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Desprez C, Leroi AM, Gourcerol G. Gastric and sacral electrical stimulation for motility disorders-A clinical perspective. Neurogastroenterol Motil 2024:e14884. [PMID: 39099155 DOI: 10.1111/nmo.14884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 06/04/2024] [Accepted: 07/21/2024] [Indexed: 08/06/2024]
Abstract
BACKGROUND Electrical stimulation of the gut has been investigated in recent decades with a view to treating various gastro-intestinal motility disorders including, among others, gastric electrical stimulation to relieve nausea and vomiting associated with gastroparesis and sacral neuromodulation to treat fecal incontinence and/or constipation. Although their symptomatic efficacy has been ascertained by randomized controlled trials, their mechanisms of action are not fully understood. PURPOSE This review summarizes the past year's literature on the mechanisms of action of gut electrical stimulation therapies, including their impact on the gut-brain axis.
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Affiliation(s)
- Charlotte Desprez
- Digestive Physiology Department, Rouen University Hospital, Rouen, France
| | - Anne-Marie Leroi
- Digestive Physiology Department, Rouen University Hospital, Rouen, France
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2
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Dorfman L, Sigal A, El-Chammas K, Mansi S, Kaul A. Sacral nerve stimulation effect on colonic motility in pediatric patients. Saudi J Gastroenterol 2024; 30:236-242. [PMID: 38497411 PMCID: PMC11379250 DOI: 10.4103/sjg.sjg_407_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 02/27/2024] [Indexed: 03/19/2024] Open
Abstract
BACKGROUND Sacral nerve stimulation (SNS) is a minimally invasive surgical procedure used to treat refractory constipation in children. While its efficacy in improving symptoms has been studied, its effect on colonic motor function remains unclear. This case series explores SNS's impact on colonic motor function in pediatric patients with idiopathic constipation, using high-resolution colonic manometry (HRCM). METHODS Four pediatric patients with chronic idiopathic constipation underwent SNS placement for intractable symptoms and were subsequently evaluated via HRCM. Clinical characteristics, comorbidities, treatment regimens, and outcomes were reviewed. HRCM was conducted during the SNS-off and SNS-on phases. The motility index (MI) was measured during the SNS-off (fasting and postprandial) and SNS-on phases. RESULTS Four pediatric patients aged 8 to 21 years met the inclusion criteria. In three patients, SNS-induced high-amplitude propagating contractions (HAPCs) were noted, and in one patient, low-amplitude propagating contractions (LAPCs) were noted. In one patient, propagating contractions were induced only when SNS was turned on. MI changes with SNS-on were variable among different patients with an increase in MI in two patients after turning SNS on and a decrease in the other two compared with baseline. Adverse effects following SNS placement remained minimal across all cases. CONCLUSION This case series is the first to report SNS effects on colonic motility evaluated by HRCM in pediatrics. We demonstrate that propagating colonic contractions are promptly induced when SNS is turned on. Although the initial effects of SNS on colonic motility were observable, additional investigation is necessary to comprehend the fundamental mechanisms and long-term effectiveness of SNS in pediatric patients.
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Affiliation(s)
- Lev Dorfman
- Gastroenterology, Hepatology and Nutrition, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Anat Sigal
- Gastroenterology, Hepatology and Nutrition, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Khalil El-Chammas
- Gastroenterology, Hepatology and Nutrition, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Sherief Mansi
- Gastroenterology, Hepatology and Nutrition, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Ajay Kaul
- Gastroenterology, Hepatology and Nutrition, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
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Heemskerk SC, Dirksen CD, van Kuijk SM, Benninga MA, Baeten CI, Masclee AA, Melenhorst J, Breukink SO. Sacral Neuromodulation Versus Conservative Treatment for Refractory Idiopathic Slow-transit Constipation: The Randomized Clinical No.2-Trial. Ann Surg 2024; 279:746-754. [PMID: 37991178 PMCID: PMC10997180 DOI: 10.1097/sla.0000000000006158] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
OBJECTIVE Assess the effectiveness of sacral neuromodulation (SNM) versus personalized conservative treatment (PCT) in patients with refractory idiopathic slow-transit constipation (STC). BACKGROUND Evidence on SNM for idiopathic STC is conflicting and of suboptimal methodological quality. METHODS The No.2-Trial was a multicenter, open-label, pragmatic, randomized trial performed in 2 Dutch hospitals. Sixty-seven patients with idiopathic STC, a defecation frequency <3 per week and refractory (ie, unresponsive) to maximal conservative (nonoperative) treatment were included. Exclusion criteria included outlet obstruction, rectal prolapse, and previous colon surgery. Patients were randomized (3:2) to SNM (n=41) or PCT (n=26) with randomization minimization between February 21, 2017 and March 12, 2020. In SNM patients, an implantable pulse generator was implanted after a successful 4-week test stimulation. PCT patients received conservative treatment such as laxatives or retrograde colonic irrigation. The primary outcome was treatment success (defined as average defecation frequency ≥3 per week) after 6 months. Secondary outcomes included constipation severity, fatigue, quality of life, and adverse events. Analysis was according to intention-to-treat. RESULTS After 6 months, 22 (53.7%) patients were successfully treated with SNM versus 1 (3.8%) patient with PCT (odds ratio 36.4, 95% CI 3.4-387.5, P =0.003). At 6 months, SNM patients reported lower constipation severity and fatigue scores ( P <0.001) and improved quality of life compared with PCT ( P <0.001). Eight serious adverse events (6 SNM, 2 PCT) and 78 adverse events (68 SNM, 10 PCT) were reported. CONCLUSIONS SNM is a promising surgical treatment option in a homogeneous group of adults and adolescents with refractory idiopathic STC. No.2-Trial registered at ClinicalTrials.gov NCT02961582.
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Affiliation(s)
- Stella C.M. Heemskerk
- Department of Clinical Epidemiology and Medical Technology Assessment, Maastricht University Medical Center+, Maastricht, the Netherlands
- Care and Public Health Research Institute (CAPHRI), Maastricht University, Maastricht, the Netherlands
- School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, Maastricht, the Netherlands
| | - Carmen D. Dirksen
- Department of Clinical Epidemiology and Medical Technology Assessment, Maastricht University Medical Center+, Maastricht, the Netherlands
- Care and Public Health Research Institute (CAPHRI), Maastricht University, Maastricht, the Netherlands
| | - Sander M.J. van Kuijk
- Department of Clinical Epidemiology and Medical Technology Assessment, Maastricht University Medical Center+, Maastricht, the Netherlands
- Care and Public Health Research Institute (CAPHRI), Maastricht University, Maastricht, the Netherlands
| | - Marc A. Benninga
- Department of Pediatric Gastroenterology, Emma Children’s Hospital/Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - Coen I.M. Baeten
- Department of Surgery, Groene Hart Hospital, Gouda, The Netherlands
| | - Ad A.M. Masclee
- School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, Maastricht, the Netherlands
- Division of Hepatology, Maastricht University Medical Center+, Maastricht, The Netherlands
| | - Jarno Melenhorst
- School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, Maastricht, the Netherlands
- Department of Surgery, Maastricht University Medical Center+, Maastricht, The Netherlands
- School for Oncology and Reproduction (GROW), Maastricht University, Maastricht, the Netherlands
| | - Stéphanie O. Breukink
- School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, Maastricht, the Netherlands
- Department of Surgery, Maastricht University Medical Center+, Maastricht, The Netherlands
- School for Oncology and Reproduction (GROW), Maastricht University, Maastricht, the Netherlands
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Velasco-Benitez C, Villamarin E, Mendez M, Linero A, Hungria G, Saps M. Efficacy of transcutaneous posterior tibial nerve stimulation in functional constipation. Eur J Pediatr 2023; 182:1309-1315. [PMID: 36637541 PMCID: PMC9838342 DOI: 10.1007/s00431-022-04798-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 12/07/2022] [Accepted: 12/29/2022] [Indexed: 01/14/2023]
Abstract
Most children with functional constipation (FC) improve with conventional treatments. However, a proportion of children have poor treatment outcomes. Management of intractable FC may include botulinum toxin injections, transanal irrigation, antegrade enemas, colonic resections, and in some cases sacral nerve stimulation (SNS). SNS is surgically placed, not readily available and expensive. Posterior tibial nerve stimulation (PTNS) allows transmission of electronic impulses and retrograde stimulation to the sacral nerve plexus in a portable, simple and non-invasive fashion. To assess the efficacy and safety of transcutaneous PTNS for the treatment of FC in children. Single-center, prospective interventional study. Children 4-14 years with Rome IV diagnosis of FC received ten daily PTNS (30 min/day) sessions. Electrodes placed over skin of ankle. Strength of stimulus was below pain threshold. Outcomes were assessed during treatment and 7 days after. Twenty-three subjects enrolled. Two children excluded (acute gastroenteritis, COVID-19 contact). Twenty completed the study (4-14 years), (8.4 ± 3.2 years, 71.4% female). We found significant improvement in the consistency of bowel movements (BM) (p = 0.005), fecal incontinence (FI) (p = 0.005), abdominal pain presence (p = < 0.001) and intensity (p = 0.005), and a significant for improvement in blood in stools (p = 0.037). There was 86.3% improvement in abdominal pain. 96.7% reported treatment satisfaction. Only one child required rescue therapy. CONCLUSION We found significant improvement in stool consistency, FI, abdominal pain, and hematochezia. This suggests that transcutaneous PTNS could be a promising noninvasive treatment for FC in children. Large studies are needed. WHAT IS KNOWN • Functional constipation is one of the most common disorders in children. • Current management of functional constipation consists of an integrative approach that includes medications, diet and behavioral strategies. WHAT IS NEW • Posterior tibial nerve stimulation is a novel noninvasive and easy to use therapy that can improve stool consistency, fecal incontinence and blood in stools.
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Affiliation(s)
| | - Eder Villamarin
- Universidad del Valle, Calle 13 # 100-00, Cali Valle Del Cauca, Cali, Colombia
| | - Melissa Mendez
- Universidad del Valle, Calle 13 # 100-00, Cali Valle Del Cauca, Cali, Colombia
| | - Alfredo Linero
- Universidad Santiago de Cali, Cl. 5 #No. 62 -00, Cali, Valle del Cauca, Colombia
| | | | - Miguel Saps
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, University of Miami, Mailman Center, 1601 NW 12 AVE, Suite 3005A, Miami, FL, 33136, USA.
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Wang J, Shen Z, Shen B, Jian J, Hannan T, Goosby K, Wang W, Beckel J, de Groat WC, Chermansky C, Tai C. Defecation induced by stimulation of sacral S2 spinal root in cats. Am J Physiol Gastrointest Liver Physiol 2021; 321:G735-G742. [PMID: 34855517 DOI: 10.1152/ajpgi.00269.2021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The aim of this study was to determine whether stimulation of sacral spinal nerve roots can induce defecation in cats. In anesthetized cats, bipolar hook electrodes were placed on the S1-S3 dorsal and/or ventral roots. Stimulus pulses (1-50 Hz, 0.2 ms) were applied to an individual S1-S3 root to induce proximal/distal colon contractions and defecation. Balloon catheters were inserted into the proximal and distal colon to measure contraction pressure. Glass marbles were inserted into the rectum to demonstrate defecation by videotaping the elimination of marbles. Stimulation of the S2 ventral root at 7 Hz induced significantly (P < 0.05) larger contractions (32 ± 9 cmH2O) in both proximal and distal colon than stimulation of the S1 or S3 ventral root. Intermittent (5 times) stimulation (1 min on and 1 min off) of both dorsal and ventral S2 roots at 7 Hz produced reproducible colon contractions without fatigue, whereas continuous stimulation of 5-min duration caused significant fatigue in colon contractions. Stimulation (7 Hz) of both dorsal and ventral S2 roots together successfully induced defecation that eliminated 1 or 2 marbles from the rectum. This study indicates the possibility to develop a novel neuromodulation device to restore defecation function after spinal cord injury using a minimally invasive surgical approach to insert a lead electrode via the sacral foramen to stimulate a sacral spinal root.NEW & NOTEWORTHY This study in cats determined the optimal stimulation parameters and the spinal segment for sacral spinal root stimulation to induce colon contraction. The results have significant implications for design of a novel neuromodulation device to restore defecation function after spinal cord injury (SCI) and for optimizing sacral neuromodulation parameters to treat non-SCI people with chronic constipation.
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Affiliation(s)
- Jicheng Wang
- Department of Urology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Zhijun Shen
- Department of Urology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Bing Shen
- Department of Urology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Jianan Jian
- Department of Urology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Travis Hannan
- Department of Urology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Khari Goosby
- Department of Urology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - William Wang
- Department of Urology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Jonathan Beckel
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - William C de Groat
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | | | - Changfeng Tai
- Department of Urology, University of Pittsburgh, Pittsburgh, Pennsylvania.,Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, Pennsylvania.,Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania
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Barth BB, Travis L, Spencer NJ, Grill WM. Control of colonic motility using electrical stimulation to modulate enteric neural activity. Am J Physiol Gastrointest Liver Physiol 2021; 320:G675-G687. [PMID: 33624530 PMCID: PMC8238160 DOI: 10.1152/ajpgi.00463.2020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 02/11/2021] [Accepted: 02/11/2021] [Indexed: 01/31/2023]
Abstract
Electrical stimulation of the enteric nervous system (ENS) is an attractive approach to modify gastrointestinal transit. Colonic motor complexes (CMCs) occur with a periodic rhythm, but the ability to elicit a premature CMC depends, at least in part, upon the intrinsic refractory properties of the ENS, which are presently unknown. The objectives of this study were to record myoelectric complexes (MCs, the electrical correlates of CMCs) in the smooth muscle and 1) determine the refractory periods of MCs, 2) inform and evaluate closed-loop stimulation to repetitively evoke MCs, and 3) identify stimulation methods to suppress MC propagation. We dissected the colon from male and female C57BL/6 mice, preserving the integrity of intrinsic circuitry while removing the extrinsic nerves, and measured properties of spontaneous and evoked MCs in vitro. Hexamethonium abolished spontaneous and evoked MCs, confirming the necessary involvement of the ENS for electrically evoked MCs. Electrical stimulation reduced the mean interval between evoked and spontaneous CMCs (24.6 ± 3.5 vs. 70.6 ± 15.7 s, P = 0.0002, n = 7). The absolute refractory period was 4.3 s (95% confidence interval (CI) = 2.8-5.7 s, R2 = 0.7315, n = 8). Electrical stimulation applied during fluid distention-evoked MCs led to an arrest of MC propagation, and following stimulation, MC propagation resumed at an increased velocity (n = 9). The timing parameters of electrical stimulation increased the rate of evoked MCs and the duration of entrainment of MCs, and the refractory period provides insight into timing considerations for designing neuromodulation strategies to treat colonic dysmotility.NEW & NOTEWORTHY Maintained physiological distension of the isolated mouse colon induces rhythmic cyclic myoelectric complexes (MCs). MCs evoked repeatedly by closed-loop electrical stimulation entrain MCs more frequently than spontaneously occurring MCs. Electrical stimulation delivered at the onset of a contraction temporarily suppresses the propagation of MC contractions. Controlled electrical stimulation can either evoke MCs or temporarily delay MCs in the isolated mouse colon, depending on timing relative to ongoing activity.
