scholarly journals Effects of Laser Probes and Computed Tomography Findings on Ureterorenoscopic Laser Lithotripsy Success Rate, Laser Time, Laser Energy Level and Operative Time for Distal Ureteral Stones

2019 ◽  
Vol 6 (3) ◽  
pp. 201-206
Author(s):  
Serdar Çelik ◽  
Ozan Bozkurt ◽  
Işıl Başara ◽  
Özgür Gürboğa ◽  
Ömer Demir ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Energy Level ◽  
Success Rate ◽  
Operative Time ◽  
Laser Energy ◽  
Laser Lithotripsy ◽  
Ureteral Stones ◽  
Laser Probes

scholarly journals Semi-rigid Ureteroscopy and Holmium laser stone dusting for Proximal Ureteral Stones Does Adjuvant Tamsulosin Therapy Increase the Chance of Success?

QJM ◽  
2020 ◽  
Vol 113 (Supplement_1) ◽  
Author(s):  
P H Malky ◽  
A M Emam ◽  
H S Shaker
Keyword(s):  
Success Rate ◽  
Operative Time ◽  
Technical Problem ◽  
Laser Lithotripsy ◽  
Ureteral Stones ◽  
Control Group ◽  
Stone Clearance ◽  
Alpha Blockers ◽  
Group 2 ◽  
Group 1

Abstract Background Alpha blockers decrease peristalsis above and below the stone, which increases the urine bolus and intraureteral pressure above it and lowers intraureteral pressure below it in association with the decrease in basal and micturition pressure, even at the bladder neck; thus, it increases the chance of stone expulsion.We aim to evaluate whether peri-operative tamsulosin in stented ureteroscopic laser lithotripsy for proximal ureteric stones increase the procedure success rate of stone clearance. Since our aim in ureteroscopic treatment of upper ureteric stones is laser dusting rather than stone retrieval, its possible that alpha blockers can improve the access to upper ureter and clearance of fragmented stones. Objective To evaluate whether peri-operative tamsulosin in stented ureteroscopic laser lithotripsy for proximal ureteric stones increase the procedure success rate of stone clearance. Patients and Methods This prospective, randomized, multicenter study included 60 patients and carried out between March 2018 and December 2018 in Police hospital Nasr City and Ain Shams University Hospitals included adult patients (at least 15 years) with proximal ureteral stones (≥ 5mm) scheduled for URS lithotripsy. Results In this study, the overall failure rate was 18.3%. In most cases 8/11(72.7%), failure of the procedure was due to the difficulty experienced in advancing the ureteroscope. We should mention that this technical problem was reported only in 2 (6.7%) patients receiving pre-URS tamsulosin but in 6 (20%) patients of the control group. The mean operative time in this series was significantly shorter operative time in Group 2(51.8min) compared to Group 1(58.8 min).At follow-up 4 weeks after URS, SFR was (86.7% for Group 2 and 66.7% for Group 1). Conclusion Adjunctive tamsulosin therapy prior to laser-assisted semi-rigid URS for the management of proximal ureteral stones improves ureteroscopic access, reduces the operative time and improves the SFR with an acceptable complication rate. Further research should be conducted on a larger scale to evaluate the various predictors of the outcome of URS and analyze the results with different pre-URS tamsulosin time periods in order to consolidate the results and to confirm the conclusion.

scholarly journals Prognostic Factors for the Outcome of Salivary Gland Holmium: YAG Laser Intraductal Lithotripsy

2021 ◽  
pp. 014556132110100
Author(s):  
Shuo-Jen Wang ◽  
Lung-Che Chen ◽  
Yi-Chih Lin ◽  
Yen-Chun Chen ◽  
Luong Huu Dang ◽  
...  
Keyword(s):  
Logistic Regression ◽  
Salivary Gland ◽  
Success Rate ◽  
Operative Time ◽  
Tertiary Care ◽  
Operation Time ◽  
Laser Lithotripsy ◽  
Successful Outcome ◽  
Care Hospital ◽  
Yag Laser

Objectives: Holmium: YAG laser has gained its popularity throughout the years and is used to treat sialolithiasis, which helps to overcome the limitations of traditional sialendoscopic lithotripsy for larger-sized salivary stones. However, little information is available regarding factors predicting the success rate of Holmium: YAG laser intraductal lithotripsy. The purpose of this study is to investigate the factors affecting the success rates of Holmium: YAG laser lithotripsy for salivary stones treatment in a tertiary care hospital. Methods: A retrospective study conducted in patients receiving sialolithiasis surgery under sialendoscopy from May 2013 to March 2015 at Mackay Memorial Hospital, Taiwan. Data on various factors, including patients’ age, gender, glands, size of largest stone, multiple stones (≥2 stones), location of the stone (distal duct, middle duct, proximal duct, and hilum), and operative time. The success of the surgery defined as patients without any complaints such as swelling or tenderness. Logistic regression and Fisher exact tests were employed to examine these factors on the success rate. Results: Fifty-four patients who received sialendoscopy surgery with a mean age of 35.74 years old recruited. Logistic regression identified the operation time exceeding 210 minutes showed 23.497 folds higher odd ratio of having a result of operation failure ( P < .05). Conclusion: The prolonged operation time is the sole independent factor affecting the successful outcome for salivary gland intraductal laser lithotripsy. We recommend operative time be no more than 210 minutes to increase the success rate in salivary gland Holmium: YAG laser intraductal lithotripsy.

