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Thermal surgery

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https://www.readbyqxmd.com/read/28442691/laser-assisted-techniques-for-penetrating-and-nonpenetrating-glaucoma-surgery
#1
Noa Geffen, Ehud I Assia, Shlomo Melamed
The use of lasers is slowly pervading all subspecialties of ophthalmology, especially glaucoma, and lasers are slowly replacing many glaucoma surgeries. Conventional trabeculectomy has so far remained the gold standard for glaucoma surgery and efforts are being made to develop a new surgical approach to overcome the limited success rate and safety issues of this traditional procedure. There is a great interest in using lasers for ab interno and ab externo penetrating and nonpenetrating filtering surgery. Theoretically, laser-assisted surgery offers the potential advantage of improved accuracy, repeatability, and safety, although the main drawback of using lasers for this purpose is the potential collateral damage induced by the scattered energy...
2017: Developments in Ophthalmology
https://www.readbyqxmd.com/read/28424073/systematic-review-with-network-meta-analysis-dual-therapy-for-high-risk-bleeding-peptic-ulcers
#2
Keda Shi, Zeren Shen, Guiqi Zhu, Fansheng Meng, Mengli Gu, Feng Ji
BACKGROUND: Adding a second endoscopic therapy to epinephrine injection might improve hemostatic efficacy in patients with high-risk bleeding ulcers but the optimum modality remains unknown. We aimed to estimate the comparative efficacy of different dual endoscopic therapies for the management of bleeding peptic ulcers through random-effects Bayesian network meta-analysis. METHODS: Different databases were searched for controlled trials comparing dual therapy versus epinephrine monotherapy or epinephrine combined with another second modality until September, 30 2016...
April 19, 2017: BMC Gastroenterology
https://www.readbyqxmd.com/read/28419327/epilepsy-surgeries-requiring-an-operculoinsular-cortectomy-operative-technique-and-results
#3
Alain Bouthillier, Dang Khoa Nguyen
BACKGROUND: Epilepsy surgeries requiring an operculoinsulectomy pose significant difficulties because the perisylvian area is highly vascular, deep, and functional. OBJECTIVE: To report the operative technique and results of epilepsy surgeries requiring an operculoinsular cortectomy at our institution. METHODS: The data of all consecutive patients who had undergone an epilepsy surgery requiring an operculoinsular cortectomy with a minimum follow-up of 1 yr were reviewed...
April 17, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28418364/-evolution-of-complex-treatment-of-patients-with-non-specific-pleural-empyema
#4
O O Yasnogorodsky, A M Shulutko, T P Pinchuk, E G Gandybina, A S Kachikin, F N Nasirov, A Yu Moiseev, S E Gryaznov
AIM: To analyze long-term own experience of NPE treatment in view of evolution of surgical sanitation of pleural cavity. MATERIAL AND METHODS: The analysis included 5115 patients with NPE for the last 39 years (1977-2015). Morbidity, features of microflora of purulent exudate, changes in the structure of surgical methods were assessed. The role of computed tomography in the diagnostic algorithm and treatment of NPE was studied. RESULTS: The evolution of NPE surgical management includes introduction of video technologies, thermal surgical instruments and widespread use of computed tomography in the diagnosis of pleural empyema...
2017: Khirurgiia
https://www.readbyqxmd.com/read/28411921/salvage-surgery-after-renal-mass-ablation
#5
REVIEW
Brian W Cross, Daniel C Parker, Michael S Cookson
Thermal ablative techniques represent treatment options for patients with small renal masses who are not candidates for surgery. The oncologic efficacy of ablation has not been compared in a randomized fashion with nephron-sparing surgery, and the urologist must be knowledgeable regarding the workup and treatment of patients with suspected residual or recurrent tumor following these therapies. Surveillance of patients with tumor recurrence after ablation may be indicated in select circumstances. When patients are deemed appropriate for salvage therapy, most undergo a repeat course of the same ablative modality...
