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Rapid Establishment of Tracheal Stenosis in Pigs Using Endotracheal Tube Cuff Overpressure and electrocautery

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Current Medical Science 2021年第2期41卷 329-335页

作者： Jin Hyoung Kim Jong Joon Ahn Yangin Jegal Soohyun Bae Soon Eun Park Moon Sik Jung Ju Ik Park Hee Jeong Cha Yongjik Lee Taehoon Lee Division of Respiratory and Critical Care Medicine Department of Intemnal MedicineUlsan University HospitalUniversity of Ulsan College of MedicineUlsan 44033Korea Department of Anesthesiology and Pain Medicine UIsan University HospitalUniversity of Ulsan College of MedicineUlsan 44033Korea Department of Pathology Ulsan University HospitalUniversity of Ulsan College of MedicineUlsan 44033Korea Department of Thoracic and Cardiovascular Surgery Ulsan University HospitalUniversity of Ulsan College of MedicineUlsan 44033Korea

To apply a new airway treatment to humans, preclinical studies in an appropriate animalmodel is needed. Canine, porcine and leporine tracheas have been employed as animal airwaystenosis models using various methods such as chemical caustic agents, laser, and ***, existing models take a long time to develop (3- 8 weeks) and the mechanism of stenosisis different from that in humans. The aim of the present study was to establish a new and fasttracheal stenosis model in pigs using a combination of cuff overpressure intubation (COI) andelectrocautery. Fourteen pigs were divided into three groups: tracheal cautery (TC) group (n=3),COI group (n=3), and COI-TC combination group (n=8). Cuff overpressure (200/400/500 mmHg)was applied using a 9-mm endotracheal tube. Tracheal cautery (40/60 watts) was performed usinga rigid bronchoscopic electrocoagulator. After intervention, the pigs were observed for 3 weeks andbronchoscopy was performed every 7 days. When the cross-sectional area decreased by > 50%, itwas confirmed that tracheal stenosis was established. The time for tracheal stenosis was 14 days inthe TC group and 7 days in the COI-TC combination group. In the COI group, no stenosis *** the COI-TC group, electrocautery (40 watts) immediately after intubation for>1 h with a cufpressure of 200 mmHg or more resulted in suficient tracheal stenosis within 7 days. Moreover, thedegree of tracheal stenosis increased in proportion to the cuff pressure and tracheal intubation *** combined use of cuf overpressure and electrocautery helped to establish tracheal stenosis inpigs rapidly.

关键词： pig tracheal stenosis model cuff overpressure electrocautery

electrocautery vs non-electrocautery dilation catheters in endoscopic ultrasonography-guided pancreatic fluid collection drainage

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World Journal of Gastrointestinal Endoscopy 2016年第13期8卷 458-465页

作者： Katsuya Kitamura Akira Yamamiya Yu Ishii Tomohiro Nomoto Tadashi Honma Hitoshi Yoshida Division of Gastroenterology Department of Medicine Showa University School of Medicine

AIM: To investigate the safety and utility of an electrocautery dilation catheter for endoscopic ultrasonography(EUS)-guided pancreatic fluid collection ***: A single-center, exploratory, retrospective study was conducted between August 2010 and August 2014. This study was approved by the Medical Ethics Committee of our institution. Informed, written consent was obtained from each patient prior to the procedure. The subjects included 28 consecutive patients who underwent EUS-guided transmural drainage(EUS-TD) for symptomatic pancreatic and peripancreatic fluid collections(PFCs) by fine needle aspiration using a 19-gauge needle. These patients were retrospectively divided into two groups based on the use of an electrocautery dilation catheter as a fistula dilation device; 15 patients were treated with an electrocautery dilation catheter(electrocautery group), and 13 patients were treated with a non-electrocautery dilation catheter(non-electrocautery group). We evaluated the technical and clinical successes and the adverse events associated with EUS-TD for the treatment of PFCs between the two ***: There were no significant differences in age, sex, type, location and diameter of PFCs between the groups. Thirteen patients(87%) in the electrocauterygroup and 10 patients(77%) in the non-electrocautery group presented with infected PFCs. The technical success rates of EUS-TD for the treatment of PFCs were 100%(15/15) and 100%(13/13) for the electrocautery and the non-electrocautery groups, respectively. The clinical success rates of EUS-TD for the treatment of PFCs were 67%(10/15) and 69%(9/13) for the electrocautery and the non-electrocautery groups, respectively(P = 0.794). The procedure time of EUS-TD for the treatment of PFCs in the electrocautery group was significantly shorter than that of the non-electrocautery group(mean ± SD: 30 ± 12 min vs 52 ± 20 min, P < 0.001). Adverse events associated with EUS-TD for the treatment of PFCs occurred in

