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Magnetic anastomosis

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https://www.readbyqxmd.com/read/29218385/bilateral-carotid-anterior-cerebral-artery-anastomoses-associated-with-bilateral-ophthalmic-arteries-arising-from-the-anastomotic-arteries-diagnosed-by-magnetic-resonance-angiography-a-case-report
#1
Akira Uchino, Naoko Saito, Norio Tanahashi
Rarely, the anterior cerebral artery (ACA) arises from the ophthalmic segment of the internal carotid artery, a condition described as carotid-ACA anastomosis or infraoptic course of the ACA that generally demonstrates right-sided predominance. We diagnosed a case of bilateral anastomoses of the carotid and ACA vessels in which bilateral ophthalmic arteries arose from the origins of the anastomotic vessels using magnetic resonance (MR) angiography. Identification of rare arterial variations on MR angiography requires careful scrutiny of source images, and creation of partial volume-rendering images can aid visualization of detailed anatomic structures...
December 7, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29190631/a-retrospective-review-of-the-diagnostic-and-management-challenges-of-mirizzi-syndrome-at-the-singapore-general-hospital
#2
Wei Ming Seah, Ye Xin Koh, Peng Chung Cheow, Pierce K H Chow, Chung Yip Chan, Ser Yee Lee, London L P J Ooi, Alexander Y F Chung, Brian K P Goh
BACKGROUND: Mirizzi syndrome (MS) occurs when gallstone impaction in Hartmann's pouch results in extrinsic obstruction of the common bile duct, and fistulation may occur. METHODS: We retrospectively reviewed electronic records of patients surgically treated for MS from November 2001 to June 2012. Patient presentations, diagnostic methods, treatments and complications were recorded. RESULTS: Sixty-four patients were grouped according to a classification proposed by Beltran et al...
November 30, 2017: Digestive Surgery
https://www.readbyqxmd.com/read/29146107/cardiovascular-anatomy-in-children-with-bidirectional-glenn-anastomosis-regarding-the-transcatheter-fontan-completion
#3
Aleksander Sizarov, Francesca Raimondi, Damien Bonnet, Younes Boudjemline
BACKGROUND: Transcatheter stent-secured completion of total cavopulmonary connection (TCPC) after surgical preparations during the Glenn anastomosis procedure has been reported, but complications from this approach have precluded its clinical acceptance. AIMS: To analyse cardiovascular morphology and dimensions in children with bidirectional Glenn anastomosis, regarding the optimal device design for transcatheter Fontan completion without special surgical "preconditionings"...
November 13, 2017: Archives of Cardiovascular Diseases
https://www.readbyqxmd.com/read/29120569/abdominal-ultrasound-%C3%A2-the-leading-method-in-duodenal-gist-diagnostics
#4
Sven Bohnec, Ivan Budimir, Davor Hrabar, Nenad Babić, Ivan Budimir, Marko Nikolić, Ivana Pavić
Gastrointestinal stromal tumors (GIST) are the most common mesenchymal tumors of the digestive tract and are generally asymptomatic. A 39-year-old female patient was hospitalized in 2012 at Clinical Department of Internal Medicine, Sestre milosrdnice University Hospital Center, for a focal hypodense irregular circular lesion located in segment III of the left hepatic lobe, accidentally found by ultrasonography and verified by computed tomography. The findings were also verified with nuclear magnetic resonance and esophagogastroduodenoscopy...
March 2017: Acta Clinica Croatica
https://www.readbyqxmd.com/read/29114317/agenesis-of-the-internal-carotid-artery-with-transcavernous-anastomosis-associated-with-anterior-communicating-artery-aneurysms
#5
Kosuke Kumagai, Satoru Takeuchi, Naoki Otani, Masaki Komiyama, Kentaro Mori
Agenesis of the internal carotid artery (ICA) is a rare congenital anomaly. Recently, several cases of ICA agenesis have been associated with cerebral aneurysms. We present the seventh case of ICA agenesis with transcavernous anastomosis associated with cerebral aneurysms. A 47-year-old man presented with transient numbness of his left hand. Magnetic resonance angiography indicated the presence of anterior communicating artery (ACoA) aneurysms. Digital subtraction angiography revealed two ACoA aneurysms, absence of the left ICA, and an anomalous collateral vessel connecting the cavernous portions of both internal carotid arteries, which was considered to be a transcavernous anastomosis...
