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https://www.readbyqxmd.com/read/29682711/-imaging-diagnosis-and-imaging-risk-factors-of-anastomotic-leakage-after-rectal-cancer-surgery
#1
Yi Wang
Dispite continual improvements in diagnostic and management techniques, anastomotic leak (AL) remains one of the most devastating consequences of rectal cancer surgery. Recently, many investigations have attempted to identify the risk factors and established risk model to predict and prevent anastomotic leakage after low anterior resection. The distance between the lower edge of rectal cancer and the anal verge measured by magnetic resonance imaging was demonstrated as one of the independent risk factors associated with AL...
2018: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/29664337/pancreatic-stiffness-quantified-with-mr-elastography-relationship-to-postoperative-pancreatic-fistula-after-pancreaticoenteric-anastomosis
#2
Yu Shi, Ying Liu, Feng Gao, Yanqing Liu, Shengzhen Tao, Yue Li, Kevin J Glaser, Richard L Ehman, Qiyong Guo
Purpose To describe the relationship between conventional magnetic resonance (MR) imaging parameters and MR elastography of the pancreas in association with pancreatic histologic features and occurrence of postoperative pancreatic fistula (POPF). Materials and Methods Patients who underwent preoperative MR imaging (MR elastography and diffusion-, T1-, and T2-weighted imaging) followed by pancreatectomy with pancreaticoenteric anastomosis were included. The relationships between preoperative MR imaging parameters, demographic data, and intraoperative factors with POPF risk were analyzed with logistic regression analyses...
April 17, 2018: Radiology
https://www.readbyqxmd.com/read/29661648/one-year-rat-study-of-ibta-induced-microbiotube-microvascular-grafts-with-an-ultra-small-diameter-of-0-6-mm
#3
Daizo Ishii, Jun-Ichiro Enmi, Ryosuke Iwai, Kaoru Kurisu, Eisuke Tatsumi, Yasuhide Nakayama
OBJECTIVE: The world's smallest calibre "microbiotube" vascular graft was recently developed, with an inner diameter of 0.6 mm. It was formed using in-body tissue architecture (iBTA) and has a high degree of patency and capacity for regeneration in the acute phase, 1 month after implantation. This consecutive study investigated the compatibility and stability of microbiotubes in the chronic phase of implantation for 12 months for potential application in microsurgery. METHODS: This was an in vivo experimental study...
April 13, 2018: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/29660052/side-to-side-and-end-to-side-double-anastomosis-using-the-parietal-branch-of-the-superficial-temporal-artery-a-novel-technique-for-extracranial-to-intracranial-bypass-surgery-3-dimensional-operative-video
#4
Gregory D Arnone, Ziad A Hage, Fady T Charbel
In this 3-dimensional video, we perform a side-to-side and end-to-side double anastomosis using the parietal-branch of the superficial temporal artery (STA) to provide flow augmentation in a symptomatic 59-yr-old male with bilateral internal carotid artery occlusion at the origin, and left M1 segment occlusion. The patient suffered multiple left hemispheric strokes despite maximal medical therapy and was found to have poor hemodynamic reserve in the left hemisphere during evaluation with regional and global blood oxygenation level-dependent functional magnetic resonance imaging with CO2-challenge as well as quantitative magnetic resonance angiography and noninvasive optimal vessel analysis pre- and post-acetazolamide challenge...
April 12, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29618068/occipital-artery-to-posterior-cerebral-artery-bypass-using-descending-branch-of-the-lateral-circumflex-femoral-artery-graft-for-treatment-of-fusiform-unruptured-posterior-cerebral-artery-aneurysm-3-dimensional-operative-video
#5
Kristine Ravina, Ian A Buchanan, Robert C Rennert, Ben A Strickland, Joseph N Carey, Jonathan J Russin
Posterior cerebral artery (PCA) aneurysms can be technically challenging lesions due to the intricacy of perforating branches and the relationship to cranial nerves and the brainstem. Fusiform aneurysms of the perimesencephalic segment of the PCA are a rare finding which does not favor direct clip occlusion or reconstruction. In such cases, proximal parent vessel occlusion is an option for aneurysm treatment. Extracranial-intracranial (EC-IC) bypass can be used to revascularize beyond the lesion when considering proximal occlusion...
