734 Intramyocardial high frequency ablation can induce myocardial an-giogenesis. Histomorphology of immediate and long-term results in pig hearts

2005 ◽  
Vol 4 (1) ◽  
pp. 162-162
Keyword(s):  
High Frequency ◽  
Long Term Results

scholarly journals Effective use of various minimally invasive technologies eliminating vertical reflux in the treatment of chronic diseases of the lower limb veins

2020 ◽  
Vol 73 (2) ◽  
pp. 329-331
Author(s):  
Serhiy I. Savolyuk ◽  
Valentyn A. Khodos ◽  
Roman A. Herashchenko ◽  
Vladyslav S. Horbovets
Keyword(s):  
Lower Limb ◽  
High Frequency ◽  
Long Term Results ◽  
Laser Coagulation ◽  
Results Of Treatment ◽  
Functional Classes ◽  
Group 3 ◽  
Group 2 ◽  
Effective Use

The aim: To analyze and evaluate the efficacy of CDLLV treatment, using high-frequency endovascular welding (EVW), endovenous laser coagulation (EVLC) and catheter microfoam echosclerotherapy. Materials and methods: We have treated 329 patients with CDLLV C2-C6 functional classes according to the Clinical Etiological Anatomical Pathophysiology. Of these, 102 patients had vertical reflux eliminated by EVW, in 112 – by EVLC, and in 115 – by catheter microfoam echosclerotherapy. Results: In the EVW group 3 patients (2.94%) had a partial recanalization of coagulated veins 3 months after the procedure. In EVLC group 2 patients (1.79%) also had partial recanalization group after 6 months. In the group of catheter microfoam echosclerotherapy partial recanalization occurred in 3 patients during 3 months of observation, in the period of 6 months – in 2, in the period of 12 months – in 9, in total – in 14 patients (12.17%). The EVW and EVLC methods showed high efficacy of vertical reflux elimination on the great and small subcutaneous veins (GSV/SSV) in CDLLV and have no fundamental differences in the immediate and long-term results of treatment. Microfoam catheter echosclerotherapy leads to a greater number of recanalisations, compared with EVW and EVLC. Conclusions: High-frequency endovenous welding results in complete fibrotic GSV/SSV transformation in 97.06% of patients. Endovascular laser coagulation results in complete fibrotic GSV/SSV transformation in 98.21% of patients. Elimination of vertical reflux by microfoam echosclerotherapy results in complete fibrotic GSV/SSV transformation in 87.83% of patients.

Results of locally advanced laryngopharyngeal and cervical part of esophagus cancers treatment

2016 ◽  
Vol 21 (3) ◽  
pp. 156-159
Author(s):  
Andrey N. Rudyk ◽  
E. I Sigal ◽  
M. V Burmistrov
Keyword(s):  
High Frequency ◽  
Locally Advanced ◽  
Survival Rates ◽  
Pathological Process ◽  
Chemoradiation Therapy ◽  
Treatment Choice ◽  
Long Term Results ◽  
Surgical Method ◽  
Methods Of Treatment

Issues of locally advanced cancers which involve into the pathological process laryngopharynx and cervical part of esophagus remain to be actual till the present time. Unsatisfactory long-term results lead to the absence of common approaches and clear guidelines on the methods of the treatment choice (radiotherapy, chemoradiation therapy, surgery). Many researchers suppose that the foremost decision is to include surgical component into the treatment schemes of such patients. Main surgical method of the treatment is laryngopharyngectomy or laryngopharyngoesophagectomy. It depends on the extension of cancer. Different kinds of grafts (gastric, jejunal and colon) are used for esophageal reconstrution. The high frequency of complications after surgery, low survival rates are main motives for the search of effective methods of treatment.

scholarly journals SURGICAL TREATMENT OF RECURRENT HIATAL HERNIAS

2019 ◽  
Vol 178 (5) ◽  
pp. 69-73
Author(s):  
D. I. Vasilevsky ◽  
G. T. Bechvaya ◽  
A. M. Ahmatov
Keyword(s):  
Surgical Treatment ◽  
Hiatal Hernia ◽  
High Frequency ◽  
Common Type ◽  
Long Term Results ◽  
Revision Operation ◽  
Surgical Interventions ◽  
The People ◽  
Visceral Anatomy