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Affiliation(s)
- Bradley B Barth
- Department of Biomedical Engineering, Duke University, Durham, North Carolina
| | - Lee Travis
- Visceral Neurophysiology Laboratory, College of Medicine and Public Health, Centre for Neuroscience, Flinders University, Adelaide, South Australia, Australia
| | - Nick J Spencer
- Visceral Neurophysiology Laboratory, College of Medicine and Public Health, Centre for Neuroscience, Flinders University, Adelaide, South Australia, Australia
| | - Warren M Grill
- Department of Biomedical Engineering, Duke University, Durham, North Carolina
- Department of Electrical and Computer Engineering, Duke University, Durham, North Carolina
- Department of Neurobiology, Duke University, Durham, North Carolina
- Department of Neurosurgery, Duke University, Durham, North Carolina
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7
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Altomare DF, Picciariello A, Di Ciaula A, Rinaldi M, De Fazio M, Portincasa P. Effects of temporary sacral nerve stimulation on gastrointestinal motility and function in patients with chronic refractory slow-transit constipation. Tech Coloproctol 2021; 25:291-297. [PMID: 33185809 PMCID: PMC7932968 DOI: 10.1007/s10151-020-02367-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 10/23/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND The efficacy of sacral nerve stimulation (SNS) on patients with chronic refractory slow-transit constipation is controversial and its mechanism of action on gastrointestinal motility and transit is not fully understood. The aim of this study was to document the effects of temporary SNS on the gastrointestinal and biliary tract motility and on gastrointestinal transit in patients with refractory slow-transit constipation. METHODS This was a prospective interventional study. Patients with slow-transit chronic constipation, unresponsive to any conservative treatment, were enrolled between January 2013 and December 2018. Patients' quality of life [patient assessment of constipation quality of life (PAC-QOL) questionnaire], constipation scores (Cleveland Clinic Constipation Score) colonic transit time (CTT), orocecal transit time (OCTT), gastric and gallbladder kinetics, together with the assessment of the autonomic nerve function were evaluated before and during temporary SNS. RESULTS 14 patients (12 females, median age 38 years, range 24-42 years) had temporary SNS. The Cleveland Clinic Constipation Score did not change compared to baseline (23 ± 3 vs 21.4; p = 070). The PAC-QOL did not improve significantly during the stimulation period. Gallbladder/stomach motility (half-emptying time) did not change significantly before and after SNS. OCTT was delayed at baseline, as compared to standard internal normal values, and did not change during SNS. CTT did not improve significantly, although in two patients it decreased substantially from 97 to 53 h, and from 100 to 65 h. CONCLUSIONS Temporary SNS did not have any effect on upper/lower gastrointestinal motility and transit in patients with severe constipation.
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Affiliation(s)
- D F Altomare
- Department of Emergency and Organ Transplantation, University "Aldo Moro", Bari, Italy.
- IRCCS Istituto Tumori Giovanni Paolo II, Bari, Italy.
| | - A Picciariello
- Department of Emergency and Organ Transplantation, University "Aldo Moro", Bari, Italy
| | - A Di Ciaula
- Department of Biomedical Sciences and Human Oncology, Clinica Medica "A. Murri", University "Aldo Moro", Bari, Italy
| | - M Rinaldi
- Department of Emergency and Organ Transplantation, University "Aldo Moro", Bari, Italy
| | - M De Fazio
- Department of Emergency and Organ Transplantation, University "Aldo Moro", Bari, Italy
| | - P Portincasa
- Department of Biomedical Sciences and Human Oncology, Clinica Medica "A. Murri", University "Aldo Moro", Bari, Italy.
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Paskaranandavadivel N, Lin AY, Cheng LK, Bissett I, Lowe A, Arkwright J, Mollaee S, Dinning PG, O'Grady G. ManoMap: an automated system for characterization of colonic propagating contractions recorded by high-resolution manometry. Med Biol Eng Comput 2021; 59:417-429. [PMID: 33496911 DOI: 10.1007/s11517-021-02316-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 01/15/2021] [Indexed: 11/30/2022]
Abstract
RATIONALE Colonic high-resolution manometry (cHRM) is an emerging clinical tool for defining colonic function in health and disease. Current analysis methods are conducted manually, thus being inefficient and open to interpretation bias. OBJECTIVE The main objective of the study was to build an automated system to identify propagating contractions and compare the performance to manual marking analysis. METHODS cHRM recordings were performed on 5 healthy subjects, 3 subjects with diarrhea-predominant irritable bowel syndrome, and 3 subjects with slow transit constipation. Two experts manually identified propagating contractions, from five randomly selected 10-min segments from each of the 11 subjects (72 channels per dataset, total duration 550 min). An automated signal processing and detection platform was developed to compare its effectiveness to manually identified propagating contractions. In the algorithm, individual pressure events over a threshold were identified and were then grouped into a propagating contraction. The detection platform allowed user-selectable thresholds, and a range of pressure thresholds was evaluated (2 to 20 mmHg). KEY RESULTS The automated system was found to be reliable and accurate for analyzing cHRM with a threshold of 15 mmHg, resulting in a positive predictive value of 75%. For 5-h cHRM recordings, the automated method takes 22 ± 2 s for analysis, while manual identification would take many hours. CONCLUSIONS An automated framework was developed to filter, detect, quantify, and visualize propagating contractions in cHRM recordings in an efficient manner that is reliable and consistent.
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Affiliation(s)
- Niranchan Paskaranandavadivel
- Auckland Bioengineering Institute, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand.
- Department of Surgery, University of Auckland, Auckland, New Zealand.
| | - Anthony Y Lin
- Department of Surgery, University of Auckland, Auckland, New Zealand
| | - Leo K Cheng
- Auckland Bioengineering Institute, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
- Vanderbilt University, Nashville, TN, USA
| | - Ian Bissett
- Department of Surgery, University of Auckland, Auckland, New Zealand
- Auckland City Hospital, Auckland, New Zealand
| | - Andrew Lowe
- Institute of Biomedical Engineering, Auckland University of Technology, Auckland, New Zealand
| | - John Arkwright
- College of Science and Engineering, Flinders University, Adelaide, Australia
| | - Saeed Mollaee
- Auckland Bioengineering Institute, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | - Phil G Dinning
- Departments of Gastroenterology & Surgery Flinders Medical Centre, Flinders University, Adelaide, Australia
| | - Gregory O'Grady
- Auckland Bioengineering Institute, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
- Department of Surgery, University of Auckland, Auckland, New Zealand
- Auckland City Hospital, Auckland, New Zealand
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9
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Effects of sEA on Slow Transit Constipation through the Microbiota-Gut-Brain Axis in Rats. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:8828846. [PMID: 33414840 PMCID: PMC7755465 DOI: 10.1155/2020/8828846] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 11/17/2020] [Accepted: 12/03/2020] [Indexed: 01/30/2023]
Abstract
To investigate the effect of sacral electroacupuncture (sEA) on the microbiota-gut-brain axis in the treatment of slow transit constipation, this study established a drug-induced model of slow transit constipation in rats and carried out sEA at the Baliao acupoints (BL31-BL34). On the 14th day of the therapeutic period (24 h fecal pellets), the aquaporin 3 (AQP3), 5-hydroxytryptamine (5-HT), and substance P (SP) transcripts from the distal colon and hypothalamus were analyzed. 16S rDNA has been widely used to analyze the diversity of the microbial communities. Therefore, in the present study, changes in the intestinal microbiota were analyzed by 16S rDNA gene sequencing. The results showed that sEA significantly increased the number of fecal pellets and the water content in the feces and reduced the reabsorption of intestinal water in 24 h. sEA also upregulated the level of SP mRNA expression in the distal colon and the hypothalamus, but downregulated the level of 5-HT mRNA expression in the distal colon. Moreover, sEA improved the Bacteroidetes to Firmicutes (B/F) ratio, which is beneficial to the general structure of the intestinal microflora. Our findings suggested that the microbiota-gut-brain axis constitutes a crucial pathological basis in the development of slow transit constipation. sEA improved the slow transit constipation by regulating the balance of the microbiota-gut-brain axis.
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Mohd RR, Heitmann P, Raghu K, Hibbard TJ, Costa M, Wiklendt L, Wattchow DA, Arkwright J, de Fontgalland D, Brookes S, Spencer NJ, Dinning P. Distinct patterns of myogenic motor activity identified in isolated human distal colon with high-resolution manometry. Neurogastroenterol Motil 2020; 32:e13871. [PMID: 32374068 PMCID: PMC7529858 DOI: 10.1111/nmo.13871] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 03/30/2020] [Accepted: 04/13/2020] [Indexed: 12/15/2022]
Abstract
BACKGROUND Colonic high-resolution manometry (HRM) has been used to reveal discrete, propagating colonic motor patterns. To help determine mechanisms underlying these patterns, we used HRM to record contractile activity in human distal colon ex vivo. METHODS Surgically excised segments of descending (n = 30) or sigmoid colon (n = 4) were immersed in oxygenated Krebs solution at 36°C (n = 34; 16 female; 67.6 ± 12.4 years; length: 24.7 ± 3.5 cm). Contractility was recorded by HRM catheters. After 30 minutes of baseline recording, 0.3 mM lidocaine and/or 1 mM hexamethonium were applied. Ascending neural pathways were activated by electrical field stimulation (EFS; 10 Hz, 0.5 ms, 50 V, 5-s duration) applied to the anal end before and after drug application. RESULTS Spontaneous propagating contractions were recorded in all specimens (0.1-1.5 cycles/minute). Most contractions occurred synchronously across all recording sites. In five specimens, rhythmic antegrade contractions propagated across the full length of the preparation. EFS evoked local contractions at the site of stimulation (latency: 5.5 ± 2.4 seconds) with greater amplitude than spontaneous contractions (EFS; 29.3 ± 26.9 vs 12.1 ± 14.8 mm Hg; P = .02). Synchronous or retrograde propagating motor patterns followed EFS; 71% spanned the entire preparation length. Hexamethonium and lidocaine modestly and only temporarily inhibited spontaneous contractions, whereas TTX increased the frequency of contractile activity while inhibiting EFS-evoked contractions. CONCLUSIONS AND INFERENCES Our study suggests that the propagated contractions recorded in the organ bath have a myogenic origin which can be regulated by neural input. Once activated at a local site, the contractions do not require the propulsion of fecal content to sustain long-distance propagation.
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Affiliation(s)
- Rosli R Mohd
- College of Medicine and Public Health & Centre for Neuroscience, Flinders University
| | - P.T Heitmann
- College of Medicine and Public Health & Centre for Neuroscience, Flinders University,Discipline of Surgery and Gastroenterology, Flinders Medical Centre, South Australia
| | - K Raghu
- Discipline of Surgery and Gastroenterology, Flinders Medical Centre, South Australia
| | - T. J. Hibbard
- College of Medicine and Public Health & Centre for Neuroscience, Flinders University
| | - M Costa
- College of Medicine and Public Health & Centre for Neuroscience, Flinders University
| | - L Wiklendt
- College of Medicine and Public Health & Centre for Neuroscience, Flinders University
| | - D. A Wattchow
- College of Medicine and Public Health & Centre for Neuroscience, Flinders University,Discipline of Surgery and Gastroenterology, Flinders Medical Centre, South Australia
| | - J Arkwright
- College of Science and Engineering, Flinders University. Adelaide, Australia
| | - D de Fontgalland
- Discipline of Surgery and Gastroenterology, Flinders Medical Centre, South Australia
| | - S.J.H Brookes
- College of Medicine and Public Health & Centre for Neuroscience, Flinders University
| | - N. J Spencer
- College of Medicine and Public Health & Centre for Neuroscience, Flinders University
| | - P.G Dinning
- College of Medicine and Public Health & Centre for Neuroscience, Flinders University,Discipline of Surgery and Gastroenterology, Flinders Medical Centre, South Australia
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Vriesman MH, Wang L, Park C, Diefenbach KA, Levitt MA, Wood RJ, Alpert SA, Benninga MA, Vaz K, Yacob D, Di Lorenzo C, Lu PL. Comparison of antegrade continence enema treatment and sacral nerve stimulation for children with severe functional constipation and fecal incontinence. Neurogastroenterol Motil 2020; 32:e13809. [PMID: 32017325 PMCID: PMC7507175 DOI: 10.1111/nmo.13809] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 12/12/2019] [Accepted: 01/06/2020] [Indexed: 12/29/2022]
Abstract
BACKGROUND To compare antegrade continence enema (ACE) treatment and sacral nerve stimulation (SNS) in children with intractable functional constipation (FC) and fecal incontinence (FI). METHODS We performed a retrospective review of children 6-18 years old with FC and FI treated with either ACE or SNS at our institution. We recorded symptoms at baseline, 6 months, 12 months, 24 months, and their most recent visit after starting treatment. We compared improvement in FI, bowel movement (BM) frequency, abdominal pain, laxative use, and complications. Patients were contacted to evaluate perceived benefit using the Glasgow Children's Benefit Inventory. KEY RESULTS We included 23 patients treated with ACE (52% female, median age 10 years) and 19 patients treated with SNS (74% female, median age 10 years). Improvement in FI was greater with SNS than ACE at 12 months (92.9% vs 57.1%, P = .03) and 24 months (100% vs 57.1%, P = .02). Improvement in BM frequency was greater with ACE, and children were more likely to discontinue laxatives at all follow-up time points (all P < .05). Improvement in abdominal pain was greater with ACE at the most recent visit (P < .05). Rate of complications requiring surgery was similar between groups (26.3% vs 21.7%). Benefit was reported in 83.3% and 100% of ACE and SNS groups, respectively (NS). CONCLUSIONS AND INFERENCES Although both ACE and SNS can lead to durable improvement in children with FC and FI, SNS appears more effective for FI and ACE more effective in improving BM frequency and abdominal pain and in discontinuation of laxatives.
