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https://www.readbyqxmd.com/read/29324920/technetium-99m-dimercaptosuccinic-acid-renal-scintigraphy-can-guide-clinical-management-in-congenital-hydronephrosis
#1
Biljana Bazić-Đorović, Marija Radulović, Marija Šišić, Ljiljana Jauković, Sanja Dugonjić, Dragan Pucar, Zoran Janković, Slobodanka Beatović, Milica Janković, Zoran Krstić, Boris Ajdinović
OBJECTIVE: The purpose of this study was to evaluate damage of the kidney with technetium-99m-dimercaptosuccinic acid (99mTc-DMSA) scintigraphy in children with congenital hydronephrosis (CH) and the influence of other postnatal associated diagnoses on abnormal 99mTc-DMSA findings. SUBJECTS AND METHODS: 99mTc-DMSA scintigraphy in 54 children (17 girls and 37 boys), aged from 2 months to 5 years (median 11 months) with 66 congenital hydronephrotic renal units (RU) (42 unilateral hydronephrosis-29 boys and 13 girls; 12 bilateral hydronephrosis-8 boys and 4 girls) was performed...
September 2017: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/29284881/postoperative-chylothorax-of-unclear-etiology-in-a-patient-with-right-sided-subclavian-central-venous-catheter-placement
#2
Samie Asghar, Faisal Shamim
A young male underwent decompressive craniotomy for an intracerebral bleed. A right-sided subclavian central venous catheter was placed in the operating room after induction of anesthesia. Postoperatively, he was shifted to Intensive Care Unit (ICU) for mechanical ventilation due to low Glasgow coma scale. He had an episode of severe agitation and straining on the tracheal tube in the evening same day. On the 2nd postoperative day in ICU, his airway pressures were high, and chest X-ray revealed massive pleural effusion on right side...
October 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/29276109/determining-patient-risk-factors-associated-with-accelerated-growth-of-popliteal-artery-aneurysms
#3
Ryan S Cousins, David J Dexter, Sadaf S Ahanchi, Brandon C Cain, Obie M Powell, Sarah B Ongstad, Niraj M Parikh, Jean M Panneton
OBJECTIVE: The objective of this study was to determine the natural progression of popliteal artery aneurysms (PAAs) and clinical variables associated with their accelerated growth. METHODS: Retrospective chart review of 224 patients with encounters between January 2008 and May 2016 and with at least one PAA was conducted. From this group, 65 asymptomatic patients had either unilateral (n = 43) or bilateral (n = 22) PAAs that were observed for at least 1 year of medical management before intervention...
December 22, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29258249/strain-evolution-in-cold-warm-forged-steel-components-studied-by-means-of-ebsd-technique
#4
Paolo Ferro, Franco Bonollo, Fabio Bassan, Filippo Berto
Electron BackScatter Diffraction (EBSD) in conjunction with Field-Emission Environmental Scanning Electron Microscopy (FEG-ESEM) has been used to evaluate the microstructural and local plastic strain evolution in different alloys (AISI 1005, AISI 304L and Duplex 2205) deformed by a single-stage cold and warm forging process. The present work is aimed to describe the different behavior of the austenite and ferrite during plastic deformation as a function of different forging temperatures. Several topological EBSD maps have been measured on the deformed and undeformed states...
December 18, 2017: Materials
https://www.readbyqxmd.com/read/29242066/external-polytetrafluoroethylene-reinforcement-of-varicose-autologous-vein-grafts-in-peripheral-bypass-surgery-produces-durable-bypass-function
#5
Achim Neufang, Christine Espinola-Klein, Savvas Savvidis, Walther Schmiedt, Alicia Poplawski, Christian Friedrich Vahl, Bernhard Dorweiler
OBJECTIVE: Use of autologous veins as peripheral bypass graft may become critical in the presence of significant varicose degeneration of the harvested vein. External support of such dilated veins with standard polytetrafluoroethylene (PTFE) prostheses was recommended as an option to use these veins for peripheral bypass. A single-center experience with this technique regarding long-term graft function, secondary reinterventions, and potential graft degeneration is presented. METHODS: Between January 1995 and January 2006, there were 54 patients with varicose veins who underwent 57 consecutive infrainguinal vein bypass operations with PTFE reinforcement in 57 limbs...
