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Minimally Invasive Therapy & Allied Technologies: MITAT

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https://www.readbyqxmd.com/read/28084155/three-year-postoperative-outcomes-between-mis-and-conventional-tlif-in1-segment-lumbar-disc-herniation
#1
You Lv, Jingyang Chen, Jinchuan Chen, Yuling Wu, Xiangyang Chen, Yi Liu, Zhaoming Chu, Luxin Sheng, Rujie Qin, Ming Chen
AIM: The aim of this study is to assess the long-term clinical and radiological outcomes between minimally invasive (MIS) and conventional transforaminal lumbar interbody fusion (TLIF) in treating one-segment lumbar disc herniation (LDH). MATERIAL AND METHODS: One-hundred and six patients treated by MIS-TLIF (50 cases) or conventional TLIF (56 cases) were included. Perioperative results were evaluated. Clinical outcomes were compared preoperatively and postoperatively...
January 13, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28084143/a-portable-surgical-navigation-device-to-display-resection-planes-for-bone-tumor-surgery
#2
Hyunseok Choi, Yeongkyoon Park, Seongpung Lee, Hogun Ha, Sungmin Kim, Hwan Seong Cho, Jaesung Hong
INTRODUCTION: Surgical navigation has been used in musculoskeletal tumor surgical procedures to improve the precision of tumor resection. Despite the favorable attributes of navigation-assisted surgery, conventional systems do not display the resection margin in real time, and preoperative manual input is required. In addition, navigation systems are often expensive and complex, and this has limited their widespread use. In this study, we propose an augmented reality surgical navigation system that uses a tablet personal computer with no external tracking system...
January 13, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28084141/routine-clinical-application-of-virtual-reality-in-abdominal-surgery
#3
Gianluca Sampogna, Raffaele Pugliese, Marco Elli, Angelo Vanzulli, Antonello Forgione
BACKGROUND: The advantages of 3D reconstruction, immersive virtual reality (VR) and 3D printing in abdominal surgery have been enunciated for many years, but still today their application in routine clinical practice is almost nil. We investigate their feasibility, user appreciation and clinical impact. MATERIAL AND METHODS: Fifteen patients undergoing pancreatic, hepatic or renal surgery were studied realizing a 3D reconstruction of target anatomy. Then, an immersive VR environment was developed to import 3D models, and some details of the 3D scene were printed...
January 13, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28084136/evidence-based-cross-validation-for-acoustic-power-transmission-for-a-novel-treatment-system
#4
Senay Mihcin, Jan Strehlow, Daniel Demedts, Michael Schwenke, Yoav Levy, Andreas Melzer
INTRODUCTION: The novel Trans-Fusimo Treatment System (TTS) is designed to control Magnetic Resonance guided Focused Ultrasound (MRgFUS) therapy to ablate liver tumours under respiratory motion. It is crucial to deliver the acoustic power within tolerance limits for effective liver tumour treatment via MRgFUS. Before application in a clinical setting, evidence of reproducibility and reliability is a must for safe practice. MATERIALS AND METHODS: The TTS software delivers the acoustic power via ExAblate-2100 Conformal Bone System (CBS) transducer...
January 13, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28084101/retrograde-venography-during-balloon-occluded-retrograde-transvenous-obliteration-of-gastric-varices
#5
Rika Yoshimatsu, Takuji Yamagami, Masaki Ishikawa, Kenji Kajiwara, Wataru Fukumoto, Hiroshi Aikata, Kazuaki Chayama, Yasutaka Baba, Kazuo Awai
PURPOSE: The purpose of this study was to evaluate changes in thrombosis in gastric varices. MATERIAL AND METHODS: Fourteen patients were studied who underwent balloon-occluded retrograde transvenous obliteration (B-RTO) for gastric varices with a gastrorenal shunt. The B-RTO catheter was retained overnight in all patients. Balloon-occluded retrograde venography (B-RTV) was performed to evaluate the degree of thrombus formation. This evaluation was done twice during the overnight B-RTO procedure: A few hours after the procedure and on the following day...
