1
|
Xu Y, Jiang W. Comparison of Unplanned/Urgent-Start Versus Conventional-Start Peritoneal Dialysis: A Systematic Review and Meta-Analysis. Semin Dial 2024; 37:200-210. [PMID: 38477178 DOI: 10.1111/sdi.13198] [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: 10/19/2023] [Revised: 12/21/2023] [Accepted: 01/30/2024] [Indexed: 03/14/2024]
Abstract
The timing of peritoneal dialysis (PD) initiation, whether conventional-start (planned) or urgent-start (unplanned), may impact the outcomes of PD and the rate of associated complications in individuals with chronic kidney disease (CKD). The goal of this study was to evaluate the effects of unplanned/urgent-start PD versus conventional-start PD in this cohort of patients. Electronic search of MEDLINE (via PubMed), EMBASE, Cochrane Central Register of Controlled Trials (CENTRAL), and Scopus databases was done from inception until July 2023 for studies reporting outcomes of unplanned/urgent-start and conventional-start PD in CKD patients. Outcomes of interest included mechanical complications, post-procedure infections, mortality, and transfer to hemodialysis. Heterogeneity, publication bias, and the influence of individual studies on the pooled odds ratio (OR) with 95% confidence interval (CI) were evaluated. Twenty-seven studies were finally included in the review. The overall risk of post-procedure infectious was comparable for both PD initiation methods (OR: 1.05; 95% CI: 0.83-1.34). Similarly, the risks for peritonitis and exit site infections did not differ significantly. However, urgent-start PD correlated with a significantly higher risk of overall mechanical complications (OR: 1.70; 95% CI: 1.23-2.34). Specifically, the risk for leaks was notably higher (OR: 2.47; 95% CI: 1.67-3.65) in the urgent-start group compared to the conventional-start PD group. Urgent-start PD correlated with significantly increased mortality rates (OR: 1.83; 95% CI: 1.39-2.41). There was no difference in the likelihood of technique survival and transfer to hemodialysis. Both urgent-start and conventional-start PD correlated with similar risks of overall infectious complications. Urgent-start PD resulted in significantly increased risks of mechanical complications and mortality. Our findings emphasize the need for meticulous planning and consideration when opting for PD initiation.
Collapse
Affiliation(s)
- Yunfen Xu
- Department of Nephrology, Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, Huzhou, China
| | - Weizhong Jiang
- Department of Nephrology, Huzhou Central Hospital, Affiliated Central Hospital Huzhou University, Huzhou, China
| |
Collapse
|
2
|
Meram E, Russell E, Ozkan O, Kleedehn M. Variceal and Nonvariceal Upper Gastrointestinal Bleeding Refractory to Endoscopic Management: Indications and Role of Interventional Radiology. Gastrointest Endosc Clin N Am 2024; 34:275-299. [PMID: 38395484 DOI: 10.1016/j.giec.2023.09.014] [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: 02/25/2024]
Abstract
For over 60 years, diagnostic and interventional radiology have been heavily involved in the evaluation and treatment of patients presenting with gastrointestinal bleeding. For patients who present with upper GI bleeding and have a contraindication to endoscopy or have an unsuccessful attempt at endoscopy for identifying or controlling the bleeding, interventional radiology is often consulted for evaluation and consideration of catheter-based intervention.
Collapse
Affiliation(s)
- Ece Meram
- University of Wisconsin School of Medicine and Public Health, University of Wisconsin Hospitals and Clinics, 600 Highland Avenue, Madison, WI 53792, USA
| | - Elliott Russell
- University of Wisconsin School of Medicine and Public Health, University of Wisconsin Hospitals and Clinics, 600 Highland Avenue, Madison, WI 53792, USA
| | - Orhan Ozkan
- University of Wisconsin School of Medicine and Public Health, University of Wisconsin Hospitals and Clinics, 600 Highland Avenue, Madison, WI 53792, USA
| | - Mark Kleedehn
- University of Wisconsin School of Medicine and Public Health, University of Wisconsin Hospitals and Clinics, 600 Highland Avenue, Madison, WI 53792, USA.
| |
Collapse
|
3
|
Whiteway J, Yim S, Leong N, Shah A. External Validation of the Oakland Score for Predicting Safe Discharge in Patients Presenting With Lower Gastrointestinal Bleeding at the William Harvey Hospital in the United Kingdom. Cureus 2024; 16:e55497. [PMID: 38440205 PMCID: PMC10911392 DOI: 10.7759/cureus.55497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/04/2024] [Indexed: 03/06/2024] Open
Abstract
Introduction Lower gastrointestinal bleeds (LGIB) are defined by having a bleeding point in the gastrointestinal tract beyond the ligament of Treitz. The most common causes include diverticular bleeds, tumours, and colitis. There are no National Institute for Health and Care Excellence (NICE) guidelines regarding safe discharge of patients with LGIB. The aim of this study was to investigate the effectiveness and safety of the Oakland score, as suggested by the British Society of Gastroenterology (BSG) guidelines, in patients presenting with LGIB at William Harvey Hospital. Methods Patients with LGIB who presented to Accident & Emergency or inpatient referral from January to December 2023 were included in this retrospective study. Data was extracted from patients' Sunrise documentation. The Oakland score for each patient was calculated. Those with a score of ≤8 were deemed safe for discharge; those with a higher score were deemed unsuitable. Patients' admission, discharges, and adverse outcomes, such as representation, blood transfusion, or further intervention, were investigated. Patients with no adverse outcomes were deemed to have had a safe discharge. The area under the receiver-operating characteristic curve (AUROC) for the Oakland score and adverse outcome (and therefore safe discharge) were calculated. Results A total of 123 patients were included. These led to a total of 144 LGIB presentations to the hospital. Twenty-nine patients had an Oakland score of ≤8; 21 (72.4%) cases were initially discharged with four representations (19.0%) and eight (27.6%) were admitted although none of these suffered from any adverse outcomes. For those who scored ≤8, 25 (86.2%) were therefore deemed to have had a safe discharge. A total of 115 had a score >8; 43 (37.4%) were initially discharged, 72 (62.6%) admitted and 41 (35.7%) experienced at least one adverse outcome including 16 (13.9%) representations, 21 (18.3%) blood transfusions, three (2.6%) surgical interventions and one (0.9%) endoscopic haemostasis. Out of the 115 cases which scored >8, 74 (64.3%) were deemed to have had a safe discharge. The AUROC for safe discharge was 0.84. Conclusion The Oakland score seems to be a safe and reliable tool for identifying LGIB patients who could be safely discharged home without hospital intervention. However, further research is required to assess whether a score of >8 could be used as many patients with a higher score did not experience adverse outcomes.
Collapse
Affiliation(s)
- James Whiteway
- Department of General Surgery, East Kent Hospitals University NHS Foundation Trust William Harvey Hospital, Ashford, GBR
| | - Stephanie Yim
- Department of General Surgery, East Cheshire NHS Trust Macclesfield District General Hospital, Macclesfield, GBR
| | - Natalie Leong
- Department of General Surgery, East Kent Hospitals University NHS Foundation Trust William Harvey Hospital, Ashford, GBR
| | - Ankur Shah
- Department of General Surgery, East Kent Hospitals University NHS Foundation Trust William Harvey Hospital, Ashford, GBR
| |
Collapse
|
4
|
Patel RK, Chandel K, Tripathy T, Panigrahi MK, Behera S, Nayak HK, Pattnaik B, Dutta T, Gupta S, Patidar Y, Mukund A. Role of Interventional Radiology (IR) in vascular emergencies among cirrhotic patients. Emerg Radiol 2024; 31:83-96. [PMID: 37978126 DOI: 10.1007/s10140-023-02184-z] [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: 10/03/2023] [Accepted: 11/01/2023] [Indexed: 11/19/2023]
Abstract
Gastrointestinal hemorrhage remains one of the most common causes of morbidity and mortality among patients with liver cirrhosis. Mostly, these patients bleed from the gastroesophageal varices. However, nonvariceal bleeding is also more likely to occur in these patients. Because of frequent co-existing coagulopathy, cirrhotics are more prone to bleed from a minor vascular injury while performing percutaneous interventions. Ultrasound-guided bedside vascular access is an essential procedure in liver critical care units. Transjugular portosystemic shunts (TIPS) with/without variceal embolization is a life-saving measure in patients with refractory variceal bleeding. Whenever feasible, balloon-assisted retrograde transvenous obliteration (BRTO) is an alternative to TIPS in managing gastric variceal bleeding, but without a risk of hepatic encephalopathy. In cases of failed or unfeasible endotherapy, transarterial embolization using various embolic agents remains the cornerstone therapy in patients with nonvariceal bleeding such as ruptured hepatocellular carcinoma, gastroduodenal ulcer bleeding, and procedure-related hemorrhagic complications. Among various embolic agents, N-butyl cyanoacrylate (NBCA) enables better vascular occlusion in cirrhotics, even in coagulopathy, making it a more suitable embolic agent in an expert hand. This article briefly entails the different interventional radiological procedures in vascular emergencies among patients with liver cirrhosis.
Collapse
Affiliation(s)
- Ranjan Kumar Patel
- Department of Radiodiagnosis, All India Institute of Medical Sciences, Bhubaneswar, India, 751019
| | - Karamvir Chandel
- Department of Radiodiagnosis, All India Institute of Medical Sciences, Bhubaneswar, India, 751019
| | - Taraprasad Tripathy
- Department of Radiodiagnosis, All India Institute of Medical Sciences, Bhubaneswar, India, 751019
| | - Manas Kumar Panigrahi
- Department of Gastroenterology, All India Institute of Medical Sciences, Bhubaneswar, India, 751019
| | - Srikant Behera
- Department of General Medicine, All India Institute of Medical Sciences, Bhubaneswar, India, 751019
| | - Hemant Kumar Nayak
- Department of Gastroenterology, All India Institute of Medical Sciences, Bhubaneswar, India, 751019
| | - Bramhadatta Pattnaik
- Department of Surgical Gastroenterology, All India Institute of Medical Sciences, Bhubaneswar, India, 751019
| | - Tanmay Dutta
- Department of Surgical Gastroenterology, All India Institute of Medical Sciences, Bhubaneswar, India, 751019
| | - Sunita Gupta
- Department of Surgical Gastroenterology, All India Institute of Medical Sciences, Bhubaneswar, India, 751019
| | - Yashwant Patidar
- Department of Interventional Radiology, Institute of Liver and Biliary Sciences, New Delhi, India
| | - Amar Mukund
- Department of Interventional Radiology, Institute of Liver and Biliary Sciences, New Delhi, India.
| |
Collapse
|
5
|
Ghazanfar H, Javed N, Balar B. The Role of Timely Angiography in Elderly Patients Presenting With Lower Gastrointestinal Bleeding. Cureus 2023; 15:e47701. [PMID: 38021564 PMCID: PMC10674099 DOI: 10.7759/cureus.47701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/26/2023] [Indexed: 12/01/2023] Open
Abstract
Lower gastrointestinal bleeding (LGIB) is associated with significant morbidity and mortality in the elderly population. Timely diagnosis and establishing the etiology of the LGIB can guide appropriate treatment and management. Our patient is a 91-year-old female who presented to the ER with the complaint of several episodes of hematochezia that started four hours before her presentation. The patient underwent an urgent CT angiography showing active bleeding in the proximal ascending colon. She underwent a super-selective arteriogram followed by embolization of the ascending colon arterial culprit bleeding territory using two coils. Her clinical condition improved, and she had no further episodes of hematochezia. Her case highlights the importance of timely diagnosis of the underlying etiology of a patient presenting with LGIB.
Collapse
Affiliation(s)
| | - Nismat Javed
- Internal Medicine, BronxCare Health System, Bronx, USA
| | - Bhavna Balar
- Gastroenterology, BronxCare Health System, Bronx, USA
| |
Collapse
|
6
|
Fickenscher M, Vorontsov O, Müller T, Radeleff B, Graeb C. Pancreaticobiliary Diseases with Severe Complications as a Rare Indication for Emergency Pancreaticoduodenectomy: A Single-Center Experience and Review of the Literature. J Clin Med 2023; 12:5760. [PMID: 37685827 PMCID: PMC10488344 DOI: 10.3390/jcm12175760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 08/22/2023] [Accepted: 09/02/2023] [Indexed: 09/10/2023] Open
Abstract
The pancreaticobiliary system is a complex and vulnerable anatomic region. Small changes can lead to severe complications. Pancreaticobiliary disorders leading to severe complications include malignancies, pancreatitis, duodenal ulcer, duodenal diverticula, vascular malformations, and iatrogenic or traumatic injuries. Different therapeutic strategies, such as conservative, interventional (e.g., embolization, stent graft applications, or biliary interventions), or surgical therapy, are available in early disease stages. Therapeutic options in patients with severe complications such as duodenal perforation, acute bleeding, or sepsis are limited. If less invasive procedures are exhausted, an emergency pancreaticoduodenectomy (EPD) can be the only option left. The aim of this study was to analyze a single-center experience of EPD performed for benign non-trauma indications and to review the literature concerning EPD. Between January 2015 and January 2022, 11 patients received EPD due to benign non-trauma indications at our institution. Data were analyzed regarding sex, age, indication, operative parameters, length of hospital stay, postoperative morbidity, and mortality. Furthermore, we performed a literature survey using the PubMed database and reviewed reported cases of EPD. Eleven EPD cases due to benign non-trauma indications were analyzed. Indications included peptic duodenal ulcer with penetration into the hepatopancreatic duct and the pancreas, duodenal ulcer with acute uncontrollable bleeding, and penetration into the pancreas, and a massive perforated duodenal diverticulum with peritonitis and sepsis. The mean operative time was 369 min, and the median length of hospital stay was 35.8 days. Postoperative complications occurred in 4 out of 11 patients (36.4%). Total 90-day postoperative mortality was 9.1% (1 patient). We reviewed 17 studies and 22 case reports revealing 269 cases of EPD. Only 20 cases of EPD performed for benign non-trauma indications are reported in the literature. EPD performed for benign non-trauma indications remains a rare event, with only 31 reported cases. The data analysis of all available cases from the literature revealed an increased postoperative mortality rate of 25.8%. If less invasive approaches are exhausted, EPD is still a life-saving procedure with acceptable results. Performed by surgeons with a high level of experience in hepatobiliary and pancreatic surgery, mortality rates below 10% can be achieved.
