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Oluboyede DO, Zafar M, Shirazi F, Dsouza K, Abdulkarim A, Hacikurt K, Whitehead M. The Conservative Management of Choledocholithiasis With Ursodeoxycholic Acid. Cureus 2023; 15:e43850. [PMID: 37736472 PMCID: PMC10510569 DOI: 10.7759/cureus.43850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/20/2023] [Indexed: 09/23/2023] Open
Abstract
Choledocholithiasis has been defined as the presence of stones within the common bile duct (CBD) with up to one-half of the cases remaining asymptomatic. We report a case of an 84-year-old frail male admitted for the treatment of pneumonia, pleural effusion, and bacteraemia with co-incidental deranged liver function tests (LFTs). Ensuing magnetic resonance cholangiopancreatography (MRCP) noted three CBD stones; however, the patient remained asymptomatic. After discussing the benefits and risks of treatment options with the gastroenterology team, the patient refused endoscopic retrograde cholangiopancreatography (ERCP) and opted for close monitoring in the community whilst taking ursodeoxycholic acid (UDCA). In the months following, his LFTs normalised, and repeat MRCP no longer showed stones. This case demonstrates that UDCA with close monitoring may be considered a non-invasive alternative treatment of CBD stones, particularly in elderly or frail patients with multiple comorbidities.
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Affiliation(s)
- Daniel O Oluboyede
- Internal Medicine, Conquest Hospital, East Sussex Healthcare NHS Trust, St Leonards-on-Sea, GBR
| | - Mansoor Zafar
- Gastroenterology, Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, GBR
- Gastroenterology, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, GBR
| | - Farah Shirazi
- Internal Medicine, Conquest Hospital, East Sussex Healthcare NHS Trust, St Leonards-on-Sea, GBR
- Medicine, Jinnah Medical & Dental College, Karachi, PAK
| | - Kevin Dsouza
- Internal Medicine, Conquest Hospital, East Sussex Healthcare NHS Trust, St Leonards-on-Sea, GBR
| | - Abdulmoen Abdulkarim
- Internal Medicine, Conquest Hospital, East Sussex Healthcare NHS Trust, St Leonards-on-Sea, GBR
| | - Kadir Hacikurt
- Radiology, Conquest Hospital, East Sussex Healthcare NHS Trust, St Leonards-on-Sea, GBR
| | - Mark Whitehead
- Gastroenterology, Conquest Hospital, East Sussex Healthcare NHS Trust, St Leonards-on-Sea, GBR
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Guan Y, Xu F, Zhang X, Fu X, Wang J, Song S, Sun Y, Yuan Q, Zhu F. Roles of ursodeoxycholic acid in the bile biochemistry and metabolomics in patients with choledocholithiasis: a prospective study. Metabolomics 2022; 18:46. [PMID: 35778620 DOI: 10.1007/s11306-022-01906-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Accepted: 06/15/2022] [Indexed: 10/17/2022]
Abstract
INTRODUCTION Recurrence after the endoscopic treatment of common bile duct stones (CBDS) is related to bile metabolism and bile compositions. Ursodeoxycholic acid (UDCA) has been proved effective in reducing the recurrence of CBDS. However, the detailed effects of UDCA on bile metabolism are still not extensively explored. OBJECTIVES This study aimed to analyze the role of UDCA in patients with choledocholithiasis (CDC) from the perspective of biochemistry and metabolomics. METHODS A total of 89 patients with CDC who underwent endoscopic retrograde cholangiopancreatography were prospectively examined and randomly assigned to control and UDCA groups. The biochemical detections (cholesterol, bilirubin, and so on) were performed on the collected bile. Moreover, the metabolomics analysis was conducted based on bile from 20 patients in the UDCA group. RESULTS The bile levels of cholesterol and endotoxins significantly decreased after UDCA treatment. Regarding bile metabolomics, the levels of 25 metabolites changed significantly after UDCA treatment. The pathway enrichment analysis showed that the UDCA addition evoked a common response related to phenylalanine, tyrosine, and tryptophan biosynthesis; phenylalanine metabolism; arachidonic acid metabolism; and terpenoid backbone biosynthesis. CONCLUSIONS UDCA treatment within a short time interval (7 days) did not improve the circulating laboratory values in patients with CDC who had undergone endoscopy surgery. However, relevant decreases in the bile levels of cholesterol and endotoxin were observed. UDCA evoked a common response related to lipid metabolism and amino acid metabolism, which probably reduced the bile level of cholesterol, protected hepatocytes, and corrected the abnormality of lipid metabolism caused by CDC.
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Affiliation(s)
- Yaping Guan
- Department of Gastroenterology, Shanghai East Hospital, Tongji University School of Medicine, No. 150 Jimo Road, Pudong New District, Shanghai, 200120, China
| | - Fei Xu
- Department of Gastroenterology, Shanghai East Hospital, Tongji University School of Medicine, No. 150 Jimo Road, Pudong New District, Shanghai, 200120, China
| | - Xiaodong Zhang
- Department of Gastroenterology, Shanghai East Hospital, Tongji University School of Medicine, No. 150 Jimo Road, Pudong New District, Shanghai, 200120, China
| | - Xiao Fu
- Department of Gastroenterology, Shanghai East Hospital, Tongji University School of Medicine, No. 150 Jimo Road, Pudong New District, Shanghai, 200120, China
| | - Jing Wang
- Department of Gastroenterology, Shanghai East Hospital, Tongji University School of Medicine, No. 150 Jimo Road, Pudong New District, Shanghai, 200120, China
| | - Sentao Song
- Department of Gastroenterology, Shanghai East Hospital, Tongji University School of Medicine, No. 150 Jimo Road, Pudong New District, Shanghai, 200120, China
| | - Yan Sun
- Department of Gastroenterology, Shanghai East Hospital, Tongji University School of Medicine, No. 150 Jimo Road, Pudong New District, Shanghai, 200120, China
| | - Qiongying Yuan
- Department of Gastroenterology, Shanghai East Hospital, Tongji University School of Medicine, No. 150 Jimo Road, Pudong New District, Shanghai, 200120, China
| | - Feng Zhu
- Department of Gastroenterology, Shanghai East Hospital, Tongji University School of Medicine, No. 150 Jimo Road, Pudong New District, Shanghai, 200120, China.