关键词： electrocautery dilation catheter Endoscopic ultrasonography-guided transmural drainage Fistula dilation device Pancreatic and peripancreatic fluid collection Procedure time

Postoperative Outcomes in Coblation versus electrocautery Tonsillectomies

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International Journal of Otolaryngology and Head & Neck Surgery 2014年第1期3卷 32-41页

作者： Viet Pham Nikunj Rana Michael Underbrink Farrah Siddiqui Shraddha Mukerji Harold Pine Department of Otolaryngology The University of Texas Medical Branch in Galveston Galveston USA School of Medicine The University of Texas Medical Branch in Galveston Galveston USA

Purpose: To investigate whether children undergoing a tonsillectomy or adenotonsillectomy (AT) with Coblation? will experience less postoperative pain and return to a normal diet and a regular activity level sooner compared to the same procedure using electrocautery dissection. This may manifest less school and work missed by the child and caregiver, respectively. Materials and Methods: Seventy-four children between the ages 2-13 years with either obstructive sleep apnea or chronic tonsillitis were recruited at a single tertiary-care center from January 2011 to November 2012 and underwent an AT via electrocautery or Coblation?. Caregivers were given a ten-point Wong-Baker FACES pain scale and questions inquiring the degree of oral intake, activity level, and impact on both the child and caregiver in regards to missing work or school on postoperative days (POD) 0, 1, 2, 3, 5, 7, and 14. Results: Children in the Coblation? arm required less pain medications (p 0.0049) on POD 0. Subsequent results were not significantly different for any other day. Age- and gendered-controlled multivariate analysis revealed a statistically significant difference in pain medications administered (p 0.0001) but not pain scores (p 0.2115) between the two techniques, although this difference in medications is likely related to the results observed on POD 0. There was no incidence of postoperative hemorrhage in either group. Conclusions: While there was less pain medication administered and slightly improved oral intake of liquids on POD 0 for children in the Coblation? arm, there was no difference in subsequent postoperative outcome or hemorrhage rates.

关键词： Postoperative Outcomes Coblation electrocautery Tonsillectomies Pediatric

Dissection and ligation of the lateral circumflex femoral artery is not necessary when using the direct anterior approach for total hip arthroplasty

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World Journal of Clinical Cases 2019年第24期7卷 4226-4233页

作者： Gong-Yin Zhao Yu-Ji Wang Nan-Wei Xu Feng Liu Department of Orthopedics The Affiliated Changzhou NO.2 People’s Hospital of Nanjing Medical UniversityChangzhou 213003Jiangsu ProvinceChina Department of Orthopedics The First Affiliated Hospital of Nanjing Medical UniversityNanjing 210000Jiangsu ProvinceChina

BACKGROUND Branches of the lateral circumflex femoral artery(LCFA) stretch across the surgical field during a direct anterior total hip arthroplasty. It is an anatomical marker in direct anterior approach. As an important vessel around the hip joint,this vessel was ligated in most situations. Although ligation of the vascular pedicle of the LCFA is a common, traditional procedure used to decrease bleeding, the ligation of the pedicle of the vessel is tedious and *** To explore whether this ligation is truly necessary in a direct anterior approach to total hip *** This single-center, single-surgeon, prospective study was performed to compare patients' bleeding undergoing ligation of the branches of the LCFA pedicle(group A) vs those treated with electrocautery from the branches of the LCFA(group B). In both groups, the pedicles were identified in the intermuscular plane between the tensor fasciae lata and the rectus femoris muscles. In group A, the pedicles were ligated with a silk ligature. In group B, the branches coming off the LCFA were controlled with electrocautery. We compared preoperative vs postoperative changes in blood hemoglobin levels, intraoperative blood loss,operative time, rates of transfusion, re-bleeding, and hematoma between the two *** The reduction of hemoglobin in group A was 20.9 ± 7.0, and in group B it was 21.2 ± 4.9. There was no statistically significant difference between the two groups(P > 0.05). The actual calculated blood loss in group A was 784 ± 125 mL,and in group B it was 722 ± 153 mL. There was a trend in group A having more blood loss(P = 0.078). The estimated blood loss in group A was 344 ± 88 mL, and in group B it was 346 ± 73 mL. There was no statistically significant difference between the two groups(P = 0.883). In addition, there were no significant differences in the rates of postoperative transfusion(10% vs 6.7%, P > 0.05),postoperative hematomas(6.7% vs 13.3%, P > 0.05), or re-bl

