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https://www.readbyqxmd.com/read/27913273/the-endocrine-vitamin-d-system-in-the-gut
#1
Antonio Barbáchano, Asunción Fernández-Barral, Gemma Ferrer-Mayorga, Alba Costales-Carrera, María Jesús Larriba, Alberto Muñoz
The active vitamin D metabolite 1α,25-dihydroxyvitamin D3 (1,25(OH)2D3) has important regulatory actions in the gut through endocrine and probably also intracrine, autocrine and paracrine mechanisms. By activating the vitamin D receptor (VDR), which is expressed at a high level in the small intestine and colon, 1,25(OH)2D3 regulates numerous genes that control gut physiology and homeostasis. 1,25(OH)2D3 is a major responsible for epithelial barrier function and calcium and phosphate absorption, and the host's defense against pathogens and the inflammatory response by several types of secretory and immune cells...
November 29, 2016: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/27912036/failure-to-redose-antibiotic-prophylaxis-in-long-surgery-increases-risk-of-surgical-site-infection
#2
Nongyao Kasatpibal, Joanne D Whitney, E Patchen Dellinger, Bala G Nair, Kenneth C Pike
BACKGROUND: Antibiotic prophylaxis is a key component of the prevention of surgical site infection (SSI). Failure to manage antibiotic prophylaxis effectively may increase the risk of SSI. This study aimed to examine the effects of antibiotic prophylaxis on SSI risk. METHODS: A retrospective cohort study was conducted among patients having general surgery between May 2012 and June 2015 at the University of Washington Medical Center. Peri-operative data extracted from hospital databases included patient and operation characteristics, intra-operative medication and fluid administration, and survival outcome...
December 2, 2016: Surgical Infections
https://www.readbyqxmd.com/read/27909438/donor-specific-regulatory-t-cells-acquired-from-tolerant-mice-bearing-cardiac-allograft-promote-mixed-chimerism-and-prolong-intestinal-allograft-survival
#3
Xiao-Fei Shen, Jin-Peng Jiang, Jian-Jun Yang, Wei-Zhong Wang, Wen-Xian Guan, Jun-Feng Du
The induction of donor-specific transplant tolerance has always been a central problem for small bowel transplantation (SBT), which is thought to be the best therapy for end-stage bowel failure. With the development of new tolerance-inducing strategies, mixed chimerism induced by co-stimulation blockade has become most potent for tolerance of allografts, such as skin, kidney, and heart. However, a lack of clinically available co-stimulation blockers has hindered efficient application in humans. Furthermore, unlike those for other types of solid organ transplantation, strategies to induce robust mixed chimerism for intestinal allografts have not been fully developed...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27908963/anomalous-mesenteric-vessel-a-rare-etiology-of-intermittent-partial-small-bowel-obstruction
#4
Natasha Hansraj, Shannon M Larabee, Kimberly M Lumpkins
We report a case of an 11-year with recurrent episodes of abdominal pain and vomiting. Diagnostic laparoscopy during a severe episode demonstrated an anomalous blood vessel incompletely encircling the bowel, leading to transient partial small bowel obstruction. This likely represents a remnant vessel from the omphalomesenteric duct. Recurrent abdominal pain and vomiting in the pediatric population requires careful history and physical exam, and a willingness to entertain unusual diagnoses.
December 1, 2016: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/27908521/neoplastic-diseases-of-the-small-bowel
#5
REVIEW
Emanuele Rondonotti, Anastasios Koulaouzidis, Diana E Yung, Surekha N Reddy, Julius Georgiou, Marco Pennazio
The incidence of small bowel tumors is increasing over time. Until recently, their diagnosis was delayed and it was often reached only at the time of surgery. New diagnostic tools, such as capsule endoscopy, device-assisted enteroscopy, and dedicated small bowel cross-sectional imaging techniques, have been introduced recently in clinical practice. The combination of these tools allows medical practitioners to detect small bowel tumors at an early stage and to reach a definite diagnosis before surgery, thus enabling minimally invasive treatments...
January 2017: Gastrointestinal Endoscopy Clinics of North America
https://www.readbyqxmd.com/read/27908519/inflammatory-disorders-of-the-small-bowel
#6
REVIEW
Jonathan A Leighton, Shabana F Pasha
The most common small bowel inflammatory disorders include Crohn disease, nonsteroidal antiinflammatory drug (NSAID) enteropathy, and celiac disease. Capsule endoscopy, computed tomography enterography, and magnetic resonance enterography have a complementary role in the diagnosis of Crohn disease and evaluation of patients with established Crohn disease. The higher risk of capsule retention with known Crohn disease and NSAID enteropathy can be minimized by cross-sectional imaging or the patency capsule. The main role of deep enteroscopy is tissue diagnosis, endoscopic management of small bowel lesions and strictures, and retrieval of retained capsules...