OBJECTIVE. Hiatal hernias are the most common type of visceral anatomy disorder. The unresolved problem of surgical treatment of this pathology remains the high frequency of its relapse. Currently, it is believed that repeated surgical interventions for hiatal hernia are technically difficult, carry a high risk of complications and have unsatisfactory long-term results.MATERIAL AND METHODS. In the period from 2015 to 2019, 55 patients with this pathology were operated. In 52 (94.5 %) cases, the revision operation was performed laparoscopically, in 3 (5.5 %) – through left-side thoracotomy. The technique of the operation implied the removal of hiatal hernia and the implementation of antireflux reconstruction. In five (9.9 %) patients with a shortened esophagus, the fundoplication wrap was originally created in the chest; in 50 (90.1 %), normal anatomy was restored.RESULTS. Long-term results ranging from 12 to 48 months were evaluated in 53 (96.4 %) cases. The natural position of the esophagus and stomach in relation to the diaphragm was detected in 43 (81.1 %) patients, relapse of hiatal hernia – in 5 (9.4 %). In 5 patients, the fundoplication wrap formed in the chest was functional. The absence of gastroesophageal reflux was observed in 41 (91.8 % of patients who had GERD before surgery). In 4 (8.8 %) cases, including one patient with antireflux reconstruction in the chest, a relapse of the disease occurred.CONCLUSION. The presented results allowed the surgical treatment of recurrent hiatal hernias reasonable and effective.The authors declare no conflict of interest.The authors confirm that they respect the rights of the people participated in the study, including obtaining informed consent when it is necessary, and the rules of treatment of animals when they are used in the study. Author Guidelines contains the detailed information.

scholarly journals TREATMENT AND RECURRENCE PREVENTION OF ACUTE ADHESIVE INTESTINAL OBSTRUCTION

2017 ◽  
Vol 9 (1) ◽  
pp. 68-72 ◽  
Author(s):  
B P Filenko ◽  
V P Zemlyanoy ◽  
P A Kotkov
Keyword(s):  
Surgical Treatment ◽  
Intestinal Obstruction ◽  
High Frequency ◽  
Unsolved Problem ◽  
Preventive Measures ◽  
Long Term Results ◽  
Results Of Treatment ◽  
Adhesive Intestinal Obstruction ◽  
Surgical Operations

Surgical treatment of acute adhesive intestinal obstruction is an unsolved problem due to the high frequency of relapses. The aim of this work was to improve the results of treatment of patients with acute adhesive intestinal obstruction by preventive measures improvement. The paper set out the principles of curative and prophylactic algorithm, that can help to reduce the frequency of relapses and improve long-term results. The algorithm includes operative treatment using endovideosurgical access and differentiated approach to the use of preventive measures. The best results were achieved by per- forming planned surgical operations.

The Case for Small Fenestra Stapedectomy

1978 ◽  
Vol 86 (3) ◽  
pp. ORL-488-ORL-491 ◽  
Author(s):  
Gordon Dill Long Smyth
Keyword(s):  
High Frequency ◽  
Bone Conduction ◽  
Long Term Results

Eight hundred stapedectomies were analyzed to evaluate the long-term results with four prostheses. It was concluded that limitation of fenestra size played a most important part in the outcome of stapedectomy, especially in regard to the preservation of high-frequency bone conduction response over prolonged periods. Other advantages deriving from small fenestra stapedectomy included significantly fewer fistulae and severe sensorineural losses.

Long-term results of posteromedial hypothalamic deep brain stimulation for patients with resistant aggressiveness

2013 ◽  
Vol 119 (2) ◽  
pp. 277-287 ◽  
Author(s):  
Cristina V. Torres ◽  
Rafael G. Sola ◽  
Jesús Pastor ◽  
Manuel Pedrosa ◽  
Marta Navas ◽  
...  
Keyword(s):  
Deep Brain Stimulation ◽  
Aggressive Behavior ◽  
Brain Stimulation ◽  
High Frequency ◽  
Long Term Results ◽  
High Frequency Stimulation ◽  
Frequency Stimulation ◽  
Deep Brain

Object Erethism describes severe cases of unprovoked aggressive behavior, usually associated with some degree of mental impairment and gross brain damage. The etiology can be epileptic, postencephalitic, or posttraumatic, or the condition can be caused by brain malformations or perinatal insults. Erethism is often refractory to medication, and patients must often be interned in institutions, where they are managed with major restraining measures. The hypothalamus is a crucial group of nuclei that coordinate behavioral and autonomic responses and play a central role in the control of aggressive behavior. Deep brain stimulation (DBS) of the posteromedial hypothalamus (PMH) has been proposed as a treatment for resistant erethism, although experience with this treatment around the world is scarce. The objective of this study was to examine the long-term outcome of PMH DBS in 6 patients with severe erethism treated at the authors' institution. Methods Medical records of 6 patients treated with PMH DBS for intractable aggressiveness were reviewed. The therapeutic effect on behavior was assessed by the Inventory for Client and Agency Planning preoperatively and at the last follow-up visit. Results Two patients died during the follow-up period due to causes unrelated to the neurosurgical treatment. Five of 6 patients experienced a significant reduction in aggressiveness (the mean Inventory for Client and Agency Planning general aggressiveness score was −47 at baseline and −25 at the last follow-up; mean follow-up 3.5 years). Similar responses were obtained with low- and high-frequency stimulation. In 4 cases, the patients' sleep patterns became more regular, and in 1 case, binge eating and polydipsia ceased. One of the 3 patients who had epilepsy noticed a 30% reduction in seizure frequency. Another patient experienced a marked sympathetic response with high-frequency stimulation during the first stimulation trial, but this subsided when stimulation was set at low frequency. A worsening of a previous headache was noted by 1 patient. There were no other side effects. Conclusions In this case series, 5 of 6 patients with pathological aggressiveness had a reduction of their outbursts of violence after PMH DBS, without significant adverse effects. Prospective controlled studies with a larger number of patients are needed to confirm these results.