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Ji X, Jia W, Zhao Q, Wang Y, Ma SR, Xu L, Kan Y, Cao Y, Fan BJ, Yang Z. Common bile duct morphology is associated with recurrence of common bile duct stones in Billroth II anatomy patients. World J Clin Cases 2021; 9:7671-7681. [PMID: 34621818 PMCID: PMC8462226 DOI: 10.12998/wjcc.v9.i26.7671] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/20/2021] [Accepted: 07/29/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Endoscopic retrograde cholangiopancreatography (ERCP) is the primary choice for removing common bile duct (CBD) stones in Billroth II anatomy patients. The recurrence of CBD stones is still a challenging problem.
AIM To evaluate CBD morphology and other predictors affecting CBD stone recurrence.
METHODS A retrospective case-control analysis was performed on 138 CBD stones patients with a history of Billroth II gastrectomy, who underwent therapeutic ERCP for stone extraction at our center from January 2011 to October 2020. CBD morphology and other predictors affecting CBD stone recurrence were examined by univariate analysis and multivariate logistic regression analysis.
RESULTS CBD morphology (P < 0.01) and CBD diameter ≥ 1.5 cm (odds ratio [OR] = 6.15, 95% confidence interval [CI]: 1.87-20.24, P < 0.01) were the two independent risk factors. In multivariate analysis, the recurrence rate of patients with S type was 16.79 times that of patients with straight type (OR = 16.79, 95%CI: 4.26-66.09, P < 0.01), the recurrence rate of patients with polyline type was 4.97 times that of patients with straight type (OR = 4.97, 95%CI: 1.42-17.38, P = 0.01), and the recurrence rate of S type patients was 3.38 times that of patients with polyline type (OR = 3.38, 95%CI: 1.07-10.72, P = 0.04).
CONCLUSION CBD morphology, especially S type and polyline type, is associated with increased recurrence of CBD stones in Billroth II anatomy patients.
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Affiliation(s)
- Xu Ji
- Department of Digestive Endoscopy, General Hospital of Northern Theater Command, Shenyang 110840, Liaoning Province, China
- Postgraduate College, Dalian Medical University, Dalian 116044, Liaoning Province, China
| | - Wen Jia
- Department of Digestive Endoscopy, General Hospital of Northern Theater Command, Shenyang 110840, Liaoning Province, China
| | - Qian Zhao
- Department of Digestive Endoscopy, General Hospital of Northern Theater Command, Shenyang 110840, Liaoning Province, China
- Postgraduate College, Dalian Medical University, Dalian 116044, Liaoning Province, China
| | - Yao Wang
- Department of Digestive Endoscopy, General Hospital of Northern Theater Command, Shenyang 110840, Liaoning Province, China
- Postgraduate College, Liaoning University of Traditional Chinese Medicine, Shenyang 110847, Liaoning Province, China
| | - Shu-Ren Ma
- Department of Digestive Endoscopy, General Hospital of Northern Theater Command, Shenyang 110840, Liaoning Province, China
| | - Lu Xu
- Department of Digestive Endoscopy, General Hospital of Northern Theater Command, Shenyang 110840, Liaoning Province, China
- Postgraduate College, Dalian Medical University, Dalian 116044, Liaoning Province, China
| | - Ying Kan
- Department of Digestive Endoscopy, General Hospital of Northern Theater Command, Shenyang 110840, Liaoning Province, China
- Postgraduate College, Jinzhou Medical University, Jinzhou 121001, Liaoning Province, China
| | - Yang Cao
- Department of Digestive Endoscopy, General Hospital of Northern Theater Command, Shenyang 110840, Liaoning Province, China
- Postgraduate College, Jinzhou Medical University, Jinzhou 121001, Liaoning Province, China
| | - Bao-Jun Fan
- Department of Digestive Endoscopy, General Hospital of Northern Theater Command, Shenyang 110840, Liaoning Province, China
- Postgraduate College, Liaoning University of Traditional Chinese Medicine, Shenyang 110847, Liaoning Province, China
| | - Zhuo Yang
- Department of Digestive Endoscopy, General Hospital of Northern Theater Command, Shenyang 110840, Liaoning Province, China
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Rodrigues T, Boike JR. Biliary Strictures: Etiologies and Medical Management. Semin Intervent Radiol 2021; 38:255-262. [PMID: 34393335 DOI: 10.1055/s-0041-1731086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Biliary strictures have several etiologies that can broadly be classified into benign and malignant causes. The clinical presentation is variable with strictures identified incidentally on imaging or during the evaluation of routine laboratory abnormalities. Symptoms and cholangitis lead to imaging that can diagnose biliary strictures. The diagnosis and medical management of biliary strictures will be discussed in this article.
