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https://www.readbyqxmd.com/read/28822084/giant-biatrial-myxoma-with-two-different-gross-findings
#1
Taiyo Kuroda, Yukifusa Yokoyama, Satoshi Yuhara, Hideyuki Okawa, Hiroki Hasegawa, Jun Yokote, Shuji Tamaki, Shinji Mii
We experienced a giant biatrial myxoma concomitant with hepatocellular carcinoma. Most of myxomas originate from the left atrium, and biatrial myxomas are extremely rare. Excision of the giant cardiac tumor was performed to avoid risks of life-threatening complications. The resected mass was grossly composed of two parts with the border of interatrial septum and with the shape of peanut shell. Although microscopic examinations revealed enlarged vessels, hemorrhages and hemosiderosis in the left part and high cellularity with chronic inflammation in the right part, spindle-shaped cells in a loose myxoid stroma were observed in both parts of the tumor, consistent with the diagnosis of myxoma...
August 18, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28820836/the-surgeon-s-fist-with-the-thumb-up-to-guide-the-design-and-inset-of-the-osteoseptocutaneous-fibula-flap-in-mandibular-reconstruction
#2
Nidal F Al Deek, Chung-Kan Tsao, Fu-Chan Wei
Successful reconstruction of the oromandibular defect with the osteoseptocutaneous fibula flap necessitates flawless design and inset, an experience-demanding endeavor. Laterality of the fibula flap has been thought to pose a certain challenge to the reconstruction. To address this concern and guide flap design and inset, the authors propsed using the surgeon's fist with the thumb up to replicate key anatomic land marks of the fibula flap: the peroneal vessels and proximal bone end, the posterior crural septum including the septal vessels, the skin, and the lateral surface of the fibula bone...
August 8, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28820653/fibrous-skeleton-of-the-heart-anatomic-overview-and-evaluation-of-pathologic-conditions-with-ct-and-mr-imaging
#3
Farhood Saremi, Damián Sánchez-Quintana, Shumpei Mori, Horia Muresian, Diane E Spicer, Cameron Hassani, Robert H Anderson
The fibrous skeleton is concentrated at the base of the ventricular mass. It provides electrical insulation at the atrioventricular level and fibrous continuity for the leaflets of the mitral, aortic, and tricuspid valves. Its components include the fibrous trigones, the fibrous area of aortic-mitral continuity, the subvalvar collar of the mitral valve, the membranous septum, the interleaflet triangles, the tendon of Todaro, and likely the conus ligament. The majority of the mitral annulus is fibrous, but the only true fibrous part of the tricuspid annulus is where the valvar leaflets are attached to the central fibrous body...
August 18, 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28820555/satellite-atrial-septal-vegetations-secondary-to-mitral-valve-endocarditis
#4
Germán Cedielq, Marta Guillen Marzo, Ramón de Castro Aritmendiz, Jairo Toro Gil, Alfredo Bardají
Infective endocarditis is a challenging clinical problem with a high rate of mortality. Early recognition of this disease, and especially its complications, remain a critical task for the cardiologist. In this scenario, atrial endocarditis is a rare and sometimes unrecognized complication of mitral valve endocarditis. Herein is reported a clinical case that shows how a satellite vegetation in the atrial septum can be produced in a patient with mitral regurgitation secondary to mitral valve endocarditis. Video 1: Transthoracic echocardiography showing the presence of vegetation in the posterior mitral leaflet, severe secondary mitral regurgitation, and satellite vegetation in the atrial septum...
March 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28817752/technical-refinements-and-outcomes-of-the-modified-anterior-septal-transplant
#5
Myriam Loyo, Jeffrey D Markey, Deniz Gerecci, Edward El Rassi, Ryan J Li, C Blake Sullivan, Tom D Wang
Importance: Severe anterior septal deviation and resultant nasal obstruction represent a difficult surgical task to correct. The goal of surgery is to straighten the anterior dorsal and caudal struts, while maintaining nasal tip and midvault support. This study presents a novel extracorporeal septoplasty technique to straighten the crooked anterior septum. Objective: To describe the novel anterior septal transplant technique, which consists of complete resection of the caudal septum and reconstruction with extended spreader grafts and a columellar strut, without a separate caudal septal replacement graft...