Collapse
Affiliation(s)
- Maximilian Fickenscher
- Department of General-, Visceral- and Thoracic Surgery, Sana Hospital Hof, 95032 Hof, Germany
| | - Oleg Vorontsov
- Department of General-, Visceral- and Thoracic Surgery, Sana Hospital Hof, 95032 Hof, Germany
| | - Thomas Müller
- Department of Gastroenterology, Sana Hospital Hof, 95032 Hof, Germany
| | - Boris Radeleff
- Department of Diagnostic and Interventional Radiology, Sana Hospital Hof, 95032 Hof, Germany
| | - Christian Graeb
- Department of General-, Visceral- and Thoracic Surgery, Sana Hospital Hof, 95032 Hof, Germany
| |
Collapse
|
7
|
Minici R, Fontana F, Venturini M, Guzzardi G, Piacentino F, Spinetta M, Bertucci B, Serra R, Costa D, Ielapi N, Coppola A, Guerriero P, Apollonio B, Santoro R, Mgjr Research Team, Brunese L, Laganà D. A Multicenter Retrospective Cohort Study Evaluating the Clinical Outcomes of Patients with Coagulopathy Undergoing Transcatheter Arterial Embolization (TAE) for Acute Non-Neurovascular Bleeding. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1333. [PMID: 37512144 PMCID: PMC10383976 DOI: 10.3390/medicina59071333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/04/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023]
Abstract
Background and Objectives: Transcatheter arterial embolization (TAE) is the mainstay of treatment for acute major hemorrhage, even in patients with coagulopathy and spontaneous bleeding. Coagulopathy is associated with worsening bleeding severity and higher mortality and clinical failure rates. Furthermore, some unanswered questions remain, such as the definition of coagulopathy, the indication for TAE or conservative treatment, and the choice of embolic agent. This study aims to assess the efficacy and safety of TAE for spontaneous non-neurovascular acute bleeding in patients with coagulopathy. Materials and Methods: This study is a multicenter analysis of retrospectively collected data of consecutive patients with coagulopathy who had undergone, from January 2018 to May 2023, transcatheter arterial embolization for the management of spontaneous hemorrhages. Results: During the study interval (January 2018-May 2023), 120 patients with coagulopathy underwent TAE for spontaneous non-neurovascular acute bleeding. The abdominal wall was the most common bleeding site (72.5%). The most commonly used embolic agent was polyvinyl alcohol (PVA) particles or microspheres (25.0%), whereas coils and gelatin sponge together accounted for 32.5% of the embolic agents used. Technical success was achieved in all cases, with a 92.5% clinical success rate related to 9 cases of rebleeding. Complications were recorded in 12 (10%) patients. Clinical success was significantly better in the group of patients who underwent correction of the coagulopathy within 24 h of TAE. Conclusions: Transcatheter arterial embolization (TAE) is effective and safe for the management of acute non-neurovascular bleeding in patients with coagulopathy. Correction of coagulopathy should not delay TAE and vice versa, as better clinical outcomes were noted in the subgroup of patients undergoing correction of coagulopathy within 24 h of TAE.
Collapse
Affiliation(s)
- Roberto Minici
- Radiology Unit, Dulbecco University Hospital, 88100 Catanzaro, Italy
| | - Federico Fontana
- Diagnostic and Interventional Radiology Unit, ASST Settelaghi, Insubria University, 21100 Varese, Italy
- School of Medicine and Surgery, Insubria University, 21100 Varese, Italy
| | - Massimo Venturini
- Diagnostic and Interventional Radiology Unit, ASST Settelaghi, Insubria University, 21100 Varese, Italy
- School of Medicine and Surgery, Insubria University, 21100 Varese, Italy
| | - Giuseppe Guzzardi
- Radiology Unit, Maggiore della Carità University Hospital, 28100 Novara, Italy
| | - Filippo Piacentino
- Diagnostic and Interventional Radiology Unit, ASST Settelaghi, Insubria University, 21100 Varese, Italy
| | - Marco Spinetta
- Radiology Unit, Maggiore della Carità University Hospital, 28100 Novara, Italy
| | - Bernardo Bertucci
- Radiology Unit, Dulbecco University Hospital, 88100 Catanzaro, Italy
| | - Raffaele Serra
- Vascular Surgery Unit, Department of Medical and Surgical Sciences, Magna Graecia University of Catanzaro, Dulbecco University Hospital, 88100 Catanzaro, Italy
| | - Davide Costa
- Department of Law, Economics and Sociology, Magna Graecia University of Catanzaro, 88100 Catanzaro, Italy
| | - Nicola Ielapi
- Department of Public Health and Infectious Disease, Sapienza University of Rome, 00185 Rome, Italy
| | - Andrea Coppola
- Diagnostic and Interventional Radiology Unit, ASST Settelaghi, Insubria University, 21100 Varese, Italy
| | - Pasquale Guerriero
- Radiology Unit, Santobono-Pausilipon Hospital, 80129 Naples, Italy
- Department of Medicine and Health Sciences, University of Molise, 86100 Campobasso, Italy
| | | | - Rita Santoro
- Haemophilia and Thrombosis Center, Dulbecco University Hospital, 88100 Catanzaro, Italy
| | | | - Luca Brunese
- Department of Medicine and Health Sciences, University of Molise, 86100 Campobasso, Italy
- Scientific Committee of the Italian National Institute of Health (Istituto Superiore di Sanità, ISS), 00161 Rome, Italy
| | - Domenico Laganà
- Radiology Unit, Dulbecco University Hospital, 88100 Catanzaro, Italy
- Department of Experimental and Clinical Medicine, Magna Graecia University of Catanzaro, 88100 Catanzaro, Italy
| |
Collapse
|
8
|
Hörer TM, Ierardi AM, Carriero S, Lanza C, Carrafiello G, McGreevy DT. Emergent vessel embolization for major traumatic and non-traumatic hemorrhage: Indications, tools and outcomes. Semin Vasc Surg 2023; 36:283-299. [PMID: 37330241 DOI: 10.1053/j.semvascsurg.2023.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 04/18/2023] [Accepted: 04/20/2023] [Indexed: 06/19/2023]
Abstract
Endovascular embolization of bleeding vessels in trauma and non-trauma patients is frequently used and is an important tool for bleeding control. It is included in the EVTM (endovascular resuscitation and trauma management) concept and its use in patients with hemodynamic instability is increasing. When the correct embolization tool is chosen, a dedicated multidisciplinary team can rapidly and effectively achieve bleeding control. In this article, we will describe the current use and possibilities for embolization of major hemorrhage (traumatic and non-traumatic) and the published data supporting these techniques as part of the EVTM concept.
Collapse
Affiliation(s)
- Tal M Hörer
- Department of Cardiothoracic and Vascular Surgery, Faculty of Life Sciences, Örebro University Hospital and Örebro University, Södra Grev Rosengatan, 701 85 Örebro, Sweden; Department of Surgery, Faculty of Life Sciences, Örebro University Hospital and Örebro University, Örebro, Sweden; Carmel Lady Davis Hospital, Technion Medical Faculty, Haifa, Israel.
| | - Anna Maria Ierardi
- Radiology Unit, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Cà Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Serena Carriero
- Post Graduate School of Radiology, University of Milan, Milan, Italy
| | - Carolina Lanza
- Post Graduate School of Radiology, University of Milan, Milan, Italy
| | - Gianpaolo Carrafiello
- Radiology Unit, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Cà Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - David T McGreevy
- Department of Cardiothoracic and Vascular Surgery, Faculty of Life Sciences, Örebro University Hospital and Örebro University, Södra Grev Rosengatan, 701 85 Örebro, Sweden
| |
Collapse
|
9
|
Geisler T, Poli S, Huber K, Rath D, Aidery P, Kristensen SD, Storey RF, Ball A, Collet JP, Berg JT. Resumption of Antiplatelet Therapy after Major Bleeding. Thromb Haemost 2023; 123:135-149. [PMID: 35785817 DOI: 10.1055/s-0042-1750419] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Major bleeding is a common threat in patients requiring antiplatelet therapy. Timing and intensity with regard to resumption of antiplatelet therapy represent a major challenge in clinical practice. Knowledge of the patient's bleeding risk, defining transient/treatable and permanent/untreatable risk factors for bleeding, and weighing these against thrombotic risk are key to successful prevention of major adverse events. Shared decision-making involving various disciplines is essential to determine the optimal strategy. The present article addresses clinically relevant questions focusing on the most life-threatening or frequently occurring bleeding events, such as intracranial hemorrhage and gastrointestinal bleeding, and discusses the evidence for antiplatelet therapy resumption using individual risk assessment in high-risk cardiovascular disease patients.
Collapse
Affiliation(s)
- Tobias Geisler
- Department of Cardiology and Angiology, University Hospital, Eberhard-Karls-University Tuebingen, Tuebingen, Germany
| | - Sven Poli
- Department of Neurology & Stroke, Eberhard-Karls-University Tuebingen, Tuebingen, Germany.,Hertie Institute for Clinical Brain Research, Eberhard-Karls-University Tuebingen, Tuebingen, Germany
| | - Kurt Huber
- 3rd Department of Medicine, Cardiology and Intensive Care Medicine, Wilhelminen Hospital, Medical Faculty, Sigmund Freud University, Vienna, Austria
| | - Dominik Rath
- Department of Cardiology and Angiology, University Hospital, Eberhard-Karls-University Tuebingen, Tuebingen, Germany
| | - Parwez Aidery
- Department of Cardiology and Angiology, University Hospital, Eberhard-Karls-University Tuebingen, Tuebingen, Germany
| | - Steen D Kristensen
- Department of Cardiology, Aarhus University Hospital, Faculty of Health, Aarhus University, Aarhus, Denmark.,Department of Clinical Medicine, Faculty of Health, Aarhus University, Aarhus, Denmark
| | - Robert F Storey
- Cardiovascular Research Unit, Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, United Kingdom
| | - Alex Ball
- Department of Gastroenterology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, United Kingdom
| | - Jean-Philippe Collet
- ACTION Study Group, Institut de Cardiologie, Hôpital Pitié-Salpêtrière (AP-HP), Sorbonne Université, Paris, France
| | - Jurriën Ten Berg
- Department of Cardiology, St Antonius Hospital, Nieuwegein, The Netherlands.,Cardiovascular Research Institute Maastricht (CARIM), Maastricht, The Netherlands
| |
Collapse
|
10
|
Kwon SH, Noh SY, Oh JH. Interventional radiological approaches to non-variceal gastrointestinal bleeding. INTERNATIONAL JOURNAL OF GASTROINTESTINAL INTERVENTION 2023. [DOI: 10.18528/ijgii220005] [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: 02/04/2023] Open
Affiliation(s)
- Se Hwan Kwon
- Department of Radiology, College of Medicine, Kyung Hee University, Seoul, Korea
| | - Seung Yeon Noh
- Department of Radiology, College of Medicine, Kyung Hee University, Seoul, Korea
| | - Joo Hyeong Oh
- Department of Radiology, College of Medicine, Kyung Hee University, Seoul, Korea
| |
Collapse
|
11
|
Lee HA, Jung HK, Kim TO, Byeon JR, Jeong ES, Cho HJ, Tae CH, Moon CM, Kim SE, Shim KN, Jung SA. Clinical outcomes of acute upper gastrointestinal bleeding according to the risk indicated by Glasgow-Blatchford risk score-computed tomography score in the emergency room. Korean J Intern Med 2022; 37:1176-1185. [PMID: 36375488 PMCID: PMC9666247 DOI: 10.3904/kjim.2022.099] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 04/18/2022] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND/AIMS Acute upper gastrointestinal (UGI) bleeding is a significant emergency situation with a mortality rate of 2% to 10%. Therefore, initial risk stratification is important for proper management. We aimed to evaluate the role of contrast-enhanced multidetector computed tomography (MDCT) for risk stratification in patients with acute UGI bleeding in the emergency room (ER). METHODS This retrospective study included patients with UGI bleeding in the ER. Glasgow-Blatchford risk score-computed tomography (GBS-CT) was assessed using a combination of GBS and the MDCT scan scoring system. RESULTS Of the 297 patients with UGI bleeding, 124 (41.8%) underwent abdominal MDCT. Among them, 90.3% were classified as high-risk by GBS, and five patients died (4.0%). Rebleeding occurred in nine patients (7.3%). The high-risk GBS-CT group had significantly higher in-hospital mortality (10.5% in high-risk vs. 1.4% in moderate risk vs. 0% in low-risk, p = 0.049), transfusion amount (p < 0.001), and endoscopic hemostasis (p < 0.001) compared to the moderate- and low-risk groups. CONCLUSION Adding MDCT scans to the existing validated prognosis model when predicting the risk of UGI bleeding in patients in the ER plays a significant role in determining in-hospital mortality, transfusions, and the need for endoscopic hemostasis.
