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https://www.readbyqxmd.com/read/29108843/outcomes-following-elective-resection-of-congenital-pulmonary-airway-malformations-are-equivalent-after-3-months-of-age-and-a-weight-of-5-kg
#1
Brian C Gulack, Harold J Leraas, Brian Ezekian, Jina Kim, Christopher Reed, Obinna O Adibe, Henry E Rice, Elisabeth T Tracy
PURPOSE: Resection of congenital pulmonary airway malformations (CPAMs) is often performed to reduce the risk of recurrent infection and malignant transformation. However, there is substantial variation in the timing of resection. This study was performed to determine the association of age and weight on outcomes following elective resection of CPAMs. METHODS: The American College of Surgeons National Surgical Quality Improvement Program-Pediatric database from 2012 to 2014 was queried for infants undergoing elective resection of a CPAM...
October 9, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/29099777/fabrication-of-a-nano-zno-polyethylene-wood-fiber-composite-with-enhanced-microwave-absorption-and-photocatalytic-activity-via-a-facile-hot-press-method
#2
Baokang Dang, Yipeng Chen, Xiaoping Shen, Bo Chen, Qingfeng Sun, Chunde Jin
A polyethylene/wood-fiber composite loaded with nano-ZnO was prepared by a facile hot-press method and was used for the photocatalytic degradation of organic compounds as well as for microwave absorption. ZnO nanoparticles with an average size of 29 nm and polyethylene (PE) powders were dispersed on the wood fibers' surface through a viscous cationic polyacrylamide (CPAM) solution. The reflection loss (RL) value of the resulting composite was -21 dB, with a thickness of 3.5 mm in the frequency of 17.17 GHz...
November 3, 2017: Materials
https://www.readbyqxmd.com/read/29099644/medium-term-pulmonary-function-test-after-thoracoscopic-lobectomy-for-congenital-pulmonary-airway-malformation-a-comparative-study-with-normal-control
#3
Chin Tung Lau, Kenneth K Y Wong, Paul Tam
INTRODUCTION: Congenital pulmonary airway malformation (CPAM) is a major indication of lobectomy in children. Early lobectomy had been proposed for the advantage of compensatory lung growth. Despite the increasing use of thoracoscopic lobectomy its effect on postoperative lung function was still not well established in the literature. This study was therefore performed to study the result of postoperative pulmonary function test (PFT) on a medium term basis. MATERIALS AND METHODS: All patients who underwent thoracoscopic lobectomy for CPAM between 2006 and 2010 were recruited into the study...
November 3, 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/29065733/hepatitis-b-core-protein-as-a-therapeutic-target
#4
Lung-Yi Mak, Danny Ka-Ho Wong, Wai-Kay Seto, Ching-Lung Lai, Man Fung Yuen
Chronic hepatitis B virus (HBV) infection is difficult to cure, due to the presence of covalently-closed-circular DNA and virus-mediated blunting of host immune response. Existing therapies with nucleos(t)ide analogue or pegylated-interferon are not sufficient to achieve a high rate of HBV surface antigen seroclearance, a more desirable treatment outcome. Novel therapeutic agents targeting alternative viral replication steps are being developed. In this review, we will discuss the hepatitis B core antigen (HBcAg) as a therapeutic target...
December 2017: Expert Opinion on Therapeutic Targets
https://www.readbyqxmd.com/read/29046943/congenital-pulmonary-airway-malformations-state-of-the-art-review-for-pediatrician-s-use
#5
REVIEW
Claire Leblanc, Marguerite Baron, Emilie Desselas, Minh Hanh Phan, Alexis Rybak, Guillaume Thouvenin, Clara Lauby, Sabine Irtan
Congenital pulmonary airway malformations or CPAM are rare developmental lung malformations, leading to cystic and/or adenomatous pulmonary areas. Nowadays, CPAM are diagnosed prenatally, improving the prenatal and immediate postnatal care and ultimately the knowledge on CPAM pathophysiology. CPAM natural evolution can lead to infections or malignancies, whose exact prevalence is still difficult to assess. The aim of this "state-of-the-art" review is to cover the recently published literature on CPAM management whether the pulmonary lesion was detected during pregnancy or after birth, the current indications of surgery or surveillance and finally its potential evolution to pleuro-pulmonary blastoma...
