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Minimally Invasive Therapy & Allied Technologies: MITAT

Yasuhiro Goda, Hirohito Mori, Hideki Kobara, Tsutomu Masaki
BACKGROUND: Duodenal ESD is considered especially difficult with perforation and bleeding. This study assessed safer duodenal ESD procedures, especially with regard to obtaining a good operation view using a ring-thread method and closure of a post-ESD artificial ulcer. METHODS: From 2013 to 2015, 17 patients who were diagnosed with duodenal adenoma or early duodenal cancer >20 mm in diameter underwent conventional ESD (C group). From 2016 to 2017, 12 patients underwent ring-shaped thread counter traction ESD with hemoclips and/or Over-The-Scope Clip (OTSC) (Ovesco Endoscopy GmbH, Tuebingen, Germany) closure of post ESD artificial ulcer (ring group)...
May 15, 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Selim Misirlioglu, Aysen Boza, Bulent Urman, Cagatay Taskiran
OBJECTIVE: To compare the operation time and performance of two uterine manipulators used for total laparoscopic hysterectomy (TLH). MATERIAL AND METHODS: Design: Retrospective cohort analysis. Design classification: Canadian Task Force Classification II-2. SETTING: Tertiary-care university-based teaching hospital and academic affiliated private hospital. PATIENTS: All consecutive patients who underwent for TLH between January 2014 and June 2017...
May 15, 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Kim Platte, Chantal C J Alleblas, Joanna Inthout, Theodoor E Nieboer
BACKGROUND: The star-track test has been assessed as valid and reliable to measure manual dexterity in the context of open surgery. We aimed to determine the construct validity and test-retest reliability of the star-track test for manual dexterity in a laparoscopic setting. MATERIAL AND METHODS: The star-track test was performed in a laparoscopic box trainer. To determine construct validity an open-label, randomized four-period crossover trial was conducted. Alongside a baseline (non-interventional) measurement, interventions involved: physical fatigue, mental stress and a combination of these...
May 15, 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Ioannis Karakitsios, Senay Mihcin, Andreas Melzer
PURPOSE: Reference-less MR thermometry can be a promising technique for temperature mapping during liver treatment with Magnetic Resonance-guided Focused Ultrasound (MRgFUS), as it is more robust to breathing motion than Proton Resonance Frequency MR thermometry. However, there is a lack of a pre-clinical model for repeatable testing of reference-less thermometry. The purpose of this work was to verify the explanted Thiel embalmed human liver and whole Thiel embalmed human cadaver for application of a custom made reference-less thermometry algorithm during MRgFUS sonication...
May 15, 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Yetkin Karasu, Burak Akselim
BACKGROUND: The aim of this study was to compare single-incision laparoscopic surgery (SILS) and conventional laparoscopy in ectopic pregnancies accompanied by severe hemoperitoneum. MATERIAL AND METHODS: The main outcome measures were duration of surgery, intraoperative bleeding quantity, complications, post-operative pain scores, additional analgesic requirements, and length of hospital stay. RESULTS: A total of 53 women, 28 in the conventional laparoscopy group and 25 in the SILS group, participated in the study...
May 9, 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Yoshitaka Inaba, Yasuaki Arai, Miyuki Sone, Takeshi Aramaki, Keigo Osuga, Hayao Tanaka, Kenichi Kanemasa
PURPOSE: A steerable microcatheter provided with a mechanism on the handle for changing the direction of the catheter tip was developed by Sumitomo Bakelite and evaluated in a clinical trial before introduction into clinical use. MATERIAL AND METHODS: The steerable microcatheter has a 2.4F/2.9-F external diameter (distal/proximal portion) and a 0.021-inch internal diameter with a dial on the proximal portion for moving the tip. In patients scheduled to undergo selective transarterial procedures, selective arteriography of target arterial branches chosen by the evaluator was performed using the steerable microcatheter during the procedure...
April 27, 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Pall Jens Reynisson, Håkon Olav Leira, Thomas Langø, Geir Arne Tangen, Peter Hatlen, Tore Amundsen, Erlend Fagertun Hofstad
OBJECTIVE: Endoluminal visualization in virtual and video bronchoscopy lacks information about the surrounding structures, and the traditional 2 D axial, coronal and sagittal CT views can be difficult to interpret. To address this challenge, we previously introduced a novel visualization technique, Anchored to Centerline Curved Surface, for navigated bronchoscopy. The current study compares the ACCuSurf to the standard ACS CT views as planning and guiding tools in a phantom study. MATERIAL AND METHODS: Bronchoscope operators navigated in physical phantom guided by virtual realistic image data constructed by fusion of CT dataset of phantom and anonymized patient CT data...