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Affiliation(s)
- Mana H. Vriesman
- Division of Gastroenterology, Hepatology and NutritionDepartment of PediatricsNationwide Children's HospitalColumbusOHUSA,Department of Pediatric Gastroenterology and NutritionEmma Children's HospitalAmsterdam UMCUniversity of AmsterdamAmsterdamThe Netherlands
| | - Lyon Wang
- Division of Gastroenterology, Hepatology and NutritionDepartment of PediatricsNationwide Children's HospitalColumbusOHUSA,The Ohio State University College of MedicineColumbusOHUSA
| | - Candice Park
- Division of Gastroenterology, Hepatology and NutritionDepartment of PediatricsNationwide Children's HospitalColumbusOHUSA,The Ohio State University College of MedicineColumbusOHUSA
| | | | - Marc A. Levitt
- Department of SurgeryNationwide Children's HospitalColumbusOHUSA
| | - Richard J. Wood
- Department of SurgeryNationwide Children's HospitalColumbusOHUSA
| | - Seth A. Alpert
- Department of UrologyNationwide Children's HospitalColumbusOHUSA
| | - Marc A. Benninga
- Department of Pediatric Gastroenterology and NutritionEmma Children's HospitalAmsterdam UMCUniversity of AmsterdamAmsterdamThe Netherlands
| | - Karla Vaz
- Division of Gastroenterology, Hepatology and NutritionDepartment of PediatricsNationwide Children's HospitalColumbusOHUSA
| | - Desale Yacob
- Division of Gastroenterology, Hepatology and NutritionDepartment of PediatricsNationwide Children's HospitalColumbusOHUSA
| | - Carlo Di Lorenzo
- Division of Gastroenterology, Hepatology and NutritionDepartment of PediatricsNationwide Children's HospitalColumbusOHUSA
| | - Peter L. Lu
- Division of Gastroenterology, Hepatology and NutritionDepartment of PediatricsNationwide Children's HospitalColumbusOHUSA
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12
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Heemskerk SCM, Rotteveel AH, Melenhorst J, Breukink SO, Kimman ML, Dirksen CD. Heterogeneous outcome reporting in adult slow-transit constipation studies: Systematic review towards a core outcome set. J Gastroenterol Hepatol 2020; 35:192-203. [PMID: 31376175 PMCID: PMC7027471 DOI: 10.1111/jgh.14818] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 07/09/2019] [Accepted: 08/01/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND AIM Standardizing evaluative outcomes and their assessment facilitates comparisons between clinical studies and provides a basis for comparing direct effects of different treatment options. The aim of this study was to systematically review types of outcomes and measurement instruments used in studies regarding treatment options for slow-transit constipation (STC) in adults. METHODS In this systematic review of the literature, we searched MEDLINE, Embase, and PsycINFO from inception through February 2018, for papers assessing any STC treatment in adult patients. Outcomes were systematically extracted and categorized in domains using the conceptual framework of the Outcome Measures in Rheumatology filter 2.0. Outcome reporting was stratified by decade of publication, intervention, and study type. RESULTS Forty-seven studies were included in this systematic review. Fifty-nine different types of outcomes were identified. The outcomes were structured in three core areas and 18 domains. The most commonly reported domains were defecation functions (94%), gastrointestinal transit (53%), and health-care service use (51%). The most frequently reported outcomes were defecation frequency (83%), health-related quality of life (43%), and adverse events and complications (43%). In 62% of the studies, no primary outcome was defined, whereas in two studies, more than one primary outcomes were selected. A wide diversity of measurement instruments was used to assess the reported outcomes. CONCLUSION Outcomes reported in studies on STC in adults are heterogeneous. A lack of standardization complicates comparisons between studies. Developing a core outcome set for STC in adults could contribute to standardization of outcome reporting in (future) studies.
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Affiliation(s)
- Stella C M Heemskerk
- Department of Clinical Epidemiology and Medical Technology AssessmentMaastricht University Medical Center+MaastrichtThe Netherlands
- Care and Public Health Research Institute (CAPHRI)Maastricht UniversityMaastrichtThe Netherlands
- School of Nutrition and Translational Research in Metabolism (NUTRIM)Maastricht UniversityMaastrichtThe Netherlands
| | - Adriënne H Rotteveel
- Department of Clinical Epidemiology and Medical Technology AssessmentMaastricht University Medical Center+MaastrichtThe Netherlands
- Care and Public Health Research Institute (CAPHRI)Maastricht UniversityMaastrichtThe Netherlands
- National Institute for Public Health and the EnvironmentBilthovenThe Netherlands
| | - Jarno Melenhorst
- School of Nutrition and Translational Research in Metabolism (NUTRIM)Maastricht UniversityMaastrichtThe Netherlands
- Department of SurgeryMaastricht University Medical Center+MaastrichtThe Netherlands
| | - Stéphanie O Breukink
- School of Nutrition and Translational Research in Metabolism (NUTRIM)Maastricht UniversityMaastrichtThe Netherlands
- Department of SurgeryMaastricht University Medical Center+MaastrichtThe Netherlands
| | - Merel L Kimman
- Department of Clinical Epidemiology and Medical Technology AssessmentMaastricht University Medical Center+MaastrichtThe Netherlands
- Care and Public Health Research Institute (CAPHRI)Maastricht UniversityMaastrichtThe Netherlands
| | - Carmen D Dirksen
- Department of Clinical Epidemiology and Medical Technology AssessmentMaastricht University Medical Center+MaastrichtThe Netherlands
- Care and Public Health Research Institute (CAPHRI)Maastricht UniversityMaastrichtThe Netherlands
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13
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Li YW, Yu YJ, Fei F, Zheng MY, Zhang SW. High-resolution colonic manometry and its clinical application in patients with colonic dysmotility: A review. World J Clin Cases 2019; 7:2675-2686. [PMID: 31616684 PMCID: PMC6789394 DOI: 10.12998/wjcc.v7.i18.2675] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 07/26/2019] [Accepted: 08/20/2019] [Indexed: 02/05/2023] Open
Abstract
The detailed process and mechanism of colonic motility are still unclear, and colonic motility disorders are associated with numerous clinical diseases. Colonic manometry is considered to the most direct means of evaluating colonic peristalsis. Colonic manometry has been studied for more than 30 years; however, the long duration of the examination, high risk of catheterization, huge amount of real-time data, strict catheter sterilization, and high cost of disposable equipment restrict its wide application in clinical practice. Recently, high-resolution colonic manometry (HRCM) has rapidly developed into a major technique for obtaining more effective information involved in the physiology and/or pathophysiology of colonic contractile activity in colonic dysmotility patients. This review focuses on colonic motility, manometry, operation, and motor patterns, and the clinical application of HRCM. Furthermore, the limitations, future directions, and potential usefulness of HRCM in the evaluation of clinical treatment effects are also discussed.
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Affiliation(s)
- Yu-Wei Li
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin 300071, China
| | - Yong-Jun Yu
- Department of Colorectal Surgery, Tianjin Union Medical Center, Tianjin 300071, China
| | - Fei Fei
- Department of Pathology, Tianjin Union Medical Center, Tianjin 300071, China
- Nankai University School of Medicine, Nankai University, Tianjin 300071, China
| | - Min-Ying Zheng
- Department of Pathology, Tianjin Union Medical Center, Tianjin 300071, China
| | - Shi-Wu Zhang
- Department of Pathology, Tianjin Union Medical Center, Tianjin 300071, China
- Nankai University School of Medicine, Nankai University, Tianjin 300071, China
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14
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Cauley CE, Savitt LR, Weinstein M, Wakamatsu MM, Kunitake H, Ricciardi R, Staller K, Bordeianou L. A Quality-of-Life Comparison of Two Fecal Incontinence Phenotypes: Isolated Fecal Incontinence Versus Concurrent Fecal Incontinence With Constipation. Dis Colon Rectum 2019; 62:63-70. [PMID: 30451749 DOI: 10.1097/dcr.0000000000001242] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND Many patients with fecal incontinence report coexisting constipation. This subset of patients has not been well characterized or understood. OBJECTIVE The purpose of this study was to report the frequency of fecal incontinence with concurrent constipation and to compare quality-of-life outcomes of patients with fecal incontinence with and without constipation. DESIGN This was a prospective cohort study. Survey data, including Fecal Incontinence Severity Index, Constipation Severity Instrument, Fecal Incontinence Quality of Life survey (categorized as lifestyle, coping, depression, and embarrassment), Pelvic Organ Prolapse Inventory and Urinary Distress Inventory surveys, and anorectal physiology testing were obtained. SETTINGS The study was conducted as a single-institution study from January 2007 to January 2017. PATIENTS Study patients had fecal incontinence presented to a tertiary pelvic floor center. MAIN OUTCOME MEASURES Quality-of-life survey findings were measured. RESULTS A total of 946 patients with fecal incontinence were identified, and 656 (69.3%) had coexisting constipation. Patients with fecal incontinence with constipation were less likely to report a history of pregnancy (89.2% vs 91.4%; p = 0.001) or complicated delivery, such as requiring instrumentation (9.1% vs 18.1%; p = 0.005), when compared with patients with isolated fecal incontinence. Patients with fecal incontinence with constipation had higher rates of coexisting pelvic organ prolapse (Pelvic Organ Prolapse Inventory: 18.4 vs 8.2; p < 0.01), higher rates of urinary incontinence (Urinary Distress Inventory: 30.2 vs 23.4; p = 0.01), and higher pressure findings on manometry; intussusception on defecography was common. Patients with fecal incontinence with concurrent constipation had less severe incontinence scores at presentation (21.0 vs 23.8; p < 0.001) and yet lower overall health satisfaction (28.9% vs 42.5%; p < 0.001). Quality-of-life scores declined as constipation severity increased for lifestyle, coping, depression, and embarrassment. LIMITATIONS This was a single-institution study, and surgeon preference could bias population and anorectal physiology testing. CONCLUSIONS Patients with fecal incontinence with concurrent constipation represent a different disease phenotype and have different clinical and anorectal physiology test findings and worse overall quality of life. Treatment of these patients requires careful consideration of prolapse pathology with coordinated treatment of coexisting disorders. See Video Abstract at http://links.lww.com/DCR/A783.
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Affiliation(s)
- Christy E Cauley
- Department of Surgery, Massachusetts General Hospital, Boston, Massachusetts
| | - Lieba R Savitt
- Department of Surgery, Massachusetts General Hospital, Boston, Massachusetts
| | - Milena Weinstein
- Department of Gynecology, Massachusetts General Hospital, Boston, Massachusetts
| | - May M Wakamatsu
- Department of Gynecology, Massachusetts General Hospital, Boston, Massachusetts
| | - Hiroko Kunitake
- Department of Surgery, Massachusetts General Hospital, Boston, Massachusetts
| | - Rocco Ricciardi
- Department of Surgery, Massachusetts General Hospital, Boston, Massachusetts
| | - Kyle Staller
- Department of Gastroenterology, Massachusetts General Hospital, Boston, Massachusetts
| | - Liliana Bordeianou
- Department of Surgery, Massachusetts General Hospital, Boston, Massachusetts
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15
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Sacral Nerve Stimulation as a Therapy for Patients With Refractory Voiding and Bowel Dysfunction. Obstet Gynecol 2018; 132:1337-1345. [DOI: 10.1097/aog.0000000000002968] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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16
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Dinning PG. A new understanding of the physiology and pathophysiology of colonic motility? Neurogastroenterol Motil 2018; 30:e13395. [PMID: 29971850 DOI: 10.1111/nmo.13395] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 05/18/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND In recent years, high-resolution manometry has been used in an attempt to gain a greater insight into the physiology/pathophysiology of colonic contractile activity in healthy adults and patients with colonic motility disorders. New colonic motor patterns have been identified and characterized, however, the clinical significance of these findings remains undetermined. PURPOSE This review will assess the current literature on colonic high-resolution manometry and determine if this procedure has advanced our understanding of colonic motility. The limitations, future directions, and the potential of this technique to assess the effects of treatment upon colonic motor patterns will also be discussed.
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Affiliation(s)
- P G Dinning
- The Department of Gastroenterology & Surgery, Flinders Medical Centre & the College of Medicine and Public Health & Centre for Neuroscience, Flinders University, Bedford Park, SA, Australia
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17
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McAlees E, Vollebregt PF, Stevens N, Dudding TC, Emmanuel AV, Furlong PL, Hamdy S, Hooper RL, Jones JFX, Norton C, O'Connell PR, Scott SM, Knowles CH. Efficacy and mechanism of sub-sensory sacral (optimised) neuromodulation in adults with faecal incontinence: study protocol for a randomised controlled trial. Trials 2018; 19:336. [PMID: 29941019 PMCID: PMC6019783 DOI: 10.1186/s13063-018-2689-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 05/16/2018] [Indexed: 12/28/2022] Open
Abstract
Background Faecal incontinence (FI) is a substantial health problem with a prevalence of approximately 8% in community-dwelling populations. Sacral neuromodulation (SNM) is considered the first-line surgical treatment option in adults with FI in whom conservative therapies have failed. The clinical efficacy of SNM has never been rigorously determined in a trial setting and the underlying mechanism of action remains unclear. Methods/design The design encompasses a multicentre, randomised, double-blind crossover trial and cohort follow-up study. Ninety participants will be randomised to one of two groups (SNM/SHAM or SHAM/SNM) in an allocation ratio of 1:1. The main inclusion criteria will be adults aged 18–75 years meeting Rome III and ICI definitions of FI, who have failed non-surgical treatments to the UK standard, who have a minimum of eight FI episodes in a 4-week screening period, and who are clinically suitable for SNM. The primary objective is to estimate the clinical efficacy of sub-sensory SNM vs. SHAM at 32 weeks based on the primary outcome of frequency of FI episodes using a 4-week paper diary, using mixed Poisson regression analysis on the intention-to-treat principle. The study is powered (0.9) to detect a 30% reduction in frequency of FI episodes between sub-sensory SNM and SHAM stimulation over a 32-week crossover period. Secondary objectives include: measurement of established and new clinical outcomes after 1 year of therapy using new (2017 published) optimised therapy (with standardised SNM-lead placement); validation of new electronic outcome measures (events) and a device to record them, and identification of potential biological effects of SNM on underlying anorectal afferent neuronal pathophysiology (hypothesis: SNM leads to increased frequency of perceived transient anal sphincter relaxations; improved conscious sensation of defaecatory urge and cortical/subcortical changes in afferent responses to anorectal electrical stimulation (main techniques: high-resolution anorectal manometry and magnetoencephalography). Discussion This trial will determine clinical effect size for sub-sensory chronic electrical stimulation of the sacral innervation. It will provide experimental evidence of modifiable afferent neurophysiology that may aid future patient selection as well as a basic understanding of the pathophysiology of FI. Trial registration International Standard Randomised Controlled Trial Number: ISRCTN98760715. Registered on 15 September 2017. Electronic supplementary material The online version of this article (10.1186/s13063-018-2689-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Eleanor McAlees
- National Bowel Research Centre, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Paul F Vollebregt
- National Bowel Research Centre, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Natasha Stevens
- National Bowel Research Centre, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Tom C Dudding
- University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | | | | | - Shaheen Hamdy
- University of Manchester and Salford Royal Hospital, Manchester and Salford, UK
| | - Richard L Hooper
- Pragmatic Clinical Trials Unit, Centre for Primary Care and Public Health, Queen Mary University of London, London, UK
| | - James F X Jones
- University College Dublin School of Medicine, Dublin, Ireland
| | | | | | - S Mark Scott
- National Bowel Research Centre, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Charles H Knowles
- National Bowel Research Centre, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK. .,National Bowel Research Centre, 1st Floor Abernethy Building, 2 Newark St, London, E1 2A, UK.