scholarly journals Size selection of the Ambu AuraOnce laryngeal mask in Chinese men weighing >70 kg: a pilot study

2021 ◽  
Vol 49 (5) ◽  
pp. 030006052110166
Author(s):  
Jiahui Chen ◽  
Chunhuan Chen ◽  
Wei Xu ◽  
Xiaoguang Zhang
Keyword(s):  
Computed Tomography ◽  
Success Rate ◽  
Fiberoptic Bronchoscopy ◽  
Laryngeal Mask ◽  
Insertion Time ◽  
Air Leakage ◽  
Chinese Men ◽  
Laryngeal Mask Insertion ◽  
Laryngeal Anatomy ◽  
Rate Requirement

Objective To collect computed tomography data of the laryngeal anatomy of Chinese men and to determine the feasibility of using the size 4 Ambu AuraOnce laryngeal mask (Ambu A/S, Copenhagen, Denmark) in Chinese men weighing >70 kg. Methods This prospective study involved men who underwent surgery from May 2018 to January 2019 at Jinshan Hospital. Pharyngeal and laryngeal parameters were measured by computed tomography. The laryngeal mask insertion success rate, requirement for tracheal tube insertion, laryngeal mask insertion time, fiberoptic bronchoscopy grading, air leakage pressure, and pharyngeal complications were analyzed. Results In a comparison of the size 4 and 5 Ambu AuraOnce devices, the first insertion success rate was 100% and 87% and the three-times insertion success rate was 100% and 93%, respectively, with no significant differences. However, the insertion time was significantly different at 19.6 ± 5.9 versus 31.1 ± 11.2 s, respectively, and the proportions of fiberoptic grading levels were also significantly different. There were no significant differences in the air leakage pressure or pharyngeal complications. Conclusion The size 4 Ambu AuraOnce is more adequate than the size 5 for Chinese men weighing >70 kg, with a shorter insertion time and higher fiberoptic bronchoscopic grading.

Japanese multicenter registry evaluating the antegrade dissection reentry with cardiac computed tomography for chronic coronary total occlusion

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
M Habara ◽  
E Tsuchikane ◽  
K Shimizu ◽  
T Kawasaki
Keyword(s):  
Computed Tomography ◽  
Success Rate ◽  
Cardiac Ct ◽  
Cardiac Computed Tomography ◽  
Coronary Intervention ◽  
Puncture Site ◽  
Total Occlusion ◽  
Percutaneous Coronary ◽  
Failure Point ◽  
Procedural Success

Abstract Objective This study was performed to evaluate the efficacy of cardiac computed tomography (CT) for antegrade dissection re-entry (ADR) technique in chronic total occlusion (CTO) percutaneous coronary intervention (PCI). Background Although PCI of CTO is a rapidly evolving field, procedure success rate remains suboptimal. Recently, ADR with Stingray device for CTO-PCI has also evolved to one of the pillar technique of the hybrid algorithm. Although the success rate of the device could be improved, it also remains not always high especially as first crossing strategy. Methods Forty eight patients with total occlusion suitable for revascularization evaluated by baseline coronary angiography and cardiac CT were enrolled in this study from April 2017 to April 2019 from 30 enrolled centers. The primary observation was procedural success. Furthermore, all puncture point with Stingray were analyzed by cardiac CT. In each point, 1) plaques on the isolated myocardial side at distal puncture site (+1 point), 2) any plaques excluded above definition at distal puncture site (+2 points), 3) calcification on both 1 and 2 at distal puncture site (+1 point) were analyzed and calculated the score (Score 0–3) (Figure 1). Results Overall procedure success rate was 95.8% (46/48) and antegrade success rate was 91.3% (42/46). Sixteen cases were succeeded with single guidewire escalation and 32 cases were attempted ADR with Stingray system. Within them, 25 cases were succeeded and 7 cases were observed puncture failure. And 3cases were succeeded with IVUS guide and 2 cases were with retrograde appTechnical success rate with stingray was 78.1% (25/32). Cardiac CT was analyzed 60 puncture sites in 32 cases which were attempted ADR with stingray system (1.88 sites/case). CT score at ADR success point was significantly smaller compare to that at ADR failure point (0.68±1.09 vs 1.77±1.09, p&lt;0.0001). Conclusions Pre procedure Cardiac CT and CT score might be useful for ADR technique in CTO PCI not only for case selection but also for puncture site selection. Figure 1 Funding Acknowledgement Type of funding source: None

