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https://www.readbyqxmd.com/read/28095914/vascular-mapping-of-the-retroauricular-skin-proposal-for-a-posterior-superior-surgical-incision-for-transcutaneous-bone-conduction-hearing-implants
#1
Adam Perenyi, Zsofia Bere, Janos Jarabin, Balazs Sztano, Edit Kukla, Ziad Bikhazi, Laszlo Tiszlavicz, Ferenc Toth, Jozsef Geza Kiss, Laszlo Rovo
BACKGROUND: Passive transcutaneous osseointegrated hearing implant systems have become increasingly popular more recently. The area over the implant is vulnerable due to vibration and pressure from the externally worn sound processor. Good perfusion and neural integrity has the potential to reduce complications. The authors' objective was to determine the ideal surgical exposure to maintain perfusion and neural integrity and decrease surgical time as a result of reduced bleeding. METHODS: The vascular anatomy of the temporal-parietal soft tissue was examined in a total of 50 subjects...
January 17, 2017: Journal of Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28094172/interval-changes-in-myocardial-performance-index-predict-outcome-in-severe-sepsis
#2
Junaid Nizamuddin, Feroze Mahmood, Avery Tung, Ariel Mueller, Samuel M Brown, Shahzad Shaefi, Michael O'Connor, Daniel Talmor, Sajid Shahul
OBJECTIVES: Septic cardiomyopathy is a well-described consequence of septic shock and is associated with increased sepsis-related mortality. The myocardial performance index (MPI), a parameter derived from echocardiographic tissue Doppler measurements, allows for a more sensitive assessment of global cardiac function than do traditional metrics for cardiac function. The authors hypothesized that changes in left ventricular MPI in patients with severe sepsis would be associated with a higher 90-day mortality...
November 2, 2016: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28091873/prediction-of-left-ventricular-contractile-recovery-using-tissue-doppler-strain-and-strain-rate-measurements-at-rest-in-patients-undergoing-percutaneous-coronary-intervention
#3
Ihab M Abdelgawwad, Ahmed A Al Hawary, Hanan M Kamal, Layla M Al Maghawry
The aim of the study was to assess the ability of tissue Doppler (TD) deformation analysis at rest to predict left ventricular contractile recovery in patients undergoing percutaneous coronary intervention (PCI). This prospective cohort enrolled 67 patients with segmental wall motion abnormality. Assessment of each segment was performed at rest and during low dose Dobutamine stress echocardiography (DSE) using a 4 point scoring system, TD peak systolic strain (PSS) and peak systolic strain rate (PSSR). The study followed up the patients for contractile improvement after 6 months of successful PCI by echocardiography...
January 13, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28090794/novel-sluggish-speed-signs-on-ultrasound-is-indicative-of-hemangiomas
#4
Taisuke Furuta, Shoji Shimose, Yuko Nakashima, Tadahiko Kubo, Mitsuo Ochi
Background Hemangiomas are sometimes difficult to diagnose with current techniques. Sluggish speed signs (SSS) are a phenomenon that: (i) cannot be depicted as Doppler flow on Doppler ultrasound; (ii) can be observed as fluid movements on Doppler ultrasound; and (iii) cannot be depicted as waveforms on pulse Doppler mode. We hypothesized that SSS could be diagnostic indicators for hemangiomas. Purpose To evaluate whether ultrasound findings, in particular those relating to SSS, are a reliable tool for detecting hemangiomas compared to magnetic resonance imaging (MRI) and the gold standard for hemangioma diagnosis: pathological examination by biopsy or after surgical resection...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28090255/clinical-utility-of-echocardiography-for-the-diagnosis-and-prognosis-in-children-with-bronchopulmonary-dsyplasia
#5
Young Earl Choi, Hwa Jin Cho, Eun Song Song, In Seok Jeong, Namsik Yoon, Young Youn Choi, Jae Sook Ma, Young Kuk Cho
BACKGROUND: Bronchopulmonary dysplasia (BPD) may result in chronic pulmonary artery hypertension and right ventricular (RV) dysfunction. Various echocardiographic assessments of RV dysfunction have been used to determine whether echocardiographic measurements of premature infants with BPD could provide sensitive measures of RV function that correlates with BPD severity. METHODS: Twenty-eight control subjects without BPD (non BPD group), 28 patients with mild BPD, 11 patients with moderate BPD, and six patients with severe BPD underwent echocardiograms with standard measurement such as ejection fraction by M-mode, tricuspid regurgitation pressure gradient, myocardial performance index (MPI) derived from pulse Doppler, and tissue Doppler imaging (TDI) measurements...
