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Basahai I, Alzeer MA, Almuhanna BS. Successful treatment of gastric bleeding caused by left phrenic artery pseudoaneurysm post-surgery with endovascular embolization: A case report. Radiol Case Rep 2024; 19:2351-2356. [PMID: 38532908 PMCID: PMC10963892 DOI: 10.1016/j.radcr.2024.02.093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 02/18/2024] [Accepted: 02/25/2024] [Indexed: 03/28/2024] Open
Abstract
Pseudoaneurysms are rare but potentially life-threatening complications that may occur after surgical procedures. This report presents the case of a 28-year-old woman who developed a pseudoaneurysm in the Left Inferior Phrenic Artery (LIPA) following a Laparoscopic Sleeve Gastrectomy (LSG). The complication manifested as severe gastrointestinal bleeding. Upper GI Endoscopy and multislice CT scan, repeated twice, failed to localize the bleeding source to treat it. Successful endovascular embolization using a Glue/Lipidol mixture was achieved despite difficulties in localizing the pseudoaneurysm, resulting in immediate symptomatic relief and avoiding surgical intervention. This case shows the importance of prompt identification and management of LIPA pseudoaneurysms following LSG, highlighting the importance of early diagnosis to prevent further hemodynamic deterioration and other adverse outcomes.
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Affiliation(s)
- Izzat Basahai
- Consultant Interventional Radiologist, King Khalid University Hospital, Department of Radiology, King Saud University, Riyadh, Saudi Arabia
| | - Meshari A. Alzeer
- MBBS, College of Medicine, King Saud University, Riyadh, Saudi Arabia
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2
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Bufacchi P, Gomes-Jorge M, Walter T, Poncet G, Pasquer A. Mesenteric sparing approach for advanced nodal extent in small intestinal neuroendocrine tumors. Is there a limit to the vascular resection in order to avoid creating a short small bowel syndrome? An anatomic research study. Surg Radiol Anat 2024; 46:811-823. [PMID: 38652257 DOI: 10.1007/s00276-024-03356-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Accepted: 03/30/2024] [Indexed: 04/25/2024]
Abstract
PURPOSE By selectively perfusing the first three jejunal arteries (JA), we aim to assess the individual perfusion length of small bowel (SB) and its impact on nodal resection in stage III-up small-intestinal neuroendocrine tumors (SI-NET). METHODS Our anatomical research protocol implies a midline laparotomy and three measures of the SB length. We then perform a classical anterior approach of the superior mesenteric vessels. We carry on with the complete dissection and checking of the superior mesenteric artery (SMA) in order to identify the first three JA. Then we selectively perfuse each artery with colored latex solutions and measure the length of small bowel perfused respectively. RESULTS We conducted our protocol on six cadaveric subjects. Mean(SD) SB length was 413(5.7), 535(13.2), 485(15), 353(25.1), 730(17.3) and 525(16° cm respectively from subject one to six. Most JA originated from the left side of the SMA. The first JA originated from its posterior wall in two subjects. Mean(SD) distance of origin of the first three JA was 4.6(1.3)cm, 6(1.1)cm and 7.1(0.9)cm respectively. Mean(SD) diameter of SMA was 10.8(3.3)mm. Mean diameter of the three first JA was 4(1.4)mm, 4(1.5)mm and 5(1.2)mm respectively. Mean(SD) SB length perfused by first and second JA was 224(14.9)cm, 175(8.6)cm, 238.3(7.6)cm, 84.3(5.1)cm, 233.3(5.8)cm and 218.3(10.4)cm respectively from subject one to six. CONCLUSION We observed a trend suggesting that the first and second JA may sustain a SB length beyond the viable 1.5 m limit, implying the feasibility of stage III-up SI-NET resection with just two JA.
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Affiliation(s)
- Paul Bufacchi
- Department of Digestive and Oncological Surgery, Edouard Herriot Hospital, Hospices Civils de Lyon, 5 place d'Arsonval, Lyon, 69003, France
| | - Mathys Gomes-Jorge
- Department of Digestive and Oncological Surgery, Edouard Herriot Hospital, Hospices Civils de Lyon, 5 place d'Arsonval, Lyon, 69003, France
| | - Thomas Walter
- Department of Oncology, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France
- Claude Bernard Lyon1 University, Lyon, France
- INSERM, UMR 1052-UMR5286, UMR 1032 Lyon Cancer Research Center, Faculté Laennec, Lyon, France
| | - Gilles Poncet
- Department of Digestive and Oncological Surgery, Edouard Herriot Hospital, Hospices Civils de Lyon, 5 place d'Arsonval, Lyon, 69003, France
- Claude Bernard Lyon1 University, Lyon, France
- INSERM, UMR 1052-UMR5286, UMR 1032 Lyon Cancer Research Center, Faculté Laennec, Lyon, France
| | - Arnaud Pasquer
- Department of Digestive and Oncological Surgery, Edouard Herriot Hospital, Hospices Civils de Lyon, 5 place d'Arsonval, Lyon, 69003, France.
- Claude Bernard Lyon1 University, Lyon, France.
- Research on Healthcare Performance RESHAPE, Inserm U1290, Université Claude Bernard Lyon 1, Lyon, France.
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3
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Moore ML, Ford JL, Schladweiler MC, Dye JA, Jackson TW, Miller CN. Gut metabolic changes during pregnancy reveal the importance of gastrointestinal region in sample collection. Metabolomics 2024; 20:40. [PMID: 38460019 PMCID: PMC11168590 DOI: 10.1007/s11306-024-02099-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 02/06/2024] [Indexed: 03/11/2024]
Abstract
INTRODUCTION Studies of gastrointestinal physiology and the gut microbiome often consider the influence of intestinal region on experimental endpoints. However, this same consideration is not often applied to the gut metabolome. Understanding the contribution of gut regionality may be critically important to the rapidly changing metabolic environments, such as during pregnancy. OBJECTIVES We sought to characterize the difference in the gut metabolome in pregnant mice stratified by region-comparing the small intestine, cecum, and feces. Pre-pregnancy feces were collected to understand the influence of pregnancy on the fecal metabolome. METHODS Feces were collected from CD-1 female mice before breeding. On gestation day (GD) 18, gut contents were collected from the small intestine, cecum, and descending colon. Metabolites were analyzed with LC-MS/MS using the Biocrates MetaboINDICATOR™ MxP® Quant 500 kit. RESULTS Of the 104 small molecule metabolites meeting analysis criteria, we found that 84 (81%) were differentially abundant based on gut region. The most significant regional comparison observed was between the cecum and small intestines, with 52 (50%) differentially abundant metabolites. Pregnancy itself altered 41 (39.4%) fecal small molecule metabolites. CONCLUSIONS The regional variation observed in the gut metabolome are likely due to the microbial and physiological differences between the different parts of the intestines. Additionally, pregnancy impacts the fecal metabolome, which may be due to evolving needs of both the dam and fetus.
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Affiliation(s)
- Makala L Moore
- Oak Ridge Institute for Science and Education, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Jermaine L Ford
- Chemical Characterization and Exposure Division, Center for Computational Toxicology and Exposure, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Mette C Schladweiler
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Janice A Dye
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Thomas W Jackson
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA.
| | - Colette N Miller
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA.
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4
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Kawarai SI, Katahira S, Miyatake M, Itagaki K, Tsuruoka N, Haga Y, Saiki Y. Development of modified laser Doppler flowmetry device for real-time monitoring of esophageal mucosal blood flow: a preclinical assessment with an animal model. J Artif Organs 2023:10.1007/s10047-023-01408-w. [PMID: 37418161 DOI: 10.1007/s10047-023-01408-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 05/31/2023] [Indexed: 07/08/2023]
Abstract
This study aimed to modify a laser Doppler flowmeter designed and assembled at our institute. After measuring sensitivity evaluation in ex vivo experiments, we confirmed the efficacy of this new device for monitoring real-time esophageal mucosal blood flow changes after thoracic stent graft implantation by simulating various clinical situations in an animal model. Thoracic stent graft implantation was performed in a swine model (n = 8). Esophageal mucosal blood flow decreased significantly from baseline (34.1 ± 18.8 ml/min/100 g vs. 16.7 ± 6.6 ml/min/100 g, P < 0.05) in the lower esophagus (Th6-Th8) where the stent graft covered the aorta. In the hemorrhagic shock model (shock index ≥ 1.0), esophageal mucosal blood flow showed a remarkable change from baseline in the upper esophagus (Th1-Th3), where the stent graft did not cover the aorta (20.8 ± 9.8 ml/min/100 g vs. 12.9 ± 8.6 ml/min/100 g, P < 0.01); however, it returned to the baseline value within a 30-min period. Mucosal blood flow remained stable in the esophagus, where the stent graft did not cover the aorta. After elevating the mean blood pressure to > 70 mmHg with continuous intravenous noradrenaline infusion, esophageal mucosal blood flow increased significantly in both regions; however, the reaction was different between the two regions. Our newly developed laser Doppler flowmeter could measure real-time esophageal mucosal blood flow changes in various clinical situations during thoracic stent graft implantation in a swine model. Hence, this device can be applied in many medical fields by downsizing it.