Collapse
Affiliation(s)
- Hyun Ae Lee
- Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul, Korea
| | - Hye-Kyung Jung
- Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul, Korea
| | - Tae Oh Kim
- Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul, Korea
| | - Ju-Ran Byeon
- Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul, Korea
| | - Eui-Sun Jeong
- Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul, Korea
| | - Hyun-Ji Cho
- Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul, Korea
| | - Chung Hyun Tae
- Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul, Korea
| | - Chang Mo Moon
- Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul, Korea
| | - Seong-Eun Kim
- Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul, Korea
| | - Ki-Nam Shim
- Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul, Korea
| | - Sung-Ae Jung
- Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul, Korea
| |
Collapse
|
12
|
Ephraim Joseph K, Devane AM, Abrams GA. Patient and endoscopic characteristics and clinical outcomes in subjects with non-variceal GI bleeding referred for transarterial embolization: a single-center experience. ABDOMINAL RADIOLOGY (NEW YORK) 2022; 47:3883-3891. [PMID: 36031627 DOI: 10.1007/s00261-022-03650-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 08/05/2022] [Accepted: 08/08/2022] [Indexed: 01/18/2023]
Abstract
PURPOSE Management of massive non-variceal upper gastrointestinal bleeding (NV-UGIB) can be challenging. Transarterial Embolization (TAE) is often the first therapeutic approach when endoscopic therapy fails before surgery. The purpose of this study is to analyze the technical success, and outcome for our patients with an NV-UGIB referred for TAE. METHOD This retrospective analysis included 74 consecutive patients with an NV-UGIB in whom TAE was performed after endoscopic treatment between February 2016 to May 2019 at Prisma Health-Upstate Greenville Memorial Hospital. RESULTS TAE was 98.7% technically successful, with a failure due to severe celiac stenosis, and 85.1% clinically successful. Most TAEs were performed empirically due to lack of extravasation yet were clinically as effective as targeted TAE. We noted a 30-day rebleeding rate and mortality rate of 14.8% and 13.5%, respectively. No complications were reported during the angiographic procedure. Subjects with coagulopathy had more rebleeding (45.5% vs. 17.5%, p = 0.040), and mortality (30% vs 7.4%, p = 0.012). Mortality was also associated with the number of transfused packed blood cells (13.6 ± 8.4 vs. 6.1 ± 5.4, p = 0.020) units and hypotension on admission (27.8% vs. 8.9%, p = 0.043). Interestingly, subjects that underwent left gastric artery (LGA) compared to non-LGA embolization had a higher rebleeding rate of (37.5% vs. 8.6%, p = 0.004) and a greater mortality rate of (37.5% vs. 6.9%, p = 0.002). CONCLUSION TAE is clinically effective in the presence or absence of contrast extravasation to treat uncontrolled or high-risk NV-UGIB. Less effective clinical outcomes regarding TAE targeting the LGA warrant further investigation.
Collapse
Affiliation(s)
- Kripalini Ephraim Joseph
- Department of Medicine, Gastroenterology & Liver Center, Prisma Health- Upstate, Greenville, SC, 29605, USA.
| | - Aron M Devane
- Department of Diagnostic and Interventional Radiology, University of South Carolina SOM - Greenville, Prisma Health -Upstate, Greenville, SC, 29605, USA
| | - Gary A Abrams
- Department of Medicine, Gastroenterology & Liver Center, University of South Carolina SOM - Greenville, Prisma Health- Upstate, Greenville, SC, 29605, USA
| |
Collapse
|
13
|
Pitrone P, Stagno A, Cattafi A, Caloggero S, Silipigni S, Ascenti V, Catanzariti F, Cinquegrani A, Bottari A. The use of cyanoacrylate in the treatment of angiodysplasias: A safe and cheap alternative to coils. BJR Case Rep 2022; 8:20210130. [PMID: 36211613 PMCID: PMC9518728 DOI: 10.1259/bjrcr.20210130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 06/07/2022] [Accepted: 06/19/2022] [Indexed: 11/17/2022] Open
Abstract
Gastrointestinal angiodysplasia (GIAD) represents one of the most frequent causes of recurrent lower gastrointestinal bleeding in the elder population. Clinical manifestations are highly variable, diagnosis is done with colonoscopy or CT and management consists of either endoscopic or, more conservatively, endovascular approach. Trans-arterial embolization (TAE) reduces blood flow into the lesion and may complicate with perforation, dissection, vasospasm and bowel ischaemia. To date, coils and Gelfoam represent the most employed embolizing agents, followed by PVA and onyx. We report the successful embolization of GIADs in four patients with n-butyl 2-cyanoacrylate (NBCA) and Lipiodol Ultra-Fluid (LUF): despite the reported higher risk of bowel infarction when compared with the other agents, no major complication or short-term recurrence occurred in our series.
Collapse
Affiliation(s)
- Pietro Pitrone
- Department of Biomedical and Dental Sciences and of Morphological and Functional Images, Section of Radiological Sciences, University of Messina, Messina, Italy
| | - Alberto Stagno
- Department of Imaging, Interventional Radiology Unit, University Hospital “G. Martino”, Messina, Italy
| | - Antonino Cattafi
- Department of Biomedical and Dental Sciences and of Morphological and Functional Images, Section of Radiological Sciences, University of Messina, Messina, Italy
| | - Simona Caloggero
- Department of Imaging, Interventional Radiology Unit, University Hospital “G. Martino”, Messina, Italy
| | - Salvatore Silipigni
- Department of Imaging, Interventional Radiology Unit, University Hospital “G. Martino”, Messina, Italy
| | - Velio Ascenti
- Postgraduate School of Diagnostic and Interventional Radiology, University of Milan, Milan, Italy
| | - Francesca Catanzariti
- Department of Imaging, Interventional Radiology Unit, University Hospital “G. Martino”, Messina, Italy
| | - Antonella Cinquegrani
- Department of Imaging, Interventional Radiology Unit, University Hospital “G. Martino”, Messina, Italy
| | - Antonio Bottari
- Department of Biomedical and Dental Sciences and of Morphological and Functional Images, Section of Radiological Sciences, University of Messina, Messina, Italy
- Department of Imaging, Interventional Radiology Unit, University Hospital “G. Martino”, Messina, Italy
| |
Collapse
|
14
|
Gupta P, Madhusudhan KS, Padmanabhan A, Khera PS. Indian College of Radiology and Imaging Consensus Guidelines on Interventions in Pancreatitis. Indian J Radiol Imaging 2022; 32:339-354. [PMID: 36177275 PMCID: PMC9514912 DOI: 10.1055/s-0042-1754313] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
AbstractAcute pancreatitis (AP) is one of the common gastrointestinal conditions presenting as medical emergency. Clinically, the severity of AP ranges from mild to severe. Mild AP has a favorable outcome. Patients with moderately severe and severe AP, on the other hand, require hospitalization and considerable utilization of health care resources. These patients require a multidisciplinary management. Pancreatic fluid collections (PFCs) and arterial bleeding are the most important local complications of pancreatitis. PFCs may require drainage when infected or symptomatic. PFCs are drained endoscopically or percutaneously, based on the timing and the location of collection. Both the techniques are complementary, and many patients may undergo dual modality treatment. Percutaneous catheter drainage (PCD) remains the most extensively utilized method for drainage in patients with AP and necrotic PFCs. Besides being effective as a standalone treatment in a significant proportion of these patients, PCD also provides an access for percutaneous endoscopic necrosectomy and minimally invasive necrosectomy. Endovascular embolization is the mainstay of management of arterial complications in patients with AP and chronic pancreatitis. The purpose of the present guideline is to provide evidence-based recommendations for the percutaneous management of complications of pancreatitis.
Collapse
Affiliation(s)
- Pankaj Gupta
- Department of Radiodiagnosis and Imaging, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | | | - Aswin Padmanabhan
- Division of Clinical Radiology, Department of Interventional Radiology, Christian Medical College, Vellore, Tamil Nadu, India
| | - Pushpinder Singh Khera
- Department of Diagnostic and Interventional Radiology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
| |
Collapse
|
15
|
Prophylactic arterial embolization in patients with bleeding peptic ulcers following endoscopic control of bleeding. Hippokratia 2022. [DOI: 10.1002/14651858.cd014999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
16
|
Ozen O, Boyvat F, Harman A, Karakaya E, Haberal M. Endovascular Management of Hematomas in Pediatric Transplant Patients. EXP CLIN TRANSPLANT 2022; 20:56-61. [PMID: 35570602 DOI: 10.6002/ect.pediatricsymp2022.o19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVES Transcatheter arterial embolization is used to control active hemorrhage at different anatomic locations. Because hematomas can suddenly deteriorate and become life threatening for transplant patients, they require prompt diagnosis and intervention rather than conservative management. Here, we evaluated computed tomography in treatment planning and transcatheter embolization effectiveness for hematoma management in pediatric liver transplant patients. MATERIALS AND METHODS Between June 2012 and December 2021, 10 pediatric liver transplant patients were referred to our interventional radiology unit. Computed tomography and angiograms were reviewed for hematoma location and presence of extravasation. We analyzed correlations between computed tomography and angiography findings and technical and clinical success of the endovascular interventions. RESULTS Active leak of contrast material during arterial phase was detected on 9/10 CT scans. Although there was no active bleeding on CT in 1 patient, active arterial bleeding was detected on angiography. On the contrary, in 2 patients, although active bleeding was observed on computed tomography, it was not detected on angiography. Source of bleeding was superior mesenteric artery branches in 4, hepatic artery branch in 2, superior epigastric artery in 1, and phrenic artery in 1 patient. Six of 8 patients with active bleeding were treated with endovascular procedures. The remaining 2 patients received surgery: 1 had bleeding from liver cut surface originating from a hepatic artery branch and received open surgery because the bleeding branch was too thin for catheterization, and 1 was hemodynamically unstable and selective catheterization of the internal thoracic artery would take time. Two patients received embolization procedures with N-butyl 2-cyanoacrylate (glue) diluted with iodized oil, and 1 patient had coil and glue with iodized oil. Embolization with coils was performed in 3 patients. Rate of success with transcatheter arterial embolization was 75%. No complications related to patient comorbidities or embolization procedures were shown. No deaths occurred due to progression of the hematoma. CONCLUSIONS Transcatheter arterial embolization is effective and safe for treatment of pediatric liver transplant patients with hematomas. Computed tomography has value in identifying the bleeding source and its anatomic relationships and may enhance our intervention abilities to become quicker, more effective, and more secured.
Collapse
Affiliation(s)
- Ozgur Ozen
- From the Department of Radiology, Baskent University Ankara Hospital, Ankara, Turkey
| | | | | | | | | |
Collapse
|
17
|
Kaufmann R, Zech CJ, Deutschmann M, Scharinger B, Hecht S, Hergan K, Rezar R, Hitzl W, Meissnitzer M. Endovascular embolization techniques in acute thoracic and abdominal bleedings can be technically reproduced and trained in a standardized simulation setting using SLA 3D printing: a 1-year single-center study. Insights Imaging 2022; 13:72. [PMID: 35397043 PMCID: PMC8994805 DOI: 10.1186/s13244-022-01206-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 03/13/2022] [Indexed: 12/29/2022] Open
Abstract
Background Endovascular embolization techniques are nowadays well established in the management of acute arterial bleedings. However, the education and training of the next generation of interventionalists are still based on the traditional apprenticeship model, where the trainee learns and practices directly at the patient, which potentially affects the patient’s safety. The objective of this study was to design and develop a standardized endovascular simulation concept for the training of acute bleeding embolizations, based on real-life cases. Results An adaptable and cost-effective endovascular simulator was developed using an in-house 3D print laboratory. All thoracic and abdominal acute bleeding embolizations over more than a year with appropriate pre-interventional computed tomography scans were included to manufacture 3D printed vascular models. A peristaltic pump was used to generate pulsatile flow curves. Forty embolization cases were engaged in this study, and 27 cases were fully reproduced in the simulation setting (69.23%). The simulation success was significantly lower in pulmonary embolizations (p = 0.031) and significantly higher in soft tissue (p = 0.032) and coil embolizations (p = 0.045). The overall simulation success was 7.8 out of 10 available points. Conclusions Using stereolithography 3D printing in a standardized simulation concept, endovascular embolization techniques for treating acute internal hemorrhages in the chest and abdomen can be simulated and trained based on the patient-specific anatomy in a majority of the cases and at a broad spectrum of different causes. Supplementary Information The online version contains supplementary material available at 10.1186/s13244-022-01206-7.
Collapse
Affiliation(s)
- Reinhard Kaufmann
- Department of Radiology, University Hospital Salzburg, Paracelsus Medical University, Müllner Hauptstraße 48, 5020, Salzburg, Austria. .,Clinic of Radiology and Nuclear Medicine, University Hospital Basel, University of Basel, 4031, Basel, Switzerland.
| | - Christoph J Zech
- Clinic of Radiology and Nuclear Medicine, University Hospital Basel, University of Basel, 4031, Basel, Switzerland
| | - Michael Deutschmann
- Department of Radiology, University Hospital Salzburg, Paracelsus Medical University, Müllner Hauptstraße 48, 5020, Salzburg, Austria
| | - Bernhard Scharinger
- Department of Radiology, University Hospital Salzburg, Paracelsus Medical University, Müllner Hauptstraße 48, 5020, Salzburg, Austria
| | - Stefan Hecht
- Department of Radiology, University Hospital Salzburg, Paracelsus Medical University, Müllner Hauptstraße 48, 5020, Salzburg, Austria
| | - Klaus Hergan
- Department of Radiology, University Hospital Salzburg, Paracelsus Medical University, Müllner Hauptstraße 48, 5020, Salzburg, Austria
| | - Richard Rezar
- Clinic of Internal Medicine II, Department of Cardiology and Internal Intensive Care Medicine, University Hospital Salzburg, Paracelsus Medical University, 5020, Salzburg, Austria
| | - Wolfgang Hitzl
- Research Office (Biostatistics), Paracelsus Medical University of Salzburg, 5020, Salzburg, Austria
| | - Matthias Meissnitzer
- Department of Radiology, University Hospital Salzburg, Paracelsus Medical University, Müllner Hauptstraße 48, 5020, Salzburg, Austria
| |
Collapse
|
18
|
Kate V, Sureshkumar S, Gurushankari B, Kalayarasan R. Acute Upper Non-variceal and Lower Gastrointestinal Bleeding. J Gastrointest Surg 2022; 26:932-949. [PMID: 35083723 DOI: 10.1007/s11605-022-05258-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 01/17/2022] [Indexed: 01/31/2023]
Abstract
Acute gastrointestinal (GI) bleeding is a common surgical emergency requiring hospital admission and associated with high morbidity and mortality. Appropriate decision-making is essential to make a prompt diagnosis, accurate risk assessment, and proper resuscitation of patients with gastrointestinal bleeding. Despite multiple randomized trials and meta-analyses, there is still controversy on various management issues like appropriate risk stratification, the timing of endoscopy, choosing an appropriate endoscopic, and radiological intervention in these groups of patients. As the usage of nonsteroidal anti-inflammatory drugs, antiplatelet, and antithrombotic agents is common in patients with gastrointestinal bleeding, the physician is challenged with proper management of these drugs. The present review summarizes the current strategies for risk stratification, localization of bleeding source, endoscopic and radiological intervention in patients with acute nonvariceal upper GI, middle GI, and lower GI bleeding.
