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https://www.readbyqxmd.com/read/28720368/a-critical-review-of-miniaturised-percutaneous-nephrolithotomy-is-smaller-better
#1
REVIEW
Silvia Proietti, Guido Giusti, Mahesh Desai, Arvind P Ganpule
CONTEXT: In an effort to reduce morbidity related to percutaneous nephrolithotomy (PCNL), some investigators have progressively introduced miniaturised approaches. The development of miniaturised nephroscopes facilitated widespread dissemination of these techniques and a significant expansion of the role of PCNL in endourology. OBJECTIVE: To discuss the different techniques comprising modern PCNL and identify the pros and cons of each of them. EVIDENCE ACQUISITION: Data for this review were identified through a search of PubMed, including studies published in the last 20 yr in core clinical journals in English...
February 2017: European Urology Focus
https://www.readbyqxmd.com/read/28663850/multimodal-evaluation-of-ultra-short-laser-pulses-treatment-for-skin-burn-injuries
#2
Moises Oliveira Dos Santos, Anne Latrive, Pedro Arthur Augusto De Castro, Wagner De Rossi, Telma Maria Tenorio Zorn, Ricardo Elgul Samad, Anderson Zanardi Freitas, Carlos Lenz Cesar, Nilson Dias Vieira Junior, Denise Maria Zezell
Thousands of people die every year from burn injuries. The aim of this study is to evaluate the feasibility of high intensity femtosecond lasers as an auxiliary treatment of skin burns. We used an in vivo animal model and monitored the healing process using 4 different imaging modalities: histology, Optical Coherence Tomography (OCT), Second Harmonic Generation (SHG), and Fourier Transform Infrared (FTIR) spectroscopy. 3 dorsal areas of 20 anesthetized Wistar rats were burned by water vapor exposure and subsequently treated either by classical surgical debridement, by laser ablation, or left without treatment...
March 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28629611/sentinel-lymph-node-mapping-in-minimally-invasive-surgery-role-of-imaging-with-color-segmented-fluorescence-csf
#3
Maite I Lopez Labrousse, Michael Frumovitz, M Guadalupe Patrono, Pedro T Ramirez
OBJECTIVE: Sentinel lymph node mapping, alone or in combination with pelvic lymphadenectomy, is considered a standard approach in staging of patients with cervical or endometrial cancer [1-3]. The goal of this video is to demonstrate the use of indocyanine green (ICG) and color-segmented fluorescence when performing lymphatic mapping in patients with gynecologic malignancies. METHODS: Injection of ICG is performed in two cervical sites using 1mL (0.5mL superficial and deep, respectively) at the 3 and 9 o'clock position...
June 16, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28595496/reconstruction-of-input-functions-from-a-dynamic-pet-image-with-sequential-administration-of-15-o2-and-formula-see-text-for-noninvasive-and-ultra-rapid-measurement-of-cbf-oef-and-cmro2
#4
Nobuyuki Kudomi, Yukito Maeda, Hiroyuki Yamamoto, Yuka Yamamoto, Tetsuhiro Hatakeyama, Yoshihiro Nishiyama
CBF, OEF, and CMRO2 images can be quantitatively assessed using PET. Their image calculation requires arterial input functions, which require invasive procedure. The aim of the present study was to develop a non-invasive approach with image-derived input functions (IDIFs) using an image from an ultra-rapid O2 and C(15)O2 protocol. Our technique consists of using a formula to express the input using tissue curve with rate constants. For multiple tissue curves, the rate constants were estimated so as to minimize the differences of the inputs using the multiple tissue curves...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28500566/an-update-on-addressing-important-peripheral-nerve-problems-challenges-and-potential-solutions
#5
Wilson Z Ray, Mark A Mahan, Danzhu Guo, Danqing Guo, Michel Kliot
From time to time it is thoughtful and productive to review a medical field and reflect upon what are the major issues that need to be addressed and what is being done to do so. This review article is not meant to be all-inclusive but rather focuses on four evolving areas in the field of peripheral nerve disorders and treatments: (1) nerve surgery under ultrasound guidance using a new ultra-minimally invasive thread technique; (2) evolving magnetic resonance imaging (MRI) and ultrasound imaging techniques that are helping to both diagnose and treat a variety of peripheral nerve problems including entrapment neuropathies, traumatic nerve injuries, and masses arising from nerves; (3) promoting recovery after nerve injury using electrical stimulation; and (4) developing animal models to reproduce a severe nerve injury (neurotmetic grade in continuity) that requires a surgical intervention and repair...
