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Ultrasound and pulmonary

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https://www.readbyqxmd.com/read/28530128/in-vivo-endocrine-secretion-of-prostacyclin-following-expression-of-a-cox-1-pgis-fusion-protein-in-the-salivary-glands-of-rats-via-non-viral-gene-therapy
#1
Zhimin Wang, Raymond L Benza, Lee Zourelias, Angela Sanguino, Ramaz Geguchadze, Kelly J Shields, Changgong Wu, Kristin B Highland, Michael J Passineau
Pulmonary arterial hypertension is a progressive disease that culminates in right heart failure and death. Prostacyclin(PGI2) and its derivatives are effective treatments for PAH when administered as continuous parenteral infusions. This treatment paradigm requires medical sophistication, and patients are at risk for complications from an indewelling catheter; drug interruptions may result in rebound pulmonary hypertension and death. We hypothesized that the salivary gland can be repurposed into an endogenous production site for circulating PGI2 through the expression of a fusion protein embodying cyclooxygenase-1(Cox1) and prostacyclin synthase(PGIS) domains...
May 20, 2017: Human Gene Therapy
https://www.readbyqxmd.com/read/28524032/-preoperative-risk-factors-analysis-of-pulmonary-hypertension-crisis-during-perioperative-period-for-caesarean-section-of-woman-with-severe-pulmonary-hypertension
#2
Chunlei Zhang, Yaguang Liu, Enming Qing, Jun Ma
OBJECTIVE: To analyze preoperative risk factors of perioperative pulmonary hypertension crisis (PHC) for pregnant woman with severe pulmonary artery hypertension (PAH), and approach its clinical value. METHODS: A retrospective analysis was conducted. The clinical data from 152 pregnant women with severe PAH underwent cesarean delivery admitted to Beijing Anzhen Hospital from January 1st 2008 to December 31st 2016 was collected. The patients were divided into two groups according to with perioperative PHC or not...
May 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28522112/diffuse-parenchymal-lung-disease-on-chest-radiographs-and-ct
#3
Theodore J Dubinsky, Hardik Shah, Rachelle Sonneborn, Daniel S Hippe
BACKGROUND: We prospectively identified B-lines in patients undergoing ultrasound examinations following liver transplants who also had a chest x-ray (CXR) and/or chest CT scan on the same day to determine if an association between the presence of B-lines s from the thorax on ultrasound images correlates with the presence of pulmonary abnormalities on chest radiographs. MATERIALS AND METHODS: Following IRB approval, patients undergoing routine postoperative liver transplant ultrasound examinations and a CXR and/or CT scan on the same day between 1/1/2015 through 7/1/2016 were prospectively identified...
May 15, 2017: Chest
https://www.readbyqxmd.com/read/28517999/venous-gas-emboli-and-ambulation-at-4-3-psia
#4
Johnny Conkin, Neal W Pollock, Michael J Natoli, Stefanie D Martina, James H Wessel, Michael L Gernhardt
INTRODUCTION: Ambulation during extravehicular activity on Mars may increase the risk of decompression sickness through enhanced bubble formation in the lower body. HYPOTHESES: walking effort (ambulation) before an exercise-enhanced denitrogenation (prebreathe) protocol at 14.7 psia does not increase the incidence of venous gas emboli (VGE) at 4.3 psia, but does increase incidence if performed after tissues become supersaturated with nitrogen at 4.3 psia. METHODS: VGE results from 45 control subjects who performed exercise prebreathe without ambulation before or during a 4-h exposure to 4...
April 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28511860/first-trimester-fetal-echocardiography-identification-of-cardiac-structures-for-screening-from-6-to-13%C3%A2-weeks-gestational-age
#5
Darren Hutchinson, Angela McBrien, Lisa Howley, Yuka Yamamoto, Priya Sekar, Tarek Motan, Venu Jain, Winnie Savard, Lisa K Hornberger
BACKGROUND: Early fetal echocardiography (FE), performed at 12 to 16 weeks' gestational age (GA), can be used to screen for fetal heart disease akin to that routinely performed in the second trimester. The efficacy of FE at earlier GAs has not been as well explored, particularly with recent advances in ultrasound technology. The aim of this study was to evaluate the efficacy of early FE in assessing fetal heart structure, and the added benefit of color Doppler (CD), from as early as 6 weeks through to 13(+6) weeks' GA...
