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https://www.readbyqxmd.com/read/28810040/vascular-density-of-retinal-capillary-plexuses-in-different-subtypes-of-macular-hole
#1
Luisa Pierro, Alessandro Rabiolo, Lorenzo Iuliano, Marco Gagliardi, Davide Panico, Francesco Bandello
BACKGROUND AND OBJECTIVE: To compare vessel density and the foveal avascular zone (FAZ) area among eyes with full-thickness macular hole (FTMH), lamellar macular hole (LMH), and macular pseudohole (MPH) using optical coherence tomography angiography (OCTA). PATIENTS AND METHODS: Cross-sectional study involving 10 eyes with idiopathic FTMH, 10 eyes with LMH, 10 eyes with MPH, 17 unaffected fellow eyes, and 10 healthy controls. All patients underwent 3 mm × 3 mm OCTA centered on the macula...
August 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28810036/evaluation-of-macular-perfusion-in-healthy-smokers-by-using-optical-coherence-tomography-angiography
#2
Ziya Ayhan, Mahmut Kaya, Taylan Ozturk, Omer Karti, F Hakan Oner
BACKGROUND AND OBJECTIVE: To investigate the macular perfusion changes in healthy smokers by using optical coherence tomography angiography (OCTA). PATIENTS AND METHODS: OCTA measurements were taken for the right eyes of 40 smokers (Group 1) and age- and sex-matched control cases (Group 2). Group 1 underwent OCTA scanning with the XR Avanti AngioVue OCTA (Optovue, Fremont, CA) at baseline and at 5 minutes, 30 minutes, and 60 minutes after one standard cigarette smoking...
August 1, 2017: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/28809629/-talar-neck-fractures-treated-using-percutaneous-screw-fixation
#3
R Veselý, M Kelbl, J Kacián, V Hulka, J Kočiš, R Kunovský
PURPOSE OF THE STUDY Closed reduction and percutaneous fixation of nondisplaced talar neck fractures have been applied by some authors. The aim of this paper is to assess the results and complications of this minimally invasive technique. MATERIAL AND METHODS In the period from 2009 to 2014, twenty-one patients with a talar neck fracture were observed after closed reduction and percutaneous screw fixation in the Traumatological Hospital in Brno. The mean age of the patients was 38 years (range 18-56 years)...
2017: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
https://www.readbyqxmd.com/read/28808768/high-resolution-mri-3t-mri-in-diagnosis-of-wrist-pain-is-diagnostic-arthroscopy-still-necessary
#4
Sabine Ochman, B Wieskötter, M Langer, V Vieth, M J Raschke, C Stehling
INTRODUCTION: 3T MRI has become increasingly available for better imaging of interosseous ligaments, TFCC, and avascular necrosis compared with 1.5T MRI. This study assesses the sensitivity and specificity of 3T MRI compared with arthroscopy as the gold standard. PATIENTS AND METHODS: Eighteen patients were examined with 3T MRI using coronal T1-TSE; PD-FS; and coronal, sagittal, and axial contrast-enhanced T1-FFE-FS sequences. Two musculoskeletal radiologists evaluated the images independently...
August 14, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28804740/avascular-necrosis-of-the-humeral-head-following-bilateral-upper-extremity-vascular-composite-allotransplantation-a-case-report
#5
Jacob Rinkinen, David Molway, Matthew Carty, George S M Dyer, Bohdan Pomahac, Anil Chandraker, Simon G Talbot
Vascularised composite allotransplantation (VCA) represents an exciting and emerging field in plastic and reconstructive surgery. Despite the generally good functional and psychosocial outcomes, multiple complications can be associated with the procedure. The authors describe a case of avascular necrosis of the humeral head following successful upper extremity VCA.