scholarly journals Comparison of 10-kHz High-Frequency and Traditional Low-Frequency Spinal Cord Stimulation for the Treatment of Chronic Back and Leg Pain

Neurosurgery ◽  
2016 ◽  
Vol 79 (5) ◽  
pp. 667-677 ◽  
Author(s):  
Leonardo Kapural ◽  
Cong Yu ◽  
Matthew W. Doust ◽  
Bradford E. Gliner ◽  
Ricardo Vallejo ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Back Pain ◽  
Pain Relief ◽  
Spinal Cord Stimulation ◽  
High Frequency ◽  
Low Frequency ◽  
Leg Pain ◽  
Long Term Results ◽  
End Point

Abstract BACKGROUND: Pain relief with spinal cord stimulation (SCS) has focused historically on paresthesias overlapping chronically painful areas. A higher level evidence supports the use of SCS in treating leg pain than supports back pain, as it is difficult to achieve adequate paresthesia coverage, and then pain relief, in the low back region. In comparison, 10-kHz high-frequency (HF10 therapy) SCS therapy does not rely on intraoperative paresthesia mapping and remains paresthesia-free during therapy. OBJECTIVE: To compare long-term results of HF10 therapy and traditional low-frequency SCS. METHODS: A pragmatic randomized, controlled, pivotal trial with 24-month follow-up was conducted across 11 comprehensive pain treatment centers. Subjects had Visual Analog Scale scores of ≥5.0/10.0 cm for both back and leg pain, and were assigned randomly (1:1) to receive HF10 therapy or low-frequency SCS. The primary end point was a responder rate, defined as ≥50% back pain reduction from baseline at 3 months with a secondary end point at 12 months (previously reported). In this article, 24-month secondary results are presented. Non-inferiority was first assessed, and if demonstrated the results were tested for superiority. RESULTS: In the study, 198 subjects were randomized (101 HF10 therapy, 97 traditional SCS). One hundred seventy-one subjects (90 HF10 therapy, 81 traditional SCS) successfully completed a short-term trial and were implanted. Subjects averaged 54.9 ± 12.9 years old, 13.6 ± 11.3 years since diagnosis, 86.6% had back surgery, 88.3% were taking opioid analgesics. At 3 months, 84.5% of implanted HF10 therapy subjects were responders for back pain and 83.1% for leg pain, and 43.8% of traditional SCS subjects were responders for back pain and 55.5% for leg pain (P <.001 for both back and leg pain comparisons, non-inferiority and superiority). At 24 months, more subjects were responders to HF10 therapy than traditional SCS (back pain: 76.5% vs 49.3%; 27.2% difference, 95% CI, 10.1%-41.8%; P <.001 for non-inferiority and superiority; leg pain: 72.9% vs 49.3%; 23.6% difference, 95% CI, 5.9%-38.6%; P <.001 for non-inferiority and P =.003 for superiority). Also at 24 months, back pain decreased to a greater degree with HF10 therapy (66.9% ± 31.8%) than traditional SCS (41.1% ± 36.8%, P <.001 for non-inferiority and superiority). Leg pain also decreased to a greater degree with HF10 therapy (65.1% ± 36.0%) than traditional SCS (46.0% ± 40.4%, P <.001 for non-inferiority and P =.002 for superiority). CONCLUSION: This study demonstrates long-term superiority of HF10 therapy compared with traditional SCS in treating both back and leg pain. The advantages of HF10 therapy are anticipated to impact the management of chronic pain patients substantially.

scholarly journals Long-term Results of a Novel Minimally Invasive High-frequency Deep Sclerotomy Ab Interno Surgical Procedure for Glaucoma

2012 ◽  
Vol 06 (01) ◽  
pp. 17 ◽  
Author(s):  
Bojan Pajic ◽  
Brigitte Pajic-Eggspuehler ◽  
Ivan Haefliger ◽  
Farhad Hafezi ◽  
◽  
...  
Keyword(s):  
High Frequency ◽  
Open Angle Glaucoma ◽  
Glaucoma Surgery ◽  
Long Term Results ◽  
Operation Technique ◽  
Outflow Resistance ◽  
Term Study ◽  
Long Term Study ◽  
Ab Interno

High-frequency deep sclerotomy (HFDS) glaucoma surgery is a newab internoprocedure to lower the intraocular pressure in open-angle glaucoma. Using high-frequency energy, six small pockets are formed which significantly reduce the outflow resistance for aqueous humour. This article presents the impressive results of a long-term study about the HFDS glaucoma procedure and demonstrates its efficacy and safety. The operation technique and the devices used for a successful HFDS glaucoma intervention are described step by step.

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