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Minimally Invasive Therapy & Allied Technologies: MITAT

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https://www.readbyqxmd.com/read/28429616/advanced-surgical-technique-for-invasive-fungal-sinusitis-endoscopic-orbit-sinus-combined-approach
#1
Kunihiro Nishimura, Yasuhiro Takahashi, Yuka Yamagishi, Shinya Banno, Yasue Uchida, Tohru Tanigawa, Munekazu Naito, Hirohiko Kakizaki, Hiromi Ueda, Tetsuya Ogawa
BACKGROUND: Invasive fungal sinusitis is usually associated with poor prognosis, but no clear guidelines have been established for surgical treatment. Here, we report the development and application of the endoscopic orbit-sinus combined approach (EOSCA), a novel surgical technique to approach the nasal cavity and orbit concurrently, in patients with invasive fungal sinusitis with orbital infiltration. MATERIAL AND METHODS: Two patients with invasive fungal sinusitis infiltrating the orbit underwent EOSCA...
April 21, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28429602/endoscopic-treatment-of-symptomatic-fibroids-at-reproductive-age-and-beyond
#2
Khulkar Abdusattarova, Liselotte Mettler, Ibrahim Alkatout, Astrid Dempfle
OBJECTIVES: To evaluate the feasibility of endoscopic treatment of symptomatic uterine fibroids based on patient and fibroid characteristics in reproductive, pre-menopausal and post-menopausal women. MATERIAL AND METHODS: The medical records of women with symptomatic uterine fibroids who underwent surgical procedures from 2010 to 2015 were retrospectively reviewed. RESULTS: A total of 819 patients, of which 710 (86.6%) underwent endoscopic procedures...
April 21, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28417678/changes-in-peripheral-blood-t-cell-balance-after-percutaneous-tumor-ablation
#3
Haruyuki Takaki, Naoko Imai, Contessa T Thomas, Koichiro Yamakado, Yarmohammadi Hooman, Etay Ziv, Govindarajan Srimathveeravalli, Constantinos T Sofocleous, Stephen B Solomon, Joseph P Erinjeri
PURPOSE: To evaluate the changes in T-cell balance in peripheral blood following percutaneous tumor ablation. MATERIAL AND METHODS: Patients underwent thermal ablation including radiofrequency (n = 9) and microwave ablation (n = 5), or cryoablation (n = 5). Target tumors were located in the lung (n = 7), soft tissue (n = 5), liver (n = 4), and bone (n = 3). Patient peripheral blood samples were collected before and within 14 days after ablation...
April 18, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28417650/assessment-potential-of-a-new-suture-simulator-in-laparoscopic-surgical-skills-training
#4
Tomohira Takeoka, Shuji Takiguchi, Munenori Uemura, Yasuhiro Miyazaki, Tsuyoshi Takahashi, Yukinori Kurokawa, Tomoki Makino, Makoto Yamasaki, Masaki Mori, And Yuichiro Doki
BACKGROUND: The skills necessary for performing effective laparoscopic suturing are difficult to acquire; as a result, simulators for learning these skills are rapidly becoming integrated into surgical training. The aim of the study was to verify whether a new hybrid simulator has the potential to measure skill improvement in young, less experienced gastroenterological surgeons. MATERIAL AND METHODS: The study included 12 surgeons (median age, 29 (27-38)] years; 11 men (91...
April 18, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28378603/partial-renal-resection-by-laparonewpro-in-vivo-open-and-laparoscopic-study-in-an-animal-model
#5
Piero Rossi, Mauro Montuori, Pierluigi Bove, Adriano De Majo, Edoardo Ricciardi, Maurizio Mattei, Roberta Bernardini, Luigino Calzetta, Paolo Mauti, Lorenzo Intini, Valentino Quattrini, Carlo Chiaramonte, Alessandro Mauriello, Giuseppe Vespasiani
INTRODUCTION: The aim of this research project was to test an incremental bipolar radiofrequency generator with open and laparoscopic inline electrode probe for partial renal resection without vascular clamping. MATERIAL AND METHODS: Sixteen polar resections with clamping and six without were performed in four pigs in the acute phase. Three pigs underwent laparoscopic polar resection and were live housed for ten days and reoperated to verify the presence of hematic and urinary collection and the condition of the renal edge...
April 5, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28367667/faster-acquisition-of-laparoscopic-skills-in-virtual-reality-with-haptic-feedback-and-3d-vision
#6
Kristine Hagelsteen, Anders Langegård, Adam Lantz, Mikael Ekelund, Magnus Anderberg, Anders Bergenfelz
BACKGROUND: The study investigated whether 3D vision and haptic feedback in combination in a virtual reality environment leads to more efficient learning of laparoscopic skills in novices. MATERIAL AND METHODS: Twenty novices were allocated to two groups. All completed a training course in the LapSim(®) virtual reality trainer consisting of four tasks: 'instrument navigation', 'grasping', 'fine dissection' and 'suturing'. The study group performed with haptic feedback and 3D vision and the control group without...
