L'uretere retrocavale: Embriogenesi e correzione laparoscopica con accesso retroperitoneale in un caso ad ansa bassa

1997 ◽  
Vol 64 (1_suppl) ◽  
pp. 18-22
Author(s):  
C. Trombetta ◽  
G. Savoca ◽  
G. Liguori ◽  
M. Raber ◽  
A. Lissiani ◽  
...  
Keyword(s):  
Operating Time ◽  
Oral Intake ◽  
Operation Time ◽  
Ureteral Stent ◽  
Surgical Wound ◽  
Extraperitoneal Approach ◽  
Intravenous Urogram ◽  
Minimal Morbidity ◽  
Urologic Surgery ◽  
Laparoscopic Techniques

With the minimal morbidity attained using laparoscopy, its application in urologic surgery has been increasing. Using laparoscopic techniques we successfully completed the transposition and re-anastomosis of a retrocaval right ureter. Operation time was 240 minutes. The patient was allowed to walk on the first post-operative day and resumed oral intake on the second day. Administration of analgesics was not required. The ureteral stent was removed on the 24th day after operation. An intravenous urogram three months after operation showed a decrease in hydronephrosis. Laparoscopic correction of retrocaval ureter by extraperitoneal approach is a safe, feasible technique, avoiding a large surgical wound with the definite advantage of minimal disfigurement. Operating time is considerably shorter compared to the peritoneal approach as described by Baba (240’ vs 560’).

EFFECT OF OPERATING TIME OF THE WELLS IN THE STEADY DRAINAGE MODE BEFORE STOPPING ON THE RESULTS OF THE STUDY OF PRESSURE BUILD-UP CURVES

2017 ◽  
pp. 48-50
Author(s):  
E. F. Gilfanov
Keyword(s):  
Operating Time ◽  
Previous History ◽  
Operation Time ◽  
Pressure Recovery ◽  
Recovery Curve ◽  
History Of ◽  
Accuracy Of Results ◽  
Theoretical Pressure

Operation time of the well before stopping for investigating the pressure recovery curve in hydrodynamic studies is an important parameter affecting the quality and accuracy of results of research processing. Comparing the actual and theoretical pressure curves and the derivative, it’s possible to eliminate the uncertainty in the choice of previous history of the well operation.

scholarly journals Laparoscopic total extraperitoneal approach for repair of a giant inguinal hernia

2019 ◽  
Vol 6 (9) ◽  
pp. 3375
Author(s):  
Paritosh Gupta ◽  
Amanpriya Khanna ◽  
Chinmay Arora ◽  
Dhruv N. Kundra
Keyword(s):  
Inguinal Hernia ◽  
Surgical Repair ◽  
Upright Position ◽  
Extraperitoneal Approach ◽  
Inguinal Hernias ◽  
Total Extraperitoneal ◽  
Laparoscopic Techniques

Giant inguinal hernias are typically described as those which reach patient’s mid-thigh level in upright position. These present a challenge to the surgeon as surgical repair is technically challenging. Although conventionally open repairs have been done for giant inguinal hernias more recently laparoscopic techniques are being adopted. Total extra peritoneal (TEP) and trans abdominal pre peritoneal (TAPP) are two common laparoscopic approaches used. Here we present a case of a 64-year-old patient with a long standing giant inguinal hernia. Hernia was repaired with a TEP approach and patient’s recovery was satisfactory.

scholarly journals The effectiveness and appropriateness of Interval Laparoscopic Appendectomy on adult appendiceal mass, a retrospective cohort

2019 ◽  
Author(s):  
Shiro Fujihata ◽  
Hidehiko Kitagami ◽  
Yosuke Kitayama ◽  
Ayumi Suzuki ◽  
Moritsugu Tanaka ◽  
...  
Keyword(s):  
Surgical Treatment ◽  
Laparoscopic Appendectomy ◽  
Perioperative Complications ◽  
Oral Intake ◽  
Operation Time ◽  
Appendiceal Mass ◽  
Uncomplicated Appendicitis ◽  
Objective Parameter ◽  
Significant Difference ◽  
Non Surgical Treatment