Ureteroscopy With Holmium:Yag Laser Lithotripsy for Ureteral Stones in Preschool Children: Analysis of the Factors Affecting the Complications and Success

Urology ◽  
2018 ◽  
Vol 111 ◽  
pp. 162-167 ◽  
Author(s):  
Faruk Kucukdurmaz ◽  
Erkan Efe ◽  
Tayfun Sahinkanat ◽  
Akın Soner Amasyalı ◽  
Sefa Resim
Keyword(s):  
Preschool Children ◽  
Laser Lithotripsy ◽  
Ureteral Stones ◽  
Holmium:Yag Laser ◽  
Factors Affecting

scholarly journals Cone-Beam Computed Tomography-Derived Augmented Fluoroscopy Improves the Diagnostic Yield of Endobronchial Ultrasound-Guided Transbronchial Biopsy for Peripheral Pulmonary Lesions

Diagnostics ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 41
Author(s):  
Ching-Kai Lin ◽  
Hung-Jen Fan ◽  
Zong-Han Yao ◽  
Yen-Ting Lin ◽  
Yueh-Feng Wen ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Success Rate ◽  
Diagnostic Yield ◽  
Study Groups ◽  
Transbronchial Biopsy ◽  
Endobronchial Ultrasound ◽  
Cone Beam ◽  
Ultrasound Guided ◽  
Pulmonary Lesions ◽  
Peripheral Pulmonary Lesions

Background: Endobronchial ultrasound-guided transbronchial biopsy (EBUS-TBB) is used for the diagnosis of peripheral pulmonary lesions (PPLs), but the diagnostic yield is not adequate. Cone-beam computed tomography-derived augmented fluoroscopy (CBCT-AF) can be utilized to assess the location of PPLs and biopsy devices, and has the potential to improve the diagnostic accuracy of bronchoscopic techniques. The purpose of this study was to verify the contribution of CBCT-AF to EBUS-TBB. Methods: Patients who underwent EBUS-TBB for diagnosis of PPLs were enrolled. The navigation success rate and diagnostic yield were used to evaluate the effectiveness of CBCT-AF in EBUS-TBB. Results: In this study, 236 patients who underwent EBUS-TBB for PPL diagnosis were enrolled. One hundred fifteen patients were in CBCT-AF group and 121 were in non-AF group. The navigation success rate was significantly higher in the CBCT-AF group (96.5% vs. 86.8%, p = 0.006). The diagnostic yield was even better in the CBCT-AF group when the target lesion was small in size (68.8% vs. 0%, p = 0.026 for lesions ≤10 mm and 77.5% vs. 46.4%, p = 0.016 for lesions 10–20 mm, respectively). The diagnostic yield of the two study groups became similar when the procedures with a failure of navigation were excluded. The procedure-related complication rate was similar between the two study groups. Conclusion: CBCT-AF is safe, and effectively enhances the navigation success rate, thereby increasing the diagnostic yield of EBUS-TBB for PPLs.

scholarly journals Treatment of Complex Whole Liver Intrahepatic Ductal Stones Using a Patented Stone-Clearance Sheath Combined with Nephroscopic Holmium Laser Lithotripsy

2021 ◽  
pp. 1-4
Author(s):  
Yuancai Xie ◽  
Dingwen Zhong ◽  
Yanda LU ◽  
Donghua Xie ◽  
Xianjin Cheng ◽  
...  
Keyword(s):  
Operative Time ◽  
Laser Lithotripsy ◽  
Holmium Laser ◽  
Control Group ◽  
Observation Group ◽  
Clearance Rates ◽  
Stone Clearance ◽  
Second Stage ◽  
Holmium Laser Lithotripsy ◽  
One Year

Purpose: To investigate the clinical efficacy of nephroscopic laser lithotripsy with the aid of a patented suctioning sheath in treating complicated whole-liver dispersed intrahepatic ductal stones. Methods: From September 2013 to September 2017, 150 patients who were diagnosed with whole-liver dispersed intrahepatic ductal stones were included in this study and were divided into two groups randomly. The control group consists of 75 patients who were treated by traditional surgery combined with choledochoscopic laser lithotripsy. The observation group consists of the other 75 patients who were treated by traditional surgery combined with nephroscopic laser lithotripsy with the aid of the patented sheath. Related treatment outcome parameters were compared. Results: There were no significant differences in first surgery operative time, first surgery bleeding amount, complication and stone clearance rates (P>0.05). However, the second surgery operative time was (63.58±9.84) min while the complication rate was 7.5% in the observation group, significantly less than that of control group (P<0.05). There were significantly higher first-stage and second stage sinus ductal stone clearance rates and final stone clearance rate in the observation group compared to that of control group (P<0.05), while operative times, hospitalization duration and cost, and one year stone recurrent rate were significantly lower (P<0.05). Conclusion: The efficacy of using the patented stone-clearance sheath combined with nephroscopic holmium laser lithotripsy was significant, warrants more extensive clinical adoption.

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