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Minimally Invasive Therapy & Allied Technologies: MITAT

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https://www.readbyqxmd.com/read/27885870/transanal-total-mesorectal-excision-for-restorative-coloproctectomy-in-an-obese-high-risk-patient-with-colitis-associated-carcinoma
#1
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/27869520/outpatient-single-port-laparoscopic-percutaneous-morgagni-hernia-repair-assisted-by-an-optical-forceps
#2
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-months-old girl, were operated with this technique in just 26 and 35 minutes and were discharged with oral analgesic prescription by postoperative hour 5 and 8, respectively...
November 21, 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
#3
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...
November 21, 2016: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/27841700/force-model-for-laparoscopic-graspers-implications-for-virtual-simulator-design
#4
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
#5
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
#6
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
#7
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
#8
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/27760001/geometric-systematic-prostate-biopsy
#9
Doyoung Chang, Xue Chong, Chunwoo Kim, Changhan Jun, Doru Petrisor, Misop Han, Dan Stoianovici
OBJECTIVE: The common sextant prostate biopsy schema lacks a three-dimensional (3D) geometric definition. The study objective was to determine the influence of the geometric distribution of the cores on the detection probability of prostate cancer (PCa). METHODS: The detection probability of significant (>0.5cm(3)) and insignificant (<0.2cm(3)) tumors was quantified based on a novel 3D capsule model of the biopsy sample. The geometric distribution of the cores was optimized to maximize the probability of detecting significant cancer for various prostate sizes (20 to 100cm(3)), number of biopsy cores (6 to 40 cores) and biopsy core lengths (14 to 40mm) for transrectal and transperineal biopsies...
October 19, 2016: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/27750475/value-of-percutaneous-needle-biopsy-of-small-renal-tumors-in-patients-referred-for-cryoablation
#10
Toshihiro Iguchi, Takao Hiraki, Hideo Gobara, Hiroyasu Fujiwara, Jun Sakurai, Yusuke Matsui, Motoo Araki, Yasutomo Nasu, Susumu Kanazawa
PURPOSE: To retrospectively evaluate the safety and diagnostic yield of needle biopsy of small renal tumors, and the clinical consequences of performing needle biopsy in patients referred for percutaneous cryoablation before their treatment. MATERIAL AND METHODS: Biopsy was performed for 120 tumors (mean diameter, 2.2 cm) in 119 patients. All procedures were divided into diagnostic and non-diagnostic biopsies. Various variables were compared between the two groups...
October 18, 2016: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/27667447/the-clinical-experience-of-robot-assisted-surgery-in-gynecologic-cancer
#11
Xue-Lian Li, Dan-Feng Du, Hua Jiang
The comparison of robotic and conventional laparoscopic hysterectomy and pelvic lymphadenectomy in gynecologic cancer still needs to be studied. In all, 98 consecutive cases of patients with gynecologic cancer undergoing robot-assisted hysterectomy and pelvic lymphadenectomy, and another 98 consecutive cases of conventional laparoscopic hysterectomy and pelvic lymphadenectomy during the same period in the Obstetrics and Gynecology Hospital of Fudan University were included. The duration of the operation, blood loss, drainage during the first 24 h after the operation, total hospital stay, hospital stay after the operation, lymph nodes collected, perioperative complications, and the cost of each operation for both procedures were recorded...
September 26, 2016: 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
#12
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...
September 23, 2016: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/27658978/modular-aortic-valve-prosthesis-for-transcatheter-aortic-valve-implantation-a-novel-concept-with-a-new-implantation-method
#13
Gilberto Melnick, Enio Eduardo Guerios, Guilherme Agreli
Transcatheter aortic valve implantation (TAVI) is a relatively new medical intervention. Research on dedicated TAVI devices is an exciting and dynamic field to be explored by professionals involved in technological innovation. The authors describe in this article the first engineering concept and part of the US Patent of a new valve prosthesis. Divided into two pieces to be separately implanted using a single catheter by means of an innovative technique, this device aims at reducing prosthesis and delivery catheter profile...
September 23, 2016: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/27652670/four-categories-of-leep-for-cin-of-various-areas-a-retrospective-cohort-study
#14
Geping Yin, Juan Li, Aifang Wu, Jing Liang, Zheng Yuan
PURPOSE: To compare the effectiveness and safety of loop electrosurgical excision procedures (LEEP) with four different excisions in treating cervical intraepithelial neoplasia (CIN) of different areas. METHODS: Four hundred and sixty-six cases of CIN were treated with different types of LEEP. Following visual inspection with acetic acid and Lugol's iodine, LEEP were performed to excise the transformation zone to a 20-25 mm depth with a 2-3 mm margin. Four categories of procedures are described below: 1) LEEP-A for lesion ≥ 2/3 of cervical area: conization of ≥ 2/3 of cervical tissue...
September 21, 2016: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/27616428/a-novel-magnetic-driven-tissue-retraction-device-for-minimally-invasive-surgery
#15
Margherita Brancadoro, Selene Tognarelli, Gastone Ciuti, Arianna Menciassi
INTRODUCTION: The purpose of this work is to design and validate an innovative magnetic-based device for tissue retraction for minimally invasive surgery. MATERIAL AND METHODS: An intra-abdominal magnetic module is coupled with an extracorporeal system for establishing a stable attraction and consequently a reliable tissue retraction. Once the retractor has been inserted into the abdomen, tissue retraction is not constrained by a fixed access port, thus guaranteeing a more flexible, safer and less invasive operation...
September 12, 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
#16
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
#17
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/27652798/transanal-total-mesorectal-excision-technical-aspects-of-approaching-the-mesorectal-plane-from-below
#18
Joep Knol, Sami A Chadi
Standardization of transanal total mesorectal excision requires the delineation of the principal procedural components before implementation in practice. This technique is a bottom-up approach to a proctectomy with the goal of a complete mesorectal excision for optimal outcomes of oncologic treatment. A detailed stepwise description of the approach with technical pearls is provided to optimize one's understanding of this technique and contribute to reducing the inherent risk of beginning a new procedure. Surgeons should be trained according to standardized pathways including online preparation, observational or hands-on courses as well as the potential for proctorship of early cases experiences...
October 2016: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/27415777/techniques-and-technology-evolution-of-rectal-cancer-surgery-a-history-of-more-than-a-hundred-years
#19
Marco Maria Lirici, Cristiano G S Hüscher
History of rectal cancer surgery has shown a continuous evolution of techniques and technologies over the years, with the aim of improving both oncological outcomes and patient's quality of life. Progress in rectal cancer surgery depended on a better comprehension of the disease and its behavior, and also, it was strictly linked to advances in technologies and amazing surgical intuitions by some surgeons who pioneered in rectal surgery, and this marked a breakthrough in the surgical treatment of rectal cancer...
October 2016: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/27388332/the-mitat-topic-issue-on-tatme-a-window-on-the-possible-advances-in-rectal-surgery-and-medical-publishing
#20
Marco Maria Lirici, Cristiano G S Hüscher, Eiji Kanehira
No abstract text is available yet for this article.
October 2016: Minimally Invasive Therapy & Allied Technologies: MITAT
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