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Minimally Invasive Therapy & Allied Technologies: MITAT

Shan Zhao, Li Yan, Zhiyi Zhao, Ming Hou, Fengnian Rong
BACKGROUND: Chronic renal failure (CRF) in women is frequently accompanied by endocrine disturbances leading to abnormal uterine bleeding (AUB). Recurrence of AUB is the most significant problem following current treatment approaches. Laparoscopic hysterectomy (LH) might be taken into consideration for patients who no longer want to preserve their fertility; however, these patients are in high-risk groups for minimally invasive surgery. Our goal was to determine whether LH is a good option for the treatment of AUB in patients with CRF when the associated risks are carefully managed...
September 11, 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Saseem Poudel, Yo Kurashima, Yo Kawarada, Yoshihiro Murakami, Kimitaka Tanaka, Hiroshi Kawase, Toshiaki Shichinohe, Satoshi Hirano
BACKGROUND: Laparoscopic inguinal hernia repair is considered technically difficult. Although a simulation-based curriculum has been developed to help trainees, access to simulation training outside North America is limited. This study aimed to develop an educational system for the transabdominal preperitoneal (TAPP) approach based on the TAPP checklist, an assessment tool we had developed and validated earlier. MATERIAL AND METHODS: Consensus within the TAPP education working group consisting of local TAPP experts, hernia experts and a surgical educator to develop educational tools and the educational system based on the TAPP checklist...
September 11, 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Sebastian Ruetten, Patrick Hahn, Semih Oezdemir, Xenophon Baraliakos, Georgios Godolias, Martin Komp
BACKGROUND: Infections of the anterior craniocervical junction may require surgery. There are various techniques with individual advantages and disadvantages. This study evaluates the full-endoscopic uniportal technique via the anterior retropharyngeal approach for odontoidectomy, decompression, and debridement. MATERIAL AND METHODS: Three patients with an infection of the anterior craniocervical junction with retrodental involvement were operated on between 2014 and 2016 using the full-endoscopic uniportal technique...
September 4, 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Yoko Usami, Naoki Hirokawa, Masato Saitoh, Hiroki Okuda, Masanori Someya, Tadashi Hasegawa, Yasunari Takakuwa, Koh-Ichi Sakata
PURPOSE: To evaluate the histopathological features of experimental aneurysms embolized with bare platinum, fibered, and bioactive coils. MATERIAL AND METHODS: Twelve experimental aneurysms were constructed in three swine. The aneurysms were divided into four groups and were embolized using a bare platinum coil alone (P group, n = 2), a bioactive coil alone (B group, n = 2), a combination of fibered and bare platinum coils (F/P group, n = 4) and a combination of fibered and bioactive coils (F/B group, n = 4)...
August 16, 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Zhuo Zhao, Zion Tsz Ho Tse
INTRODUCTION: In this study, we hypothesized a disposable low-cost needle clip with a specially designed electromagnetic (EM) tracking sensor. It could be mounted onto 16- to 22-gauge needles, allowing the tip of the needle to be tracked in CT or US image-guided procedures using the Aurora EM tracking system. MATERIAL AND METHODS: A 3 D printed EM needle clip case contains a pair of specially designed electromagnetic solenoids, positioned perpendicularly to each other in order to achieve six degrees of freedom for tracking the tip of the needle...
August 16, 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Wataru Nishimoto, Hiroshi Kawahira, Yoshihiro Shimomura, Yuji Nishizawa, Masaaki Ito
BACKGROUND: We developed a surgical knee rest (SKR) that can be used to decrease the stress placed on the lower half of the body when surgeons work in the standing position. We tested the effectiveness of this device in the context of laparoscopic surgery. MATERIAL AND METHODS: Five healthy, right-handed male surgeons participated, and we recorded surface electromyography (sEMG) signals from the two heads of the left and right gastrocnemius (Gc) muscles during laparoscopic resections of colorectal cancer...