October 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/29074047/outcomes-of-surgical-intervention-for-anomalous-aortic-origin-of-a-coronary-artery-a-large-contemporary-prospective-cohort-study
#6
Carlos M Mery, Luis E De León, Silvana Molossi, S Kristen Sexson-Tejtel, Hitesh Agrawal, Rajesh Krishnamurthy, Prakash Masand, Athar M Qureshi, E Dean McKenzie, Charles D Fraser
OBJECTIVE: The purpose of this study was to prospectively analyze the outcomes of patients with anomalous aortic origin of a coronary artery undergoing surgical intervention according to a standardized management algorithm. METHODS: All patients aged 2 to 18 years undergoing surgical intervention for anomalous aortic origin of a coronary artery between December 2012 and April 2017 were prospectively included. Patients underwent stress nuclear perfusion imaging, stress cardiac magnetic resonance imaging, and retrospectively electrocardiogram-gated computed tomography angiography preoperatively...
September 14, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28976806/magnetic-compression-anastomosis-magnamosis-for-functional-undiversion-of-ileostomy-in-pediatric-patients
#7
Luzia Toselli, Marcelo Martinez-Ferro, Guillermo Cervio, Dillon Kwiat, Jill Imamura-Ching, Claire E Graves, Brandon Gaston, Michael Harrison
INTRODUCTION: Magnamosis forms a compression anastomosis using self-aligning magnetic Harrison rings. The device has been approved by the Food and Drug Administration for first-in-human testing and has been applied in adults for intestinal anastomosis during urologic reconstructions. We now report the first cases of magnamosis to functionally undivert the fecal stream from a previously created loop ileostomy in pediatric patients. MATERIALS AND METHODS: Case 1: A 4-year-old male underwent a diverting loop ileostomy for malignant bowel obstruction...
October 4, 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/28969198/spontaneous-enterocutaneous-fistula-resulting-from-richter-s-hernia
#8
Ranendra Hajong, Donkupar Khongwar, Ojing Komut, Narang Naku, Kappa Baru
Richter's hernia is due to the entrapment of a part of circumference of the bowel wall. As the bowel continuity is maintained, the patients usually do not have intestinal obstruction. Some patients with Richter's hernia may present with enterocutaneous fistula either spontaneous or due to surgical intervention mistaking the obstructed hernia to be inguinal abscess. This is more so in developing countries due to lack of awareness among the masses or due to the delay in seeking medical attention. Presenting here is a case of a 53-year-old male patient with enterocutaneous fistula which occurred spontaneously and sought medical attention only after about three years of repeated discharge of yellowish fluid from the left inguinal region...
August 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28966828/sequential-changes-of-arterial-spin-labeling-perfusion-mr-images-with-dual-postlabeling-delay-following-reconstructive-surgery-for-giant-internal-carotid-artery-aneurysm
#9
Takafumi Shimogawa, Takato Morioka, Tomoaki Akiyama, Sei Haga, Shuji Arakawa, Tetsuro Sayama
BACKGROUND: Arterial spin-labeling magnetic resonance perfusion imaging (ASL-MRI) allows noninvasive measurement of cerebral blood flow (CBF) but depends on arterial transit time (ATT). To overcome this problem, we developed a simple ASL technique with dual postlabeling delay (PLD) settings. In addition to the routinely used PLD of 1.5 seconds, we selected another PLD of 2.5 seconds to assess slowly streaming blood flow and detect arterial transit artifacts (ATAs) resulting from stagnant intravascular magnetically labeled spins...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28928606/quantification-of-ventricular-unloading-by-3d-echocardiography-in-single-ventricle-of-left-ventricular-morphology-following-superior-cavo-pulmonary-anastomosis-and-fontan-completion-a-feasibility-study
#10
Deepa Sasikumar, Bijulal Sasidharan, Baiju S Dharan, Arun Gopalakrishnan, Kavasseri M Krishnamoorthy, Sivasubramanian Sivasankaran
BACKGROUND: Three-dimensional echocardiography. (3DE) is comparable to cardiac magnetic resonance imaging for estimating ventricular volume in congenital heart diseases. However, there are limited data on estimation of ventricular volumes by 3DE in univentricular heart and change in ventricular volumes after surgical creation of cavopulmonary connection. We sought to quantify the unloading of the single ventricle of left ventricular. (LV) morphology by 3DE after superior cavopulmonary anastomosis...