2017: Case Reports in Plastic Surgery & Hand Surgery
https://www.readbyqxmd.com/read/28804464/retinal-vascular-autoregulation-during-phase-iv-of-the-valsalva-maneuver-an-optical-coherence-tomography-angiography-study-in-healthy-chinese-adults
#6
Yuan Zong, Huan Xu, Jian Yu, Chunhui Jiang, Xiangmei Kong, Yi He, Xinghuai Sun
The impairment of retinal vascular autoregulation can be an early manifestation of many systemic and ocular diseases. Therefore, quantifying retinal vascular autoregulation in a non-invasive manner is very important. This study evaluated the effects of a Valsalva maneuver (VM)-induced blood pressure increases on retinal vascular autoregulation. Parafoveal and peripapillary retinal vessel density were measured with optical coherence tomography angiography before (baseline) and 5 s after each subject completed a VM (Phase IV [VM-IV])...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28802420/dhs-osteosynthesis-with-internal-bone-grafting-in-unstable-delayed-presented-intracapsular-neck-femur-fractures
#7
Wasudeo M Gadegone, R M Chandak, Vijayanand R Lokhande
OBJECTIVES: The aim of this study was to assess fracture union and complications following use of dynamic hip screw (DHS) with internal bone grafting in treatment of unstable delayed presented intracapsular neck femur fractures in patients younger than 65 years of age. MATERIAL AND METHODS: Thirty two patients with displaced intracapsular neck femur fractures(Garden III and IV, Pauwels III, with comminution) with delayed presentation (15-60 days) in the 45-65 year age group (mean 54...
August 2017: Injury
https://www.readbyqxmd.com/read/28801039/kohler-s-disease-presenting-as-acute-foot-injury
#8
Mazin Alhamdani, Christopher Kelly
Kohler's disease is rare cause of foot pain and limping in the pediatric population. The exact etiology of Kohler's disease is unknown. It usually presents as sudden and unexplained foot pain and limping. We report a case of a 5-year-old male who presented to the Pediatric Emergency Department with foot pain and inability to bear weight for two days after overactivity and acute foot injury. The patient was eventually diagnosed with Kohler's disease (avascular necrosis of the navicular bone). Although Kohler's disease is not very common, it should be considered in the differential diagnosis of foot pain in the pediatric population, as it may prevent unnecessary tests and treatments...
August 2, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28798204/imaging-igf-i-uptake-in-growth-plate-cartilage-using-in-vivo-multiphoton-microscopy
#9
Maria A Serrat, Gabriela Ion
Bones elongate through endochondral ossification in cartilaginous growth plates located at ends of primary long bones. Linear growth ensues from a cascade of biochemical signals initiated by actions of systemic and local regulators on growth plate chondrocytes. Although cellular processes are well defined, there is a fundamental gap in understanding how growth regulators are physically transported from surrounding blood vessels into and through dense, avascular cartilage matrix. Intravital imaging using in vivo multiphoton microscopy is one promising strategy to overcome this barrier by quantitatively tracking molecular delivery to cartilage from the vasculature in real time...