May 2017: Urologic Clinics of North America
https://www.readbyqxmd.com/read/28401629/a-1-470%C3%A2-nm-diode-laser-in-stapedotomy-mechanical-thermal-and-acoustic-effects
#6
Simone P C Koenraads, Tjeerd de Boorder, Wilko Grolman, Digna M A Kamalski
BACKGROUND AND OBJECTIVES: Multiple laser systems have been investigated for their use in stapes surgery in patients with otosclerosis. The diode 1,470 nm laser used in this study is an attractive laser system because it is easily transported and relatively inexpensive in use. This wavelength has relative high absorption in water. This study aimed to investigate the mechanical, thermal, and acoustic effects of the diode 1,470 nm laser on a stapes in an inner ear model. MATERIALS AND METHODS: Experiments were performed in an inner ear model including fresh frozen human stapes...
April 11, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28394547/influence-of-male-obesity-on-fertility
#7
Miro Kasum, Sonja Anić-Jurica, Ermin Čehić, Tajana Klepac-Pulanić, Josip Juras, Kristina Žužul
The aim of this review is to analyze current diagnostic approaches to obesity in adult men, the potential mechanisms linking obesity to infertility, and treatment options aimed at improving reproductive health. Obesity has become a worldwide epidemic with the estimated prevalence increasing from 28.8% to 36.9% between 1980 and 2013. In terms of diagnosis, numerous simple techniques have been developed including body mass index, waist to hip ratio, waist circumference, bioelectrical impedance analysis, ultrasound and skinfold measurements...
June 2016: Acta Clinica Croatica
https://www.readbyqxmd.com/read/28391423/image-guided-thermal-ablative-therapies-in-the-treatment-of-sarcoma
#8
REVIEW
Scott M Thompson, John J Schmitz, Grant D Schmit, Matthew R Callstrom, Anil Nicholas Kurup
Percutaneous thermal ablation, including microwave ablation (MWA), radiofrequency ablation (RFA), and cryoablation, is a well-established focal treatment option for primary and metastatic malignancies. While published literature specific to ablation of sarcomas is relatively lacking compared with non-sarcomatous malignancies, what is available is promising. In situations where a focal treatment option is desired, strong consideration should be given to percutaneous thermal ablation, in addition to surgery and radiation therapy...
April 2017: Current Treatment Options in Oncology
https://www.readbyqxmd.com/read/28388543/thermal-tomography-for-monitoring-tumor-response-to-neoadjuvant-chemotherapy-in-women-with-locally-advanced-breast-cancer
#9
Qi Wu, Juanjuan Li, Si Sun, Xiaoli Yao, Shan Zhu, Juan Wu, Qian Liu, Xiaojun Ding, Manman Shi, Kaiyang Li, Shengrong Sun
BACKGROUND & AIMS: This study aims to analyze the feasibility and predictive value of thermal tomography (TT) for monitoring early treatment response in patients with locally advanced breast cancer (LABC) receiving neoadjuvant chemotherapy (NAC). METHODS: Patients with LABC who were due to receive six cycles of NAC were examined by TT prior to NAC, the second cycle of NAC, the fourth cycle of NAC and surgery. Changes in TT parameters and ultrasonography were correlated with pathologic response to NAC, and the predictive value was assessed...
March 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28378266/comparison-of-forced-air-warming-systems-in-prevention-of-intraoperative-hypothermia
#10
Volkan Alparslan, Alparslan Kus, Tulay Hosten, Mehmet Ertargin, Dilek Ozdamar, Kamil Toker, Mine Solak
In this study, we aimed to compare the effects of forced-air warming upper body blankets and forced-air warming underbody blankets on intraoperative hypothermia in patients who were planned to undergo open abdominal surgical operations in which extensive heat loss occurs. This prospective and randomized study included 92 patients who would undergo lower abdominal surgery under general anesthesia. Patients were randomized by closed envelope method and divided into two groups. Group I (n:46) included the patients who would receive warming with forced-air warming upper body blanket, and Group II (n:46) consisted of the patients who received warming with forced-air warming underbody blanket...