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Affiliation(s)
- Shun-Ichi Kawarai
- Division of Cardiovascular Surgery, Hachinohe City Hospital, 3-1-1 Tamukai, Hachinohe, Aomori, 031-8555, Japan
- Division of Cardiovascular Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-Ku, Sendai, 980-8574, Japan
| | - Shintaro Katahira
- Division of Cardiovascular Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-Ku, Sendai, 980-8574, Japan.
| | - Midori Miyatake
- Division of Cardiovascular Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-Ku, Sendai, 980-8574, Japan
| | - Kota Itagaki
- Division of Cardiovascular Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-Ku, Sendai, 980-8574, Japan
| | - Noriko Tsuruoka
- Tohoku University Graduate School of Engineering, 6-6-12 Aoba, Aramaki, Aoba-Ku, Sendai, 980-8579, Japan
| | - Yoichi Haga
- Tohoku University Graduate School of Biomedical Engineering, 6-6-12 Aoba, Aramaki, Aoba-Ku, Sendai, 980-8579, Japan
| | - Yoshikatsu Saiki
- Division of Cardiovascular Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-Ku, Sendai, 980-8574, Japan
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5
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Cirocchi R, Randolph J, Cheruiyot I, Davies RJ, Gioia S, Henry BM, Anania G, Donini A, Mingoli A, Sapienza P, Avenia S. Discontinuity of marginal artery at splenic flexure and rectosigmoid junction: A systematic review and meta-analysis. Colorectal Dis 2023. [PMID: 37317032 DOI: 10.1111/codi.16624] [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: 04/10/2022] [Revised: 02/08/2023] [Accepted: 04/02/2023] [Indexed: 06/16/2023]
Abstract
AIM The aim of this study was to provide comprehensive evidence-based assessment of the discontinuity of the marginal artery at the splenic flexure (SF) and the rectosigmoid junction (RSJ). METHOD A systematic review was conducted of literature published to 26 December 2022 in the electronic databases PubMed, SCOPUS and Web of Science to identify studies eligible for inclusion. Data were extracted and pooled into a meta-analysis using the Metafor package in R. The primary outcomes were the pooled PPEs of the marginal artery at the SF and the RSJ. The secondary outcome was the size of vascular anastomoses. RESULTS A total of 21 studies (n = 2,864 patients) were included. The marginal artery was present at the splenic flexure in 82% (95% CI: 62-95) of patients. Approximately 81% (95% CI: 63-94%) of patients had a large macroscopic anastomosis, while the remainder (19%) had small bridging ramifications forming the vessel. The marginal artery was present at the RSJ in 82% (95% CI: 70-91%) of patients. CONCLUSION The marginal artery may be absent at the SF and the RSJ in up to 18% of individuals, which may confer a higher risk of ischaemic colitis. As a result of high interstudy heterogeneity noted in our analysis, further well-powered studies to clarify the prevalence of the marginal artery at the SF and the RSJ, as well as its relationship with other complementary colonic collaterals (intermediate and central mesenteric), are warranted.
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Affiliation(s)
- Roberto Cirocchi
- Department of Medicine and Surgery, University of Perugia, Piazza dell' Universitá, Perugia, Italy
| | - Justus Randolph
- Georgia Baptist College of Nursing, Mercer University, Atlanta, USA
| | - Isaac Cheruiyot
- Department of Human Anatomy, University of Nairobi, Nairobi, Kenya
- International Evidence-Based Anatomy Working Group, Krakow, Poland
| | - R Justin Davies
- Cambridge Colorectal Unit, Addenbrooke's Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
- University of Cambridge, Cambridge, UK
| | - Sara Gioia
- Section of Legal Medicine, Hospital of Terni, Terni, Italy
| | | | - Gabriele Anania
- Department of Medical Science, Sant'Anna Hospital, University of Ferrara, Ferrara, Italy
| | - Annibale Donini
- Department of Medicine and Surgery, University of Perugia, Piazza dell' Universitá, Perugia, Italy
| | - Andrea Mingoli
- Department of Surgery "Pietro Valdoni", "Sapienza" University of Rome, Rome, Italy
| | - Paolo Sapienza
- Department of Surgery "Pietro Valdoni", "Sapienza" University of Rome, Rome, Italy
| | - Stefano Avenia
- Department of Medicine and Surgery, University of Perugia, Piazza dell' Universitá, Perugia, Italy
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Bagyánszki M, Bódi N. Key elements determining the intestinal region-specific environment of enteric neurons in type 1 diabetes. World J Gastroenterol 2023; 29:2704-2716. [PMID: 37274063 PMCID: PMC10237112 DOI: 10.3748/wjg.v29.i18.2704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 03/28/2023] [Accepted: 04/17/2023] [Indexed: 05/11/2023] Open
Abstract
Diabetes, as a metabolic disorder, is accompanied with several gastrointestinal (GI) symptoms, like abdominal pain, gastroparesis, diarrhoea or constipation. Serious and complex enteric nervous system damage is confirmed in the background of these diabetic motility complaints. The anatomical length of the GI tract, as well as genetic, developmental, structural and functional differences between its segments contribute to the distinct, intestinal region-specific effects of hyperglycemia. These observations support and highlight the importance of a regional approach in diabetes-related enteric neuropathy. Intestinal large and microvessels are essential for the blood supply of enteric ganglia. Bidirectional morpho-functional linkage exists between enteric neurons and enteroglia, however, there is also a reciprocal communication between enteric neurons and immune cells on which intestinal microbial composition has crucial influence. From this point of view, it is more appropriate to say that enteric neurons partake in multidirectional communication and interact with these key players of the intestinal wall. These interplays may differ from segment to segment, thus, the microenvironment of enteric neurons could be considered strictly regional. The goal of this review is to summarize the main tissue components and molecular factors, such as enteric glia cells, interstitial cells of Cajal, gut vasculature, intestinal epithelium, gut microbiota, immune cells, enteroendocrine cells, pro-oxidants, antioxidant molecules and extracellular matrix, which create and determine a gut region-dependent neuronal environment in diabetes.
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Affiliation(s)
- Mária Bagyánszki
- Department of Physiology, Anatomy and Neuroscience, Faculty of Science and Informatics, University of Szeged, Szeged H-6726, Hungary
| | - Nikolett Bódi
- Department of Physiology, Anatomy and Neuroscience, Faculty of Science and Informatics, University of Szeged, Szeged H-6726, Hungary
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7
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Britzen-Laurent N, Weidinger C, Stürzl M. Contribution of Blood Vessel Activation, Remodeling and Barrier Function to Inflammatory Bowel Diseases. Int J Mol Sci 2023; 24:ijms24065517. [PMID: 36982601 PMCID: PMC10051397 DOI: 10.3390/ijms24065517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/09/2023] [Accepted: 03/10/2023] [Indexed: 03/17/2023] Open
Abstract
Inflammatory bowel diseases (IBDs) consist of a group of chronic inflammatory disorders with a complex etiology, which represent a clinical challenge due to their often therapy-refractory nature. In IBD, inflammation of the intestinal mucosa is characterized by strong and sustained leukocyte infiltration, resulting in the loss of epithelial barrier function and subsequent tissue destruction. This is accompanied by the activation and the massive remodeling of mucosal micro-vessels. The role of the gut vasculature in the induction and perpetuation of mucosal inflammation is receiving increasing recognition. While the vascular barrier is considered to offer protection against bacterial translocation and sepsis after the breakdown of the epithelial barrier, endothelium activation and angiogenesis are thought to promote inflammation. The present review examines the respective pathological contributions of the different phenotypical changes observed in the microvascular endothelium during IBD, and provides an overview of potential vessel-specific targeted therapy options for the treatment of IBD.
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Affiliation(s)
- Nathalie Britzen-Laurent
- Division of Surgical Research, Department of Surgery, Translational Research Center, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany
- Correspondence:
| | - Carl Weidinger
- Department of Gastroenterology, Infectious Diseases and Rheumatology, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, 12203 Berlin, Germany
| | - Michael Stürzl
- Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN), 91054 Erlangen, Germany
- Division of Molecular and Experimental Surgery, Translational Research Center, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), 91054 Erlangen, Germany
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8
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Di Tommaso N, Santopaolo F, Gasbarrini A, Ponziani FR. The Gut-Vascular Barrier as a New Protagonist in Intestinal and Extraintestinal Diseases. Int J Mol Sci 2023; 24:ijms24021470. [PMID: 36674986 PMCID: PMC9864173 DOI: 10.3390/ijms24021470] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/07/2023] [Accepted: 01/09/2023] [Indexed: 01/15/2023] Open
Abstract
The intestinal barrier, with its multiple layers, is the first line of defense between the outside world and the intestine. Its disruption, resulting in increased intestinal permeability, is a recognized pathogenic factor of intestinal and extra-intestinal diseases. The identification of a gut-vascular barrier (GVB), consisting of a structured endothelium below the epithelial layer, has led to new evidence on the etiology and management of diseases of the gut-liver axis and the gut-brain axis, with recent implications in oncology as well. The gut-brain axis is involved in several neuroinflammatory processes. In particular, the recent description of a choroid plexus vascular barrier regulating brain permeability under conditions of gut inflammation identifies the endothelium as a key regulator in maintaining tissue homeostasis and health.
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Affiliation(s)
- Natalia Di Tommaso
- Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy
| | - Francesco Santopaolo
- Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy
| | - Antonio Gasbarrini
- Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy
- Translational Medicine and Surgery Department, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Francesca Romana Ponziani
- Internal Medicine and Gastroenterology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 00168 Rome, Italy
- Translational Medicine and Surgery Department, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
- Correspondence:
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9
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Steiner CA, Cartwright IM, Taylor CT, Colgan SP. Hypoxia-inducible factor as a bridge between healthy barrier function, wound healing, and fibrosis. Am J Physiol Cell Physiol 2022; 323:C866-C878. [PMID: 35912990 PMCID: PMC9467472 DOI: 10.1152/ajpcell.00227.2022] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/07/2022] [Accepted: 07/23/2022] [Indexed: 11/22/2022]
Abstract
The healthy mammalian intestine is lined by a single layer of epithelial cells. These cells provide a selectively permeable barrier to luminal contents and normally do so in an efficient and effective manner. Barrier function in the healthy mucosa is provided via several mechanisms including epithelial junctional complexes, mucus production, as well as mucosal-derived antimicrobial proteins. As tissue metabolism is central to the maintenance of homeostasis in the mucosa, intestinal [Formula: see text] levels are uniquely low due to counter-current blood flow and the presence of the microbiota, resulting in the stabilization of the transcription factor hypoxia-inducible factor (HIF). Ongoing studies have revealed that HIF molds normal intestinal metabolism and is central to the coordination of barrier regulation during both homeostasis and active disease. During acute inflammation, HIF is central to controlling the rapid restitution of the epithelium consistent with normal wound healing responses. In contrast, HIF may also contribute to the fibrostenotic response associated with chronic, nonresolving inflammation. As such, HIF may function as a double-edged sword in the overall course of the inflammatory response. Here, we review recent literature on the contribution of HIF to mucosal barrier function, wound healing, and fibrosis.