April 3, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29610036/paradoxical-association-of-symptomatic-local-vasogenic-edema-with-global-cerebral-hypoperfusion-after-direct-revascularization-surgery-for-adult-moyamoya-disease
#6
Ryosuke Tashiro, Miki Fujimura, Shunji Mugikura, Kuniyasu Niizuma, Hidenori Endo, Toshiki Endo, Teiji Tominaga
BACKGROUND: Superficial temporal artery-middle cerebral artery (STA-MCA) anastomosis is the standard treatment for Moyamoya disease (MMD). Cerebral hyperperfusion syndrome is a potential complication of this procedure and can cause local vasogenic edema and/or delayed intracerebral hemorrhage. Cerebral hypoperfusion is a contradictory postoperative pathophysiological condition implicated in MMD, but its association with symptomatic local vasogenic edema has not been reported. CASE REPORT: A 31-year-old woman with MMD underwent left STA-MCA anastomosis 3 months after a minor completed stroke in bilateral hemispheres...
March 30, 2018: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/29608158/a-rat-model-of-orthotopic-liver-transplantation-using-a-novel-magnetic-anastomosis-technique-for-suprahepatic-vena-cava-reconstruction
#7
Lifei Yang, Jianwen Lu, Yue Wang, Mei Zhang, Yuan Shi, Shasha Wei, Peng Liu, Zheng Wu, Yi Lv, Rongqian Wu
The rat model of orthotopic liver transplantation (OLT) is essential for transplant research. It is a very sophisticated animal model and requires a steep learning curve. The introduction of the cuff technique for anastomosis of the portal vein (PV) and infrahepatic vena cava (IHVC) has significantly simplified the transplant procedure in rats. However, due to the short anterior wall of the recipients' suprahepatic vena cava (SHVC), the cuff technique is very difficult to use for the reconstruction of the SHVC...
March 19, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29571786/dynamic-contrast-enhanced-magnetic-resonance-lymphangiography-categorization-of-imaging-findings-and-correlation-with-patient-management
#8
Sheena Pimpalwar, Ponraj Chinnadurai, Alex Chau, Mercedes Pereyra, Daniel Ashton, Prakash Masand, Rajesh Krishnamurthy, Siddharth Jadhav
OBJECTIVE: To review the technical aspects and categorize the imaging findings of dynamic contrast enhanced magnetic resonance lymphangiography (DCMRL) and correlate the findings with patient management options. MATERIALS AND METHODS: A retrospective review of patients who underwent DCMRL between June 2012 and August 2017 at a tertiary care paediatric hospital was performed. Twenty-five DCMRL studies were performed in 23 patients (9 males, 13 females, 1 ambiguous gender) with a median age of 4 years (range: 1 month-29 years)...
April 2018: European Journal of Radiology
https://www.readbyqxmd.com/read/29502388/horseshoe-kidney-and-uretero-pelvic-junction-obstruction-in-a-pediatric-patient-laparoscopic-vascular-hitch-a-valid-alternative-to-dismembered-pyeloplasty
#9
Cosimo Bleve, Valeria Bucci, Maria Luisa Conighi, Francesco Battaglino, Lorenzo Costa, Lorella Fasoli, Elisa Zolpi, Salvatore Fabio Chiarenza
Horseshoe kidney (HSK) is a congenital defect of the urinary tract that occurs in 0.25% of the general population. Laparoscopic Vascular Hitch (LVH) according to Hellstrom-Chapman represent an alternative approach in treatment of extrinsic hydronephrosis by crossing vessels (CV) in pediatric age. In our Department from 2006 to 2016, 36 children with extrinsic-Uretero-Pelvic-Junction (UPJ)-Obstruction (UPJO) underwent laparoscopic vessels transposition. Over the last 4years, we have treated three patients with extrinsic hydronephrosis in HSK; two males and one female respectively of 6, 7 and 8years...
December 13, 2017: La Pediatria Medica e Chirurgica: Medical and Surgical Pediatrics
https://www.readbyqxmd.com/read/29501297/tracheal-paraganglioma-presenting-as-stridor-in-a-pediatric-patient-case-report-and-literature-review
#10
Amy L Dimachkieh, Allison Dobbie, Damon R Olson, Mark A Lovell, Jeremy D Prager
OBJECTIVE: To review tracheal paragangliomas and describe the clinical presentation, radiologic findings, operative management, and histologic findings of a pediatric patient who presented with stridor refractory to traditional asthma therapy. METHODS: Chart review of an 8-year-old male who presented to a tertiary care pediatric hospital and literature review of tracheal paragangliomas. RESULTS: We present the case of an 8-year-old male who presented with new-onset of wheezing and dyspnea on exertion...
