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Zhou XB, Xu SW, Ye LP, Mao XL, Chen YH, Wu JF, Cai Y, Wang Y, Wang L, Li SW. Progress of esophageal stricture prevention after endoscopic submucosal dissection by regenerative medicine and tissue engineering. Regen Ther 2021; 17:51-60. [PMID: 33997185 PMCID: PMC8100352 DOI: 10.1016/j.reth.2021.01.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 11/17/2020] [Accepted: 01/11/2021] [Indexed: 01/10/2023] Open
Abstract
Endoscopic submucosal dissection (ESD) has been widely accepted as an effective treatment for early esophageal cancer. However, post-ESD esophageal stricture remains a thorny issue. We herein review many strategies for preventing post-ESD esophageal stricture, as well as discuss their strengths and weaknesses. These strategies include pharmacological prophylaxis, esophageal stent and tissue engineering and regenerative medicine treatment. In this review, we summarize these studies and discuss the underlying progress and future directions of tissue engineering and regenerative medicine treatment.
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Key Words
- 5-FU, 5-Fluorouracil
- ADSC, Autologous adipose-derived stem cells
- ASGS, autologous skin graft surgery
- ChST15, carbohydrate sulfotransferase 15
- EBD, endoscopic balloon dilation
- ECM, extracellular matrix
- ESD, endoscopic submucosal dissection
- Endoscopic submucosal dissection
- Esophageal stricture
- FCMS, fully covered metal stent
- OMECs, oral mucosal epithelial cell sheets
- PGAs, polyglycolic acid sheet
- PIPAAm, poly(N-isopropylacrylamide)
- Regenerative medicine
- SESCNs, superficial esophageal squamous cell neoplasms
- SIS, small intestinal submucosa
- SeMS, self-expandable metal stents
- TA, triamcinolone acetonide
- TS-PGA, triamcinolone-soaked polyglycolic acid sheet
- Tissue engineering
- Tβ4, Thymosin β4
- ccESTD, complete circular endoscopic submucosal tunnel dissection
- siRNA, small interfering RNA
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Affiliation(s)
- Xian-Bin Zhou
- Department of Gastroenterology, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, LinHai, Zhejiang, China
| | - Shi-Wen Xu
- Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Li-Ping Ye
- Department of Gastroenterology, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, LinHai, Zhejiang, China
| | - Xin-Li Mao
- Department of Gastroenterology, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, LinHai, Zhejiang, China
| | - Ya-Hong Chen
- Health Management Center, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, Linhai, Zhejiang, China
| | - Jian-Fen Wu
- Department of Gastroenterology, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, LinHai, Zhejiang, China
| | - Yue Cai
- Department of Gastroenterology, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, LinHai, Zhejiang, China
| | - Yi Wang
- Department of Gastroenterology, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, LinHai, Zhejiang, China
| | - Li Wang
- College of Basic Medicine, Inner Mongolia Medical University, Hohhot, Inner Mongolia, China
| | - Shao-Wei Li
- Department of Gastroenterology, Taizhou Hospital of Zhejiang Province Affiliated to Wenzhou Medical University, LinHai, Zhejiang, China
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Lim HT, Park SH, Choi JH, Bae JS, Kong SH, Park DJ, Lee HJ, Kim SH, Yang HK. Radiologic intervention due to delayed gastric emptying after pylorus preserving gastrectomy for gastric cancer does not affect pyloric function. KOREAN JOURNAL OF CLINICAL ONCOLOGY 2020; 16:89-95. [PMID: 36945716 PMCID: PMC9942724 DOI: 10.14216/kjco.20014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 11/08/2020] [Accepted: 11/18/2020] [Indexed: 11/07/2022]
Abstract
Purpose The purpose of this study is to evaluate whether radiologic intervention in the pylorus decreases its function for delayed gastric emptying (DGE) patients after pylorus preserving gastrectomy (PPG) for gastric cancers and to determine the optimal interventional algorithm. Methods PPG patients who underwent intervention for DGE from January 2013 to December 2017 and a control group using propensity score matching were identified. Pyloric function was compared by subjective symptoms, postoperative upper gastrointestinal series at 3 months (short-term function), and esophagogastroduodenoscopy findings at 12 months (long-term function). Serum albumin levels and body weight change, 6 months and 12 months postoperatively, were compared to evaluate nutritional status. Interventional success rate, mean hospital stay, and recurrence of DGE were analyzed to determine the optimal intervention plan. Results Fifty-one out of 677 patients (7.53%) received intervention. There was no difference in pyloric function and nutritional status between the intervention and control groups. The interventional success rate for first-time balloon dilatation was 41.7% (20/48). If a second intervention was required and balloon dilatation was done, the success rate was 45.5% (5/11). However, if stent insertion was done, the success rate was 100% (17/17). Subsequent stent insertion after balloon dilatation resulted in a shorter mean hospital stay. Intervention including stent insertion had a lower recurrence of DGE than balloon only intervention (1.96% vs. 5.88%, P=0.041). Conclusion Radiologic intervention did not decrease long-term pyloric function. For treating DGE, if at first balloon dilatation fails, retrievable stent insertion can be considered as a second choice.