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Affiliation(s)
- Calen A Steiner
- Division of Gastroenterology and Hepatology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
- Department of Medicine and the Mucosal Inflammation Program, University of Colorado School of Medicine, Aurora, Colorado
| | - Ian M Cartwright
- Division of Gastroenterology and Hepatology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
- Department of Medicine and the Mucosal Inflammation Program, University of Colorado School of Medicine, Aurora, Colorado
- Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, Colorado
| | - Cormac T Taylor
- School of Medicine, Conway Institute and Systems Biology Ireland, University College Dublin, Dublin, Ireland
| | - Sean P Colgan
- Division of Gastroenterology and Hepatology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
- Department of Medicine and the Mucosal Inflammation Program, University of Colorado School of Medicine, Aurora, Colorado
- Rocky Mountain Regional Veterans Affairs Medical Center, Aurora, Colorado
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10
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Lee EY, Ma E, Anand AJ, Chandran S. Pneumatosis coli in preterm neonates: Can they be managed more conservatively to maintain the intestinal milieu? BMJ Case Rep 2022; 15:e250274. [PMID: 35926914 PMCID: PMC9358942 DOI: 10.1136/bcr-2022-250274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Necrotising enterocolitis (NEC) is a severe gastrointestinal disease mostly in premature infants due to intestinal necrosis. The aetiology of NEC is multifactorial and includes gut immaturity, intestinal dysbiosis and exaggerated intestinal mucosal reactivity to microbial ligands. Radiographic evidence of pneumatosis intestinalis has been a critical feature for diagnosing NEC Bell stage ≥IIA and recommended treatment includes prolonged antibiotics (7-14 days) while off enteral feeds. Pneumatosis coli (Pcoli), a mild or benign form of NEC, is characterised by pneumatosis limited to the colon in an infant having haematochezia, negative septic screening and no systemic signs. We report two healthy preterm infants with haematochezia and colonic pneumatosis while on breast milk feeds. The sepsis screen was negative. A brief period of antibiotics and gut rest led to the spontaneous resolution of haematochezia and colonic pneumatosis, facilitating early enteral feeds. This case report emphasises the need to differentiate NEC from benign Pcoli.
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Affiliation(s)
- Elis Yuexian Lee
- Department fo Neonatology, KK Women's and Children's Hospital, Singapore
| | - Eric Ma
- Department fo Neonatology, KK Women's and Children's Hospital, Singapore
| | - Amudha Jayanthi Anand
- Department fo Neonatology, KK Women's and Children's Hospital, Singapore
- Paediatric Academic Clinical Programme, Duke NUS Medical School, Singapore
- Paediatric Academic Clinical Programme, Yong Loo Lin School of Medicine, Singapore
- Paediatric Academic Clinical Programme, Lee Kong Chian School of Medicine, Singapore
| | - Suresh Chandran
- Department fo Neonatology, KK Women's and Children's Hospital, Singapore
- Paediatric Academic Clinical Programme, Duke NUS Medical School, Singapore
- Paediatric Academic Clinical Programme, Yong Loo Lin School of Medicine, Singapore
- Paediatric Academic Clinical Programme, Lee Kong Chian School of Medicine, Singapore
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11
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Meisner JW, Kamran A, Staffa SJ, Mohammed S, Yasuda JL, Ngo P, Manfredi M, Zurakowski D, Jennings RW, Hamilton TE, Zendejas B. Qualitative features of esophageal fluorescence angiography and anastomotic outcomes in children. J Pediatr Surg 2022:S0022-3468(22)00455-9. [PMID: 35934523 DOI: 10.1016/j.jpedsurg.2022.07.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/29/2022] [Accepted: 07/06/2022] [Indexed: 10/17/2022]
Abstract
BACKGROUND Indocyanine green (ICG) is commonly used to assess perfusion, but quality defining features are lacking. We sought to establish qualitative features of esophageal ICG perfusion assessments, and develop an esophageal anastomotic scorecard to risk-stratify anastomotic outcomes. METHODS Single institution, retrospective analysis of children with an intraoperative ICG perfusion assessment of an esophageal anastomosis. Qualitative perfusion features were defined and a perfusion score developed. Associations between perfusion and clinical features with poor anastomotic outcomes (PAO, leak or refractory stricture) were evaluated with logistic and time-to-event analyses. Combining significant features, we developed and tested an esophageal anastomotic scorecard to stratify PAO risk. RESULTS From 2019 to 2021, 53 children (median age 7.4 months) underwent 55 esophageal anastomoses. Median (IQR) follow-up was 14 (10-19.9) months; mean (SD) perfusion score was 13.2 (3.4). Fifteen (27.3%) anastomoses experienced a PAO and had significantly lower mean perfusion scores (11.3 (3.3) vs 14.0 (3.2), p = 0.007). Unique ICG perfusion features, severe tension, and primary or rescue traction-induced esophageal lengthening [Foker] procedures were significantly associated with PAO on both logistic and Cox regression. The scorecard (range 0-7) included any Foker (+2), severe tension (+1), no arborization on either segment (+1), suture line hypoperfusion >twice expected width (+2), and segmental or global areas of hypoperfusion (+1). A scorecard cut-off >3 yielded a sensitivity of 73% and specificity of 93% (AUC 0.878 [95%CI 0.777 to 0.978]) in identifying a PAO. CONCLUSIONS A scoring system comprised of qualitative ICG perfusion features, tissue quality, and anastomotic tension can help risk-stratify esophageal anastomotic outcomes accurately. LEVELS OF EVIDENCE Diagnostic - II.
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Affiliation(s)
- Jay W Meisner
- Department of Surgery, Boston Children's Hospital, Harvard Medical School, Boston, MA, United States
| | - Ali Kamran
- Department of Surgery, Boston Children's Hospital, Harvard Medical School, Boston, MA, United States
| | - Steven J Staffa
- Department of Surgery, Boston Children's Hospital, Harvard Medical School, Boston, MA, United States; Department of Anesthesiology, Critical Care, and Pain Medicine, Boston Children's Hospital, Harvard Medical School, Boston, MA, United States
| | - Somala Mohammed
- Department of Surgery, Boston Children's Hospital, Harvard Medical School, Boston, MA, United States
| | - Jessica L Yasuda
- Department of Gastroenterology, Hepatology, and Nutrition, Boston Children's Hospital, Harvard Medical School, Boston, MA, United States
| | - Peter Ngo
- Department of Gastroenterology, Hepatology, and Nutrition, Boston Children's Hospital, Harvard Medical School, Boston, MA, United States
| | - Michael Manfredi
- Department of Gastroenterology, Hepatology, and Nutrition, Boston Children's Hospital, Harvard Medical School, Boston, MA, United States
| | - David Zurakowski
- Department of Surgery, Boston Children's Hospital, Harvard Medical School, Boston, MA, United States; Department of Anesthesiology, Critical Care, and Pain Medicine, Boston Children's Hospital, Harvard Medical School, Boston, MA, United States
| | - Russell W Jennings
- Department of Surgery, Boston Children's Hospital, Harvard Medical School, Boston, MA, United States
| | - Thomas E Hamilton
- Department of Surgery, Boston Children's Hospital, Harvard Medical School, Boston, MA, United States
| | - Benjamin Zendejas
- Department of Surgery, Boston Children's Hospital, Harvard Medical School, Boston, MA, United States.
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12
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Meng X, Liu H, Peng L, He W, Li S. Potential clinical applications of alpha‑ketoglutaric acid in diseases (Review). Mol Med Rep 2022; 25:151. [PMID: 35244187 DOI: 10.3892/mmr.2022.12667] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 02/11/2022] [Indexed: 11/06/2022] Open
Abstract
As an intermediate of the tricarboxylic acid cycle, also known as 2‑oxoglutarate, α‑ketoglutaric acid (AKG) plays an important role in maintaining physiological functions and cell metabolism. AKG is involved in both energy metabolism, and carbon and nitrogen metabolism; thus, exhibiting a variety of functions. Moreover, AKG plays an important role in various systems of the body. Results of previous research indicated that AKG may act as a regulator in the progression of a variety of diseases; thus, it exhibits potential as a novel drug for the clinical treatment of age‑related diseases. The present review aimed to summarize the latest research progress and potential clinical applications of AKG and provided novel directions and scope for future research.
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Affiliation(s)
- Xingqi Meng
- Clinical Anatomy and Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Huiqing Liu
- Clinical Anatomy and Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Lixuan Peng
- Clinical Anatomy and Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Weiguo He
- Clinical Anatomy and Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Suyun Li
- Clinical Anatomy and Reproductive Medicine Application Institute, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, P.R. China
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13
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Sadalla S, Lisotti A, Fuccio L, Fusaroli P. Colonoscopy-related colonic ischemia. World J Gastroenterol 2021; 27:7299-7310. [PMID: 34876790 PMCID: PMC8611204 DOI: 10.3748/wjg.v27.i42.7299] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 07/06/2021] [Accepted: 10/20/2021] [Indexed: 02/06/2023] Open
Abstract
Colonoscopy is a risk factor for colon ischemia. The colon is susceptible to ischemia due to its minor blood flow compared to other abdominal organs; the etiology of colon ischemia after colonoscopy is multifactorial. The causative mechanisms include splanchnic circulation impairment, bowel preparation, drugs used for sedation, bowel wall ischemia due to insufflation/barotrauma, and introduction of the endoscope. Gastroenterologists must be aware of this condition and its risk factors for risk minimization, early diagnosis, and proper treatment.
