共查询到20条相似文献,搜索用时 31 毫秒
1.
Junmo An Andrew G. Webb Dipan J. Shah Karen Chin Nikolaos V. Tsekos 《The international journal of medical robotics + computer assisted surgery : MRCAS》2018,14(1)
Background
A method for the identification of semi‐active fiducial magnetic resonance (MR) markers is presented based on selectively optically tuning and detuning them.Methods
Four inductively coupled solenoid coils with photoresistors were connected to light sources. A microcontroller timed the optical tuning/detuning of coils and image collection. The markers were tested on an MR manipulator linking the microcontroller to the manipulator control to visibly select the marker subset according to the actuated joint.Results
In closed‐loop control, the average and maximum were 0.76° ± 0.41° and 1.18° errors for a rotational joint, and 0.87 mm ± 0.26 mm and 1.13 mm for the prismatic joint.Conclusions
This technique is suitable for MR‐compatible actuated devices that use semi‐active MR‐compatible markers. 相似文献2.
Juan D. San Juan Abie H. Mendelsohn 《The international journal of medical robotics + computer assisted surgery : MRCAS》2023,19(4):e2510
Background
Transoral robotic surgery (TORS) using the Single-Port system (SPS) relies on electrocautery, limiting its applications in the upper aerodigestive tract. We evaluated the feasibility of a CO2 delivery system for the SPS.Methods
Otolaryngology residents performed a cutting exercise using a handheld CO2 laser and participated in a cadaveric oropharyngeal dissection using the SPS with monopolar cautery (SP + EC) and CO2 laser (SP + CO2). Residents completed the System Usability Scale (SUS) questionnaire to evaluate these techniques.Results
The same laser fiber was used for all combined dissections. The handheld CO2 laser, SP + EC, and SP + CO2 demonstrated similar SUS scores. On individual domain scores, SP + CO2 received less favorable ratings compared to the handheld CO2 laser for complexity, integration, and cumbersome experience (p < 0.05). On subgroup stratification, less TORS experience was associated with worse SUS scores.Conclusion
SP-guided CO2 laser delivery is a viable alternative to electrocautery in robotic surgery, and should be considered when performing TORS. 相似文献3.
Antonio Gangemi Paolo Bernante Matteo Rottoli Federica Pasquali Gilberto Poggioli 《The international journal of medical robotics + computer assisted surgery : MRCAS》2023,19(4):e2544
Introduction
As robotic surgery increases its reach, novel platforms are being released. We present the first 17 consecutive cases of alimentary tract surgery performed with the HugoTM RAS (Medtronic).Methods
patients were selected to undergo surgery from February through April 2023. Exclusion criteria were age <16 years, BMI>60, ASA IV.Results
17 patients underwent ileocaecal resection for Chrons disease (2 M and 1 F) and pseudo-obstruction of the terminal ileum (1 M), cholecystectomy (3 M and 5 F), subtotal gastrectomy with D2 lymphadenectomy (1 F), sleeve gastrectomy (1 F), hiatal hernia repair with Nissen fundoplication (1 M), right hemicolectomy (1 M) and sigmoidectomy (1 M). No conversion to an open approach or any arm collisions requiring corrective actions were reported.Conclusions
Our preliminary experience with the HugoTM RAS point to safety and feasibility for a rather wide spectrum of surgical procedures of the alimentary tract. 相似文献4.
Rashmitha Dachepally Alvaro Donaire Garcia Wei Liu Christine Flechler William J. Hanna 《Paediatric anaesthesia》2023,33(6):460-465
Background
Critically ill pediatric patients can have difficulty with establishing and maintaining stable vascular access. A long-dwelling peripheral intravenous catheter placement decreases the need for additional vascular interventions.Aim
The study sought to compare longevity, catheter-associated complications, and the need for additional vascular interventions when using ultrasound-guided longer peripheral intravenous catheters comparing to a traditional approach using standard-sized peripheral intravenous catheters in pediatric critically ill patients with difficult vascular access.Methods
This single-center retrospective cohort study included children 0–18 years of age with difficult vascular access admitted to the pediatric intensive care unit between 01/01/2018–06/01/2021.Results
One hundred and eighty seven placements were included in the study, with 99 ultrasound-guided long intravenous catheters placed and 88 traditionally placed standard-sized intravenous catheters. In the univariate analysis, patients in the traditional approach were at a higher risk of intravenous failure compared to those in the ultrasound-guided approach (HR = 2.20, 95% CI [1.45–3.34], p = .001), with median intravenous survival times of 108 and 219 h, respectively. Adjusting for age, patients in the traditional approach remained at higher risk of intravenous failure (HR = 1.99, 95% CI: [1.28–3.08], p = .002). Adjusting for hospital length of stay, patients in the ultrasound-guided approach were less likely to have additional peripheral intravenous access placed during hospitalization (OR = 0.39, 95% CI [0.18–0.85] p = .017).Conclusion
In critically ill pediatric patients with difficult vascular access, ultrasound-guided long peripheral intravenous catheters provide an alternative to traditional approach standard-sized intravenous catheters with improved longevity, lower failure rates, and reduced need for additional vascular interventions. 相似文献5.