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Affiliation(s)
- Terrance Rodrigues
- Division of Gastroenterology and Hepatology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Justin R Boike
- Division of Gastroenterology and Hepatology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
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Narula VK, Fung EC, Overby DW, Richardson W, Stefanidis D. Clinical spotlight review for the management of choledocholithiasis. Surg Endosc 2020; 34:1482-1491. [DOI: 10.1007/s00464-020-07462-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Accepted: 02/13/2020] [Indexed: 02/07/2023]
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Mahalingam S, Langdon J, Muniraj T, Do A, Guo Y, Spektor M, Mathur M. Endoscopic Retrograde Cholangiopancreatography: Deciphering the Black and White. Curr Probl Diagn Radiol 2020; 50:74-84. [PMID: 32063296 DOI: 10.1067/j.cpradiol.2020.01.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 01/01/2020] [Accepted: 01/06/2020] [Indexed: 12/12/2022]
Abstract
Endoscopic Retrograde Cholangiopancreatography (ERCP) remains the conventional method of imaging the pancreatic and biliary tree and is performed by direct injection of iodinated contrast material via the major papilla. This diagnostic procedure gained popularity in the 1970s and subsequently paved way for ERCP guided interventions such as sphincterotomy, stone retrieval and stent placement. Currently, therapeutic ERCP is more widespread than diagnostic ERCP primarily due to the availability of noninvasive imaging. Nevertheless, more than half a million ERCPs are performed annually in the United States and radiologists need to be comfortable interpreting them. The following review will familiarize the reader with the imaging appearances of biliary and pancreatic disorders on conventional ERCP, and elaborate on therapeutic ERCP with illustrative examples.
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Affiliation(s)
- Sowmya Mahalingam
- Department of Radiology and Biomedical Imaging, Yale University School of Medicine, New Haven, CT.
| | - Jonathan Langdon
- Department of Radiology and Biomedical Imaging, Yale University School of Medicine, New Haven, CT
| | | | - Albert Do
- Yale University School of Medicine, Section of Digestive Diseases, New Haven, CT
| | - Yang Guo
- Department of Radiology and Biomedical Imaging, Yale University School of Medicine, New Haven, CT; Brigham and Women's Hospital, Brookline, MA
| | - Michael Spektor
- Department of Radiology and Biomedical Imaging, Yale University School of Medicine, New Haven, CT
| | - Mahan Mathur
- Department of Radiology and Biomedical Imaging, Yale University School of Medicine, New Haven, CT
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Kwon CI, Kim G, Jeong S, Choi SH, Ko KH, Lee DH, Cho JY, Hong SP. Experimental study on the friction effect of plastic stents for biliary stone fragmentation (with video). Dig Endosc 2018. [PMID: 28622426 DOI: 10.1111/den.12906] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND AND AIM In patients with irretrievable or intractable bile duct stone, temporary insertion of a plastic stent (PS) followed by further endoscopic retrograde cholangiopancreatography (ERCP) or surgery has been recommended as a 'bridge' therapy. However, the exact mechanism of stone fragmentation has not been discovered. The aim of the present study was to evaluate whether PS shape can facilitate stone fragmentation. METHODS Using a new in vitro bile flow phantom model, we compared the friction effect among three different PS groups (straight PS group, double pigtail-shaped PS group, and screw-shaped PS group) and a control group. Each group had 10 silicon tube blocks that separately contained one stone and two PS. The control group had 10 blocks each with only a stone and no PS. We carried out analysis of the friction effect by stone weight and volume changes among the groups, excluding fragmented stones. RESULTS After 8 weeks, complete fragmentation was noted in one out of 34 cholesterol stones (2.9%) and in four out of six pigmented stones (66.7%). Fragmentation tended to be more prominent in the screw-shaped PS group than in the straight PS group, double pigtail-shaped group, and control group (volume change: -11.33%, 7.94%, 4.43%, and 2.05%, respectively, P = 0.1390; weight change: -9.30%, 0.71%, -0.10%, and -1.23%, respectively, P = 0.3553). CONCLUSION Stone fragmentation may be induced by PS friction effect. Also, screw-shaped plastic stents may improve friction effect. These results may help guide future PS development and clinical decisions.
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Affiliation(s)
- Chang-Il Kwon
- Digestive Disease Center, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Gwangil Kim
- Department of Pathology, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Seok Jeong
- Division of Gastroenterology, Department of Internal Medicine, Inha University School of Medicine, Incheon, Korea
| | - Sung Hoon Choi
- Digestive Disease Center, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Kwang Hyun Ko
- Digestive Disease Center, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Don Haeng Lee
- Division of Gastroenterology, Department of Internal Medicine, Inha University School of Medicine, Incheon, Korea
| | - Joo Young Cho
- Digestive Disease Center, CHA Bundang Medical Center, CHA University, Seongnam, Korea
| | - Sung Pyo Hong
- Digestive Disease Center, CHA Bundang Medical Center, CHA University, Seongnam, Korea
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The Stent Patency and Migration Rate of Different Shaped Plastic Stents in Bile Flow Phantom Model and In Vivo Animal Bile Duct Dilation Model. Dig Dis Sci 2017; 62:1246-1255. [PMID: 28281171 DOI: 10.1007/s10620-017-4514-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Accepted: 02/25/2017] [Indexed: 12/13/2022]
Abstract
BACKGROUND/AIM In research and development of biliary plastic stents (PS), continuous efforts have been made to overcome short patency time and high rate of migration. The aim of this study was to evaluate the patency and migration rate of different PS shapes for a given period of time. METHODS Using an in vitro bile phantom model, we compared the patency among different shapes of PS (three straight PS, four double-pigtail PS, and a new screw-shaped PS). We performed an analysis of the degree of luminal narrowing by light microscopic examination. Using an in vivo swine model, we compared the patency and migration rate among the three different types of PS. RESULTS Eight weeks after the bile exposure in the bile flow phantom model, 80 PS were retrieved and analyzed. The straight PS showed less biofilm formation and luminal narrowing than other types of PS (p < 0.05). Forty-nine PS were inserted into the dilated bile ducts of 10 swine models, and 39 PS were successfully retrieved 8 weeks later. The stent migration occurred less frequently in the double-pigtail PS and the screw-shaped PS than it did in the straight PS (11.1, 10, and 27.3%, respectively). However, there was no statistical difference in stent patency among the different shapes. CONCLUSIONS Stent patency may not be significantly different depending on the shape of PS for 8 weeks. The screw-shaped PS showed similar patency and migration rate to the double-pigtail PS. These results may help guiding future PS development and clinical decisions.
