keyword
MENU ▼
Read by QxMD icon Read
search

lung valves

keyword
https://www.readbyqxmd.com/read/28740685/minimally-invasive-aortic-valve-replacement-in-high-risk-patient-groups
#1
REVIEW
Daniel Fudulu, Harriet Lewis, Umberto Benedetto, Massimo Caputo, Gianni Angelini, Hunaid A Vohra
Minimally invasive aortic valve replacement (AVR) aims to preserve the sternal integrity and improve postoperative outcomes. In low risk patients, this technique can be achieved with comparable mortality to the conventional approach and there is evidence of possible reduction in intensive care and hospital length of stay, transfusion requirement, renal dysfunction, improved respiratory function and increased patient satisfaction. In this review, we aim to asses if these benefits can be transferred to the high risk patient groups...
June 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28734021/effect-of-fixed-value-positive-end-expiratory-pressure-valves-on-canine-thoracic-volume-and-atelectasis
#2
A Allison, X Huizing, C Jolliffe, I Schaafsma
OBJECTIVES: The objective of this study was to investigate whether a fixed 10 cm H2 O positive end-expiratory pressure valve would increase the aeration of, and reduce atelectasis formation in, the lungs after induction of anaesthesia in dogs undergoing thoracic CT. MATERIALS AND METHODS: 28 dogs were paired based on breed, bodyweight and body condition score and then randomly allocated to either Group Z (0 cm H2 O) or Group P (10 cm H2 O positive end-expiratory pressure valve) immediately after the induction of anaesthesia...
July 22, 2017: Journal of Small Animal Practice
https://www.readbyqxmd.com/read/28712578/outcomes-readmissions-and-costs-in-transfemoral-and-alterative-access-transcatheter-aortic-valve-replacement-in-the-us-medicare-population
#3
Fenton H McCarthy, Danielle D Spragan, Danielle Savino, Taylor Dibble, Ashley C Hoedt, Katherine M McDermott, Joseph E Bavaria, Howard C Herrmann, Saif Anwaruddin, Jay Giri, Wilson Y Szeto, Peter W Groeneveld, Nimesh D Desai
OBJECTIVE: To comprehensively evaluate and compare utilization, outcomes, and especially costs of transfemoral (TF), transapical (TA), and transaortic (TAO) transcatheter aortic valve replacement (TAVR). METHODS: All Medicare fee-for-service patients undergoing TF (n = 4065), TA (n = 691), or TAO (n = 274) TAVR between January 1, 2011, and November 30, 2012, were identified using Health Care Procedure Classification Codes present on Medicare claims. Hospital charges from Medicare claims were converted to costs using hospital-specific Medicare cost-to-charge ratios...
June 16, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28693056/-the-clinical-characteristics-of-pulmonary-benign-metastasizing-leiomyoma
#4
H P Wang, J H Shi, L Zhang
Objective: Pulmonary benign metastasizing leiomyoma (PBML) is a rare entity that leiomyoma of uterus metastasized to the lung. The clinical characteristics of this rare disease were analyzed in this article. Methods: The detailed clinical records of 7 patients diagnosed as PBML at Peking Union Medical College Hospital between January 2001 and June 2015 were reviewed. Results: All patients were women with median age of 44 years (range 28-62). Symptoms included dyspnea (2/7), chest pain (1/7), cyanosis (1/7), cough (1/7) and bloody sputum (1/7), while 4/7 cases were asymptomatic...
July 1, 2017: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/28673705/reoperative-aortic-root-replacement-outcome-in-a-contemporary-series
#5
Jiro Esaki, Bradley G Leshnower, Jose N Binongo, Yi Lasanajak, LaRonica McPherson, Vinod H Thourani, Edward P Chen
OBJECTIVES: Reoperative aortic root replacement is a challenging procedure associated with significant mortality and morbidity. The purpose of this study was to investigate the outcomes of reoperative aortic root replacement when performed in a number of complex clinical settings and to identify risk factors for operative mortality and long-term survival. METHODS: From 2006 to 2015, 280 consecutive patients at an academic center underwent reoperative aortic root replacement after a variety of previous aortic or cardiac operations...