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Affiliation(s)
- Hyun Tae Lim
- Departments of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Shin-Hoo Park
- Departments of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Jong-Ho Choi
- Departments of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Jae Seok Bae
- Radiology, Seoul National University College of Medicine, Seoul, Korea
| | - Seong-Ho Kong
- Departments of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Do Joong Park
- Departments of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Hyuk-Joon Lee
- Departments of Surgery, Seoul National University College of Medicine, Seoul, Korea
| | - Se Hyung Kim
- Radiology, Seoul National University College of Medicine, Seoul, Korea
| | - Han-Kwang Yang
- Departments of Surgery, Seoul National University College of Medicine, Seoul, Korea
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Uncovered self-expandable metal stents for the treatment of refractory benign colorectal anastomotic stricture. Sci Rep 2020; 10:19841. [PMID: 33199742 PMCID: PMC7669833 DOI: 10.1038/s41598-020-76779-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 10/28/2020] [Indexed: 11/08/2022] Open
Abstract
Self-expandable metal stent (SEMS) placement has been suggested as a therapeutic modality for treating benign colorectal strictures. Covered stents are generally used, given the concerns regarding the efficacy and safety of uncovered stents. Hence, few studies have evaluated the efficacy and safety of uncovered SEMSs (UCSEMSs) in patients with refractory benign colorectal anastomotic strictures. In this study, 12 patients with postoperative benign symptomatic anastomotic strictures refractory to pneumatic dilation (range, 2–9) and transient indwelling-covered SEMSs were treated using UCSEMS. All enrolled patients were men (mean age, 61 years). Stent placement was successful in all 12 patients, and early clinical success was achieved in 11 (92%) patients. Four patients (25%) showed successful clinical outcomes without further intervention, but eight patients (75%) were clinically unsuccessful, and showed stricture recurrence or functional obstructive symptoms. Three patients underwent surgery, and the remaining five patients required repeat stent procedures. Despite the high reobstruction rate, the median follow-up period after UCSEMS placement was 16.7 months, demonstrating that UCSEMS may be able to achieve medium-term symptom relief without any complications. Therefore, UCSEMS may be an alternative option in exceptional circumstances in carefully selected patients, where invasive surgical treatments, such as stoma diversion, are not an option, thereby improving patients’ quality of life.
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Park S, Shin JH, Han K. Interventional radiology for post-gastrectomy complications. INTERNATIONAL JOURNAL OF GASTROINTESTINAL INTERVENTION 2019. [DOI: 10.18528/ijgii180020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
- Suyoung Park
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Ji Hoon Shin
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Kichang Han
- Division of Interventional Radiology, Department of Radiology, Severance Hospital, Yonsei University, Seoul, Korea
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Bakheet N, Tsauo J, Song HY, Kim KY, Park JH, Wang Z, Kim MT. Fluoroscopic self-expandable metallic stent placement for treating post-operative nonanastomotic strictures in the proximal small bowel: a 15-year single institution experience. Br J Radiol 2019; 92:20180957. [PMID: 31017467 DOI: 10.1259/bjr.20180957] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
OBJECTIVE To evaluate the efficacy and safety of fluoroscopic self-expandable metallic stent (SEMS) placement for treating postoperative nonanastomotic strictures in the proximal small bowel. METHODS Data from 8 consecutive patients (mean age, 63.8 ± 6.9 years; 7 males and 1 female) who underwent 17 fluoroscopic SEMS placement procedures in total for treating postoperative nonanastomotic strictures in the proximal jejunum were retrospectively reviewed. The most recent surgery for all the patients was total gastrectomy with esophagojejunostomy. Strictures were located in the proximal jejunum in all patients. The mean length of the strictures was 5.8 ± 2.0 cm. Five patients with comorbidities were poor surgical candidates. Four patients underwent fluoroscopic balloon dilation, three of whom showed no resolution of obstructive symptoms and one demonstrated recurrence of symptoms. RESULTS Technical and clinical success was achieved in 100% (17/17) SEMS procedures. Complete resolution of obstructive symptoms and improvement in oral intake status occurred within 3 days after all procedures, rendering a clinical success rate of 100% (17/17). No complication occurred during or after the procedures. The median follow-up duration was 167 [interquartile range (IQR), 48-576] days. Stent malfunction occurred after 58.8% (10/17) of the procedures, including six occurrences of stent migration and four of benign tissue hyperplasia. Surgical removal of the migrated stents was performed in two patients. Recurrence of symptoms occurred after 64.7% (11/17) of the procedures. The median stent dwell and recurrence-free times were 32 (IQR, 20-193) and 68 (IQR, 38-513) days, respectively. CONCLUSION Fluoroscopic SEMS placement may be effective and safe for treating postoperative nonanastomotic strictures, but stent malfunction and recurrence are major drawbacks. ADVANCES IN KNOWLEDGE SEMS placement is effective and relatively safe in patients with postoperative nonanastomotic strictures in the proximal small bowel. Patients section and counseling is highly encouraged.
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Affiliation(s)
- Nader Bakheet
- 1 Departments of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine , Seoul , Korea.,2 Gastrointestinal Endoscopy and Liver unit, Kasr Al-Ainy Faculty of Medicine, Cairo University , Cairo , Egypt
| | - Jiaywei Tsauo
- 3 Department of Interventional Therapy, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing , China
| | - Ho-Young Song
- 1 Departments of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine , Seoul , Korea
| | - Kun Yung Kim
- 1 Departments of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine , Seoul , Korea.,4 Department of Radiology and Research Institute of Clinical Medicine, Chonbuk National University-Biomedical Research Institute of Chonbuk National University Hospital , Jeonju , South Korea
| | - Jung-Hoon Park
- 1 Departments of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine , Seoul , Korea
| | - Zhe Wang
- 1 Departments of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine , Seoul , Korea
| | - Min Tae Kim
- 5 Department of Radiologic Technology, Cheju Halla University , Jeju , Republic of Korea
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Ishihara R. Prevention of esophageal stricture after endoscopic resection. Dig Endosc 2019; 31:134-145. [PMID: 30427076 DOI: 10.1111/den.13296] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 11/08/2018] [Indexed: 01/10/2023]
Abstract
Stricture formation after esophageal endoscopic resection has a negative impact on patients' quality of life because it causes dysphagia and requires multiple endoscopic dilations. Various methods by which to prevent stricture have recently been developed and reported. Among these methods, local steroid injection is the most commonly used and is currently considered the standard method for noncircumferential resection. However, local steroid injection has a limited effect on circumferential resection. Thus, oral steroid administration is used for such cases because it may have a stronger effect than local injection. Steroid treatment, both by local injection and oral administration, is effective and low-cost; however, it may cause fragility of the esophageal wall, resulting in adverse events such as perforation during balloon dilatation. Many innovative approaches have been developed, such as tissue-shielding methods with polyglycolic acid, tissue engineering approaches with autologous oral mucosal epithelial cell sheet transplantation, and stent insertion. These methods may be promising, but they are limited by a scarcity of data. Further investigations are needed to confirm the efficacy of these methods.
