson T. Kwong
- Division of Gastroenterology, (Wilson T. Kwong, Syed M. Fehmi, Thomas J. Savides), University of California San Diego Health Sciences, San Diego, CA, USA
| | - Syed M. Fehmi
- Division of Gastroenterology, (Wilson T. Kwong, Syed M. Fehmi, Thomas J. Savides), University of California San Diego Health Sciences, San Diego, CA, USA
| | - Andrew M. Lowy
- Division of Surgical Oncology (Andrew M. Lowy), University of California San Diego Health Sciences, San Diego, CA, USA
| | - Thomas J. Savides
- Division of Gastroenterology, (Wilson T. Kwong, Syed M. Fehmi, Thomas J. Savides), University of California San Diego Health Sciences, San Diego, CA, USA
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