Abstract Background: Appendiceal mass sometimes requires extended resection and difficult to treat postoperative complications. Interval appendectomy has been performed mainly in the field of pediatric surgery to avoid them. Recently, there are a few reports on interval laparoscopic appendectomy (ILA). We examined not only the safety and effectiveness of ILA for adult appendiceal mass (AAM), but also the appropriateness of ILA for which cases should be treated non-surgically for ILA or converted to surgical treatment. Methods: Among 956 appendectomies performed between April 2012 and March 2018, there were 49 cases of AAM, of which 34 cases underwent ILA; ILA group. The safety and efficacy of ILA were examined by comparing with 477 cases of adult uncomplicated appendicitis underwent laparoscopic appendectomy (LA); LA group. The appropriateness of ILA was examined by comparing with the remaining 15 cases of AAM; non-ILA group. Results: The ILA group had a longer operation time than the LA group, but the postoperative hospital stay was shorter, and no significant difference were found in the bleeding volume, the days required for oral intake of solid food, and the perioperative complications. Examining the factors for failure of non-surgical treatment or relapse of inflammation during interval period, higher WBC day3 / day0 was found to be an independent risk factor. Conclusion: ILA against AAM was almost as safe and effective as LA for adult uncomplicated appendicitis. WBC day3 / day0 may be effective as an objective parameter for judging the termination of non-surgical treatment for ILA. This determination to convert ineffective non-surgical treatment to surgical treatment earlier may reduce the burden on the patient.

scholarly journals A Multilayer Genetic Algorithm for Automated Guided Vehicles and Dual Automated Yard Cranes Coordinated Scheduling

2020 ◽  
Vol 2020 ◽  
pp. 1-13
Author(s):  
Qianru Zhao ◽  
Shouwen Ji ◽  
Wenpeng Zhao ◽  
Xinling De
Keyword(s):  
Genetic Algorithm ◽  
Energy Consumption ◽  
Operating Time ◽  
Operation Time ◽  
Complex Model ◽  
Automated Guided Vehicles ◽  
Total Energy Consumption ◽  
Equipment Operation ◽  
Storage Location ◽  
Calculation Results

At present, a lot of studies on automatic terminal scheduling are aimed at the shortest operating time. An effective way to reduce the operating time is to increase the amount of operating equipment. However, people often ignore the additional costs and energy consumption caused by increasing the amount of equipment. This paper comprehensively considers the two aspects of the equipment operation time and equipment quantity matching. With the minimum total energy consumption of the operating equipment as the objective function, a cooperative scheduling model of Automated Guided Vehicles (AGVs) and dual Automated Yard Cranes (AYCs) is established. In the modelling process, we also considered the interference problem between dual Automated Yard Cranes (AYCs). In order to solve this complex model, this paper designs an improved multilayer genetic algorithm. Finally, the calculation results from CPLEX and a multilayer genetic algorithm are compared, and the effectiveness of the model and algorithm is proved by experiments. In addition, at the same time, it is proved that it is necessary to consider the interference problem of dual Automated Yard Cranes (AYCs), and the optimal quantity matching scheme for the equipment and the optimal temporary storage location is given.

scholarly journals SILS Incisional Hernia Repair: Is It Feasible in Giant Hernias? A Report of Three Cases

2011 ◽  
Vol 2011 ◽  
pp. 1-3 ◽  
Author(s):  
Umut Barbaros ◽  
Tugrul Demirel ◽  
Aziz Sumer ◽  
Ugur Deveci ◽  
Mustafa Tukenmez ◽  
...  
Keyword(s):  
Incisional Hernia ◽  
Abdominal Wall ◽  
Single Incision ◽  
Anterior Abdominal Wall ◽  
Oral Intake ◽  
Operation Time ◽  
Incisional Hernia Repair ◽  
Composite Mesh ◽  
First Case ◽  
The Mean