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Affiliation(s)
- Ryu Ishihara
- Department of Gastrointestinal Oncology, Osaka International Cancer Institute, Osaka, Japan
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Tsauo J, Kim KY, Song HY, Park JH, Jun EJ, Kim MT, Yoon SH. Fluoroscopic Balloon Dilation for Treating Postoperative Nonanastomotic Strictures in the Proximal Small Bowel: A 15-Year Single-Institution Experience. J Vasc Interv Radiol 2017; 28:1141-1146. [PMID: 28283402 DOI: 10.1016/j.jvir.2017.01.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 01/03/2017] [Accepted: 01/05/2017] [Indexed: 02/07/2023] Open
Abstract
PURPOSE To evaluate safety and effectiveness of fluoroscopic balloon dilation (FBD) for treating postoperative nonanastomotic strictures in proximal small bowel. MATERIALS AND METHODS Data of 44 patients (26 men and 18 women; mean age, 53.7 y ± 13.0) treated with FBD for postoperative nonanastomotic strictures in the proximal small bowel between January 2000 and February 2016 were retrospectively reviewed. Site of stricture was located in the first portion of duodenum in 8 (18.2%) patients, second portion of duodenum in 8 (18.2%) patients, third portion of duodenum in 1 (2.3%) patient, fourth portion of duodenum in 1 (2.3%) patient, and proximal jejunum in 26 (59.1%) patients. Mean distance between the most anal-side lesion and the oral cavity was 63.9 cm ± 15.0. RESULTS Technical success was achieved in 39 (88.6%) patients. Mean stricture length was 3.0 cm ± 1.8. Technical failure because of inability to negotiate the guide wire through the stricture occurred in 5 (13.6%) patients. Complete resolution of obstructive symptoms and resumption of oral intake of soft or solid food within 3 days occurred in 34 patients after 1 (n = 32) or 2 (n = 2) FBD sessions, rendering a clinical success rate of 87.2%. There were no major complications directly related to FBD. Median follow-up period was 1,406 days (interquartile range, 594-2,236 d). Nine (26.5%) patients had recurrence within a median 47 days (interquartile range, 20-212 d). CONCLUSIONS FBD may be safe and effective for treating postoperative nonanastomotic strictures in the proximal small bowel.
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Affiliation(s)
- Jiaywei Tsauo
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul 138-736, Republic of Korea
| | - Kun Yung Kim
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul 138-736, Republic of Korea
| | - Ho-Young Song
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul 138-736, Republic of Korea.
| | - Jung-Hoon Park
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul 138-736, Republic of Korea
| | - Eun Jung Jun
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul 138-736, Republic of Korea
| | - Min Tae Kim
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul 138-736, Republic of Korea
| | - Sung-Hwan Yoon
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul 138-736, Republic of Korea
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Kim JE, Kim HC, Lee M, Hur S, Kim M, Lee SH, Cho SB, Kim CS, Han JK. Efficacy of Retrievable Metallic Stent with Fixation String for Benign Stricture after Upper Gastrointestinal Surgery. Korean J Radiol 2016; 17:893-902. [PMID: 27833405 PMCID: PMC5102917 DOI: 10.3348/kjr.2016.17.6.893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Accepted: 07/31/2016] [Indexed: 11/21/2022] Open
Abstract
Objective To determine the efficacy of retrievable metallic stent with fixation string for benign anastomotic stricture after upper gastrointestinal (UGI) surgery. Materials and Methods From June 2009 to May 2015, a total of 56 retrievable metallic stents with fixation string were placed under fluoroscopy guidance in 42 patients who were diagnosed with benign anastomotic stricture after UGI surgery. Clinical success was defined as achieving normal regular diet (NRD). Results The clinical success rate after the first stent placement was 57.1% (24/42). After repeated stent placement and/or balloon dilation, the clinical success rate was increased to 83.3% (35/42). Six (14.3%) patients required surgical revision to achieve NRD. One (2.4%) patient failed to achieve NRD. Stent migration occurred in 60.7% (34/56) of patients. Successful rate of removing the stent using fixation string and angiocatheter was 94.6% (53/56). Distal migration occurred in 12 stents. Of the 12 stents, 10 (83.3%) were successfully removed whereas 2 could not be removed. No complication occurred regarding distal migration. Conclusion Using retrievable metallic stent with a fixation string is a feasible option for managing early benign anastomotic stricture after UGI surgery. It can reduce complications caused by distal migration of the stent.