April 27, 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Bin He, Shujun Xie, Jing Wang, Chao Xu, Yingdelong Mao, Shuogui Xu
STUDY DESIGN: Randomized controlled trials of conventional and laser-navigated technology techniques for balloon kyphoplasty were carried out. OBJECTIVE: To evaluate the effectiveness of a new laser navigation system in reducing the radiation dose in balloon kyphoplasty procedures. MATERIAL AND METHODS: Sixty-seven randomized controlled trials involving a total of 75 lumbar vertebrae were treated. Thirty-four vertebrae were treated by regular fluoroscopic imaging alone, and the other 41 vertebrae were treated using the new laser navigation system...
April 27, 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Yang Wang, Liang Ma, Shoupeng Sheng, Zhuhui Yuan, Jiasheng Zheng, Wei Li
AIM: This study aimed to investigate the safety and efficacy of combination therapy of transcatheter arterial chemoembolization (TACE) and CT-guided percutaneous partial hepatic segment ablation. MATERIAL AND METHODS: Liver cancer patients undergoing TACE plus partial segment ablation from 2012 to 2016 were retrospectively analyzed. Patient characteristics were collected. TACE was performed for all patients before ablation. After ablation, CT imagings were used to evaluate treatment and follow-up...
April 19, 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Daniele Bissacco, Silvia Stegher, Fabio Massimo Calliari, Marco Piercarlo Viani
BACKGROUND: To review published evidence regarding an n-butyl-cyanoacrylate (NBCA) injection device for great (GSV) and small (SSV) saphenous vein incompetence in terms of occlusion rate, postoperative complications and quality of life improvement. MATERIAL AND METHODS: International bibliographic databases (PubMed, EMBASE, Scopus) were searched to identify possible target articles. The only inclusion criterion was the use of the Variclose® system (Biolas, Ankara, Turkey) for superficial vein insufficiency...
April 19, 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Noam Shussman, Liat Appelbaum, Gad Marom, Lisandro Luques, Ram Elazary, Mahmoud Abu-Gazala, Alon J Pikarsky, Yoav Mintz
INTRODUCTION: Recently, magnetic solutions have been proposed to minimize surgical invasiveness. These are comprised of deployable instruments containing magnets which are inserted into the abdominal cavity through a single access point. The manipulation of the internal elements occurs via magnets held on the external surface of the abdominal wall. This technology relies on the magnetic force between the magnets, which is inversely related to the abdominal wall thickness (AWT). The aim of this study was to establish the expected change in AWT from before and after initiation of pneumoperitoneum...
April 4, 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Sara Sinceri, Raffaella Berchiolli, Michele Marconi, Roberto Cioni, Vincenzo Ferrari, Mauro Ferrari, Andrea Moglia, Marina Carbone
AIM: In recent years the interest in structured training programs in endovascular surgical procedures has increased. In this study we assess face, content, and construct validity of a simulator to teach basic skills of endovascular surgery. MATERIAL AND METHODS: A cohort of 21 medical students, 26 residents, and 14 expert surgeons participated in the study. Experts assessed face and content validity. Then, they executed four tasks once, while medical students and residents were allowed two attempts to reach a five-minute threshold under expert supervision...
April 1, 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Cristina Remondi, Francesco Sesti, Giuseppe Sorrenti, Giovannella Venezia, Roberto Sorge, Adalgisa Pietropolli, Beatrice Silvi, Emilio Piccione
OBJECTIVE: The aim of this study was to compare 22 Fr unipolar resectoscope with the traditional 26 Fr unipolar resectoscope in endometrial polypectomy performed under paracervical block anesthesia. METHODS: The trial took place in Gynecologic Unit, Department of Surgery, Tor Vergata University Hospital, Rome. Inclusion criteria were: diagnosis of endometrial polyps <3 cm at office hysteroscopy; agreement of patients to perform surgery under paracervical block anesthesia but not in office setting...