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Affiliation(s)
- Sinan Sadalla
- Unità Operativa Complessa di Gastroenterologia e Endoscopia Digestiva, Università di Bologna/ Ospedale di Imola, Imola (BO) 40024, Italy
| | - Andrea Lisotti
- Unità Operativa Complessa di Gastroenterologia e Endoscopia Digestiva, Università di Bologna/ Ospedale di Imola, Imola (BO) 40026, Italy
| | - Lorenzo Fuccio
- Divisione di Gastroenterologia, Dipartimento di Scienze Medico-Chirurgiche (DIMEC), IRCSS- Azienda Ospedaliero-Universitaria di Bologna, Bologna 40138, Italy
| | - Pietro Fusaroli
- Unità Operativa Complessa di Gastroenterologia e Endoscopia Digestiva, Università di Bologna/ Ospedale di Imola, Imola (BO) 40026, Italy
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14
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Thaker S, Pajot G, Mikolajczyk AE, Lipowska AM. Balloon Tamponade Utilization for Severe Esophagitis Causing Hemorrhagic Shock. Cureus 2021; 13:e17172. [PMID: 34548977 PMCID: PMC8437158 DOI: 10.7759/cureus.17172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/14/2021] [Indexed: 11/05/2022] Open
Abstract
Esophagitis causing upper gastrointestinal bleeding (UGIB) is associated with significant morbidity. We present a case report of two patients with hemorrhagic shock secondary to esophagitis. Both patients underwent esophagogastroduodenoscopy demonstrating severe bleeding pan-esophagitis complicated by hemodynamic instability. Balloon tamponade for hemostasis was performed with resultant hemodynamic improvement. Severe UGIB secondary to esophagitis is difficult to control, with a high risk of complications and limited available endoscopic therapies in extensive mucosal injury. Treatments such as angiography are ineffective due to collateralization and surgery carries high morbidity and mortality. Balloon tamponade provides a rescue option for severe, refractory UGIB secondary to esophagitis.
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Affiliation(s)
- Sarang Thaker
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Illinois at Chicago, Chicago, USA
| | - Gregory Pajot
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Illinois at Chicago, Chicago, USA
| | - Adam E Mikolajczyk
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Illinois at Chicago, Chicago, USA
| | - Anna M Lipowska
- Department of Medicine, Division of Gastroenterology and Hepatology, University of Illinois at Chicago, Chicago, USA
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15
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Mann MR, Kawzowicz M, Komosa AJ, Sherer YM, Łazarz DP, Loukas M, Tubbs RS, Pasternak A. The marginal artery of Drummond revisited: A systematic review. TRANSLATIONAL RESEARCH IN ANATOMY 2021. [DOI: 10.1016/j.tria.2021.100118] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
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16
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Adaptive constrained constructive optimisation for complex vascularisation processes. Sci Rep 2021; 11:6180. [PMID: 33731776 PMCID: PMC7969782 DOI: 10.1038/s41598-021-85434-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 02/26/2021] [Indexed: 11/09/2022] Open
Abstract
Mimicking angiogenetic processes in vascular territories acquires importance in the analysis of the multi-scale circulatory cascade and the coupling between blood flow and cell function. The present work extends, in several aspects, the Constrained Constructive Optimisation (CCO) algorithm to tackle complex automatic vascularisation tasks. The main extensions are based on the integration of adaptive optimisation criteria and multi-staged space-filling strategies which enhance the modelling capabilities of CCO for specific vascular architectures. Moreover, this vascular outgrowth can be performed either from scratch or from an existing network of vessels. Hence, the vascular territory is defined as a partition of vascular, avascular and carriage domains (the last one contains vessels but not terminals) allowing one to model complex vascular domains. In turn, the multi-staged space-filling approach allows one to delineate a sequence of biologically-inspired stages during the vascularisation process by exploiting different constraints, optimisation strategies and domain partitions stage by stage, improving the consistency with the architectural hierarchy observed in anatomical structures. With these features, the aDaptive CCO (DCCO) algorithm proposed here aims at improving the modelled network anatomy. The capabilities of the DCCO algorithm are assessed with a number of anatomically realistic scenarios.
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17
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Nassir CMNCM, Ghazali MM, Hashim S, Idris NS, Yuen LS, Hui WJ, Norman HH, Gau CH, Jayabalan N, Na Y, Feng L, Ong LK, Abdul Hamid H, Ahamed HN, Mustapha M. Diets and Cellular-Derived Microparticles: Weighing a Plausible Link With Cerebral Small Vessel Disease. Front Cardiovasc Med 2021; 8:632131. [PMID: 33718454 PMCID: PMC7943466 DOI: 10.3389/fcvm.2021.632131] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 01/19/2021] [Indexed: 12/24/2022] Open
Abstract
Cerebral small vessel disease (CSVD) represents a spectrum of pathological processes of various etiologies affecting the brain microcirculation that can trigger neuroinflammation and the subsequent neurodegenerative cascade. Prevalent with aging, CSVD is a recognized risk factor for stroke, vascular dementia, Alzheimer disease, and Parkinson disease. Despite being the most common neurodegenerative condition with cerebrocardiovascular axis, understanding about it remains poor. Interestingly, modifiable risk factors such as unhealthy diet including high intake of processed food, high-fat foods, and animal by-products are known to influence the non-neural peripheral events, such as in the gastrointestinal tract and cardiovascular stress through cellular inflammation and oxidation. One key outcome from such events, among others, includes the cellular activations that lead to elevated levels of endogenous cellular-derived circulating microparticles (MPs). MPs can be produced from various cellular origins including leukocytes, platelets, endothelial cells, microbiota, and microglia. MPs could act as microthrombogenic procoagulant that served as a plausible culprit for the vulnerable end-artery microcirculation in the brain as the end-organ leading to CSVD manifestations. However, little attention has been paid on the potential role of MPs in the onset and progression of CSVD spectrum. Corroboratively, the formation of MPs is known to be influenced by diet-induced cellular stress. Thus, this review aims to appraise the body of evidence on the dietary-related impacts on circulating MPs from non-neural peripheral origins that could serve as a plausible microthrombosis in CSVD manifestation as a precursor of neurodegeneration. Here, we elaborate on the pathomechanical features of MPs in health and disease states; relevance of dietary patterns on MP release; preclinical studies pertaining to diet-based MPs contribution to disease; MP level as putative surrogates for early disease biomarkers; and lastly, the potential of MPs manipulation with diet-based approach as a novel preventive measure for CSVD in an aging society worldwide.
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Affiliation(s)
| | - Mazira Mohamad Ghazali
- Department of Neurosciences, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - Sabarisah Hashim
- Department of Neurosciences, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - Nur Suhaila Idris
- Department of Family Medicine, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - Lee Si Yuen
- Department of Internal Medicine, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - Wong Jia Hui
- Neurobiology of Aging and Disease Laboratory, Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
| | - Haziq Hazman Norman
- Anatomy Unit, International Medical School (IMS), Management and Science University (MSU), Shah Alam, Malaysia
| | - Chuang Huei Gau
- Department of Psychology and Counselling, Faculty of Arts and Social Science, Universiti Tunku Abdul Rahman (UTAR), Kampar, Malaysia
| | - Nanthini Jayabalan
- Translational Neuroscience Lab, University of Queensland (UQ), Centre for Clinical Research, The University of Queensland, Herston, QLD, Australia
| | - Yuri Na
- Center for Functional Connectomics, Brain Science Institute, Korea Institute of Science and Technology (KIST), Seoul, South Korea
| | - Linqing Feng
- Center for Functional Connectomics, Brain Science Institute, Korea Institute of Science and Technology (KIST), Seoul, South Korea
| | - Lin Kooi Ong
- School of Pharmacy, Monash University Malaysia, Bandar Sunway, Malaysia
- School of Biomedical Sciences and Pharmacy, Priority Research Centre for Stroke and Brain Injury, University of Newcastle, Callaghan, NSW, Australia
- Hunter Medical Research Institute, New Lambton Heights, NSW, Australia
- Centre of Research Excellence Stroke Rehabilitation and Brain Recovery, National Health and Medical Research Council (NHMRC), Heidelberg, VIC, Australia
| | - Hafizah Abdul Hamid
- Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Haja Nazeer Ahamed
- Crescent School of Pharmacy, B.S. Abdur Rahman Crescent Institute of Science and Technology, Chennai, India
| | - Muzaimi Mustapha
- Department of Neurosciences, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
- Hospital Universiti Sains Malaysia, Jalan Raja Perempuan Zainab II, Kubang Kerian, Malaysia
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18
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Stalla FM, Astegiano M, Ribaldone DG, Saracco GM, Pellicano R. The small intestine: barrier, permeability and microbiota. Minerva Gastroenterol (Torino) 2020; 68:98-110. [PMID: 33267569 DOI: 10.23736/s2724-5985.20.02808-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
In recent years, there has been growing interest in the comprehension of the physiology of intestinal permeability and microbiota; and how these elements could influence the pathogenesis of diseases. The term intestinal permeability describes all the processes that allow the passage of molecules as water, electrolytes and nutrients through the intestinal barrier by the paracellular or the transcellular transport systems with several implications for self-tolerance and not-self immunity. An increased permeability might induce a more significant interaction of the immune system with unknown external antigens. This might favor the onset of several immune-related extra-intestinal diseases including coeliac disease, diabetes mellitus type 1, bronchial asthma and inflammatory bowel diseases. Furthermore, the intestinal permeability interacts every day with microbiota, the complex system of mutualistic inhabitants and commensal microorganisms living in the healthy gut. Microbiota is implicated in physiological functions by actively participating in digestion, absorption, synthesis of vitamins and protection from external aggressions. The critical site where these processes occur is the small intestine to which this updated review is dedicated. Understanding its anatomy, its barrier structure and permeability modulation and its microbiota composition is the essential skill to comprehend the complex pathogenesis of several - not only gastroenterological - diseases.
