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Safety and efficacy of balloon angioplasty compared to stent-basedstrategies with pulmonary vein stenosis:A systematic review and meta-analysis

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World Journal of Cardiology 2023年第2期15卷 64-75页

作者： Pradyumna Agasthi Srilekha Sridhara Pattara Rattanawong Nithin Venepally Chieh-Ju Chao Hasan Ashraf Sai Harika Pujari Mohamed Allam Diana Almader-Douglas Yamini Alla Amit Kumar Farouk Mookadam Douglas L Packer david R Holmes Jr Donald J Hagler floyd david fortuin Reza Arsanjani Department of Cardiovascular Diseases Mayo ClinicScottsdaleAZ 85259United States Department of Internal Medicine Banner Heart HospitalMesaAZ 85054United States Library Services Mayo ClinicPhoenixAZ 85054United States Department of Medicine Bronx Lebanon HospitalBronxNY 10457United States Department of Cardiovascular Diseases Mayo ClinicRochesterMN 55905United States

BACKGROUND Pulmonary vein stenosis(PVS)is an uncommon but known cause of morbidity and mortality in adults and children and can be managed with percutaneous revascularization strategies of pulmonary vein balloon angioplasty(PBA)or pulmonary vein stent implantation(PSI).AIM To study the safety and efficacy outcomes of PBA vs PSI in all patient categories with *** We performed a literature search of all studies comparing outcomes of patients evaluated by PBA vs PSI for *** selected all published studies comparing PBA vs PSI for PVS with reported outcomes of restenosis and procedure-related complications in all patient *** adults,PVS following atrial fibrillation ablation and in children PVS related to congenital etiology or post-procedural PVS following total or partial anomalous pulmonary venous return repair were *** patient-centered outcomes were risk of restenosis requiring re-intervention and procedural-related *** metaanalysis was performed by computing odds ratios(ORs)using the random effects model based on underlying statistical *** Eight observational studies treating 768 severe PVS in 487 patients met our inclusion *** age range of patients was 6 months to 70 years and 67%were *** primary outcome of the re-stenosis requiring re-intervention occurred in 196 of 325 veins in the PBA group and 111 of 443 veins in the PSI *** to PSI,PBA was associated with a significantly increased risk of re-stenosis(OR 2.91,95%CI:1.15-7.37,P=0.025,I2=79.2%).Secondary outcomes of the procedurerelated complications occurred in 7 of 122 patients in the PBA group and 6 of 69 in the PSI *** were no statistically significant differences in the safety outcomes between the two groups(OR:0.94,95%CI:0.23-3.76,P=0.929,I^(2)=0.0%).CONCLUSION Across all patient categories with PVS,PSI is associated with reduced risk of re-intervention and is as safe as PBA and should be considered first-line ther

关键词： Pulmonary veins Pulmonary vein stenosis Constriction Balloon angioplasty Stents Drugeluting stents

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Stop flow lithography synthesis of non-spherical metal oxide particles

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Particuology 2014年第3期12卷 91-97页

作者： david Baah Tobias Donnell Julaunica Tigner Tamara floyd-Smith Materials Science & Engineering Department Tuskegee UniversityTuskegeeAL 36088USA Chemical Engineering Department Tuskegee UniversityTuskegeeAL 36088USA

Non-spherical micron and hand-sized particles and their composites have become essential in select application areas of optics, wear resistance, personnel protection, chemical mechanical polishing, and biomedicine. In this paper, the synthesis of composite and ceramic non-spherical particles using stop flow lithography is reported. Precursor suspensions of poly（ethylene glycol） diacrylate, 2-hydroxy- 2-methylpropiophenone and SiO2 or Al2O3 are prepared. The precursor suspension flows through a microfluidic device mounted on an upright microscope and is polymerized in an automated process. A photomask patterned with transparent geometric features, which define the cross-sectional shapes of the particles, masks the UV light to synthesize micron sized particles. Particles with axial dimensions ranging from 35 to 167μm were synthesized. Control of device channel depth and objective lens magnification enables the manipulation of the particle size. Composite particles in triangular, square, pentagonal, hexagonal, and circular cross sections were synthesized. Subsequently, the transformation of the composite particles into the corresponding metal oxide particles was achieved through polymer burn-offand sintering.

关键词： Microfluidics Stop flow lithography Electron microscopy

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Prediction of permanent pacemaker implantation after transcatheter aortic valve replacement:The role of machine learning

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World Journal of Cardiology 2023年第3期15卷 95-105页

作者： Pradyumna Agasthi Hasan Ashraf Sai Harika Pujari Marlene Girardo Andrew Tseng Farouk Mookadam Nithin Venepally Matthew R Buras Bishoy Abraham Banveet K Khetarpal Mohamed Allam Siva K Mulpuru MD Mackram F Eleid Kevin L Greason Nirat Beohar John Sweeney david fortuin david R Jr Holmes Reza Arsanjani Department of Cardiology Mayo ClinicPhoenixAZ 85054United States Department of Internal Medicine The Brooklyn Hospital CenterBrooklynNY 11201United States Department of Biostatistics Mayo ClinicPhoenixAZ 85054United States Department of Cardiovascular Diseases Mayo ClinicRochesterMN 55905United States Department of Statistics Mayo ClinicPhoenixAZ 85054United States Department of Cardiovascular Surgery Mayo ClinicRochesterMN 55905United States Mount Sinai Medical Center Columbia UniversityMiami BeachFL 33138United States