Sunil Dixit Rajat Agarwal Neeraj Kumar Rakesh Kumar Verma Vinay Krishna Jeevan Lal Sahni 《Indian Journal of Thoracic and Cardiovascular Surgery》2011,27(1):33-35
Background
We report our experience of 3 years in the management of tracheobronchial foreign bodies in our department of cardiothoracic surgery. 相似文献6.
Julia Torabi Juan P. Rocca Krystina Choinski Katherine Lorenzen Camille Yongue Michelle L. Lubetzsky Melvon E. Herbert Attasit Chokechanachaisakul Maria Ajaimy Layla Kamal Enver Akalin Milan Kinkhabwala Jay A. Graham 《Clinical transplantation》2018,32(1)
Background
We analyze our outcomes utilizing imported allografts as a strategy to shorten wait list time for pancreas transplantation.Methods
This is an observational retrospective cohort of 26 recipients who received either a locally procured (n = 16) or an imported pancreas graft (n = 10) at our center between January 2014 and May 2017. Wait list times of this cohort were compared to UNOS Region 9 (New York State and Western Vermont). Hospital financial data were also reviewed to analyze the cost‐effectiveness of this strategy.Results
Imported pancreas grafts had significantly increased cold ischemia times (CIT) and peak lipase (PL) levels compared to locally procured grafts (CIT 827 vs 497 minutes; P = .001, PL 563 vs 157 u/L; P = .023, respectively). There were no differences in graft or patient survival. The median wait time was significantly lower for simultaneous kidney‐pancreas transplants at our center (518 days, n = 21) compared to Region 9 (1001 days, n = 65) P = .038. Despite financial concerns, the cost of transport for imported grafts was offset by lower standard acquisition costs.Conclusions
Imported pancreas grafts may be a cost‐effective strategy to increase organ utilization and shorten wait times in regions with longer waiting times. 相似文献7.
Qiangqiang Liu Ziyu Mao Junjie Wang Changquan Wang Wenze Chen Wenzhen Chen Xiaolai Ye Chencheng Zhang Yong Lu Jiwen Xu 《The international journal of medical robotics + computer assisted surgery : MRCAS》2023,19(2):e2479
Background
We aimed to evaluate the accuracy and safety of a novel self-tapping bone fiducial as a registration technique for stereoelectroencephalography (SEEG) implantation.Methods
Each patient was installed with five bone fiducial markers. All procedures were performed using the same Sinovation robot system. The accuracy was determined by calculating the target point error (TPE) and the entry point error (EPE) of electrodes.Results
Fourteen patients underwent SEEG implantation surgery; and the average installation time of the markers per patient was 86.1 s. In the operating theatre, the average registration time was 206.6 s, and the average registration error was 0.18 mm. The average TPE of 174 electrodes was 1.98 mm and the average EPE was 0.88 mm.Conclusion
Our study provided a bone fiducial marker installation and registration technique that was convenient and fast, highly accurate in registration, and highly tolerated by patients. 相似文献8.
A comparison of operative outcomes between standard and robotic laparoscopic surgery for endometrial cancer: A systematic review and meta‐analysis 下载免费PDF全文
Thomas Ind Alex Laios Matthew Hacking Marielle Nobbenhuis 《The international journal of medical robotics + computer assisted surgery : MRCAS》2017,13(4)
9.
Carl Joachim Wirth 《Orthopedics and Traumatology》1999,7(2):79-86
Objectives
Restoration of stability and function of the shoulder. 相似文献10.
Akio Sakamoto Tatsuya Yoshida Yoshio Uchida Tetsuo Kojima Hideaki Kubota Yukihide Iwamoto 《Journal of orthopaedic surgery and research》2008,3(1):13
Background
Congenital pseudoarthrosis of the tibia (CPT) is one of the most difficult conditions to treat. 相似文献11.