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Affiliation(s)
| | | | | | - Giorgio M Saracco
- Department of Medical Sciences, University of Turin, Turin, Italy.,Unit of Gastroenterology, Molinette Hospital, Turin, Italy
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19
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Henderson AR, Choi H, Lee E. Blood and Lymphatic Vasculatures On-Chip Platforms and Their Applications for Organ-Specific In Vitro Modeling. MICROMACHINES 2020; 11:E147. [PMID: 32013154 PMCID: PMC7074693 DOI: 10.3390/mi11020147] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 01/23/2020] [Accepted: 01/28/2020] [Indexed: 02/07/2023]
Abstract
The human circulatory system is divided into two complementary and different systems, the cardiovascular and the lymphatic system. The cardiovascular system is mainly concerned with providing nutrients to the body via blood and transporting wastes away from the tissues to be released from the body. The lymphatic system focuses on the transport of fluid, cells, and lipid from interstitial tissue spaces to lymph nodes and, ultimately, to the cardiovascular system, as well as helps coordinate interstitial fluid and lipid homeostasis and immune responses. In addition to having distinct structures from each other, each system also has organ-specific variations throughout the body and both systems play important roles in maintaining homeostasis. Dysfunction of either system leads to devastating and potentially fatal diseases, warranting accurate models of both blood and lymphatic vessels for better studies. As these models also require physiological flow (luminal and interstitial), extracellular matrix conditions, dimensionality, chemotactic biochemical gradient, and stiffness, to better reflect in vivo, three dimensional (3D) microfluidic (on-a-chip) devices are promising platforms to model human physiology and pathology. In this review, we discuss the heterogeneity of both blood and lymphatic vessels, as well as current in vitro models. We, then, explore the organ-specific features of each system with examples in the gut and the brain and the implications of dysfunction of either vasculature in these organs. We close the review with discussions on current in vitro models for specific diseases with an emphasis on on-chip techniques.
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Affiliation(s)
- Aria R. Henderson
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY 14853, USA;
| | - Hyoann Choi
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY 14853, USA;
| | - Esak Lee
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY 14853, USA;
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20
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Azumi M, Takeuchi M, Koseki Y, Kumagai M, Kobayashi Y, Takatsuna M, Yoshioka A, Yoshikawa S, Miura T, Terai S. The search, coagulation, and clipping (SCC) method prevents delayed bleeding after gastric endoscopic submucosal dissection. Gastric Cancer 2019; 22:567-575. [PMID: 30267178 PMCID: PMC6476836 DOI: 10.1007/s10120-018-0878-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 09/18/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND Delayed bleeding is an important complication after gastric endoscopic submucosal dissection (ESD). The search, coagulation, and clipping (SCC) method can be used to prevent delayed bleeding after ESD. However, its safety and efficacy are unclear. We compared the SCC method with post-ESD coagulation (PEC) to clarify the safety and efficacy of the SCC method for preventing delayed bleeding after gastric ESD. METHODS This retrospective study included 438 patients (478 lesions) who underwent gastric ESD. Multivariate logistic regression analysis was performed to identify the significant independent factors associated with delayed bleeding and we performed propensity-score matching (PSM) to reduce the effect of procedure-selection bias of SCC method. RESULTS Of the 438 patients, 216 underwent PEC and 222 underwent SCC. Delayed bleeding was significantly less common in the SCC than in the PEC (2.6% vs. 7.2%; P = 0.013). Among patients treated with antithrombotic therapy, the delayed bleeding rate was lower in the SCC group than in the PEC group; however, the difference was not significant (P = 0.15). The SCC method was found to be a significant independent factor for the prevention of delayed bleeding. PSM was performed in 156 patients in the PEC group and SCC group. There was a significant difference in the incidence of bleeding in the PEC and SCC groups (P = 0.013). No patient had perforation/bleeding associated with the SCC method. CONCLUSIONS Our findings suggest that the SCC method is a simple, safe, and effective approach for preventing delayed bleeding after gastric ESD.
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Affiliation(s)
- Motoi Azumi
- 0000 0004 1774 7290grid.416384.cDivision of Gastroenterology and Hepatology, Nagaoka Red Cross Hospital, 2-297-1, Chiaki, Nagaoka, Niigata 940-2085 Japan
| | - Manabu Takeuchi
- 0000 0004 1774 7290grid.416384.cDivision of Gastroenterology and Hepatology, Nagaoka Red Cross Hospital, 2-297-1, Chiaki, Nagaoka, Niigata 940-2085 Japan
| | - Youhei Koseki
- 0000 0004 1774 7290grid.416384.cDivision of Gastroenterology and Hepatology, Nagaoka Red Cross Hospital, 2-297-1, Chiaki, Nagaoka, Niigata 940-2085 Japan
| | - Masaru Kumagai
- 0000 0004 1774 7290grid.416384.cDivision of Gastroenterology and Hepatology, Nagaoka Red Cross Hospital, 2-297-1, Chiaki, Nagaoka, Niigata 940-2085 Japan
| | - Yoko Kobayashi
- 0000 0004 1774 7290grid.416384.cDivision of Gastroenterology and Hepatology, Nagaoka Red Cross Hospital, 2-297-1, Chiaki, Nagaoka, Niigata 940-2085 Japan
| | - Masafumi Takatsuna
- 0000 0004 1774 7290grid.416384.cDivision of Gastroenterology and Hepatology, Nagaoka Red Cross Hospital, 2-297-1, Chiaki, Nagaoka, Niigata 940-2085 Japan
| | - Aiko Yoshioka
- 0000 0004 1774 7290grid.416384.cDivision of Gastroenterology and Hepatology, Nagaoka Red Cross Hospital, 2-297-1, Chiaki, Nagaoka, Niigata 940-2085 Japan
| | - Seiichi Yoshikawa
- 0000 0004 1774 7290grid.416384.cDivision of Gastroenterology and Hepatology, Nagaoka Red Cross Hospital, 2-297-1, Chiaki, Nagaoka, Niigata 940-2085 Japan
| | - Tsutomu Miura
- 0000 0004 1774 7290grid.416384.cDivision of Gastroenterology and Hepatology, Nagaoka Red Cross Hospital, 2-297-1, Chiaki, Nagaoka, Niigata 940-2085 Japan
| | - Shuji Terai
- 0000 0001 0671 5144grid.260975.fDivision of Gastroenterology and Hepatology, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
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21
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Thamtorawat S, Nadarajan C, Rojwatcharapibarn S. Essential vascular anatomy and choice of embolic materials in gastrointestinal bleeding. INTERNATIONAL JOURNAL OF GASTROINTESTINAL INTERVENTION 2018. [DOI: 10.18528/gii180028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Somrach Thamtorawat
- Department of Radiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Chandran Nadarajan
- Department of Radiology, School of Medical Sciences, Health Campus, Universiti Sains Malaysia, Kelantan, Malaysia
| | - Satit Rojwatcharapibarn
- Department of Radiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
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22
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Wasicek PJ, Shanmuganathan K, Teeter WA, Gamble WB, Hu P, Stein DM, Scalea TM, Brenner ML. Assessment of Blood Flow Patterns Distal to Aortic Occlusion Using CT in Patients with Resuscitative Endovascular Balloon Occlusion of the Aorta. J Am Coll Surg 2017; 226:294-308. [PMID: 29248608 DOI: 10.1016/j.jamcollsurg.2017.12.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 12/03/2017] [Accepted: 12/03/2017] [Indexed: 11/25/2022]
Abstract
BACKGROUND Resuscitative endovascular balloon occlusion of the aorta (REBOA) is used to decrease hemorrhage below the level of aortic occlusion (AO); however, the amount of collateral blood flow below the level of occlusion is unknown. Our aim was to investigate blood flow patterns during complete AO in patients who underwent CT scan after REBOA. STUDY DESIGN Between February 2013 and January 2017, patients who received REBOA and underwent CT scan with intravenous contrast during full AO were included. Patients were excluded if they had a CT scan performed with the balloon partially or fully deflated. RESULTS Nine patients (8 men) were included; all had blunt trauma. Mean Injury Severity Score (±SD) was 48 ± 8 and mean age was 45 ± 19 years. Four had supra-celiac AO, and 5 had infra-renal AO. Arterial contrast enhancement was noted below the level of AO in all patients, and distal to REBOA sheath placement in 5. Collateralization from arteries above and below the AO was identified in all patients. Contrast extravasation distal to AO was identified in 4 patients, and hematomas in 8. Distal vascular enhancement patterns varied by level of AO and contrast administration site. CONCLUSIONS Aortic occlusion appears to dramatically decrease, but does not completely impede, distal perfusion during REBOA due to multiple pathways of collateralization. Active extravasation and hematomas can still be detected in the setting of full AO, with purposefully timed contrast and image acquisition. Blood flow persists below the level of both the AO and in-dwelling sheath. Dynamic flow studies are needed to determine the contribution of AO and sheath placement to distal tissue ischemia.