December 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/29028157/transthoracic-catheter-drainage-for-large-symptomatic-congenital-pulmonary-airway-malformation
#6
Seong Hee Oh, Chae Young Kim, Byong Sop Lee, Dong Kwan Kim, Ellen Ai-Rhan Kim, Ki-Soo Kim
BACKGROUND: Surgical resection of large symptomatic congenital pulmonary airway malformation (CPAM) in newborns has high risks of mortality and postoperative morbidity. This study aimed to report the clinical outcomes of newborns who underwent percutaneous transthoracic catheter drainage (PTCD) of large symptomatic CPAM before surgical resection. METHODS: This was a retrospective, descriptive study based on review of the medical records of newborn infants who required surgical resection of large symptomatic CPAM at a single tertiary hospital from 2001 to 2017...
December 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28974162/antenatal-assessment-and-postnatal-outcome-of-fetal-echogenic-lung-lesions-a-decade-s-experience-at-a-tertiary-referral-hospital
#7
Stefan C Kane, Fabrício Da Silva Costa, Joseph A Crameri, Karen L Reidy, Helen Kaganov, Ricardo Palma-Dias
INTRODUCTION: Fetal echogenic lung lesions (ELL) are the commonest pulmonary pathology diagnosed on antenatal sonography, and include congenital pulmonary airway malformations (CPAMs) and bronchopulmonary sequestrations. This study aimed to evaluate the predictive utility of the CPAM volume ratio (CVR) at presentation in a series of fetuses with ELLs at a tertiary Australian referral hospital. MATERIAL AND METHODS: Retrospective cohort study of all pregnancies with a prenatal diagnosis of an isolated fetal echogenic lung lesion managed at the Royal Women's Hospital, Victoria, Australia, between 2005 and 2015...
October 16, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28960660/conservative-post-natal-management-of-antenatally-diagnosed-congenital-pulmonary-airway-malformations
#8
Allya V Makhijani, Flora Y Wong
AIM: Management of congenital pulmonary airway malformations (CPAM) is controversial, especially for asymptomatic patients. We aim to describe the clinical manifestations and management of CPAM at a tertiary paediatric hospital using a retrospective audit. METHODS: Infants with CPAM were identified on the Fetal Diagnostic Unit database from 2007 to 2014. Information on antenatal and post-natal management was collected from medical record. RESULTS: Thirty-five infants with antenatally diagnosed CPAM were included...
September 28, 2017: Journal of Paediatrics and Child Health
https://www.readbyqxmd.com/read/28953466/application-of-pac-and-flocculants-for-improving-settling-of-solid-particles-in-oilfield-wastewater-with-high-salinity-and-ca-2
#9
Guoliang Liu, Fusheng Zhang, Yuanzhi Qu, He Liu, Lun Zhao, Mingyue Cui, Yangjian Ou, Dongshi Geng
The suspended solids in wastewater from Rekabak oilfield, Kazakhstan, were characterized and treated with flocculants to enhance settling. The wastewater contained a high concentration of total dissolved solids and calcium ion. Scanning electron microscopy and energy dispersive X-ray analyses showed that suspended solids were mainly composed of corrosion products (iron oxides) and silicon dioxide particles. Also, much salt deposition from wastewater caused a large increase in the suspended solids value. The settling of solid particles in wastewater was investigated by turbidity decrease within 60 min...
September 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/28948063/fetal-thoracoamniotic-shunting-in-a-case-of-congenital-pulmonary-airway-malformations-with-hydrops-fetalis
#10
Hayase Nitta, Yusuke Taira, Tadatsugu Kinjo, Yukiko Chinen, Hitoshi Masamoto, Naoya Sanabe, Hideki Goya, Tomohide Yoshida, Rika Sugibayashi, Masahiro Sumie, Seiji Wada, Haruhiko Sago, Yoichi Aoki
Aim  We report a case of congenital pulmonary airway malformation (CPAM) with hydrops in which the fetus underwent thoracoamniotic shunting. Case Report  A 40-year-old (G1P1) woman was diagnosed with a macrocystic CPAM. Thoracoamniotic shunting was performed at 19 weeks of gestation but not well drained and was successfully performed again at 23 weeks. However, the CPAM volume ratio, abdominal circumference, and amniotic fluid index started increasing from 28 weeks and hydrops worsened. The insufficient shunting and the fetal cardiac failure had to be considered...