September 2017: Annals of Pediatric Cardiology
https://www.readbyqxmd.com/read/28919565/treatment-of-large-or-giant-cavernous-aneurysm-associated-with-persistent-trigeminal-artery-case-report-and-review-of-literature
#11
Tatsuya Ishikawa, Koji Yamaguchi, Hidenori Anami, Masatake Sumi, Tomomi Ishikawa, Takakazu Kawamata
BACKGROUND: Primitive trigeminal artery (PTA) is the most common anomaly of primitive carotid-basilar anastomosis and is associated with cerebrovascular anomalies, such as aneurysm. Large or giant cavernous aneurysm associated with PTA is rare, and the treatment strategies differ in comparison with large or giant aneurysm without PTA. In this article, we report an unusual case of a giant cavernous aneurysm associated with PTA and review treatment strategies for large or giant cavernous aneurysm associated with PTA...
September 14, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28916905/small-cholangiolocellular-carcinoma-that-was-difficult-to-distinguish-from-cholangiocellular-carcinoma-a-case-report
#12
Norihiro Ishii, Kenichiro Araki, Takahiro Yamanaka, Tadashi Handa, Mariko Tsukagoshi, Takamichi Igarashi, Akira Watanabe, Norio Kubo, Shinichi Aishima, Hiroyuki Kuwano, Ken Shirabe
BACKGROUND: Cholangiolocellular carcinoma (CoCC) is thought to be derived from hepatic progenitor cells. Because of its origin, CoCC has diverse clinicopathological and imaging findings. Here, we report a case of small CoCC that was difficult to diagnose preoperatively. CASE PRESENTATION: A 62-year-old woman was confirmed with a small liver nodule in the left lobe 2 years after a sustained virological response of hepatitis C virus. The size of the nodule was 11...
September 15, 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28915429/neuroendocrine-tumor-of-the-extrahepatic-bile-duct-a-case-report
#13
Tsuyoshi Abe, Azuma Nirei, Nobuyasu Suzuki, Yukitoshi Todate, Ayaka Azami, Mitsuru Waragai, Atai Sato, Yoshinao Takano, Noriyuki Nishino, Hideo Sakuma, Yasushi Teranishi
INTRODUCTION: Neuroendocrine tumors (NETs) of the extrahepatic bile ducts are extremely rare neoplasms arising from endocrine cells and have variable malignant potential. They most commonly occur in young females and usually present with painless jaundice. PRESENTATION OF CASE: Here we present the case of an asymptomatic 57-year-old woman with NET of the common bile duct that was incidentally discovered on abdominal ultrasound during a medical examination. She was admitted to our hospital with a diagnosis of hepatic hilar tumor...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28915102/acceleration-selective-arterial-spin-labeling-mr-angiography-used-to-visualize-distal-cerebral-arteries-and-collateral-vessels-in-moyamoya-disease
#14
Osamu Togao, Akio Hiwatashi, Makoto Obara, Koji Yamashita, Kazufumi Kikuchi, Ryotaro Kamei, Ataru Nishimura, Koichi Arimura, Koji Yoshimoto, Koji Iihara, Marc Van Cauteren, Hiroshi Honda
Purpose To evaluate and compare the performance of acceleration-selective arterial spin labeling (AccASL) magnetic resonance (MR) angiography in the visualization of cerebral arteries and collateral vessels in patients with Moyamoya disease with that of time-of-flight (TOF) MR angiography, with digital subtraction angiography (DSA) as the reference standard. Materials and Methods Thirty-six cerebral hemispheres from 22 patients with Moyamoya disease underwent TOF and AccASL MR angiography and DSA. Qualitative evaluations included imaging of the terminal internal carotid artery (ICA), distal middle cerebral arteries (MCAs), Moyamoya vessels, and leptomeningeal anastomosis (LMA) collaterals with reference to DSA...
September 15, 2017: Radiology
https://www.readbyqxmd.com/read/28912914/intraductal-ultrasonography-as-a-local-assessment-before-magnetic-compression-anastomosis-for-obstructed-choledochojejunostomy
#15
Hideaki Kawabata, Misuzu Hitomi, Naonori Inoue, Yukino Kawakatsu, Yuji Okazaki, Masatoshi Miyata
Magnetic compression anastomosis (MCA) has been developed as a non-surgical alternative treatment for biliary obstruction without serious complications. A 70-year-old woman who had undergone pancreaticoduodenectomy with modified Child reconstruction for pancreatic head cancer suffered from obstructed choledochojejunostomy with no recurrent findings 4 months after the operation. Cholangiography using the percutaneous transhepatic cholangiographic drainage (PTCD) and fluoroscopy revealed complete obstruction of the upper common bile duct, and the length of the obstruction was 7 mm...