May 12, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28478724/role-of-minimally-invasive-percutaneous-nephrolithotomy-techniques-micro-and-ultra-mini-pcnl-15f-in-the-pediatric-population-a-systematic-review
#6
Patrick Jones, Grace Bennett, Omar M Aboumarzouk, Stephen Griffin, Bhaskar K Somani
INTRODUCTION: Management of pediatric stone disease is challenging, with standard percutaneous nephrolithotomy (PCNL) having a good stone-free rate (SFR), but with associated high complication rates. Miniaturization of this technique has led to the rise of minimally invasive PCNL techniques such as micro (<10F) and ultra-mini (<15F) PCNL procedures. Our objective was to perform a systematic review of the literature to evaluate the success and complication rates of minimally invasive PCNL techniques in the pediatric age group (<18 years)...
June 13, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28351627/non-targeted-lc-ms-based-metabolomics-analysis-of-the-urinary-steroidal-profile
#7
Amelia Palermo, Francesco Botrè, Xavier de la Torre, Nicola Zamboni
The urinary steroidal fraction has been extensively explored as non-invasive alternative to monitor pathological conditions as well as to unveil the illicit intake of pseudo-endogenous anabolic steroids in sport. However, the majority of previous approaches involved the a priori selection of potentially relevant target analytes. Here we describe the non-targeted analysis of the urinary steroidal profiles. The workflow includes minimal sample pretreatment and normalization according to the specific gravity of urine, a 20 min reverse phase ultra-performance liquid chromatographic separation hyphenated to electrospray time-of-flight mass spectrometry...
April 29, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28325008/feasibility-of-an-ultra-low-power-digital-signal-processor-platform-as-a-basis-for-a-fully-implantable-brain-computer-interface-system
#8
Po T Wang, Keulanna Gandasetiawan, Colin M McCrimmon, Alireza Karimi-Bidhendi, Charles Y Liu, Payam Heydari, Zoran Nenadic, An H Do
A fully implantable brain-computer interface (BCI) can be a practical tool to restore independence to those affected by spinal cord injury. We envision that such a BCI system will invasively acquire brain signals (e.g. electrocorticogram) and translate them into control commands for external prostheses. The feasibility of such a system was tested by implementing its benchtop analogue, centered around a commercial, ultra-low power (ULP) digital signal processor (DSP, TMS320C5517, Texas Instruments). A suite of signal processing and BCI algorithms, including (de)multiplexing, Fast Fourier Transform, power spectral density, principal component analysis, linear discriminant analysis, Bayes rule, and finite state machine was implemented and tested in the DSP...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28247667/-ultraminipercutaneous-nephrolithotripsy-in-treating-kidney-stones
#9
A G Martov, S V Dutov, A S Andronov
INTRODUCTION: Percutaneous nephrolithotripsy (PNL) is the recommended method of surgical treatment of kidney stones of size greater than 2 cm. Trends in the development of modern urology have been steadily toward less traumatic method to treat nephrolithiasis - minimally invasive PNL. The present work aimed to explore of the possibilities of one of the modern variants of minimally invasive PNL - ultra-mini-PNL in treating nephrolithiasis. MATERIALS AND METHODS: The study included 60 patients (mean age 45...