August 17, 2017: JAMA Facial Plastic Surgery
https://www.readbyqxmd.com/read/28816631/platypnea-orthodeoxia-syndrome-an-unusual-presentation-of-a-complex-disease
#6
Tess Van Meerhaeghe, Steven Droogmans, Shane Hanon, Jeroen Sonck
BACKGROUND: Platypnea-orthodeoxia syndrome (POS) is an uncommon disorder characterized by dyspnea (=platypnea) and desaturation (=orthodeoxia) in upright position and improvement of symptoms and blood oxygenation in supine position. Clinical presentation is heterogeneous and often confuses the clinician. OBJECTIVES: The present case report illustrates a complicated presentation of the underlying syndrome. METHODS: Description of a POS case in a 73-year-old female with thorough workup and tailored treatment...
August 17, 2017: Acta Clinica Belgica
https://www.readbyqxmd.com/read/28815373/autologous-nasal-chondrocytes-delivered-by-injectable-hydrogel-for-in-vivo-articular-cartilage-regeneration
#7
Wenliang Chen, Changhua Li, Maoxiu Peng, Bingju Xie, Lei Zhang, Xiaojun Tang
Cell based tissue engineering serves as a promising strategy for articular cartilage repair, which remains a challenge both for researchers and clinicians. The aim of this research was to assess the potential of autologous nasal chondrocytes (NCs) combined with alginate hydrogel as injectable constructs for rabbit articular cartilage repair. Autologous nasal chondrocytes were isolated from rabbit nasal septum, expanded either on monolayer or in 3D alginate hydrogel. In vitro, DNA quantification revealed that NCs can proliferate stable in 3D alginate matrix, but slower than that cultured in monolayer...
August 16, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28814342/septal-contributions-to-olfactory-bulb-interneuron-diversity-in-the-embryonic-mouse-telencephalon-role-of-the-homeobox-gene-gsx2
#8
Shenyue Qin, Stephanie M Ware, Ronald R Waclaw, Kenneth Campbell
BACKGROUND: Olfactory bulb (OB) interneurons are known to represent diverse neuronal subtypes, which are thought to originate from a number of telencephalic regions including the embryonic dorsal lateral ganglionic eminence (dLGE) and septum. These cells migrate rostrally toward the OB, where they then radially migrate to populate different OB layers including the granule cell layer (GCL) and the outer glomerular layer (GL). Although previous studies have attempted to investigate regional contributions to OB interneuron diversity, few genetic tools have been used to address this question at embryonic time points when the earliest populations are specified...
August 16, 2017: Neural Development
https://www.readbyqxmd.com/read/28813670/nkx2-1-is-required-in-the-embryonic-septum-for-cholinergic-system-development-learning-and-memory
#9
Lorenza Magno, Caswell Barry, Christoph Schmidt-Hieber, Polyvios Theodotou, Michael Häusser, Nicoletta Kessaris
The transcription factor NKX2-1 is best known for its role in the specification of subsets of cortical, striatal, and pallidal neurons. We demonstrate through genetic fate mapping and intersectional focal septal deletion that NKX2-1 is selectively required in the embryonic septal neuroepithelium for the development of cholinergic septohippocampal projection neurons and large subsets of basal forebrain cholinergic neurons. In the absence of NKX2-1, these neurons fail to develop, causing alterations in hippocampal theta rhythms and severe deficiencies in learning and memory...
August 15, 2017: Cell Reports
https://www.readbyqxmd.com/read/28812909/chronic-orbital-inflammatory-disease-and-optic-neuropathy-associated-with-long-term-intranasal-cocaine-abuse-2-cases-and-literature-review
#10
Martin J Siemerink, Nicole J M Freling, Peerooz Saeed
Orbital inflammatory disease and secondary optic neuropathy is a rare but devastating complication of long-term intranasal cocaine abuse. We describe 2 patients with a history of intranasal cocaine consumption who presented with subacute onset of unilateral vision loss from optic neuropathy and limitation of abduction in the affected eye. Magnetic resonance imaging findings included an orbital mass in combination with absent nasal septum and partial destruction of the paranasal sinuses. Biopsies and histopathologic examination of the nasal cavity and the orbital mass revealed chronic inflammation...