May 13, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28502520/-exploring-the-diaphragm-ultrasound-is-essential
#6
REVIEW
P Richard
The diaphragm is the muscle most implicated in breathing. Its morphological exploration usually depends on pulmonary radiography, fluoroscopy, CT-scanning and MRI. Its function is evaluated by the classical respiratory functional tests, the measurement of maximum inspiratory and expiratory pressures, the transdiaphragmatic pressure and even an electromyogram. Ultrasound is a technique still insufficiently used in respiratory medicine. It offers, however, many advantages: it is easy to implement, there is no irradiation, it is usable at the bedside, particularly when the patient is immobile or in intensive care...
May 12, 2017: Revue des Maladies Respiratoires
https://www.readbyqxmd.com/read/28498107/ultrasound-assisted-thrombolysis-of-an-occluded-transjugular-portosystemic-shunt
#7
Nicholas Hilliard, Teik Choon See, Nadeem Shaida
Transjugular intrahepatic portosystemic shunt (TIPS) insertion is commonly performed for refractory ascites or variceal bleeding. However, TIPS dysfunction can be seen in both early and late settings, with shunt thrombosis a particular problem. Treatment of shunt dysfunction commonly involves angioplasty and re-lining, with or without embolectomy, mechanical thrombectomy, or thrombolysis. Ultrasound-assisted thrombolysis has been shown to be successful for treatment of pulmonary embolism, deep vein thrombosis, and peripheral arterial thromboembolism, but has not been described before for TIPS occlusion...
May 12, 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28491449/metastatic-pulmonary-carcinomas-in-cats-feline-lung-digit-syndrome-further-variations-on-a-theme
#8
Elizabeth Thrift, Chris Greenwell, Audra-Lynne Turner, Andrea M Harvey, Donna Maher, Richard Malik
CASE SERIES SUMMARY: The aim of this retrospective case series was to describe seven cases where cats with primary lung tumours were presented because of metastases to extra-pulmonary sites ('feline lung-digit syndrome'). Specifically, we wanted to emphasise less typical case descriptions where tumour emboli resulted in lesions developing in the musculature (including the muscles of the head), skin or distal aorta. RELEVANCE AND NOVEL INFORMATION: The cases are presented to increase clinical awareness of this entity in feline practice, especially when characteristic combinations of clinical signs are present...
January 2017: JFMS Open Rep
https://www.readbyqxmd.com/read/28488020/-unusual-complication-following-placement-of-an-epidural-catheter
#9
M Schlipköter, T Grieser, H Forst
We report an unusual complication following placement of a thoracic epidural catheter in a patient that had undergone surgery for pulmonary metastases of a malignant melanoma. The intra- and postoperative course was initially without complications. At 2 days, there was a small, conspicuous swelling above the site of epidural puncture, which was neither reddened nor painful. No neurological deficits were observed, and the patient explained that he had been aware of the swelling for more than 6 months; thus, the epidural catheter was not deemed to be responsible...
May 9, 2017: Der Anaesthesist
https://www.readbyqxmd.com/read/28485200/assessment-of-early-treatment-response-by-rapid-cardiothoracic-ultrasound-in-acute-heart-failure-cardiac-filling-pressures-pulmonary-congestion-and-mortality
#10
Jonas Öhman, Veli-Pekka Harjola, Pasi Karjalainen, Johan Lassus
BACKGROUND: It is unclear how to optimally monitor acute heart failure (AHF) patients. We evaluated the timely interplay of cardiac filling pressures, brain natriuretic peptides (BNPs), lung ultrasound (LUS) and symptoms during AHF treatment. METHODS: We enrolled 60 patients who had been hospitalised for AHF. Patients were examined with a rapid cardiothoracic ultrasound (CaTUS) protocol, combining LUS and focused echocardiographic evaluation of cardiac filling pressures (i...