Collapse
Affiliation(s)
- Vikram Kate
- Department of Surgery and Gastrointestinal Surgery, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Pondicherry, 605006, India.
| | - Sathasivam Sureshkumar
- Department of Surgery and Gastrointestinal Surgery, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Pondicherry, 605006, India
| | - Balakrishnan Gurushankari
- Department of Surgery and Gastrointestinal Surgery, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Pondicherry, 605006, India
| | - Raja Kalayarasan
- Department of Surgery and Gastrointestinal Surgery, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Pondicherry, 605006, India
| |
Collapse
|
19
|
Syed M, Efridi W, Khan T, Deek F, Kurian M, Shaikh A. A Novel approach to catheterizing the Left Gastric Artery for bariatric embolization. Radiol Case Rep 2021; 16:3574-3576. [PMID: 34584594 PMCID: PMC8455695 DOI: 10.1016/j.radcr.2021.08.051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 08/17/2021] [Accepted: 08/19/2021] [Indexed: 11/04/2022] Open
Abstract
We present the case of a 45 Y/o morbidly obese male who - unable to lose weight despite extensive lifestyle interventions, presented to us for an experimental procedure known as bariatric embolization. This arterial embolization procedure was performed targeting the left gastric artery with aims to restrict blood flow to the gastric fundus, and lowering serum ghrelin levels. In this case the left gastric artery arose cephalad from the celiac, earlier than where it normally branches; a variation known as a “false tripod”, causing some initial difficulty with selection. We describe how introducing a tertiary curve on the guidewire proved successful. Adapting the guidewire for difficult anatomy is an often a very underutilized skillset for many interventionalists - but led to success in this rather nascent procedure.
Collapse
Affiliation(s)
- Mubin Syed
- Dayton Interventional Radiology, 3075 Governors Place Blvd., Ste. 120, Dayton, OH 45409, USA.,Samaritan Hospital, 2222 Philadelphia Dr., Dayton, OH 45406, USA.,Boonshoft School of Medicine at Wright State, 3640 Colonel Glenn Hwy, Dayton, OH 45435, USA.,Springfield Regional Medical Center, 100 Medical Center Drive, Springfield, OH 45504, USA
| | - Wajahat Efridi
- Dayton Interventional Radiology, 3075 Governors Place Blvd., Ste. 120, Dayton, OH 45409, USA.,Suny Upstate Medical University, 750 E Adams Street, Syracuse, NY, 13210
| | - Tanya Khan
- Dayton Interventional Radiology, 3075 Governors Place Blvd., Ste. 120, Dayton, OH 45409, USA.,Northeastern Ohio Medical University (NEOMED), 4209 OH-44, Rootstown, OH 44272,USA
| | - Feras Deek
- Dayton Interventional Radiology, 3075 Governors Place Blvd., Ste. 120, Dayton, OH 45409, USA
| | - Matthew Kurian
- Dayton Interventional Radiology, 3075 Governors Place Blvd., Ste. 120, Dayton, OH 45409, USA.,Northeastern Ohio Medical University (NEOMED), 4209 OH-44, Rootstown, OH 44272,USA
| | - Azim Shaikh
- Dayton Interventional Radiology, 3075 Governors Place Blvd., Ste. 120, Dayton, OH 45409, USA
| |
Collapse
|
20
|
Lambe G, Courtney M, Judge C, Donlon NE, Ravi N, Ryan M. A case report of endovascular management of delayed upper gastrointestinal bleeding after open esophagectomy for a benign esophageal stricture. Int J Surg Case Rep 2021; 85:106277. [PMID: 34388907 PMCID: PMC8355951 DOI: 10.1016/j.ijscr.2021.106277] [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: 07/10/2021] [Revised: 08/02/2021] [Accepted: 08/02/2021] [Indexed: 02/08/2023] Open
Abstract
INTRODUCTION Delayed upper gastrointestinal (GI) bleeding is a rare complication of esophagectomy and can be difficult to manage. PRESENTATION A 76-year-old female represented 17 days post open esophagectomy with an unstable upper GI bleed. When control could not be achieved endoscopically, she was transferred to the Radiology Department where a triphasic CT angiogram confirmed active contrast extravasation into the gastric tube. She proceeded to the Interventional Radiology suite where a thoracic angiogram revealed an active arterial bleed from a branch of the thyrocervical trunk. The bleeding vessel was successfully embolised with coils and haemostasis was achieved. DISCUSSION Management options for upper GI bleeding post esophagectomy include medical, endoscopic and endovascular approaches. CONCLUSION Our case represents a rare example of delayed bleeding into a gastric conduit post open esophagectomy for a benign stricture. The case reinforces.
Collapse
Affiliation(s)
- Gerard Lambe
- Radiology Department, St. James's Hospital, James's Street, Dublin 8, Ireland,Corresponding author.
| | - Michael Courtney
- Radiology Department, St. James's Hospital, James's Street, Dublin 8, Ireland
| | - Ciaran Judge
- Gastroenterology Department, St. James's Hospital, James's Street, Dublin 8, Ireland
| | - Noel E. Donlon
- Department of Upper GI Surgery, St. James's Hospital, James's Street, Dublin 8, Ireland
| | - Narayanasamy Ravi
- Department of Upper GI Surgery, St. James's Hospital, James's Street, Dublin 8, Ireland
| | - Mark Ryan
- Radiology Department, St. James's Hospital, James's Street, Dublin 8, Ireland
| |
Collapse
|
21
|
Chang KP, Lin SH, Chu YW. Artificial intelligence in gastrointestinal radiology: A review with special focus on recent development of magnetic resonance and computed tomography. Artif Intell Gastroenterol 2021; 2:27-41. [DOI: 10.35712/aig.v2.i2.27] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 03/21/2021] [Accepted: 04/20/2021] [Indexed: 02/06/2023] Open
Abstract
Artificial intelligence (AI), particularly the deep learning technology, have been proven influential to radiology in the recent decade. Its ability in image classification, segmentation, detection and reconstruction tasks have substantially assisted diagnostic radiology, and has even been viewed as having the potential to perform better than radiologists in some tasks. Gastrointestinal radiology, an important subspecialty dealing with complex anatomy and various modalities including endoscopy, have especially attracted the attention of AI researchers and engineers worldwide. Consequently, recently many tools have been developed for lesion detection and image construction in gastrointestinal radiology, particularly in the fields for which public databases are available, such as diagnostic abdominal magnetic resonance imaging (MRI) and computed tomography (CT). This review will provide a framework for understanding recent advancements of AI in gastrointestinal radiology, with a special focus on hepatic and pancreatobiliary diagnostic radiology with MRI and CT. For fields where AI is less developed, this review will also explain the difficulty in AI model training and possible strategies to overcome the technical issues. The authors’ insights of possible future development will be addressed in the last section.
Collapse
Affiliation(s)
- Kai-Po Chang
- PhD Program in Medical Biotechnology, National Chung Hsing University, Taichung 40227, Taiwan
- Department of Pathology, China Medical University Hospital, Taichung 40447, Taiwan
| | - Shih-Huan Lin
- PhD Program in Medical Biotechnology, National Chung Hsing University, Taichung 40227, Taiwan
| | - Yen-Wei Chu
- PhD Program in Medical Biotechnology, National Chung Hsing University, Taichung 40227, Taiwan
- Institute of Genomics and Bioinformatics, National Chung Hsing University, Taichung 40227, Taiwan
- Institute of Molecular Biology, National Chung Hsing University, Taichung 40227, Taiwan
- Agricultural Biotechnology Center, National Chung Hsing University, Taichung 40227, Taiwan
- Biotechnology Center, National Chung Hsing University, Taichung 40227, Taiwan
- PhD Program in Translational Medicine, National Chung Hsing University, Taichung 40227, Taiwan
- Rong Hsing Research Center for Translational Medicine, Taichung 40227, Taiwan
| |
Collapse
|
22
|
Naga Y, Jayaraj M, Elmofti Y, Hong A, Ohning G. Intraluminal Endovascular Coil Migration: A Rare Complication Post-Embolization of the Gastroduodenal Artery for a Previously Bleeding Duodenal Ulcer. Cureus 2021; 13:e14615. [PMID: 34040915 PMCID: PMC8139854 DOI: 10.7759/cureus.14615] [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] [Indexed: 11/21/2022] Open
Abstract
Transarterial angiographic embolization is a highly effective, safe treatment for non-variceal upper gastrointestinal bleeding refractory to endoscopic intervention. However, intraluminal coil migration is a possible complication. Coil migration, while usually a self-limiting process, can lead to significant rebleeding. In our case, a patient presented with a life-threatening duodenal ulcer hemorrhage, likely precipitated by intraluminal endovascular coil migration after a recent gastro-duodenal artery embolization. He was successfully managed without endoscopic coil removal and had no additional gastrointestinal bleeding. It is important for endoscopists to be aware of this complication and weigh the risks and benefits of coil removal.
Collapse
Affiliation(s)
- Yassin Naga
- Internal Medicine, University of Nevada Las Vegas School of Medicine, Las Vegas, USA
| | - Mahendran Jayaraj
- Gastroenterology, University of Nevada Las Vegas School of Medicine, Las Vegas, USA
| | - Yousif Elmofti
- Gastroenterology, University of Nevada Las Vegas School of Medicine, Las Vegas, USA
| | - Annie Hong
- Gastroenterology, University of Nevada Las Vegas School of Medicine, Las Vegas, USA
| | - Gordon Ohning
- Gastroenterology, University of Nevada Las Vegas School of Medicine, Las Vegas, USA
| |
Collapse
|
23
|
Spiliopoulos S, Katsanos K, Paraskevopoulos I, Mariappan M, Festas G, Kitrou P, Papageorgiou C, Reppas L, Palialexis K, Karnabatidis D, Brountzos E. Multicenter retrospective study of transcatheter arterial embolisation for life-threatening haemorrhage in patients with uncorrected bleeding diathesis. CVIR Endovasc 2020; 3:95. [PMID: 33301058 PMCID: PMC7728894 DOI: 10.1186/s42155-020-00186-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 11/29/2020] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND We retrospectively investigated outcomes of emergency TAE for the management of life-threatening haemorrhage in patients with uncorrected bleeding diathesis. MATERIALS AND METHODS This multicenter, retrospective, study, was designed to investigate the safety and efficacy of percutaneous TAE for the management of life-threatening haemorrhage in patients with uncorrected bleeding disorder at the time of embolization. All consecutive patients with uncorrected coagulation who underwent TAE for the treatment of haemorrhage, between January 1st and December 31th 2019 in three European centers were included. Inclusion criteria were thrombocytopenia (platelet count < 50,000/mL) and/or International Normalized Ratio (INR) ≥2.0, and/or activated partial thromboplastin time (aPTT) > 45 s, and/or a pre-existing underlying blood-clotting disorder such as factor VIII, Von Willebrand disease, hepatic cirrhosis with abnormal liver function tests. Primary outcome measures were technical success, rebleeding rate and clinical success. Secondary outcome measures included patients' 30-day survival rate, and procedure-related complications. RESULTS In total, 134 patients underwent TAE for bleeding control. A subgroup of 17 patients with 18 procedures [11 female, mean age 70.5 ± 15 years] which represent 12.7% of the total number of patients, presented with pathological coagulation parameters at the time of TAE (haemophilia n = 3, thrombocytopenia n = 1, cirrhosis n = 5, anticoagulants n = 7, secondary to bleeding n = 1) and were analyzed. Technical success was 100%, as in all procedures the bleeding site was detected and successfully embolised. Clinical success was 100%, as none of the patients died of bleeding during hospitalization, nor was surgically treated for bleeding relapse. Only one rebleeding case was noted (5.9%) that was successfully treated with a second TAE. No procedure-related complications were noted. According to Kaplan-Meier analysis the estimated 30-day survival rate was 84.2%. CONCLUSION TAE in selected patients with uncorrected bleeding diathesis should be considered as a suitable individualized management approach. Emergency TAE for life threatening haemorrhage in patients with coagulation cascade disorders should be used as an aid in realistic clinical decision making.