April 3, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28349758/use-of-natural-user-interfaces-for-image-navigation-during-laparoscopic-surgery-initial-experience
#7
Francisco M Sánchez-Margallo, Juan A Sánchez-Margallo, José L Moyano-Cuevas, Eva María Pérez, Juan Maestre
BACKGROUND: Surgical environments require special aseptic conditions for direct interaction with the preoperative images. We aim to test the feasibility of using a set of gesture control sensors combined with voice control to interact in a sterile manner with preoperative information and an integrated operating room (OR) during laparoscopic surgery. MATERIAL AND METHODS: Two hepatectomies and two partial nephrectomies were performed by three experienced surgeons in a porcine model...
March 28, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28326904/validation-of-psychomotor-tasks-by-simbionix-lap-mentor-simulator-and-identifying-the-target-group
#8
Mohamed Elessawy, Arne Wewer, Veronika Guenther, Thorsten Heilmann, Christel Eckmann-Scholz, Christian Schem, Nicolai Maass, Karl-Günter Noe, Liselotte Mettler, Ibrahim Alkatout
BACKGROUND: This study addresses target group reliability and task validity for training on a laparoscopic simulator. MATERIAL AND METHODS: Data were collected on 64 participants prospectively at the Department of OB/GYN, University Hospitals Schleswig-Holstein, Campus Kiel. The Simbionix LAP Mentor for laparoscopic simulation was used to test trainees. Each participant received a questionnaire to clarify his/her medical position, surgical experience, and previous virtual reality (VR) experience, including video gaming experience...
March 22, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28318365/effects-of-tgf-%C3%AE-on-uterine-fibroids-of-women-of-childbearing-age-and-uterine-artery-embolization
#9
Tao Shen, Hongjian Shi, Qiang Xu, Qian Song, Yuanfen Xu, Youhua Huang
PURPOSE: To evaluate the effects of transforming growth factor-β (TGF-β) on uterine fibroids of women of childbearing age and uterine artery embolization (UAE) using Embosphere microspheres. MATERIAL AND METHODS: A total of 128 eligible women were randomly divided into an experimental group and a control group (n = 64) who received UAE using Embosphere microspheres and panhysterectomy, respectively. Another 128 healthy women receiving physical examination in the same period were also enrolled...
March 20, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28290726/comparison-of-single-incision-and-conventional-laparoscopic-surgery-for-benign-adnexal-masses
#10
Yetkin Karasu, Burak Akselim, Duygu Kavak Cömert, Yusuf Ergün, Kahraman Ülker
BACKGROUND: Our aim was to compare single incision and conventional laparoscopic surgeries performed for benign adnexal masses with regard to their intraoperative characteristics and postoperative pain levels. MATERIAL AND METHODS: The main outcome measures were laparoscopic entry time, total operation time, amount of bleeding, intraoperative complications, post-operative pain scores, additional analgesic requirements, and length of hospital stay. RESULTS: A total of 71 women, 39 in the conventional laparoscopy group and 32 in the SILS group, participated in the study...
March 14, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28281403/effectiveness-of-endoscopic-balloon-dilatation-in-grade-2a-and-2b-esophageal-burns-in-children
#11
Hakan Taşkinlar, Gökhan Berktuğ Bahadir, Doğakan Yiğit, Cankat Erdoğan, Dinçer Avlan, Ali Nayci
PURPOSE: To evaluate the predictability of the initial endoscopic evaluation of the effectiveness of endoscopic balloon dilatation (EBD) in childhood esophageal strictures caused by corrosive ingestion. MATERIAL AND METHODS: Medical records of 635 endoscopies caused by corrosive ingestion between January 2000 and December 2015 in children between the ages of 0 and 18 years were retrospectively analyzed. Among them, five children with grade 2a and 15 with grade 2 b who developed esophageal strictures were evaluated for the effectiveness of endoscopic balloon dilatation...
March 10, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28281366/artificial-pneumothorax-a-safe-and-simple-method-to-relieve-pain-during-microwave-ablation-of-subpleural-lung-malignancy
#12
Xiaowei Hou, Xingjun Zhuang, Haiwen Zhang, Kai Wang, Yuanxin Zhang
BACKGROUND: Microwave ablation has been extensively used for eliminating pulmonary tumors; however, it is usually associated with severe pain under local anesthesia. Decreasing the power and shortening the ablation time can help to relieve the pain; however, this leads to incomplete ablation and an increasing recurrence rate. This research aims to employ an artificial pneumothorax to increase both the curative effect and pain relief during the ablation procedure. MATERIAL AND METHODS: From July 2013 to January 2015, nine patients presenting with 10 subpleural lung tumors (age: 44-78 years) with a high possibility of severe pain underwent the artificial pneumothorax during microwave ablation...
February 14, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28151035/long-term-efficacy-and-safety-of-a-nitinol-closure-clip-system-for-anal-fistula-treatment
#13
Sebastian Dango, Fillimon Antonakis, Dirk Schrader, Arkadiy Radzikhovskiy, Michael B Ghadimi, Rudolf Hesterberg
INTRODUCTION: Treatment failure of anal fistula results in high re-occurrence rate. MATERIAL AND METHODS: Efficacy and safety of a nitinol closure clip system (bear-claw clip) were evaluated for anal fistulae treatment in a 36-month long-term follow-up study. RESULTS: Twenty-two patients were included. No patient had been treated with a bear-claw clip system before. All patients were fully continent before treatment. Follow-up time was 36 months (range 19-48 months)...