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18
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Mohd Rosli R, Leibbrandt RE, Wiklendt L, Costa M, Wattchow DA, Spencer NJ, Brookes SJ, Omari TI, Dinning PG. Discriminating movements of liquid and gas in the rabbit colon with impedance manometry. Neurogastroenterol Motil 2018; 30:e13263. [PMID: 29235207 DOI: 10.1111/nmo.13263] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 11/14/2017] [Indexed: 02/08/2023]
Abstract
BACKGROUND High-resolution impedance manometry is a technique that is well established in esophageal motility studies for relating motor patterns to bolus flow. The use of this technique in the colon has not been established. METHODS In isolated segments of rabbit proximal colon, we recorded motor patterns and the movement of liquid or gas boluses with a high-resolution impedance manometry catheter. These detected movements were compared to video recorded changes in gut diameter. Using the characteristic shapes of the admittance (inverse of impedance) and pressure signals associated with gas or liquid flow we developed a computational algorithm for the automated detection of these events. KEY RESULTS Propagating contractions detected by video were also recorded by manometry and impedance. Neither pressure nor admittance signals alone could distinguish between liquid and gas transit, however the precise relationship between admittance and pressure signals during bolus flow could. Training our computational algorithm upon these characteristic shapes yielded a detection accuracy of 87.7% when compared to gas or liquid bolus events detected by manual analysis. CONCLUSIONS & INFERENCES Characterizing the relationship between both admittance and pressure recorded with high-resolution impedance manometry can not only help in detecting luminal transit in real time, but also distinguishes between liquid and gaseous content. This technique holds promise for determining the propulsive nature of human colonic motor patterns.
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Affiliation(s)
- R Mohd Rosli
- Department of Gastroenterology & Surgery, Flinders Medical Centre, Bedford Park, South Australia, Australia.,College of Medicine and Public Health & Centre for Neuroscience, Flinders University, Bedford Park, South Australia, Australia
| | - R E Leibbrandt
- College of Medicine and Public Health & Centre for Neuroscience, Flinders University, Bedford Park, South Australia, Australia
| | - L Wiklendt
- College of Medicine and Public Health & Centre for Neuroscience, Flinders University, Bedford Park, South Australia, Australia
| | - M Costa
- College of Medicine and Public Health & Centre for Neuroscience, Flinders University, Bedford Park, South Australia, Australia
| | - D A Wattchow
- Department of Gastroenterology & Surgery, Flinders Medical Centre, Bedford Park, South Australia, Australia.,College of Medicine and Public Health & Centre for Neuroscience, Flinders University, Bedford Park, South Australia, Australia
| | - N J Spencer
- College of Medicine and Public Health & Centre for Neuroscience, Flinders University, Bedford Park, South Australia, Australia
| | - S J Brookes
- College of Medicine and Public Health & Centre for Neuroscience, Flinders University, Bedford Park, South Australia, Australia
| | - T I Omari
- Department of Gastroenterology & Surgery, Flinders Medical Centre, Bedford Park, South Australia, Australia.,College of Medicine and Public Health & Centre for Neuroscience, Flinders University, Bedford Park, South Australia, Australia
| | - P G Dinning
- Department of Gastroenterology & Surgery, Flinders Medical Centre, Bedford Park, South Australia, Australia.,College of Medicine and Public Health & Centre for Neuroscience, Flinders University, Bedford Park, South Australia, Australia
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19
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Janssen PTJ, Meyer YM, Van Kuijk SMJ, Benninga MA, Stassen LPS, Bouvy ND, Melenhorst J, Breukink SO. Long-term outcome of intractable constipation treated by sacral neuromodulation: a comparison between children and adults. Colorectal Dis 2018; 20:134-143. [PMID: 28782277 DOI: 10.1111/codi.13837] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 07/25/2017] [Indexed: 12/18/2022]
Abstract
AIM Sacral neuromodulation (SNM) is a minimally invasive therapy for functional constipation (FC) and is most often used to treat adults. Recent studies suggest that SNM may also beneficial in children. However, comparative data regarding preferred age of SNM for FC are lacking. Therefore, long-term results of SNM for FC were compared between children and adults. METHOD All patients treated with SNM for FC between 2004 and 2015 were evaluated. Outcomes of children (age 10-18 years) were compared with those for adults (≥ 18 years). The primary end-point was a defaecation frequency of three or more times per week, which is consistent with the ROME-III criteria. Secondary outcomes were quality of life (QoL; SF-36) and the Cleveland Clinic Constipation Score. RESULTS One hundred and eighty patients (45 children, 135 adults) were eligible for SNM. The mean age was 15.8 (children) and 41.4 years (adults). One hundred and twenty-six patients received permanent SNM (38 children, 88 adults). Mean follow-up was 47 months in both groups. Defaecation frequency increased in both groups after SNM compared with baseline. Defaecation frequency in adults was higher than in children. The increased defaecation frequency was maintained during the entire follow-up period in both groups. QoL of children was impaired compared with the Dutch population with regard to bodily pain, general health and vitality. Adults had worse QoL with regard to physical functioning, bodily pain, general health, vitality and social functioning compared with the Dutch population. QoL of children did not differ from adults. CONCLUSION Sacral neuromodulation (SNM) should be considered in children (< 18 years) with FC. However, the indication of SNM for FC remains debatable considering the limited improvements and high costs.
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Affiliation(s)
- P T J Janssen
- Department of General Surgery, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Y M Meyer
- Department of General Surgery, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - S M J Van Kuijk
- Department of Clinical Epidemiology and Medical Technology Assessment, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - M A Benninga
- Department of Pediatric Gastroenterology, Emma Children's Hospital/Academic Medical Center, Amsterdam, The Netherlands
| | - L P S Stassen
- Department of General Surgery, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - N D Bouvy
- Department of General Surgery, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - J Melenhorst
- Department of General Surgery, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - S O Breukink
- Department of General Surgery, Maastricht University Medical Centre, Maastricht, The Netherlands
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20
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Heemskerk SCM, Rotteveel AH, Benninga MA, Baeten CIM, Masclee AAM, Melenhorst J, van Kuijk SMJ, Dirksen CD, Breukink SO. Sacral neuromodulation versus personalized conservative treatment in patients with idiopathic slow-transit constipation: study protocol of the No.2-trial, a multicenter open-label randomized controlled trial and cost-effectiveness analysis. Int J Colorectal Dis 2018; 33:493-501. [PMID: 29470731 PMCID: PMC5859034 DOI: 10.1007/s00384-018-2978-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/07/2018] [Indexed: 02/04/2023]
Abstract
PURPOSE The evidence regarding the (cost-)effectiveness of sacral neuromodulation (SNM) in patients with therapy-resistant idiopathic slow-transit constipation is of suboptimal quality. The Dutch Ministry of Health, Welfare and Sports has granted conditional reimbursement for SNM treatment. The objective is to assess the effectiveness, cost-effectiveness, and budget impact of SNM compared to personalized conservative treatment (PCT) in patients with idiopathic slow-transit constipation refractory to conservative treatment. METHODS This study is an open-label, multicenter randomized controlled trial. Patients aged 14 to 80 with slow-transit constipation, a defecation frequency (DF) < 3 per week and meeting at least one other Rome-IV criterion, are eligible. Patients with obstructed outlet, irritable bowel syndrome, bowel pathology, or rectal prolapse are excluded. Patients are randomized to SNM or PCT. The primary outcome is success at 6 months (DF ≥ 3 a week), requiring a sample size of 64 (α = 0.05, β = 0.80, 30% difference in success). Secondary outcomes are straining, sense of incomplete evacuation, constipation severity, fatigue, constipation specific and generic quality of life, and costs at 6 months. Long-term costs and effectiveness will be estimated by a decision analytic model. The time frame is 57 months, starting October 2016. SNM treatment costs are funded by the Dutch conditional reimbursement program, research costs by Medtronic. CONCLUSIONS The results of this trial will be used to make a final decision regarding reimbursement of SNM from the Dutch Health Care Package in this patient group. TRIAL REGISTRATION This trial is registered at clinicaltrials.gov , identifier NCT02961582, on 12 October 2016.
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Affiliation(s)
- S. C. M. Heemskerk
- Department of Clinical Epidemiology and Medical Technology Assessment, Maastricht University Medical Center+, P. Debyelaan 25, 6202 AZ Maastricht, the Netherlands ,Care and Public Health Research Institute (CAPHRI), Maastricht University, Universiteitssingel 40, 6229 ER Maastricht, the Netherlands ,School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, Universiteitssingel 40, 6229 ER Maastricht, the Netherlands
| | - A. H. Rotteveel
- Department of Clinical Epidemiology and Medical Technology Assessment, Maastricht University Medical Center+, P. Debyelaan 25, 6202 AZ Maastricht, the Netherlands ,Care and Public Health Research Institute (CAPHRI), Maastricht University, Universiteitssingel 40, 6229 ER Maastricht, the Netherlands ,National Institute for Public Health and the Environment, Antonie van Leeuwenhoeklaan 9, 3721 MA Bilthoven, the Netherlands
| | - M. A. Benninga
- Department of Pediatric Gastroenterology, Emma Children’s Hospital/Academic Medical Center, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands
| | - C. I. M. Baeten
- Department of Surgery, Groene Hart Hospital, Bleulandweg 10, 2803 HH Gouda, the Netherlands
| | - A. A. M. Masclee
- School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, Universiteitssingel 40, 6229 ER Maastricht, the Netherlands ,Division of Hepatology, Maastricht University Medical Center+, P. Debyelaan 25, 6202 AZ Maastricht, the Netherlands
| | - J. Melenhorst
- School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, Universiteitssingel 40, 6229 ER Maastricht, the Netherlands ,Department of Surgery, Maastricht University Medical Center+, P. Debyelaan 25, 6202 AZ Maastricht, the Netherlands
| | - S. M. J. van Kuijk
- Department of Clinical Epidemiology and Medical Technology Assessment, Maastricht University Medical Center+, P. Debyelaan 25, 6202 AZ Maastricht, the Netherlands ,Care and Public Health Research Institute (CAPHRI), Maastricht University, Universiteitssingel 40, 6229 ER Maastricht, the Netherlands
| | - C. D. Dirksen
- Department of Clinical Epidemiology and Medical Technology Assessment, Maastricht University Medical Center+, P. Debyelaan 25, 6202 AZ Maastricht, the Netherlands ,Care and Public Health Research Institute (CAPHRI), Maastricht University, Universiteitssingel 40, 6229 ER Maastricht, the Netherlands
| | - S. O. Breukink
- School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University, Universiteitssingel 40, 6229 ER Maastricht, the Netherlands ,Department of Surgery, Maastricht University Medical Center+, P. Debyelaan 25, 6202 AZ Maastricht, the Netherlands
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Bharucha AE, Rao SSC, Shin AS. Surgical Interventions and the Use of Device-Aided Therapy for the Treatment of Fecal Incontinence and Defecatory Disorders. Clin Gastroenterol Hepatol 2017; 15:1844-1854. [PMID: 28838787 PMCID: PMC5693715 DOI: 10.1016/j.cgh.2017.08.023] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 08/07/2017] [Accepted: 08/17/2017] [Indexed: 12/13/2022]
Abstract
The purpose of this clinical practice update expert review is to describe the key principles in the use of surgical interventions and device-aided therapy for managing fecal incontinence (FI) and defecatory disorders. The best practices outlined in this review are based on relevant publications, including systematic reviews and expert opinion (when applicable). Best Practice Advice 1: A stepwise approach should be followed for management of FI. Conservative therapies (diet, fluids, techniques to improve evacuation, a bowel training program, management of diarrhea and constipation with diet and medications if necessary) will benefit approximately 25% of patients and should be tried first. Best Practice Advice 2: Pelvic floor retraining with biofeedback therapy is recommended for patients with FI who do not respond to the conservative measures indicated above. Best Practice Advice 3: Perianal bulking agents such as intra-anal injection of dextranomer may be considered when conservative measures and biofeedback therapy fail. Best Practice Advice 4: Sacral nerve stimulation should be considered for patients with moderate or severe FI in whom symptoms have not responded after a 3-month or longer trial of conservative measures and biofeedback therapy and who do not have contraindications to these procedures. Best Practice Advice 5: Until further evidence is available, percutaneous tibial nerve stimulation should not be used for managing FI in clinical practice. Best Practice Advice 6: Barrier devices should be offered to patients who have failed conservative or surgical therapy, or in those who have failed conservative therapy who do not want or are not eligible for more invasive interventions. Best Practice Advice 7: Anal sphincter repair (sphincteroplasty) should be considered in postpartum women with FI and in patients with recent sphincter injuries. In patients who present later with symptoms of FI unresponsive to conservative and biofeedback therapy and evidence of sphincter damage, sphincteroplasty may be considered when perianal bulking injection and sacral nerve stimulation are not available or have proven unsuccessful. Best Practice Advice 8: The artificial anal sphincter, dynamic graciloplasty, may be considered for patients with medically refractory severe FI who have failed treatment or are not candidates for barrier devices, sacral nerve stimulation, perianal bulking injection, sphincteroplasty and a colostomy. Best Practice Advice 9: Major anatomic defects (eg, rectovaginal fistula, full-thickness rectal prolapse, fistula in ano, or cloaca-like deformity) should be rectified with surgery. Best Practice Advice 10: A colostomy should be considered in patients with severe FI who have failed conservative treatment and have failed or are not candidates for barrier devices, minimally invasive surgical interventions, and sphincteroplasty. Best Practice Advice 11: A magnetic anal sphincter device may be considered for patients with medically refractory severe FI who have failed or are not candidates for barrier devices, perianal bulking injection, sacral nerve stimulation, sphincteroplasty, or a colostomy. Data regarding efficacy are limited and 40% of patients had moderate or severe complications. Best Practice Advice 12: For defecatory disorders, biofeedback therapy is the treatment of choice. Best Practice Advice 13: Based on limited evidence, sacral nerve stimulation should not be used for managing defecatory disorders in clinical practice. Best Practice Advice 14: Anterograde colonic enemas are not effective in the long term for management of defecatory disorders. Best Practice Advice 15: The stapled transanal rectal resection and related procedures should not be routinely performed for correction of structural abnormalities in patients with defecatory disorders.