August 10, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28796040/primary-malignant-mesenchymoma-of-bladder-case-report-and-review-of-the-literature
#10
Zecheng Yang, Xiaodong Yang, Xianqi Lu, Lijian Gao, Gang Li, Xuefeng Zhang
RATIONALE: Malignant mesenchymoma (MM) is defined as a heterogeneous malignant soft tissue tumor that consists of 2 or more distinctly different mesenchymal components in addition to fibrosarcomatous elements. Bladder MM was rarely reported in the literature and there are only 5 cases of primary bladder MM documented in English literature to date. PATIENT CONCERNS: A 58-year-old male complained of difficulty in urination and intermittent gross hematuria for 3 months...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28791883/dermatofibroma-sonographic-findings-and-pathologic-correlation
#11
Kyu Yeoun Won, So Young Park, Wook Jin, Bark-Lynn Lew
Background Ultrasound has been increasingly used for the evaluation of superficial soft tissue lesions. Dermatofibroma is one of the most common dermal lesions. Experiences in ultrasound examinations of dermatofibromas have been accumulated. Purpose To evaluate sonographic findings of dermatofibroma and to correlate them with pathologic findings. Material and Methods A total of 18 dermatofibromas in 15 patients were included. Sonographic findings were assessed for location, depth, size, shape, margin, spiculation, echogenicity, internal hyperechoic dots, change in echogenicity of adjacent soft tissue, and vascularity, by two musculoskeletal radiologists in consensus...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28791491/retinal-vegf-levels-correlate-with-ocular-circulation-measured-by-a-laser-speckle-micro-system-in-an-oxygen-induced-retinopathy-rat-model
#12
Tadashi Matsumoto, Yuta Saito, Takashi Itokawa, Tomoaki Shiba, Mari S Oba, Haruo Takahashi, Yuichi Hori
PURPOSE: We used a Laser speckle flowgraphy (LSFG)-micro system to examine the relationship between ocular blood flow and retinal vascular endothelial growth factor (VEGF) at retinopathy onset in oxygen-induced ischemic retinopathy (OIR) model rats. METHODS: Sixteen 50/10 OIR rats were compared with 17 control rats reared in room air. In postnatal day 14 (P14) and P18 rats, we measured and analyzed the left eye's mean blur rate (MBR) by setting a rubber band on the optic nerve head center, using the LSFG-Micro...
August 8, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28791147/two-types-of-bone-necrosis-in-the-middle-triassic-pistosaurus-longaevus-bones-the-results-of-integrated-studies
#13
Dawid Surmik, Bruce M Rothschild, Mateusz Dulski, Katarzyna Janiszewska
Avascular necrosis, diagnosed on the basis of either a specific pathological modification of the articular surfaces of bone or its radiologic appearance in vertebral centra, has been recognized in many Mesozoic marine reptiles as well as in present-day marine mammals. Its presence in the zoological and paleontologic record is usually associated with decompression syndrome, a disease that affects secondarily aquatic vertebrates that could dive. Bone necrosis can also be caused by infectious processes, but it differs in appearance from decompression syndrome-associated aseptic necrosis...
July 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28790551/bilateral-subcapital-femoral-neck-fracture-in-a-28-year-old-postpartum-woman
#14
Miroslav Kezunovic, Nikola Bulatovic, Vojin Kadic
INTRODUCTION: Subcapital femoral neck fractures are associated with high morbidity and mortality. These fractures mostly occur as a result of a high-force impact from traffic accidents and a fall from a great height, though non-traumatic forms are described in transient osteoporosis during the second half of pregnancy, in convulsions during electric shock, eclampsia, hypocalcemia, osteomalacia, renal osteodystrophy and myeloma. CASE REPORT: In this report we present a bilateral subcapital femoral neck fracture in a woman sustained two days after delivery...
April 2017: Medical Archives
https://www.readbyqxmd.com/read/28790417/impact-of-minocycline-on-vascularization-and-visual-function-in-an-immature-mouse-model-of-ischemic-retinopathy
#15
Wenqin Xu, Jie Yin, Lijuan Sun, Zhicha Hu, Guorui Dou, Zifeng Zhang, Haiyan Wang, Changmei Guo, Yusheng Wang
The role of microglia in the pathophysiology of ischemic retinal diseases has been extensively studied. Retinal microglial activation may be correlated with retinal neovascularization in oxygen-induced retinopathy (OIR), an animal model that has been widely used in retinopathy of prematurity (ROP) research. Minocycline is an antibiotic that decreases microglial activation following hyperoxic and hypoxic-ischemic phases in neonatal rodents. Here, we investigated the effects of minocycline on vascularization and visual function...
August 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28782448/risk-factors-associated-with-intraoperative-complications-in-primary-shoulder-arthroplasty
#16
Paul D Cowling, Philip Holland, Lucksy Kottam, Paul Baker, Amar Rangan
Background and purpose - Increasing numbers of shoulder arthroplasty are performed internationally. The predictors of intraoperative complications when implanting primary shoulder replacements are unknown. We determined the incidence of intraoperative complications during primary shoulder arthroplasty using the National Joint Registry of England, Wales, Northern Ireland and the Isle of Man (NJR), and analyzed the associated risk factors for complications. Patients and methods - NJR data on primary shoulder arthroplasty were scrutinized for intraoperative complications...