January 2017: Gastrointestinal Endoscopy Clinics of North America
https://www.readbyqxmd.com/read/27908518/gastrointestinal-angiodysplasia-diagnosis-and-management
#7
REVIEW
Christian S Jackson, Richard Strong
Gastrointestinal angiodysplasia (GIAD) are red flat arborized lesions that are found throughout the entire gastrointestinal tract. GIAD can vary in size and have a range of presentation from occult to life-threatening bleeding. The typical presentation is intermittent bleeding in the setting of iron deficiency anemia. Endoscopy is the primary means of diagnosis and endoscopic therapy is noted to be initially effective. However, rebleeding can be as high as 40% to 50% in patients with small bowel GIAD. This review describes the pathophysiology for the development of GIAD and the current roles of endoscopic, medical, and surgical therapy in its treatment...
January 2017: Gastrointestinal Endoscopy Clinics of North America
https://www.readbyqxmd.com/read/27908517/small-bowel-capsule-endoscopy-normal-findings-and-normal-variants-of-the-small-bowel
#8
REVIEW
Marco Pennazio, Emanuele Rondonotti, Anastasios Koulaouzidis
Small bowel capsule endoscopy (SBCE) remains the gold standard for practice for the diagnosis of small bowel disorders. A rather challenging task, for those who start to use this diagnostic modality, is the recognition of the typical anatomic landmarks and the distinction of normal small bowel anatomy from abnormal findings. The reader of SBCE images may also often encounter unusual views of the normal anatomy as well as various artifacts that need to be distinguished from pathologic findings. Experience gained through standard endoscopy is invaluable to the interpretation of capsule examinations; however, formalized training and credentialing in reading competency are essential...
January 2017: Gastrointestinal Endoscopy Clinics of North America
https://www.readbyqxmd.com/read/27908516/small-bowel-bleeding-updated-algorithm-and-outcomes
#9
REVIEW
Lauren B Gerson
Patients previously classified with "obscure gastrointestinal hemorrhage" should now be classified as "suspected small bowel bleeding" according to the 2015 American College of Gastroenterology guidelines. This article provides algorithms for how to manage patients with suspected small bowel bleeding, including utilization of second-look endoscopy and/or colonoscopy, video capsule endoscopy, computed tomographic enterography, magnetic resonance enterography, angiography, and deep enteroscopy.
January 2017: Gastrointestinal Endoscopy Clinics of North America
https://www.readbyqxmd.com/read/27908515/intraoperative-enteroscopy-is-there-still-a-role
#10
REVIEW
Thibault Voron, Gabriel Rahmi, Stephane Bonnet, Georgia Malamut, Philippe Wind, Christophe Cellier, Anne Berger, Richard Douard
Intraoperative enteroscopy (IOE) to explore obscure gastrointestinal bleeding is now rarely indicated. IOE allows complete small bowel exploration in 57% to 100% of cases, finds a bleeding source in 80% of cases, allows the recurrence-free management of gastrointestinal bleeding in 76% of cases, but carries a high morbidity and mortality. IOE only remains indicated to guide the intraoperative treatment of preoperatively identified small bowel lesions when nonoperative treatments are unavailable and/or when intraoperative localization by external examination is impossible...
January 2017: Gastrointestinal Endoscopy Clinics of North America
https://www.readbyqxmd.com/read/27908514/video-capsule-endoscopy-technology-reading-and-troubleshooting
#11
REVIEW
Jodie A Barkin, Jamie S Barkin
Video capsule endoscopy (VCE) has completed the endoscopic visualization of the entire luminal gastrointestinal tract. VCE can be performed in inpatients and outpatients, requires appropriate bowel preparation before the study, and can be administered via oral swallowing or endoscopic device placement into the small bowel based on outlined patient-dependent factors. Current commercially available VCE systems were reviewed and compared for individual features and attributes. This article focuses on preparation for VCE, currently available VCE technology, how to read a VCE study, and risks and contraindications to VCE...
January 2017: Gastrointestinal Endoscopy Clinics of North America
https://www.readbyqxmd.com/read/27908513/small-bowel-imaging-computed-tomography-enterography-magnetic-resonance-enterography-angiography-and-nuclear-medicine
#12
REVIEW
Jeff L Fidler, Ajit H Goenka, Chad J Fleming, James C Andrews
Radiology examinations play a major role in the diagnosis, management, and surveillance of small bowel diseases and are complementary to endoscopic techniques. Computed tomography enterography and magnetic resonance enterography are the cross-sectional imaging studies of choice for many small bowel diseases. Angiography still plays an important role for catheter-directed therapies. With the emergence of hybrid imaging techniques, radionuclide imaging has shown promise for the evaluation of small bowel bleeding and Crohn disease and may play a larger role in the future...