Collapse
Affiliation(s)
- Stavros Spiliopoulos
- grid.5216.00000 0001 2155 08002nd Department of Radiology, Interventional Radiology Unit, Medical School, National and Kapodistrian University of Athens, “Attikon” University Hospital, Athens, Greece
- grid.417581.e0000 0000 8678 4766Department of Clinical Radiology, Interventional Radiology Unit, Aberdeen Royal Infirmary, NHS Grampian, Aberdeen, AB25 2ZN UK
| | - Konstantinos Katsanos
- grid.412458.eDepartment of Interventional Radiology, School of Medicine, Patras University Hospital, Rion, Greece
| | - Ioannis Paraskevopoulos
- grid.417581.e0000 0000 8678 4766Department of Clinical Radiology, Interventional Radiology Unit, Aberdeen Royal Infirmary, NHS Grampian, Aberdeen, AB25 2ZN UK
| | - Martin Mariappan
- grid.417581.e0000 0000 8678 4766Department of Clinical Radiology, Interventional Radiology Unit, Aberdeen Royal Infirmary, NHS Grampian, Aberdeen, AB25 2ZN UK
| | - Georgios Festas
- grid.5216.00000 0001 2155 08002nd Department of Radiology, Interventional Radiology Unit, Medical School, National and Kapodistrian University of Athens, “Attikon” University Hospital, Athens, Greece
| | - Panagiotis Kitrou
- grid.412458.eDepartment of Interventional Radiology, School of Medicine, Patras University Hospital, Rion, Greece
| | - Christos Papageorgiou
- grid.412458.eDepartment of Interventional Radiology, School of Medicine, Patras University Hospital, Rion, Greece
| | - Lazaros Reppas
- grid.5216.00000 0001 2155 08002nd Department of Radiology, Interventional Radiology Unit, Medical School, National and Kapodistrian University of Athens, “Attikon” University Hospital, Athens, Greece
| | - Konstantinos Palialexis
- grid.5216.00000 0001 2155 08002nd Department of Radiology, Interventional Radiology Unit, Medical School, National and Kapodistrian University of Athens, “Attikon” University Hospital, Athens, Greece
| | - Dimitrios Karnabatidis
- grid.412458.eDepartment of Interventional Radiology, School of Medicine, Patras University Hospital, Rion, Greece
| | - Elias Brountzos
- grid.5216.00000 0001 2155 08002nd Department of Radiology, Interventional Radiology Unit, Medical School, National and Kapodistrian University of Athens, “Attikon” University Hospital, Athens, Greece
| |
Collapse
|
24
|
Patel TV, Canario DAH, Isaacson AJ, Mauro DM. Vascular Etiologies of the Acute Abdomen. Semin Roentgenol 2020; 55:417-426. [PMID: 33220787 DOI: 10.1053/j.ro.2020.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tirth V Patel
- Department of Radiology, University of North Carolina School of Medicine, Chapel Hill, NC
| | | | - Ari J Isaacson
- Department of Radiology, University of North Carolina School of Medicine, Chapel Hill, NC
| | - David M Mauro
- Department of Radiology, University of North Carolina School of Medicine, Chapel Hill, NC.
| |
Collapse
|
25
|
Davrieux CF, Palermo M, Cúneo T, Zanutini D, Giménez ME. What is the Role of Image-Guided Endovascular Surgery in Postbariatric Surgery Bleeding Complications? J Laparoendosc Adv Surg Tech A 2020; 31:146-151. [PMID: 32936031 DOI: 10.1089/lap.2020.0696] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Background: Obesity treatment requires surgical procedures included in bariatric surgery. Bleeding complications are reported in 1%-4%. Image-guided surgery (IGS) includes minimally invasive procedures that have the advantage of less aggression to the patient, fewer complications, and a quick recovery. Endovascular therapy by interventional radiology (IR) is a minimally invasive image-guided procedure widely used in central, peripheral, and splanchnic vascular pathology. Treatment of postoperative bleeding in bariatric surgery can be aided by image-guided endovascular procedures. Objectives: The aim of this study is to carry out an update on the application of IR in bariatric surgery bleeding complications. Bleeding Complications: General rate of postoperative complications in bariatric surgery is 0%-10%. Postoperative bleeding (1%-4%) can be gastrointestinal (endoscopic treatment) or intra-abdominal (surgical treatment/relaparoscopy). In the case of arterial vascular lesions that cannot be resolved either endoscopically or surgically, the option of endovascular treatment with IR should be considered. Conclusions: Endovascular approach through IR and IGS in bleeding complications after bariatric surgery is presented as a valid minimally invasive therapy option in this group of patients.
Collapse
Affiliation(s)
- Carlos Federico Davrieux
- DAICIM Foundation (Teaching, Research, Assistance in Minimal Invasive Surgery), Buenos Aires, Argentina.,Department of Surgery, Sanatorio de la Mujer, Rosario, Argentina
| | - Mariano Palermo
- DAICIM Foundation (Teaching, Research, Assistance in Minimal Invasive Surgery), Buenos Aires, Argentina.,Department of Bariatric Surgery, Diagnomed, Buenos Aires, Argentina.,School of Medicine, University of Buenos Aires, Buenos Aires, Argentina
| | - Tomás Cúneo
- Department of Interventional Radiology, Sanatorio Británico, Rosario, Argentina
| | - Daniel Zanutini
- Department of Interventional Radiology, Sanatorio Británico, Rosario, Argentina
| | - Mariano E Giménez
- DAICIM Foundation (Teaching, Research, Assistance in Minimal Invasive Surgery), Buenos Aires, Argentina.,School of Medicine, University of Buenos Aires, Buenos Aires, Argentina.,IRCAD (Institute for Research on Cancer of the Digestive System), Strasbourg, France.,IHU-Strasbourg (Hospital-University Institute), Strasbourg, France
| |
Collapse
|
26
|
Rodriguez CT, Bittle JSH, Kwarcinski TJ, Juarez S, Hinshelwood JR. Dieulafoy lesions and gastrointestinal bleeding. Proc (Bayl Univ Med Cent) 2020; 33:633-634. [PMID: 33100551 DOI: 10.1080/08998280.2020.1778405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
A Dieulafoy lesion is a dilated, submucosal artery that can erode through the adjacent gastrointestinal mucosa, resulting in spontaneous rupture and massive gastrointestinal bleeding. If misdiagnosed or left untreated, these lesions have up to an 80% mortality rate. Here we present the case of a 70-year-old woman with abdominal pain who was found to have a submucosal gastric vascular structure on computed tomography angiography of the pulmonary arteries. She underwent outpatient esophagogastroduodenoscopy to confirm the presence of a gastric Dieulafoy lesion and was successfully treated with mesenteric angiography and transarterial embolization.
Collapse
Affiliation(s)
| | | | | | - Selina Juarez
- Department of Surgery, Prisma Health Systems/Greenville Medical Center, Greenville, South Carolina
| | | |
Collapse
|
27
|
Tersalvi G, Biasco L, Cioffi GM, Pedrazzini G. Acute Coronary Syndrome, Antiplatelet Therapy, and Bleeding: A Clinical Perspective. J Clin Med 2020; 9:E2064. [PMID: 32630233 PMCID: PMC7408729 DOI: 10.3390/jcm9072064] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 06/27/2020] [Accepted: 06/29/2020] [Indexed: 02/06/2023] Open
Abstract
Inhibition of platelet function by means of dual antiplatelet therapy (DAPT) is the cornerstone of treatment of acute coronary syndrome (ACS). While preventing ischemic recurrences, inhibition of platelet function is clearly associated with an increased bleeding risk, a feared complication that may lead to significant morbidity and mortality. Since bleeding risk management is intrinsically associated with therapeutic adjustments undertaken during the whole clinical history of patients with acute coronary syndrome, single decisions taken from the very first day to years of follow-up might be decisive. This review aims at providing a clinically oriented, patient-tailored approach in reducing the risk and manage bleeding complications in ACS patients treated with DAPT. The steps in clinical decision making from the day of ACS to follow-up are analyzed. New treatment strategies to enhance the safety of DAPT are also described.
Collapse
Affiliation(s)
- Gregorio Tersalvi
- Division of Cardiology, Fondazione Cardiocentro Ticino, 6900 Lugano, Switzerland;
- Department of Internal Medicine, Hirslanden Klinik St. Anna, 6006 Lucerne, Switzerland
| | - Luigi Biasco
- Azienda Sanitaria Locale Torino 4, Ospedale di Ciriè, 10073 Ciriè, Italy;
- Department of Biomedical Sciences, University of Italian Switzerland, 6900 Lugano, Switzerland
| | - Giacomo Maria Cioffi
- Division of Cardiology, Fondazione Cardiocentro Ticino, 6900 Lugano, Switzerland;
- Department of Cardiology, Kantonsspital Luzern, 6000 Lucerne, Switzerland
| | - Giovanni Pedrazzini
- Division of Cardiology, Fondazione Cardiocentro Ticino, 6900 Lugano, Switzerland;
- Department of Biomedical Sciences, University of Italian Switzerland, 6900 Lugano, Switzerland
| |
Collapse
|
28
|
Hakimian S, Patel K, Cave D. Sending in the ViCE Squad: Evaluation and Management of Patients with Small Intestinal Bleeding. Dig Dis Sci 2020; 65:1307-1314. [PMID: 32162121 DOI: 10.1007/s10620-020-06190-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Bleeding from the small intestine remains a clinically challenging diagnostic and therapeutic problem. It may be minor, requiring only supplemental iron treatment, to patients who have severe overt bleeding that requires multimodal intervention. This article provides an up-to-date review of the state-of-the-art of diagnosis and treatment of small intestinal bleeding.
Collapse
Affiliation(s)
- Shahrad Hakimian
- Division of Gastroenterology, Department of Medicine, UMass Memorial Medical Center, 55 Lake Ave. N., Worcester, MA, 01655, USA
| | - Krunal Patel
- Division of Gastroenterology, Department of Medicine, UMass Memorial Medical Center, 55 Lake Ave. N., Worcester, MA, 01655, USA
| | - David Cave
- Division of Gastroenterology, Department of Medicine, UMass Memorial Medical Center, 55 Lake Ave. N., Worcester, MA, 01655, USA.
| |
Collapse
|
29
|
Ghodasara N, Liddell R, Fishman EK, Johnson PT. High-Value Multidetector CT Angiography of the Superior Mesenteric Artery: What Emergency Medicine Physicians and Interventional Radiologists Need to Know. Radiographics 2020; 39:559-577. [PMID: 30844348 DOI: 10.1148/rg.2019180131] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The superior mesenteric artery (SMA) provides vital blood supply to the midgut, and an acute abnormality can rapidly precipitate bowel ischemia and infarction and lead to morbidity and mortality. Vascular diseases that acutely compromise the SMA threaten its tributaries and include occlusion, dissection, aneurysm rupture, pseudoaneurysm, vasculitis, and SMA branch hemorrhage into the bowel. Emergency medicine physicians rely on the radiologist to identify SMA abnormalities, to characterize them, and to detail findings that guide the appropriate triage of these patients. As such, radiologists must be cognizant of the features that influence patient treatment to assist vascular surgeons and interventional radiologists in decision making. Some patients can be treated medically, while clinical and radiographic findings may suggest the need for interventional or surgical repair of the artery. In the latter case, multidetector CT findings aid in determining which of the various surgical and endovascular treatment options is optimal, and both vascular and gastrointestinal sequelae of acute SMA abnormalities contribute to these determinations. The authors review acute life-threatening conditions involving the SMA including acute occlusion, dissection, aneurysm, pseudoaneurysm, and hemorrhage and discuss the vascular and gastrointestinal multidetector CT findings in each of these conditions that help to guide surgical and interventional management. ©RSNA, 2019.
Collapse
Affiliation(s)
- Nevil Ghodasara
- From the Divisions of Body CT (N.G., E.K.F., P.T.J.) and Interventional Radiology (R.L.), Russell H. Morgan Department of Radiology and Radiologic Science, Johns Hopkins Hospital, 601 N Caroline St, Room 4223, Baltimore, MD 21287
| | - Robert Liddell
- From the Divisions of Body CT (N.G., E.K.F., P.T.J.) and Interventional Radiology (R.L.), Russell H. Morgan Department of Radiology and Radiologic Science, Johns Hopkins Hospital, 601 N Caroline St, Room 4223, Baltimore, MD 21287
| | - Elliot K Fishman
- From the Divisions of Body CT (N.G., E.K.F., P.T.J.) and Interventional Radiology (R.L.), Russell H. Morgan Department of Radiology and Radiologic Science, Johns Hopkins Hospital, 601 N Caroline St, Room 4223, Baltimore, MD 21287
| | - Pamela T Johnson
- From the Divisions of Body CT (N.G., E.K.F., P.T.J.) and Interventional Radiology (R.L.), Russell H. Morgan Department of Radiology and Radiologic Science, Johns Hopkins Hospital, 601 N Caroline St, Room 4223, Baltimore, MD 21287
| |
Collapse
|
30
|
Kudaravalli P, Saleem SA, Pendela VS, Arif MO. Rare Complication of Interventional Radiology-guided Arterial Embolization of the Gastroduodenal Artery in the Setting of Acute Gastrointestinal Bleed: Migrated Coils in the Duodenum. Cureus 2020; 12:e7365. [PMID: 32328377 PMCID: PMC7174856 DOI: 10.7759/cureus.7365] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 03/20/2020] [Indexed: 12/30/2022] Open
Abstract
A 91-year-old male presented to the emergency room with hemodynamically significant upper gastrointestinal bleeding. The patient underwent an esophagogastroduodenoscopy (EGD), which showed frank blood in the duodenum interfering with the visualization. Hence, the patient underwent urgent interventional radiology (IR)-guided arteriogram and embolization. An EGD done 48 hours later showed a giant, non-bleeding, cratered duodenal ulcer with a visible vessel and vascular coils partially protruding into the duodenal bulb lumen. The patient had no evidence of bleeding post embolization. The patient presented three months later with abdominal pain. Computed tomography (CT) abdomen showed multiple liver abscesses. IR-guided drainage of abscesses was performed, and the culture grew Streptococcus intermedius. Magnetic resonance cholangiopancreatography (MRCP), endoscopic retrograde cholangiopancreatography (ERCP), and barium enema were unremarkable. The patient was treated with a prolonged course of intravenous (IV) antibiotics and recovered without any further issues. IR guided arterial embolization can be lifesaving in cases where GI bleeding cannot be controlled endoscopically, however, it can lead to serious complications, including endovascular coil migration into the gastrointestinal (GI) lumen causing infection and re-bleeding. Endovascular coil migration can occur immediately or several years later, which can result in fatal bleeding and infection. The best approach to prevent and manage migrated endovascular coils in the GI lumen remains unclear.