December 2016: Journal of Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/28086951/sodium-glucose-transporter-2-sglt2-inhibition-with-empagliflozin-improves-cardiac-diastolic-function-in-a-female-rodent-model-of-diabetes
#6
Javad Habibi, Annayya R Aroor, James R Sowers, Guanghong Jia, Melvin R Hayden, Mona Garro, Brady Barron, Eric Mayoux, R Scott Rector, Adam Whaley-Connell, Vincent G DeMarco
Obese and diabetic individuals are at increased risk for impairments in diastolic relaxation and heart failure with preserved ejection fraction. The impairments in diastolic relaxation are especially pronounced in obese and diabetic women and predict future cardiovascular disease (CVD) events in this population. Recent clinical data suggest sodium glucose transporter-2 (SGLT2) inhibition reduces CVD events in diabetic individuals, but the mechanisms of this CVD protection are unknown. To determine whether targeting SGLT2 improves diastolic relaxation, we utilized empagliflozin (EMPA) in female db/db mice...
January 13, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28078225/testicular-compartment-syndrome-an-overview-of-pathophysiology-etiology-evaluation-and-management
#7
REVIEW
Jason Gandhi, Gautam Dagur, Yefim R Sheynkin, Noel L Smith, Sardar Ali Khan
Testicular compartment syndrome (TCS) refers to the impairment of microcirculation in the testicle due to either increased venous resistance or extraluminal compression, which leads to hypoxia. TCS releases oxidants through hypoxia and ischemia/reperfusion injury (IRI). The pathophysiology, etiology, evaluation, and management of TCS are reviewed. Based on the properties of TCS, specific causes, e.g., varicocele, hydrocele, orchitis, cryptorchidism, and scrotal hernia, are suggested and categorized. The oxidant-induced stress from TCS may explain the correlations between these causes and infertility...
December 2016: Translational Andrology and Urology
https://www.readbyqxmd.com/read/28077838/low-grade-metabolically-induced-inflammation-mediators-interleukin-6-adiponectin-and-tnf-%C3%AE-serum-levels-in-obese-pregnant-patients-in-the-perinatal-period
#8
Malgorzata Zembala-Szczerba, Andrzej Jaworowski, Hubert Huras, Dorota Babczyk, Robert Jach
BACKGROUND Obesity is a major clinical problem. The number of obese pregnant women is rising rapidly. The consequences of obesity are significant and affect every aspect of perinatal care for both the mother and the developing fetus. Adipose tissue may be responsible for chronic subclinical inflammation in obesity, being a source of inflammatory mediators. The study was designed to evaluate the analysis of the serum concentration of inflammatory mediators, including interleukin-6 (IL-6), tumor necrosis factor alpha (TNF-α), and adiponectin, in obese pregnant women at full-term pregnancies...
January 12, 2017: Medical Science Monitor Basic Research
https://www.readbyqxmd.com/read/28074824/studying-diastology-with-speckle-tracking-echocardiography-the-essentials
#9
REVIEW
Arindam Choudhury, Rohan Magoon, Vishwas Malik, Poonam Malhotra Kapoor, S Ramakrishnan
Diastolic dysfunction is common in cardiac disease and an important finding independent of systolic function as it contributes to the signs and symptoms of heart failure. Tissue Doppler mitral early diastolic velocity (Ea) combined with peak transmitral early diastolic velocity (E) to obtain E/Ea ratio provides an estimate of the left ventricular (LV) filling pressure. However, E/Ea has a significant gray zone and less reliable in patients with preserved ejection fraction (>50%). Two-dimensional echocardiographic speckle tracking measure myocardial strain and strain rate (Sr) avoiding the Doppler-associated angulation errors and tethering artifacts...
