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abdominal anatomy

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https://www.readbyqxmd.com/read/29141786/intraluminal-thrombus-is-associated-with-early-rupture-of-abdominal-aortic-aneurysm
#1
Stephen J Haller, Jeffrey D Crawford, Katherine M Courchaine, Colin J Bohannan, Gregory J Landry, Gregory L Moneta, Amir F Azarbal, Sandra Rugonyi
BACKGROUND: The implications of intraluminal thrombus (ILT) in abdominal aortic aneurysm (AAA) are currently unclear. Previous studies have demonstrated that ILT provides a biomechanical advantage by decreasing wall stress, whereas other studies have associated ILT with aortic wall weakening. It is further unclear why some aneurysms rupture at much smaller diameters than others. In this study, we sought to explore the association between ILT and risk of AAA rupture, particularly in small aneurysms...
November 12, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29130229/-discovery-anatomy-and-clinical-significance-of-the-mesorectal-finish-line-of-total-mesorectal-excision
#2
Pan Chi, Xiaojie Wang, Guoxian Guan, Huiming Lin, Ying Huang, Weizhong Jiang
OBJECTIVE: To investigate the surgical endpoint of separation of mesorectum during total mesorectal excision (TME), suggesting the concept of "terminal line", in order to perform above separation better for middle-low rectal cancer. METHODS: Gross anatomy of mesorectum endpoint from 81 surgical specimens of low anterior resection (LAR, 5 to 6 cm of distance from low margin of cancer to anal edge) and 71 surgical specimens of abdominal perineal resection(APR, <5 cm of distance from low margin of cancer to anal edge) was observed...
October 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/29114928/a-new-substitute-for-formalin-application-to-embalming-cadavers
#3
Yoshinori Haizuka, Miki Nagase, Satoshi Takashino, Yasushi Kobayashi, Yoshihisa Fujikura, George Matsumura
The development of formalin-free fixatives is an urgent issue in gross anatomy because of the health hazard and the tissue-hardening actions of formalin. We recently identified the fixative, antimicrobial, and preservative effects of N-vinyl-2-pyrrolidone (NVP), a precursor of the water-soluble macromolecular polymer polyvinylpyrrolidone, in animal experiments. The aim of the present study is to investigate whether NVP solution can be used as an alternative to formalin in human cadaveric dissection. Twelve donated cadavers were infused with NVP via the femoral and common carotid arteries using a peristaltic pump...
November 7, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/29114109/frequency-of-acccessory-renal-arteries-diagnosed-by-computerized-tomography
#4
Sabina Prevljak, Edin Prelevic, Salih Mesic, Odey Ali Abud, Spomenka Kristic, Sandra Vegar-Zubovic
Introduction: Accessory renal arteries play a significant role in kidney and abdominal aorta surgery, and renovascular hypertension. In the published literature, the frequency varies considerably, depending on the size of the sample, the method of examination and the ethnic group. Materials and Methods: The aim of this study is to determine the general frequency of accessory renal arteries, their frequency in relation to gender, the origin and the vascularization area, and to determine the differences in left-right and bilateral distribution...
September 2017: Acta Informatica Medica: AIM
https://www.readbyqxmd.com/read/29092714/pylephlebitis-presenting-as-spontaneous-coronary-sinus-thrombosis-a-case-report
#5
Michael A Hart, Mengistu A Simegn
BACKGROUND: Coronary sinus thrombosis is a rare phenomenon. When identified, it most often is a complication of infective endocarditis or procedural intervention. We present an unusual and unreported case of spontaneous coronary sinus thrombosis as embolic sequela of an intra-abdominal infectious process. CASE PRESENTATION: We report a case of a 61-year-old white woman with a history of end-stage renal disease on hemodialysis, paroxysmal atrial fibrillation not on long-term systemic anticoagulation, and history of recurrent diverticulitis that presented with acute onset abdominal pain and nausea...