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Affiliation(s)
- Adil E Bharucha
- Clinical Enteric Neuroscience Translational and Epidemiological Research Program, Division of Gastroenterology and Hepatology, Mayo Clinic and Mayo Foundation, Rochester, Minnesota
| | - Satish S C Rao
- Division of Gastroenterology/Hepatology, Department of Internal Medicine, Medical College of Georgia, Augusta University, Augusta, Georgia
| | - Andrea S Shin
- Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indianapolis, Indiana.
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Martellucci J. Sacral nerve stimulation for constipation: history of an unconsummated marriage. Tech Coloproctol 2017; 21:257-258. [PMID: 28470364 DOI: 10.1007/s10151-017-1619-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 04/06/2017] [Indexed: 11/26/2022]
Affiliation(s)
- J Martellucci
- General, Emergency and Mininvasive Surgery, Careggi University Hospital, Largo Brambilla 3, 50134, Florence, Italy.
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Maeda Y, Kamm MA, Vaizey CJ, Matzel KE, Johansson C, Rosen H, Baeten CG, Laurberg S. Long-term outcome of sacral neuromodulation for chronic refractory constipation. Tech Coloproctol 2017; 21:277-286. [PMID: 28429130 PMCID: PMC5423992 DOI: 10.1007/s10151-017-1613-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Accepted: 01/30/2017] [Indexed: 12/22/2022]
Abstract
Purpose Sacral neuromodulation has been reported as a treatment for severe idiopathic constipation. This study aimed to evaluate the long-term effects of sacral neuromodulation by following patients who participated in a prospective, open-label, multicentre study up to 5 years. Methods Patients were followed up at 1, 3, 6, 12, 24, 36, 48 and 60 months. Symptoms and quality of life were assessed using bowel diary, the Cleveland Clinic constipation score and the Short Form-36 quality-of-life scale. Results Sixty-two patients (7 male, median age 40 years) underwent test stimulation, and 45 proceeded to permanent implantation. Twenty-seven patients exited the study (7 withdrawn consent, 7 loss of efficacy, 6 site-specific reasons, 4 withdrew other reasons, 2 lost to follow-up, 1 prior to follow-up). Eighteen patients (29%) attended 60-month follow-up. In 10 patients who submitted bowel diary, their improvement of symptoms was sustained: the number of defecations per week (4.1 ± 3.7 vs 8.1 ± 3.4, mean ± standard deviation, p < 0.001, baseline vs 60 months) and sensation of incomplete emptying (0.8 ± 0.3 vs 0.2 ± 0.1, p = 0.002). In 14 patients (23%) with Cleveland Clinic constipation score, improvement was sustained at 60 months [17.9 ± 4.4 (baseline) to 10.4 ± 4.1, p < 0.001]. Some 103 device-related adverse events were reported in 27 (61%). Conclusion Benefit from sacral neuromodulation in the long-term was observed in a small minority of patients with intractable constipation. The results should be interpreted with caution given the high dropout and complication rate during the follow-up period.
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Affiliation(s)
- Yasuko Maeda
- Sir Alan Parks Physiology Unit, St. Mark's Hospital, Harrow, UK. .,Imperial College, London, UK.
| | - Michael A Kamm
- Imperial College, London, UK.,Department of Gastroenterology, St. Vincent Hospital Melbourne, Melbourne, Australia.,University of Melbourne, Melbourne, Australia
| | - Carolynne J Vaizey
- Sir Alan Parks Physiology Unit, St. Mark's Hospital, Harrow, UK.,Imperial College, London, UK
| | - Klaus E Matzel
- Chirurgische Klinik mit Poliklinik der Friedrich Alexander, Universität Erlangen/Nürnberg, Erlangen, Germany
| | | | | | - Cornelius G Baeten
- Department of Surgery, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Søren Laurberg
- Department of Surgery P, Aarhus University Hospital, Aarhus, Denmark
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Sreepati G, James-Stevenson T. Use of Sacral Nerve Stimulation for the Treatment of Overlapping Constipation and Fecal Incontinence. AMERICAN JOURNAL OF CASE REPORTS 2017; 18:230-233. [PMID: 28265107 PMCID: PMC5358841 DOI: 10.12659/ajcr.901821] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Patient: Female, 51 Final Diagnosis: Fecal incontinence Symptoms: Constipation • fecal incontinence Medication: — Clinical Procedure: Sacral nerve stimulator Specialty: Gastroenterology and Hepatology
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Affiliation(s)
- Gouri Sreepati
- Department of Digestive and Liver Disorders, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Toyia James-Stevenson
- Department of Digestive and Liver Disorders, Indiana University School of Medicine, Indianapolis, IN, USA
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Jones J, Van de Putte D, De Ridder D, Knowles C, O'Connell R, Nelson D, Goessaert AS, Everaert K. A Joint Mechanism of Action for Sacral Neuromodulation for Bladder and Bowel Dysfunction? Urology 2016; 97:13-19. [DOI: 10.1016/j.urology.2016.05.032] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Revised: 04/15/2016] [Accepted: 05/01/2016] [Indexed: 12/27/2022]
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Zerbib F, Siproudhis L, Lehur PA, Germain C, Mion F, Leroi AM, Coffin B, Le Sidaner A, Vitton V, Bouyssou-Cellier C, Chene G, Zerbib F, Simon M, Denost Q, Lepicard P, Lehur PA, Meurette G, Wyart V, Kubis C, Mion F, Roman S, Damon H, Barth X, Leroi AM, Bridoux V, Gourcerol G, Coffin B, Castel B, Gorbatchef C, Le Sidaner A, Mathonnet M, Vitton V, Lesavre N, Orsoni P, Siproudhis L, Brochard C, Desfourneaux V. Randomized clinical trial of sacral nerve stimulation for refractory constipation. Br J Surg 2016; 104:205-213. [DOI: 10.1002/bjs.10326] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 05/03/2016] [Accepted: 08/23/2016] [Indexed: 12/17/2022]
Abstract
Abstract
Background
Open studies have reported favourable results for sacral nerve stimulation in the treatment of refractory constipation. Here, its efficacy was assessed in a double-blind crossover RCT.
Methods
Patients with at least two of the following criteria were included: fewer than three bowel movements per week; straining to evacuate on more than 25 per cent of attempts; or sensation of incomplete evacuation on more than 25 per cent of occasions. Response to therapy was defined as at least three bowel movements per week and/or more than 50 per cent improvement in symptoms. Responders to an initial 3-week peripheral nerve evaluation were offered permanent implantation of a pulse generator and were assigned randomly in a crossover design to two 8-week intervals of active or sham stimulation. At the end of the two trial periods, the patients received active stimulation until the final evaluation at 1 year.
Results
Thirty-six patients (34 women; mean(s.d.) age 45(14) years) underwent peripheral nerve evaluation. Twenty responded and received a permanent stimulator. A positive response was observed in 12 of 20 and 11 of 20 patients after active and sham stimulation periods respectively (P = 0·746). Pain related to the device occurred in five patients and wound infection or haematoma in three, leading to definitive removal of the pulse generator in two patients. At 1 year, 11 of the 20 patients with an implanted device continued to respond. Stimulation had no significant effect on colonic transit time.
Conclusion
These results do not support the recommendation of permanent implantation of a pulse generator in patients with refractory constipation who initially responded to temporary nerve stimulation. Registration number: NCT01629303 (http://www.clinicaltrials.gov).
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Affiliation(s)
- F Zerbib
- Department of Gastroenterology, Bordeaux University Hospital, and Université de Bordeaux and Institut National de la Santé et de la Recherche Médicale (INSERM) CIC 1401, Bordeaux, France
| | - L Siproudhis
- Department of Gastroenterology, Rennes University Hospital, and Université de Rennes, Rennes, France
| | - P-A Lehur
- Institut des Maladies de l'Appareil Digestif, Nantes University Hospital, Nantes, France
| | - C Germain
- Clinical Epidemiology Unit, and Bordeaux University Hospital and INSERM CIC 1401-EC, Bordeaux, France
| | - F Mion
- Department of Digestive Physiology, Lyon University Hospital, and Université Claude Bernard, Lyon, France
| | - A-M Leroi
- Department of Digestive and Urinary Physiology, Rouen University Hospital, and Université de Rouen, Rouen, France
| | - B Coffin
- Department of Gastroenterology, Louis Mourier University Hospital, Assistance Publique – Hôpitaux de Paris, Colombes, and Université Denis Diderot Paris 7, Paris, France
| | - A Le Sidaner
- Department of Gastroenterology, Limoges University Hospital, Limoges, France
| | - V Vitton
- Department of Gastroenterology, Hôpital Nord, Assistance Publique – Hôpitaux de Marseille, and Plateforme d'Interface Clinique, CRN2M, Unité Mixte de Recherche 7286, and Aix Marseille Université, Marseille, France
| | - C Bouyssou-Cellier
- Department of Gastroenterology, Bordeaux University Hospital, and Université de Bordeaux and Institut National de la Santé et de la Recherche Médicale (INSERM) CIC 1401, Bordeaux, France
| | - G Chene
- Clinical Epidemiology Unit, and Bordeaux University Hospital and INSERM CIC 1401-EC, Bordeaux, France
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Abstract
BACKGROUND Sacral nerve stimulation is proposed as a treatment for slow-transit constipation. However, in our randomized controlled trial we found no therapeutic benefit over sham stimulation. These patients have now been followed-up over a long-term period. OBJECTIVE The purpose of this study was to assess the long-term efficacy of sacral nerve stimulation in patients with scintigraphically confirmed slow-transit constipation. DESIGN This study was designed for long-term follow-up of patients after completion of a randomized controlled trial. SETTINGS It was conducted at an academic tertiary public hospital in Sydney. PATIENTS Adults with slow-transit constipation were included. MAIN OUTCOME MEASURES At the 1- and 2-year postrandomized controlled trial, the primary treatment outcome measure was the proportion of patients who reported a feeling of complete evacuation on >2 days per week for ≥2 of 3 weeks during stool diary assessment. Secondary outcome was demonstration of improved colonic transit at 1 year. RESULTS Fifty-three patients entered long-term follow-up, and 1 patient died. Patient dissatisfaction or serious adverse events resulted in 44 patients withdrawing from the study because of treatment failure by the end of the second year. At 1 and 2 years, 10 (OR = 18.8% (95% CI, 8.3% to 29.3%)) and 3 patients (OR = 5.7% (95% CI, -0.5% to 11.9%)) met the primary outcome measure. Colonic isotope retention at 72 hours did not differ between baseline (OR = 75.6% (95% CI, 65.7%-85.6%)) and 1-year follow-up (OR = 61.7% (95% CI, 47.8%-75.6%)). LIMITATIONS This study only assessed patients with slow-transit constipation. CONCLUSIONS In these patients with slow-transit constipation, sacral nerve stimulation was not an effective treatment.
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Spencer NJ, Dinning PG, Brookes SJ, Costa M. Insights into the mechanisms underlying colonic motor patterns. J Physiol 2016; 594:4099-116. [PMID: 26990133 PMCID: PMC4967752 DOI: 10.1113/jp271919] [Citation(s) in RCA: 102] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Accepted: 02/26/2016] [Indexed: 12/28/2022] Open
Abstract
In recent years there have been significant technical and methodological advances in our ability to record the movements of the gastrointestinal tract. This has led to significant changes in our understanding of the different types of motor patterns that exist in the gastrointestinal tract (particularly the large intestine) and in our understanding of the mechanisms underlying their generation. Compared with other tubular smooth muscle organs, a rich variety of motor patterns occurs in the large intestine. This reflects a relatively autonomous nervous system in the gut wall, which has its own unique population of sensory neurons. Although the enteric nervous system can function independently of central neural inputs, under physiological conditions bowel motility is influenced by the CNS: if spinal pathways are disrupted, deficits in motility occur. The combination of high resolution manometry and video imaging has improved our knowledge of the range of motor patterns and provided some insight into the neural and mechanical factors underlying propulsion of contents. The neural circuits responsible for the generation of peristalsis and colonic migrating motor complexes have now been identified to lie within the myenteric plexus and do not require inputs from the mucosa or submucosal ganglia for their generation, but can be modified by their activity. This review will discuss the recent advances in our understanding of the different patterns of propagating motor activity in the large intestine of mammals and how latest technologies have led to major changes in our understanding of the mechanisms underlying their generation.
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Affiliation(s)
- Nick J Spencer
- Department of Human Physiology and Centre for Neuroscience, Flinders University of South Australia, Adelaide, Australia
| | - Phil G Dinning
- Department of Human Physiology and Centre for Neuroscience, Flinders University of South Australia, Adelaide, Australia
- Departments of Gastroenterology and Surgery, Flinders Medical Centre, Adelaide, Australia
| | - Simon J Brookes
- Department of Human Physiology and Centre for Neuroscience, Flinders University of South Australia, Adelaide, Australia
| | - Marcello Costa
- Department of Human Physiology and Centre for Neuroscience, Flinders University of South Australia, Adelaide, Australia
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Baron M, Grynberg L, Delcourt C, Cornu J, Grise P. La neuromodulation sacrée urinaire a-t-elle un effet sur les troubles digestifs autre que l’incontinence fécale : revue de la littérature. Prog Urol 2016; 26:395-400. [DOI: 10.1016/j.purol.2016.01.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Revised: 01/11/2016] [Accepted: 01/15/2016] [Indexed: 12/13/2022]
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Abstract
BACKGROUND Transcutaneous sacral nerve stimulation is reported to improve symptoms of fecal incontinence. Chronic constipation may also respond to stimulation, but this is poorly reported in the literature. OBJECTIVE The study assessed the efficacy of transcutaneous electrical stimulation directly over the sacral nerve roots in chronic constipation. PATIENTS Chronic functional constipation was established in all patients using the Rome III criteria. SETTING The therapy was self-administered at home. DESIGN/INTERVENTION A pilot study was conducted of transcutaneous sacral stimulation given over a 4-week period for 12 hours a day. MAIN OUTCOME MEASURES Patients were assessed using the Patient Assessment of Constipation Symptoms, the Patient Assessment of Constipation Quality of Life, and the Cleveland constipation tool. A Global Rating of Change measure and a 1-week bowel diary was kept for the final week and compared with baseline. RESULTS Of the 20 patients recruited (16 female, median age 38.5 years), 80% (16) completed the trial. Five (31%) patients reported at least a point reduction in the Patient Assessment of Constipation Symptoms score, 4 (25%) deteriorated, and 7 (44%) improved by less than one point. Median (interquartile range) Patient Assessment of Constipation Symptoms scores were 2.33 (2.34) at baseline and 2.08 (2.58) at follow-up (p = 0.074). Median scores for the Patient Assessment of Constipation Quality of Life and Cleveland systems were 3.00 (1.64) and 17.15 (18) at baseline and 2.22 (3.04) and 15.31 (12) at follow-up (p = 0.096 and 0.111). One-third of patients reported a positive Global Rating of Change measure, although 68% required concurrent laxatives during the trial. LIMITATIONS This is a pilot study and is limited by its small sample size. CONCLUSIONS Continuous transcutaneous sacral stimulation in the short term appears to be ineffective for chronic constipation. Larger well-powered studies with intermittent stimulation regimens are required to investigate this further.
