scholarly journals Which Factors Affect the Stress of Intraoperative Orthopedic Surgeons by Using Electroencephalography Signals and Heart Rate Variability?

Sensors ◽  
2021 ◽  
Vol 21 (12) ◽  
pp. 4016
Author(s):  
Ji-Won Kwon ◽  
Soo-Bin Lee ◽  
Sahyun Sung ◽  
Yung Park ◽  
Joong-Won Ha ◽  
...  
Keyword(s):  
Blood Loss ◽  
Low Frequency ◽  
Operation Time ◽  
Intraoperative Blood Loss ◽  
Eeg Signals ◽  
Contributing Factors ◽  
Orthopedic Surgeons ◽  
Beta 2 ◽  
Novice Surgeons ◽  
Stress Parameters

Can we recognize intraoperative real-time stress of orthopedic surgeons and which factors affect the stress of intraoperative orthopedic surgeons with EEG and HRV? From June 2018 to November 2018, 265 consecutive records of intraoperative stress measures for orthopedic surgeons were compared. Intraoperative EEG waves and HRV, comprising beats per minute (BPM) and low frequency (LF)/high frequency (HF) ratio were gathered for stress-associated parameters. Differences in stress parameters according to the experience of surgeons, intraoperative blood loss, and operation time depending on whether or not a tourniquet were investigated. Stress-associated EEG signals including beta 3 waves were significantly higher compared to EEG at rest for novice surgeons as the procedure progressed. Among senior surgeons, the LF/HF ratio reflecting the physical demands of stress was higher than that of novice surgeons at all stages. In surgeries including tourniquets, operation time was positively correlated with stress parameters including beta 1, beta 2, beta 3 waves and BPM. In non-tourniquet orthopedic surgeries, intraoperative blood loss was positively correlated with beta 1, beta 2, and beta 3 waves. Among orthopedic surgeons, those with less experience demonstrated relatively higher levels of stress during surgery. Prolonged operation time or excessive intraoperative blood loss appear to be contributing factors that increase stress.

scholarly journals Efficacy evaluation of three-dimensional printing assisted osteotomy guide plate in accurate osteotomy of adolescent cubitus varus deformity

2019 ◽  
Vol 14 (1) ◽  
Author(s):  
Yuan-Wei Zhang ◽  
Xin Xiao ◽  
Wen-Cheng Gao ◽  
Yan Xiao ◽  
Su-Li Zhang ◽  
...  
Keyword(s):  
3D Printing ◽  
Blood Loss ◽  
Three Dimensional ◽  
Operation Time ◽  
Varus Deformity ◽  
Conventional Group ◽  
Intraoperative Blood Loss ◽  
Cubitus Varus ◽  
Guide Plate ◽  
Significant Difference

Abstract Background This present study is aimed to retrospectively assess the efficacy of three-dimensional (3D) printing assisted osteotomy guide plate in accurate osteotomy of adolescent cubitus varus deformity. Material and methods Twenty-five patients (15 males and 10 females) with the cubitus varus deformity from June 2014 to December 2017 were included in this study and were enrolled into the conventional group (n = 11) and 3D printing group (n = 14) according to the different surgical approaches. The operation time, intraoperative blood loss, osteotomy degrees, osteotomy end union time, and postoperative complications between the two groups were observed and recorded. Results Compared with the conventional group, the 3D printing group has the advantages of shorter operation time, less intraoperative blood loss, higher rate of excellent correction, and higher rate of the parents’ excellent satisfaction with appearance after deformity correction (P < 0.001, P < 0.001, P = 0.019, P = 0.023). Nevertheless, no significant difference was presented in postoperative carrying angle of the deformed side and total complication rate between the two groups (P = 0.626, P = 0.371). Conclusions The operation assisted by 3D printing osteotomy guide plate to correct the adolescent cubitus varus deformity is feasible and effective, which might be an optional approach to promote the accurate osteotomy and optimize the efficacy.

scholarly journals Intraoperative Nice knots assistance for reduction in displaced comminuted clavicle fractures