December 11, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29240053/-method-of-preventive-ultrasound-diagnosis-of-venous-thrombosis
#6
I M Ignat'ev, A R Zubarev, E G Gradusov, E Iu Iupatov, N V Krivosheeva
AIM: The purpose of the study was to work out a method of preventive diagnosis of venous thromboses by means of ultrasonographic duplex scanning (USDS). PATIENTS AND METHODS: A total of 306 people were examined. Of these, 146 patients presented with acute venous thrombosis, 108 subjects suffered from varicose veins, and 52 were apparently healthy people composing the control group. All those enrolled into the study were examined by means of USDS, with the D-dimer level determined...
2017: Angiologii︠a︡ i Sosudistai︠a︡ Khirurgii︠a︡, Angiology and Vascular Surgery
https://www.readbyqxmd.com/read/29234535/is-transurethral-incision-better-than-upper-pole-partial-nephrectomy-for-management-of-duplex-system-ureterocoele-diagnosed-in-the-first-year-of-life
#7
Amr Hodhod, Yasser A Noureldin, Mohamed El-Sherbiny
Objective: To compare the outcomes of transurethral incision (TUI) and upper pole partial nephrectomy (PN) in patients with duplex system ureterocoele (DSU). Patients and methods: We retrospectively reviewed the medical charts of patients who presented with DSU in the first-year of life and were managed with either TUI or PN. Patients' demographics, ultrasonography examinations, voiding cystourethrogram studies, and dimercaptosuccinic acid scans were reviewed. Also, the postoperative vesico-ureteric reflux status and febrile urinary tract infection occurrences, and subsequent surgical interventions were identified...
December 2017: Arab Journal of Urology
https://www.readbyqxmd.com/read/29217434/upper-limb-ischemia-by-subclavian-artery-dissection-after-osteopathic-manipulation
#8
Carine Boulon, Alexandre Maillet, Pierre Salaun, Sophie Skopinski, Joël Constans
We report the case of a young woman who experienced ischemia of upper limb after osteopathic manipulation. Duplex and CT scan showed wall hematoma of the ostium of subclavian artery. The patient spontaneously recovered so that no surgery was necessary. Dissection of vertebral and carotid arteries has been reported after osteopathic manipulations. We report ischaemia of upper limb secondary to dissection of subclavian artery. Arterial dissections associated with manipulation should be recorded in a register in order to assess more carefully the vascular risk that this method carries...
December 4, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29214861/podiatry-ankle-duplex-scan-readily-learned-and-accurate-in-diabetes
#9
Pasha Normahani, Katarzyna Powezka, Mohammed Aslam, Nigel J Standfield, Usman Jaffer
We aimed to train podiatrists to perform a focused duplex ultrasound scan (DUS) of the tibial vessels at the ankle in diabetic patients; podiatry ankle (PodAnk) duplex scan. Thirteen podiatrists underwent an intensive 3-hour long simulation training session. Participants were then assessed performing bilateral PodAnk duplex scans of 3 diabetic patients with peripheral arterial disease. Participants were assessed using the duplex ultrasound objective structured assessment of technical skills (DUOSATS) tool and an "Imaging Score"...
January 1, 2017: Angiology
https://www.readbyqxmd.com/read/29203042/-treatment-of-radiation-induced-iliofemoral-arterial-complications-with-groin-radionecrosis
#10
J-M Fichelle
Long-term iliofemoral complications induced by radiation include vascular (arterial and venous) lesions, nervous lesions and soft tissue loss that can be cutaneous and subcutaneous and potentially lead to radionecrosis with vessel exposure. We present five cases of groin radionecrosis. There were three men and two women (age 30-73 years). Radiotherapy had been delivered 15 years earlier in three cases, and 2 years earlier in two cases. Symptoms were intermittent claudication (n=1), critical ischemia (n=1), and septic hemorrhage (n=1)...
