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https://www.readbyqxmd.com/read/28630847/hyperplasia-of-lamina-and-spinous-process-of-c5-vertebrae-and-associated-hemivertebra-at-c4-level
#1
Raja Rameez Farooqi, Mufti Mehmood, Hilal A Kotwal
INTRODUCTION: Congenital variants of the cervical spine may mimic traumatic lesions and may cause recurrent episodes of pain. The spectrum of cervical variants includes persistent apophyses of the transverse processes, persistent epiphyses, vertebral platyspondylia, vertebral hypoplasia, and dysplasia of the vertebral arch. Furthermore, abnormalities of the spinous process have been described including doubled spinous processes and hypertrophies. Unilateral hyperplasia of a spinous process is a rare finding that has only been described rarely as case reports...
January 2017: Journal of Orthopaedic Case Reports
https://www.readbyqxmd.com/read/28622724/porphyrin-arch-tapes-synthesis-contorted-structures-and-full-conjugation
#2
Norihito Fukui, Taeyeon Kim, Dongho Kim, Atsuhiro Osuka
Porphyrin tapes possessing meso-meso β-β β-β triple direct linkages have been targets of extensive studies because of their fully conjugated characteristic π-electronic networks. In this paper, we report porphyrin arch-tapes that bear additional carbonyl group(s) or methylene group(s) inserted between one of the β-β linkage(s) of the porphyrin tapes. The carbonyl-inserted porphyrin arch-tapes were efficiently synthesized by double fusion reactions of β-to-β carbonyl-bridged porphyrin oligomers with DDQ and Sc(OTf)3, and were converted to the methylene-bridged porphyrin arch-tapes via Luche reduction with NaBH4 and CeCl3 followed by ionic hydrogenation with HBF4·OEt2 and BH3·NEt3...
June 16, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28598178/multidisciplinary-approach-to-the-treatment-of-double-bilateral-upper-permanent-incisors-in-a-young-boy
#3
G F Ferrazzano, P Festa, T Cantile, V D'Antò, A Ingenito, R Martina
BACKGROUND: A double tooth is a rare developmental anomaly referring to the fusion of two adjacent tooth buds or the gemination of a single bud. CASE REPORT: This case report describes the multidisciplinary approach to an 11-year-old patient with two double upper permanent incisors. The clinical intraoral examination showed a mixed dentition with bilateral double maxillary central incisors, molar Class I malocclusion and palatal ectopy of two lateral upper incisors...
June 2017: European Journal of Paediatric Dentistry: Official Journal of European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/28583734/thoracic-endovascular-aortic-repair-with-branched-inoue-stent-graft-for-arch-aortic-aneurysms
#4
Junichi Tazaki, Kanji Inoue, Hirooki Higami, Nobuya Higashitani, Masanao Toma, Naritatsu Saito, Masahide Kawatou, Takeshi Kimura
BACKGROUND: Thoracic endovascular aortic repair (TEVAR) for thoracic aortic aneurysms (TAAs) is in rapid expansion due to its minimal invasiveness. However, TEVAR for an arch aneurysm with a straight stent graft needs surgical reconstruction for supra-aortic vessels. A branched stent graft pioneered by Inoue (branched Inoue Stent Graft [ISG]) has been expected to resolve this problem, but its utility remains to be established in the real clinical setting. This study evaluated the long-term clinical outcome of branched ISGs for TAAs...
June 2, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28579227/d-tga-combined-with-left-arch-atresia-of-a-double-aortic-arch
#5
Dan Zhou, Laichun Song, Liang Tao, Hong Zhou
A three-month-old female underwent an arterial switch operation for transposition of the great arteries (TGA) with concomitant ventricular septal defect (VSD). After the operation, the patient suffered from stubborn pulmonary infection with increased airway resistance, and could not be weaned from a ventilator. Multispiral computed tomography (CT) scanning suggested a double aortic arch with left arch atresia. The patient underwent a second procedure to resection the left aortic arch. The patient gradually recovered and was successfully weaned from the ventilator...
May 5, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28548474/aortic-aneurysm-endovascular-treatment-with-the-parallel-graft-technique-from-the-aortic-arch-to-the-iliac-axis
#6
Gian F Fadda, Mario Marino, Holta Kasemi, Costantino L DI Angelo, Carlo P Dionisi, Valeria Cammalleri, Carlo Setacci
BACKGROUND: The chimney technique has been developed for the treatment of complex aortic aneurysms. We analyzed the midterm to long-term outcomes of this approach from a single- centre experience. METHODS: From October 2008 to July 2016, 58 patients underwent endovascular aortic aneurysm repair using the chimney technique. Indications for treatment were thoracic aortic aneurysm (TAA) (n = 11), thoracoabdominal aortic aneurysm (TAAA) (n = 2), pararenal aortic aneurysm (PAAA) (n= 15), aortoiliac/isolated hypogastric artery aneurysm (n = 25), type I endoleak after previous TEVAR/EVAR (n=4), proximal pseudoaneurysm after AAA open repair (n = 1)...
