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diaphragm ultrasound

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https://www.readbyqxmd.com/read/28202349/muscle-ultrasound-and-sarcopenia-in-older-individuals-a-clinical-perspective
#1
REVIEW
Andrea Ticinesi, Tiziana Meschi, Marco V Narici, Fulvio Lauretani, Marcello Maggio
INTRODUCTION: A precise quantitative measurement of skeletal muscle mass is fundamental for diagnosing sarcopenia in older individuals. The current techniques of assessment, including dual-energy x-ray absorptiometry (DXA), bioimpedance analysis (BIA), and magnetic resonance imaging (MRI) are either difficult to perform in everyday clinical practice or biased by concurrent clinical confounders. B-mode muscle ultrasound can be helpful in assessing muscle mass and architecture, and thus possibly useful for diagnosing or screening sarcopenia...
February 12, 2017: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/28177206/propofol-sedation-reduces-diaphragm-activity-in-spontaneously-breathing-patients-ultrasound-assessment
#2
Monica Rocco, Luigi Maggi, Giorgio Ranieri, Giovanni Ferrari, Cesare Gregoretti, Giorgio Conti, Roberto A DE Blasi
BACKGROUND: The diaphragm is the most important respiratory muscle in humans, and the close relationship between inspired volume and diaphragmatic movement in normal subjects has led to investigations into diaphragmatic activity using ultrasound, during spontaneous breathing and sedative drug infusion. METHODS: A total of 36 consecutive patients undergoing diagnostic procedures under deep propofol sedation were studied. Ultrasound measurements included the following: diaphragmatic thickening end-inspiration (TEI) and end-expiration (TEE)...
February 8, 2017: Minerva Anestesiologica
https://www.readbyqxmd.com/read/28126454/ultrasound-guided-retroclavicular-approach-infraclavicular-brachial-plexus-block-for-upper-extremity-emergency-procedures
#3
Josh Luftig, Daniel Mantuani, Andrew A Herring, Arun Nagdev
The America Society of Anesthesiology guidelines recommend multimodal analgesia that combines regional anesthetic techniques with pharmacotherapy to improve peri-procedural pain management and reduce opioid related complications. Commonly performed emergency procedures of the upper extremity such as fracture and dislocation reduction, wound debridement, and abscess incision and drainage are ideal candidates for ultrasound-guided (USG) regional anesthesia of the brachial plexus. However, adoption of regional anesthesia by emergency practitioners has been limited by concerns for potential complications and perceived technical difficulty...
January 15, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28048859/su-g-jep4-12-real-time-organ-motion-monitoring-using-ultrasound-and-kv-fluoroscopy-during-lung-sbrt-delivery
#4
E Omari, A Tai, D Cooper, M Lachaine, X Li
PURPOSE: Real-time ultrasound monitoring during SBRT is advantageous in understanding and identifying motion irregularities which may cause geometric misses. In this work, we propose to utilize real-time ultrasound to track the diaphragm in conjunction with periodical kV fluoroscopy to monitor motion of tumor or landmarks during SBRT delivery. METHODS: Transabdominal Ultrasound (TAUS) b-mode images were collected from 10 healthy volunteers using the Clarity Autoscan System (Elekta)...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/27976400/tracking-diaphragm-movement-by-using-ultrasound-to-assess-its-strength
#5
Anne M Connolly, Bettina Mittendorfer
No abstract text is available yet for this article.
December 15, 2016: Journal of Physiology
https://www.readbyqxmd.com/read/27941477/diaphragm-sparing-nerve-blocks-for-shoulder-surgery
#6
De Q H Tran, Maria Francisca Elgueta, Julian Aliste, Roderick J Finlayson
Shoulder surgery can result in significant postoperative pain. Interscalene brachial plexus blocks (ISBs) constitute the current criterion standard for analgesia but may be contraindicated in patients with pulmonary pathology due to the inherent risk of phrenic nerve block and symptomatic hemidiaphragmatic paralysis. Although ultrasound-guided ISB with small volumes (5 mL), dilute local anesthetic (LA) concentrations, and LA injection 4 mm lateral to the brachial plexus have been shown to reduce the risk of phrenic nerve block, no single intervention can decrease its incidence below 20%...
January 2017: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/27929389/diaphragm-dysfunction-diagnostic-approaches-and-management-strategies
#7
REVIEW
Bruno-Pierre Dubé, Martin Dres
The diaphragm is the main inspiratory muscle, and its dysfunction can lead to significant adverse clinical consequences. The aim of this review is to provide clinicians with an overview of the main causes of uni- and bi-lateral diaphragm dysfunction, explore the clinical and physiological consequences of the disease on lung function, exercise physiology and sleep and review the available diagnostic tools used in the evaluation of diaphragm function. A particular emphasis is placed on the clinical significance of diaphragm weakness in the intensive care unit setting and the use of ultrasound to evaluate diaphragmatic action...