January 2017: Gastrointestinal Endoscopy Clinics of North America
https://www.readbyqxmd.com/read/27908511/double-balloon-enteroscopy
#13
REVIEW
Andrea May
Since the introduction of double-balloon enteroscopy 15 years ago, flexible enteroscopy has become an established method in the diagnostic and therapeutic work-up of small bowel disorders. With appropriate patient selection, diagnostic and therapeutic yields of 70% to 85% can be expected. The complication rates with diagnostic and therapeutic DBE are estimated at approximately 1% and 3% to 4%, respectively. Appropriate patient selection and device selection, as well as skill, are the key issues for successful enteroscopy...
January 2017: Gastrointestinal Endoscopy Clinics of North America
https://www.readbyqxmd.com/read/27908510/anatomy-and-physiology-of-the-small-bowel
#14
REVIEW
Neil Volk, Brian Lacy
Comprehension of small intestine physiology and function provides a framework for the understanding of several important disease pathways of the gastrointestinal system. This article reviews the development, anatomy and histology of the small bowel in addition to physiology and digestion of key nutrients.
January 2017: Gastrointestinal Endoscopy Clinics of North America
https://www.readbyqxmd.com/read/27907821/total-small-bowel-herniation-through-the-space-between-the-connecting-tube-of-gastric-band-and-abdominal-wall-a-case-report-of-a-surgical-emergency
#15
Tarek Hashem, Soliman M Soliman, Sherif Wagih
INTRODUCTION: Laparoscopic adjustable gastric banding is one of the most frequently done procedures for morbid obesity. In most reported cases, the band itself is the cause of complications. There are only a few reports of morbidities caused by the connecting tube. This presentation describes a case of acute abdomen due to small bowel herniation between the connecting tube and the abdominal wall. This case report aims to remind clinicians of possible complications caused by the connecting tube of a gastric band...
November 17, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27906869/early-and-sustained-vasopressin-infusion-augments-the-hemodynamic-efficacy-of-restrictive-fluid-resuscitation-and-improves-survival-in-a-liver-laceration-model-of-hemorrhagic-shock
#16
Raúl J Gazmuri, Kasen Whitehouse, Kruti Shah, Karla Whittinghill, Alvin Baetiong, Jeejabai Radhakrishnan
BACKGROUND: Current management of hemorrhagic shock favors restrictive fluid resuscitation before control of the bleeding source. We investigated the additional effects of early and sustained vasopressin infusion in a swine model of hemorrhagic shock produced by liver laceration. METHODS: Forty male domestic pigs (32 to 40 kg) had a liver laceration inflicted with an X-shaped blade clamp, 32 received a second laceration at minute 7.5, and 24 received two additional lacerations at minute 15...
November 30, 2016: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/27906758/30-day-readmission-after-operative-management-of-adhesive-small-bowel-obstruction
#17
Sean Nurmsoo, Mohammad Hajizadeh
No abstract text is available yet for this article.
November 30, 2016: Annals of Surgery
https://www.readbyqxmd.com/read/27906109/primary-melanoma-of-the-small-bowel-revealed-by-gastrointestinal-bleeding-a-case-report
#18
B Ait Idir, A Riany, A Jahid, B Chad
BACKGROUND: Primary melanoma of the small bowel is extremely rare. Only a limited number of cases have been described in the literature. Mostly, the small intestine is affected by metastatic tumors of other primary lesions, especially cutaneous. CASE PRESENTATION: We report the case of a 75-year-old North African woman with a small bowel melanoma. The diagnosis was made by histological examination and immunohistochemical profile matching after a segmental small bowel resection...
December 1, 2016: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/27904625/an-intriguing-case-of-gallstone-ileus-after-hepaticojejunostomy-caused-by-a-stone-on-a-suture
#19
Mahir Gachabayov, Petr Mityushin
Gallstone ileus (GI) is a mechanical obstruction of small or large bowel caused by gallstone passed to the intestinal lumen through spontaneous or postoperative biliodigestive fistula. A 42-year-old female patient was admitted with the clinical presentation of small bowel obstruction. She underwent hepaticojejunostomy 4 years prior to admission for primary sclerosing cholangitis. Barium meal follows through revealed Rigler's triad. The patient underwent laparotomy which revealed GI. A "stone on a suture" was removed through enterotomy...
2016: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/27904441/dynamic-contrast-enhanced-ultrasound-of-the-bowel-wall-with-quantitative-assessment-of-crohn-s-disease-activity-in-childhood
#20
Damjana Kljucevsek, Dubravka Vidmar, Darja Urlep, Rok Dezman
BACKGROUND: Contrast-enhanced ultrasound (CEUS) has become an established non-invasive, patient-friendly imaging technique which improves the characterization of lesions. In addition, dynamic contrast-enhanced ultrasound (DCE-US) provides valuable information concerning perfusion of examined organs. This review addresses current applications of CEUS in children, focused on DCE-US of the bowel wall in patients with Crohn disease, which enables realtime assessment of the bowel wall vascularity with semi-quantitative and quantitative assessment of disease activity and response to medical treatment...
December 1, 2016: Radiology and Oncology
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