December 2017: Journal de Médecine Vasculaire
https://www.readbyqxmd.com/read/29201520/transurethral-incision-of-ureteroceles-in-paediatric-age-group
#11
Hemanshi Shah, Charu Tiwari, Neha Sisodiya Shenoy, Pankaj Dwivedi, Suraj Gandhi
Objective: Ureteroceles are a great clinical challenge because of variations in anatomy and clinical presentations. We present our experience with primary transurethral incision of ureteroceles in children. Material and methods: Data of thirteen children managed for ureterocele from 2009 to 2016 was retrospectively analyzed with respect to age, sex, clinical presentation and symptomatology, type and localization of ureterocele, investigations, surgical management and follow-up...
December 2017: Turkish Journal of Urology
https://www.readbyqxmd.com/read/29188080/oxidation-characteristics-of-porous-nickel-prepared-by-powder-metallurgy-and-cast-nickel-at-1273%C3%A2-k-in-air-for-total-oxidation-time-of-100%C3%A2-h
#12
Lamiaa Z Mohamed, Wafaa A Ghanem, Omayma A El Kady, Mohamed M Lotfy, Hafiz A Ahmed, Fawzi A Elrefaie
The oxidation behavior of two types of inhomogeneous nickel was investigated in air at 1273 K for a total oxidation time of 100 h. The two types were porous sintered-nickel and microstructurally inhomogeneous cast-nickel. The porous-nickel samples were fabricated by compacting Ni powder followed by sintering in vacuum at 1473 K for 2 h. The oxidation kinetics of the samples was determined gravimetrically. The topography and the cross-section microstructure of each oxidized sample were observed using optical and scanning electron microscopy...
November 2017: Journal of Advanced Research
https://www.readbyqxmd.com/read/29155195/unreliability-of-the-duplex-scan-in-diagnosing-corporeal-venous-occlusive-disease-cvod-in-young-healthy-males-with-erectile-deficiency-ed
#13
Giorgio Cavallini, Carlo Maretti
OBJECTIVE: To define the role of cavernosal venous occlusive dysfunction (CVOD) as the only cause of erectile dysfunction (ED). MATERIALS AND METHODS: Patients meeting the CVOD criteria without any risk factors for organic ED were randomized into 2 groups; the end diastolic velocity (EDV), peak systolic velocity (PSV) and resistive index (RI) of their cavernosal arteries were assessed using color duplex Doppler ultrasound (CDDU) after intracavernous injection of Alprostadil 10 mcg (ICI)...
November 16, 2017: Urology
https://www.readbyqxmd.com/read/29150366/optimal-ultrasound-criteria-for-grading-stenosis-of-the-superficial-femoral-artery
#14
Mingjie Gao, Yang Hua, Xinyu Zhao, Lingyun Jia, Jie Yang, Beibei Liu
This retrospective study determined the duplex ultrasound scanning criteria for detecting 50%-69% and 70%-99% stenosis of the superficial femoral artery (SFA). Examinations of 278 limbs in 185 patients with peripheral arterial disease were performed. Duplex ultrasound scanning was used to measure the diameter of the vascular lumen, the peak systolic velocity (PSV) at the stenotic segment of the SFA (PSVst), the segment proximal to the stenosis (PSVpro) and the popliteal artery (PSVpop, distal to the stenosis)...
November 14, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/29142342/prevalence-of-subclinical-peripheral-vascular-disease-in-obese-egyptian-patients
#15
Jehan Ahmed Younes, Nahla Dessoki El-Sayed, Ayman Ismail Kamel
Objective: To detect subclinical peripheral vascular disease in obese Egyptian patients and establish relations between obesity, metabolic risk factors, and PVD. Methods: This was a prospective case-control study including 100 obese patients (BMI >30) (G1). In addition, 100 age and sex matched non-obese healthy subjects as a control group (G2). Both groups were subjected to duplex ultrasound, Radionuclide muscle scan. Angiography was done for 17 patients. Results: The image pattern of 99mTc-MIBI muscles uptake was studied and perfusion reserve (PR%) was calculated in (G1) and (G2)...