April 2016: Urologii︠a︡
https://www.readbyqxmd.com/read/28227510/feasibility-of-an-ultra-low-power-digital-signal-processor-platform-as-a-basis-for-a-fully-implantable-brain-computer-interface-system
#10
Po T Wang, Keulanna Gandasetiawan, Colin M McCrimmon, Alireza Karimi-Bidhendi, Charles Y Liu, Payam Heydari, Zoran Nenadic, An H Do, Po T Wang, Keulanna Gandasetiawan, Colin M McCrimmon, Alireza Karimi-Bidhendi, Charles Y Liu, Payam Heydari, Zoran Nenadic, An H Do, An H Do, Zoran Nenadic, Colin M McCrimmon, Keulanna Gandasetiawan, Payam Heydari, Alireza Karimi-Bidhendi, Po T Wang, Charles Y Liu
A fully implantable brain-computer interface (BCI) can be a practical tool to restore independence to those affected by spinal cord injury. We envision that such a BCI system will invasively acquire brain signals (e.g. electrocorticogram) and translate them into control commands for external prostheses. The feasibility of such a system was tested by implementing its benchtop analogue, centered around a commercial, ultra-low power (ULP) digital signal processor (DSP, TMS320C5517, Texas Instruments). A suite of signal processing and BCI algorithms, including (de)multiplexing, Fast Fourier Transform, power spectral density, principal component analysis, linear discriminant analysis, Bayes rule, and finite state machine was implemented and tested in the DSP...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28215061/the-innovation-trial-four-year-safety-and-effectiveness-of-the-incraft%C3%A2-aaa-stent-graft-system-for-endovascular-repair
#11
MULTICENTER STUDY
Giovanni Pratesi, Carlo Pratesi, Roberto Chiesa, Gioacchino Coppi, Dierk Scheinert, Jan S Brunkwall, Stefaan van der Meulen, Giovanni Torsello
BACKGROUND: This paper reports the 4-year safety and effectiveness of the INCRAFT® AAA Stent-Graft System (Cordis Corp., Milpitas, CA, USA), an ultra-low-profile device for the treatment of abdominal aortic aneurysms. METHODS: The INNOVATION Trial is the prospective, first-in-human, multicenter trial to evaluate the safety and effectiveness of the INCRAFT® System. Patients underwent annual clinical and computed tomography angiography examination as part of the study protocol...
October 2017: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28207655/internally-randomized-control-trial-of-radiation-exposure-using-ultra-low-radiation-imaging-versus-traditional-c-arm-fluoroscopy-for-patients-undergoing-single-level-minimally-invasive-transforaminal-lumbar-interbody-fusion
#12
Timothy Y Wang, S Harrison Farber, Scott S Perkins, Adam G Back, Sarah A Byrd, Debbie Chi, David Vincent, Isaac O Karikari
STUDY DESIGN: Randomized controlled trial. OBJECTIVE: To compare radiation exposure between ultra-low radiation imaging (ULRI) with image enhancement and standard-dose fluoroscopy for patients undergoing minimally invasive transforaminal lumbar interbody fusion (MIS TLIF). SUMMARY OF BACKGROUND DATA: Although the benefits of MIS are lauded by many, there is a significant amount of radiation exposure to surgeon and operating room personnel...
February 15, 2017: Spine
https://www.readbyqxmd.com/read/28197040/re-agrawal-et-al-ultra-mini-percutaneous-nephrolithotomy-a-minimally-invasive-option-for-percutaneous-stone-removal-indian-j-urol-2016-32-132-6
#13
COMMENT
Mohd Nazli Kamarulzaman
No abstract text is available yet for this article.
January 2017: Indian Journal of Urology: IJU: Journal of the Urological Society of India
https://www.readbyqxmd.com/read/28197030/superperc-a-new-technique-in-minimally-invasive-percutaneous-nephrolithotomy
#14
Kaushik Shah, Madhu Sudan Agrawal, Dilip Kumar Mishra
INTRODUCTION: Percutaneous nephrolithotomy (PCNL) has undergone significant changes in recent years in the quest for improving efficacy and reducing morbidity. Newer minimally-invasive modalities of PCNL such as mini-PCNL, ultra-mini PCNL, and micro-PCNL have evolved with advancement in optics and technology. However, with these newer advancements, migration of small fragments produced with laser lithotripsy remains a concern, which may result in incomplete stone clearance. We describe a new technique of PCNL termed "Superperc", that utilizes suction to remove all the fragments and maintain one-way flow...
January 2017: Indian Journal of Urology: IJU: Journal of the Urological Society of India
https://www.readbyqxmd.com/read/28179200/laparoscopic-management-of-abdominal-pregnancy
#15
Francesco Cosentino, Cristiano Rossitto, Luigi Carlo Turco, Salvatore Gueli Alletti, Carmine Vascone, Lavinia Di Meglio, Giovanni Scambia, Mario Malzoni
OBJECTIVE: To illustrate the laparoscopic surgical management of a particular localization of extrauterine pregnancy misdiagnosed until 12 weeks gestational age, complicated by hemoperitoneum and abortion. DESIGN: Canadian Task Force III on the Periodic Health Examination's Levels of Evidence. SETTING: The prevalence of ectopic pregnancy among women presenting to an emergency department with first trimester bleeding, pain, or both ranges from 1% to 16% [1]...