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Hartery K, Lee CS, Doherty GA, Murray FE, Cullen G, Patchett SE, Mulcahy HE. Covered self-expanding metal stents for the management of common bile duct stones. Gastrointest Endosc 2017; 85:181-186. [PMID: 27262891 DOI: 10.1016/j.gie.2016.05.038] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 05/25/2016] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS Little medical literature exists for the use of fully covered self-expanding metal stents (CSEMSs) in the management of retained common bile duct (CBD) stones. Our aim was to assess the safety and efficacy of CSEMSs for the indication of retained "difficult" CBD stones. METHODS This retrospective cases series included 44 patients (30 women; median age, 69 years [range, 24-88]) who underwent CSEMS insertion for the indication of retained "difficult" CBD stones in 2 tertiary referral centers. Patients underwent temporary placement of CSEMSs after incomplete stone clearance at ERCP. Follow-up ERCP was arranged for stent removal and subsequent attempt at duct clearance. Procedure-related adverse events were also recorded. RESULTS Successful biliary drainage was achieved in all cases after CSEMS placement. Forty-two stents were removed with successful duct clearance achieved in 36 cases (82%) after a median in-stent duration of 8 weeks. There were 10 cases (22.7%) of stent migration, all noted incidentally during follow-up. One patient died of nonbiliary causes before attempted removal. CONCLUSION This is the largest published retrospective case series for use of CSEMSs for management of retained CBD stone disease to date. We have shown high success rates for this indication. A well-designed, multicenter, randomized controlled trial might address the uncertainty of cost-to-benefit ratio and appropriate duration for CSEMSs to be left in situ. Specific stent modification for this indication, including wider distal flare and retrieval purse string loop, may also be useful.
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Affiliation(s)
- Karen Hartery
- Department of Gastroenterology, St. Vincent's University Hospital and School of Medicine and Medical Sciences, University College Dublin, Dublin, Ireland
| | - Chung Sen Lee
- Department of Gastroenterology, St. Vincent's University Hospital and School of Medicine and Medical Sciences, University College Dublin, Dublin, Ireland
| | - Glen A Doherty
- Department of Gastroenterology, St. Vincent's University Hospital and School of Medicine and Medical Sciences, University College Dublin, Dublin, Ireland
| | - Frank E Murray
- Department of Gastroenterology, Beaumont Hospital and Royal College of Surgeons, Dublin, Ireland
| | - Garret Cullen
- Department of Gastroenterology, St. Vincent's University Hospital and School of Medicine and Medical Sciences, University College Dublin, Dublin, Ireland
| | - Stephen E Patchett
- Department of Gastroenterology, Beaumont Hospital and Royal College of Surgeons, Dublin, Ireland
| | - Hugh E Mulcahy
- Department of Gastroenterology, St. Vincent's University Hospital and School of Medicine and Medical Sciences, University College Dublin, Dublin, Ireland
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Yasuda I, Itoi T. Recent advances in endoscopic management of difficult bile duct stones. Dig Endosc 2013; 25:376-85. [PMID: 23650878 DOI: 10.1111/den.12118] [Citation(s) in RCA: 83] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Accepted: 03/21/2013] [Indexed: 12/12/2022]
Abstract
Endoscopic treatment is now recognized worldwide as the first-line treatment for bile duct stones. Endoscopic sphincterotomy combined with basket and/or balloon catheter is generally carried out for stone extraction. However, some stones are refractory to treatment under certain circumstances, necessitating additional/other therapeutic modalities. Large bile duct stones are typically treated by mechanical lithotripsy. However, if this fails, laser or electrohydraulic lithotripsy (EHL) is carried out under the guidance of conventional mother-baby cholangioscopy. More recently, direct cholangioscopy using an ultrathin gastroscope and the newly developed single-use cholangioscope system - the SpyGlass direct visualization system - are also used. In addition, extracorporeal shock wave lithotripsy has also been used for stone fragmentation. Such fragmentation techniques are effective in cases with impacted stones, including Mirizzi syndrome. Most recently, endoscopic papillary large balloon dilationhas been introduced as an easy and effective technique for treating large and multiple stones. In cases of altered anatomy, it is often difficult to reach the papilla; in such cases, a percutaneous transhepatic approach, such as EHL or laser lithotripsy under percutaneous transhepatic cholangioscopy, can be a treatment option. Moreover, enteroscopy has recently been used to reach the papilla. Furthermore, an endoscopic ultrasound-guided procedure has been attempted most recently. In elderly patients and those with very poor general condition, biliary stenting only is sometimes carried out with or without giving subsequent dissolution agents.
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Affiliation(s)
- Ichiro Yasuda
- First Department of Internal Medicine, Gifu University Hospital, Gifu, Japan.
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Abstract
It is imperative for gastroenterologists to understand the different formations of bile duct stones and the various medical treatments available. To minimize the complications of endoscopic retrograde cholangiopancreatography (ERCP), it is critical to appropriately assess the risk of bile duct stones before intervention. Biliary endoscopists should be comfortable with the basic techniques of stone removal, including sphincterotomy, mechanical lithotripsy, and stent placement. It is important to be aware of advanced options, including laser and electrohydraulic stone fragmentation, and papillary dilatation for problematic cases. The timing and need for ERCP in those who require a cholecystectomy is also a consideration.
