Read by QxMD icon Read

gastric anatomy

Ricardo Zorron, Alcides Branco, Jose Sampaio, Claudia Bothe, Tido Junghans, Gyurdzhan Rasim, Johann Pratschke, Safak Guel-Klein
BACKGROUND: The anatomical and physiological changes after Roux-en-Y gastric bypass for morbid obesity can lead to severe hyperinsulinemic hypoglycemia with neuroglycopenia in a small percentage of patients. The exact physiologic mechanism is not completely understood. Surgical reversal to the original anatomy and distal or total pancreatectomy are current therapeutic options to reverse the hypoglycemic effect, with substantial associated morbidity. Our group reports a pilot clinical series of a novel surgical technique using one-anastomosis jejunal interposition with gastric remnant resection (Branco-Zorron Switch)...
October 13, 2016: Obesity Surgery
Yousuke Nakai, Hiroyuki Isayama, Natsuyo Yamamoto, Saburo Matsubara, Yukiko Ito, Naoki Sasahira, Ryunosuke Hakuta, Gyotane Umefune, Naminatsu Takahara, Tsuyoshi Hamada, Suguru Mizuno, Hirofumi Kogure, Minoru Tada, Kazuhiko Koike
Background and study aims: Endoscopic ultrasound (EUS)-guided biliary drainage (EUS-BD) is potentially complicated by bile leak and stent migration. The aim of this study was to evaluate the safety and effectiveness of a long (≥ 10 cm), partially covered metal stent (LP-CMS) for EUS-guided hepaticogastrostomy (EUS-HGS) for malignant biliary obstruction. Both the stent length and the uncovered portion at the proximal end of the LP-CMS are designed to prevent stent migration. Patients and methods: A total of 33 patients undergoing EUS-HGS using an LP-CMS in four centers were retrospectively studied...
October 7, 2016: Endoscopy
Brian Badgwell
Surgical resection is the primary method of obtaining a potential cure for patients with gastric adenocarcinoma. However, chemotherapy or chemoradiotherapy offer significant improvement in survival over surgery alone. Much of the difficulty in deciding the optimal treatment strategy is choosing between perioperative chemotherapy or adjuvant chemoradiotherapy. Adding to the complexity is the potential for incorporating treatment strategies based on clinical trials performed in Asia. There is likely a difference in tumor biology between Eastern and Western patients with gastric adenocarcinoma, in addition to the clear differences in screening, pathologic assessment, and surgical technique...
October 2016: Journal of the National Comprehensive Cancer Network: JNCCN
Ricardo Zorron, Manoel Passos Galvão-Neto, Josemberg Campos, Alcides José Branco, José Sampaio, Tido Junghans, Claudia Bothe, Christian Benzing, Felix Krenzien
Background: Roux-en-Y gastric bypass (RYGB) is a standard therapy in bariatric surgery. Sleeve gastrectomy and gastric banding, although with good results in the literature, are showing higher rates of treatment failure to reduce obesity-associated morbidity and body weight. Other problems after bariatric may occur, as band erosion, gastroesophageal reflux disease and might be refractory to medication. Therefore, a laparoscopic conversion to a RYGB can be an effective alternative, as long as specific indications for revision are fulfilled...
2016: Arquivos Brasileiros de Cirurgia Digestiva: ABCD, Brazilian Archives of Digestive Surgery
Eduardo Arevalo Vidal, Francisco Abarca Rendon, Trino Andrade Zambrano, Yudoco Andrade García, Mario Ferrin Viteri, Josemberg Marins Campos, Manoela Galvão Ramos, Almino Cardoso Ramos
Background: Intestinal malrotation is a rare congenital anomaly. In adults is very difficult to recognize due to the lack of symptoms. Diagnosis is usually incidental during surgical procedures or at autopsy. Aim: To review the occurrence and recognition of uneventful intestinal malrotation discovered during regular cases of bariatric surgeries. Methods: Were retrospectively reviewed the medical registry of 20,000 cases undergoing bariatric surgery, from January 2002 to January 2016, looking for the occurrence of intestinal malrotation and consequences in the intraoperative technique and immediate evolution of the patients...
2016: Arquivos Brasileiros de Cirurgia Digestiva: ABCD, Brazilian Archives of Digestive Surgery
Matan Or, Kumiko Ishigaki, Hilde de Rooster, Kenji Kutara, Kazushi Asano
OBJECTIVE: To describe the morphology of porto-azygos shunts in a large series of dogs using computed tomography (CT) angiography. STUDY DESIGN: Retrospective study. ANIMALS: Dogs (n=36) with porto-azygos shunts. METHODS: CT angiography was performed in dogs subsequently proven to have a porto-azygos shunt. The origin and insertion of the shunts were assessed on native images. The diameter of the porto-azygos shunt and the portal vein, cranial and caudal to the shunt origin, were measured...