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Affiliation(s)
- Philip J Wasicek
- Program in Trauma/Critical Care RA Cowley Shock Trauma Center, University of Maryland School of Medicine, Baltimore, MD.
| | | | - William A Teeter
- Program in Trauma/Critical Care RA Cowley Shock Trauma Center, University of Maryland School of Medicine, Baltimore, MD
| | - William B Gamble
- Program in Trauma/Critical Care RA Cowley Shock Trauma Center, University of Maryland School of Medicine, Baltimore, MD
| | - Peter Hu
- Program in Trauma/Critical Care RA Cowley Shock Trauma Center, University of Maryland School of Medicine, Baltimore, MD
| | - Deborah M Stein
- Program in Trauma/Critical Care RA Cowley Shock Trauma Center, University of Maryland School of Medicine, Baltimore, MD
| | - Thomas M Scalea
- Program in Trauma/Critical Care RA Cowley Shock Trauma Center, University of Maryland School of Medicine, Baltimore, MD
| | - Megan L Brenner
- Program in Trauma/Critical Care RA Cowley Shock Trauma Center, University of Maryland School of Medicine, Baltimore, MD
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23
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Granger DN, Holm L, Kvietys P. The Gastrointestinal Circulation: Physiology and Pathophysiology. Compr Physiol 2016; 5:1541-83. [PMID: 26140727 DOI: 10.1002/cphy.c150007] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The gastrointestinal (GI) circulation receives a large fraction of cardiac output and this increases following ingestion of a meal. While blood flow regulation is not the intense phenomenon noted in other vascular beds, the combined responses of blood flow, and capillary oxygen exchange help ensure a level of tissue oxygenation that is commensurate with organ metabolism and function. This is evidenced in the vascular responses of the stomach to increased acid production and in intestine during periods of enhanced nutrient absorption. Complimenting the metabolic vasoregulation is a strong myogenic response that contributes to basal vascular tone and to the responses elicited by changes in intravascular pressure. The GI circulation also contributes to a mucosal defense mechanism that protects against excessive damage to the epithelial lining following ingestion of toxins and/or noxious agents. Profound reductions in GI blood flow are evidenced in certain physiological (strenuous exercise) and pathological (hemorrhage) conditions, while some disease states (e.g., chronic portal hypertension) are associated with a hyperdynamic circulation. The sacrificial nature of GI blood flow is essential for ensuring adequate perfusion of vital organs during periods of whole body stress. The restoration of blood flow (reperfusion) to GI organs following ischemia elicits an exaggerated tissue injury response that reflects the potential of this organ system to generate reactive oxygen species and to mount an inflammatory response. Human and animal studies of inflammatory bowel disease have also revealed a contribution of the vasculature to the initiation and perpetuation of the tissue inflammation and associated injury response.
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Affiliation(s)
- D Neil Granger
- Department of Molecular and Cellular Physiology, LSU Health Science Center-Shreveport, Shreveport, Louisiana, USA
| | - Lena Holm
- Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden
| | - Peter Kvietys
- Department of Physiological Sciences, College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
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24
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The Human Colon Is More Resistant to Ischemia-reperfusion-induced Tissue Damage Than the Small Intestine: An Observational Study. Ann Surg 2015; 262:304-11. [PMID: 25915914 DOI: 10.1097/sla.0000000000001131] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVE Aim of this study was to draw comparisons between human colonic and jejunal ischemia-reperfusion sequelae in a human in vivo experimental model. BACKGROUND In patients, colonic ischemia-reperfusion generally has a milder course than small intestinal ischemia-reperfusion. It is unclear which pathophysiologic processes are responsible for this difference. METHODS In 10 patients undergoing colonic surgery and 10 patients undergoing pancreaticoduodenectomy, 6 cm colon or jejunum was isolated and exposed to 60 minutes ischemia followed by various reperfusion periods. Morphology (hematoxylin and eosin), apoptosis (M30), tight junctions (zonula occludens 1), and neutrophil influx (myeloperoxidase) were assessed using immunohistochemistry. Quantitative polymerase chain reaction and enzyme-linked immunosorbent assay were performed for interleukin-6 and tumor necrosis factor-α. RESULTS Hematoxylin and eosin staining revealed intact colonic epithelial lining, but extensive damage in jejunal villus tips after 60 minutes ischemia. After reperfusion, the colonic epithelial lining was not affected, whereas the jejunal epithelium was seriously damaged. Colonic apoptosis was limited to scattered cells in surface epithelium, whereas apoptosis was clearly observed in jejunal villi and crypts, (42 times more M30 positivity compared with colon, P < 0.01). Neutrophil influx and increased tumor necrosis factor-α mRNA expression were observed in jejunum after 30 and 120 minutes of reperfusion (P < 0.05). Interleukin-6 mRNA expression was increased in jejunum after 120 minutes of reperfusion (3.6-fold increase, P < 0.05), whereas interleukin-6 protein expression was increased in both colon (1.5-fold increase, P < 0.05) and small intestine (1.5-fold increase, P < 0.05) after 30 and 120 minutes of reperfusion. CONCLUSIONS Human colon is less susceptible to IR-induced tissue injury than small intestine.
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Soffers JHM, Hikspoors JPJM, Mekonen HK, Koehler SE, Lamers WH. The growth pattern of the human intestine and its mesentery. BMC DEVELOPMENTAL BIOLOGY 2015; 15:31. [PMID: 26297675 PMCID: PMC4546136 DOI: 10.1186/s12861-015-0081-x] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Accepted: 10/30/2014] [Indexed: 12/11/2022]
Abstract
BACKGROUND It remains unclear to what extent midgut rotation determines human intestinal topography and pathology. We reinvestigated the midgut during its looping and herniation phases of development, using novel 3D visualization techniques. RESULTS We distinguished 3 generations of midgut loops. The topography of primary and secondary loops was constant, but that of tertiary loops not. The orientation of the primary loop changed from sagittal to transverse due to the descent of ventral structures in a body with a still helical body axis. The 1st secondary loop (duodenum, proximal jejunum) developed intraabdominally towards a left-sided position. The 2nd secondary loop (distal jejunum) assumed a left-sided position inside the hernia before returning, while the 3rd and 4th secondary loops retained near-midline positions. Intestinal return into the abdomen resembled a backward sliding movement. Only after return, the 4th secondary loop (distal ileum, cecum) rapidly "slid" into the right lower abdomen. The seemingly random position of the tertiary small-intestinal loops may have a biomechanical origin. CONCLUSIONS The interpretation of "intestinal rotation" as a mechanistic rather than a descriptive concept underlies much of the confusion accompanying the physiological herniation. We argue, instead, that the concept of "en-bloc rotation" of the developing midgut is a fallacy of schematic drawings. Primary, secondary and tertiary loops arise in a hierarchical fashion. The predictable position and growth of secondary loops is pre-patterned and determines adult intestinal topography. We hypothesize based on published accounts that malrotations result from stunted development of secondary loops.
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Affiliation(s)
- Jelly H M Soffers
- Department of Anatomy & Embryology, Maastricht University, P.O. Box 616, 6200 MD, Maastricht, The Netherlands.
| | - Jill P J M Hikspoors
- Department of Anatomy & Embryology, Maastricht University, P.O. Box 616, 6200 MD, Maastricht, The Netherlands.
| | - Hayelom K Mekonen
- Department of Anatomy & Embryology, Maastricht University, P.O. Box 616, 6200 MD, Maastricht, The Netherlands.
| | - S Eleonore Koehler
- Department of Anatomy & Embryology, Maastricht University, P.O. Box 616, 6200 MD, Maastricht, The Netherlands.
| | - Wouter H Lamers
- Department of Anatomy & Embryology, Maastricht University, P.O. Box 616, 6200 MD, Maastricht, The Netherlands.
- Tytgat Institute for Liver and Intestinal Research, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
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Gurol-Urganci I, Cromwell DA, Mahmood TA, van der Meulen JH, Templeton A. A population-based cohort study of the effect of Caesarean section on subsequent fertility. Hum Reprod 2014; 29:1320-6. [DOI: 10.1093/humrep/deu057] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Delalande JM, Natarajan D, Vernay B, Finlay M, Ruhrberg C, Thapar N, Burns AJ. Vascularisation is not necessary for gut colonisation by enteric neural crest cells. Dev Biol 2013; 385:220-9. [PMID: 24262984 PMCID: PMC3928993 DOI: 10.1016/j.ydbio.2013.11.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Revised: 11/04/2013] [Accepted: 11/08/2013] [Indexed: 12/20/2022]
Abstract
The vasculature and nervous system share striking similarities in their networked, tree-like architecture and in the way they are super-imposed in mature organs. It has previously been suggested that the intestinal microvasculature network directs the migration of enteric neural crest cells (ENCC) along the gut to promote the formation of the enteric nervous system (ENS). To investigate the inter-relationship of migrating ENCC, ENS formation and gut vascular development we combined fate-mapping of ENCC with immunolabelling and intravascular dye injection to visualise nascent blood vessel networks. We found that the enteric and vascular networks initially had very distinct patterns of development. In the foregut, ENCC migrated through areas devoid of established vascular networks. In vessel-rich areas, such as the midgut and hindgut, the distribution of migrating ENCC did not support the idea that these cells followed a pre-established vascular network. Moreover, when gut vascular development was impaired, either genetically in Vegfa(120/120) or Tie2-Cre;Nrp1(fl/-) mice or using an in vitro Wnt1-Cre;Rosa26(Yfp/+) mouse model of ENS development, ENCC still colonised the entire length of the gut, including the terminal hindgut. These results demonstrate that blood vessel networks are not necessary to guide migrating ENCC during ENS development. Conversely, in miRet(51) mice, which lack ENS in the hindgut, the vascular network in this region appeared to be normal suggesting that in early development both networks form independently of each other.