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Iqbal F, Collins B, Thomas GP, Askari A, Tan E, Nicholls RJ, Vaizey CJ. Bilateral transcutaneous tibial nerve stimulation for chronic constipation. Colorectal Dis 2016; 18:173-8. [PMID: 26333152 DOI: 10.1111/codi.13105] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Accepted: 07/03/2015] [Indexed: 02/08/2023]
Abstract
AIM Chronic constipation is difficult to treat when symptoms are intractable. Colonic propulsion may be altered by distal neuromodulation but this is conventionally delivered percutaneously. Transcutaneous tibial nerve stimulation is noninvasive and cheap: this study aimed to assess its efficacy in chronic constipation. METHOD Eighteen patients (median age 46 years, 12 female) with chronic constipation were recruited consecutively. Conservative and behavioural therapy had failed to improve symptoms in all 18. Thirty minutes of daily bilateral transcutaneous tibial nerve stimulation was administered by each patient at home for 6 weeks. The primary outcome measure was a change in the Patient Assessment of Constipation Quality of Life (PAC-QoL) score. Change in Patient Assessment of Constipation Symptoms (PAC-SYM), weekly bowel frequency and visual analogue scale (VAS) score were also measured. RESULTS Fifteen patients (12 female) completed the trial. The PAC-QoL score improved significantly with treatment [pretreatment, median 2.95, interquartile range (IQR) 1.18; posttreatment, median 2.50, IQR 0.70; P = 0.047]. There was no change in PAC-SYM score (pretreatment, median 2.36, IQR 1.59; posttreatment, median 2.08, IQR 0.92; P = 0.53). Weekly stool frequency improved as did VAS score, but these did not reach statistical significance (P = 0.229 and 0.161). The PAC-QoL and PAC-SYM scores both improved in four (26%) patients. Two patients reported complete cure. There were no adverse events reported. CONCLUSION Bilateral transcutaneous tibial nerve stimulation appears to be effective in a quarter of patients with chronic constipation. Carefully selected patients with less severe disease may benefit more. This requires further study.
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Affiliation(s)
- F Iqbal
- Sir Alan Parks' Department of Physiology, St Mark's Hospital and Academic Institute, Harrow, UK
| | - B Collins
- Sir Alan Parks' Department of Physiology, St Mark's Hospital and Academic Institute, Harrow, UK
| | - G P Thomas
- Sir Alan Parks' Department of Physiology, St Mark's Hospital and Academic Institute, Harrow, UK
| | - A Askari
- Sir Alan Parks' Department of Physiology, St Mark's Hospital and Academic Institute, Harrow, UK
| | - E Tan
- Department of Surgery and Cancer, Chelsea and Westminster Hospital, London, UK
| | - R J Nicholls
- Sir Alan Parks' Department of Physiology, St Mark's Hospital and Academic Institute, Harrow, UK
| | - C J Vaizey
- Sir Alan Parks' Department of Physiology, St Mark's Hospital and Academic Institute, Harrow, UK
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Dinning PG, Carrington EV, Scott SM. The use of colonic and anorectal high-resolution manometry and its place in clinical work and in research. Neurogastroenterol Motil 2015. [PMID: 26224550 DOI: 10.1111/nmo.12632] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND In the esophagus, high-resolution manometry (HRM) has become a standard diagnostic tool in the investigation of suspected motility disorders. However, at the opposite end of the digestive tract (i.e., the colon and anorectum), the use of HRM still remains in its infancy, with relatively few published studies in the scientific literature. Further, the clinical utility of those studies that have been performed is largely undetermined. PURPOSE This review assesses all of the HRM studies published to date from both the colon and anorectum, explores the catheter types used, and attempts to determine the worth of HRM over traditional 'low-resolution' recordings from the same regions. Ultimately, this review addresses whether HRM currently provides information that will benefit patient diagnosis and treatment.
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Affiliation(s)
- P G Dinning
- Department of Surgery and Gastroenterology, Flinders Medical Centre, Flinders University, Adelaide, SA, Australia
| | - E V Carrington
- National Centre for Bowel Research and Surgical Innovation and the GI Physiology Unit, Queen Mary University of London, London, UK
| | - S M Scott
- National Centre for Bowel Research and Surgical Innovation and the GI Physiology Unit, Queen Mary University of London, London, UK
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Yu S, Deng JZ, Peng X, Zhou YH, Cheng LQ, Lin YB, Zhu JC, Luo TD. Comparison of laparoscopic subtotal colectomy with posterior vaginal suspension and laparoscopic subtotal colectomy with transvaginal repair for patients with slow-transit constipation complicated with rectocele: a non-randomized comparative study in a single center. Surg Endosc 2015; 30:2759-65. [PMID: 26487219 DOI: 10.1007/s00464-015-4547-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2014] [Accepted: 09/01/2015] [Indexed: 12/29/2022]
Abstract
BACKGROUND Slow-transit constipation complicated with rectocele is a mixed constipation difficult to treat by surgery. Different hospitals and surgeons may employ different surgical procedures. The present study aims to compare the efficacy of laparoscopic subtotal colectomy (LSC) with posterior vaginal suspension and LSC with transvaginal repair for patients having refractory slow-transit constipation complicated with rectocele. METHODS This paper is a retrospective study of 64 patients having refractory slow-transit constipation complicated with rectocele. Admitted from January 2002 to December 2012, the 64 patients were non-randomly divided into two groups: patients who underwent LSC with posterior vaginal suspension (Group A, 36 patients) and patients who underwent LSC with transvaginal repair (Group B, 28 patients). RESULTS There was no statistically significant difference (P > 0.05) in preoperative general characteristics and Wexner constipation score between Group A and Group B. There was no statistically significant difference (P > 0.05) in operative time and intraoperative blood loss between the two groups. One month after the surgery, there was no statistically significant difference (P > 0.05) in early postoperative complications, constipation recurrence rate, degree of improvement in constipation symptoms, and Wexner constipation score between the two groups. But 1-year follow-up results show that there was statistically significant difference (P < 0.05) in constipation recurrence rate, gastrointestinal quality of life index, the degree of improvement in constipation symptoms, and Wexner constipation score between the two groups. CONCLUSION Compared with the LSC with transvaginal repair, the LSC with posterior vaginal suspension demonstrated better efficacy in treating refractory slow-transit constipation complicated with rectocele.
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Affiliation(s)
- Si Yu
- Department of Gastrointestinal Surgery, The First People's Hospital of Foshan, Foshan, 528000, China
| | - Jian-Zhong Deng
- Department of Gastrointestinal Surgery, The First People's Hospital of Foshan, Foshan, 528000, China
| | - Xiang Peng
- Department of Gastrointestinal Surgery, The First People's Hospital of Foshan, Foshan, 528000, China.
| | - Yong-Hui Zhou
- Department of Gastrointestinal Surgery, The First People's Hospital of Foshan, Foshan, 528000, China
| | - Long-Qing Cheng
- Department of Gastrointestinal Surgery, The First People's Hospital of Foshan, Foshan, 528000, China
| | - Yi-Ban Lin
- Department of Gastrointestinal Surgery, The First People's Hospital of Foshan, Foshan, 528000, China
| | - Jia-Cheng Zhu
- Department of Gastrointestinal Surgery, The First People's Hospital of Foshan, Foshan, 528000, China
| | - Te-Dong Luo
- Department of Gastrointestinal Surgery, The First People's Hospital of Foshan, Foshan, 528000, China
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Thaha MA, Abukar AA, Thin NN, Ramsanahie A, Knowles CH. Sacral nerve stimulation for faecal incontinence and constipation in adults. Cochrane Database Syst Rev 2015; 2015:CD004464. [PMID: 26299888 PMCID: PMC9208727 DOI: 10.1002/14651858.cd004464.pub3] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Faecal incontinence (FI) and constipation are both socially-embarrassing and physically-disabling conditions that impair quality of life. For both, surgery may be required in a minority of people when more conservative measures fail. However, the invasiveness and irreversible nature of direct surgery on bowel and sphincter muscles, poor long-term outcomes and well-established compIications makes such procedures unappealing for these benign conditions. A less-invasive surgical option to treat faecal incontinence and constipation is direct, low-voltage stimulation of the sacral nerve roots, termed sacral nerve stimulation (SNS). SNS has become the first line surgical treatment for FI in people failing conservative therapies. Its value in the treatment of constipation is less clear. OBJECTIVES To assess the effects of sacral nerve stimulation using implanted electrodes for the treatment of faecal incontinence and constipation in adults. SEARCH METHODS We searched the Cochrane Incontinence Group Specialised Register, which contains trials identified from the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, MEDLINE In-Process, ClinicalTrials.gov, the World Health Organization (WHO) ICTRP and handsearched journals and conference proceedings (searched 5 February 2015), EMBASE (1 January 1947 to 2015 Week 5), and the reference lists of retrieved relevant articles. SELECTION CRITERIA All randomised or quasi-randomised trials assessing the effects of SNS for faecal incontinence or constipation in adults. DATA COLLECTION AND ANALYSIS Two review authors independently screened the search results, assessed the methodological quality of the included trials, and undertook data extraction. MAIN RESULTS Six crossover trials and two parallel group trials were included.Six trials assessed the effects of SNS for FI. In the parallel group trial conducted by Tjandra, 53 participants with severe FI in the SNS group experienced fewer episodes of faecal incontinence compared to the control group who received optimal medical therapy (mean difference (MD) -5.20, 95% confidence interval (CI) -9.15 to -1.25 at 3 months; MD -6.30, 95% CI -10.34 to -2.26 at 12 months). Adverse events were reported in a proportion of participants: pain at implant site (6%), seroma (2%) and excessive tingling in the vaginal region (9%).In the parallel group trial carried out by Thin, 15 participants with FI in the SNS group experienced fewer episodes of FI compared with the percutaneous tibial nerve stimulation (PTNS) group (MD -3.00, 95% CI -6.61 to 0.61 at 3 months; MD -3.20, 95% CI -7.14 to 0.74 at 12 months). Adverse events were reported in three participants: mild ipsilateral leg pain during temporary testing (n = 1); and stimulator-site pain following insertion of neurostimulator (n = 2).In the crossover trial by Leroi 7 of 34 recruited participants were excluded from the crossover due mainly to complications or immediate device failure. Twenty-four of the remaining 27 participants while still blinded chose the period of stimulation they had preferred. Outcomes were reported separately for 19 participants who preferred the 'on' and five who preferred the 'off' period. For the group of 19, the median (range) episodes of faecal incontinence per week fell from 1.7 (0 to 9) during the 'off' period to 0.7 (0 to 5) during the 'on' period; for the group of five, however, the median (range) rose from 1.7 (0 to 11) during the 'off' period compared with 3.7 (0 to 11) during the 'on' period. Four of 27 participants experienced an adverse event resulting in removal of the stimulator.In the crossover trial by Sørensen and colleagues, participants did not experience any FI episodes in either the one-week 'on' or 'off' periods.In the crossover trial by Vaizey, participants reported an average of six, and one, episodes of faecal incontinence per week during the 'off' and 'on' periods respectively in two participants with FI. Neither study reported adverse events.In the crossover trial by Kahlke, 14 participants with FI experienced significantly lower episodes of FI per week during the stimulator 'on' (1 (SD, 1.7)) compared with the 'off' period (8.4 (SD, 8.7)). Adverse events reported include: haematoma formation (n = 3); misplacement of tined lead (1); and pain at stimulator site (n = 1).Two trials assessed SNS for constipation. In the Kenefick trial, the two participants experienced an average of two bowel movements per week during the 'off' crossover period, compared with five during the 'on' period. Abdominal pain and bloating occurred 79% of the time during the 'off' period compared with 33% during the 'on' period. No adverse events occurred. In contrast, in the trial by Dinning with 59 participants, SNS did not improve frequency of bowel movements and 73 adverse events were reported, which included pain at site of the implanted pulse generator (32), wound infection (12), and urological (17) events. AUTHORS' CONCLUSIONS The limited evidence from the included trials suggests that SNS can improve continence in a proportion of patients with faecal incontinence. However, SNS did not improve symptoms in patients with constipation. In addition, adverse events occurred in some patients where these were reported. Rigorous high quality randomised trials are needed to allow the effects of SNS for these conditions to be assessed with more certainty.
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Affiliation(s)
- Mohamed A Thaha
- Barts & The London School of Medicine & Dentistry, Queen Mary University LondonAcademic Surgical Unit, National Centre for Bowel Research & Surgical Innovation, Centre for Digestive Diseases, Blizard Institute1st Floor, Abernethy Building, 2 Newark StreetThe Royal London Hospital, WhitechapelLondonEnglandUKE1 2AT
| | - Amin A Abukar
- Barts & The London School of Medicine & Dentistry, Queen Mary University LondonAcademic Surgical Unit, National Centre for Bowel Research & Surgical Innovation, Centre for Digestive Diseases, Blizard Institute1st Floor, Abernethy Building, 2 Newark StreetThe Royal London Hospital, WhitechapelLondonEnglandUKE1 2AT
| | - Noel N Thin
- Barts & The London School of Medicine & Dentistry, Queen Mary University LondonAcademic Surgical Unit, National Centre for Bowel Research & Surgical Innovation, Centre for Digestive Diseases, Blizard Institute1st Floor, Abernethy Building, 2 Newark StreetThe Royal London Hospital, WhitechapelLondonEnglandUKE1 2AT
| | - Anthony Ramsanahie
- Barts & The London School of Medicine & Dentistry, Queen Mary University LondonAcademic Surgical Unit, National Centre for Bowel Research & Surgical Innovation, Centre for Digestive Diseases, Blizard Institute1st Floor, Abernethy Building, 2 Newark StreetThe Royal London Hospital, WhitechapelLondonEnglandUKE1 2AT
| | - Charles H Knowles
- Barts & The London School of Medicine & Dentistry, Queen Mary University LondonAcademic Surgical Unit, National Centre for Bowel Research & Surgical Innovation, Centre for Digestive Diseases, Blizard Institute1st Floor, Abernethy Building, 2 Newark StreetThe Royal London Hospital, WhitechapelLondonEnglandUKE1 2AT
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Abstract
OBJECTIVES Neurostimulation is increasingly used in treating bladder and bowel dysfunction, but its effect on rectal motility is obscure. The aim of the study was to evaluate the acute effect of transcutaneous electrical nerve stimulation (TENS) on rectal motility in children with overactive bladder (OAB). METHODS In this double-blind placebo-controlled study in 20 children with OAB (mean age 8.6 ± 1.8 years; 7 girls), 48-hour urodynamic monitoring including rectal manometry was performed. After 24-hours of baseline investigation without stimulation the children were randomised to either active TENS (n = 10) or placebo (n = 10). Surface electrodes were placed over the sacral bone. The exterior of active and placebo stimulators was identical. Starting in the morning, the children received either continuous TENS stimulation or placebo until bedtime. Rectal contractions were defined as pressure runs exceeding 5 cm H2O and lasting ≥3 minutes. RESULTS At baseline there was no significant difference in proportion of time with rectal contractions in the 2 groups (TENS group median 31% [range 12%-66%] vs placebo group median 31% [range 10%-66%]; P = 0.75); however, on the day of stimulation there was more time with rectal contractions in the group receiving TENS (median 51% [range 25%-78%]) compared with placebo (median 32% [range 4%-68%]; P = 0.02). Also, there was an increase in time with rectal contractions in the TENS group (P = 0.007) but not in the placebo group (P = 0.39). The night after the TENS was disabled, rectal activity in both groups returned to baseline level. CONCLUSIONS TENS acutely increases time with rectal contractions in children undergoing urodynamic investigation. The effect disappears when the stimulator is turned off.