August 16, 2017: Orbit
https://www.readbyqxmd.com/read/28812126/myocardial-iodine-concentration-measurement-using-dual-energy-computed-tomography-for-the-diagnosis-of-cardiac-amyloidosis-a-pilot-study
#11
Virgile Chevance, Thibaud Damy, Vania Tacher, François Legou, Fourat Ridouani, Alain Luciani, Hicham Kobeiter, Alain Rahmouni, Jean-François Deux
OBJECTIVE: To measure myocardium iodine concentration (MIC) in patients with cardiac amyloidosis (CA) using dual-energy computed tomography (DECT). METHODS: Twenty-two patients with CA, 13 with non-amyloid hypertrophic cardiomyopathies (CH) and 10 control patients were explored with pre-contrast, arterial and 5-minute DECT acquisition (Iomeprol; 1.5 mL/kg). Inter-ventricular septum (IVS) thickness, blood pool iodine concentration (BPIC), MIC (mg/mL), iodine ratio and extra-cellular volume (ECV) were calculated...
August 10, 2017: European Radiology
https://www.readbyqxmd.com/read/28810634/misdiagnosis-of-a-cloacal-exstrophy-variant-as-urorectal-septum-malformation-in-a-fetus-by-ultrasound-a-case-report
#12
Yang-Qing Xu, Xiao-Hong Yang, Xin-Lin Chen, Xiu-Qiin Ji, Sheng Zhao
Cloacal exstrophy variants are comprised of a wide range of characteristics, of which there are four primary features, including omphalocele, bladder exstrophy, an imperforate anus and spina bifida. The existing literature regarding the differential diagnosis from alternative urinary diseases prenatally are limited. If the bladder is present, defects in the ventral wall may not be visualized with prenatal ultrasound in certain conditions, including oligohydramnios, and differential diagnosis from urorectal septum malformation sequence is a challenge...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28807788/adolescent-binge-ethanol-exposure-alters-specific-forebrain-cholinergic-cell-populations-and-leads-to-selective-functional-deficits-in-the-prefrontal-cortex
#13
Gina M Fernandez, Lisa M Savage
Adolescence has been identified as a vulnerable developmental time period during which exposure to drugs can have long-lasting, detrimental effects. Although adolescent binge-like ethanol (EtOH) exposure leads to a significant reduction of forebrain cholinergic neurons, EtOH's functional effect on acetylcholine (ACh) release during behavior has yet to be examined. Using an adolescent intermittent ethanol exposure model (AIE), rats were exposed to binge-like levels of EtOH from postnatal day (PD) 25-55. Three weeks following the final EtOH exposure, cholinergic functioning was assessed during a spontaneous alternation protocol...
August 11, 2017: Neuroscience
https://www.readbyqxmd.com/read/28806831/clinical-sign-for-missed-decompression-of-a-separate-extensor-pollicis-brevis-compartment-in-de-quervain-s-disease
#14
Niels Benatar
Persistent pain despite previous surgery for de Quervain's disease might be due to an overlooked septum between the abductor pollicis longus tendon slips and the extensor pollicis brevis tendon, or an overlooked completely separate compartment for the extensor pollicis brevis tendon alone. In both of these instances, extension of the MP joint of the thumb against resistance elicits pain at the distal level of the first extensor compartment of the wrist. When this sign is positive, revisional surgery and decompression of the remaining septum or separate compartment is indicated...
August 2017: Handchirurgie, Mikrochirurgie, Plastische Chirurgie
https://www.readbyqxmd.com/read/28806289/augmentation-of-the-nasal-dorsum-using-the-multi-stripped-autologous-cartilage-technique-mact
#15
Liqiang Liu, Zhaoyun Bu, Jincai Fan, Jia Tian, Cheng Gan, Zengjie Yang, Hu Jiao
Nasal augmentation is a popular modern technique requested by many Asian people.There are two kinds of autologous cartilage used to augment the nose at present: carved as a monobloc or diced into pieces. Each approach has its pros and cons.We performed our surgical technique on a group of 28 patients. Twenty of these patients had had several rhinoplasties performed before referral to our hospital; 8 of these patients had undergone a primary rhinoplasty. bilateral conchal, nasal septum, or rib cartilage were harvested, deep temporal fascia or abdominal muscle fascia to be prepared for packing stripped cartilage were also removed at this time...