Aim. Three incisional ventral abdominal wall hernias were repaired by placing a 20 × 30 cm composite mesh via single incision of 2 cm. Methods. All three cases had previous operations and presented with giant incisional defects clinically. The defects were repaired laparoscopically via single incision with the placement of a composite mesh of 20 × 30 cm. Nonabsorbable sutures were needed to hang and fix the mesh only in the first case. Double-crown technique was used in all of the cases to secure the mesh to the anterior abdominal wall. Results. The mean operation time was 120 minutes. The patients were mobilized and led for oral intake at the first postoperative day. No morbidity occurred. Conclusion. Abdominal incisional hernias can be repaired via single incision with a mesh application in experienced centers.

Rainwater propeller pumps structural integrity

2019 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Sergiu Valentin Galatanu ◽  
Sebastian Muntean ◽  
Liviu Marsavina ◽  
Iulian Ionut Ailinei ◽  
Dan Micota
Keyword(s):  
Shear Stress ◽  
Structural Integrity ◽  
Maximum Shear Stress ◽  
Operating Time ◽  
Operation Time ◽  
Technical Solution ◽  
Catastrophic Events ◽  
Impeller Blade ◽  
Content Type ◽  
Technical Solutions

Purpose The purpose of this paper is to focus on the structural integrity of the rainwater propeller pumps installed in the municipal wastewater treatment plant (WTP). Design/methodology/approach A numerical analysis is performed to determine the maximum shear stress on the fasten bolts. The rainwater propeller pump is examined in operation at normal conditions and when one blade is progressively blocked. Findings The failure mechanism of the rainwater pump impeller is determined. Research limitations/implications The fibbers and wastes are discharged together with rainwater during storms with these types of pumps to avoid the flood of the WTP. Several catastrophic events have occurred in service due to the fibbers clog the gap between the impeller blades and the pump casing. The clogging process is partially understood so actual technical solutions deal with effects rather the main causes. Practical implications The operation time of all seven rainwater pumps installed in Timisoara’s WTP is investigated. Climate changes in Banat region and new waste properties found in the wastewater require appropriate technical solutions. A technical solution is proposed based on these investigations to extend the operation time and to diminish the operation and maintenance costs. Social implications These large pumps are installed in the urban sewage centralised system implemented in the most cities. The access to the sewerage network is a requirement of any community, regardless of the social status. Originality/value The fracture surfaces of both fastening bolts of the rainwater pump impellers produced in service are examined. As a result, it has been identified that the catastrophic events are due to the brittle fracture of both fasten bolts between the impeller blades and the pump hub, respectively. The catastrophic events of the rainwater propeller pumps are directly correlated to the clog level of the impeller. The numerical simulation is performed to determine the maximum shear stress on the fasten bolts. The case with pump operating at normal conditions is performed identifying its vulnerabilities to clog conditions. Next, one impeller blade is progressively blocked considering three time stop scenarios associated with different clog levels. Conclusively, the operating time of the rainwater pump up to the catastrophic failure is correlated to the clog level of the impeller.

scholarly journals Endoscopic, Single-Session Management of Encrusted, Forgotten Ureteral Stents

Medicina ◽  
2019 ◽  
Vol 55 (3) ◽  
pp. 58 ◽  
Author(s):  
Volkan Ulker ◽  
Orcun Celik
Keyword(s):  
Hospital Stay ◽  
Treatment Options ◽  
Operating Time ◽  
Operation Time ◽  
Ureteral Stents ◽  
Single Session ◽  
Extracorporeal Shock Wave ◽  
Clavien Grade ◽  
Grade Ii ◽  
The Mean