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Affiliation(s)
- Jeong-Eun Kim
- Department of Radiology, Seoul National University Hospital, Seoul 03080, Korea
| | - Hyo-Cheol Kim
- Department of Radiology, Seoul National University Hospital, Seoul 03080, Korea
| | - Myungsu Lee
- Department of Radiology, Seoul National University Hospital, Seoul 03080, Korea
| | - Saebeom Hur
- Department of Radiology, Seoul National University Hospital, Seoul 03080, Korea
| | - Minuk Kim
- Department of Radiology, Seoul National University Hospital, Seoul 03080, Korea
| | - Sang Hwan Lee
- Department of Radiology, Seoul National University Hospital, Seoul 03080, Korea
| | - Soo Buem Cho
- Department of Radiology, Seoul National University Hospital, Seoul 03080, Korea
| | - Chan Sun Kim
- Department of Radiology, Seoul National University Hospital, Seoul 03080, Korea
| | - Joon Koo Han
- Department of Radiology, Seoul National University Hospital, Seoul 03080, Korea
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Khokhar HA, Azeem B, Bughio M, Bass GA, Elfadul A, Salih M, Fahmy W, Walsh TN. Trans-Balloon Visualisation During Dilatation (TBVD) of Oesophageal Strictures: a Novel Innovation. J Gastrointest Surg 2016; 20:674-9. [PMID: 26585885 DOI: 10.1007/s11605-015-3024-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Accepted: 11/09/2015] [Indexed: 01/31/2023]
Abstract
BACKGROUND Hydrostatic balloon dilatation of upper gastrointestinal strictures is associated with a risk of perforation that varies with the underlying pathology and with the technique employed. We present a technique of trans-balloon visualisation of the stricture during dilatation (TBVD) that allows direct 'real-time' observation of the effect of dilatation on the stricture, facilitating early recognition of mucosal abruption, thereby reducing the perforation rate. PATIENTS AND METHODS We retrospectively analysed 100 consecutive patients, undergoing balloon dilatation of oesophageal strictures between 1st of January 2011 and 1st of July 2014. RESULTS One hundred patients underwent 186 dilatations, with 34 having multiple procedures (mean 1.86). All had oesophageal strictures (mean diameter 8.49 mm, range 5-11 mm) and most underwent dilatation up to a maximum of 17 mm (mean 14.7 mm). Fifty-six percent were male and the average age was 62.5 years (17-89 years). Only one patient (0.5% of all procedures) had a full-thickness perforation requiring intervention while just one further patient had a deep mucosal tear that did not require intervention. CONCLUSIONS TBVD is a safe technique with a short learning curve and is one of the important factors that allow potentially difficult dilatations to be performed safely with an exceptionally low rate of adverse events of less than 1%.
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Affiliation(s)
- Haseeb A Khokhar
- Upper GI Surgical Department, Connolly Hospital Blanchardstown, Dublin 15, Ireland.
- , 9 The Avenue, Highfield Park, Ballincollig, County Cork, Ireland.
| | - Beenish Azeem
- Upper GI Surgical Department, Connolly Hospital Blanchardstown, Dublin 15, Ireland
| | - Mumtaz Bughio
- Upper GI Surgical Department, Connolly Hospital Blanchardstown, Dublin 15, Ireland
| | - Gary A Bass
- Upper GI Surgical Department, Connolly Hospital Blanchardstown, Dublin 15, Ireland
| | - Amr Elfadul
- Upper GI Surgical Department, Connolly Hospital Blanchardstown, Dublin 15, Ireland
| | - Monim Salih
- Upper GI Surgical Department, Connolly Hospital Blanchardstown, Dublin 15, Ireland
| | - Waleed Fahmy
- Upper GI Surgical Department, Connolly Hospital Blanchardstown, Dublin 15, Ireland
| | - Thomas N Walsh
- Upper GI Surgical Department, Connolly Hospital Blanchardstown, Dublin 15, Ireland
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Chung KH, Lee SH, Park JM, Lee JM, Shin CM, Ahn SH, Park DJ, Kim HH, Ryu JK, Kim YT. Partially covered self-expandable metallic stent for postoperative benign strictures associated with laparoscopy-assisted gastrectomy. Gastric Cancer 2016; 19:280-6. [PMID: 25503478 DOI: 10.1007/s10120-014-0450-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Accepted: 11/24/2014] [Indexed: 02/07/2023]
Abstract
BACKGROUND A partially covered self-expandable metallic stent (PCSEMS) is of proven benefit in palliation of unresectable or inoperable malignant gastric outlet obstruction. However, its use in patients with benign anastomotic stricture after laparoscopy-assisted gastrectomy (LAG) is not well established. METHODS Patients who between May 2007 and June 2012 underwent PCSEMS placement for management of benign gastrointestinal obstruction after LAG were included in this retrospective analysis. The primary outcomes were the technical success and clinical success of the PCSEMS. The secondary outcomes were procedure-related complications and PCSEMS dysfunction. RESULTS Eleven patients (six women, five men, mean age 53.5 years, range 15-76 years) underwent successful placement of a PCSEMS for management of benign anastomotic strictures after LAG and were followed-up for a mean of 20.6 months (range 7.9-55.6 months). The mean gastric outlet obstruction scoring system (GOOSS) score was 0.36 before PCSEMS placement and 1.55 (p = 0.010) 24-48 h after PCSEMS placement. All of the patients were able to tolerate a solid diet (GOOSS score 3) after 1 week. There were no major or minor procedure-related complications. Stent dysfunction occurred in four patients (three distal migrations, one proximal migration), and stent removal was successful in all of the remaining patients after a mean of 2.0 months (1.1-3.0 months). Obstructive symptoms recurred in two patients (one after proximal migration, one after stent removal) and were treated successfully with PCSEMS reinsertion and balloon dilation. CONCLUSIONS A PCSEMS may be a feasible and effective option for management of benign anastomotic strictures after LAG which could avoid secondary surgery.