July 2017: American Journal of Perinatology Reports
https://www.readbyqxmd.com/read/28946434/conditioning-of-sewage-sludge-via-combined-ultrasonication-flocculation-skeleton-building-to-improve-sludge-dewaterability
#11
Cheng Zhu, Panyue Zhang, Hongjie Wang, Jie Ye
Strong water trapping ability of polyelectrolyte flocculated sludge and high compressibility of sludge filter cake greatly hindered the further improvement of sludge dewaterability. Ultrasound (US) was used to strip the water from the sludge flocs through sludge disintegration, traditional cationic polyacrylamide (CPAM) was applied to reconstruct the sludge aggregates through flocculation, and rice husk (RH) was utilized to improve the permeability of sludge filter cake as skeleton builders in this paper. The feasibility of combined US-CPAM-RH sludge conditioning was demonstrated, and single and co-conditioning processes were compared to explore the synergetic effect and mechanisms of US-CPAM-RH sludge conditioning...
January 2018: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28945802/hbv-core-protein-allosteric-modulators-differentially-alter-cccdna-biosynthesis-from-de-novo-infection-and-intracellular-amplification-pathways
#12
Fang Guo, Qiong Zhao, Muhammad Sheraz, Junjun Cheng, Yonghe Qi, Qing Su, Andrea Cuconati, Lai Wei, Yanming Du, Wenhui Li, Jinhong Chang, Ju-Tao Guo
Hepatitis B virus (HBV) core protein assembles viral pre-genomic (pg) RNA and DNA polymerase into nucleocapsids for reverse transcriptional DNA replication to take place. Several chemotypes of small molecules, including heteroaryldihydropyrimidines (HAPs) and sulfamoylbenzamides (SBAs), have been discovered to allosterically modulate core protein structure and consequentially alter the kinetics and pathway of core protein assembly, resulting in formation of irregularly-shaped core protein aggregates or "empty" capsids devoid of pre-genomic RNA and viral DNA polymerase...
September 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28942169/effect-of-nanoparticles-size-and-polyelectrolyte-on-nanoparticles-aggregation-in-a-cellulose-fibrous-matrix
#13
Vikram Singh Raghuwanshi, Uthpala Manavi Garusinghe, Jan Ilavsky, Warren J Batchelor, Gil Garnier
Controlling nanoparticles (NPs) aggregation in cellulose/NPs composites allows to optimise NPs driven properties and their applications. Polyelectrolytes are used to control NPs aggregation and their retention within the fibrous matrix. Here, we aim at evaluating how a polyelectrolyte (Cationic Polyacrylamide; CPAM, molecular weight: 13MDa, charge: 50%, Radius of gyration: 30-36nm) adsorbs and re-conforms onto the surface of silica(SiO2) NPs differing in diameter (8, 22 and 74nm) and to investigate the respective NPs aggregation in cellulose matrices...
January 15, 2018: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28917849/understanding-the-microstructure-and-absorption-rate-of-starch-based-superabsorbent-polymers-prepared-under-high-starch-concentration
#14
Dongling Qiao, Long Yu, Xianyang Bao, Binjia Zhang, Fatang Jiang
From a microstructural view, the focus of this work was on the water absorption rate of starch-based superabsorbent polymers (starch-SAPs) prepared under high starch concentration (0.27:1w/w starch:water). The effects of starch amylose/amylopectin ratio were disclosed. The increase in amylopectin reduced the amount (CPAM) of polyacrylamide (PAM) in starch-SAPs but increased the ratio of starch carbons grafted with PAM, which eventually decreased the average length (LPAM) of PAM chains. The shorter PAM chains could reduce starch-SAP chain flexibility, thus inducing larger mass fractal gels in swollen starch-SAPs...
November 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28822093/leonardite-derived-humic-substances-are-great-adsorbents-for-cadmium
#15
Fande Meng, Guodong Yuan, Jing Wei, Dongxue Bi, Hailong Wang
Adsorption is an important mechanism to immobilize cadmium (Cd) in soil, for which humic substances have a potential. However, commercial humic substances are either very acidic (pH = 2) or alkaline/Na(+)-enriched, making them less suitable for use in acid and saline soils. Here, we used leonardite to produce humic adsorbents HA (pH = 4.02), Ca-HA (pH = 10.9), and Ca-CPAM-HA (pH = 9.62) by using HCl, CaCl2, or CaCl2-polyacrylamide as a flocculant. Their elemental compositions, acidity, and spectroscopic properties were determined, and their Cd adsorption characteristics were assessed by batch kinetic and thermodynamic experiments at environmentally relevant concentrations...