June 3, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28673366/significance-of-lung-anomalies-in-fetuses-affected-by-tetralogy-of-fallot-with-absent-pulmonary-valve-syndrome
#6
Estelle Tenisch, Marie-Josée Raboisson, Françoise Rypens, Julie Déry, Andrée Grignon, Chantale Lapierre
OBJECTIVES: Tetralogy of Fallot with absent pulmonary valve syndrome is a rare form of tetralogy of Fallot with dilatation of large pulmonary arteries. Prognosis is related to the severity of the cardiac malformation and to bronchial tree compression by dilated pulmonary arteries. This study analyses the prenatal echographic lung appearance in fetuses with tetralogy of Fallot with absent pulmonary valve and discusses its significance. METHODS: We carried out a retrospective review of fetal and postnatal files of nine fetuses diagnosed with tetralogy of Fallot with absent pulmonary valve syndrome in our institution...
July 4, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28670327/asthma-pressurised-metered-dose-inhaler-performance-propellant-effect-studies-in-delivery-systems
#7
William F S Sellers
BACKGROUND: Current pressurised metered dose asthma inhaler (pMDI) propellants are not inert pharmacologically as were previous chlorofluorocarbons, have smooth muscle relaxant' partial pressure effects in the lungs and inhaled hydrofluoroalkane 134a (norflurane) has anaesthetic effects. Volumes of propellant gas per actuation have never been measured. METHODS: In-vitro studies measured gas volumes produced by pMDIs on air oxygen (O2) levels in valved holding chambers (VHC) and the falls in O2% following actuation into lung ventilator delivery devices...
2017: Allergy, Asthma, and Clinical Immunology
https://www.readbyqxmd.com/read/28657948/impact-of-the-hospital-readmission-reduction-program-on-surgical-readmissions-among-medicare-beneficiaries
#8
Andrew M Ibrahim, Hari Nathan, Jyothi R Thumma, Justin B Dimick
OBJECTIVE: To understand the impact of the Hospital Readmission Reduction Program on both future targeted and nontargeted surgical procedures. BACKGROUND: The Hospital Readmission Reduction Program, established under the Affordable Care Act in March of 2010, placed financial penalties on hospitals with higher than expected rates of readmission beginning in 2012 for targeted medical conditions. Multiple studies have suggested a "spill-over" effect into other conditions, but the extent of that effect for specific surgical procedures is unknown...
June 27, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28652911/rare-mycotic-aneurysms-of-internal-jugular-vein-and-innominate-vein-secondary-to-untreated-parapharyngeal-abscess-a-case-report
#9
Abdus Salam, Inamullah Khan, Amyn Sonawalla, Saulat Fatimi
We report a 31 year old woman presented with three months history of large untreated parapharyngeal abscess and bleeding from the mouth. On evaluation chest CT scan identified the abscess extending down to the superior mediastinum and multiple small lung abscesses. Echocardiography showed tricuspid valve insufficiency. Patient was brought to the operating room (OR) and intra-operatively it was found that she had multiple large mycotic pseudoaneurysms of the internal jugular vein and right brachiocephalic veins...
July 2017: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/28648775/systolic-anterior-motion-of-the-mitral-valve-with-left-ventricular-outflow-tract-obstruction-a-rare-cause-of-hypotension-after-lung-transplantation
#10
Thomas Hertel, Jennifer M Banayan, Mark A Chaney, Vera von Dossow, Richa Dhawan
No abstract text is available yet for this article.
February 12, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28637047/pleural-adhesion-assessment-as-a-predictor-for-pneumothorax-after-endobronchial-valve-treatment
#11
Wouter H van Geffen, Karin Klooster, Jorine E Hartman, Nick H T Ten Hacken, Huib A M Kerstjens, Rienhart F E Wolf, Dirk-Jan Slebos
BACKGROUND: Pneumothorax after bronchoscopic lung volume reduction using one-way endobronchial valves (EBVs) in patients with advanced emphysema occurs in approximately 20% of patients. It is not well known which factors predict the development of pneumothorax. OBJECTIVE: To assess whether pleural adhesions on pretreatment high-resolution computed tomography (HRCT) scans are associated with pneumothorax occurrence after EBV treatment. METHODS: HRCT scan analyses were performed on all patients who received EBV treatment in a randomized controlled trial...