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Affiliation(s)
- Kwang Hyun Chung
- Division of Gastroenterology, Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, 101, Daehak-ro, Jongno-gu, Seoul, 110-744, Korea.
| | - Sang Hyub Lee
- Division of Gastroenterology, Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, 101, Daehak-ro, Jongno-gu, Seoul, 110-744, Korea.
| | - Jin Myung Park
- Division of Gastroenterology, Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, 101, Daehak-ro, Jongno-gu, Seoul, 110-744, Korea.
| | - Jae Min Lee
- Division of Gastroenterology, Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, 101, Daehak-ro, Jongno-gu, Seoul, 110-744, Korea.
| | - Cheol Min Shin
- Department of Internal Medicine, Seoul National University Bundang Hospital, 82, Gumi-ro 173beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-Do, 463-707, Korea.
| | - Sang Hoon Ahn
- Department of Surgery, Seoul National University Bundang Hospital, 82, Gumi-ro 173beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-Do, 463-707, Korea.
| | - Do Joong Park
- Department of Surgery, Seoul National University Bundang Hospital, 82, Gumi-ro 173beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-Do, 463-707, Korea.
| | - Hyung-Ho Kim
- Department of Surgery, Seoul National University Bundang Hospital, 82, Gumi-ro 173beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-Do, 463-707, Korea.
| | - Ji Kon Ryu
- Division of Gastroenterology, Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, 101, Daehak-ro, Jongno-gu, Seoul, 110-744, Korea.
| | - Yong-Tae Kim
- Division of Gastroenterology, Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, 101, Daehak-ro, Jongno-gu, Seoul, 110-744, Korea.
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Bae JS, Kim SH, Shin CI, Joo I, Yoon JH, Lee HJ, Yang HK, Baek JH, Kim TH, Han JK, Choi BI. Efficacy of Gastric Balloon Dilatation and/or Retrievable Stent Insertion for Pyloric Spasms after Pylorus-Preserving Gastrectomy: Retrospective Analysis. PLoS One 2015; 10:e0144470. [PMID: 26657405 PMCID: PMC4675538 DOI: 10.1371/journal.pone.0144470] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 11/18/2015] [Indexed: 01/01/2023] Open
Abstract
Purpose We retrospectively investigated the feasibility and clinical efficacy of balloon dilatation and subsequent retrievable stent insertion, when necessitated, for pyloric spasms after pylorus-preserving gastrectomy (PPG). Materials and Methods Forty-five patients experiencing pyloric spasms after PPG underwent fluoroscopic balloon dilations to alleviate obstructive symptoms due to delayed gastric emptying. Patients showing poor response to balloon dilation underwent subsequent retrievable stent insertion. Safety of the procedures was analyzed, and subjective symptoms and objective signs of pyloric spasms were analyzed and compared before and after treatment. Results Thirty-three patients (73.3%, 33/45) showed good response to balloon dilatation requiring no further treatment (balloon group). Conversely, 12 patients (26.7%, 12/45) showed poor or no response after balloon dilation requiring subsequent stent insertion (stent group). Balloon dilations and/or stent insertions were safely performed in all patients except one patient who suffered a transmural tear after balloon dilatation. In both groups, mean subjective symptom score was significantly improved and mean pyloric canal-to-height of the adjacent vertebral body ratio was significantly increased after the procedures (P <.05). Conclusion Balloon dilation is a safe and effective treatment for patients with pyloric spasms after PPG. In patients refractory to balloon dilations, retrievable stent placement can be a safe alternative tool.
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Affiliation(s)
- Jae Seok Bae
- Department of Radiology, Seoul National University Hospital, Seoul, Korea
| | - Se Hyung Kim
- Department of Radiology, Seoul National University Hospital, Seoul, Korea
- * E-mail:
| | - Cheong-il Shin
- Department of Radiology, Seoul National University Hospital, Seoul, Korea
- Institute of Radiation Medicine, Seoul National University Hospital, Seoul, Korea
| | - Ijin Joo
- Department of Radiology, Seoul National University Hospital, Seoul, Korea
| | - Jeong Hee Yoon
- Department of Radiology, Seoul National University Hospital, Seoul, Korea
| | - Hyuk-Joon Lee
- Department of Surgery, Seoul National University Hospital, Seoul, Korea
| | - Han-Kwang Yang
- Department of Surgery, Seoul National University Hospital, Seoul, Korea
| | - Jee Hyun Baek
- Department of Radiology, New Korea Hospital, Gimpo, Gyeonggi-do, Korea
| | - Tae Han Kim
- Department of Surgery, Seoul National University Hospital, Seoul, Korea
| | - Joon Koo Han
- Department of Radiology, Seoul National University Hospital, Seoul, Korea
- Institute of Radiation Medicine, Seoul National University Hospital, Seoul, Korea
| | - Byung Ihn Choi
- Department of Radiology, Seoul National University Hospital, Seoul, Korea
- Institute of Radiation Medicine, Seoul National University Hospital, Seoul, Korea
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Irani S, Kozarek RA. Techniques and principles of endoscopic treatment of benign gastrointestinal strictures. Curr Opin Gastroenterol 2015; 31:339-50. [PMID: 26247823 DOI: 10.1097/mog.0000000000000200] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
PURPOSE OF REVIEW The fundamental goal of treating any stenosis is luminal enlargement to ameliorate the underlying obstructive symptoms. Symptoms depend on the etiology and the site of the stricture and may include dysphagia, nausea and vomiting, abdominal pain, obstipation, or frank bowel obstruction. This article compares the various current technologies available for the treatment of gastrointestinal stenoses with regard to ease and site of application, patient tolerance, safety and efficacy data, and cost-benefit ratio. RECENT FINDINGS Recent studies indicate that gastrointestinal dilation and stenting have evolved to a point at which in many if not most situations they can be the first line therapy and potentially the final therapy needed to treat the underlying condition. SUMMARY Following techniques and principles in the management of gastrointestinal strictures would allow for the well tolerated and effective treatment of most patients with the tools currently available today.