January 2017: Annals of Cardiac Anaesthesia
https://www.readbyqxmd.com/read/28072580/in-vivo-real-time-cavitation-imaging-in-moving-organs
#10
B Arnal, J Baranger, C Demene, M Tanter, M Pernot
The stochastic nature of cavitation implies visualization of the cavitation cloud in real-time and in a discriminative manner for the safe use of focused ultrasound therapy. This visualization is sometimes possible with standard echography, but it strongly depends on the quality of the scanner, and is hindered by difficulty in discriminating from highly reflecting tissue signals in different organs. A specific approach would then permit clear validation of the cavitation position and activity. Detecting signals from a specific source with high sensitivity is a major problem in ultrasound imaging...
February 7, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28070749/an-automated-microemboli-detection-and-classification-system-using-backscatter-rf-signals-and-differential-evolution
#11
Karim Ferroudji, Nabil Benoudjit, Ayache Bouakaz
Embolic phenomena, whether air or particulate emboli, can induce immediate damages like heart attack or ischemic stroke. Embolus composition (gaseous or particulate matter) is vital in predicting clinically significant complications. Embolus detection using Doppler methods have shown their limits to differentiate solid and gaseous embolus. Radio-frequency (RF) ultrasound signals backscattered by the emboli contain additional information on the embolus in comparison to the traditionally used Doppler signals...
January 9, 2017: Australasian Physical & Engineering Sciences in Medicine
https://www.readbyqxmd.com/read/28069318/right-ventricular-hypertrophy-systolic-function-and-disease-severity-in-anderson-fabry-disease-an-echocardiographic-study
#12
Francesca Graziani, Marianna Laurito, Maurizio Pieroni, Faustino Pennestrì, Gaetano Antonio Lanza, Valentina Coluccia, Antonia Camporeale, Daniela Pedicino, Elena Verrecchia, Raffaele Manna, Filippo Crea
BACKGROUND: Right ventricular (RV) involvement has been described in Anderson-Fabry disease (AFD), especially in patients with established Fabry cardiomyopathy (FC). However, few and controversial data on RV systolic function are available, and there are no specific tissue Doppler studies. METHODS: Detailed echocardiographic examinations were performed in 45 patients with AFD. FC, defined as maximal left ventricular wall thickness ≥ 15 mm, was present in 12...
January 6, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28067629/standardized-echocardiographic-assessment-of-cardiac-function-in-normal-adult-zebrafish-and-heart-disease-models
#13
Louis W Wang, Inken G Huttner, Celine F Santiago, Scott H Kesteven, Ze-Yan Yu, Michael P Feneley, Diane Fatkin
The zebrafish (Danio rerio) is an increasingly popular model organism in cardiovascular research. Major insights into cardiac developmental processes have been gained by studies of embryonic zebrafish. However, the utility of zebrafish for modeling adult-onset heart disease has been limited by a lack of robust methods for in vivo evaluation of cardiac function. We established a physiological protocol for underwater zebrafish echocardiography using high frequency ultrasound, and evaluated its reliability in detecting altered cardiac function in two disease models...
January 1, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/28066866/left-ventricular-filling-pressure-by-septal-and-lateral-e-e-equally-predict-cardiovascular-events-in-the-general-population
#14
Joanna Nan Wang, Tor Biering-Sørensen, Peter Godsk Jørgensen, Jan Skov Jensen, Rasmus Mogelvang
PURPOSE: There exists no consensus on the site of E/e' measurement. This study aimed to evaluate the predictive value of septal and lateral E/e' along with the importance of their intra-individual difference. METHODS: In 1775 persons from the general population, peak early diastolic velocity (e') was obtained by color tissue Doppler at the septal and lateral mitral annular sites. The endpoint was combined of cardiovascular death or admission due to heart failure or acute myocardial infarction...
January 9, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28063644/are-transient-and-shear-wave-elastography-useful-tools-in-gaucher-disease
#15
Muriel Webb, Ari Zimran, Tama Dinur, Oren Shibolet, Stella Levit, David M Steinberg, Ophira Salomon
Up to now, there are no reliable biochemical markers or imaging that could reveal early tissue damage in Gaucher disease. Therefore, we addressed whether elastography technique can serve as a tool for evaluating patients with Gaucher disease. The study included 42 patients with Gaucher disease type I and 33 patients with liver cirrhosis as well as 22 healthy volunteers. Ultrasound and Doppler examination was performed on each participant prior to apply transient and 2D shear wave elastography. In Gaucher disease the median stiffness of the spleen as assessed by transient elastography (TE) and shear wave elastography (SWE) was 35KPa and 22KPa respectively in contrast to the median stiffness of healthy controls (16...