2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28615936/comparison-of-distinctive-models-for-calculating-an-interlobar-emphysema-heterogeneity-index-in-patients-prior-to-endoscopic-lung-volume-reduction
#12
Dorothea Theilig, Felix Doellinger, Alexander Poellinger, Vera Schreiter, Konrad Neumann, Ralf-Harto Hubner
BACKGROUND: The degree of interlobar emphysema heterogeneity is thought to play an important role in the outcome of endoscopic lung volume reduction (ELVR) therapy of patients with advanced COPD. There are multiple ways one could possibly define interlobar emphysema heterogeneity, and there is no standardized definition. PURPOSE: The aim of this study was to derive a formula for calculating an interlobar emphysema heterogeneity index (HI) when evaluating a patient for ELVR...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28604095/anesthetic-management-using-a-laryngeal-mask-airway-in-a-child-with-congenital-bronchial-atresia
#13
Yuki Gomi, Asuka Taguchi, Sahoko Matsunari, Taisuke Iwamoto, Yui Kawamoto, Satoshi Tachikawa, Rikuo Masuda, Kinuko Gotoh, Takehiko Iijima
Congenital bronchial atresia is a relatively rare malformation that causes a segmental obstruction of the bronchus during the fetal period. The peripheral lung distal from the obstructed bronchus becomes hyperinflated because of the unidirectional flow through collateral check-valve entry. Positive pressure ventilation during general anesthesia may cause a rupture of the bulla, resulting in pneumothorax. An 8-year-old girl, who had to undergo oral surgery, was diagnosed as having congenital bronchial atresia and one-fifth of her lung was poorly ventilated...
2017: Anesthesia Progress
https://www.readbyqxmd.com/read/28601334/variation-in-readmission-expenditures-after-high-risk-surgery
#14
Bruce L Jacobs, Chang He, Benjamin Y Li, Alex Helfand, Naveen Krishnan, Tudor Borza, Amir A Ghaferi, Brent K Hollenbeck, Jonathan E Helm, Mariel S Lavieri, Ted A Skolarus
BACKGROUND: The Hospital Readmissions Reduction Program reduces payments to hospitals with excess readmissions for three common medical conditions and recently extended its readmission program to surgical patients. We sought to investigate readmission intensity as measured by readmission cost for high-risk surgeries and examine predictors of higher readmission costs. MATERIALS AND METHODS: We used the Healthcare Cost and Utilization Project's State Inpatient Database to perform a retrospective cohort study of patients undergoing major chest (aortic valve replacement, coronary artery bypass grafting, lung resection) and major abdominal (abdominal aortic aneurysm repair [open approach], cystectomy, esophagectomy, pancreatectomy) surgery in 2009 and 2010...
June 1, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28600386/associations-of-age-and-sex-with-marfan-phenotype-the-national-heart-lung-and-blood-institute-gentac-genetically-triggered-thoracic-aortic-aneurysms-and-cardiovascular-conditions-registry
#15
Mary J Roman, Richard B Devereux, Liliana R Preiss, Federico M Asch, Kim A Eagle, Kathryn W Holmes, Scott A LeMaire, Cheryl L Maslen, Dianna M Milewicz, Shaine A Morris, Siddharth K Prakash, Reed E Pyeritz, William J Ravekes, Ralph V Shohet, Howard K Song, Jonathan W Weinsaft
BACKGROUND: The associations of age and sex with phenotypic features of Marfan syndrome have not been systematically examined in a large cohort of both children and adults. METHODS AND RESULTS: We evaluated 789 Marfan patients enrolled in the National Heart, Lung, and Blood Institute GenTAC (Genetically Triggered Thoracic Aortic Aneurysms and Cardiovascular Conditions) Registry (53% male; mean age 31 [range: 1-86 years]). Females aged ≥15 and males aged ≥16 years were considered adults based on average age of skeletal maturity...