November 2, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/29089705/open-cholecystectomy-has-a-place-in-the-laparoscopic-era-a-retrospective-cohort-study
#6
Ayman El Nakeeb, Youssef Mahdy, Aly Salem, Mohamed El Sorogy, Ahmed Abd El Rafea, Mohamed El Dosoky, Rami Said, Mohamed Abd Ellatif, Mohamed M A Alsayed
Laparoscopic cholecystectomy (LC) is considered the gold standard for treatment of symptomatic gallbladder stones and has replaced the traditional open cholecystectomy (OC). The aim of this study is to evaluate the proper indications of the primary OC and conversion from LC and their predictive factors. This study includes all patients who underwent cholecystectomy between January 2011 and June 2016, whether open from the start (group A), conversion from laparoscopic approach (group B), or laparoscopic cholecystectomy (group C)...
October 2017: Indian Journal of Surgery
https://www.readbyqxmd.com/read/29089283/occurrence-and-classification-of-proximal-type-i-endoleaks-after-endovascular-aneurysm-sealing-using-the-nellix%C3%A2-device
#7
Leo H van den Ham, Andrew Holden, Janis Savlovskis, Andrew Witterbottom, Kenneth Ouriel, Michel M P J Reijnen
OBJECTIVE/BACKGROUND: Proximal type I endoleaks are associated with abdominal aortic aneurysm (AAA) growth and rupture and necessitate repair. The Nellix™ EndoVascular Aneurysm Sealing (EVAS) system is a unique approach to AAA repair, where the appearance and treatment of endoleaks is also different. This study aimed to analyse and categorise proximal endoleaks in an EVAS treated cohort. METHODS: All patients, treated from February 2013 to December 2015, in 15 experienced EVAS centres, presenting with proximal endoleak were included...
October 28, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/29078246/-surgeon-modified-stent-grafts-in-emergency-cases-as-addition-to-off-the-shelf-stent-grafts-for-complex-abdominal-and-thoracoabdominal-aortic-pathologies
#8
Franziska Heidemann, Tilo Kölbel, Sebastian Debus, Christian-Alexander Behrendt, Holger Diener, Fiona Rohlffs, Nikolaos Tsilimparis
Background Endovascular techniques have revolutionised the therapy of abdominal and thoracoabdominal aortic disease. For infrarenal abdominal aortic aneurysm, the endovascular aortic repair has become a standard for elective and emergent cases. In complex abdominal or thoracoabdominal aortic pathologies, involving reno-visceral vessels, there are technical challenges for open and endovascular surgery. Due to high mortality and morbidity of open surgery of complex aortic lesions, especially in emergent cases, endovascular techniques have developed as well...
October 2017: Zentralblatt Für Chirurgie
https://www.readbyqxmd.com/read/29078159/challenging-case-of-horseshoe-kidney-double-fracture
#9
Francesco Cortese, Pietro Fransvea, Roberto Marcello, Alessandra Saputelli, Luca Lepre, Aldo Gioffrè, Gabriele Sganga
INTRODUCTION: Renal injuries occur in 10% of blunt abdominal traumas, 7% of these occur in kidneys with congenital or acquired disorders. Trauma of horseshoe kidney is an uncommon finding. PRESENTATION OF A CASE: We present the case of 31 year-old caucasian man with no remarkable personal records, who was brought to our Trauma Unit soon after being involved in a motorcycle collision. A Contrast Enhanced - Multi Detector Computed Tomography (ce-MDCT) revealed a double disconnection of a horseshoe kidney...
October 10, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29076681/anatomical-variants-of-celiac-trunk-hepatic-and-renal-arteries-in-a-population-of-developing-country-using-multidetector-computed-tomography-angiography
#10
Muhammad Arifuzzaman, Syeda Sawaira Nasim Naqvi, Hatem Adel, Syed Omair Adil, Mahreen Rasool, Munawar Hussain
BACKGROUND: Multidetector Computed Tomography (MDCT)s has become a major part in evaluation of hepatic and renal tumours. With improvements in MDCT, CT angiography has also improved and normal anatomy and its variants in patients undergoing operative or interventional procedures can be effectively studied. The purpose of this study was to evaluate the frequency of anatomical variation of celiac trunk, hepatic and renal arterial systems in patients undergoing multidetector CT (MDCT) angiography of the abdominal aorta...