August 3, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28803901/the-cubital-tunnel-syndrome-caused-by-the-intraneural-or-extraneural-ganglion-cysts-case-report-and-review-of-the-literature
#16
Wen Kai Chang, Yong Ping Li, Deng Feng Zhang, Bing Sheng Liang
Cubital tunnel syndrome is the second most common nerve compression syndrome in peripheral nerve compression disease. Although potential ulnar nerve entrapment can occur at multiple points along its course, such as the arcade of struthers, the medial intermuscular septum, the medial epicondyle, the cubital tunnel, and the deep flexor pronator aponeurosis, the most common site of entrapment is the cubital tunnel. However, cubital tunnel syndrome could also be caused by the occupying masses along the course of ulnar nerve, such as intraneural or extraneural ganglia...
July 6, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28803685/quantification-of-pulmonary-regurgitation-by-vector-flow-mapping-in-congenital-heart-patients-after-repair-of-right-ventricular-outflow-obstruction-a-preliminary-study
#17
Ashley Hoi-Man To, Vivian Wing-Yi Li, Ming-Yen Ng, Yiu-Fai Cheung
BACKGROUND: Vector flow mapping (VFM) enables direct visualization of flow pattern and estimation of flow volume. The aim of this study was to determine its accuracy in the quantification of pulmonary regurgitation (PR) in congenital heart patients after repair of right ventricular (RV) outflow obstruction. METHODS: This study comprised two parts: (1) validation of VFM in the quantification of PR in patients with repaired tetralogy of Fallot by cardiac magnetic resonance and (2) clinical application of VFM to determine PR in patients after biventricular repair of pulmonary atresia and stenosis with intact ventricular septum...
August 10, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28803631/primary-tuberculosis-of-the-nasal-septum-the-non-ulcerated-form-presenting-as-septal-thickening
#18
Neeraj Aggarwal, Mainak Dutta, Ramanuj Sinha
No abstract text is available yet for this article.
August 10, 2017: Acta Otorrinolaringológica Española
https://www.readbyqxmd.com/read/28803342/alleviation-of-arsenic-induced-pulmonary-oxidative-damage-by-gspe-as-shown-during-in-vivo-and-in-vitro-experiments
#19
Meng Wei, Fangming Guo, Dongsheng Rui, Haixia Wang, Gangling Feng, Shugang Li, Guanling Song
A long-term exposure to arsenic may lead to lung damage due to oxidative stress. In this context, GSPE can play a major role as a strong antioxidant. Our study attempted to reveal the connection between arsenic-induced lung injury and the antagonistic effect of GSPE. For this purpose, BEAS-2B cells and Kunming mice were exposed to different dosages of As2O3 and GSPE. Oxidative stress indicators were detected both in vivo and in vitro. Cell survival rate and morphological changes in the lung tissue (H&E staining) were evaluated as well...
August 12, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28803112/in-vivo-documentation-of-shape-and-position-changes-of-mri-visible-mesh-placed-in-rectovaginal-septum
#20
Urbankova Iva, Sindhwani Nikhil, Callewaert Geertje, Turri Alice, Rinkijevic Rita, Hympanova Lucie, Feola Andrew, Deprest Jan
BACKGROUND AND OBJECTIVE: Large deformations in synthetic meshes used in pelvic organ prolapse surgery may lead to suboptimal support for the underlying tissue, graft-related complications as well as recurrence. Our aim was to quantify in vivo longitudinal changes in mesh shape and geometry in a large animal model. We compare two commonly used mesh shapes, armed and flat, that are differently affixed. The secondary outcomes were active and passive biomechanical properties. METHODS: A total of 18 animals were used...
August 5, 2017: Journal of the Mechanical Behavior of Biomedical Materials
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