January 13, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/27981866/influence-of-videogames-and-musical-instruments-on-performances-at-a-simulator-for-robotic-surgery
#6
Andrea Moglia, Vittorio Perrone, Vincenzo Ferrari, Luca Morelli, Ugo Boggi, Mauro Ferrari, Franco Mosca, Alfred Cuschieri
OBJECTIVE: To assess if exposure to videogames, musical instrument playing, or both influence the psychomotor skills level, assessed by a virtual reality simulator for robot-assisted surgery (RAS). MATERIALS AND METHODS: A cohort of 57 medical students were recruited: playing musical instruments (group 1), videogames (group 2), both (group 3), and no activity (group 4); all students executed four exercises on a virtual simulator for RAS. RESULTS: Subjects from group 3 achieved the best performances on overall score: 527...
December 16, 2016: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/27869517/ct-fluoroscopy-guided-percutaneous-drainage-comparison-of-the-one-step-and-the-seldinger-techniques
#7
Kenji Kajiwara, Takuji Yamagami, Masaki Ishikawa, Rika Yoshimatsu, Yasutaka Baba, Yuko Nakamura, Wataru Fukumoto, Kazuo Awai
OBJECTIVE: To evaluate the one step technique compared with the Seldinger technique in computed tomography (CT) fluoroscopy-guided percutaneous drainage of abdominal and pelvic abscess. MATERIAL AND METHODS: Seventy-six consecutive patients (49 men, 27 women; mean age 63.5 years, range 19-87 years) with abdominal and pelvic abscess were included in this study. Drainages were performed with the one step (n = 46) and with the Seldinger (n = 48) technique between September 2012 and June 2014...
December 16, 2016: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/27869520/outpatient-single-port-laparoscopic-percutaneous-morgagni-hernia-repair-assisted-by-an-optical-forceps
#8
Engin Yilmaz, Cagatay Evrim Afsarlar, Derya Erdogan, Ismet Faruk Ozguner
Morgagni hernia is a relatively rare form of diaphragmatic hernia in the pediatric age group and it is conventionally treated with open surgical repair. Minimal access surgery is currently being adapted for many procedures in children. However, to date just a few techniques have been described relevant to minimal access surgical repair of Morgagni hernia in children. Herein, we report two cases of Morgagni hernia repaired by a new single-port laparoscopic technique assisted by an optical forceps. Two infants, a one-year-old boy and an eight-month-old girl, were operated with this technique in just 26 and 35 min and were discharged with oral analgesic prescription by postoperative hour 5 and 8, respectively...
December 8, 2016: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/27885870/transanal-total-mesorectal-excision-for-restorative-coloproctectomy-in-an-obese-high-risk-patient-with-colitis-associated-carcinoma
#9
Laura Isabel Hanke, Fabian Bartsch, Sebastian Försch, Florian Heid, Hauke Lang, Werner Kneist
Transanal total mesorectal excision (TaTME) offers great potential for the treatment of malign and benign diseases. However, laparoscopic-assisted TaTME in ulcerative colitis has not been described in more than a handful of patients. We present a 47-year-old highly comorbid female patient with an ulcerative colitis-associated carcinoma of the ascending colon and steroid-refractory pancolitis. A two-stage restorative coloproctectomy including right-sided complete mesocolic excision was conducted. The second step consisted of a successful nerve-sparing TaTME and a handsewn ileal pouch-anal anastomosis...
November 25, 2016: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/27841700/force-model-for-laparoscopic-graspers-implications-for-virtual-simulator-design
#10
K Susmitha Wils, Suresh R Devasahayam, M Manivannan, George Mathew
INTRODUCTION: Laparoscopic graspers limit haptic perception, which in turn leads to tissue damage. Using virtual simulators to train surgeons in handling these instruments would ensure safer grasp. The design of a laparoscopic virtual simulator with force feedback depends on effective implementation of the grasper force model. OBJECTIVE: To develop a laparoscopic grasper tip force model theoretically from grasper mechanics and validate the same experimentally during laparoscopic pinching...