August 2017: Gastroenterology Research
https://www.readbyqxmd.com/read/28877007/creation-of-an-esophageal-atresia-animal-model-using-a-bifurcated-esophagus-to-maintain-digestive-tract-continuity
#16
Ian C Glenn, Nicholas E Bruns, Steve J Schomisch, Todd A Ponsky
INTRODUCTION: We previously developed a porcine model of long gap pure esophageal atresia (EA) to aid in the creation of novel devices and techniques for treatment of EA. Shortcomings of the model included difficulty decompressing the proximal esophageal pouch (leading to recurrent aspiration) and a requirement for gastrostomy tube (G-tube) feeds. Therefore, we sought to create a porcine model with a bifurcated esophagus wherein one portion of the esophageal lumen retained patency and the other part mimicked EA...
October 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/28843832/magnetic-compression-anastomosis-magnamosis-first-in-human-trial
#17
Claire E Graves, Catherine Co, Ryan S Hsi, Dillon Kwiat, Jill Imamura-Ching, Michael R Harrison, Marshall L Stoller
BACKGROUND: Magnetic compression anastomosis (magnamosis) uses a pair of self-centering magnetic Harrison Rings to create an intestinal anastomosis without sutures or staples. We report the first-in-human case series using this unique device. STUDY DESIGN: We conducted a prospective, single-center, first-in-human pilot trial to evaluate the feasibility and safety of creating an intestinal anastomosis using the Magnamosis device. Adult patients requiring any intestinal anastomosis to restore bowel continuity were eligible for inclusion...
November 2017: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/28838456/successful-treatment-of-stricture-of-duct-to-duct-biliary-anastomosis-after-living-donor-liver-transplantation-of-the-left-lobe-a%C3%A2-case%C3%A2-report
#18
Y Nakaseko, H Shiba, E Yamanouchi, Y Takano, T Sakamoto, H Imazu, H Ashida, K Yanaga
Biliary complications, such as stricture or obstruction, after living-donor liver transplantation (LDLT) remain major problems to be solved. Magnetic compression anastomosis (MCA) is a minimally invasive method of biliary anastomosis without surgery in patients with biliary stricture or obstruction. A 66-year-old woman had undergone LDLT for end-stage liver disease for primary biliary cholangitis 20 months previously at another hospital. Computerized tomography showed dilation of the intrahepatic bile duct (B2)...
September 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28745145/magnetic-compression-stricturoplasty-for-treatment-of-refractory-esophageal-strictures-in-children-technique-and-lessons-learned
#19
Russell Woo, Christopher Marc Wong, Zachary Trimble, Devin Puapong, Shannon Koehler, Scott Miller, Sidney Johnson
INTRODUCTION: Esophageal stricture is the most common complication following repair of esophageal atresia (EA). In general, these strictures are successfully managed using endoscopic techniques including bougie and balloon dilation, stenting, and chemotherapeutic agent application. If these techniques are unsuccessful, patients require segmental esophageal resection and reanastomosis or esophageal replacement. Magnetic compression anastomosis has been described in children. Herein we report our experience with magnetic compression stricturoplasty to treat refractory strictures after EA repair...
October 2017: Surgical Innovation
https://www.readbyqxmd.com/read/28740768/fmri-after-phalloplasty-with-nerve-anastomosis-in-a-trans-man-patient
#20
Roberto Doria-Medina, Åsa Carlsson, Emma H Jönsson, Lars Jönsson, Andri Thorarinsson, Mattias Lidén, Gennaro Selvaggi
We report on a case of a trans-man patient, who underwent penile reconstruction with the use of a radial forearm flap, urethroplasty, vaginectomy and scrotoplasty, insertion of testicle implants, and penile erection implants, similar to previously described methods. One of the requirements for an ideal phalloplasty is the preservation of erogenous sensitivity, which is often demanded by the patients for fulfilling their sexual well-being. For the first time known to us, we use a functional magnetic resonance imaging following radial forearm flap phalloplasty with nerve anastomosis to assess the cortical activation after clitoral stimulation...
June 2017: Plastic and Reconstructive Surgery. Global Open
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