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Affiliation(s)
- James Buxbaum
- Division of Gastrointestinal and Liver Diseases, Keck School of Medicine, Los Angeles County Hospital, University of Southern California, Los Angeles, CA 90033-1370, USA.
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Nishizawa T, Suzuki H, Takahashi M, Kaneko H, Suzuki M, Hibi T. Effect of ursodeoxycholic acid and endoscopic sphincterotomy in long-term stenting for common bile duct stones. J Gastroenterol Hepatol 2013; 28:63-7. [PMID: 23094786 DOI: 10.1111/jgh.12012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/03/2012] [Indexed: 12/17/2022]
Abstract
BACKGROUND AND AIM We investigated the patency rate of a biliary stent and the effects of ursodeoxycholic acid (UDCA) therapy and endoscopic sphincterotomy (EST) for difficult-to-remove common bile duct stones. METHOD A total of 63 endoscopic retrograde cholangiopancreatographies (ERCPs) were performed in 36 patients (mean age, 86.0 years; male-female, 17:19) for stenting. Among the 63 subjects, 28 were further treated with EST; 20, with UDCA therapy; and 43, without UDCA therapy. RESULTS The mean patency time was significantly longer in the UDCA treatment group (1,012 days) than in the "stent without UDCA" group (354 days; P = 0.0002; hazard ratio, 0.253). The mean patency time was significantly longer in the patients who had stent placement with EST (1074 days) than in those who had stent placement without EST (279 days; P = 0.001; hazard ratio, 0.439). The mean patency time was significantly longer in the patients who had stent placement with UDCA therapy and EST (1211 days) than in the patients who had stent placement with either UDCA therapy or EST (425 days; P = 0.031; hazard ratio, 0.3292). The mean patency time was significantly longer in the patients who had stent placement with either UDCA therapy or EST than in those who had stent placement without UDCA therapy or EST (263 days; P = 0.0465; hazard ratio, 0.5124). CONCLUSION Biliary stenting combined with UDCA therapy and EST may be considered as an effective treatment method for cases of common bile duct stones in elderly patients that are difficult to remove.
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Affiliation(s)
- Toshihiro Nishizawa
- Division of Gastroenterology, National Hospital Organization Tokyo Medical Center, Meguro-ku, Tokyo, Japan
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Yang J, Peng JY, Chen W. Endoscopic biliary stenting for irretrievable common bile duct stones: Indications, advantages, disadvantages, and follow-up results. Surgeon 2012; 10:211-7. [PMID: 22647840 DOI: 10.1016/j.surge.2012.04.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2012] [Revised: 04/24/2012] [Accepted: 04/26/2012] [Indexed: 12/23/2022]
Abstract
BACKGROUND The advantages of endoscopic retrograde cholangiopancreatography (ERCP) over open surgery have made it the predominant method of treating patients with choledocholithiasis. After sphincterotomy, however, 10%-15% of common bile duct (CBD) stones cannot be removed with a basket or balloon. Methods for managing "irretrievable stones" include surgery; mechanical, intraductal shock wave, and extracorporeal shock wave lithotripsy; chemical dissolution; and biliary stenting. Endoscopic biliary stent insertion, which is frequently used in specific situations, has both advantages and disadvantages. To maximize the advantages and minimize the complications of biliary endoprosthesis, it is important to recognize its proper indications and to apply the technique in proper situations. DATA SOURCES We reviewed all publications cited in Pubmed and published through July 2011 on biliary endoprosthesis in patients with irretrievable CBD stones. We analyzed the indications, advantages, disadvantages, and long-term follow-up results of this technique. RESULTS Despite the occurrence of related complications, such as cholangitis, endoscopic placement of an endoprosthesis may reduce stone size, allowing later clearance of unextractable stones. Permanent biliary stenting may be a definitive treatment in selected elderly patients who are poor candidates for surgery. CONCLUSION Endoscopic biliary stenting remains a simple and safe method for patients with stones difficult to manage by conventional endoscopic methods and those patients unfit for surgery or at high surgical risks.
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Affiliation(s)
- Jun Yang
- Department of Surgery, The Sixth People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai 200233, China
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The role of endoscopy in the management of choledocholithiasis. Gastrointest Endosc 2011; 74:731-44. [PMID: 21951472 DOI: 10.1016/j.gie.2011.04.012] [Citation(s) in RCA: 119] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2011] [Accepted: 04/06/2011] [Indexed: 12/15/2022]
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Is the addition of choleretic agents in multiple double-pigtail biliary stents effective for difficult common bile duct stones in elderly patients? A prospective, multicenter study. Gastrointest Endosc 2011; 74:96-102. [PMID: 21531412 DOI: 10.1016/j.gie.2011.03.005] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2010] [Accepted: 03/06/2011] [Indexed: 02/08/2023]
Abstract
BACKGROUND Temporary biliary stenting is both technically easy and feasible, and choleretic agents such as ursodeoxycholic acid (UDCA) and a terpene preparation may promote a reduction in stone size. However, there are few comparative data on the effectiveness of choleretic agents available. OBJECTIVE To investigate the efficacy of multiple double-pigtail stents with or without UDCA and terpene on difficult common bile duct (CBD) stones. DESIGN A prospective, multicenter study. SETTING Four tertiary-care referral centers. PATIENTS This study involved 51 patients. INTERVENTION In total, 51 elderly patients with comorbidities who had difficult CBD stones refractory to conventional methods were randomized to receive either multiple 7F double-pigtail stents (group A) or stents in combination with UDCA and terpene (group B) for a period of 6 months. MAIN OUTCOME MEASUREMENTS Stone size reduction, successful duct clearance, and complications. RESULTS Complete endoscopic duct clearance was achieved in 14 patients (73.7%) in group A and 19 patients (86.4%) in group B (P = .826). The mean size of CBD stones (transverse/longitudinal diameter, mean ± SD) was 19.12 ± 4.48 mm/20.47 ± 3.86 mm in group A and 21.30 ± 7.08 mm/22.58 ± 7.61 mm in group B. Stone size decreased significantly to 12.04 ± 3.26 mm/13.31 ± 5.12 mm and 13.67 ± 5.40 mm/14.04 ± 6.12 mm, respectively (P < .01). However, there was no statistical difference in stone size reduction between the two groups (P = .685, P = .289). No serious complications related to the stent or endoscopic procedures were observed, except for cholangitis (n = 1, group A) and distal stent migration (n = 2, group B). LIMITATIONS Small number of patients in East Asia. CONCLUSION Temporary multiple double-pigtail biliary stenting was a safe and feasible method of treating difficult and large CBD stones in elderly patients and contributed to a reduction in stone size and successful duct clearance. However, the addition of choleretic agents did not result in a statistical difference in stone size or rate of successful duct clearance.