October 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28812458/congenital-cystic-lung-lesions-evolution-from-in-utero-detection-to-pathology-diagnosis-a-multidisciplinary-approach
#16
Steven Hardee, Lea Tuzovic, Cicero T Silva, Robert A Cowles, Joshua Copel, Raffaella A Morotti
Congenital cystic lung lesions are a group of rare pathologies that are usually diagnosed in the prenatal period. The majority of these lesions are diagnosed at pathology examination as congenital pulmonary airway malformations (CPAM) and bronchopulmonary sequestration (BPS). These lesions are typically managed by surgical intervention within the first year of life and have an excellent prognosis. We examined the evolution of imaging appearances from prenatal diagnosis to postnatal work-up of these lesions and correlate imaging and pathological findings...
September 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28753246/outcome-of-prenatally-diagnosed-congenital-lung-anomalies-in-the-north-of-england-a-review-of-228-cases-to-aid-in-prenatal-counselling
#17
Lesley Walker, Kelly Cohen, Judith Rankin, David Crabbe
OBJECTIVE: To describe data on congenital lung anomalies identified on prenatal ultrasound from two centres in the North of England. METHOD: This retrospective case series includes all cases notified to the Northern Congenital Abnormality Survey from 1990 to 2010 and to Leeds Regional Fetal Medicine Unit 2000-2015. RESULTS: There were a total of 228 cases, 101 from Northern Congenital Abnormality Survey and 127 from Leeds Regional Fetal Medicine Unit...
October 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28737279/exercise-capacity-is-not-decreased-in-children-who-have-undergone-lung-resection-early-in-life-for-congenital-thoracic-malformations-compared-to-healthy-age-matched-children
#18
Ashlee Dunn, Kasey Pearce, Robin Callister, Adam Collison, Matthew Morten, Payal Mandaliya, Lauren Platt, Ben Dascombe, Rajendra Kumar, Hiran Selvadurai, Paul D Robinson, Joerg Mattes
PURPOSE: The purpose of this study was to compare (i) the exercise capacity and (ii) lung function prior to and immediately post cardiopulmonary exercise tests (CPET) of children who underwent early life lung resection for Congenital Pulmonary Airway Malformations (CPAM) to healthy control children. METHOD: Eight children with CPAM (four males, age 9.6 ± 1.8 years) and eight control children without respiratory disease (three males, age 9.4 ± 1.4 years) performed a CPET on a cycle ergometer, during which maximal oxygen consumption (V̇O2max ) and heart rate were measured...
July 24, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28638495/an-atypical-presentation-of-congenital-pulmonary-airway-malformation-cpam-a-rare-case-with-antenatal-ultrasound-findings-and-review-of-literature
#19
Munnangi Satya Gautam, Srinivas M Naren Satya, Ivvala Sai Prathyusha, K Hema Chandra Reddy, Kamala Retnam Mayilvaganan, Deepthi Raidu
BACKGROUND: Congenital pulmonary airway malformation (CPAM) is a relatively rare congenital anomaly with a wide spectrum of ultrasound features depending on the specific variety of CPAM. Antenatal ultrasound is a valuable, safe, nonionizing, cost-effective, widely available and easily reproducible imaging tool and is indispensable in the diagnosis of CPAM. In this paper, we aimed to report an atypical imaging presentation of CPAM type II in the second trimester, extensively involving all lobes of the left lung...
2017: Polish Journal of Radiology
https://www.readbyqxmd.com/read/28589256/treatment-of-congenital-pulmonary-airway-malformations-a-systematic-review-from-the-apsa-outcomes-and-evidence-based-practice-committee
#20
Cynthia D Downard, Casey M Calkins, Regan F Williams, Elizabeth J Renaud, Tim Jancelewicz, Julia Grabowski, Roshni Dasgupta, Milissa McKee, Robert Baird, Mary T Austin, Meghan A Arnold, Adam B Goldin, Julia Shelton, Saleem Islam
PURPOSE: Variation in management characterizes treatment of infants with a congenital pulmonary airway malformation (CPAM). This review addresses six clinically applicable questions using available evidence to provide recommendations for the treatment of these patients. METHODS: Questions regarding the management of a pediatric patient with a CPAM were generated. English language articles published between 1960 and 2014 were compiled after searching Medline and OvidSP...
June 6, 2017: Pediatric Surgery International
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