May 1, 2017: European Heart Journal. Acute Cardiovascular Care
https://www.readbyqxmd.com/read/28482387/-the-limitation-of-transthoracic-echocardiography-in-diagnosing-partial-anomalous-pulmonary-venous-drainage
#11
J Zhang, Y Gao, J L Yang, W D Chen, G Y Huang, X J Ma
Objective: To improve the diagnostic accuracy of transthoracic echocardiography (TTE) by analyzing its limitations in diagnosing partial anomalous pulmonary venous drainage (PAPVD). Method: This was a retrospective analysis of PAPVD patients seen at the Children's Hospital of Fudan University from October 1 2006 to October 1 2016. The echocardiographic data were compared to findings on multi-slice spiral CT (MSCT), cardiac catheterization or surgery. The echocardiography machines used were Philip IE33, GE Vivid 7 and Vivid i with frequency ranging from 5...
May 4, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/28480751/ct-pulmonary-angiography-in-young-women
#12
Paul D Stein, Fadi Matta, Kate E Hughes, Mary J Hughes
The purpose was to determine whether young women in the emergency department who received computed tomographic (CT) pulmonary angiograms were evaluated to receive lower dose imaging or no imaging, recognizing that the risks of radiation are particularly high in young women. This was a retrospective cohort investigation of women aged 18 to 29 years seen for suspected acute pulmonary embolism in emergency departments of 5 regional hospitals from May 1, 2015 to April 30, 2016. Computed tomographic (CT) pulmonary angiograms were obtained in 379 young women...
January 1, 2017: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/28473092/acr-appropriateness-criteria-%C3%A2-suspected-pulmonary-hypertension
#13
Arlene Sirajuddin, Edwin F Donnelly, Traves P Crabtree, Travis S Henry, Mark D Iannettoni, Geoffrey B Johnson, Ella A Kazerooni, Fabien Maldonado, Kathryn M Olsen, Carol C Wu, Tan-Lucien Mohammed, Jeffrey P Kanne
Pulmonary hypertension may be idiopathic or related to a large variety of diseases. Various imaging examinations that may be helpful in diagnosing and determining the etiology of pulmonary hypertension are discussed. Imaging examinations that may aid in the diagnosis of pulmonary hypertension include chest radiography, ultrasound echocardiography, ventilation/perfusion scans, CT, MRI, right heart catheterization, pulmonary angiography, and fluorine-18-2-fluoro-2-deoxy-d-glucose PET/CT. The American College of Radiology Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed annually by a multidisciplinary expert panel...
May 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/28473076/acr-appropriateness-criteria-%C3%A2-acute-chest-pain-suspected-pulmonary-embolism
#14
Jacobo Kirsch, Richard K J Brown, Travis S Henry, Cylen Javidan-Nejad, Clinton Jokerst, Paul R Julsrud, Jeffrey P Kanne, Christopher M Kramer, Jonathon A Leipsic, Kalpesh K Panchal, James G Ravenel, Amar B Shah, Tan-Lucien Mohammed, Pamela K Woodard, Suhny Abbara
Pulmonary embolism (PE) remains a common and important clinical condition that cannot be accurately diagnosed on the basis of signs, symptoms, and history alone. The diagnosis of PE has been facilitated by technical advancements and multidetector CT pulmonary angiography, which is the major diagnostic modality currently used. Ventilation and perfusion scans remain largely accurate and useful in certain settings. Lower-extremity ultrasound can substitute by demonstrating deep vein thrombosis; however, if negative, further studies to exclude PE are indicated...
May 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/28472392/lung-ultrasound-as-a-translational-approach-for-non-invasive-assessment-of-heart-failure-with-reduced-or-preserved-ejection-fraction-in-mice
#15
María Villalba-Orero, Marina M López-Olañeta, Esther González-López, Laura Padrón-Barthe, Jesús M Gómez-Salinero, Jaime García-Prieto, Timothy Wai, Pablo García-Pavía, Borja Ibáñez, Luis J Jiménez-Borreguero, Enrique Lara-Pezzi
Methods and results: ─ We used LUS to study HF in a mouse model of systolic dysfunction, dilated cardiomyopathy, and in a mouse model of diastolic dysfunction, diabetic cardiomyopathy. LUS proved to be a reliable and reproducible tool to detect pulmonary congestion in mice. The combination of LUS and echocardiography allowed discriminating those mice that develop HF from those that do not, even in the presence of evident cardiac dysfunction. The study showed that LUS can be used to identify the onset of HF decompensation and to evaluate the efficacy of therapies for this syndrome...