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Baillie J. Biliary stenting in the management of large or multiple common bile duct stones. Gastrointest Endosc 2011; 73:644; author reply 644-5. [PMID: 21353871 DOI: 10.1016/j.gie.2010.06.038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2010] [Accepted: 06/15/2010] [Indexed: 12/11/2022]
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Abstract
Bile duct stone management has greatly changed in the past 2 decades. Open surgical techniques have mostly been replaced by transoral endoscopic techniques. Routine common bile duct stones can be managed by standard biliary endoscopic sphincterotomy and extraction. Various advanced transoral techniques can also manage most difficult ductal stones. In skilled centers, laparoscopic ductal stone management has assumed a back-up role.
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Combination of endoprostheses and oral ursodeoxycholic acid or placebo in the treatment of difficult to extract common bile duct stones. Dig Liver Dis 2008; 40:453-9. [PMID: 18187374 DOI: 10.1016/j.dld.2007.11.012] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2007] [Revised: 11/02/2007] [Accepted: 11/14/2007] [Indexed: 12/11/2022]
Abstract
BACKGROUND When common bile duct (CBD) stones cannot be removed after conventional endoscopic techniques or mechanical lithotripsy, biliary stenting serves for further planned endoscopic attempt of stone removal or operation. The aim of our study was to investigate the effect of ursodeoxycholic acid (UDCA) or placebo plus endoprostheses on stones' fragmentation or size. METHODS Forty-one patients with difficult to extract CBD stones were prospectively studied. They were randomised to receive either a 10 Fr straight plastic stent and oral 750 mg UDCA (group A, 21 patients) or placebo (group B, 20 patients) daily for 6 months. RESULTS A total clearance of CBD was achieved in 16 patients (76.9%) of group A and 15 patients (75%) of group B. The stones remained unchanged in size in five patients (23.8%) of group A and five patients (25%) of group B. In seven patients (33%) of group A and five patients (25%) of group B a repeated ERCP demonstrated fragmentation of CBD stones that were easily extracted. A reduction in stones' size was observed in 8 patients (38%) of group A (1.61 +/- 0.32 cm before treatment vs. 1.21 +/- 0.24 cm after treatment, p = 0.002) and 10 patients (50%) of group B (1.61 +/- 0.35 cm before vs. 1.24+/-0.22 cm after treatment, p = 0.001). There was no statistically significant difference on stone size reduction (p = 0.602) and fragmentation (p=0.558) between the two groups. CONCLUSION The results of this study suggest that UDCA does not seem to contribute to the reduction in stones' size or stones' fragmentation during the endoprosthetic procedure.
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Abstract
Bile duct stones are routinely removed at time of endoscopic retrograde cholangiopancreatography (ERCP) after biliary sphincterotomy with standard balloon or basket extraction techniques. However, in approximately 10% to 15% of patients, bile duct stones may be difficult to remove due to challenging access to the bile duct (periampullary diverticulum, Billroth II anatomy, Roux-en-Y gastrojejunostomy), large (> 15 mm in diameter) bile duct stones, intrahepatic stones, or impacted stones in the bile duct or cystic duct. The initial approach to the removal of the difficult bile duct stone is to ensure adequate biliary sphincter orifice diameter with extension of biliary sphincterotomy or balloon dilation of the orifice. Mechanical lithotripsy is a readily available adjunct to standard stone extraction techniques and should be available in all ERCP units. If stone extraction fails with these maneuvers, two or more bile duct stents should be inserted, and ursodiol added to aid in duct decompression, stone fragmentation, and stone dissolution. Follow-up ERCP attempts to remove the difficult bile duct stones may be performed locally if expertise is available or alternatively referred to a tertiary center for advanced extracorporeal or intracorporeal fragmentation (mother-baby laser or electrohydraulic lithotripsy) techniques. Nearly all patients with bile duct stones can be treated endoscopically if advanced techniques are utilized. For the rare patient who fails despite these efforts, surgical bile duct exploration, percutaneous approach to the bile duct, or long-term bile duct stenting should be discussed with the patient and family to identify the most appropriate therapeutic option. A thoughtful approach to each patient with difficult bile duct stones and a healthy awareness of the operator/endoscopy unit limitations is necessary to ensure the best patient outcomes. Consultation with a dedicated tertiary ERCP specialty center may be necessary.