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Affiliation(s)
- Jean-Marie Delalande
- Neural Development Unit, UCL Institute of Child Health, 30 Guilford Street, London WC1N 1EH, United Kingdom
| | - Dipa Natarajan
- Neural Development Unit, UCL Institute of Child Health, 30 Guilford Street, London WC1N 1EH, United Kingdom
| | - Bertrand Vernay
- Neural Development Unit, UCL Institute of Child Health, 30 Guilford Street, London WC1N 1EH, United Kingdom
| | - Malcolm Finlay
- UCL Institute of Ophthalmology, 11-43 Bath Street, London EC1V 9EL, United Kingdom
| | - Christiana Ruhrberg
- UCL Institute of Ophthalmology, 11-43 Bath Street, London EC1V 9EL, United Kingdom
| | - Nikhil Thapar
- Neural Development Unit, UCL Institute of Child Health, 30 Guilford Street, London WC1N 1EH, United Kingdom
| | - Alan J Burns
- Neural Development Unit, UCL Institute of Child Health, 30 Guilford Street, London WC1N 1EH, United Kingdom; Department of Clinical Genetics, The Erasmus University Medical Center, Rotterdam, The Netherlands.
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Pillai U, Roopkiranjot K, Lakshminarayan N, Balabhadrapatruni K, Gebregeorgis W, Kissner P. Downhill varices secondary to HeRO graft-related SVC syndrome. Semin Dial 2013; 26:E47-9. [PMID: 23551196 DOI: 10.1111/sdi.12078] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Tunneled hemodialysis catheters are well-documented causes of benign central vein stenosis, which can be associated with proximal or downhill esophageal varices due to shunting of blood flow from the upper portion of the body through the esophageal venous plexuses. A majority of these cases remain asymptomatic. As a result, studies are largely limited to symptomatic patients, with incidence rates ranging from 16% to 29%. Recently, Hemodialysis Reliable Outflow (HeRO) graft has been introduced as an effective alternate hemodialysis access in catheter-dependent patients, especially in the presence of significant central venous occlusion. It differs from a conventional arteriovenous graft (AVG) by the fact that its venous outflow end is in the right atrium via one of the central veins, bypassing any significant occlusion upstream. Lower intervention rates and reduced incidence of bacteremia make it comparable to conventional tunneled catheters. However, the incidence of central vein occlusion and associated complications with HeRO grafts is unknown. We present the first case of gastrointestinal bleeding from downhill esophageal varices secondary to HeRO-graft-related SVC occlusion.
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Affiliation(s)
- Unnikrishnan Pillai
- Department of Nephrology, Harper Pro Building, Wayne State University, Detroit, Michigan
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Postprocedural combined treatment using the coagulation plus artery-selective clipping (2C) method for the prevention of delayed bleeding after ESD. Surg Endosc 2012; 27:1292-301. [PMID: 23232998 DOI: 10.1007/s00464-012-2600-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2012] [Accepted: 09/17/2012] [Indexed: 02/06/2023]
Abstract
BACKGROUND The incidence of delayed bleeding after endoscopic submucosal dissection (ESD) for gastric neoplasms is reported to be approximately 5 %. We examined whether postprocedural combined treatment using the coagulation plus artery-selective clipping (2C) method is a useful measure for preventing delayed bleeding after ESD. METHODS A total of 234 gastric epithelial neoplasms were treated from June 2007 to May 2012. Post-ESD coagulation (PEC) and clipping for part of the vessels was performed for 154 lesions from June 2007 to June 2010. A total of 80 lesions were treated using the 2C method from July 2010 to May 2012. During ESD, the locations of the arteries were recorded on a schematic diagram of the lesion. Arteries were defined as regions of arterial bleeding that required coagulation or apparent arteries in which preventive coagulation was performed. When ESD was completed, soft coagulation was performed for arteries in the resection area using hemostatic forceps, followed by arterial clipping for additional strength. Coagulation also was performed continuously for visible vessels in the resection area. This was a retrospective study. The incidence rates of delayed bleeding after ESD, as evidenced by hematemesis or melena, or the presence of anemia (decline in Hb >2 g/dl) that required emergency endoscopy were recorded. RESULTS Delayed bleeding occurred in 7 (4.5 %) of the 154 cases treated using PEC and in 1 (1.3 %) of the 80 cases treated using the 2C method. The mean time required for the 2C method was 15.0 ± 7.0 min (range, 5-44 min). The mean number of clippings per lesion was 3.8 ± 2.8 (range, 0-13). Almost all clips fell off within 2 months of the procedure. CONCLUSIONS Coagulation plus artery-selective clipping (the 2C method) of post-ESD ulcers might effectively reduce the incidence of delayed bleeding after ESD for gastric neoplasms.
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Lovisetto F, Finocchiaro De Lorenzi G, Stancampiano P, Corradini C, De Cesare F, Geraci O, Manzi M, Arceci F. Thrombosis of celiacomesenteric trunk: Report of a case. World J Gastroenterol 2012; 18:3917-20. [PMID: 22876046 PMCID: PMC3413066 DOI: 10.3748/wjg.v18.i29.3917] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2011] [Revised: 02/28/2012] [Accepted: 03/20/2012] [Indexed: 02/06/2023] Open
Abstract
Here we present the case of a 79-year-old woman who complained of acute abdominal pain, vomiting and diarrhoea. Laboratory exams demonstrated a severe metabolic imbalance. Abdominal X-rays showed bowel overdistension and pneumatosis of the stomach wall. Abdominal tomography revealed infarction of the stomach, duodenum and small bowel due to thrombosis of the celiacomesenteric trunk. Exploratory laparotomy revealed ischemia of the liver, spleen infarction and necrosis of the gastro-intestinal tube (from the stomach up to the first third of the transverse colon). No further surgical procedures were performed. The patient died the following day. To our knowledge, this is the first reported case about severe gastro-intestinal ischemia due to thrombosis of the celiacomesenteric trunk, a rare anatomic variation of the gastrointestinal vascularisation.
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Analysis of delayed bleeding after endoscopic submucosal dissection for gastric epithelial neoplasms. Gastroenterol Res Pract 2012; 2012:875323. [PMID: 22536221 PMCID: PMC3296301 DOI: 10.1155/2012/875323] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2011] [Accepted: 11/03/2011] [Indexed: 12/13/2022] Open
Abstract
Aim. Delayed bleeding after endoscopic submucosal dissection (ESD) for gastric epithelial neoplasms is a major complication. We investigated factors related to post-ESD bleeding to identify preventive measures. Methods. The study included 161 gastric epithelial neoplasms in 142 patients from June 2007 to September 2010. Post-ESD bleeding was defined as an ulcer with active bleeding or apparent exposed vessels diagnosed by an emergency endoscopy or a planned follow-up endoscopy. We analyzed associations between bleeding and the following factors: age, sex, morphology, pathology, tumor depth, ulcer presence/absence, location, size of the resected lesion, duration of the procedure, the number of times bleeding occurred during ESD, and the use of anticoagulants and/or antiplatelet drugs. Subsequently, we examined characteristics of bleeding cases. Results. Post-ESD bleeding occurred in 21 lesions. Univariate analysis of these cases showed that ulcer presence/absence (P < 0.001), middle or lower third lesions (P = 0.036), circumference (P = 0.014), and a post-ESD ulcer with an extended lesser curve (P = 0.009) were significant predictors of bleeding. Multivariate analysis showed that ulcer presence/absence (OR 9.73, 95% CI 2.28–41.53) was the only significant predictor. Conclusion. Ulcer presence/absence was considered the most significant predictor of post-ESD bleeding.
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Johnson JO. Diagnosis of Acute Gastrointestinal Hemorrhage and Acute Mesenteric Ischemia in the Era of Multi-Detector Row CT. Radiol Clin North Am 2012; 50:173-82. [DOI: 10.1016/j.rcl.2011.09.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Gbassi GK, Vandamme T, Yolou FS, Marchioni E. In vitro effects of pH, bile salts and enzymes on the release and viability of encapsulated Lactobacillus plantarum strains in a gastrointestinal tract model. Int Dairy J 2011. [DOI: 10.1016/j.idairyj.2010.09.006] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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A morphometric study concerning the branching points of the main arteries in humans: relationships and correlations. Ann Anat 2010; 193:86-99. [PMID: 21169000 DOI: 10.1016/j.aanat.2010.10.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2010] [Revised: 09/18/2010] [Accepted: 10/04/2010] [Indexed: 12/11/2022]
Abstract
An adequate quantity of data on the branching points and important arterial segments of the main arteries in humans is missing. Moreover, a suitable data collection and thereby observed correlations might provide some important clues relating to angiogenesis issues. Thus, we chose to examine in sixty-two embalmed human cadavers of Hellenic origin: The level and angles of the branching points did not differ substantially from similar data, mentioned in the literature. Our results revealed that symmetry exists between the limbs and the aortic length and the branching positions of the abdominal aorta. The aortic length is negatively related to the length of both common iliac arteries. The lengths of the celiac and the brachiocephalic artery (correlated weakly with one another) presented fewer correlations, while the segment between the inferior mesenteric and the celiac artery was correlated with other segments from different locations mainly on the right side. This last distance, the aortic length, the distance between the celiac and inferior mesenteric arteries, the length of both common femoral arteries differed significantly according to gender, independently of body length and height. Our data support the view that the final position and length of the arteries might be due to the location of the corresponding viscera during angiogenesis, to the body length and height and to some (hypothetical) elongation angiogenetic factors.