September 23, 2016: Veterinary Surgery: VS
Avik Sarkar, Ragui Sadek, Matthew Lissauer, Swati Pawa
BACKGROUND: After an acute attack of pancreatitis, walled-off pancreatic fluid collections (PFC) occur in approximately 10 % of cases. Drainage of the cavity is recommended when specific indications are met. Endoscopic drainage has been adopted as the main intervention for symptomatic walled-off PFC. Altered gastric anatomy in these patients poses an interesting challenge. We present the first case of a patient with sleeve gastrectomy who underwent successful endoscopic transduodenal necrosectomy (TDN)...
2016: BMC Obesity
Ricardo Mejía, Pablo Achurra, Mauricio Gabrielli, Eduardo Briceño, Rolando Rebolledo, Alberto Torres, Allan Sharp, Fernando Pimentel, Fernando Crovari
BACKGROUND: Common bile duct (CBD) stones in a Roux-en-Y gastric bypass (RYGB) represent a major challenge for ERCP due to long-limb anatomy. Trans-gastric approach has been proposed but entails high ERCP-related risks. Laparoscopy assisted trans-gastric rendez-vous (LATG-RV) is a one-step procedure that may lower the risks of these patients. METHODS: We describe our initial experience in four patients with past history of RYGB and CBD stones. RESULTS: All patients underwent LATG-RV and had successful CBD stone clearance...
September 10, 2016: Obesity Surgery
Jens Van Den Abeele, Jari Rubbens, Joachim Brouwers, Patrick Augustijns
Before being absorbed in the small intestine and/or colon, orally administered drugs inevitably need to pass through the stomach. Hence, it seems reasonable that the residence of a dosage form in the gastric environment, however brief it may be, may influence drug disposition further down the gastrointestinal tract and may potentially impact systemic exposure to a drug of interest. However, research efforts in the past mainly focused on drug disposition at the level of the intestine, i.e. the main site of absorption, hereby disregarding or oversimplifying the stomach's contribution to gastrointestinal drug disposition...
September 3, 2016: European Journal of Pharmaceutical Sciences
Lin Ding, Mohamad El Zaatari, Juanita L Merchant
This review focuses on the various experimental models to study gastric cancer pathogenesis, with the role of genetically engineered mouse models (GEMMs) used as the major examples. We review differences in human stomach anatomy compared to the stomachs of the experimental models, including the mouse and invertebrate models such as Drosophila and C. elegans. The contribution of major signaling pathways, e.g., Notch, Hedgehog, AKT/PI3K is discussed in the context of their potential contribution to foregut tumorigenesis...
2016: Advances in Experimental Medicine and Biology
Chin Hong Lim, Stuart K Amateau, Sayeed Ikramuddin, Daniel B Leslie
BACKGROUND: Although vertical banded gastroplasty (VBG) is no longer performed in the USA, due to its popularity in 1980s, many patients still possess this anatomy with its inherent complications. The stomal stenosis secondary to tight ring or mesh is traditionally treated with surgical removal of the silastic ring or a complex revision, which was hampered by complications, technical complexity, and invasiveness. We described our experience of endoscopic management of this complex problem and the early outcomes...
August 29, 2016: Obesity Surgery
Whitney D Johnson, M Blair Marshall
Patients with previous foregut surgery who develop additional foregut pathology can be a challenge. Those who have formerly undergone gastric bypass and later develop achalasia are at increased risk related to previous surgery. In this case report, we describe an alternative approach for the Dor fundoplication after laparoscopic Heller myotomy in the setting of the altered anatomy. The technique and advantages of this approach are detailed in the discussion of this patient.
May 2016: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
Emanuele Asti, Gianluca Bonitta, Andrea Lovece, Veronica Lazzari, Luigi Bonavina
Only a minority of patients with gastro-esophageal reflux disease (GERD) are offered a surgical option. This is mostly due to the fear of potential side effects, the variable success rate, and the extreme alteration of gastric anatomy with the current gold standard, the laparoscopic Nissen fundoplication. It has been reported that laparoscopic Toupet fundoplication (LTF) and laparoscopic sphincter augmentation using a magnetic device (LINX) can treat reflux more physiologically and with a lower incidence of side-effects and reoperation rate...