Collapse
Affiliation(s)
- Pujitha Kudaravalli
- Internal Medicine, State University of New York (SUNY) Upstate Medical University, Syracuse, USA
| | - Sheikh A Saleem
- Gastroenterology, State University of New York (SUNY) Upstate Medical University, Syracuse, USA
| | | | - Muhammad Osman Arif
- Gastroenterology, State University of New York (SUNY) Upstate Medical University, Syracuse, USA
| |
Collapse
|
31
|
Jiménez CE, Randial L, Quiroga F. Manejo endovascular de la hemorragia digestiva, experiencia del Hospital Universitario Clínica San Rafael. REVISTA COLOMBIANA DE CIRUGÍA 2019. [DOI: 10.30944/20117582.436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Introducción. La hemorragia digestiva ocasiona el 2 % de las hospitalizaciones; se clasifica en alta o baja, la primera se presenta en el 80 % de casos. Después de la estabilización hemodinámica, se determinan la causa y el tratamiento mediante la endoscopia; no obstante, esta falla en 10 a 20 % de los casos, y del 15 al 20 % requieren cirugía mayor, con una mortalidad de más del 40 %. El tratamiento para la hemorragia digestiva mediante la formación de émbolos de los vasos mesentéricos, es una conducta bien establecida, produce buenos resultados, evita la cirugía y disminuye la morbimortalidad. Objetivos. Determinar la indicación y el éxito del tratamiento endovascular para la hemorragia digestiva en nuestra institución. Materiales y métodos. estudio retrospectivo y descriptivo, se incluyeron 10 pacientes que requirieron la urgente formación de émbolos por falla o imposibilidad del manejo endoscópico, y que presentaban gran riesgo quirúrgico y anestésico con la técnica abierta. Se evaluaron la causa de la hemorragia, la arteria comprometida, los hallazgos angiográficos, la hemoglobina antes y después de la formación de los émbolos, la reincidencia de la hemorragia, las complicaciones, la necesidad de intervención quirúrgica, la eficacia del procedimiento y la mortalidad a 30 días. Resultados. Todos los pacientes se intervinieron por vía endovascular, para la oclusión selectiva de las arterias comprometidas. La hemorragia se controló en todos ellos. Se presentaron dos muertes tempranas (<30 días) no asociadas con el procedimiento. No hubo complicaciones secundarias a la formación de los émbolos o al acceso percutáneo y, tampoco, necesidad de cirugías mayores posteriores para controlar la hemorragia. Conclusión. Los métodos endovasculares para controlar la hemorragia digestiva son eficaces, no se acompañan de complicaciones, y disminuyen la morbimortalidad y la necesidad de cirugías mayores. Se requieren estudios con mayor número de pacientes para lograr un mayor grado de certeza.
Collapse
|
32
|
Hu J, Albadawi H, Oklu R, Chong BW, Deipolyi AR, Sheth RA, Khademhosseini A. Advances in Biomaterials and Technologies for Vascular Embolization. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1901071. [PMID: 31168915 PMCID: PMC7014563 DOI: 10.1002/adma.201901071] [Citation(s) in RCA: 112] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 03/24/2019] [Indexed: 05/03/2023]
Abstract
Minimally invasive transcatheter embolization is a common nonsurgical procedure in interventional radiology used for the deliberate occlusion of blood vessels for the treatment of diseased or injured vasculature. A wide variety of embolic agents including metallic coils, calibrated microspheres, and liquids are available for clinical practice. Additionally, advances in biomaterials, such as shape-memory foams, biodegradable polymers, and in situ gelling solutions have led to the development of novel preclinical embolic agents. The aim here is to provide a comprehensive overview of current and emerging technologies in endovascular embolization with respect to devices, materials, mechanisms, and design guidelines. Limitations and challenges in embolic materials are also discussed to promote advancement in the field.
Collapse
Affiliation(s)
- Jingjie Hu
- Division of Vascular & Interventional Radiology, Minimally Invasive Therapeutics Laboratory, Mayo Clinic, 13400 East Shea Blvd., Scottsdale, Arizona 85259, USA
| | - Hassan Albadawi
- Division of Vascular & Interventional Radiology, Minimally Invasive Therapeutics Laboratory, Mayo Clinic, 13400 East Shea Blvd., Scottsdale, Arizona 85259, USA
| | - Rahmi Oklu
- Division of Vascular & Interventional Radiology, Minimally Invasive Therapeutics Laboratory, Mayo Clinic, 13400 East Shea Blvd., Scottsdale, Arizona 85259, USA
| | - Brian W Chong
- Departments of Radiology and Neurological Surgery, Mayo Clinic, 13400 East Shea Blvd., Scottsdale, Arizona 85259, USA
| | - Amy R. Deipolyi
- Department of Interventional Radiology, Memorial Sloan Kettering Cancer Center, Weill Cornell Medical Center, 1275 York Avenue, New York, New York 10065, USA
| | - Rahul A. Sheth
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77054, USA
| | - Ali Khademhosseini
- Department of Bioengineering, Department of Radiological Sciences, Department of Chemical and Biomolecular Engineering, Center for Minimally Invasive Therapeutics, California Nanosystems Institute, University of California, 410 Westwood Plaza, Los Angeles, California 90095, USA
| |
Collapse
|
33
|
Siau K, Chapman W, Sharma N, Tripathi D, Iqbal T, Bhala N. Management of acute upper gastrointestinal bleeding: an update for the general physician. J R Coll Physicians Edinb 2019; 47:218-230. [PMID: 29465096 DOI: 10.4997/jrcpe.2017.303] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Acute upper gastrointestinal bleed (AUGIB) is one of the most common medical emergencies in the UK, with roughly one presentation every 6 min. Despite advances in therapeutics and endoscopy provision, mortality following AUGIB over the last two decades has remained high, with over 9,000 deaths annually in the UK; consequently, several national bodies have published UK-relevant guidelines. Despite this, the 2015 UK National Confidential Enquiry into Patient Outcome and Death in AUGIB highlighted variations in practice, raised concerns regarding suboptimal patient care and released a series of recommendations. This review paper incorporates the latest available evidence and UK-relevant guidelines to summarise the optimal pre-endoscopic, endoscopic, and post-endoscopic approach to and management of non-variceal and variceal AUGIB that will be of practical value to both general physicians and gastroenterologists.
Collapse
Affiliation(s)
- K Siau
- N Bhala, Department of Gastroenterology, University Hospital, Birmingham, Mindelsohn Way, Birmingham B15 2TH, UK.
| | | | | | | | | | | |
Collapse
|
34
|
Ahn T, Roberts MJ, Navaratnam A, Chung E, Wood ST. Wunder-women: Systematic review of causes, treatment and outcomes of Wunderlich syndrome during pregnancy. JOURNAL OF CLINICAL UROLOGY 2019. [DOI: 10.1177/2051415818759367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objective: The objective of this article is to conduct a contemporary literature review on Wunderlich syndrome, or spontaneous renal haemorrhage (SRH), among pregnant women to describe contemporary aetiology, investigations and management patterns. Methods: A systematic review of MEDLINE and CENTRAL in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines was performed. All articles, including case reports and case series on SRH published from 2000 to 2016, were included. Full-text manuscripts describing SRH among pregnant women were reviewed for clinical parameters, which were collated and analysed. Results: Twenty cases of SRH in pregnant women were identified. The median age and gestation were 32.1 years and 26.5 weeks, respectively, with SRH most commonly occurring in the third trimester (nine patients; 45%) and due to renal neoplasm, specifically angiomyolipoma (AML; 12 patients; 60%), followed by renal artery aneurysm (RAA; five patients; 25%). Surgical intervention (55%) was most commonly used for acute SRH. Foetal demise was not uncommon (15%). Conclusions: SRH in pregnant women is an uncommon but complex urological and obstetric emergency with potentially catastrophic consequences. A multidisciplinary approach is key to timely diagnosis and appropriate management considering the well-being both of mother and foetus. Pre-emptive diagnosis and intervention may reduce complications. Level of evidence: 4
Collapse
Affiliation(s)
- Thomas Ahn
- Department of Urology, Princess Alexandra Hospital, Australia
| | - Matthew J Roberts
- Department of Urology, Princess Alexandra Hospital, Australia
- Faculty of Medicine, The University of Queensland, Australia
- Centre for Clinical Research, The University of Queensland, Australia
| | | | - Eric Chung
- Department of Urology, Princess Alexandra Hospital, Australia
- Faculty of Medicine, The University of Queensland, Australia
- AndroUrology Centre, Australia
| | - Simon T Wood
- Department of Urology, Princess Alexandra Hospital, Australia
- Faculty of Medicine, The University of Queensland, Australia
- Centre for Kidney Disease Research, Translational Research Institute, Australia
| |
Collapse
|
35
|
Shimpi TR, Shikhare SN, Chung R, Wu P, Peh WCG. Imaging of Gastrointestinal and Abdominal Emergencies in Binge Drinking. Can Assoc Radiol J 2019; 70:52-61. [PMID: 30691564 DOI: 10.1016/j.carj.2018.10.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Revised: 08/30/2018] [Accepted: 10/20/2018] [Indexed: 12/19/2022] Open
Abstract
Excess alcohol consumption is a leading cause of preventable morbidity and mortality globally. The pattern of consumption of alcoholic beverages has changed in our society in the recent past, with binge drinking becoming more and more common, especially among young adults. Abdominal pain following alcohol consumption can be secondary to a wide range of pathologies, the treatment algorithm of which can range from medical supportive treatment to more invasive life-saving procedures such as transarterial embolization and emergency laparotomy. Correct diagnosis, differentiation among these conditions, and implementing the correct management algorithm is heavily reliant on accurate and appropriate imaging. We review the pathophysiology, clinical presentation, imaging features and management options of acute abdominal emergencies secondary to binge drinking, based on a selection of illustrative cases.
Collapse
Affiliation(s)
- Trishna R Shimpi
- Department of Diagnostic Radiology, Khoo Teck Puat Hospital, Singapore.
| | - Sumer N Shikhare
- Department of Diagnostic Radiology, Khoo Teck Puat Hospital, Singapore
| | - Raymond Chung
- Department of Diagnostic Radiology, Khoo Teck Puat Hospital, Singapore
| | - Peng Wu
- Department of Diagnostic Radiology, Khoo Teck Puat Hospital, Singapore
| | - Wilfred C G Peh
- Department of Diagnostic Radiology, Khoo Teck Puat Hospital, Singapore
| |
Collapse
|
36
|
Chapman W, Siau K, Thomas F, Ernest S, Begum S, Iqbal T, Bhala N. Acute upper gastrointestinal bleeding: a guide for nurses. ACTA ACUST UNITED AC 2019; 28:53-59. [PMID: 30620657 DOI: 10.12968/bjon.2019.28.1.53] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
This article outlines latest evidence-based care for patients with acute upper gastrointestinal (GI) bleeding. It aims to help gastroenterology and general medical ward nurses plan nursing interventions and understand the diagnostic treatment options available. Acute upper GI bleeding can present as variceal or non-variceal bleeding and has a high death rate. Endoscopy is used for diagnosis and to provide therapy, prior to which the patient should be adequately resuscitated and assessed. Various therapies can be initiated at endoscopy, depending on the source of bleeding. If bleeding continues in spite of these therapies, further interventions such as the Sengstaken tube, oesophageal stents, radiological or surgical treatments may be required. After endoscopy, it is important to have a plan for ongoing treatment. Patients may require acid suppression treatment or eradication of Helicobacter pylori as part of their treatment plan. They may in additional require correction of their haemoglobin levels and follow-up endoscopy. It is essential that nurses caring for such patients are aware of the current UK guidance and help patients to adhere to agreed treatment plans.
Collapse
Affiliation(s)
- Warren Chapman
- Advanced Clinical Practitioner (Endoscopist), Department of Gastroenterology, Queen Elizabeth Hospital, Birmingham
| | - Keith Siau
- Endoscopy Research Fellow, Dudley Group Hospitals NHS Foundation Trust, Dudley
| | - Fiona Thomas
- Endoscopy Senior Sister, Department of Gastroenterology, Queen Elizabeth Hospital, Birmingham
| | - Selvajothi Ernest
- Advanced Clinical Practitioner (Endoscopist), Department of Gastroenterology, Queen Elizabeth Hospital, Birmingham
| | - Shriya Begum
- Endoscopy Sister, Department of Gastroenterology, Queen Elizabeth Hospital, Birmingham
| | - Tariq Iqbal
- Consultant Gastroenterologist, Department of Gastroenterology, Queen Elizabeth Hospital, Birmingham
| | - Neeraj Bhala
- Consultant Gastroenterologist, Department of Gastroenterology, Queen Elizabeth Hospital, Birmingham
| |
Collapse
|
37
|
Wells ML, Hansel SL, Bruining DH, Fletcher JG, Froemming AT, Barlow JM, Fidler JL. CT for Evaluation of Acute Gastrointestinal Bleeding. Radiographics 2018; 38:1089-1107. [PMID: 29883267 DOI: 10.1148/rg.2018170138] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Acute gastrointestinal (GI) bleeding is common and necessitates rapid diagnosis and treatment. Bleeding can occur anywhere throughout the GI tract and may be caused by many types of disease. The variety of enteric diseases that cause bleeding and the tendency for bleeding to be intermittent may make it difficult to render a diagnosis. The workup of GI bleeding is frequently prolonged and expensive, with examinations commonly needing to be repeated. The use of computed tomography (CT) for evaluation of acute GI bleeding is gaining popularity because it can be used to rapidly diagnose active bleeding and nonbleeding bowel disease. The CT examinations used to evaluate acute GI bleeding include CT angiography and multiphase CT enterography. Understanding the clinical evaluation of acute GI bleeding, including the advantages and limitations of endoscopic evaluation, is necessary for the appropriate selection of patients who may benefit from CT. Multiphase CT enterography is used primarily to evaluate stable patients who have undergone upper and lower endoscopy without identification of a bleeding source. CT angiography is used to examine stable and unstable patients who respond to resuscitation, are believed to be actively bleeding, and are considered unlikely to have an upper GI source of hemorrhage. In the emergent setting, CT may yield critical information regarding the presence, location, and cause of active bleeding-data that can guide the choice of subsequent therapy. Recent developments in the use of and techniques for performing CT angiography have made it a potential first-line tool for evaluating acute GI bleeding. ©RSNA, 2018.