February 4, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28158159/full-endoscopic-assisted-lumbar-decompressive-surgery-performed-in-an-outpatient-ambulatory-facility-report-of-5-years-of-complications-and-risk-factors
#16
Solomon Kamson, Andrea M Trescot, Paul D Sampson, Yiyi Zhang
BACKGROUND: Minimally invasive surgery (MIS) technique is becoming the standard tissue sparing approach for decompression of lumbar central and lateral recess stenosis, intervertebral disc herniation, or any situation that would have required extensive open decompression laminectomy. Full-endoscopic or arthroscopic assisted surgery is arguably the "ultra-MIS" approach to lumbar spinal pathology. Age and body mass index (BMI) are significant risk factors to be considered in full-endoscopic assisted ultra-MIS...
February 2017: Pain Physician
https://www.readbyqxmd.com/read/28088212/ultrasensitive-detection-of-oncogenic-human-papillomavirus-in-oropharyngeal-tissue-swabs
#17
Andre Isaac, Morris Kostiuk, Han Zhang, Cameron Lindsay, Fawaz Makki, Daniel A O'Connell, Jeffrey R Harris, David W J Cote, Hadi Seikaly, Vincent L Biron
BACKGROUND: The incidence of oropharyngeal squamous cell carcinoma (OPSCC) caused by oncogenic human papillomavirus (HPV) is rising worldwide. HPV-OPSCC is commonly diagnosed by RT-qPCR of HPV E6 and E7 oncoproteins or by p16 immunohistochemistry (IHC). Droplet digital PCR (ddPCR) has been recently reported as an ultra-sensitive and highly precise method of nucleic acid quantification for biomarker analysis. To validate the use of a minimally invasive assay for detection of oncogenic HPV based on oropharyngeal swabs using ddPCR...
January 14, 2017: Journal of Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28052273/current-status-of-exposed-endoscopic-full-thickness-resection-and-further-development-of-non-exposed-endoscopic-full-thickness-resection
#18
REVIEW
Hirohito Mori, Asadur Rahman, Hideki Kobara, Shintaro Fujihara, Noriko Nishiyama, Maki Ayaki, Tae Matsunaga, Masanori Murakami, Tsumomu Masaki
Endoscopic full-thickness resection (EFTR) is a procedure that makes it possible to access the lesions that are on the wall of the digestive tract via the shortest distance through the mouth. Because of the ultra-minimal invasive nature of the treatment, pure EFTR is a highly promising surgical procedure that allows the radical excision of full-thickness layers of digestive tract tumors using only a flexible endoscope. There are 2 types of EFTR methods: exposed and non-exposed. Considering the risks of contracting infection and intraperitoneal dissemination of tumor cells, non-exposed EFTR is an ideal method...
2017: Digestion
https://www.readbyqxmd.com/read/28028577/percutaneous-ultrasound-guided-carpal-tunnel-release-study-upon-clinical-efficacy-and-safety
#19
David Petrover, Jonathan Silvera, Thierry De Baere, Marie Vigan, Antoine Hakimé
OBJECTIVES: To evaluate the feasibility and 6 months clinical result of sectioning of the transverse carpal ligament (TCL) and median nerve decompression after ultra-minimally invasive, ultrasound-guided percutaneous carpal tunnel release (PCTR) surgery. METHODS: Consecutive patients with carpal tunnel syndrome were enrolled in this descriptive, open-label study. The procedure was performed in the interventional radiology room. Magnetic resonance imaging was performed at baseline and 1 month...
April 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/27991632/tissue-factor-specific-ultra-bright-serrs-nanostars-for-raman-detection-of-pulmonary-micrometastases
#20
Tapas R Nayak, Chrysafis Andreou, Anton Oseledchyk, Warren D Marcus, Hing C Wong, Joan Massagué, Moritz F Kircher
Here we demonstrate a novel application of 'surface enhanced resonance Raman scattering nanoparticles' (SERRS NPs) for imaging breast cancer lung metastases with much higher precision than currently feasible. A breast cancer lung metastasis mouse model was established by intravenous injection of LM2 cells. These mice were intravenously administered SERRS NPs conjugated with ALT-836, an anti-tissue factor (TF) monoclonal antibody, and subjected to Raman imaging to visualize the expression of TF both in vivo and ex vivo...
January 19, 2017: Nanoscale
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