March 15, 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Jaime Ruiz-Tovar, José Luis Muñoz, Pablo Royo, Manuel Duran, Elisabeth Redondo, Jose Manuel Ramirez
INTRODUCTION: The essence of Enhanced Recovery After Surgery (ERAS) programs is the multimodal approach, and many authors have demonstrated safety and feasibility in fast track bariatric surgery. According to this concept, a multidisciplinary ERAS program for bariatric surgery has been developed by the Spanish Fast Track Group (ERAS Spain). The aim of this study was to analyze the initial implementation of this Spanish National ERAS protocol in bariatric surgery, comparing it with a historical cohort receiving standard care...
March 8, 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Zhen-Bo Ouyang, Song Quan
No abstract text is available yet for this article.
March 5, 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Tichun Wang, Haiying Tang, Zhengxiang Xie, Shixiong Deng
Uterine fibroids are extremely common uterine neoplasms. However, whether robotic-assisted laparoscopic myomectomy (RALM) is superior to laparoscopic myomectomy (LM) or abdominal myomectomy (AM) is still debatable. Consequently, we aimed to compare the three currently major surgical techniques used in patients with uterine fibroids. We searched the PubMed, the Cochrane Library, MEDLINE, Embase, and Web of Science databases up to April 22, 2017. The meta-analysis included 20 studies involving 2852 patients. The number of complications [odd ratio (OR) 0...
February 28, 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Daniel Gnutzmann, Nikolas Kortes, Migle Sumkauskaite, Anne Schmitz, Karl-Heinz Weiss, Boris Radeleff
Hepatocellular carcinoma (HCC) is the fifth most common cancer worldwide. Only 30-40% of patients diagnosed with HCC are candidates for curative treatment options. The remaining majority of patients undergo local, regional or systemic palliative therapies. Transvascular therapy of HCC takes advantage of the fact that hypervascularized HCCs receive their main perfusion from the hepatic artery. In this context transvascular therapy describes different therapies: bland embolization (transarterial embolization, TAE), cTACE (conventional transarterial chemoembolization), DEB-TACE (TACE with drug-eluting beads, DEB) and SIRT (selective internal radiation therapy, radioembolization)...
April 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Lei Zuo, Chao Sun, Jian Yang, Bing Liu, Mengyao Zhou, Ruiqi Guo, Shiqiang Yu, Junbo Ge, Lize Xiong, Liwen Liu
A 70-year-old woman presented with severe hypertrophic obstructive cardiomyopathy (HOCM) (maximum ventricular septum thickness of 28 mm, peak pressure gradient (PG) in the left ventricular outflow tract (LVOT) of 153 mmHg). We performed percutaneous trans-apex intra-septal radiofrequency ablation (PTAISRA) of the interventricular septum under guidance of transthoracic echocardiography. At six-months follow up, the symptoms were significantly relieved; the septal thickness was reduced to 18 mm and the peak LVOT PG reduced to 44 mmHg...
April 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Giuseppe Gatti, Stefano Poli, Bernardo Benussi, Rossana Bussani, Annamaria Iorio, Marco Confalonieri, Marco Milo, Irena Tavcar, Aniello Pappalardo, Gianfranco Sinagra
In a 23-year-old man having myocarditis in the context of eosinophilic granulomatosis with polyangiitis, a mobile left ventricular apical thrombus was found with transthoracic echocardiography. Its surgical removal was established because there were no signs of resizing after effective intravascular anticoagulation therapy. Surgery was carried out via a median sternotomy with cardiopulmonary bypass. The site of endocardial implantation of the thrombus was identified with epicardial ultrasonography scan. The trans-aortic approach was adopted to avoid complications such as ventricular dysfunction and arrhythmias secondary to ventricular incision...
April 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Sogol Givehchi, Yin How Wong, Chai Hong Yeong, Basri Johan Jeet Abdullah
PURPOSE: To investigate the effect of radiofrequency ablation (RFA) electrode trajectory on complete tumor ablation using computational simulation. MATERIAL AND METHODS: The RFA of a spherical tumor of 2.0 cm diameter along with 0.5 cm clinical safety margin was simulated using Finite Element Analysis software. A total of 86 points inside one-eighth of the tumor volume along the axial, sagittal and coronal planes were selected as the target sites for electrode-tip placement...
April 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
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