May 26, 2017: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28546044/endovascular-repair-of-thoraco-abdominal-and-arch-aneurysms-in-patients-with-connective-tissue-disease-using-branched-and-fenestrated-devices
#7
Rachel E Clough, Teresa Martin-Gonzalez, Katrien Van Calster, Adrien Hertault, Rafaëlle Spear, Richard Azzaoui, Jonathan Sobocinski, Stéphan Haulon
INTRODUCTION: Prophylactic open surgery is the standard practice in patients with connective tissue and thoraco-abdominal (TAAA) and aortic arch disease. Branched and fenestrated devices offer a less invasive alternative but there are concerns regarding the durability of the repair and the effect of the stent graft on the fragile aortic wall. The aim of this study was to evaluate mid-term outcomes of fenestrated and/or branched endografting in patients with connective tissue disease. METHODS: All patients with connective tissue disease that underwent TAAA or arch aneurysm repair using a fenestrated and/or branched endograft in a single high volume centre between 2004 and 2015 were included...
May 22, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28539129/double-aortic-arch-presenting-with-a-foreign-object-in-the-oesophagus-a-case-report-and-imaging-diagnosis
#8
Xiuzhen Yang, Jingjing Ye, Zhan Gao
In this article, we report a rare case of double aortic arch. The case presented initially with a foreign object in the oesophagus. The patient was a 2-year-old boy, who was referred with primary symptoms of tussis (15 days) and emesis (2 days). He had a history of ingesting a coin. Routine chest X-ray indicated a rounded, metal foreign object in the upper oesophagus. A half-Yuan coin was removed by gastroduodenoscopy. Echocardiographic imaging suggested that the patient had double aortic arch, which was subsequently diagnosed by CT angiography with three-dimensional reconstruction...
May 25, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28530132/development-of-a-high-fidelity-pressurized-porcine-beating-heart-simulator-for-cardiac-surgery-training
#9
Igo B Ribeiro, Janet M C Ngu, Gurinder Gill, Fraser D Rubens
BACKGROUND: Development of a high-fidelity cardiac surgery simulator (CSS) requires integration of a heart model with a mock cardiopulmonary bypass (CPB) circuit that can provide feedback to mimic the pathophysiology of cardiac surgery. However, the cost of commercially available simulators precludes regular use. We describe steps in the construction of a high-fidelity CSS that integrates a pulsatile paracorporeal ventricular-assist device (Pulse-VAD) and a commercially available CPB simulator...
May 1, 2017: Perfusion
https://www.readbyqxmd.com/read/28527933/silent-balanced-double-aortic-arch-with-descending-thoracic-aneurysm-in-an-elderly-patient
#10
Yasunori Iida, Tsutomu Ito, Takahiko Misumi, Hideyuki Shimizu
No abstract text is available yet for this article.
June 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28520543/double-aortic-arch-with-a-retroaortic-innominate-vein-a-rare-association-diagnosed-using-cardiac-magnetic-resonance-imaging
#11
Rowan Walsh, Valerie Cracchiolo
No abstract text is available yet for this article.
May 2017: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/28502544/first-experience-with-the-double-chimney-technique-in-the-treatment-of-aortic-arch-diseases
#12
Tun Wang, Chang Shu, Quan-Ming Li, Ming Li, Xin Li, Hao He, Alan Dardik, Jian Qiu
OBJECTIVE: The objective of this study was to summarize our initial experience using the double chimney technique to treat aortic arch diseases. METHODS: From December 2009 to October 2016, 23 patients with aortic arch diseases, including 20 acute aortic dissections, 2 aortic arch aneurysms, and 1 type I endoleak after thoracic endovascular aortic repair (TEVAR), were treated using a double chimney technique. An emergent operation was performed in only one patient with an acute aortic dissection for severe left lower extremity ischemia...
May 11, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28482739/absent-right-common-carotid-artery-associated-with-aberrant-right-subclavian-artery
#13
Akira Uchino, Kazuhiko Uwabe, Iichiro Osawa
Rarely, the external and internal carotid arteries arise separately from the brachiocephalic trunk and right subclavian artery (SA) or the aortic arch and reflect the absence of a common carotid artery (CCA). We report a 45-year-old man with absent right CCA associated with aberrant right SA, an extremely rare combination, diagnosed by computed tomography (CT) angiography during follow-up for postoperative aortic dissection. Retrospective careful observation of preoperative postcontrast CT revealed the absent right CCA...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28444501/validation-of-numerical-simulation-methods-in-aortic-arch-using-4d-flow-mri
#14
Shohei Miyazaki, Keiichi Itatani, Toyoki Furusawa, Teruyasu Nishino, Masataka Sugiyama, Yasuo Takehara, Satoshi Yasukochi
Computational fluid dynamics (CFD) are the gold standard in studying blood flow dynamics. However, CFD results are dependent on the boundary conditions and the computation model. The purpose of this study was to validate CFD methods using comparison with actual measurements of the blood flow vector obtained with four-dimensional (4D) flow magnetic resonance imaging (MRI). 4D Flow MRI was performed on a healthy adult and a child with double-aortic arch. The aortic lumen was segmented to visualize the blood flow...