July 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/29068903/redefining-the-rectus-sheath-implications-for-abdominal-wall-repair
#11
Imran R A Punekar, Joseph S Khouri, Michael Catanzaro, Aizaz L Shaikh, Howard N Langstein
BACKGROUND: The abdominal wall is frequently manipulated in a variety of reconstructive procedures, and its anatomy is well described. Our clinical observations, however, contradict the standard depiction of the components of the abdominal wall at various levels - particularly regarding the course of the transversus abdominis muscle (TA). Therefore, we sought to characterize the components of the rectus sheath at various anatomic levels corresponding to surgical landmarks in order to define key points relevant to abdominal wall repair...
October 13, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29068584/hydronephrosis-in-the-course-of-ureteropelvic-junction-obstruction-an-underestimated-problem-current-opinions-on-the-pathogenesis-diagnosis-and-treatment
#12
REVIEW
Wojciech Krajewski, Joanna Wojciechowska, Janusz Dembowski, Romuald Zdrojowy, Tomasz Szydełko
Ureteropelvic junction obstruction (UPJO) causes a reduction in the urine flow from the renal pelvis into the ureter. Untreated UPJO may cause hydronephrosis, chronic infection or urolithiasis and will often result in progressive deterioration of renal function. Most cases of UPJO are congenital; however, the disease can be clinically silent until adulthood. Other causes, both intrinsic and extrinsic, are acquired and include urolithiasis, post-operative/inflammatory/ischemic stricture, fibroepithelial polyps, adhesions and malignancy...
August 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/29067207/abdominal-ultrasonography-of-the-healthy-howler-monkey-alouatta-fusca
#13
Raquel Sartor, Thiago R Müller, Maria J Mamprim, Carlos R Teixeira, Livia P de Souza, Ricardo C Lehmkuhl, Marilia G Luciani
Abdominal ultrasonography was performed in six healthy adult brown howler monkeys Alouatta fusca and the normal ultrasonographic anatomy of the liver, gallbladder, stomach and urinary tract described for the first time. Findings were compared with post-mortem studies. The renal cortex was isoechoic to the spleen and isoechoic or hyperechoic to the liver. Kidney length and renal arterial resistive index, systolic and diastolic velocity were calculated. The liver showed a homogeneous hypoechogenic echotexture...
February 2017: Veterinary Medicine and Science
https://www.readbyqxmd.com/read/29064554/the-comparative-anatomy-of-the-folds-fossas-and-adhesions-around-the-duodenojejunal-flexure-in-mammals
#14
Masaharu Ishida, Naoaki Sakata, Ichiro Ise, Tomoyuki Ono, Mitsuhiro Shimura, Kentaro Ishii, Megumi Murakami, Tatsuyuki Takadate, Takeshi Aoki, Katsuyoshi Kudo, Shinobu Ohnuma, Koji Fukase, Hideo Ohtsuka, Masamichi Mizuma, Hiroki Hayashi, Kei Nakagawa, Takanori Morikawa, Fuyuhiko Motoi, Takeshi Naitoh, Michiaki Unno
BACKGROUND: Anatomical knowledge of the duodenojejunal flexure is necessary for abdominal surgeries, and also important for physiologic studies about the duodenum. But little is known about the anatomy of this region in mammals. AIM: Here, we examined comparative anatomy to understand the anatomical formation of the duodenojejunal flexure in mammals. MATERIALS AND METHODS: The areas around the duonenojejunal flexure were observed in mouse, rat, dog, pig, and human, and the anatomical structures around the duodenojejunal junction in the animals were compared with those in human...
October 24, 2017: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/29055878/laparoscopic-hemicolectomy-for-a-patient-with-situs-inversus-totalis-a-case-report
#15
Kazuhito Sasaki, Hiroaki Nozawa, Kazushige Kawai, Keisuke Hata, Tomomichi Kiyomatsu, Toshiaki Tanaka, Takeshi Nishikawa, Kensuke Otani, Manabu Kaneko, Shigenobu Emoto, Koji Murono, Toshiaki Watanabe
INTRODUCTION: Situs inversus totalis (SIT) is a rare congenital anomaly in which the left and right aspects of the thoracic and intra-abdominal organs are inverted, like a mirror image. Surgical procedures in a patients with SIT is difficult as their anatomy is abnormal. In particular, laparoscopic procedures are considered more difficult in patients with SIT because of the mirror-image anatomy. PRESENTATION OF CASE: The patient was a 75-year-old woman with ascending colon cancer...