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Affiliation(s)
- Lee McHenry
- Indiana University Medical Center, Indianapolis, IN 46202, USA.
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Caddy GR, Tham TCK. Gallstone disease: Symptoms, diagnosis and endoscopic management of common bile duct stones. Best Pract Res Clin Gastroenterol 2006; 20:1085-101. [PMID: 17127190 DOI: 10.1016/j.bpg.2006.03.002] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Bile duct stones (BDS) are often suspected on history and clinical examination alone but symptoms may be variable ranging from asymptomatic to complications such as biliary colic, pancreatitis, jaundice or cholangitis. The majority of BDS can be diagnosed by transabdominal ultrasound, computed tomography, endoscopic ultrasound or magnetic resonance cholangiography prior to endoscopic or laparoscopic removal. Approximately 90% of BDS can be removed following endoscopic retrograde cholangiography (ERC)+sphincterotomy. Most of the remaining stones can be removed using mechanical lithotripsy. Patients with uncorrected coagulopathies may be treated with ERC+pneumatic dilatation of the sphincter of Oddi. Shockwave lithotripsy (intraductal and extracorporeal) and laser lithotripsy have also been used to fragment large bile duct stones prior to endoscopic removal. The role of medical therapy in treatment of BDS is currently uncertain. This review focuses on the clinical presentation, investigation and current management of BDS.
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Affiliation(s)
- Grant R Caddy
- Department of Gastroenterology, Ulster Hospital, Dundonald, Belfast, Northern Ireland, UK.
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21
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Abstract
The advantages of endoscopic retrograde cholangiopancreatography (ERCP) over open surgery make it the predominant method of treating choledocholithiasis. Today, technologic advances such as magnetic resonance cholangiopancreatography and laparoscopic surgery are challenging ERCP's primacy in the management of common bile duct (CBD) stones. This article reviews the current status of endoscopic treatment of biliary stones and examines this in relation to laparoscopic management. The techniques and safety of endoscopic sphincterotomy and balloon sphincteroplasty are reviewed. Balloon sphincteroplasty should be limited to study protocols because of safety questions and inherent limitations. After sphincterotomy, 85% to 90% of CBD stones can be removed with a Dormia basket or balloon catheter. These techniques are described as having both advantages and disadvantages. Methods for managing "difficult stones" include mechanical lithotripsy, intraductal shock wave lithotripsy, extracorporeal shock wave lithotripsy, chemical dissolution, and biliary stenting. These approaches are presented along with data supporting their use in specific situations. Laparoscopic cholecystectomy has emerged as the preferred alternative to open cholecystectomy. Parallel advances in the endoscopic and laparoscopic management of CBD stones have made the issue regarding the optimal treatment strategy complex. Three approaches to the management of choledocholithiasis in the laparoscopic era are presented as follows: strict therapeutic splitting, flexible therapeutic splitting, and strict laparoscopic management. The optimal approach needs to be defined in prospective comparative trials. For now, preoperative endoscopic stone extraction should still be recommended as the approach of choice in patients suspected to have CBD stones based on clinical, biochemical, and imaging parameters. Primary laparoscopic evaluation and management is reasonable in patients who have a low-to-moderate probability of having CBD stones.
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Affiliation(s)
- K F Binmoeller
- Department of Medicine and Surgery, University of California, San Diego 92103-8413, USA.
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Jain SK, Stein R, Bhuva M, Goldberg MJ. Pigtail stents: an alternative in the treatment of difficult bile duct stones. Gastrointest Endosc 2000; 52:490-3. [PMID: 11023565 DOI: 10.1067/mge.2000.108409] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
BACKGROUND When bile duct stones cannot be removed after sphincterotomy by balloon or basket extraction, stent placement can serve as a bridge to additional procedures. Biliary stents may also fragment large stones, allowing them to pass spontaneously or making them easier to extract at a later time. METHODS Twenty patients with difficult to extract bile duct stones were prospectively studied. The patients underwent ERCP and placement of a 7F double-pigtail stent in the bile duct for 6 months. RESULTS In seven patients (35%), repeat ERCP revealed no stones in the duct. Four patients (20%) had small stone fragments that were easily extracted with a balloon. Six patients (30%) continued to have large stones at repeat ERCP; two of these patients eventually underwent surgery, the duct was cleared in three with mechanical lithotripsy, and one had long-term stenting. Three patients (15%) did not undergo repeat ERCP and were therefore treated with long-term stent placement. CONCLUSIONS This study suggests that placement of a pigtail biliary stent is a safe and effective alternative in the management of bile duct stones that resist extraction if lithotripsy is not available. After 6 months of stent placement, stones may pass or become easier to remove in a significant proportion of patients.
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Affiliation(s)
- S K Jain
- Section of Gastroenterology, Department of Medicine, University of Chicago Hospital, Chicago, Illinois 60637, USA
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Choudhuri G, Sharma BC, Saraswat VA, Agarwal DK, Baijal SS. Biliary stenting for management of common bile duct stones. J Gastroenterol Hepatol 1998; 13:594-7. [PMID: 9715402 DOI: 10.1111/j.1440-1746.1998.tb00696.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Large and multiple common bile duct stones may defy extraction despite an adequate endoscopic papillotomy. We treated 65 patients with symptomatic bile duct stones with endoscopic stents after failed attempts at stone extraction. Of the 65 patients, bile duct stones were extracted in eight at a second attempt, 29 underwent elective surgery and 28 patients were followed with the stent in situ for 21-52 months (median 42 months). During follow up, two patients had recurrent pain and two required surgery. The remaining 24 patients remained asymptomatic. Biliary stenting is a safe and effective mode of treatment for common bile duct stones in patients who have failed stone extraction after endoscopic papillotomy.