April 25, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28394009/anatomical-variations-of-testicular-artery-a-review
#15
Ilangovan Kayalvizhi, Ravi Kant Narayan, Piyush Kumar
The testicular arteries (TAs) also known as Internal spermatic arteries are long and slender arteries usually arising from the anterolateral aspect of the abdominal aorta (AA), 2.5 cm to 5 cm caudal to the renal arteries (RA). The variation in testicular arteries may be found with respect to their origin, number or course. They can originate from the abdominal aorta itself at an abnormal level. If not arising from abdominal aorta the TA variants may arise from renal artery, supra renal artery or any one of the lumbar arteries...
April 10, 2017: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/28387611/thoracic-endovascular-aortic-repair-with-single-double-chimney-technique-for-aortic-arch-pathologies
#16
Tun Wang, Chang Shu, Ming Li, Quan-Ming Li, Xin Li, Jian Qiu, Kun Fang, Alan Dardik, Chen-Zi Yang
PURPOSE: To summarize a single-center experience using the single/double chimney technique in association with thoracic endovascular aortic repairs (TEVAR) for aortic arch pathologies. METHODS: From November 2007 to March 2016, 122 patients (mean age 50.4±12.7 years, range 29-80; 92 men) with aortic arch pathologies underwent TEVAR combined with single (n=101) or double (n=21) chimney grafts to reconstruct the supra-aortic branches: 21 innominate arteries, 114 left common carotid arteries, and 8 left subclavian arteries (LSA)...
March 1, 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28366551/outcomes-following-thoracotomy-or-thoracoscopic-vascular-ring-division-in-children-and-young-adults
#17
Melissa A Herrin, David Zurakowski, Francis Fynn-Thompson, Christopher W Baird, Pedro J Del Nido, Sitaram M Emani
OBJECTIVE: To determine the short- and intermediate-term outcomes following vascular ring division by video-assisted thoracoscopic (VATS) or thoracotomy approach. METHODS: This study is a retrospective review of patients with double aortic arch or right aortic arch with aberrant left subclavian artery and left ligamentum (RAA with LSCA/LL) who underwent division via left thoracotomy or VATS approach at a single institution. Outcome measures included operation duration (OR time), hospital length of stay (LOS), postoperative complications, and freedom from reintervention...
March 11, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28345111/prenatal-ultrasonic-diagnosis-and-differential-diagnosis-of-isolated-right-aortic-arch-with-mirror-image-branching
#18
Junxue Gao, Jiaan Zhu, Qiuyan Pei, Jianguo Li
PURPOSE: This study sought to evaluate the fetal echocardiography features of isolated right aortic arch (RAA) with mirror-image branching and to improve the rate and accuracy of prenatal diagnosis of this condition. METHODS: We reviewed fetal echocardiograms from all cases of isolated RAA with mirror-image branching diagnosed at our institution between August 2012 and December 2015 and classified these cases into normal and abnormal types of ductus arteriosus based on the course of the arterial duct arch...
May 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28329111/hypoplastic-left-heart-syndrome-a-novel-surgical-strategy-for-small-volume-centres
#19
Margaux Pontailler, Régis Gaudin, Marien Lenoir, Ayman Haydar, Diala Kraiche, Damien Bonnet, Pascal Vouhé, Olivier Raisky
OBJECTIVES: We describe in a prospective study, a novel surgical technique for the management of hypoplastic left heart syndrome inspired by the hybrid Norwood approach. METHODS: This new neonatal palliation comprises replacement of the patent ductus arteriosus (PDA) and aortic arch plasty with a pulmonary homograft associated with the banding of both pulmonary arteries and atrial septectomy, under cardiopulmonary bypass without aortic clamping and cardioplegia...
May 1, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28317554/chimpanzee-and-human-midfoot-motion-during-bipedal-walking-and-the-evolution-of-the-longitudinal-arch-of-the-foot
#20
Nicholas B Holowka, Matthew C O'Neill, Nathan E Thompson, Brigitte Demes
The longitudinal arch of the human foot is commonly thought to reduce midfoot joint motion to convert the foot into a rigid lever during push off in bipedal walking. In contrast, African apes have been observed to exhibit midfoot dorsiflexion following heel lift during terrestrial locomotion, presumably due to their possession of highly mobile midfoot joints. This assumed dichotomy between human and African ape midfoot mobility has recently been questioned based on indirect assessments of in vivo midfoot motion, such as plantar pressure and cadaver studies; however, direct quantitative analyses of African ape midfoot kinematics during locomotion remain scarce...
March 2017: Journal of Human Evolution
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