April 4, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28376578/a-synopsis-of-current-international-guidelines-and-new-modalities-for-the-treatment-of-varicose-veins
#11
Nicholas Kemp
BACKGROUND: The UK National Institute for Health and Care Excellence released new guidelines in 2013 recommending that endovenous thermal ablation (laser or radiofrequency) and ultrasound-guided foam sclerotherapy should be offered before conventional surgery for treat-ment of varicose veins and saphenous vein reflux. OBJECTIVE: The aim of this article is to provide a synopsis of current international guidelines and recent advances for the treatment of varicose veins...
2017: Australian Family Physician
https://www.readbyqxmd.com/read/28370223/novel-assessment-tool-based-on-laser-speckle-contrast-imaging-to-diagnose-severe-ischemia-in-the-lower-limb-for-patients-with-peripheral-arterial-disease
#12
Sotaro Katsui, Yoshinori Inoue, Kimihiro Igari, Takahiro Toyofuku, Toshifumi Kudo, Hiroyuki Uetake
OBJECTIVE: We propose a new assessment tool to diagnose severe ischemia of the lower limb in peripheral arterial disease, using laser speckle contrast imaging to evaluate heating-induced microcirculatory fluctuations in the proximal and distal sites of the dorsal foot. STUDY DESIGN: A cross-sectional study. METHODS: We recorded the slope describing the behavior of perfusion values (decrease or plateau) following the initial, heating-induced increase in perfusion in 63 feet of patients with clinical signs of peripheral arterial disease...
April 2, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28365947/irreversible-electroporation-nanoknife%C3%A2-treatment-in-the-field-of-hepatobiliary-surgery-current-status-and-future-perspectives
#13
Georgios Kourounis, Patrick Paul Tabet, Demetrios Moris, Alexandros Papalambros, Evangelos Felekouras, Fanourios Georgiades, George Astras, Athanasios Petrou
PURPOSE: We aimed to provide an overview of current understanding on the potential use of irreversible electroporation (IRE) in the field of hepatobiliary surgery with a focus on current results in hepatic and pancreatic cancers, its limitations, and its current directions. METHODS: Through a review of the literature we have gathered the key articles and trials that are shaping our understanding of the current status of IRE and its prospective uses, and organized them in an easily understandable format showcasing the most up to date results...
January 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28363299/reconstruction-of-the-adult-and-pediatric-burned-hand
#14
REVIEW
Ryan P Cauley, Lydia A Helliwell, Matthias B Donelan, Kyle R Eberlin
Thermal injuries of the hand can have a great impact on function. Initial treatment should focus on the prevention of contracture through the use of tissue-sparing techniques and optimized occupational therapy. Surgical intervention should follow the standard reconstructive ladder and can involve several techniques from simple to complex including minimally invasive techniques, such as laser and steroid injection, contracture release and skin grafting, and local tissue rearrangement and regional flaps as well as distant pedicled and free flaps...
May 2017: Hand Clinics
https://www.readbyqxmd.com/read/28360533/effects-of-decompression-on-behavioral-electrophysiologic-and-histomorphologic-recovery-in-a-chronic-sciatic-nerve-compression-model-of-streptozotocin-induced-diabetic-rats
#15
Ping-Hui Wang, Cheng-Chang Yang, Wei-Ren Su, Po-Ting Wu, Shun-Chien Cheng, I-Ming Jou
PURPOSE: To determine susceptibility to decompression surgery in diabetic and nondiabetic peripheral neuropathy using a chronic compression neuropathy model. MATERIALS AND METHODS: Twenty-four streptozotocin-induced diabetic rats were randomly divided into three groups: group I, chronic compression of the left sciatic nerve for 4 weeks with decompression; group II, similar without decompression; and group III, sham exposing the sciatic nerve only. The other 24 nondiabetic rats were assigned to groups IV-VI, which received compression-decompression, compression, and the sham operation, respectively...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28349677/aggressive-tumor-recurrence-after-radiofrequency-ablation-for-hepatocellular-carcinoma
#16
Tae Wook Kang, Hyo Keun Lim, Dong Ik Cha
Image-guided radiofrequency ablation (RFA) is an evolving and growing treatment option for patients with hepatocellular carcinoma (HCC) and hepatic metastasis. RFA offers significant advantages as it is less invasive than surgery and carries a low risk of major complications. However, serious complications, including aggressive tumor recurrence, may be observed during follow-up, and recently, mechanical or thermal damage during RFA has been proposed to be one of the causes of this kind of recurrence. Although the exact mechanism of this still remains unclear, physicians should be familiar with the imaging features of aggressive tumor recurrence after RFA for HCC and its risk factors...