December 23, 2016: Blood Cells, Molecules & Diseases
https://www.readbyqxmd.com/read/28059556/effects-of-genital-response-measurement-device-and-stimulus-characteristics-on-sexual-concordance-in-women
#16
Katrina N Bouchard, Meredith L Chivers, Caroline F Pukall
Investigations of sexual concordance suggest that, on average, women exhibit a low, positive correlation between their subjective sexual arousal and genital response. However, this relationship appears to be stronger, on average, when genital response is measured via the external tissues of the vulva than within the vagina walls. Given the methodological variations, such as stimulus content and duration, in studies of vulvar and vaginal concordance, direct comparisons between individual studies are limited...
January 6, 2017: Journal of Sex Research
https://www.readbyqxmd.com/read/28057983/role-of-extracorporeal-shock-wave-therapy-in-management-of-peyronie-s-disease-a-preliminary-report
#17
Rajendra Kashinath Shimpi, Ravi Jineshkumar Jain
INTRODUCTION: Peyronie's Disease (PD) is a disease causing psycho social trauma to the patient. Multiple treatment options are available with variable results. Extra Corporeal Shock Wave Therapy (ESWT) is a new insight into the non invasive modality of management. It focuses on the mechanism of inducing angiogenesis in the penile cavernous tissue. MATERIALS AND METHODS: The aim of the study is to determine the role of ESWT in the management of PD. The objectives include demonstrating the improvement in mean International Index of Erectile Function Score (IIEFS), improvement in pain score by Visual Analogue Scale (VAS), change in cavernosal artery flow on colour penile Doppler, reduction in plaque size, and improvement in penile curvature degree after the therapy...
October 2016: Urology Annals
https://www.readbyqxmd.com/read/28047007/we-de-bra-03-construction-of-an-ultrasound-guidance-platform-for-image-guided-radiotherapy-with-the-intent-to-treat-transitional-cell-carcinoma
#18
J Sick, N Rancilio, C Fulkerson, P LaPetina, J Poulson, D Knapp, K Stantz
PURPOSE: Ultrasound (US) is a noninvasive, nonradiographic imaging technique with high spatial and temporal resolution that can be used for localizing soft-tissue structures and tumors in real-time during radiotherapy (inter- and intra-fraction). A detailed methodology integrating 3D-US within RT is presented. This method is easier to adopt into current treatment protocol than current US based systems and reduces user variability for image acquisition, thus eliminating transducer induced changes that limit CT planning system...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046050/postsystolic-shortening-is-associated-with-altered-right-ventricular-function-in-children-after-tetralogy-of-fallot-surgical-repair
#19
Radosław Pietrzak, Bożena Werner
: The aim of the study was to determine whether segmental interactions, as expressed by postsystolic shortening (PSS), affects RV mechanics and are connected with impaired systolic and diastolic function in rTOF children. PATIENTS AND METHODS: 55 rTOF adolescent (study group), and 34 healthy volunteers (control group) were examined using classical Doppler flow (Doppler), Tissue Doppler Imaging (TDI) and Speckle Tracking Echocardiography (STE). PSS was found to occur when time to peak (TTP) was longer than pulmonary valve closure time (PVCT)...
2017: PloS One
https://www.readbyqxmd.com/read/28045414/evaluation-of-left-atrial-mechanical-function-and-atrial-conduction-abnormalities-in-patients-with-isolated-bicuspid-aortic-valve
#20
Arif Arısoy, Kadriye Memiç, Selami Demirelli, Kayıhan Karaman, Fatih Altunkaş, Metin Karayakalı, Yusuf Karavelioğlu, Ataç Çelik
OBJECTIVE: Present study is an evaluation of left atrial (LA) mechanical and conduction function in patients with bicuspid aortic valve (BAV) without significant valve dysfunction, and an investigation of relationship between LA function and aortic elasticity. METHODS: Study population consisted of 34 isolated BAV patients (mean age: 34±13 years) and 29 healthy, age- and sex-matched volunteers (mean age: 30±10 years). LA volume was measured using biplane area-length method and LA active and passive emptying volume and fraction was calculated...
December 2016: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
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