May 4, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28471148/clinical-imaging-in-patients-experiencing-chest-pain
#16
Angelo Silverio, Rodolfo Citro
Non-invasive imaging modalities integrate the clinical and laboratory diagnostic work-up of patients admitted in emergency department for chest pain. Transthoracic echocardiography is the first-line imaging tool because it is rapidly and widely available, bedside feasible and cost-effective. Even when a comprensive exam is not feasible, a fast focused ultrasound exam should be performed. Contrast enhanced computed tomography is an easily accessible tool with specific application in patients suspected for pulmonary embolism (PE) and acute coronary syndrome (ACS) according to the pre-test risk assessment and to the clinical status...
May 3, 2017: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/28471089/transcatheter-closure-of-hemodynamic-significant-patent-ductus-arteriosus-in-32-premature-infants-by-amplatzer-ductal-occluder-additional-size-adoiias
#17
Patrice Morville, Ahmad Akhavi
OBJECTIVES: The advent of Amplatzer Duct Occluder II additional Size (ADOIIAS) provided the potential to close hemodynamic significant patent ductus arteriosus (HSPDA) and to analyze the feasibility, safety and efficacy of the device. BACKGROUND: Treatment of a patent ductus arteriosus (PDA) in very premature neonates is still a dilemma for the neonatalogist who has to consider its significance and has to choose among different treatment options. Because surgical ligation and medical therapy both have their drawbacks, interventional catheterization might provide an alternative means of closing HSPDA...
May 4, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28469722/endobronchial-ultrasound-plus-fluoroscopy-guided-biopsy-compared-to-fluoroscopy-guided-transbronchial-biopsy-for-obtaining-samples-of-peripheral-pulmonary-lesions-a-systematic-review-and-meta-analysis
#18
Jian Ye, Ruifeng Zhang, Shenglin Ma, Limin Wang, Weizhong Jin
BACKGROUND: We report a meta-analysis of recent studies comparing the diagnostic yields of endobronchial ultrasonography plus fluoroscopically-guided transbronchial biopsy (EBUS + TBB) with that of conventional fluoroscopically-guided TBB for peripheral pulmonary lesions (PPLs). METHODS: We searched Medline, the Cochrane Library, PubMed, and Google Scholar through 31 March 2013 using the keywords: lung neoplasm, pulmonary lesions, diagnosis, endobronchial ultrasound, fluoroscopy, and fluoroscopic...
April 2017: Annals of Thoracic Medicine
https://www.readbyqxmd.com/read/28469313/evaluation-of-cytology-in-lung-cancer-diagnosis-based-on-ebus-tbna
#19
Zhengwei Dong, Hui Li, Hongbin Jiang, Chunyan Wu
AIMS: Endobronchial ultrasound (EBUS) is a relatively new modality that can be used to guide transbronchial needle aspiration (TBNA) of mediastinal lymph nodes. At present, researches on the sensitivity and specificity of cytopathology based on the EBUS-TBNA are deficient; therefore, we want to evaluate the value of cytology based on the EBUS-TBNA in this article. MATERIALS AND METHODS: We reviewed the 379 cases that underwent the EBUS-TBNA in Shanghai Pulmonary Hospital from April 2010 to May 2011...
April 2017: Journal of Cytology
https://www.readbyqxmd.com/read/28467885/diving-and-pulmonary-physiology-surfactant-binding-protein-lung-fluid-and-cardiopulmonary-test-changes-in-professional-divers
#20
Zora Susilovic-Grabovac, Cristina Banfi, Denise Brusoni, Massimo Mapelli, Stefania Ghilardi, Ante Obad, Darija Bakovic-Kramaric, Zeljko Dujic, Piergiuseppe Agostoni
Alteration of breathing pattern ranging from an increase of respiratory rate to overt hyperventilation during and after SCUBA diving is frequently reported and is associated with intrathoracic fluid overload. This study was undertaken to assess breathing efficiency after diving and the association with damage of alveolar cells. Ventilation efficiency (VE/VCO2) during maximal cardiopulmonary exercise test (CPET) before and 2h after a standard protocol dive has been analyzed in twelve professional males divers (39...
April 30, 2017: Respiratory Physiology & Neurobiology
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