October 16, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29044713/investigation-of-umbilical-venous-vessels-anatomy-and-diameters-as-a-guideline-for-catheter-placement-in-newborns
#16
F Eifinger, Z Fuchs, F Koerber, T Persigehl, M Scaal
Umbilical cord catheters (UCC) are important for the primary care of critically ill newborns. To analyze anatomical variations of the umbilical vein (UV) and its further course, we performed abdominal spiral-CT examinations on stillborns. The aim of the study was to explore the high incidence of mal-positioned UCCs and to improve their positioning. Eighteen stillborns were investigated (29.2 weeks ± 6.7 weeks (IQR)). CTs were performed using either air or contrast medium injection into the UV. We measured the diameter at the narrowest points of (i) the umbilical vein, (ii) the segmental portal vein, (iii) the left portal vein, (iv) the umbilical recess, and (v) the ductus venosus...
October 17, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/29044646/topographical-anatomy-of-the-intestines-during-in-utero-physiological-herniation
#17
Baik Hwan Cho, Ji Hyun Kim, Zhe Wu Jin, Joerg Wilting, José Francisco Rodríguez-Vázquez, Gen Murakami
Because most malrotations of the small intestine are thought to occur during repackaging, the location of the intestine should vary less during physiological herniation than afterwards. Examination of serial sagittal sections of 27 embryos and fetuses (gestational age six to nine weeks; crown-rump length 15-45 mm) during herniation showed that the jejunum and ascending colon passed through a small opening of the hernia sac at the levels of the stomach and pancreas in 16 specimens. Below the pancreas, a definite mesentery extended between the ascending and descending colon in the abdominal cavity...
October 17, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/29041834/quality-assessment-of-the-detailed-anomaly-ultrasound-scan
#18
Athena P Souka, Athanasios Pilalis, Ioannis Papastefanou, Makarios Eleftheriadis, George Papadopoulos
OBJECTIVES: The objective of this study is to assess the quality of the views in the detailed anomaly ultrasound scan and examine the parameters that influence it. METHODS: Prospective study on singleton pregnancies examined at 20-24 weeks. Detailed views of all fetal organs were classified by the examiner as optimal/suboptimal. The duration of the examination was observed. Maternal characteristics, Fat Index (FI) (distance between the skin and the surface of the uterus), and fetal position were recorded...
October 17, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29032253/laparoscopic-dissection-of-extensive-secondary-disseminated-peritoneal-leiomyomatosis-dpl
#19
Karicha Mairaing, Kuan-Gen Huang
STUDY OBJECTIVE: To demonstrate a minimal invasive surgical (MIS) technique for curative excision of extensive secondary disseminated peritoneal leiomyomatosis (DPL). SETTING: In MIS, the myoma has to be divided into small fragments for piecemeal retrieval through a small incision [1], a widely used technique is morcellation (confined or unconfined) [2]. Disseminated peritoneal leiomyomatosis (DPL) is a rare sequel following laparoscopic morcellation. Since this entity is rarely reported, this video demonstrates laparoscopic technique for safe removal of DPL post laparoscopic myomectomy and morcellation...
October 12, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/29026619/16s-rrna-deep-sequencing-identifies-actinotignum-schaalii-as-the-major-component-of-a-polymicrobial-intra-abdominal-infection-and-implicates-a-urinary-source
#20
Andrew Bryan, Lindsey M Kirkpatrick, John J Manaloor, Stephen J Salipante
Introduction. It can be difficult to catalogue the individual organisms comprising polymicrobial patient infections, both because conventional clinical microbiological culture does not facilitate the isolation and enumeration of all members of a complex microbial community, and because fastidious organisms may be mixed with organisms that grow rapidly in vitro. Empiric antimicrobial treatment is frequently employed based on the anatomical site and the suspected source of the infection, especially when an appropriately collected surgical specimen is not obtained...
May 2017: JMM Case Reports
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