July 24, 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Florent Lalys, Simon Esneault, Miguel Castro, Lucas Royer, Pascal Haigron, Vincent Auffret, Jacques Tomasi
PURPOSE: Minimally invasive trans-catheter aortic valve implantation (TAVI) has emerged as a treatment of choice for high-risk patients with severe aortic stenosis. However, the planning of TAVI procedures would greatly benefit from automation to speed up, secure and guide the deployment of the prosthetic valve. We propose a hybrid approach allowing the computation of relevant anatomical measurements along with an enhanced visualization. MATERIAL AND METHODS: After an initial step of centerline detection and aorta segmentation, model-based and statistical-based methods are used in combination with 3 D active contour models to exploit the complementary aspects of these methods and automatically detect aortic leaflets and coronary ostia locations...
July 24, 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...
October 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
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October 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Ibrahim Alkatout
BACKGROUND: The removal of obstacles from the surgical field is a crucial aspect of any procedure in gynecological, urological or visceral laparoscopic surgery. Reliable instruments and skilled assistance are essential for the smooth execution of procedures. Blunt forceps are commonly used to keep tissue away from the operating field. The range of existing instruments has been enhanced by the introduction of laparoscopic retractors. However, no laparoscopic retractor can be used without causing tissue damage...
October 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Mingshuai Wang, Xingyu Mu, Feiya Yang, Yinong Niu, Nianzeng Xing
OBJECTIVE: To evaluate the efficacy and safety of self-retaining barbed suture in renorrhaphy during laparoscopic partial nephrectomy by comparing surgical outcomes in a prospective randomized manner. MATERIAL AND METHODS: From July 2014 to July 2015, a total of 60 patients with T1 renal tumor were randomized into two equal groups: self-retaining barbed suture (SRBS) and conventional absorbable polyglactin suture (non-SRBS group). All patients were treated by retroperitoneal laparoscopic partial nephrectomy...
October 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Baoxian Liu, Chunlin Jiang, Shuling Chen, Guangliang Huang, Yu Wang, Jiaping Li, Ming Xu, Xiaoyan Xie, Ming Kuang
PURPOSE: To retrospectively investigate the efficacy of multipronged ethanol ablation with or without transarterial chemoembolization (TACE) in the treatment of intermediate hepatocellular carcinoma (HCC) (3.1-5.0 cm in diameter) at high-risk locations . MATERIAL AND METHODS: From March 2009 to April 2014, 25 consecutive patients with intermediate HCC who underwent multipronged ethanol ablation combined with TACE were included in the combination treatment group, while 50 patients who underwent multipronged ethanol ablation alone were included in the control group...
October 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Adrian Gonzalez-Aguirre, Anne M Covey, Karen T Brown, Lynn A Brody, F Edward Boas, Constantinos T Sofocleous, Majid Maybody, George I Getrajdman, Joseph P Erinjeri
PURPOSE: The purpose of this study is to evaluate the accuracy of percutaneous fine needle biopsy (FNB) and brush biopsy (BB) at a cancer center. MATERIAL AND METHODS: Retrospective analysis of all bile duct biopsies performed in Interventional Radiology between January 2000 and January 2015 was performed. FNB was performed under real-time cholangiographic guidance using a notched needle directed at the bile duct stricture. BB was performed by advancing a brush across the stricture and moving it back and forth to scrape the stricture...
October 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Jeeyeon Lee, Jin Hyang Jung, Wan Wook Kim, So Hyang Moon, Jae-Hwan Jeong, Ji-Young Park, Ji Yun Jeong, Ho Lee, Ik-Bu Sohn, Chang Hwan Kim, Ho Yong Park
BACKGROUND: The aim of this study was to compare the therapeutic effect of laser ablation using the forward-firing fiber and the multidirectional-firing fiber for breast cancer treatment with pathologic results. MATERIAL AND METHODS: An ex vivo study of laser ablation was conducted using normal breast and breast cancer tissue. Each ablated area was demarcated into three zones, and the temperature was measured. Laser ablations using multidirectional and forward-firing types of fiber were compared regarding the shape, diameter and aspect ratio of the ablated lesions...