June 2017: Circulation. Cardiovascular Genetics
https://www.readbyqxmd.com/read/28588078/walking-as-a-window-to-risk-and-resiliency
#16
Karen P Alexander
Walking is fundamental to preserving health and independence. An individual's usual pace of walking is also recognized as an indicator of health, risk for dependency, and a predictor of long-term survival. Reducing gait speed by just 0.1m/sec provides important information about outcomes in older adults that goes beyond chronologic age, sex, comorbidity, and self-reported function combined. This small reduction in gate speed is significant because each individual sets the pace necessary to accommodate a host of integrated functions that allow him or her to walk...
June 6, 2017: Circulation
https://www.readbyqxmd.com/read/28586598/an-unusual-pathogen-causing-native-valve-endocarditis
#17
Aneela Hussain, Nosheen Nasir, Bushra Jamil
We present the case of a gentleman who was being evaluated for restrictive lung disease and was incidentally found to have mitral valve stenosis on an HRCT. During the surgical procedure for valve replacement, he was found to have an abscess around the native mitral valve which was drained. Pus from the abscess as well as the valve tissue grew Propionibacterium acnes after holding the cultures long. The patient was treated with IV ceftriaxone with good response to therapy. While Propionibacterium acnes is known to cause prosthetic valve infections there are rare case reports with native valves...
October 2016: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28569201/a-propensity-matched-analysis-of-outcomes-and-long-term-survival-in-stented-versus-stentless-valves
#18
Blake N Shultz, Tomasz Timek, Alan T Davis, John Heiser, Edward Murphy, Charles Willekes, Robert Hooker
BACKGROUND: To compare the perioperative and long term survival after aortic valve replacement using stentless versus stented valves in a large cohort of patients grouped using propensity score matching. METHODS: From 1991 to 2012, 4,563 patients underwent aortic valve replacement with stentless and stented valves at our institution. Propensity score matching identified 444 pairs using 13 independent variables: incidence of operation, smoking status, renal failure, hypertension, diabetes, peripheral vascular disease, cerebrovascular disease, chronic lung disease, ejection fraction, gender, age, valve status, and use of coronary artery bypass graft...
May 31, 2017: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/28544844/image-of-the-month-concomitant-tricuspid-and-mitral-native-valve-infective-endocarditis
#19
Su-Jin Jeong, Sang-Hoon Seol, Pil Sang Song
A 33-year-old immunocompetent man was admitted to the authors' hospital with a one-month duration of fevers, chills, and non-productive coughs, and suddenonset weakness and ischemic pain of both lower extremities. Physical examination revealed crepitating rales heard over bilateral lung fields. On auscultation, a grade 2~3/6 systolic murmur was heard over the leftlower sternal border and apical area. Transthoracic echocardiography revealed a mobile mass on the tricuspid valve compatible with vegetation, in addition to concomitant mitral valve vegetation (Video 1)...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28527920/emerging-bronchoscopic-treatments-for-chronic-obstructive-pulmonary-disease
#20
REVIEW
Wouter H van Geffen, Huib A M Kerstjens, Dirk-Jan Slebos
Chronic obstructive pulmonary disease (COPD) is a progressive lung disease characterized by pathophysiological factors including airflow limitation, hyperinflation and reduced gas exchange. Treatment consists of lifestyle changes, lung rehabilitation and pharmacological therapies such as long acting beta-2-agonists (LABA) and long acting muscarinic antagonists (LAMA). More recently bronchoscopic treatments are emerging for COPD. Among them endobronchial valves(EBV) and endobronchial coils (EBC), next to endobronchial stents, sclerosing agents, targeted lung denervation and liquid nitrogen metered cryospray...
May 17, 2017: Pharmacology & Therapeutics
keyword
keyword
58886
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"