关键词： Total hip arthroplasty Direct anterior approach Lateral circumflex femoral artery Ligation Blood loss electrocautery

The future of wireless capsule endoscopy

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World Journal of Gastroenterology 2008年第26期14卷 4142-4145页

作者： Paul Swain Department of Surgical Oncology and Technology London University (Imperial College)London NW3 1TNUnited Kingdom

We outline probable and possible developments with wireless capsule endoscopy. It seems likely that capsule endoscopy will become increasingly effective in diagnostic gastrointestinal endoscopy. This will be attractive to patients especially for cancer or varices detection because capsule endoscopy is painless and is likely to have a higher take up rate compared to conventional colonoscopy and gastroscopy. Double imager capsules with increased frame rates have been used to image the esophagus for Barrett's and esophageal varices. The image quality is not bad but needs to be improved if it is to become a realistic substitute for flexible upper and lower gastrointestinal endoscopy. An increase in the frame rate, angle of view, depth of field, image numbers, duration of the procedure and improvements in illumination seem likely. Colonic, esophageal and gastric capsules will improve in quality, eroding the supremacy of flexible endoscopy, and become embedded into screening programs. Therapeutic capsules will emerge with brushing, cytology, fluid aspiration, biopsy and drug delivery capabilities. electrocautery may also become possible. Diagnostic capsules will integrate physiological measurements with imaging and optical biopsy, and immunologic cancer recognition. Remote control movement will improve with the use of magnets and/or electrostimulation and perhaps electromechanical methods. External wireless commands will influence capsule diagnosis and therapy and will increasingly entail the use of real-time imaging. However, it should be noted that speculations about the future of technology in any detail are almost always wrong.

关键词： Wireless Capsule Endoscopy Future Complementary oxide silicone Charge coupled device Therapy Screening Colonoscopy Biopsy Cancer electrocautery

Effects of medically generated electromagnetic interference from medical devices on cardiac implantable electronic devices: A review

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World Journal of Cardiology 2022年第8期14卷 446-453页

作者： Walker Barmore Himax Patel Cassandra Voong Caroline Tarallo Joe B Calkins Jr Department of Cardiology Augusta University Medical CenterAugustaGA 30912United States Department of Internal Medicine Augusta University Medical CenterAugustaGA 30912United States Medical College of Georgia Medical College of GeorgiaAugustaGA 30912United States

As cardiac implantable electronic devices(CIED)become more prevalent,it is important to acknowledge potential electromagnetic interference(EMI)from other sources,such as internal and external electronic devices and procedures and its effect on these *** from other sources can potentially inhibit pacing and trigger shocks in permanent pacemakers(PPM)and implantable cardioverter defibrillators(ICD),*** review analyzes potential EMI amongst CIED and left ventricular assist device,deep brain stimulators,spinal cord stimulators,transcutaneous electrical nerve stimulators,and throughout an array of procedures,such as endoscopy,bronchoscopy,and procedures involving *** there is evidence to support EMI from internal and external devices and during procedures,there is a lack of large multicenter studies,and,as a result,current management guidelines are based primarily on expert opinion and anecdotal *** aim to provide a general overview of PPM/ICD function,review documented EMI effect on these devices,and acknowledge current management of CIED interference.

关键词： Electromagnetic interference Pacemaker Implantable cardioverter defibrillator Permanent pacemakers Cardiac implantable electronic devices Left ventricular assist device Endoscopy Bronchoscopy electrocautery Capsule endoscopy Transcutaneous electrical nerve stimulators unit Spinal cord stimulator

In vitro study of safety and co-efficiency of the transbronchial coagulation techniques

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Chinese Medical Journal 2013年第1期126卷 124-128页

作者： BAI Chong DONG Yu-chao SONG Xiao-lian HUANG Yi SHI Hui HU Zhen-li LI Qiang Department of Respiratory Medicine Changhai Hospital SecondMilitary Medical University Shanghai 200433 China Department of-Respiratory Medicine Shanghai 10th People'sHospital Tongji University School of Medicine Shanghai 200072China