BACKGROUND Atrioventricular block requiring permanent pacemaker(PPM)implantation is an important complication of transcatheter aortic valve replacement(TAVR).Application of machine learning could potentially be used to predict preprocedural risk for *** To apply machine learning to be used to predict pre-procedural risk for *** A retrospective study of 1200 patients who underwent TAVR(January 2014-December 2017)was performed.964 patients without prior PPM were included for a 30-d analysis and 657 patients without PPM requirement through 30 d were included for a 1-year *** the exclusion of variables with near-zero variance or≥50%missing data,167 variables were included in the random forest gradient boosting algorithm(GBM)optimized using 5-fold cross-validations repeated 10 *** receiver operator curve(ROC)for the GBM model and PPM risk score models were calculated to predict the risk of PPM at 30 d and 1 *** Of 964 patients included in the 30-d analysis without prior PPM,19.6%required PPM *** mean age of patients was 80.9±8.7 years.42.1%were *** 657 patients included in the 1-year analysis,the mean age of the patients was 80.7±*** those,42.6%of patients were female and 26.7%required PPM at 1-year *** area under ROC to predict 30-d and 1-year risk of PPM for the GBM model(0.66 and 0.72)was superior to that of the PPM risk score(0.55 and 0.54)with a P value<*** The GBM model has good discrimination and calibration in identifying patients at high risk of PPM post-TAVR.

关键词： Transcatheter aortic valve replacement Permanent pacemaker implantation Machine learning

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A randomized trial comparing the Tennant Biomodulator to transcutaneous electrical nerve stimulation and traditional Chinese acupuncture for the treatment of chronic pain in military service members

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Military Medical Research 2020年第2期7卷 140-150页

作者： Kimberly S.Peacock Erika Stoerkel Salvatore Libretto Weimin Zhang Alice Inman Michael Schlicher John D.Cowsar Jr david Eddie Joan Walter University of Texas Health San Antonio 7703 Floyd Curl DriveSan AntonioTX78229USA TLI Foundation 1750 Tysons BoulevardMcLeanVirginia22102USA Henry M.Jackson Foundation 6720A Rockledge DriveBethesdaMD20817USA BD Life Sciences 1 Becton DriveFranklin LakesNJ07417USA Brooke Army Medical Center 3551 Roger Brooke DriveFort Sam HoustonTX78234USA Madigan Army Medical Center 9040A Jackson AveJoint Base Lewis-McChordWA98431USA MedPost Urgent Care Center 513 Cibolo Valley DriveCiboloTX78108USA Massachusetts General Hospital Harvard Medical School151 Merrimac St.6th FloorBostonMA02114USA H&S Ventures Samueli Integrative Health Program1800 Diagonal RoadSuite 617AlexandriaVA22314USA

Background:The present investigation tested the efficacy of the Tennant Biomodulator,a novel pain management intervention that uses biofeedback-modulated electrical stimulation,to reduce chronic pain and its psychosocial sequelae in a sample of current and former military service *** Tennant Biomodulator used on its most basic setting was compared to two commonly used,non-pharmacological pain treatments—traditional Chinese acupuncture and transcutaneous electrical nerve stimulation(TENS)—in a comparative efficacy,randomized,open-label ***:Participants included 100 active duty and retired service men and women with chronic pain undergoing treatment at the Brooke Army Medical Center in Texas,USA,randomly assigned to receive six,weekly sessions of either Tennant Biomodulator treatment,traditional Chinese acupuncture,or TENS,in addition to usual *** was conducted between May 2010 to September *** measures were collected at intake,before and after each treatment session,and at a 1-month ***-to-treat analyses were used throughout,with mixed models used to investigate main effects of group,time,and group×time interactions with consideration given to quadratic *** measured included ratings of chronic pain,pain-related functional disability,and symptoms of post-traumatic stress disorder(PTSD)and ***:On average,regardless of their treatment group,participants exhibited a 16%reduction in pain measured by the Brooke Army Medical Center’s Clinic Pain Log[F(1,335)=55.7,P<0.0001]and an 11%reduction in pain-related disability measured by the Million Visual Analog Scale[MVAS:F(1,84)=28.3,P<0.0001]from baseline to the end of treatment,but no one treatment performed better than the other,and the reductions in pain and pain-related disability were largely lost by 1-month *** of PTSD and depression did not change significantly as a function of time or ***:Findings build on previ

关键词： Tennant biomodulator Acupuncture Transcutaneous electrical nerve stimulation Chronic pain Military service members

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德国喇叭花 Avantgarde UNO和DUO音箱

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高保真音响 2006年第4期 34-36页

作者： david

著名的德国音箱厂Avantgarde Acoustic Lautsprechersysteme GmbH创立于1991年（公司网地址http：//***）。由于公司发起人之一Holger Fromme曾在Pink floyd的演唱会上体验到大型号角音箱的惊人表现，因此兴起自行设计号角喇叭的念头，... 详细信息

著名的德国音箱厂Avantgarde Acoustic Lautsprechersysteme GmbH创立于1991年（公司网地址http：//***）。由于公司发起人之一Holger Fromme曾在Pink floyd的演唱会上体验到大型号角音箱的惊人表现，因此兴起自行设计号角喇叭的念头，他便与Matthias Ruff合作，开始研发号角音箱。

关键词：号角音箱德国喇叭花 DUO UNO http 号角喇叭公司

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