August 7, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28781889/evaluation-of-macular-and-peripapillary-vessel-flow-density-in-eyes-with-no-known-pathology-using-optical-coherence-tomography-angiography
#17
Muhammad Hassan, Mohammad Ali Sadiq, Muhammad Sohail Halim, Rubbia Afridi, Mohamed K Soliman, Salman Sarwar, Aniruddha Agarwal, Diana V Do, Quan Dong Nguyen, Yasir Jamal Sepah
PURPOSE: To assess normal vessel flow density (VFD) in macular and peripapillary regions of eyes with no known ocular pathology using optical coherence tomography angiography (OCTA). METHODS: AngioVue (Optovue, Fremont, CA, USA) was used to capture OCTA images. A 3 × 3 mm grid and a 4.5 × 4.5 mm grid was used to scan parafoveal and peripapillary regions, respectively. ReVue software was utilized to measure VFD in five sectors within the inner two circles of ETDRS grid in macular region and correlated to retinal thickness of same sectors...
2017: International Journal of Retina and Vitreous
https://www.readbyqxmd.com/read/28775329/transient-ingrowth-of-lymphatic-vessels-into-the-physiologically-avascular-cornea-regulates-corneal-edema-and-transparency
#18
Deniz Hos, Anne Bukowiecki, Jens Horstmann, Felix Bock, Franziska Bucher, Ludwig M Heindl, Sebastian Siebelmann, Philipp Steven, Reza Dana, Sabine A Eming, Claus Cursiefen
Lymphangiogenesis is essential for fluid homeostasis in vascularized tissues. In the normally avascular cornea, however, pathological lymphangiogenesis mediates diseases like corneal transplant rejection, dry eye disease, and allergy. So far, a physiological role for lymphangiogenesis in a primarily avascular site such as the cornea has not been described. Using a mouse model of perforating corneal injury that causes acute and severe fluid accumulation in the cornea, we show that lymphatics transiently and selectively invade the cornea and regulate the resolution of corneal edema...
August 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28774681/sildenafil-improves-blood-perfusion-in-steroid-induced-avascular-necrosis-of-femoral-head-in-rabbits-via-a-protein-kinase-g-dependent-mechanism
#19
Qichun Song, Jianlong Ni, Hongyuan Jiang, Zhibin Shi
OBJECTIVE: The aim of the study were to evaluate the effect of sildenafil against avascular necrosis of femoral head (ANFH) in a rabbit model, and to study the role of protein kinase G (PKG) pathway and vascular endothelial growth factor (VEGF) in ANFH. METHODS: Three weeks after inducing ANFH with methylprednisolone injection, 45 female adult New Zealand white rabbits were divided into three groups and treated as follows: group SI received daily intraperitoneal sildenafil with a dose of 10 mg/kg per day; group SD received daily sildenafil identically to group SI plus auricular vein injection DT3 (a specific PKG inhibitor); group NS received only normal saline...
July 31, 2017: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/28774452/imaging-of-posttraumatic-arthritis-avascular-necrosis-septic-arthritis-complex-regional-pain-syndrome-and-cancer-mimicking-arthritis
#20
REVIEW
Andrey Rupasov, Usa Cain, Simone Montoya, Johan G Blickman
This article focuses on the imaging of 5 discrete entities with a common end result of disability: posttraumatic arthritis, a common form of secondary osteoarthritis that results from a prior insult to the joint; avascular necrosis, a disease of impaired osseous blood flow, leading to cellular death and subsequent osseous collapse; septic arthritis, an infectious process leading to destructive changes within the joint; complex regional pain syndrome, a chronic limb-confined painful condition arising after injury; and cases of cancer mimicking arthritis, in which the initial findings seem to represent arthritis, despite a more insidious cause...
September 2017: Radiologic Clinics of North America
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