April 2018: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/29407321/protective-effect-of-a-novel-technique-for-liver-transplantation-in-the-rat
#11
B Qu, F Yu, G-N Sheng, W Zhang, Y-M Zhang, Y-L Deng, Y Shi, Z-Y Shen
The rat orthotopic liver transplantation model with extremely short anhepatic phase was established to study its protective effect on the recipients and graft. One hundred fifty adult male Wistar rats were randomly divided into three groups: group A (n = 30), using magnetic rings for the suprahepatic vena cava reconstruction; group B (n = 30), using 7/0 Prolene sutures for suprahepatic vena cava running anastomosis as control; and a sham-operated group (n = 30) as a blank control group. The changes in liver enzyme, serum creatinine, endotoxin, and cytokine levels and histopathology were recorded...
January 2018: Transplantation Proceedings
https://www.readbyqxmd.com/read/29373089/multiparametric-mr-imaging-of-the-prostate-after-treatment-of-prostate-cancer
#12
Pritesh Patel, Melvy S Mathew, Igor Trilisky, Aytekin Oto
The use of multiparametric magnetic resonance (MR) imaging in prostate cancer therapy is increasing, as newer treatment methods and management approaches emerge. The mainstays of therapy-radiation and surgery-are being supplemented (and even replaced) by novel focal therapy methods. Laser and ultrasonographic ablation, photodynamic therapy, electroporation, and cryoablation are the most common focal therapies, each with its own imaging findings. Typical ablation zones have a central focus of enhancement with peripheral rim enhancement; thus, dynamic contrast material-enhanced (DCE) MR imaging is the most important sequence for evaluation of treatment in the immediate posttherapeutic setting...
March 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29362282/-a-ruptured-middle-cerebral-artery-dissecting-aneurysm-operation-in-a-2-year-old-boy
#13
Shigeru Oya, Issei Kiko, Kenichiro Suyama, Takanori Suzuki, Kuniatsu Yamamoto, Hidetoshi Mochida, Saburo Watanabe, Hideharu Karasawa
We report the case of a ruptured dissecting aneurysm in an infant. A 2-year-old boy suffered sudden headache and nausea. CT scan revealed a subarachnoid hemorrhage, and digital subtraction angiography(DSA)revealed a dissecting aneurysm(3.9mm)at a branch of the right middle cerebral artery(MCA). Eight days after onset, carotid angiography revealed enlargement of the aneurysm(up to 6.8 mm). Right frontotemporal craniotomy and aneurysm trapping with STA-MCA bypass was performed. Two years and two months later, the aneurysm recurred as assessed by magnetic resonance angiography(MRA)...
January 2018: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/29340993/laparoscopic-assisted-modified-intersphincter-resection-for-ultralow-rectal-cancer
#14
Haiyang Zhou, Canping Ruan, Zhiguo Wang, Zhiqian Hu
BACKGROUND: Intersphincter resection (ISR) is considered to be a superior technique offering sphincter preservation in patients with ultralow rectal cancer.1 Because high-definition laparoscopy offers wider and clearer vision into the narrow pelvic cavity and intersphincteric space, ISR has been further refined.2 However, functional outcome after ISR has not been optimal. More than half of patients receiving ISR suffer partial or even complete anal incontinence.3 We therefore propose a laparoscopic-assisted modified ISR, with the aim of improving sphincter function following ISR...
April 2018: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29223327/restoration-of-motor-function-after-operative-reconstruction-of-the-acutely-transected-spinal-cord-in-the-canine-model
#15
Zehan Liu, Shuai Ren, Kuang Fu, Qiong Wu, Jun Wu, Liting Hou, Hong Pan, Linlin Sun, Jian Zhang, Bingjian Wang, Qing Miao, Guiyin Sun, Vincenzo Bonicalzi, Sergio Canavero, Xiaoping Ren
BACKGROUND: Cephalosomatic anastomosis or what has been called a "head transplantation" requires full reconnection of the respective transected ends of the spinal cords. The GEMINI spinal cord fusion protocol has been developed for this reason. Here, we report the first randomized, controlled study of the GEMINI protocol in large animals. METHODS: We conducted a randomized, controlled study of a complete transection of the spinal cord at the level of T10 in dogs at Harbin Medical University, Harbin, China...
December 6, 2017: Surgery
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
#16
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
#17
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
#18
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
#19
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
#20
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
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