November 14, 2016: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/27830594/a-digital-anatomical-study-of-the-corona-mortis-in-females
#11
Yan Han, Ping Liu, Chunlin Chen, Hui Duan, Lan Chen, Yikai Xu, Ruiying Chen, Hongxin Pan, Chunmei Zhao, Lei Tang
INTRODUCTION: We used an approach different from traditional anatomy to construct a three-dimensional (3D) model of the corona mortis (CMOR) through contrast-enhanced computed tomography (CT) scanning. This will provide an aid for the understanding of the fine anatomy of the CMOR, as well as surgical procedures. MATERIAL AND METHODS: A medical image processing system was used to process computed tomography scanning data collected from 330 cases of female patients...
November 10, 2016: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/27802070/nose-laparoscopic-gastrectomies-for-early-gastric-cancer-may-reduce-morbidity-and-hospital-stay-early-results-from-a-prospective-non-randomized-study
#12
Cristiano Gs Hüscher, Marco Maria Lirici, Cecilia Ponzano
BACKGROUND: Natural Orifice Specimen Extraction - NOSE laparoscopy is a promising technique that avoids mini-laparotomy, possibly reducing postoperative pain, wound infections and hospital stay. Recent systematic reviews have shown that postoperative morbidity associated with laparoscopically assisted gastrectomies is similar to that after open gastrectomies. More specifically, there is no difference in wound infection rate. The study objective was to evaluate whether postoperative morbidity and hospital stay may be reduced by transoral specimen extraction after laparoscopically assisted gastrectomy for early gastric cancer...
November 1, 2016: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/27801607/balloon-occluded-retrograde-transvenous-obliteration-using-a-new-microballoon-for-gastric-varices
#13
Takahiko Mine, Tomohiro Matsumoto, Jun Endo, Kazunobu Hashida, Seiichiro Kojima, Norihito Watanabe, Terumitsu Hasebe
We here present a case involving a complicated type of gastric fundal varices treated by balloon-occluded retrograde transvenous obliteration. A newly developed 1.8-Fr tip coaxial microballoon catheter was successfully advanced into narrow and tortuous varices, and a sclerosant could be infused in a reasonable manner, avoiding reflux into collaterals. Divided injections of sclerosant were performed over two days, via a microballoon catheter that remained inserted overnight with balloon inflation, and the sclerosant could be infused sufficiently in the entirety of the varices...
November 1, 2016: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/27784190/acoustic-characterization-of-thiel-liver-for-magnetic-resonance-guided-focused-ultrasound-treatment
#14
Ioannis Karakitsios, Joyce Joy, Senay Mihcin, Andreas Melzer
BACKGROUND: The purpose of this work was to measure the essential acoustic parameters, i.e. acoustic impedance, reflection coefficient, attenuation coefficient, of Thiel embalmed human and animal liver. The Thiel embalmed tissue can be a promising, pre-clinical model to study liver treatment with Magnetic Resonance-guided Focused Ultrasound (MRgFUS). MATERIAL AND METHODS: Using a single-element transducer and the contact pulse-echo method, the acoustic parameters, i...
October 27, 2016: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/27686287/splenorenal-shunt-via-magnetic-compression-technique-a-feasibility-study-in-canine-and-cadaver
#15
Fei Xue, Jianpeng Li, Jianwen Lu, Haoyang Zhu, Wenyan Liu, Hongke Zhang, Huan Yang, Hongchang Guo, Yi Lv
INTRODUCTION: The concept of magnetic compression technique (MCT) has been accepted by surgeons to solve a variety of surgical problems. In this study, we attempted to explore the feasibility of a splenorenal shunt using MCT in canine and cadaver. MATERIAL AND METHODS: The diameters of the splenic vein (SV), the left renal vein (LRV), and the vertical interval between them, were measured in computer tomography (CT) images obtained from 30 patients with portal hypertension and in 20 adult cadavers...