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Graf W, Sonesson AC, Lindberg B, Åkerud P, Karlbom U. Results after sacral nerve stimulation for chronic constipation. Neurogastroenterol Motil 2015; 27:734-9. [PMID: 25810166 DOI: 10.1111/nmo.12546] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2014] [Accepted: 02/18/2015] [Indexed: 02/08/2023]
Abstract
BACKGROUND Sacral nerve stimulation is an established treatment for fecal incontinence and initial reports describe successful results also in subjects with chronic constipation. METHODS Consecutive patients with slow transit or outlet obstruction type constipation were offered external stimulation through a test electrode inserted in a sacral foramen during a 3-week period. The symptomatic evaluation was based on the number of bowel movements and a validated obstructed defecation score (ODS). A permanent implant was performed provided an overall 50% decrease in symptoms was observed. KEY RESULTS In total, 44 patients with chronic constipation were treated with a 3-week test stimulation. Fifteen experienced a 50% reduction of symptoms and received a permanent implant. Four of the 15 with permanent implants were explanted during the course of the study. Five subjects (11% of original group) reported sustained symptom relief at final follow-up after a mean of 24 months (range 4-81). Mean ODS score did not change during the treatment. Patients with predominantly slow transit constipation or outlet obstruction did not differ concerning success rate. CONCLUSIONS & INFERENCES Sacral nerve stimulation has limited efficacy in unselected patients with chronic constipation and cannot be recommended for treatment on routine basis.
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Affiliation(s)
- W Graf
- Institution of Surgical Sciences, Uppsala University, Uppsala, Sweden
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Dinning PG, Hunt L, Patton V, Zhang T, Szczesniak M, Gebski V, Jones M, Stewart P, Lubowski DZ, Cook IJ. Treatment efficacy of sacral nerve stimulation in slow transit constipation: a two-phase, double-blind randomized controlled crossover study. Am J Gastroenterol 2015; 110:733-40. [PMID: 25895520 DOI: 10.1038/ajg.2015.101] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2014] [Accepted: 03/03/2015] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Sacral nerve stimulation (SNS) is a potential treatment for constipation refractory to standard therapies. However, there have been no randomized controlled studies examining its efficacy. In patients with slow transit constipation, we evaluated the efficacy of suprasensory and subsensory SNS compared with sham, in a prospective, 18-week randomized, double-blind, placebo-controlled, two-phase crossover study. The primary outcome measure was the proportion of patients who, on more than 2 days/week for at least 2 of 3 weeks, reported a bowel movement associated with a feeling of complete evacuation. METHODS After 3 weeks of temporary peripheral nerve evaluation (PNE), all patients had permanent implantation and were randomized to subsensory/sham (3 weeks each) and then re-randomized to suprasensory/sham (3 weeks each) with a 2-week washout period between each arm. Daily stool dairies were kept, and quality of life (QoL; SF36) was measured at the end of each arm. RESULTS Between November 2006 and March 2012, 234 constipated patients were assessed, of whom 59 were willing and deemed eligible to participate (4 male; median age 42 years). Of the 59 patients, 16 (28%) responded to PNE. Fifty-five patients went on to permanent SNS implantation. The proportion of patients satisfying the primary outcome measure did not differ between suprasensory (30%) and sham (21%) stimulations, nor between subsensory (25%) and sham (25%) stimulations. There were no significant changes in QoL scores. CONCLUSIONS In patients with refractory slow transit constipation, SNS did not improve the frequency of complete bowel movements over the 3-week active period.
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Affiliation(s)
- Phil G Dinning
- 1] Faculty of Medicine, St. George Hospital Clinical School, University of New South Wales, Kogarah, New South Wales, Australia [2] Department of Gastroenterology and Surgery, Flinders Medical Centre, Flinders University, South Australia, Australia
| | - Linda Hunt
- Faculty of Medicine, St. George Hospital Clinical School, University of New South Wales, Kogarah, New South Wales, Australia
| | - Vicki Patton
- 1] Faculty of Medicine, St. George Hospital Clinical School, University of New South Wales, Kogarah, New South Wales, Australia [2] Department of Anorectal Physiology, St George Hospital, Kogarah, New South Wales, Australia
| | - Teng Zhang
- Department of Gastroenterology, St. George Hospital, Kogarah, New South Wales, Australia
| | - Michal Szczesniak
- Faculty of Medicine, St. George Hospital Clinical School, University of New South Wales, Kogarah, New South Wales, Australia
| | - Val Gebski
- Department of Biostatistics and Research Methodology, NHMRC Clinical Trials Centre, University of Sydney, Sydney, New South Wales, Australia
| | - Mike Jones
- Department of Psychology, Macquarie University, Ryde, New South Wales, Australia
| | - Peter Stewart
- Department of Surgery, The Concord Repatriate Hospital, Concord, New South Wales, Australia
| | - David Z Lubowski
- 1] Faculty of Medicine, St. George Hospital Clinical School, University of New South Wales, Kogarah, New South Wales, Australia [2] Department of Anorectal Physiology, St George Hospital, Kogarah, New South Wales, Australia
| | - Ian J Cook
- 1] Faculty of Medicine, St. George Hospital Clinical School, University of New South Wales, Kogarah, New South Wales, Australia [2] Department of Gastroenterology, St. George Hospital, Kogarah, New South Wales, Australia
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Dinning PG, Wiklendt L, Maslen L, Patton V, Lewis H, Arkwright JW, Wattchow DA, Lubowski DZ, Costa M, Bampton PA. Colonic motor abnormalities in slow transit constipation defined by high resolution, fibre-optic manometry. Neurogastroenterol Motil 2015; 27:379-88. [PMID: 25557630 DOI: 10.1111/nmo.12502] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Accepted: 12/03/2014] [Indexed: 12/15/2022]
Abstract
BACKGROUND Slow transit constipation (STC) is associated with colonic motor abnormalities. The underlying cause(s) of the abnormalities remain poorly defined. In health, utilizing high resolution fiber-optic manometry, we have described a distal colonic propagating motor pattern with a slow wave frequency of 2-6 cycles per minute (cpm). A high calorie meal caused a rapid and significant increase in this activity, suggesting the intrinsic slow wave activity could be mediated by extrinsic neural input. Utilizing the same protocol our aim was to characterize colonic meal response STC patients. METHODS A fiber-optic manometry catheter (72 sensors at 1 cm intervals) was colonoscopically placed with the tip clipped at the ascending or transverse colon, in 14 patients with scintigraphically confirmed STC. Manometric recordings were taken, for 2 h pre and post a 700 kCal meal. Data were compared to 12 healthy adults. KEY RESULTS Prior to and/or after the meal the cyclic propagating motor pattern was identified in 13 of 14 patients. However, the meal, did not increase the cyclic motor pattern (preprandial 7.4 ± 7.6 vs postprandial 8.3 ± 4.5 per/2 h), this is in contrast to the dramatic increase observed in health (8.3 ± 13.3 vs 59.1 ± 89.0 per/2 h; p < 0.001). CONCLUSIONS & INFERENCES In patients with STC a meal fails to induce the normal increase in the distal colonic cyclic propagating motor patterns. We propose that these data may indicate that the normal extrinsic parasympathetic inputs to the colon are attenuated in these patients.
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Affiliation(s)
- P G Dinning
- Departments of Gastroenterology and Surgery, Flinders Medical Centre, Flinders University, Bedford Park, SA, Australia; St.George Hospital Clinical School, Faculty of Medicine, University of New South Wales, Kogarah, NSW, Australia
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Vather R, O'Grady G, Bissett IP, Dinning PG. Postoperative ileus: mechanisms and future directions for research. Clin Exp Pharmacol Physiol 2014; 41:358-70. [PMID: 24754527 DOI: 10.1111/1440-1681.12220] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Revised: 02/13/2014] [Accepted: 02/25/2014] [Indexed: 12/13/2022]
Abstract
Postoperative ileus (POI) is an abnormal pattern of gastrointestinal motility characterized by nausea, vomiting, abdominal distension and/or delayed passage of flatus or stool, which may occur following surgery. Postoperative ileus slows recovery, increases the risk of developing postoperative complications and confers a significant financial load on healthcare institutions. The aim of the present review is to provide a succinct overview of the clinical features and pathophysiological mechanisms of POI, with final comment on selected directions for future research.Terminology used when describing POI is inconsistent, with little differentiation made between the obligatory period of gut dysfunction seen after surgery ('normal POI') and the more clinically and pathologically significant entity of a 'prolonged POI'. Both normal and prolonged POI represent a fundamentally similar pathophysiological phenomenon. The aetiology of POI is postulated to be multifactorial, with principal mediators being inflammatory cell activation, autonomic dysfunction (both primarily and as part of the surgical stress response), agonism at gut opioid receptors, modulation of gastrointestinal hormone activity and electrolyte derangements. A final common pathway for these effectors is impaired contractility and motility and gut wall oedema. There are many potential directions for future research. In particular, there remains scope to accurately characterize the gastrointestinal dysfunction that underscores an ileus, development of an accurate risk stratification tool will facilitate early implementation of preventive measures and clinical appraisal of novel therapeutic strategies that target individual pathways in the pathogenesis of ileus warrant further investigation.
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Affiliation(s)
- Ryash Vather
- Department of Surgery, University of Auckland, Auckland, New Zealand
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Fassov J, Brock C, Lundby L, Drewes AM, Gregersen H, Buntzen S, Laurberg S, Krogh K. Sacral nerve stimulation changes rectal sensitivity and biomechanical properties in patients with irritable bowel syndrome. Neurogastroenterol Motil 2014; 26:1597-604. [PMID: 25223743 DOI: 10.1111/nmo.12426] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Accepted: 08/14/2014] [Indexed: 12/20/2022]
Abstract
BACKGROUND Sacral nerve stimulation (SNS) has been demonstrated to alleviate symptoms and improve quality of life in selected patients with irritable bowel syndrome (IBS). The mechanisms of action, however, remain unknown. The aim of the study was to evaluate the effects of SNS on rectal sensitivity and biomechanical properties in patients with IBS. METHODS Twenty patients with diarrhea-predominant (n = 11) or mixed (n = 9) IBS were treated with SNS in a controlled, randomized crossover trial. They were randomized to either 1 month of SNS (ON) or placebo (OFF) with the opposite setting for the next month. Sensory and biomechanical parameters were assessed by multimodal rectal stimulation at the end of each period. IBS-specific symptoms were evaluated at baseline and at the end of each treatment period. KEY RESULTS Cold stimuli were better tolerated in the ON period (19.9 °C[± 0.6]) compared to the OFF period (21.8 °C[± 0.6]; p = 0.03). Significantly lower cross-sectional areas were needed to elicit sensory responses in the ON period (1545 mm(2) [± 95]) compared to the OFF period (1869 mm(2) [± 92]; p = 0.015). The association between reduced sensory threshold and improvement of constipation was of borderline significance (p = 0.05). Wall stiffness was significantly lower in the ON period (192 mmHg[± 10]) compared to the OFF period (234 mmHg[± 10]; p = 0.004). Reduced wall stiffness was significantly associated with improved overall GSRS-IBS symptom score (p = 0.01). Reduced sensory threshold to stretch (p = 0.02) and reduced wall stiffness (p < 0.001) were predictors of the GSRS-IBS symptom score. CONCLUSIONS & INFERENCES SNS for diarrhea-predominant and mixed IBS relaxes the rectal wall, while making it more sensitive to stretch and less sensitive to cold. Reduced wall stiffness and increased sensitivity to stretch are associated with improved GSRS-IBS symptom score.
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Affiliation(s)
- J Fassov
- Department of Surgery P, Aarhus University Hospital, Aarhus, Denmark; Neurogastroenterology Unit, Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus, Denmark
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Colon high-resolution manometry: using pressure topography plots to evaluate pediatric colon motility. J Pediatr Gastroenterol Nutr 2014; 59:500-4. [PMID: 24840515 DOI: 10.1097/mpg.0000000000000442] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Colon manometry is usually performed using the 8-pressure sensor water-perfused manometry system. High-resolution manometry (HRM), using closely spaced solid-state pressure recording sensors, provides more detailed information of gut luminal pressure changes, and, by displaying the HRM data as a pressure topography plot (PTP), helps with data interpretation. Our aim was to compare the colon and rectal luminal pressure data obtained using 8 pressure sensors and displayed as conventional line plot (CLP) with data obtained using a custom-made solid state manometry catheter with 36 pressure recording sensors and displayed as PTP. METHODS We evaluated colon manometry patterns during fasting, response to meal, and bisacodyl stimulation in 10 patients with constipation and stool expulsion disorders. The data from 8 pressure sensors were displayed as CLP and data from 36 pressure sensors as PTP. Two gastroenterologists independently interpreted these studies. We calculated variability in interpreting colon, rectal, and anal manometry data. RESULTS Intermode, interobserver, and intraobserver reliability were good to excellent for recognizing colon contraction patterns when data are displayed as PTP compared with when displayed as CLP, whereas the reliability for recognizing anal contractions were poor to excellent. CONCLUSIONS Colonic and anal manometry patterns are easily recognized when HRM data are expressed as PTP. Obtaining information of colonic luminal pressure changes with rectum and anal pressure changes using HRM can help better understand the pathophysiology of pediatric constipation and stool expulsion disorders.