Collapse
Affiliation(s)
- Michael L Wells
- From the Departments of Radiology (M.L.W., J.G.F., A.T.F., J.M.B., J.L.F.) and Gastroenterology (S.L.H., D.H.B.), Mayo Clinic, 200 First St SW, Rochester, MN 55905
| | - Stephanie L Hansel
- From the Departments of Radiology (M.L.W., J.G.F., A.T.F., J.M.B., J.L.F.) and Gastroenterology (S.L.H., D.H.B.), Mayo Clinic, 200 First St SW, Rochester, MN 55905
| | - David H Bruining
- From the Departments of Radiology (M.L.W., J.G.F., A.T.F., J.M.B., J.L.F.) and Gastroenterology (S.L.H., D.H.B.), Mayo Clinic, 200 First St SW, Rochester, MN 55905
| | - Joel G Fletcher
- From the Departments of Radiology (M.L.W., J.G.F., A.T.F., J.M.B., J.L.F.) and Gastroenterology (S.L.H., D.H.B.), Mayo Clinic, 200 First St SW, Rochester, MN 55905
| | - Adam T Froemming
- From the Departments of Radiology (M.L.W., J.G.F., A.T.F., J.M.B., J.L.F.) and Gastroenterology (S.L.H., D.H.B.), Mayo Clinic, 200 First St SW, Rochester, MN 55905
| | - John M Barlow
- From the Departments of Radiology (M.L.W., J.G.F., A.T.F., J.M.B., J.L.F.) and Gastroenterology (S.L.H., D.H.B.), Mayo Clinic, 200 First St SW, Rochester, MN 55905
| | - Jeff L Fidler
- From the Departments of Radiology (M.L.W., J.G.F., A.T.F., J.M.B., J.L.F.) and Gastroenterology (S.L.H., D.H.B.), Mayo Clinic, 200 First St SW, Rochester, MN 55905
| |
Collapse
|
38
|
Abstract
Non-variceal upper gastrointestinal bleeding continues to be an important cause of morbidity and mortality. The most common causes include peptic ulcer disease, Mallory-Weiss syndrome, erosive gastritis, duodenitis, esophagitis, malignancy, angiodysplasias and Dieulafoy's lesion. Initial assessment and early aggressive resuscitation significantly improves outcomes. Upper gastrointestinal endoscopy continues to be the gold standard for diagnosis and treatment. We present a comprehensive review of literature for the evaluation and management of non-variceal upper gastrointestinal bleeding.
Collapse
Affiliation(s)
- Ronald Samuel
- Department of Internal Medicine, University of Texas Medical Branch, Galveston, TX
| | - Mohammad Bilal
- Division of Gastroenterology & Hepatology, University of Texas Medical Branch, 7400 Jones Drive, Apt 724, Galveston, TX 77551.
| | - Obada Tayyem
- Department of Internal Medicine, University of Texas Medical Branch, Galveston, TX
| | - Praveen Guturu
- Division of Gastroenterology & Hepatology, University of Texas Medical Branch, 7400 Jones Drive, Apt 724, Galveston, TX 77551
| |
Collapse
|
39
|
Patrascu S, Ponz CB, Ananin SF, Soler EMT. A delayed acute complication of bariatric surgery: Gastric remnant haemorrhagic ulcer after Roux-en-Y gastric bypass. J Minim Access Surg 2018; 14:68-70. [PMID: 28928326 PMCID: PMC5749202 DOI: 10.4103/jmas.jmas_148_16] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Acute gastric remnant bleeding is an exceptionally rare complication when it occurs long after bariatric surgery. We present the case of a patient with a bleeding ulcer of the excluded stomach (i.e., the remnant), occurring 7 years after Roux-en-Y gastric bypass (RYGB) for morbid obesity. A computed tomography scan managed to locate the active bleeding source in the gastric remnant. During emergency laparotomy, a bleeding ulcer of the fundic region of the excluded stomach was identified. Total resection of the remnant was performed, with good post-operative recovery. To the best of our knowledge, this is the first full report of a significantly delayed haemorrhagic ulcer of the gastric remnant, occurring years after RYGB.
Collapse
Affiliation(s)
- Stefan Patrascu
- Department of Surgery, University of Medicine and Pharmacy Craiova, Craiova, Romania
| | | | | | | |
Collapse
|
40
|
Yu EY, Chandrasekharan P, Berzon R, Tay ZW, Zhou XY, Khandhar AP, Ferguson RM, Kemp SJ, Zheng B, Goodwill PW, Wendland MF, Krishnan KM, Behr S, Carter J, Conolly SM. Magnetic Particle Imaging for Highly Sensitive, Quantitative, and Safe in Vivo Gut Bleed Detection in a Murine Model. ACS NANO 2017; 11:12067-12076. [PMID: 29165995 PMCID: PMC5752588 DOI: 10.1021/acsnano.7b04844] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Gastrointestinal (GI) bleeding causes more than 300 000 hospitalizations per year in the United States. Imaging plays a crucial role in accurately locating the source of the bleed for timely intervention. Magnetic particle imaging (MPI) is an emerging clinically translatable imaging modality that images superparamagnetic iron-oxide (SPIO) tracers with extraordinary contrast and sensitivity. This linearly quantitative modality has zero background tissue signal and zero signal depth attenuation. MPI is also safe: there is zero ionizing radiation exposure to the patient and clinically approved tracers can be used with MPI. In this study, we demonstrate the use of MPI along with long-circulating, PEG-stabilized SPIOs for rapid in vivo detection and quantification of GI bleed. A mouse model genetically predisposed to GI polyp development (ApcMin/+) was used for this study, and heparin was used as an anticoagulant to induce acute GI bleeding. We then injected MPI-tailored, long-circulating SPIOs through the tail vein, and tracked the tracer biodistribution over time using our custom-built high resolution field-free line (FFL) MPI scanner. Dynamic MPI projection images captured tracer accumulation in the lower GI tract with excellent contrast. Quantitative analysis of the MPI images show that the mice experienced GI bleed rates between 1 and 5 μL/min. Although there are currently no human scale MPI systems, and MPI-tailored SPIOs need to undergo further development and evaluation, clinical translation of the technique is achievable. The robust contrast, sensitivity, safety, ability to image anywhere in the body, along with long-circulating SPIOs lends MPI outstanding promise as a clinical diagnostic tool for GI bleeding.
Collapse
Affiliation(s)
- Elaine Y Yu
- Department of Bioengineering, University of California , Berkeley, California 94720, United States
| | - Prashant Chandrasekharan
- Department of Bioengineering, University of California , Berkeley, California 94720, United States
| | - Ran Berzon
- Department of Bioengineering, University of California , Berkeley, California 94720, United States
| | - Zhi Wei Tay
- Department of Bioengineering, University of California , Berkeley, California 94720, United States
| | - Xinyi Y Zhou
- Department of Bioengineering, University of California , Berkeley, California 94720, United States
| | - Amit P Khandhar
- Lodespin Labs, LLC , Seattle, Washington 98103, United States
| | | | - Scott J Kemp
- Lodespin Labs, LLC , Seattle, Washington 98103, United States
| | - Bo Zheng
- Department of Bioengineering, University of California , Berkeley, California 94720, United States
| | | | - Michael F Wendland
- Department of Bioengineering, University of California , Berkeley, California 94720, United States
| | - Kannan M Krishnan
- Lodespin Labs, LLC , Seattle, Washington 98103, United States
- Department of Materials Science, University of Washington , Seattle, Washington 98195, United States
| | - Spencer Behr
- Department of Radiology and Biomedical Imaging, University of California San Francisco , San Francisco, California 94143, United States
| | - Jonathan Carter
- University of California San Francisco Medical Center , San Francisco, California 94143, United States
| | - Steven M Conolly
- Department of Bioengineering, University of California , Berkeley, California 94720, United States
- Department of Electrical Engineering and Computer Sciences, University of California , Berkeley, California 94720, United States
| |
Collapse
|
41
|
A Novel Technique to Measure the Intensity of Abnormality on GI Bleeding Scans: Development, Initial Implementation, and Correlation With Conventional Angiography. Clin Nucl Med 2017; 43:82-86. [PMID: 29215411 DOI: 10.1097/rlu.0000000000001920] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE Develop a technique to quantify intensity of lower gastrointestinal bleeding (LGIB) on Tc-labeled red blood cell (RBC) scintigraphy, correlate with angiography, and determine the tool's predictive value. MATERIALS AND METHODS An IRB-approved, single institution database query of GI bleeding scans performed between January 2013 and December 2015. Reports from all studies and imaging from all positive studies were reviewed. A technique was developed for scan analysis, allowing for calculation of percent increase of activity in the region of interest (ROI, area of bleeding) and ROI in the aorta and liver (controls). Database query determined which patients underwent angiography, and which had positive angiograms. Median ROI percent increase in patients with positive scintigraphy and positive angiography was compared to those with positive scintigraphy and negative angiography. RESULTS Of 194 bleeding scans performed during the study period, 71 were positive for active LGIB, 37 had angiography, and 9 had active contrast extravasation. The new tool was used to analyze the 37 cases with positive nuclear scans sent for angiography. Median percent increase in ROI activity was 50% in those with positive scan and positive angiogram and 26.8% in those with positive scan but negative angiogram. Using ROI percent change quartiles, we observed a statistically significant association between percent increase in ROI activity from baseline and the probability of having a positive angiogram (Cochran-Armitage trend test, P = 0.01), such that there are no positive angiogram cases when ROI change was <20% and a majority of the positive angiogram cases (67%) in the highest quartile. CONCLUSIONS Utilization of processing protocol to determine percent increase in activity from baseline within ROI of active LGIB on scintigraphy has predictive value in determining which patients will not benefit from conventional angiography.
Collapse
|
42
|
Werner DJ, Manner H, Nguyen-Tat M, Kloeckner R, Kiesslich R, Abusalim N, Rey JW. Endoscopic and angiographic management of lower gastrointestinal bleeding: Review of the published literature. United European Gastroenterol J 2017; 6:337-342. [PMID: 29774146 DOI: 10.1177/2050640617746299] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2017] [Accepted: 11/06/2017] [Indexed: 12/13/2022] Open
Abstract
Lower gastrointestinal bleeding is common and occurs often in elderly patients. In rare cases it is associated with hemorrhagic shock. A large number of such bleedings, which are often caused by colon diverticula, subside spontaneously. Alternatively they can be treated by endoscopic procedures successfully. Given the aging population of our society, the rising incidence of lower gastrointestinal tract bleeding and new anticoagulant therapies, some of the bleedings tend to be severe. Colonoscopy is the established standard procedure for the diagnosis and treatment of lower gastrointestinal bleeding. However, a small number of patients experience re-bleeding or shock; their bleeding does not resolve spontaneously and cannot be treated successfully by endoscopic procedures. In such patients, interventional radiology is very useful for the detection of bleeding and the achievement of hemostasis. Against this background we performed a literature search using PubMed to identify all relevant studies focused on the endoscopic and radiological management of lower gastrointestinal bleeding and present recent conclusions on the subject.
Collapse
Affiliation(s)
- David J Werner
- RNS Joint Practice, Department of Radiology, Helios Dr. Horst-Schmidt-Kliniken, Wiesbaden, Germany
| | - Hendrik Manner
- Department of Gastroenterology, Helios Dr. Horst-Schmidt-Kliniken, Wiesbaden, Germany
| | - Marc Nguyen-Tat
- First Department of Internal Medicine, University Medical Center, Mainz, Germany
| | - Roman Kloeckner
- Department of Diagnostic and Interventional Radiology, University Medical Center, Mainz, Germany
| | - Ralf Kiesslich
- Department of Gastroenterology, Helios Dr. Horst-Schmidt-Kliniken, Wiesbaden, Germany
| | - Nael Abusalim
- RNS Joint Practice, Department of Radiology, Helios Dr. Horst-Schmidt-Kliniken, Wiesbaden, Germany
| | - Johannes W Rey
- Department of Gastroenterology, Helios Dr. Horst-Schmidt-Kliniken, Wiesbaden, Germany
| |
Collapse
|
43
|
Koh FJ, Khor JL, Chew MH. An unusual case of giant ileal diverticulum-A case report. Int J Surg Case Rep 2017; 41:277-279. [PMID: 29126072 PMCID: PMC5683754 DOI: 10.1016/j.ijscr.2017.10.056] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2017] [Revised: 10/14/2017] [Accepted: 10/22/2017] [Indexed: 12/25/2022] Open
Abstract
Large ileal diverticula are extremely rare and bleeding complications can result in high overall mortality. Small bowel diverticulosis though uncommon has to be considered during workup for obscure gastrointestinal bleeding. Endoscopic treatment for small bowel diverticular bleeding is an alternative approach that can be considered for high-risk patients.
Small bowel diverticulosis is rare with an incidence of 1–2% in the general population. It is an uncommon cause of gastrointestinal bleeding that ranges from obscure to overt bleeding. Large ileal diverticula are extremely rare and bleeding complications can result in high overall mortality. A young gentleman presented with persistent per-rectal bleeding and drop in hemoglobin level. He was recently diagnosed with acute myeloid leukemia and was undergoing chemotherapy. A computed tomography scan of the abdomen and pelvis revealed a giant ileal diverticulum. In view of on-going bleeding, he underwent double balloon enteroscopy which revealed active bleeding from an ulcer within the giant ileal diverticulum and successful hemostasis was performed with hemostatic clips. Small bowel diverticulosis though uncommon has to be considered during workup for gastrointestinal bleeding. Endoscopic treatment is a modern approach towards small bowel diverticular bleeding that is effective and less invasive.
Collapse
Affiliation(s)
- Fang Ju Koh
- Department of Colorectal Surgery, Singapore General Hospital, 1 Hospital Drive, Singapore
| | - Jen Lock Khor
- Department of Gastroenterology, Singapore General Hospital, 1 Hospital Drive, Singapore
| | - Min Hoe Chew
- Department of Colorectal Surgery, Singapore General Hospital, 1 Hospital Drive, Singapore.
| |
Collapse
|
44
|
Changing etiology and management patterns for spontaneous renal hemorrhage: a systematic review of contemporary series. Int Urol Nephrol 2017; 49:1897-1905. [PMID: 28871505 DOI: 10.1007/s11255-017-1694-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 08/30/2017] [Indexed: 01/27/2023]
Abstract
OBJECTIVE To conduct a systematic literature review on spontaneous renal hemorrhage (SRH) in a contemporary cohort describing patterns in etiology and treatment. METHODS A systematic search of MEDLINE and CENTRAL databases was conducted to include articles, including case reports and case series on SRH published from 2000 to 2016. Full-text manuscripts were reviewed for clinical parameters which were collated and analyzed with univariate methods. RESULTS Seventy-nine publications met inclusion criteria, reporting on 102 cases. Renal neoplasms (56.9%) and polyarteritis nodosa (PAN) (11.8%) remained as the most common overall and vascular causes of SRH, respectively. Angiomyolipoma (AML) was the most common causative renal neoplasm (74.1%), and patients were more likely to be female and present with macroscopic hematuria than those with vasculitis, while malignant neoplasms were more common in men. Proportions of SRH due to malignant neoplasms (specifically renal cell carcinoma, RCC) were reported less than PAN. Among this contemporary series, transarterial embolization (TAE) was most commonly used for acute SRH (42.2%). CONCLUSIONS Renal neoplasms remain as the most common cause of SRH, of which AML predominates, while PAN is currently the second most common etiology in acute SRH, replacing RCC. Minimally invasive approaches, such as TAE and conservative/medical management, were preferred to initial surgery. SYSTEMATIC REVIEW REGISTRATION PROSPERO registration number CRD42017069222.