December 2016: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/27433856/comparison-of-polyvinyl-alcohol-and-tris-acryl-gelatin-microsphere-materials-in-embolization-for-symptomatic-leiomyomas-a-systematic-review
#16
Wenxiao Jiang, Zhaojun Shen, Hui Luo, Xiaoli Hu, Xueqiong Zhu
OBJECTIVE: Use systematic reviews and meta-analyses to assess the effect of polyvinyl alcohol and tris-acryl gelatin microsphere materials in leiomyoma embolization for symptomatic leiomyomas. MATERIAL AND METHODS: We included randomised controlled studies published before January 2015 comparing polyvinyl alcohol and tris-acryl gelatin microsphere materials in uterine leiomyoma embolization for women with symptomatic leiomyomas. The main outcome measures included change of overall quality of life, change of overall symptom severity, changes of uterine and leiomyoma volumes, leiomyoma infarction rate, treatment failure and complications...
December 2016: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/27400135/combined-application-of-laryngoscopy-and-flexible-bronchoscopy-in-endobronchial-foreign-body-extraction
#17
Ning Fang, Le Sun, Yan Zhang, Wei Zhu, Xin Wang
Foreign body aspiration is a life-threatening emergency in children. An 11-year-old girl presented at the emergency department with a case of accidental foreign body aspiration. The patient had symptoms of acute respiratory distress followed by cyanosis of the lips. Radiological examination demonstrated a radiopaque foreign body. Under analgesic and amnestic anesthesia, we extracted the metal bead using alligator forceps, with a direct laryngoscope and a flexible bronchoscope. This method afforded an improved visual access to the operative field and allowed for intra-operative manipulation, thus obviating the need for thoracotomy...
December 2016: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/27384967/comparative-analysis-of-techniques-to-prevent-laparoscopic-fogging
#18
Austin Drysch, Kenneth Schmitt, Brittany Uribe, Renai Yoon, Zhamshid Okhunov, Jaime Landman
PURPOSE: To evaluate the efficiency and efficacy of two common and commercially available methods to resolve lens fogging: a Fluid Warming System (O.R. Solutions, Chantilly, VA) and the Clearify Visualization System (Covidien, Mansfield, MA). MATERIAL AND METHODS: We prospectively evaluated 40 patients undergoing laparoscopic renal procedures with the Fluid Warming System (first 20 cases) and then the Clearify Visualization System (second 20 cases). We utilized the standard Fluid Warming System per a 30-second modified protocol established in our laboratory...
December 2016: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/27333262/endovascular-placement-of-an-extraluminal-arterial-bypass-graft-in-vitro-feasibility-study
#19
Markus Zimmermann, Jochen Pfeffer, Hong-Sik Na, Martin Liebl, Maximilian Schulze-Hagen, Christiane K Kuhl, Peter Isfort, Philipp Bruners
PURPOSE: A novel approach for arterial bypass grafting using exclusively endovascular techniques was established in-vitro in a phantom model. MATERIAL AND METHODS: The experimental setting consisted of a gel-wax phantom with two embedded parallel fluid-filled silicon tubes simulating the superficial femoral vessels. Through an 8-French sheath, a re-entry catheter (OUTBACK(®), Cordis) was placed in the simulated artery and used to puncture the vascular wall. Then a 0...
December 2016: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/27331342/safety-and-economical-innovations-regarding-surgical-treatment-of-fibroids
#20
Ibrahim Alkatout, Liselotte Mettler, Veronika Günther, Nicolai Maass, Christel Eckmann-Scholz, Mohamed Elessawy, Michael Anapolski
Uterine leiomyomas are the most frequent benign tumors of the female genital tract. Fibroids are associated with a variety of clinical problems, e.g. bleeding disorders, bulk-related symptoms or infertility. For women wishing to preserve their uterus, fibroids can be surgically removed by hysteroscopy, laparoscopy or laparotomy. The purpose of our review is to show that hysterectomy offers the only definitive solution. The indication for treatment has to be taken carefully after weighing up alternative treatment methods, such as expectant management, medical treatment or interventional radiologic methods, and after obtaining informed consent...
December 2016: Minimally Invasive Therapy & Allied Technologies: MITAT
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