Background and Objectives: Remained or forgotten ureteral double-J stents may cause serious complications. Removing of an encrusted, forgotten stent can be challenging. We present our experience with heavily encrusted ureteral stents and discuss the endourologic treatment options as well as their effectivity. Materials and Methods: Eleven men and six women (mean 48.58 ± 14.48 years of age) with 18 encrusted forgotten stents (mean 16.4 ± 13.25 months of indwelling) were treated at our clinic. All patients underwent the operation after negative urine cultures were obtained. Their medical records were retrospectively reviewed and analyzed in terms of number of interventions required to remove the stent, operation time, complications, hospital stay and stone-free rate. Results: According to the Forgotten-Encrusted-Calcified (FECal) classification, the most common form of stent encrustation was grade III (64.7%) and 17.6% of the stents were fragmented. Four of 17 patients were initially treated with extracorporeal shock-wave lithotripsy. The patients required a mean of two endoscopic interventions for removing the encrusted stent and all stents were removed endoscopically in a single session. The mean operating time was 63.3 ± 41.8 minutes. Cystolithotripsy followed by ureteroscopy was the most common intervention (41.1%). Of the 17 patients, peroperative and postoperative complications were Clavien grade I in two, grade II in two and grade IIIb in one. The mean hospital stay was 1.3 ± 0.99 days. All patients were stone-free after a month of stent removal. Conclusions: The endourological removal of the encrusted forgotten stents in a single session is feasible and effective with a minimal morbidity. The treatment strategy should be to minimize the number of interventions.

scholarly journals Sutureless hemorrhoidectomy vs open hemorrhoidectomy: a prospective study in a regional hospital of Western Nepal

2015 ◽  
Vol 3 (2) ◽  
pp. 121-123
Author(s):  
P Ghimire ◽  
NV Gurung ◽  
PK Upadhaya ◽  
S Shrestha ◽  
A Gurung ◽  
...  
Keyword(s):  
Hospital Stay ◽  
Demographic Data ◽  
Operating Time ◽  
Operation Time ◽  
Regional Hospital ◽  
Time Duration ◽  
Duration Of Symptoms ◽  
Sutureless Technique ◽  
Open Hemorrhoidectomy ◽  
Early Return

Background: The aim of this study is to compare sutureless Hemorroidectomy with Conventional Open Hemorrhoidectomy in terms of safety and clinical efficacy.Method: A prospective analytical study of 60 operated patients (a nonrandomized cohort) was carried out by following up from admission to 1 month period after hospital discharge in between July, 2013 to February, 2014 in Western Regional Hospital, Pokhara, Nepal. Demographic data, clinical data, mean operation time, duration of hospital stay, number of parenteral analgesic injections and post-operative complications between the two groups were recorded and analyzed.Result: There were no statistically significant differences between the two groups in terms of age, gender, duration of symptoms, grade of the hemorrhoid(s), or number of hemorrhoids resected. The mean operating time for LigaSure sutureless hemorrhoidectomy was significantly shorter than that for the Open hemorrhoidectomy (P < 0.001). Patients treated with the LigaSure technique had less blood loss, a better pain score (P < 0.001), less parenteral analgesic requirement (P < 0.001), shorter hospital stay (P < 0.001), and early return to work (P < 0.01). Conclusion: Sutureless Technique is safe and effective as compared to Conventional Open Hemorrhoidectomy for grade III and IV hemorrhoids.Nepal Journal of Medical Sciences Vol.3(2) 2014: 121-123

PS01.228: THORAX AFFECTS OPERATION TIME IN VATS ESOPHAGECTOMY FOR PATIENTS WITH ESOPHAGEAL CANCER

2018 ◽  
Vol 31 (Supplement_1) ◽  
pp. 114-115
Author(s):  
Shinsuke Takeno ◽  
Fumiaki Kawano ◽  
Kousei Tashiro ◽  
Rouko Hamada ◽  
Takashi Wada ◽  
...  
Keyword(s):  
Conflicts Of Interest ◽  
Team Building ◽  
Operating Time ◽  
Operation Time ◽  
Esophageal Surgery ◽  
Preoperative Treatment ◽  
Rib Cage ◽  
Factors Affecting ◽  
Preoperative Ct ◽  
Surgical Difficulty