December 5, 2016: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/27855487/transfer-of-therapeutic-genes-into-fetal-rhesus-monkeys-using-recombinant-adeno-associated-type-i-viral-vectors
#8
Thomas J Conlon, Cathryn S Mah, Christina A Pacak, Mary B Rucker Henninger, Kirsten E Erger, Marda L Jorgensen, C Chang I Lee, Alice F Tarantal, Barry J Byrne
Neuromuscular disorders such as Pompe disease (glycogen storage disease, type II), result in early and potentially irreversible cellular damage with a very limited opportunity for intervention in the newborn period. Pompe disease is due to deficiency in acid α-glucosidase (GAA) leading to lysosomal accumulation of glycogen in all cell types, abnormal myofibrillogenesis, respiratory insufficiency, neurological deficits, and reduced contractile function in striated muscle. Previous studies have shown that fetal delivery of recombinant adeno-associated virus (rAAV) encoding GAA to the peritoneal cavity of Gaa(-/-) mice resulted in high-level transduction of the diaphragm...
December 2016: Human Gene Therapy. Clinical Development
https://www.readbyqxmd.com/read/27803970/the-maximal-expiratory-to-inspiratory-pressure-ratio-and-supine-vital-capacity-as-screening-tests-for-diaphragm-dysfunction
#9
Patrick Koo, Dennis O Oyieng'o, Eric J Gartman, Jigme M Sethi, Charles B Eaton, F Dennis McCool
PURPOSE: The change in vital capacity from the seated to supine position (∆VC-supine) is used to screen for diaphragm dysfunction (DD), but some individuals are unable to tolerate the supine position. Since expiratory muscle function is often preserved in patients with isolated DD and inspiratory strength is reduced, the purpose of this study was to examine if the ratio of maximal expiratory pressure to maximal inspiratory pressure (MEP/MIP) may provide an alternative to ∆VC-supine when screening patients for DD...
November 1, 2016: Lung
https://www.readbyqxmd.com/read/27771601/r-gas-under-diaphragm
#10
Maddibande Ramachar Sreevathsa, Khyati Melanta
INTRODUCTION: The most common cause of gas under diaphragm is hollow viscous perforation. In 10% of cases it can be due to rare causes, both abdominal and extra-abdominal, one of them being intra abdominal infection by gas forming organisms. PRESENTATION OF THE CASE: A 51 year old male patient, a poorly controlled diabetic, presented with a second episode of severe pain abdomen and abdominal distention, with lower abdominal tenderness. Plain Xray of the abdomen in erect posture showed gas under the right dome of diaphragm and ultrasound abdomen confirmed gross pneumoperitoneum...
October 14, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27766377/-diaphragm-dysfunction-facts-for-clinicians
#11
REVIEW
C S Bruells, G Marx
Diaphragm function is crucial for patient outcome in the ICU setting and during the treatment period. The occurrence of an insufficiency of the respiratory pump, which is predominantly formed by the diaphragm, may result in intubation after failure of noninvasive ventilation. Especially patients suffering from chronic obstructive pulmonary disease are in danger of hypercapnic respiratory failure. Changes in biomechanical properties and fiber texture of the diaphragm are further cofactors directly leading to a need for intubation and mechanical ventilation...
October 20, 2016: Medizinische Klinik, Intensivmedizin und Notfallmedizin
https://www.readbyqxmd.com/read/27766022/flooded-lung-generates-a-suitable-acoustic-pathway-for-transthoracic-application-of-high-intensity-focused-ultrasound-in-liver
#12
Thomas Günther Lesser, Carsten Boltze, Harald Schubert, Frank Wolfram
Background: In recent years, high intensity focused ultrasound (HIFU) has gained increasing clinical interest as a non-invasive method for local therapy of liver malignancies. HIFU treatment of tumours and metastases in the liver dome is limited due to the adjacent ultrasound blocking lung. One-lung flooding (OLF) enables complete sonography of lung and adjoining organs including liver. HIFU liver ablation passing through the flooded lung could enable a direct intercostal beam path and thus improve dose deposition in liver...
2016: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/27763778/correlation-of-prenatal-diagnosis-and-pathology-findings-following-dilation-and-evacuation-for-fetal-anomalies
#13
Carolin A Boecking, Eleanor A Drey, Jennifer L Kerns, Walter E Finkbeiner
CONTEXT: -Despite increased use of dilation and evacuation in the setting of fetuses with developmental anomalies, the pathology examination of fragmented specimens obtained by this technique has been understudied. OBJECTIVES: -To correlate pathologic findings in second-trimester fetal dilation and evacuation specimens with prenatal diagnoses established through ultrasound and/or chromosome studies to determine the value of pathology examination for supplementing or correcting clinical diagnoses...
February 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/27761192/chaos-prenatal-imaging-findings-with-post-mortem-contrast-radiographic-correlation
#14
Kanika Gupta, Bhuvaneswari Venkatesan, Kiruba Shankar Manoharan, Vaithianathan Rajalakshmi, Maya Menon
Congenital high airway obstruction syndrome is a rare fetal anomaly with characteristic constellation of prenatal findings on ultrasound and MRI. The typical triad of imaging features are enlarged and echogenic lungs, flattening or inversion of diaphragm and fetal hydrops. Early prenatal recognition of congenital high airway obstruction syndrome by ultrasound and/or MRI is mandatory for the appropriate perinatal management. We report a case of a male fetus with typical imaging findings of congenital high airway obstruction syndrome on ultrasound and MRI at 19 weeks of gestation...