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Affiliation(s)
- Shayan Irani
- Digestive Disease Institute, Virginia Mason Medical Center, Seattle, Washington, USA
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Uno K, Iijima K, Koike T, Shimosegawa T. Useful strategies to prevent severe stricture after endoscopic submucosal dissection for superficial esophageal neoplasm. World J Gastroenterol 2015; 21:7120-7133. [PMID: 26109798 PMCID: PMC4476873 DOI: 10.3748/wjg.v21.i23.7120] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Revised: 03/24/2015] [Accepted: 04/28/2015] [Indexed: 02/06/2023] Open
Abstract
The minimal invasiveness of endoscopic submucosal dissection (ESD) prompted us to apply this technique to large-size early esophageal squamous cell carcinoma and Barrett’s adenocarcinoma, despite the limitations in the study population and surveillance duration. A post-ESD ulceration of greater than three-fourths of esophageal circumference was advocated as an important risk factor for refractory strictures that require several sessions of dilation therapy. Most of the preoperative conditions are asymptomatic, but dilatation treatment for dysphagia associated with the stricture has potential risks of severe complications and a worsening of quality of life. Possible mechanisms of dysphasia were demonstrated based on dysmotility and pathological abnormalities at the site: (1) delayed mucosal healing; (2) severe inflammation and disorganized fibrosis with abundant extracellular matrices in the submucosa; and (3) atrophy in the muscularis proper. However, reports on the administration of anti-scarring agents, preventive dilation therapies, and regenerative medicine demonstrated limited success in stricture prevention, and there were discrepancies in the study designs and protocols of these reports. The development and consequent long-term assessments of new prophylactic technologies on the promotion of wound healing and control of the inflammatory/tumor microenvironment will require collaboration among various research fields because of the limited accuracy of preoperative staging and high-risk of local recurrence.
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Prevention and treatment of esophageal stenosis after endoscopic submucosal dissection for early esophageal cancer. Gastroenterol Res Pract 2014; 2014:457101. [PMID: 25386186 DOI: 10.1155/2014/457101] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2014] [Accepted: 08/31/2014] [Indexed: 01/10/2023] Open
Abstract
Endoscopic submucosal dissection (ESD) for the treatment of esophageal mucosal lesions is associated with a risk of esophageal stenosis, especially for near-circumferential or circumferential esophageal mucosal defects. Here, we review historic and modern studies on the prevention and treatment of esophageal stenosis after ESD. These methods include prevention via pharmacological treatment, endoscopic autologous cell transplantation, endoscopic esophageal dilatation, and stent placement. This short review will focus on direct prevention and treatment, which may help guide the way forward.
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Preventing stricture formation by covered esophageal stent placement after endoscopic submucosal dissection for early esophageal cancer. Dig Dis Sci 2014; 59:658-63. [PMID: 24323178 DOI: 10.1007/s10620-013-2958-5] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Accepted: 11/13/2013] [Indexed: 02/08/2023]
Abstract
OBJECTIVE We aimed to evaluate the efficacy and safety of fully covered esophageal stent placement for preventing esophageal strictures after endoscopic submucosal dissection (ESD). METHODS Twenty-two patients with a mucosal defects that exceeded 75 % of the circumference of the esophagus after ESD treatment for superficial esophageal squamous cell carcinomas were grouped according to the type of mucosal defect and randomized to undergo fully covered esophageal stent placement post-ESD (group A, n = 11) or no stent placement (group B, n = 11). In group A, the esophageal stents were removed 8 weeks post-ESD. Endoscopy was performed when patients reported dysphagia symptoms and at 12 weeks post-ESD in patients without symptoms. Savary-Gilliard dilators were used for bougie dilation in patients experiencing esophageal stricture in both groups, and we compared the rates of post-ESD strictures and the need for bougie dilation procedures. RESULTS The proportion of patients who developed a stricture was significantly lower in group A (18.2 %, n = 2) than in group B (72.7 %, n = 8) (P < 0.05). Moreover, the number of bougie dilation procedures was significantly lower in group A (mean 0.45, range 0-3) than in group B (mean 3.9, range 0-17) (P < 0.05). The two patients in group A who experienced stricture also had stent displacement. CONCLUSIONS Esophageal stents are a safe and effective method of preventing esophageal strictures in cases where >75 % of the circumference of the esophagus has mucosal defects after ESD treatment for early esophageal cancer.