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DINNING PG, WIKLENDT L, MASLEN L, GIBBINS I, PATTON V, ARKWRIGHT JW, LUBOWSKI DZ, O'GRADY G, BAMPTON PA, BROOKES SJ, COSTA M. Quantification of in vivo colonic motor patterns in healthy humans before and after a meal revealed by high-resolution fiber-optic manometry. Neurogastroenterol Motil 2014; 26:1443-57. [PMID: 25131177 PMCID: PMC4438670 DOI: 10.1111/nmo.12408] [Citation(s) in RCA: 140] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Accepted: 07/04/2014] [Indexed: 02/06/2023]
Abstract
BACKGROUND Until recently, investigations of the normal patterns of motility of the healthy human colon have been limited by the resolution of in vivo recording techniques. METHODS We have used a new, high-resolution fiber-optic manometry system (72 sensors at 1-cm intervals) to record motor activity from colon in 10 healthy human subjects. KEY RESULTS In the fasted colon, on the basis of rate and extent of propagation, four types of propagating motor pattern could be identified: (i) cyclic motor patterns (at 2-6/min); (ii) short single motor patterns; (iii) long single motor patterns; and (iv) occasional retrograde, slow motor patterns. For the most part, the cyclic and short single motor patterns propagated in a retrograde direction. Following a 700 kCal meal, a fifth motor pattern appeared; high-amplitude propagating sequences (HAPS) and there was large increase in retrograde cyclic motor patterns (5.6 ± 5.4/2 h vs 34.7 + 19.8/2 h; p < 0.001). The duration and amplitude of individual pressure events were significantly correlated. Discriminant and multivariate analysis of duration, gradient, and amplitude of the pressure events that made up propagating motor patterns distinguished clearly two types of pressure events: those belonging to HAPS and those belonging to all other propagating motor patterns. CONCLUSIONS & INFERENCES This work provides the first comprehensive description of colonic motor patterns recorded by high-resolution manometry and demonstrates an abundance of retrograde propagating motor patterns. The propagating motor patterns appear to be generated by two independent sources, potentially indicating their neurogenic or myogenic origin.
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Affiliation(s)
- P. G. DINNING
- Departments of Gastroenterology and Surgery, Flinders Medical Centre, Bedford Park, South Australia, Australia, Disciplines of Human Physiology, Flinders University, Bedford Park, South Australia, Australia, St. George Hospital Clinical School, Faculty of Medicine, University of New South Wales, Kogarah, New South Wales, Australia
| | - L. WIKLENDT
- Disciplines of Human Physiology, Flinders University, Bedford Park, South Australia, Australia
| | - L. MASLEN
- Departments of Gastroenterology and Surgery, Flinders Medical Centre, Bedford Park, South Australia, Australia
| | - I. GIBBINS
- Anatomy and Histology, Flinders University, Bedford Park, South Australia, Australia
| | - V. PATTON
- St. George Hospital Clinical School, Faculty of Medicine, University of New South Wales, Kogarah, New South Wales, Australia, Department of Anorectal Physiology, St George Hospital, Kogarah, New South Wales, Australia
| | - J. W. ARKWRIGHT
- Computer Science, Engineering and Mathematics, Flinders University, Bedford Park, South Australia, Australia
| | - D. Z. LUBOWSKI
- Disciplines of Human Physiology, Flinders University, Bedford Park, South Australia, Australia
| | - G. O'GRADY
- Department of Surgery, University of Auckland, Auckland, New Zealand
| | - P. A. BAMPTON
- Departments of Gastroenterology and Surgery, Flinders Medical Centre, Bedford Park, South Australia, Australia
| | - S. J. BROOKES
- Disciplines of Human Physiology, Flinders University, Bedford Park, South Australia, Australia
| | - M. COSTA
- Disciplines of Human Physiology, Flinders University, Bedford Park, South Australia, Australia
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Carrington EV, Evers J, Grossi U, Dinning PG, Scott SM, O'Connell PR, Jones JFX, Knowles CH. A systematic review of sacral nerve stimulation mechanisms in the treatment of fecal incontinence and constipation. Neurogastroenterol Motil 2014; 26:1222-37. [PMID: 25167953 DOI: 10.1111/nmo.12388] [Citation(s) in RCA: 124] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Accepted: 06/04/2014] [Indexed: 12/23/2022]
Abstract
BACKGROUND Sacral nerve stimulation (SNS) is now well established as a treatment for fecal incontinence (FI) resistant to conservative measures and may also have utility in the management of chronic constipation; however, mechanism of action is not fully understood. End organ effects of SNS have been studied in both clinical and experimental settings, but interpretation is difficult due to the multitude of techniques used and heterogeneity of reported findings. The aim of this study was to systematically review available evidence on the mechanisms of SNS in the treatment of FI and constipation. METHODS Two systematic reviews of the literature (performed in accordance with the Preferred Reporting Items for Systematic reviews and Meta-Analyses framework) were performed to identify manuscripts pertaining to (a) clinical and (b) physiological effects of SNS during the management of hindgut dysfunction. KEY RESULTS The clinical literature search revealed 161 articles, of which 53 were deemed suitable for analysis. The experimental literature search revealed 43 articles, of which nine were deemed suitable for analysis. These studies reported results of investigative techniques examining changes in cortical, gastrointestinal, colonic, rectal, and anal function. CONCLUSIONS & INFERENCES The initial hypothesis that the mechanism of SNS was primarily peripheral motor neurostimulation is not supported by the majority of recent studies. Due to the large body of evidence demonstrating effects outside of the anorectum, it appears likely that the influence of SNS on anorectal function occurs at a pelvic afferent or central level.
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Affiliation(s)
- E V Carrington
- National Centre for Bowel Research and Surgical Innovation (NCRBSI) and The Wingate Institute of Neurogastroenterology, Barts and the London School of Medicine and Dentistry, London, UK; Biomedical Science Section, School of Medicine and Medical Science, University College Dublin, Dublin, Ireland
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A randomized, controlled, crossover study of sacral nerve stimulation for irritable bowel syndrome. Ann Surg 2014; 260:31-6. [PMID: 24509204 DOI: 10.1097/sla.0000000000000559] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVE To investigate whether sacral nerve stimulation reduces irritable bowel syndrome (IBS)-specific symptoms by a randomized, controlled, crossover study. BACKGROUND IBS affects 3% to 22% of the population worldwide, but most patients continue to have symptoms despite treatment. METHODS Patients included from our tertiary center had diarrhea-predominant or mixed IBS, with a minimum baseline IBS symptom score (Gastrointestinal Syndrome Rating Scale-IBS questionnaire) of 40 points reduced by a minimum of 30% during the percutaneous nerve evaluation before permanent implantation. Patients were randomized (1:1) to have the stimulator ON or OFF for 1 month and then the opposite for another month. Investigators and patients were not informed of the setting. IBS-specific symptoms and quality of life were assessed through bowel diaries and validated questionnaires. Primary endpoint was the IBS-specific symptom score. RESULTS Twenty-one patients were randomized. Ten were eligible for analysis in each group. IBS-specific symptom scores were significantly reduced during stimulation: the median difference in the ON-OFF group was 12 (range, -22 to 44) and in the OFF-ON group -17.5 (range, -48 to -1) (P = 0.0009). IBS-specific quality-of-life scores improved significantly during stimulation: the median difference in the ON-OFF group was 16 (range, -24 to 69) and in the OFF-ON group -42.5 (range, -77 to 0) (P = 0.0003). At 1-year follow-up, the median IBS-specific symptom score (25; range, 13-65) was significantly lower than that at baseline (62; range, 45-80) (P = 0.0001). CONCLUSIONS Sacral nerve stimulation significantly reduces symptoms and improves quality of life of highly selected patients with IBS.
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A randomised, controlled study of small intestinal motility in patients treated with sacral nerve stimulation for irritable bowel syndrome. BMC Gastroenterol 2014; 14:111. [PMID: 24965754 PMCID: PMC4099082 DOI: 10.1186/1471-230x-14-111] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Accepted: 06/02/2014] [Indexed: 12/15/2022] Open
Abstract
Background Irritable bowel syndrome (IBS) is among the most common gastrointestinal disorders worldwide. In selected patients with severe diarrhoea-predominant or mixed IBS subtypes sacral nerve stimulation (SNS) alleviates IBS-specific symptoms and improves quality of life. The mode of action, however, remains unknown. The present study aimed to evaluate the effect of SNS on small intestinal motility in IBS patients. Methods Twenty patients treated with SNS for severe diarrhoea-predominant or mixed IBS were included in a randomised, controlled, crossover study. The neurostimulator was turned ON or OFF for the first one month and then to the opposite setting for the next month. Gastrointestinal transit patterns were investigated with the Motility Tracking System-1 (MTS-1) at the end of each the ON and OFF period. Primary endpoint was change in the velocity of the magnetic pill within the small intestine. Statistical testing was performed with Wilcoxon’s rank sum test and Fisher’s exact test. Results The median velocity of the magnetic pill through the small intestine in the fasting state was not significantly different between periods with and without SNS (Group ON-OFF: median change 0 m/h (range -1.07, 0.63), Group OFF-ON: median change 0.27 m/h (range -0.59, 1.12)) (p = 0.25). Neither, was the median velocity of the magnetic pill through the small intestine in the postprandial state significantly different between periods with and without SNS (Group ON-OFF: median change -0.13 m/h (range -0.46, 0.23), Group OFF-ON: median change 0.015 m/h (range -0.48, 0.59)) (p = 0.14). Conclusion Even though SNS may reduce symptoms of diarrhoea-predominant and mixed IBS, it has no detectable effect on small intestinal transit patterns. Trial registration Clinical.trials.gov, (NCT00919672).
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Vather R, O'Grady G, Bissett IP, Dinning PG. Postoperative ileus: mechanisms and future directions for research. Clin Exp Pharmacol Physiol 2014. [DOI: 10.1111/1440-1681.12220 10.1016/j.ijge.2013.08.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Ryash Vather
- Department of Surgery; University of Auckland; Auckland New Zealand
| | - Greg O'Grady
- Department of Surgery; University of Auckland; Auckland New Zealand
| | - Ian P Bissett
- Department of Surgery; University of Auckland; Auckland New Zealand
| | - Phil G Dinning
- Departments of Gastroenterology and Surgery; Flinders Medical Centre; Flinders University; Adelaide SA Australia
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Noblett KL, Cadish LA. Sacral nerve stimulation for the treatment of refractory voiding and bowel dysfunction. Am J Obstet Gynecol 2014; 210:99-106. [PMID: 23899452 DOI: 10.1016/j.ajog.2013.07.025] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2013] [Revised: 07/16/2013] [Accepted: 07/23/2013] [Indexed: 01/14/2023]
Abstract
Sacral nerve stimulation, sometimes referred to as a "pacemaker for the bladder and bowels" delivers nonpainful, electrical pulses to the sacral nerves to improve or restore function. A relatively simple procedure works via a complex mechanism to modulate the reflexes that influence the bladder, bowels, sphincters, and pelvic floor. Current approved indications include urinary urge incontinence, urgency-frequency, nonobstructive urinary retention, and fecal incontinence. The history, mechanism of action, evolution, and landmark literature for this treatment modality are reviewed.
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Bouguen G, Ropert A, Lainé F, Pequin P, Morcet J, Bretagne JF, Siproudhis L. Effects of transcutaneous tibial nerve stimulation on anorectal physiology in fecal incontinence: a double-blind placebo-controlled cross-over evaluation. Neurogastroenterol Motil 2014; 26:247-54. [PMID: 24304363 DOI: 10.1111/nmo.12256] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Accepted: 10/05/2013] [Indexed: 02/08/2023]
Abstract
BACKGROUND Transcutaneous electrical tibial nerve stimulation (TENS) is of growing interest for the treatment of fecal incontinence (FI), but its mechanism of action remains uninvestigated. We aimed to further assess the anorectal response to TENS in a dynamic model. METHODS We performed a placebo-controlled, randomized, double-blinded crossover study in 19 patients suffering from FI to assess the effects of TENS on anorectal function. Anorectal physiology and perception were recorded through two sequences of rectal isobaric distension using an electronic barostat device to measure anal and rectal pressures, rectal volumes, and perception scores. KEY RESULTS Maximal rectal pressure and volume variation were affected by TENS, with higher mean maximal rectal pressure (5.33 and 4.06 mmHg in the active and sham TENS respectively, p < 0.0001) and lower volume variation (11.45 and 14.7 mL in the active and sham stimulation respectively, p < 0.05). Rectal compliance was not modified by active TENS. Pressure of the upper anal canal was significantly lower with raised isobaric distension in sequences assigned to active TENS. CONCLUSIONS & INFERENCES Acute TENS modified anorectal physiology by strengthening the myogenic response to distension rather than increasing muscle relaxation and related rectal compliance in patients with FI.
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Affiliation(s)
- G Bouguen
- Service des Maladie de l'Appareil Digestif, Centre Hospitalier Pontchaillou et Université de Rennes 1, Rennes, France; INSERM U991, Université de Rennes 1, Rennes, France
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Bharucha AE, Rao SSC. An update on anorectal disorders for gastroenterologists. Gastroenterology 2014; 146:37-45.e2. [PMID: 24211860 PMCID: PMC3913170 DOI: 10.1053/j.gastro.2013.10.062] [Citation(s) in RCA: 116] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Revised: 10/21/2013] [Accepted: 10/22/2013] [Indexed: 01/13/2023]
Abstract
Gastroenterologists frequently encounter pelvic floor disorders, which affect 10% to 15% of the population. The anorectum is a complex organ that collaborates with the pelvic floor muscles to preserve fecal continence and enable defecation. A careful clinical assessment is critical for the diagnosis and management of defecatory disorders and fecal incontinence. Newer diagnostic tools (eg, high-resolution manometry and magnetic resonance defecography) provide a refined understanding of anorectal dysfunctions and identify phenotypes in defecatory disorders and fecal incontinence. Conservative approaches, including biofeedback therapy, are the mainstay for managing these disorders; new minimally invasive approaches may benefit a subset of patients with fecal incontinence, but more controlled studies are needed. This mini-review highlights advances, current concepts, and controversies in the area.
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Affiliation(s)
- Adil E Bharucha
- Clinical Enteric Neuroscience Translational and Epidemiological Research Program, Division of Gastroenterology and Hepatology, Mayo Clinic and Mayo Foundation, Rochester, Minnesota
| | - Satish S C Rao
- Section of Gastroenterology/Hepatology, Department of Internal Medicine, Medical College of Georgia, Georgia Regents University, Augusta, Georgia.
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