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Affiliation(s)
- G Choudhuri
- Department of Gastroenterology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
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Molinari G, Pugliese V, Schito GC, Guzmán CA. Bacteria involved in the blockage of biliary stents and their susceptibility to antibacterial agents. Eur J Clin Microbiol Infect Dis 1996; 15:88-92. [PMID: 8641313 DOI: 10.1007/bf01586194] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Endoscopically inserted stents are used for the palliation of obstructive jaundice, but infections and blockage of these stents by biliary sludge and bacterial biofilm may develop, presenting major complications. To analyze which bacteria are involved in this process, 25 biliary stents were examined. Eighty-one microorganisms were isolated: 59 gram-negative bacteria (54 Enterobacteriaceae and 5 Pseudomonas aeruginosa), 19 gram-positive bacteria (all Enterococcus spp.), and 3 Candida albicans. The Enterobacteriaceae were sensitive to netilmicin (100%), imipenem (98%), ciprofloxacin (96%), cefotaxime (69%), and piperacillin (57%), whereas Enterococcus spp. were sensitive to imipenem (79%), piperacillin (75%), ciprofloxacin (63%), and ampicillin (58%). The unpredictable aetiology and high rates of antibiotic resistance suggest that bacteriological monitoring is mandatory to avoid treatment failures in these patients.
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Affiliation(s)
- G Molinari
- Institute of Microbiology, University of Genoa, Italy
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Mathuna PM, White P, Clarke E, Merriman R, Lennon JR, Crowe J. Endoscopic balloon sphincteroplasty (papillary dilation) for bile duct stones: efficacy, safety, and follow-up in 100 patients. Gastrointest Endosc 1995; 42:468-74. [PMID: 8566640 DOI: 10.1016/s0016-5107(95)70052-8] [Citation(s) in RCA: 158] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND Because sphincterotomy accounts for a major portion of the morbidity and mortality associated with ERCP, we have proposed endoscopic balloon papillary dilation or sphincteroplasty as an alternative. METHODS We report the outcome in a series of 100 patients in whom balloon sphincteroplasty was attempted for bile duct stones up to 20 mm in diameter, with a median follow-up of 16 months (range 6 to 30). RESULTS During one ERCP session using sphincteroplasty alone, the bile duct was cleared in 78%, mechanical lithotripsy being required in 10% for stones greater than 12 mm in diameter. Incomplete duct clearance was achieved in a further 4%, all of whom underwent repeat ERCP with successful duct clearance without recourse to sphincterotomy. Failure to clear the bile duct with sphincteroplasty in the remaining 18% was primarily related to large stone size ( > 15 mm). Sphincterotomy was required to clear the duct in 7%. Another 6% comprised elderly high-risk patients with multiple large stones greater than 15 mm who were treated by stent insertion plus ursodeoxycholic acid. No papillary hemorrhage was observed; uncomplicated pancreatitis occurred in 5%. During a median follow-up of 16 months, 2% had recurrent symptomatic bile duct stones considered to have been unrecognized following the initial ERCP: these were removed after repeat sphincteroplasty. No clinical evidence of papillary stenosis was observed during follow-up. CONCLUSIONS Endoscopic balloon papillary dilation or sphincteroplasty is a safe and effective alternative to sphincterotomy in the management of bile duct stones less than 12 mm; larger stones may require mechanical lithotripsy to facilitate duct clearance.
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Affiliation(s)
- P M Mathuna
- Gastrointestinal Unit, Mater Misericordiae Hospital, University College Dublin, Ireland
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Maxton DG, Tweedle DE, Martin DF. Retained common bile duct stones after endoscopic sphincterotomy: temporary and longterm treatment with biliary stenting. Gut 1995; 36:446-9. [PMID: 7698707 PMCID: PMC1382463 DOI: 10.1136/gut.36.3.446] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Basket extraction after endoscopic sphincterotomy failed to clear the bile ducts immediately in 85 (30%) of 283 consecutive patients with common bile duct stones. Temporary biliary drainage was established by the insertion of a single 7 Fr double pigtail stent before further planned endoscopic attempts at stone removal. In 84 patients (21 male: 63 female, mean age 77 years) this measure relieved biliary obstruction, mean serum bilirubin falling from 101 to 18 umol/l by the time of the second endoscopic retrograde cholangiopancreatography. Six patients died from non-biliary causes with temporary stents in situ. Common bile duct stone extraction was achieved endoscopically in 50 of the remaining 79 patients after a mean of 4.3 months (range 1-12), 34 (68%) requiring only one further procedure. Three patients were referred for biliary surgery. Single stents were also effective for longterm biliary drainage in the remaining 26 elderly patients with unextractable stones. The main biliary complication of stenting was 13 episodes of cholangitis but all except one responded to medical treatment and early stent exchange. If common bile duct stones remain after endoscopic sphincterotomy, a single 7 Fr double pigtail stent is effective and safe for temporary biliary drainage before further endoscopic attempts at duct clearance and for longterm biliary drainage especially in the old and frail.
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Hixson LJ. Biliary obstruction. Postgrad Med 1993; 94:61-74. [PMID: 29206562 DOI: 10.1080/00325481.1993.11945744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Preview In a state-of-the art medical center, stones in the bile duct can be fragmented with stone-crushing baskets or electro- hydraulic or laser probes passed through an endoscope. Or they can be snared in a basket catheter inserted through a T-tube tract and guided by fluoroscopy. Expanding metallic mesh stents are being developed for use in biliary strictures and may have prolonged patency. However, as Dr Hixson emphasizes, the success of these and the other techniques described in this article depends on the skill and experience of available endoscopists and interventional radiologists.
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