July 2016: Medicine (Baltimore)
Larry Miller, Anil Vegesna, Michael Ruggieri, Alan Braverman
The high-pressure zone of the gastroesophageal junction acts as a multifunctional valve that comprises different groups of smooth muscles located in the distal esophagus and the proximal stomach, in addition to the extrinsic crural diaphragm, composed of skeletal muscle. In this review article, we evaluate the current literature with respect to human subjects, discussing the anatomic locations and physiologic and pharmacologic processes controlling these muscles. These muscles work individually and as a group to prevent reflux of gastric contents while allowing anterograde passage of food and liquid and retrograde passage of gas...
July 28, 2016: Annals of the New York Academy of Sciences
Christopher Crawford, Kyle Gibbens, Daniel Lomelin, Crystal Krause, Anton Simorov, Dmitry Oleynikov
BACKGROUND: Obesity is an epidemic in the USA that continues to grow, becoming a leading cause of premature avoidable death. Bariatric surgery has become an effective solution for obesity and its comorbidities, and one of the most commonly utilized procedures, the sleeve gastrectomy, can lead to an increase in gastroesophageal reflux following the operation. While these data are controversial, sometimes operative intervention can be necessary to provide durable relief for this problem...
July 20, 2016: Surgical Endoscopy
Rodolfo J Oviedo, Chase W Sofiak, Bruce M Dixon
INTRODUCTION: Achalasia is a condition that occurs when the lower esophageal sphincter (LES) fails to properly relax, combined with slowing/failure of esophageal peristalsis. This is seen clinically by not allowing solids and liquids to pass easily into the stomach. Achalasia is not historically associated with morbid obesity, yet dual treatment of morbid obesity and achalasia is becoming more prominent due to the worldwide obesity epidemic. PRESENTATION OF CASE: Achalasia is typically a disease that affects non-obese adults over the age of 55, which makes the discussion of this case report unique in that our patient is a 23 year-old woman who successfully underwent per-oral endoscopic myotomy (POEM) in preparation for a future laparoscopic sleeve gastrectomy...
2016: International Journal of Surgery Case Reports
Yongyou Wu, Guangqiang Chen, Pengfei Wu, Jianbin Zhu, Wei Peng, Chungen Xing
BACKGROUND: Precise determination and classification of left gastric vein (LGV) anatomy are helpful in planning for gastric surgery, in particular, for resection of gastric cancer. However, the anatomy of LGV is highly variable. A systematic classification of its variations is still to be proposed. We aimed to investigate the anatomical variations in LGV using CT imaging and develop a new nomenclature system. METHOD: We reviewed CT images and tracked the course of LGV in 825 adults...
July 8, 2016: Surgical and Radiologic Anatomy: SRA
Aaron Martin, Charles Andrew Kistler, Piotr Wrobel, Juliana F Yang, Ali A Siddiqui
The management of pancreaticobiliary disease in patients with surgically altered anatomy is a growing problem for gastroenterologists today. Over the years, endoscopic ultrasound (EUS) has emerged as an important diagnostic and therapeutic modality in the treatment of pancreaticobiliary disease. Patient anatomy has become increasingly complex due to advances in surgical resection of pancreaticobiliary disease and EUS has emerged as the therapy of choice when endoscopic retrograde cholangiopancreatography failed cannulation or when the papilla is inaccessible such as in gastric obstruction or duodenal obstruction...
May 2016: Endoscopic Ultrasound
George Triadafilopoulos, Dan Azagury
Patients experiencing heartburn and acid regurgitation despite proton pump inhibition therapy who are averse to antireflux surgery fall into what is called the gastroesophageal reflux disease (GERD) treatment gap. This gap may be potentially addressed by several endoscopic and laparoscopic techniques, including gastric bypass surgery for those patients who are obese. These novel techniques do not significantly alter the anatomy of the esophagogastric junction, minimizing short- and long-term adverse effects...
July 6, 2016: Annals of the New York Academy of Sciences
T Suzuki, T Hara, Y Kitagawa, T Yamaguchi
AIM: Endoscopic submucosal dissection (ESD) is currently widely conducted for the treatment of early gastrointestinal -cancers. Due to the characteristic anatomy of the large intestine, needle- tip type devices such as Dual knife are mainly used in colorectal ESD. On the other hand, the non- needle-tip type IT knife is a unique device with an insulated tip, and has been reported to be safe, efficacious and speedy when used in gastric ESD. A new model of IT knife, IT knife nano, anticipated to be useful for esophageal and colorectal ESD has become available, but its usefulness has not been reported...
April 2016: Acta Gastro-enterologica Belgica
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"