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Esophageal Necrosis After Endoprosthesis for Ruptured Thoracoabdominal Aneurysm Type I: Can Long-Segment Stent Grafting of the Thoracoabdominal Aorta Induce Transmural Necrosis? Ann Vasc Surg 2010; 24:1137.e7-12. [DOI: 10.1016/j.avsg.2010.04.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2010] [Revised: 04/01/2010] [Accepted: 04/12/2010] [Indexed: 11/23/2022]
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Geometric Variability of the Abdominal Aorta and Its Major Peripheral Branches. Ann Biomed Eng 2010; 38:824-40. [DOI: 10.1007/s10439-010-9925-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2009] [Accepted: 01/07/2010] [Indexed: 10/20/2022]
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Abstract
LEARNING OBJECTIVES Learning objectives of this paper are to review and to summarize the pathogenesis of bowel ischemia and to describe its clinical, pathological, and radiological manifestations. BACKGROUND Bowel ischemia is a common disorder produced by several causes, and it shows various clinical presentations connected with an high mortality. With the increase in average life expectancy, bowel ischemia represents one of the most threatening abdominal conditions in elderly patients. In the last decade, computed tomography has tremendously altered the diagnostic approach to bowel ischemia also influencing the therapeutic approach in the current practice. IMAGING FINDINGS Computed tomographic imaging findings include bowel wall thickening, portal venous gas, intramural pneumatosis, engorgement of mesenteric veins, loss or increase of bowel wall enhancement, and infarction of other abdominal organs. CONCLUSIONS Bowel ischemia shows a broad spectrum of radiological manifestations, and regardless of the primary causes, it produces similar radiological features. Bowel ischemia may simulate cancer or inflammatory conditions; so it is a mandatory tight integration between radiological and clinical signs.
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Ferrari R, De Cecco CN, Iafrate F, Paolantonio P, Rengo M, Laghi A. Anatomical variations of the coeliac trunk and the mesenteric arteries evaluated with 64-row CT angiography. Radiol Med 2007; 112:988-98. [PMID: 17952680 DOI: 10.1007/s11547-007-0200-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2006] [Accepted: 12/21/2006] [Indexed: 10/22/2022]
Abstract
PURPOSE This study was undertaken to evaluate the accuracy of 64-row computed tomography angiography (CTA) in the study of vascular anatomy by assessing the incidence of anatomical variations of the origin of the coeliac trunk, mesenteric arteries and collateral branches. MATERIALS AND METHODS Sixty patients were evaluated with 64-row CTA (VCT, General Electric Healthcare, Milwaukee, WI, USA) with a collimation of 0.625 mm after the injection of iodinated nonionic contrast material (4 ml/s). Exclusion criteria were the presence of any pathological condition likely to affect normal vascular anatomy. RESULTS The coeliac trunk had a normal trifurcation in 56.7% of cases. The common hepatic artery was normal in 60% of patients. The inferior pancreaticoduodenal arteries were either absent or not assessable in 8.3% of cases and there was a double trunk in 5%, a common trunk in 83.3% and a single vessel in 3.3%. The number of jejunal and ileal arteries ranged from a minimum of six to a maximum of 13 (mean value 8.7+/-1.34). The Riolan arcade was assessable in 31.7% and developed in 68.4% of these. CONCLUSIONS The 64-row CTA enables visualisation of small vessels and accessory arteries that are difficult to identify with other techniques. The technique's high sensitivity allowed us to observe that the prevalence of vascular abnormalities is higher than that reported in the literature.
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Affiliation(s)
- R Ferrari
- Department of Radiological Sciences, University of Rome La Sapienza, Polo Pontino, I.C.O.T. Via Franco Faggiana 34, I-04100, Latina, and St. Andrea Hospital, Rome, Italy
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Sakorafas GH, Zouros E, Peros G. Applied vascular anatomy of the colon and rectum: clinical implications for the surgical oncologist. Surg Oncol 2007; 15:243-55. [PMID: 17531744 DOI: 10.1016/j.suronc.2007.03.002] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2007] [Revised: 02/23/2007] [Accepted: 03/14/2007] [Indexed: 10/23/2022]
Abstract
Surgery remains the most radical method of treatment of many solid tumors, including colorectal cancer; in these tumors, surgery is the only method that can offer the chance of cure. To avoid early postoperative morbidity (mainly, anastomotic leak) and to achieve good long-term results (low incidence of tumor recurrence, long overall and disease-free survival, and optimal quality of life), the surgeon should have an in-depth knowledge of vascular anatomy of the colon and rectum. This essential requirement is based on the fact that the actual course followed by lymph fluid drainage from any part of the colon/rectum is determined by its blood supply; therefore, the extent of resection for colorectal cancer follows the principles of blood supply and lymphatic drainage. Knowledge of the colorectal vascular anatomy and its variations is of vital importance in the planning of radical surgical treatment and in appropriately performing colorectal resections, particularly in the patient who underwent in the past colectomy or aortic surgery that has changed the usual pattern of collateral blood supply to the colon. This review summarizes currently available data regarding vascular anatomy of the colon and rectum, from a surgical perspective.
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Affiliation(s)
- George H Sakorafas
- 4th Department of Surgery, Athens University, Medical School, Attikon University Hospital, Athens, Greece.
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Bilbao Jaureguízar JI, Vivas Pérez I, Cano Rafart D, Martínez de la Cuesta A. Imaging and Intervention in Gastrointestinal Hemorrhage and Ischemia. Emerg Radiol 2007. [DOI: 10.1007/978-3-540-68908-9_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Pennington N, Soames RW. The anterior visceral branches of the abdominal aorta and their relationship to the renal arteries. Surg Radiol Anat 2005; 27:395-403. [PMID: 16177834 DOI: 10.1007/s00276-005-0026-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2004] [Accepted: 06/08/2005] [Indexed: 10/25/2022]
Abstract
Variations in the anatomy of the abdominal aorta and its branches are of interest as vessel geometry not only determines flow dynamics, but is also crucial in the pathogenesis of vascular disease. The relationship between the anterior visceral and renal arteries is important when undertaking diagnostic arteriography and endovascular interventions. To examine these relationships, the length of the abdominal aorta was determined and measurements taken of the position of origin of the celiac artery, superior mesenteric artery (SMA), inferior mesenteric artery (IMA) and renal arteries, as well as the three-dimensional projection of each vessel from the aorta. The mean level of bifurcation of the aorta was at the lower third of the body of L4, with the celiac artery, SMA, renal arteries and IMA arising at the level of the T12/L1 intervertebral disc, upper third of the body of L1, lower third of the body of L1 and lower third of the body of L3, respectively. The horizontal projection of the celiac artery, SMA and IMA was to the left of the midline; in the sagittal plane, the celiac artery and SMA projected anteriorly and the IMA posteriorly; in the coronal plane all vessels projected inferiorly, with the SMA to the right and the IMA to the left. The celiac artery, SMA and both renal arteries all arise from the proximal half of the abdominal aorta within 45 mm of each other, with the origins of the renal arteries being remarkably consistent. It is concluded that the celiac artery and SMA are both useful landmarks for determining the position of the renal arteries.
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Affiliation(s)
- Neil Pennington
- School of Biomedical Sciences, University of Leeds, Leeds, LS2 9JT, UK
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Schoots IG, Levi MM, Reekers JA, Lameris JS, van Gulik TM. Thrombolytic therapy for acute superior mesenteric artery occlusion. J Vasc Interv Radiol 2005; 16:317-29. [PMID: 15758127 DOI: 10.1097/01.rvi.0000141719.24321.0b] [Citation(s) in RCA: 119] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The aim of this review is to evaluate thrombolytic therapy for acute superior mesenteric artery occlusion as an alternative or adjunctive treatment modality to surgical therapy and to provide current knowledge for timely and informed decisions regarding treatment of acute mesenteric ischemia. A systematic analysis of the available literature from 1966 to 2003 regarding thrombolytic therapy for superior mesenteric artery thromboembolism was performed. A total of 20 case reports and seven small series covered 48 patients with acute superior mesenteric artery thromboembolism. In the herein reviewed series, thrombolytic therapy of acute superior mesenteric artery thromboembolism resulted in angiographic resolution of the thromboembolism in 43 patients, in clinical success without requiring additional surgical intervention in 30 patients, and in survival in 43 patients, with similar complication rates as in thrombolytic treatment of peripheral vascular occlusions. Remission of abdominal pain during the first few hours of treatment formed the most important indicator of therapeutic success. Insufficient evidence from reviewed literature is available to determine the relative effectiveness and safety of thrombolytic treatment for acute superior mesenteric artery thromboembolism; however, initial results appear to be promising. Thrombolytic therapy can be effective relatively quickly, may obviate surgery, and has the potential to resolve the clot completely. In some cases it can be used as an alternative or neo-adjunctive treatment modality to surgery. A treatment guideline for thrombolysis of acute superior mesenteric artery thromboembolism should be developed.
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Affiliation(s)
- Ivo G Schoots
- Department of Surgery, Academic Medical Center, University of Amsterdam, Department of Surgery, IWO-1-155, Meibergdreef 9, 1105AZ, Amsterdam, The Netherlands.
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Abstract
Bowel ischemia may be caused by many conditions and manifest with typical or atypical and specific or nonspecific clinical, laboratory, and radiologic findings. It may mimic various intestinal diseases and be confused with certain nonischemic conditions clinically and at computed tomography (CT). Bowel ischemia severity ranges from mild (generally transient superficial changes of intestinal mucosa) to more dangerous and potentially life-threatening transmural bowel wall necrosis. Causes of critically reduced blood flow to the bowel are diverse, ranging from occlusions of mesenteric arteries or veins to complicated bowel obstruction and overdistention. CT can demonstrate changes in ischemic bowel segments accurately, is often helpful in determining the primary cause of ischemia, and can demonstrate important coexistent findings or complications. Unfortunately, common CT findings in bowel ischemia are not specific, and specific findings are rather uncommon. Therefore, it often is a combination of nonspecific clinical, laboratory, and radiologic findings-especially detailed knowledge about the pathogenesis of acute bowel ischemia in different conditions-that helps most in correct interpretation of CT findings. To improve understanding of this complex heterogeneous entity, this article provides an overview of the anatomy and physiology of mesenteric perfusion and discussions of causes and pathogenesis of acute bowel ischemia, CT findings in various types of acute bowel ischemia, and potential pitfalls of CT.
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Affiliation(s)
- Walter Wiesner
- Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis St, Boston, MA 02115, USA
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