Background The usual transbronchial coagulation techniques include microwave, argon plasma coagulation （APC）, electrocautery and cryotherapy. However, there are serious clinical problems in the safety of each. By analyzing the experimental data and clinical observations, we observed the variable effects of different coagulation techniques via bronchofibroscopy, to look for an optimal interventional management of luminal bronchus diseases, and evaluate the safety and the equivalent point. Methods Four kinds of coagulation techniques under bronchoscopy were performed on the fresh bronchus of healthy sheep, and the pathologic changes in all groups were observed under the microscope. The different treatment parameters were as follows： microwave 60 Wxl second, 3 seconds, 5 seconds and 40 W×1 second, 3 seconds, 5 seconds; APC 40 W×1 second, 3 seconds, 5 seconds; electrocautery 40 W×1 second, 3 seconds, 5 seconds; cryotherapy 100 Ω×60 seconds, 120 seconds. Results After treatment, ovine bronchial mucosa in all groups showed pathologic changes such as local necrosis and amotio of the mucosa lining epithelium, local submucosa coagulative necrosis or tissue defects, while inflammation in the surrounding tissue was not obvious. Under the same output power and action time, different methods had different outcomes. The damage by APC was the most superficial, microwave was the second, and electrocautery caused the worst damage. The study also found that effects of electrocautery at 40 W×3 seconds, microwave at 40 W×5 seconds or 60 W×3 seconds, APC at 40 W×5 seconds and cryotherapy at 100 Ω×120 seconds were the equivalent point conditions. The appearance included mucosa absence, partial submucosa absence, and collagen fiber coagulation in treatment areas. Conclusions Each coagulation technique has its own characteristic. It is very important to choose the appropriate power and action time of the suitable method according to the therapy requirement.

关键词： bronchoscopy coagulation microwave argon plasma coagulation electrocautery cryotherapy

Effects of Denervation on the Mid-term Results of Knee Joint Functions after Non-resurfaced Total Knee Arthroplasty

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Journal of Clinical and Nursing Research 2021年第3期5卷 12-18页

作者： Ningning Liu Huanhuan Su Yuanhe Wang Yu Zhang Hongjian Yu Department of Joint Surgery Binzhou People's HospitalBinzhou 256000Shandong ProvinceChina Department of Gastroenterology Binzhou People's HospitalBinzhou 256000Shandong ProvinceChina Department of Joint Surgery Affiliated Hospital of Qingdao UniversityQingdao 266000Shandong ProvinceChina

Objective:Total knee arthroplasty(TKA)has become an effective treatment modality for end-stage osteoarthritis and rheumatoid *** problems such as anterior knee pain affect postoperative patient *** denervation has been proposed as a technique to relieve pain,but its efficacy remains *** study evaluated the mid-and long-term effects of patellar denervation on postoperative knee joint functions,hoping to provide better guidance for clinical ***:This study is a prospective randomized controlled double-blind study.58 patients undergoing bilateral non-resurfaced total knee arthroplasty were included and randomized into two *** groups underwent total knee arthroplasty while patellar denervation was performed only on the experimental *** regarding whether if patellar denervation was performed were withheld from all patients and outcome *** surgeries were performed by the same high-level professional physician,and the post-stable knee prosthesis system(PS Scorpio NRG PS,Stryker)was used during the *** knee joint functions were evaluated by professional assessors before and after *** evaluation indicators mainly include KSS scoring,Western Ontario and McMaster Universities(WOMAC)scoring and Visual Analogue Scale(VAS),FJS scoring,*** follow-up period was 3 years and 5 years after ***:The experimental group had better KSS and FJS scores than the control group,the difference was statistically *** was no significant inter-group difference in WOMAC and VAS ***:The patellar denervation in TKA patients has positive effects on the mid-and long-term recovery of knee joint functions,and the postoperative satisfaction is better.

关键词： Patella denervation Total knee arthroplasty Anterior knee pain electrocautery Functional recovery

Patellaplasty, as an Alternative to Replacing Patella in Total Knee Arthroplasty

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Open Journal of Orthopedics 2015年第9期5卷 277-282页

作者： Sanjay Agarwala Anshul Sobti Siddhant Naik Department of Orthoapedic Surgery P.D Hinduja National Hospital & Medical Research Centre Mahim Mumbai India

Aim: In tricompartmental osteoarthritis of the knee, the patellofemoral articulation is severely affected due to degenerative changes. Patellaplasty is done as a part of total knee arthroplasty in these cases to smoothen the articular surface of patella. However, an ideal technique with easy reproducibility has been scarcely reported for the same. Method: We describe a method of using electrocautery and power saw with thin blades for patellaplasty. Results: Using this technique, we have produced results, which are comparable with cases where patellar resurfacing has been done. Conclusion: This described method for patellaplasty is easy with good reproducibility.

关键词： Patellaplasty electrocautery Power Saw Total Knee Arthroplasty