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Fluoroscopically guided balloon dilation or temporary stent placement for patients with gastric conduit strictures after esophagectomy with esophagogastrostomy. AJR Am J Roentgenol 2013; 201:202-7. [PMID: 23789676 DOI: 10.2214/ajr.12.9420] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE The purpose of this study was to evaluate the clinical features of patients with gastric conduit strictures after esophagectomy and to report our initial experience in the management of these strictures with fluoroscopically guided balloon dilation, temporary stent placement, or both. MATERIALS AND METHODS From January 1996 to January 2012, 12 patients with gastric conduit stricture after esophagectomy underwent fluoroscopic balloon dilation, temporary stent placement, or both. Stent placement was indicated in patients who had gastro-respiratory fistulas or recurrent symptoms within 2 weeks of balloon dilation. Technical and clinical success, complications, and length of strictures were retrospectively evaluated. RESULTS The mean length of strictures in all patients was 49 mm (range, 21-76 mm). The strictures were accompanied by gastrorespiratory fistulas in four patients. Seven patients with gastric conduit strictures without fistulas underwent 23 balloon dilations. Five patients underwent stent placement owing to gastrorespiratory fistula formation (n = 4) and frequent recurrent symptoms after balloon dilation (n = 1). During a mean follow-up period of 8 months (range, 2-28 months), clinical success was achieved in 11 patients (91.6%) after a single balloon dilation (n = 1), multiple balloon dilations (n = 5), or stent placement (n = 5). Complications occurred in 3 of 10 patients (30%) after balloon dilation and in one of five patients (20%) after stent placement. CONCLUSION Gastric conduit strictures are characterized by their substantial length and tend to be accompanied by gastrorespiratory fistulas. Despite relatively high complication and recurrence rates, this study may offer a viable treatment of gastric conduit strictures by using fluoroscopically guided balloon dilation and stent placement.
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Interventional management of benign strictures of the gastrointestinal tract from the stomach to the colon. GASTROINTESTINAL INTERVENTION 2013. [DOI: 10.1016/j.gii.2013.04.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Fluoroscopically guided balloon dilation of benign esophageal strictures: incidence of esophageal rupture and its management in 589 patients. AJR Am J Roentgenol 2012; 197:1481-6. [PMID: 22109306 DOI: 10.2214/ajr.11.6591] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
OBJECTIVE The purpose of this article is to investigate the incidence and management of esophageal rupture caused by balloon dilation in patients with benign esophageal strictures. MATERIALS AND METHODS Fluoroscopically guided esophageal balloon dilation was performed on 589 patients with benign esophageal strictures during an 18-year period. The strictures had a range of causes: postoperative anastomotic stricture, corrosive stricture, postradiation stricture, esophageal achalasia, esophageal reflux, congenital stricture, esophageal web, esophageal ulcer, medication fibrosis, chronic inflammation, and posttraumatic stricture (in descending order of frequency). Esophageal rupture was assigned to one of three categories: type 1 was intramural, type 2 was transmural with a contained leak, and type 3 was transmural with an uncontained mediastinal leakage. RESULTS A total of 1421 procedures were performed in 589 patients, with each patient undergoing 1-29 procedures. The technical success rate was 99.8%, and the clinical success rate was 91.7%. Patients with corrosive stricture underwent the highest number of procedures (mean, 4.38 procedures). The incidence of esophageal rupture was 14.7%. All esophageal ruptures were detected immediately after the procedure. Most ruptures (98.6%) were types 1 and 2 and were successfully managed conservatively. Only 1.4% of the ruptures were type 3 and required active management. One of the type 3 ruptures was successfully treated with a retrievable covered stent. Two patients with type 3 ruptures (0.96% of ruptures) underwent surgery and were successfully treated. The rupture rate was not statistically related to the diameter of balloon used. CONCLUSION The incidence of esophageal rupture after fluoroscopically guided esophageal balloon dilation was 14.7%. Almost all ruptures were type 1 or 2 and were successfully managed conservatively. Only 1.4% of the ruptures were type 3 and required active management. There was no procedure-related mortality in any patient. Therefore, in spite of the high incidence of ruptures, fluoroscopically guided balloon dilation is a safe procedure, particularly if a rupture is identified early and managed appropriately.
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Evaluation of the Incidence of Esophageal Complications Associated With Balloon Dilation and Their Management in Patients With Malignant Esophageal Strictures. AJR Am J Roentgenol 2012; 198:213-8. [DOI: 10.2214/ajr.11.6468] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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The outcome of fluoroscopically guided balloon dilation of pyloric stricture in Crohn disease. J Vasc Interv Radiol 2011; 22:1153-8. [PMID: 21570874 DOI: 10.1016/j.jvir.2011.03.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2010] [Revised: 03/04/2011] [Accepted: 03/10/2011] [Indexed: 01/29/2023] Open
Abstract
PURPOSE To evaluate the clinical efficacy and safety of fluoroscopically guided balloon dilation for pyloric stricture associated with Crohn disease (CD) while monitoring the outcome. MATERIALS AND METHODS Five patients (age range 15-34 y) were diagnosed with symptomatic pyloric stricture associated with CD between November 2006 and August 2009. All five patients underwent fluoroscopically guided balloon dilation one or more times. RESULTS The initial balloon dilations were technically successful in all patients. Two patients showed improvement of symptoms without further need of dilation, two patients had one more session of dilation, and one patient underwent two more sessions of repeated dilation. There were no procedure-related complications. Overall technical and clinical success rates were 100%. After the last dilation, all patients remained healthy, with no case of relapse of obstructive symptoms during the median follow-up of 16 months (range 6-22 mo). CONCLUSIONS Fluoroscopically guided balloon dilation seems to be a useful tool for management of symptomatic pyloric stricture in CD and may be a viable alternative to open surgery.