October 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Mohammad Sahlabadi, Seyedvahid Khodaei, Kyle Jezler, Parsaoran Hutapea
INTRODUCTION: Most studies to date confirm that any increase in the needle insertion force increases the damage to the tissue. When it comes to brain tissue, even minor damage can cause a long-lasting traumatic brain injury. Thus there is a great demand for innovative minimally invasive needles among the medical community. In our previous studies a novel bioinspired needle design with specially designed barbs was used to perform insertion tests into Polyvinyl chloride (PVC) tissue-mimicking gels, in which it decreased the insertion force by as much as 25%...
October 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Takashi Hanzawa, Tadao Matsunaga, Tomoyuki Koike, Atsushi Kanno, Atsushi Masamune, Katsunori Iijima, Tooru Shimosegawa, Yoichi Haga
INTRODUCTION: Although measuring the pressure of the sphincter of Oddi and the bile duct is considered to be an important examination, called Sphincter of Oddi manometry (SOM), some complications related to the SOM device remain unsolved. MATERIAL AND METHODS: To decrease adverse complications, we developed a 0.46 mm manometry and we performed some in vitro studies. RESULTS: We successfully developed a 0.46 mm SOM. The diameter is the thinnest size used in endoscopic examinations...
August 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Emanuele Sinagra, Stefano Garritano, Salvatore Marco Iacopinelli, Marco Messina, Dario Raimondo, Francesca Rossi, Massimiliano Spada, Guido Martorana, Marcello Giuseppe Spampinato
BACKGROUND AND AIMS: Gallbladder carcinoma is a rare but aggressive malignant neoplasm. The incidence of intra- or post-operative incidental gallbladder carcinoma diagnosis following laparoscopic cholecystectomy is estimated to be 1-2%. Aggressive re-resection is warranted as the majority of patients have residual disease either in the liver or the lymph nodes. However the use of a minimally invasive surgical approach (MISA) to perform a radicalization in these patients has not been investigated yet...
August 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Katherine Jane C Chua, Bruce McLucas
We present a case study of a patient who underwent uterine artery embolization (UAE) using Gelfoam™ (Pfizer, New York, NY, USA) and had a subsequent pregnancy. Our patient, a 38-year-old female (4 Gravida/2 Para), underwent UAE for treatment of symptomatic myoma in September 2005. At the patient's seven-month post procedure visit, she experienced a 43.9% volume reduction in uterine size and 74.5% reduction in volume of the largest fibroid and relief of bulk symptoms and menorrhagia. The patient had a term delivery of healthy twin infants 15 months post embolization...
August 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Jae Chun Park, Gyoo-Sik Jung, Jin Ho Lee, Joong Kyung Kim
Chronic unilateral hematuria (CUH) is characterized by intermittent or continuous gross hematuria that cannot be diagnosed using standard radiology and hematology. The authors report a case of CUH with no discrete lesion at ureteroscopy, successfully treated by selective renal artery embolization. Renal artery embolization could be a treatment option for selected patients with clinically intractable CUH.
August 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
Xuyang Sun, Zhi-Zhu He, Zhong-Shan Deng, Yi-Xin Zhou, Jing Liu
BACKGROUND: Radio-frequency ablation has been an important physical method for tumor hyperthermia therapy. The conventional rigid electrode boards are often uncomfortable and inconvenient for performing surgery on irregular tumors, especially for those tumors near the joints, such as ankles, knee-joints or other facets like finger joints. MATERIAL AND METHODS: We proposed and demonstrated a highly conformable tumor ablation strategy through introducing liquid metal bath as conformable soft electrodes...
August 2018: Minimally Invasive Therapy & Allied Technologies: MITAT
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