Collapse
|
45
|
Han Q, Qian C, Gabriel G, Krohmer S, Raissi D. Gastrointestinal bleeding from supraduodenal artery with aberrant origin. Radiol Case Rep 2017; 12:526-528. [PMID: 28828118 PMCID: PMC5551961 DOI: 10.1016/j.radcr.2017.04.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 04/18/2017] [Indexed: 11/26/2022] Open
Abstract
Angiography and endovascular embolization play an important role in controlling acute arterial upper gastrointestinal hemorrhage, particularly when endoscopic intervention fails to do so. In our case, the patient presented with recurrent life-threatening bleed in spite of multiple prior endoscopic interventions and gastroduodenal artery embolization. Our teaching points focus on the role of angiography in acute upper gastrointestinal bleed and when to conduct empiric embolization, while reviewing the supraduodenal artery as an atypical but important potential culprit for refractory upper gastrointestinal bleed.
Collapse
|
46
|
Shotar E, Soyer P, Barat M, Dautry R, Pocard M, Placé V, Camus M, Eveno C, Barret M, Dohan A. Diagnosis of acute overt gastrointestinal bleeding with CT-angiography: Comparison of the diagnostic performance of individual acquisition phases. Diagn Interv Imaging 2017; 98:857-863. [PMID: 28754326 DOI: 10.1016/j.diii.2017.06.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 06/29/2017] [Accepted: 06/30/2017] [Indexed: 02/06/2023]
Abstract
PURPOSE To compare the respective values of arterial phase, portal venous phase and combination of phases using 64-section multidetector computed tomography (MDCT) for diagnosing acute overt gastrointestinal bleeding (AOGIB). PATIENTS AND METHODS Forty-nine patients with AOGIB were included. There were 30 men and 19 women, with a mean age of 65.4±15.6 (SD) years [range, 34-91years]. Two observers reviewed MDCT examinations in consensus for presence of active bleeding, location of bleeding site and nature of causative lesion. The different acquisition phases were reviewed independently. RESULTS AOGIB was identified in 28/49 patients (57%) with the multiphasic set, in 26/49 patients (53%) with arterial phase and in 25/49 patients (51%) with portal venous phase. Multiphasic set helped locate the bleeding site in 40/49 patients (82%). The cause was elucidated in 23/49 patients (47%) with multiphasic set. The differences between set performances were not statistically significant. Sensitivity for depicting AOGIB with the multiphasic set was 92% and specificity was 76%. CONCLUSION Multiphasic 64-section MDCT has high diagnostic performances in patients with AOGIB. Further studies with a larger population are needed to reach statistical significance and demonstrate better diagnostic performance of multiphasic MDCT in comparison with the arterial or portal phase alone.
Collapse
Affiliation(s)
- E Shotar
- Department of Body and Interventional Imaging, hôpital Lariboisière, AP-HP, 2, rue Ambroise Paré, 75475 Paris cedex 10, France
| | - P Soyer
- Université Paris 5, Sorbonne Paris Cité, rue de l'école de médecine, 75006 Paris, France; UMR Inserm 965, hôpital Lariboisière, 2, rue Amboise-Paré, 75010 Paris, France; Department of Radiologie, hôpital Cochin, AP-HP, 27, rue du Faubourg Saint-Jacques, 75014 Paris, France
| | - M Barat
- Department of Body and Interventional Imaging, hôpital Lariboisière, AP-HP, 2, rue Ambroise Paré, 75475 Paris cedex 10, France
| | - R Dautry
- Department of Body and Interventional Imaging, hôpital Lariboisière, AP-HP, 2, rue Ambroise Paré, 75475 Paris cedex 10, France
| | - M Pocard
- Université Paris 5, Sorbonne Paris Cité, rue de l'école de médecine, 75006 Paris, France; UMR Inserm 965, hôpital Lariboisière, 2, rue Amboise-Paré, 75010 Paris, France; Department of Surgical Oncology, hôpital Lariboisière, AP-HP, 2, rue Ambroise Paré, 75475 Paris cedex 10, France
| | - V Placé
- Department of Body and Interventional Imaging, hôpital Lariboisière, AP-HP, 2, rue Ambroise Paré, 75475 Paris cedex 10, France
| | - M Camus
- Department of Gastroenterology, hôpital Saint-Antoine, AP-HP, 184, rue du Faubourg Saint-Antoine, 75012 Paris, France
| | - C Eveno
- Université Paris 5, Sorbonne Paris Cité, rue de l'école de médecine, 75006 Paris, France; UMR Inserm 965, hôpital Lariboisière, 2, rue Amboise-Paré, 75010 Paris, France; Department of Surgical Oncology, hôpital Lariboisière, AP-HP, 2, rue Ambroise Paré, 75475 Paris cedex 10, France
| | - M Barret
- Department of Gastroenterology, hôpital Cochin, AP-HP, 27, rue du Faubourg Saint-Jacques, 75014 Paris, France
| | - A Dohan
- Department of Body and Interventional Imaging, hôpital Lariboisière, AP-HP, 2, rue Ambroise Paré, 75475 Paris cedex 10, France; Université Paris 5, Sorbonne Paris Cité, rue de l'école de médecine, 75006 Paris, France; UMR Inserm 965, hôpital Lariboisière, 2, rue Amboise-Paré, 75010 Paris, France.
| |
Collapse
|
47
|
Soyer P, Fohlen A, Dohan A. Acute gastrointestinal bleeding: A slowly changing paradigm. Diagn Interv Imaging 2017; 98:451-453. [DOI: 10.1016/j.diii.2017.05.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
48
|
Shin JS, Shin JH, Ko HK, Kim JW, Yoon HK. Transcatheter arterial embolization for traumatic mesenteric bleeding: a 15-year, single-center experience. Diagn Interv Radiol 2017; 22:385-9. [PMID: 27306658 DOI: 10.5152/dir.2016.15413] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
PURPOSE We aimed to assess the safety and effectiveness of transcatheter arterial embolization (TAE) for mesenteric bleeding following trauma. METHODS From 2001 to 2015, 12 patients were referred to our interventional unit for mesenteric bleeding following trauma, based on clinical decisions and computed tomography (CT) images. After excluding one patient with no bleeding focus and one patient who underwent emergency surgery, a total of 10 patients (male:female ratio, 9:1; mean age, 52.1 years) who underwent super selective TAE of visceral arteries were included in this study. Technical and clinical success, complications, and 30-day mortality rate were analyzed. RESULTS In 10 patients who underwent TAE, the types of trauma were motor vehicle collision (n=6), fall (n=2), assault (n=1), and penetrating injury (n=1), and the bleeding arteries were in the pancreaticoduodenal arterial arcade (n=4), jejunal artery (n=3), colic artery (n=2), and sigmoid artery (n=1). N-butyl-2-cyanoacrylate (NBCA) (n=2), microcoils (n=2), and combinations of NBCA, microcoils, or gelatin sponge particles (n=6) were used as embolic agents. Technical success was achieved in all 10 patients, with immediate cessation of bleeding. Clinical success rate was 90% (9/10), and all patients were discharged with no further treatment required for mesenteric bleeding. However, one patient showed rebleeding 10 days later and underwent repeated TAE with successful result. There were no TAE-related ischemic complications such as bowel infarction. The 30-day mortality rate was 0%. CONCLUSION Our clinical experience suggests that TAE used to control mesenteric bleeding following trauma is safe and effective as a minimally invasive alternative to surgery.
Collapse
Affiliation(s)
- Jong Soo Shin
- Department of Radiology, Kyung Hee University Hospital at Gangdong, College of Medicine, Kyung Hee University, Seoul, Republic of Korea.
| | | | | | | | | |
Collapse
|
49
|
Bua-Ngam C, Norasetsingh J, Treesit T, Wedsart B, Chansanti O, Tapaneeyakorn J, Panpikoon T, Vallibhakara SAO. Efficacy of emergency transarterial embolization in acute lower gastrointestinal bleeding: A single-center experience. Diagn Interv Imaging 2017; 98:499-505. [PMID: 28341118 DOI: 10.1016/j.diii.2017.02.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 02/17/2017] [Accepted: 02/24/2017] [Indexed: 12/11/2022]
Abstract
PURPOSE The purpose of this study was to assess the safety and efficacy of transcatheter arterial embolization (TAE) in the treatment of acute lower gastrointestinal bleeding (LGIB) and to determine the potential factors that influence treatment outcome. MATERIAL AND METHODS A total of 38 patients with acute LGIB who were treated by TAE were retrospectively included. There were 24 men and 14 women, with a mean age of 61 years (range: 9-84 years). Patient characteristics, laboratory findings, treatments, causes of bleeding, angiographic findings, and outcomes were reviewed. RESULTS Active contrast extravasation was observed in 26/38 patients (68.4%) and was the most frequent angiographic finding, followed by abnormal mucosal staining (8/38; 21.1%) and tumor staining (4/38; 10.5%). Technical success of TAE was obtained in 35/38 patients (92%) whereas technical failure was observed in 3/38 patients (8%). Clinical success rate following TAE was 63%. Bowel ischemia occurred in 5/38 patients (13%) following TAE; mild ischemia without sequelae was observed in 3 patients and severe ischemias with bowel perforation requiring surgery in 2 patients. No variables were identified as significant predictive factors of failed TAE. CONCLUSION TAE is a safe and effective treatment to control massive acute LGIB, especially in the emergency setting with a clinical success rate of 63%.
Collapse
Affiliation(s)
- C Bua-Ngam
- Vascular and body interventional radiology unit, department of diagnostic and therapeutic radiology, faculty of medicine, Ramathibodi hospital, Mahidol university, 270, Rama VI Road, 10400 Ratchathewi, Bangkok, Thailand.
| | - J Norasetsingh
- Vascular and body interventional radiology unit, department of diagnostic and therapeutic radiology, faculty of medicine, Ramathibodi hospital, Mahidol university, 270, Rama VI Road, 10400 Ratchathewi, Bangkok, Thailand.
| | - T Treesit
- Vascular and body interventional radiology unit, department of diagnostic and therapeutic radiology, faculty of medicine, Ramathibodi hospital, Mahidol university, 270, Rama VI Road, 10400 Ratchathewi, Bangkok, Thailand.
| | - B Wedsart
- Vascular and body interventional radiology unit, department of diagnostic and therapeutic radiology, faculty of medicine, Ramathibodi hospital, Mahidol university, 270, Rama VI Road, 10400 Ratchathewi, Bangkok, Thailand.
| | - O Chansanti
- Vascular and body interventional radiology unit, department of diagnostic and therapeutic radiology, faculty of medicine, Ramathibodi hospital, Mahidol university, 270, Rama VI Road, 10400 Ratchathewi, Bangkok, Thailand.
| | - J Tapaneeyakorn
- Vascular and body interventional radiology unit, department of diagnostic and therapeutic radiology, faculty of medicine, Ramathibodi hospital, Mahidol university, 270, Rama VI Road, 10400 Ratchathewi, Bangkok, Thailand.
| | - T Panpikoon
- Vascular and body interventional radiology unit, department of diagnostic and therapeutic radiology, faculty of medicine, Ramathibodi hospital, Mahidol university, 270, Rama VI Road, 10400 Ratchathewi, Bangkok, Thailand.
| | - S A-O Vallibhakara
- Section of clinical epidemiology and biostatistics, faculty of medicine, Ramathibodi hospital, Mahidol university, Bangkok, Thailand.
| |
Collapse
|
50
|
Qiao P, Liu H, Yan X, Jia Z, Pi X. A Smart Capsule System for Automated Detection of Intestinal Bleeding Using HSL Color Recognition. PLoS One 2016; 11:e0166488. [PMID: 27902728 PMCID: PMC5130220 DOI: 10.1371/journal.pone.0166488] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Accepted: 10/28/2016] [Indexed: 12/22/2022] Open
Abstract
There are no ideal means for the diagnosis of intestinal bleeding diseases as of now, particularly in the small intestine. This study investigated an intelligent intestinal bleeding detection capsule system based on color recognition. After the capsule is swallowed, the bleeding detection module (containing a color-sensitive adsorptive film that changes color when absorbing intestinal juice,) is used to identify intestinal bleeding features. A hue-saturation-light color space method can be applied to detect bleeding according to the range of H and S values of the film color. Once bleeding features are recognized, a wireless transmission module is activated immediately to send an alarm signal to the outside; an in vitro module receives the signal and sends an alarm. The average power consumption of the entire capsule system is estimated to be about 2.1mW. Owing to its simplicity, reliability, and effectiveness, this system represents a new approach to the clinical diagnosis of intestinal bleeding diseases.
Collapse
Affiliation(s)
- Panpan Qiao
- Key Laboratory of Biorheological Science and Technology of Ministry of Education, Bioengineering College, Chongqing University, Chongqing, PR China
| | - Hongying Liu
- Key Laboratory of Biorheological Science and Technology of Ministry of Education, Bioengineering College, Chongqing University, Chongqing, PR China
- Chongqing Engineering Research Center of Medical Electronics, Chongqing, PR China
- * E-mail: (HYL); (XTP)
| | - Xueping Yan
- Key Laboratory of Biorheological Science and Technology of Ministry of Education, Bioengineering College, Chongqing University, Chongqing, PR China
| | - Ziru Jia
- Key Laboratory of Biorheological Science and Technology of Ministry of Education, Bioengineering College, Chongqing University, Chongqing, PR China
| | - Xitian Pi
- Key Laboratory of Biorheological Science and Technology of Ministry of Education, Bioengineering College, Chongqing University, Chongqing, PR China
- Key Laboratories for National Defense Science and Technology of innovative micro-nano devices and system technology, Chongqing University, Chongqing, PR China
- * E-mail: (HYL); (XTP)
| |
Collapse
|