Abstract Background Thoracoscopic esophagectomy (TE) was reported that increased morbidity in the National Clinical Data analysis in Japan and technical proficiency is required as the esophageal surgery team. The aim of this study is to assess the degree of surgical difficulty from operation time and to applicate for esophageal surgery team-building and the education of next-generation. Methods Consecutive initial 33 cases by the same operator was statistically examined concerning the correlation between chest operation time and the empirical effect of the time shortening, BMI, obstructive pulmonary disorders, Rib cage area, tumor progression, preoperative treatment as an indicator of the degree of surgical difficulty. Rib cage area measured in the preoperative CT Imaging. Results As the factors affecting the extension of operating time, the narrower upper rib cage area correlated with the prolonged operation time in the univariate (P = 0.0279) and multivariate (P = 0.0125) analysis. Empirical time reduction (P = 0.0429) also was correlated with chest operation time. In addition, there was a significant correlation between chest operation time and blood loss (P = 0.0007). Conclusion In the training of TE, operating surgeon or first assistant should start from the patient with broad upper rib cage area in chest CT. Disclosure All authors have declared no conflicts of interest.

Laparoscopic cauterization of hernia sac in girls; the Burnia technique

2020 ◽  
Author(s):  
Sabriye Dayı
Keyword(s):  
Inguinal Hernia ◽  
Hernia Repair ◽  
Inguinal Hernia Repair ◽  
Abdominal Cavity ◽  
Operation Time ◽  
Contralateral Side ◽  
Hernia Sac ◽  
Inguinal Hernias ◽  
Laparoscopic Techniques

INTRODUCTION: Inguinal hernia repair is one of the most common surgical procedures in pediatric surgery. In parallel with the advances in the field of medicine, various laparoscopic techniques have been developed in inguinal hernia repair. The Burnia technique is one of the latest published techniques and it is the cauterization of the inguinal hernia sac laparoscopically without using sutures in girls. The aim of this study is the investigation of the use of Burnia technique in clinical practice, and its postoperative outcomes. Any article concerning the use of this technique in Turkey has not been encountered. METHODS: The demographic features of patients, preoperative, peroperative, postoperative and follow-up results of 41 patients who had been operated with Burnia technique by a single surgeon within 2 years were reviewed retrospectively. Laparoscopically, the camera was first placed at an inclination of 30 degrees to the umbilical region using Hasson technique, and then, a single port was used for cauterization of the hernia sac. The Hernia sac was pulled into the abdominal cavity and cauterized. RESULTS: Burnia technique was applied to 62 inguinal hernia sacs in 41 girls. Their ages ranged from 1.5 to 16 years (median 36 months) with body weights ranging between 3.5 kg-40 kg (median 12 kg). Preoperatively 15 patients had right (37%), 19 patients left (46%), 7 patients bilateral inguinal hernias (17%). During surgery, 14 of the unilateral inguinal hernias were found to have a hernia sac on the contralateral side, and the rate of bilateral hernia increased to 51 percent. In one patient ovary was in the inguinal canal, and after its reduction, we proceeded with the operation Unexpectedly. in one patient, right ovarian torsion was detected which was detorsioned, and hernia surgery was performed in the same session. The duration of the operation was 5-35 min (median 15 min) for unilateral and 8-45 min (median 20 minutes) for bilateral hernias. None of these patients developed peroperative and postoperative complications. Follow-up time was minimum 10 months, and maximum 3 years. Recurrence was not detected. DISCUSSION AND CONCLUSION: Burnia technique seems to be effective and safe. The contralateral side and other intra-abdominal pathologies are explored. The cosmetic appearance is its another advantage. The operation time is very short due to the fact that only the hernia sac is cauterized. Comparison of this technique with other laparoscopic techniques is planned in the future study.

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