August 2016: Journal of Radiology Case Reports
https://www.readbyqxmd.com/read/27751623/phrenic-nerve-stimulation-is-more-sensitive-than-ultrasound-measurement-of-diaphragm-thickness-in-assessing-early-als-progression
#15
Susana Pinto, Pedro Alves, Michael Swash, Mamede de Carvalho
AIMS OF THE STUDY: To compare the assessment of respiratory decline with conventional tests, measurement of diaphragm compound muscle action potential (CMAP) to phrenic nerve stimulation and diaphragm thickness to ultrasound (US) investigation in amyotrophic lateral sclerosis (ALS) patients followed for a short period of time. PATIENTS AND METHODS: We evaluated in 40 consecutive ALS patients, the clinical functional scale (ALSFRS-R), forced vital capacity (FVC), maximal voluntary ventilation (MVV), maximal inspiratory (MIP) and expiratory (MEP) pressures, sniff nasal inspiratory pressure (SNIP), Diaphragm-CMAP (latency and amplitude) and diaphragm US (maximal and minimal diaphragm thickness during full inspiration and expiration, respectively)...
October 14, 2016: Neurophysiologie Clinique, Clinical Neurophysiology
https://www.readbyqxmd.com/read/27711214/progressive-dystrophic-pathology-in-diaphragm-and-impairment-of-cardiac-function-in-fkrp-p448l-mutant-mice
#16
Anthony Blaeser, Hiroyuki Awano, Bo Wu, Qi-Long Lu
Mutations in the gene for fukutin-related protein represent a subset of muscular dystrophies known as dystroglycanopathies characterized by loss of functionally-glycosylated-alpha-dystroglycan and a wide range of dystrophic phenotypes. Mice generated by our lab containing the P448L mutation in the fukutin-related protein gene demonstrate the dystrophic phenotype similar to that of LGMD2I. Here we examined the morphology of the heart and diaphragm, focusing on pathology of diaphragm and cardiac function of the mutant mice for up to 12 months...
2016: PloS One
https://www.readbyqxmd.com/read/27701744/utility-of-diaphragm-ultrasound-in-myopathy
#17
Cullen M O'Gorman, Travis G O'brien, Andrea J Boon
INTRODUCTION: Ultrasound (US) evaluation of diaphragm thickness and contractility is an effective tool in neurogenic diaphragm dysfunction. There are limited data about the value of this technique in patients with myopathy. METHODS: We performed a retrospective chart review of cases with electromyography (EMG) -confirmed myopathy and real-time US evaluation of the diaphragm. Diaphragm thickness and thickening ratio (maximal inspiration/expiration) were measured...
March 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/27682813/diaphragmatic-dysfunction-is-characterized-by-increased-duration-of-mechanical-ventilation-in-subjects-with-prolonged-weaning
#18
Zhihua Lu, Qiuping Xu, Yuehua Yuan, Ge Zhang, Feng Guo, Huiqing Ge
BACKGROUND: Diaphragmatic dysfunction is often underdiagnosed and is among the risk factors for failed weaning. The purpose of this study was to determine the prevalence of diaphragmatic dysfunction diagnosed by B-mode ultrasonography and to determine whether prolonged weaning subjects with diaphragmatic dysfunction have increased duration of mechanical ventilation compared with those without diaphragmatic dysfunction. METHODS: This was a prospective observational study in mechanically ventilated subjects who failed ≥3 spontaneous breathing trials or required >7 d of weaning after the first spontaneous breathing trial...
October 2016: Respiratory Care
https://www.readbyqxmd.com/read/27673044/poster-285-ultrasound-guided-diaphragmatic-emg-in-patient-with-respiratory-decline-and-pre-existing-contralateral-diaphragm-atrophy-a-case-report
#19
Benjamin J Bonte, Jason Freeman, Gary Fang, Harald Sauthoff
No abstract text is available yet for this article.
September 2016: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/27669329/ciliary-body-iris-appositioning-producing-mechanical-pupillary-defects-in-carotid-cavernous-sinus-fistula-an-overlooked-pathophysiologic-mechanism
#20
Margarita G Todorova, Cameron F Parsa
BACKGROUND: Variable pupillary responses have been described with carotid-cavernous sinus fistulas. These often are associated with a decrease in visual acuity and attributed to retinal ischemia. We propose a novel pathophysiologic mechanism for changes in pupillary reactivity involving anatomic changes secondary to choroidal effusion. METHODS: To demonstrate proof-of-concept, we investigated 2 consecutive patients with carotid-cavernous sinus fistulas and pupillary disturbances using repeated refractions and anterior segment ultrasound biomicroscopy...
March 2017: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
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