A randomized trial of automated intermittent ropivacaine administration vs. continuous infusion in an interscalene catheter 下载免费PDF全文
J. Oxlund A. H. Clausen S. Venø M. D. Nielsen M. Pall T. Strøm P. Toft 《Acta anaesthesiologica Scandinavica》2018,62(1):85-93
Background
Ultrasound‐guided interscalene nerve block with ropivacaine as local anesthetic agent given as boluses or continuous infusion is the preferred pain management after major shoulder surgery. The use of automated intermittent boluses has been shown to be superior to continuous infusion in sciatic and epidural nerve block. Hypothesis: Automated intermittent boluses reduce pain after major shoulder surgery.Methods
Seventy patients aged 18–75 years, scheduled for major shoulder surgery under general anesthesia with interscalene nerve block were included in this randomized controlled trial. Patients were allocated to either automated intermittent boluses with 16 mg ropivacaine every 2 h combined with patient‐controlled administration or to a conventional regimen of continuous infusion of 8 mg/h (4 ml/h) of ropivacaine combined with patient controlled administration (2 ml, lockout time 30 min). Pain (Visual Analog Scale, VAS) was assessed every 8 h postoperatively.Results
Fifty‐seven patients completed the study, 29 in the continuous infusion group and 28 in the automated intermittent bolus group. Shoulder arthroplasty was performed in 49 (86%) of the cases. There were no significant differences in VAS score from 8 to 48 h post‐operatively. No significant difference in opioid usage was observed. The automated intermittent bolus group reported significantly less force on coughing and more hoarseness. A significantly lower volume of ropivacaine was used in the automated intermittent bolus group.Conclusion
Automated intermittent boluses did not reduce pain or rescue opioid consumption compared with continuous infusion of ropivacaine. The automated intermittent bolus group had significantly less force on coughing and more hoarseness. 相似文献12.
Denis Nam MD Daryl C. Osbahr MD Daniel Choi BA Anil S. Ranawat MD Bryan T. Kelly MD Struan H. Coleman MD PhD 《HSS journal》2011,7(3):239-243
Purpose
To use computer navigation software to investigate the specific origins of the hip capsuloligamentous complex. 相似文献13.
Vicente Lorenzo-Zúñiga Jaume Boix Vicente Moreno-de-Vega Napoleón D. de-la-Ossa Gemma Òdena Ramon Bartolí 《The Journal of surgical research》2014
Background
The aim of the present study was to develop a rat model of colonic microperforation secondary to thermal injury for future studies to assess new treatments.Methods
Twenty-four male Sprague–Dawley rats were used in this study. Hot biopsy forceps were used for all treatments. All lesions were created in proximal left colon using the soft coagulation setting. The power setting tested was 40 W, and the durations of monopolar soft coagulation application evaluated were 2, 3, and 4 s.Results
In the acute phase, 48 h after thermal injury, durations of cautery of 2 and 3 s resulted in transmural necrosis, whereas with 4 s microperforation was obtained. In the late phase, 7 d after the damage, only duration of cautery of 4 s showed deep cautery effects, with signs of peritonitis.Conclusions
We determined optimal power settings and duration of therapy in a rat model for producing electrocautery that involves transmural necrosis with microperforation. 相似文献14.
Introduction
Lymphangiomas of the gallbladder in adults are extremely rare with only 10 cases published worldwide to date. 相似文献15.
16.
Christian Hatzfeld Sarah Dorsch Carsten Neupert Mario Kupnik 《The international journal of medical robotics + computer assisted surgery : MRCAS》2018,14(1)
Background
Impairment of haptic perception by surgical gloves could reduce requirements on haptic systems for surgery. While grip forces and manipulation capabilities were not impaired in previous studies, no data is available for perception thresholds.Methods
Absolute and differential thresholds (20 dB above threshold) of 24 subjects were measured for frequencies of 25 and 250 Hz with a Ψ‐method. Effects of wearing a surgical glove, moisture on the contact surface and subject's experience with gloves were incorporated in a full‐factorial experimental design.Results
Absolute thresholds of 12.8 dB and ?29.6 dB (means for 25 and 250 Hz, respectively) and differential thresholds of ?12.6 dB and ?9.5 dB agree with previous studies. A relevant effect of the frequency on absolute thresholds was found. Comparisons of glove‐ and no‐glove‐conditions did not reveal a significant mean difference.Conclusions
Wearing a single surgical glove does not affect absolute and differential haptic perception thresholds. 相似文献17.
L. de Gabory A. Maunoury S. Maurice-Tison H. Merza Abdulkhaleq V. Darrouzet J. P. Bébéar D. Stoll 《Annals of surgical oncology》2010,17(4):1127-1134
Objectives
To assess management options for ethmoid adenocarcinoma. 相似文献18.
Elliot B. Tapper Diego Martin N. Volkan Adsay David Kooby Bobby Kalb Juan M. Sarmiento 《Journal of gastrointestinal surgery》2010,14(8):1292-1297
Objectives
The purpose of the study was to describe the MRI-driven management of masses at the head of the pancreas. 相似文献19.
Viera Svihrova G. Alessandro Digesu Jan Svihra Henrieta Hudeckova Jan Kliment Steven Swift 《International urogynecology journal》2010,21(1):53-61
Introduction and hypothesis
This study aimed to validate the Slovakian version of the prolapse quality-of-life (P-QOL) questionnaire. 相似文献20.