February 2, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28151029/radiofrequency-induced-thermotherapy-rfitt-in-a-porcine-liver-model-and-ex-vivo-great-saphenous-vein
#14
George E Badham, Scott J Dos Santos, Mark S Whiteley
AIMS: To investigate the thermal spread achieved in porcine liver when using an optimised radiofrequency ablation protocol and correlate findings with the effects seen in ex vivo great saphenous vein (GSV), in order to justify clinical use with the new treatment protocol. MATERIAL AND METHODS: Porcine liver and GSV sections were treated with radiofrequency-induced thermotherapy (RFiTT) using the following settings: 20 W at 1 s/cm (linear endovenous energy density; LEED 20 J/cm), 18 W at 1 s/cm (LEED 18 J/cm), 18 W at 3 s/cm (LEED 54 J/cm), 6 W interrupted pull-back 6 s stationary every 0...
February 2, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28145160/the-thunderbeat-system-for-tissue-dissection-and-vascular-control-in-laparoscopic-splenectomy
#15
Silvia Ceccanti, Ilaria Falconi, Simone Frediani, Alessandro Boscarelli, Marco Catani, Denis A Cozzi
No abstract text is available yet for this article.
February 1, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28145148/preliminary-experimental-study-on-splenic-hemodynamics-of-radiofrequency-ablation-for-the-spleen
#16
Yasutaka Baba, Sadao Hayashi, Kohei Nagasato, Michiyo Higashi, Takashi Yoshiura
PURPOSE: To test the splenic blood flow change after radiofrequency ablation (RFA) of the spleen in a porcine experimental model. MATERIAL AND METHODS: Six pigs underwent RFA of the spleen via laparotomy. During the procedure of RFA, clamping of splenic artery (one) and both splenic artery/vein (one) was also performed. Measurement of blood flow of both splenic artery (SA) and splenic vein (SV) with flow-wire at pre- and post-RFA of the spleen was also performed...
February 1, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28350273/a-randomized-comparative-trial-of-otsc-and-padlock-for-upper-gi-hemostasis-in-a-standardized-experimental-setting
#17
Ruediger L Prosst, Thomas Kratt
INTRODUCTION: Upper gastrointestinal bleeding (UGIB) is the key emergency situation in clinical endoscopy and is traditionally treated with injection, thermal or through the scope clipping therapy. Mortality rates are in the range of 8-10% and demand new treatment approaches. The Over-The-Scope Clip (OTSC(®)) has been described as a very effective hemostatic device in UGIB. We compared OTSC with the Padlock™ device in an established pre-clinical setting. MATERIAL AND METHODS: Our test-bed consisted of the biohybrid EASIE model using soft silicone tubes, tunneled into the gastric wall and surfacing at a mucosa defect, representing the bleeding site...
April 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28084101/retrograde-venography-during-balloon-occluded-retrograde-transvenous-obliteration-of-gastric-varices
#18
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...
February 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/27686414/feasibility-of-electromagnetically-guided-transjugular-intrahepatic-portosystemic-shunt-procedure
#19
Peter Isfort, Tobias Penzkofer, Christoph Wilkmann, Hong-Sik Na, Christian Kotzlowski, Nobutake Ito, Joachim Georg Pfeffer, Stefan Bisplinghoff, Sabine Osterhues, Andreas Besting, Jorge Gooding, Thomas Schmitz-Rode, Christiane Kuhl, Andreas Horst Mahnken, Philipp Bruners
OBJECTIVES: To develop an electromagnetic navigation technology for transjugular intrahepatic portosystemic shunt (TIPS) creation and translate it from phantom to an in-vivo large animal setting. MATERIAL AND METHODS: A custom-designed device for TIPS creation consisting of a stylet within a 5 French catheter as well as a software prototype were developed that allow real-time tip tracking of both stylet and catheter using an electromagnetic tracking system. Feasibility of navigated TIPSS creation was tested in a phantom by two interventional radiologists (A/B) followed by in-vivo testing evaluation in eight domestic pigs...
February 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/27659094/technical-aspects-of-transurethral-plasmakinetic-enucleation-and-resection-of-the-prostate-for-benign-prostatic-hyperplasia
#20
Yang Yu, Guantao Lou, Chen Shen, Sheng Guan, Wei Wang, Bo Yang
TUERP, which is based on TURP, technically has been proven to be safe and effective with reduced complication rates. Due to the lack of systematic pre-clinical training, the surgery is learnt only inside the operative theatre in the majority of the Chinese medical centers. It is also known to have a steep learning curve, and very few articles have addressed the technical aspects of TUERP. MATERIAL AND METHODS: The videos of 91 cases of bipolar transurethral enucleation and resection of the prostate, which were performed by one urological surgeon in our department from August 2013 to January 2016, were retrospectively analyzed...
February 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
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