October 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/29122970/a-novel-form-of-rna-double-helix-based-on-g%C3%A2-u-and-c%C3%A2-a-wobble-base-pairing
#16
Ankur Garg, Udo Heinemann
Wobble base pairs are critical in various physiological functions and have been linked to local structural perturbations in double helical structures of nucleic acids. We report a 1.38-Å resolution crystal structure of an antiparallel octadecamer RNA double helix in overall A conformation, which includes a unique, central stretch of six consecutive wobble base pairs (W helix) with two G·U and four rare C·A+ wobble pairs. Four adenines within the W helix are N1-protonated and wobble-base-paired with the opposing cytosine through two regular hydrogen bonds...
November 9, 2017: RNA
https://www.readbyqxmd.com/read/29102862/reno-portal-shunt-for-liver-transplant-an-alternative-inflow-for-recipients-with-grade-iii-iv-portal-vein-thrombosis-tips-for-a-better-outcome
#17
Mustafa Nazzal, Yifei Sun, Obi Okoye, Laurence Diggs, Neil Evans, Tamara Osborn, Kambiz Etesami, Chintalapati Varma
INTRODUCTION: Portal vein thrombosis (PVT) poses an extremely difficult problem in cirrhotic patients who are in need of a liver transplant. The prevalence of PVT in patients with cirrhosis ranges from 0.6% to 26% Nery et al. (2015) [1]. The presence of PVT is associated with more technically difficult liver transplant and in certain cases can be a contraindication to liver transplant. The only option for these patients with extensive PVT would be a multi-visceral transplant, the later unfortunately has a much higher morbidity and mortality compared to liver only transplant Smith et al...
October 12, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29079007/ten-year-outcome-analysis-of-the-italian-excluder-registry-with-the-gore-excluder-endograft-for-infrarenal-abdominal-aortic-aneurysms
#18
Giovanni Pratesi, Gabriele Piffaretti, Fabio Verzini, Giovanni De Blasis, Patrizio Castelli, Carlo Pratesi
OBJECTIVE: The objective of this study was to report the 10-year outcomes of the multicenter Italian Excluder Registry for elective endovascular aneurysm repair (EVAR). METHODS: A retrospective analysis of all patients who underwent elective EVAR using the Gore Excluder (W. L. Gore & Associates, Flagstaff, Ariz) endograft (EG) at four Italian centers between 1998 and 2006 was carried out. Follow-up consisted of duplex ultrasound scan and computed tomography performed at 1 month, 6 months, and 12 months and yearly thereafter...
October 24, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29075528/ultrasound-diagnostics-of-a-spontaneous-arteriovenous-fistula-of-the-head-and-neck
#19
Maria Vadimovna Zakharkina, Andrey Olegovich Chechetkin, Marina Victorovna Krotenkova, Rodion Nikolaevich Konovalov
An arteriovenous fistula is an abnormal connection between the arterial and venous systems. In the literature, there are well-described ultrasound findings of iatrogenic arteriovenous fistula as a potential complication from percutaneous transarterial or transvenous procedures. The most important sign is direct visualization of the fistula in the place of the access site. It is necessary to look for secondary signs of arterialization of the veins, which can suggest a diagnosis of an arteriovenous fistula. However, the accuracy and diagnostic quality of duplex scanning in the diagnostics of a congenital or spontaneous arteriovenous fistula of the head and neck area in adults have been poorly described in the literature...
September 2017: Journal of Ultrasonography
https://www.readbyqxmd.com/read/29045738/the-proposed-role-of-ultrasound-in-the-management-of-giant-cell-arteritis-in-routine-clinical-practice
#20
Sara Monti, Alberto Floris, Cristina B Ponte, Wolfgang A Schmidt, Andreas P Diamantopoulos, Claudio Pereira, Sophie Vaggers, Raashid A Luqmani
Objective: To develop and explore a protocol for using colour duplex sonography (CDS) in the routine care of GCA. Methods: We tested CDS of temporal arteries and axillary arteries (AXs) on consecutive patients with suspected or established GCA, between July 2014 and September 2016. Results: We assessed 293 patients [age 72 (10), female/male 196/97], of whom 118 had clinically confirmed GCA. Seventy-three percent of patients had already received high-dose glucocorticoids (GCs) for 17 (33) days...
October 16, 2017: Rheumatology
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