March 2017: Clinical and Molecular Hepatology
https://www.readbyqxmd.com/read/28347598/patellar-tendon-reconstruction-using-an-extended-gastrocnemius-flap-following-cryogenic-injury-to-the-knee
#17
Raymond H Kim, Amanda H Randolph, Conrad J Tirre, Matthew Morrey, Jason M Jennings
Cryogenic thermal necrosis after knee surgery is rare. We describe a patient who presented with an anterior knee soft tissue defect in conjunction with an extensor mechanism deficiency secondary to a cold thermal injury after an anterior cruciate ligament reconstruction. We treated the patient with a single stage surgical procedure combining patellar tendon reconstruction and soft tissue coverage utilizing the superficial portion of the patient's vascularized Achilles tendon attached to a medial gastrocnemius flap...
March 24, 2017: Knee
https://www.readbyqxmd.com/read/28346729/comparison-of-the-safety-of-electrotome-harmonic-scalpel-and-ligasure-for-management-of-thyroid-surgery
#18
Xiaodong Yang, Jian Cao, Yichao Yan, Fangfang Liu, Tao Li, Long Han, Chunxiang Ye, Shuying Zheng, Shan Wang, Yingjiang Ye, Kewei Jiang
BACKGROUND: Energy-based surgical devices, including electrotome, the Harmonic scalpel, and LigaSure, have been widely applied in thyroid surgery, although a comparison of their safety and efficacy has not been reported yet. In this study, we investigated the feasibility of using hemostatic energy-based surgical devices during thyroid surgery in a canine model. METHODS: Twenty-four beagle dogs were randomly divided into the following groups: electrotome (30 kW), electrotome (15 kW), the Harmonic scalpel (output level 3), and LigaSure (middle gear)...
March 27, 2017: Head & Neck
https://www.readbyqxmd.com/read/28341966/efficacy-of-single-dose-gonadotropin-releasing-hormone-agonist-administration-prior-to-magnetic-resonance-guided-focused-ultrasound-surgery-for-symptomatic-uterine-fibroids
#19
Hyun Park, Sang Wook Yoon
PURPOSE: To investigate the effects of a single-dose GnRHa on the thermal ablation of MRgFUS in women with symptomatic fibroids. MATERIALS AND METHOD: In this pilot study, a single-dose GnRHa was administered in 17 patients with a total of 20 fibroids. Volume and scaled signal intensity (SSI) as an objective marker of fluid contents were prospectively followed up with serial MR scans. The control group of 17 patients with 19 fibroids were retrospectively enrolled and compared with GnRHa group in terms of non-perfused volume (NPV) and thermal dosimetry to assess the efficiency of thermal ablation...
March 24, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28341269/ultrasonic-bipolar-and-integrated-energy-devices-comparing-heat-spread-in-collateral-tissues
#20
Megan K Applewhite, Michael G White, Benjamin C James, Layth Abdulrasool, Edwin L Kaplan, Peter Angelos, Raymon H Grogan
BACKGROUND: Integrated devices incorporating ultrasonic and bipolar technology have been used in laparoscopic surgery, however, are not yet incorporated into open operations. Here, we compare thermal spread and recurrent laryngeal nerve (RLN) functional data of the integrated THUNDERBEAT Open Fine Jaw device, the bipolar Ligasure Small Jaw, and the ultrasonic Harmonic Focus for open thyroidectomy. MATERIALS AND METHODS: The three energy devices were compared in a live porcine model using three tissue types including liver, muscle, and thyroid...
January 2017: Journal of Surgical Research
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