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Kim JH, Song HY, Shin JH. Malignant gastric outlet obstructions: treatment with self-expandable metallic stents. Gut Liver 2010; 4 Suppl 1:S32-8. [PMID: 21103292 DOI: 10.5009/gnl.2010.4.s1.s32] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Unresectable malignant gastric outlet obstruction (GOO) severely affects the quality of life, with complications that include nausea, vomiting, aspiration, pain, and malnutrition. Although palliative surgical procedures have been traditionally performed, they are associated with high morbidity and mortality rates. Placing self-expandable metallic stents is associated with higher clinical success rates, lower morbidity, shorter time from the procedure to starting oral intake, lower incidence of delayed gastric emptying, and a shorter hospital stay than palliative surgery. Fluoroscopic or endoscopic placement of either bare or covered self-expandable metallic stents is a safe, nonsurgical, palliative treatment option for unresectable malignant GOOs, with a high clinical success rate and a low rate of serious complications. Stent obstruction and migration are the most common complications, but most can be managed by interventional treatments. Although there have been substantial developments in stent design over the past decade, large prospective, randomized studies are required to determine the ideal stent for malignant GOOs.
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Affiliation(s)
- Jin Hyoung Kim
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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Kim JH, Shin JH, Song HY. Benign strictures of the esophagus and gastric outlet: interventional management. Korean J Radiol 2010; 11:497-506. [PMID: 20808692 PMCID: PMC2930157 DOI: 10.3348/kjr.2010.11.5.497] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2010] [Accepted: 02/16/2010] [Indexed: 12/16/2022] Open
Abstract
Benign strictures of the esophagus and gastric outlet are difficult to manage conservatively and they usually require intervention to relieve dysphagia or to treat the stricture-related complications. In this article, authors review the non-surgical options that are used to treat benign strictures of the esophagus and gastric outlet, including balloon dilation, temporary stent placement, intralesional steroid injection and incisional therapy.
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Affiliation(s)
- Jin Hyoung Kim
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
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Dual-design expandable colorectal stent for malignant colorectal obstruction: comparison of flared ends and bent ends. AJR Am J Roentgenol 2009; 193:248-54. [PMID: 19542421 DOI: 10.2214/ajr.08.2003] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
OBJECTIVE The purpose of this study was to compare, focusing on colonic perforation and stent migration, the clinical safety and efficacy of dual-design expandable colorectal stents with flared ends with those of stents with bent ends in the treatment of patients with malignant colorectal obstruction. SUBJECTS AND METHODS A total of 122 patients with malignant colorectal obstruction underwent implantation of dual-design stents with flared (n = 69) or bent (n = 53) ends. RESULTS Stent placement was technically successful in 116 of 122 patients (95.1%), 65 of 69 patients (94.2%) with flared-end stents and 51 of 53 patients (96.2%) with bent-end stents (p > 0.05). Clinical success was achieved within 2 days in 61 of 65 patients (93.8%) with bent-end stents and in 46 of 51 patients (90.2%) with flared-end stents (p > 0.05). Complications included seven cases of colonic perforation (6%), seven cases of stent migration (6%), three cases of tumor overgrowth (2.6%), four cases of severe rectal pain (3.4%), and four cases of bleeding (3.4%). There were no significant differences between the rates of colonic perforation and stent migration in the two groups (6.2% vs 5.9%), and the overall complication rates were similar (p > 0.05). CONCLUSION Dual-design expandable colorectal stents with flared ends and those with bent ends are equally safe and effective, having similar perforation and migration rates.
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Kim JH, Shin JH, Song HY. Fluoroscopically guided balloon dilation for benign anastomotic stricture in the upper gastrointestinal tract. Korean J Radiol 2009; 9:364-70. [PMID: 18682675 PMCID: PMC2627276 DOI: 10.3348/kjr.2008.9.4.364] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
A benign anastomotic stricture is a common complication of upper gastrointestinal (UGI) surgery and is difficult to manage conservatively. Fluoroscopically guided balloon dilation has a number of advantages and is a safe and effective procedure for the treatment of various benign anastomotic strictures in the UGI tract.
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Affiliation(s)
- Jin Hyoung Kim
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
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Kim JH, Song HY, Choi EK, Kim KR, Shin JH, Lim JO. Temporary metallic stent placement in the treatment of refractory benign esophageal strictures: results and factors associated with outcome in 55 patients. Eur Radiol 2008; 19:384-90. [PMID: 18726598 DOI: 10.1007/s00330-008-1151-2] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2008] [Revised: 07/11/2008] [Accepted: 07/18/2008] [Indexed: 01/10/2023]
Abstract
The purpose of this study was to evaluate the effectiveness of temporary metallic stenting in 55 patients with treatment-resistant benign esophageal strictures and to identify factors associated with clinical outcomes. Under fluoroscopic guidance, covered retrievable stents were placed in 55 patients with benign esophageal strictures and were removed with retrieval hook 1 week to 6 months after placement. Stent placement was successful in all patients, and the mean dysphagia score was reduced from 2.8 to 1.3 (p<0.001). The most common complications were tissue hyperproliferation (31%), severe pain (24%), and stent migration (25%). During follow-up (mean: 38 months), recurrence of the stricture necessitating balloon dilation was seen in 38 (69%) of 55 patients. Maintained patency rates after temporary stenting at 1, 3, and 6 months and 1, 2, and 4 years were 58%, 43%, 38%, 33%, 26%, and 21%, respectively. In multivariate analysis, length (p=0.003) of the stricture was the only significant factor associated with maintained patency after temporary stenting. In conclusion, temporary metallic stenting for refractory benign esophageal strictures may be effective during the period of stent placement, but is disadvantaged by the high recurrence rates after stent removal, particularly in patients with a long length of stricture (>7 cm).
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Affiliation(s)
- Jin Hyoung Kim
- Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, 388-1 Pungnap-2dong, Songpa-gu, Seoul, 138-736, Korea
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