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Fangning Hu ◽  
Xi Liu ◽  
Fanxiao Liu ◽  
Honglei Jia ◽  
Xiaolong Lv ◽  
...  
Keyword(s):  
Blood Loss ◽  
Rating Scale ◽  
Clavicle Fracture ◽  
Operation Time ◽  
Clinical Results ◽  
Intraoperative Blood Loss ◽  
Traditional Group ◽  
Significant Difference ◽  
Clavicle Fractures ◽  
Displaced Clavicle Fracture

Abstract Purpose The Nice knots have been widely used in orthopedic surgeries to fix torn soft tissue and fracture in recent years. The study aims to investigate the clinical efficacy and prognosis of intraoperative and postoperative Nice Knots-assisted reduction in the treatment of displaced comminuted clavicle fracture. Methods From Jan 2014 to Dec 2019, 75 patients diagnosed with unilateral closed displaced comminuted clavicle fracture were treated with open reduction and internal fixation (ORIF) in this study. Nice knot group (the NK group) included 38 patients and the other 37 patients were in the traditional group (the TK group). The time of operation and the amount of bleeding during operation were recorded. Post-operative clinical outcomes and radiographic results were recorded and compared between these two groups. The Visual Analogue Scale (VAS), Neer score, Rating Scale of the American Shoulder and Elbow Surgeons, Constant-Murley score and complications such as infection, nonunion, implant loosening, fragment displacement and hardware pain were observed in the two groups. Results In the comparison between the two groups, there was no significant difference in age, sex, the cause of displaced clavicle fracture, and other basic information between the two groups. The operation time, intraoperative fluoroscopy time, and intraoperative blood loss were significantly reduced in the NK group (P < 0.01). There were 2 cases of plate fracture in the TK group. The follow-up results showed that there was no significant difference in VAS, Neer score, ASES, and Constant-Murley scores between the two groups. Conclusion The use of Nice knot, in comminuted and displaced clavicle fractures can reduce intraoperative blood loss, shorten operation time, facilitate intraoperative reduction, and achieve satisfactory postoperative clinical results. This study demonstrates that Nice knot is a simple, safe, practical and effective auxiliary reduction method.

scholarly journals Effect of Gum Chewing on Intestinal Functions after Gynecological Operations: A Randomized Controlled Study

2016 ◽  
pp. 1
Author(s):  
Taylan Şenol ◽  
Mesut Polat ◽  
Enis Özkaya ◽  
Gökhan Ünver ◽  
Ateş Karateke
Keyword(s):  
Blood Loss ◽  
Medical Condition ◽  
Operation Time ◽  
Controlled Study ◽  
Bowel Sound ◽  
Intraoperative Blood Loss ◽  
Gum Chewing ◽  
Postoperative Serum ◽  
Intestinal Functions ◽  
Duration Of Operation

<p><strong>OBJECTIVE:</strong> We aimed to assess the efficacy of gum chewing on intestinal functions after gynecological operations.<br /><strong>STUDY DESIGN:</strong> A total of 86 women who underwent gynecological operation with different indications were randomly assigned to 2 groups: Group 1 was assigned to gum chewing after operation (n=52), while Group 2 was directed to routine postoperative care (n=52). Time of first bowel sound and defecation after surgery were recorded to assess the effect of gum chewing. Operation time, blood loss, type of incision, pre and postoperative serum hemoglobin levels were all evaluated.<br /><strong>RESULTS:</strong> There was no difference between groups in terms of age, duration of operation, intraoperative blood loss, pre and postoperative serum hemoglobin levels, duration to first bowel sound, flatulence and defecation (p&gt;0.05). Age (r=0.234, p=0.032), type of incision (r=0.228, p=0.037) were significantly correlated with the time to first bowel sound. Type of incision (r=0.295, p=0.006), duration of operation (r=0.277, p=0.01) and intraoperative blood loss (r=0.298, p=0.006) were significantly correlated with the time to first flatulence. In multivariate regression analyses, none of the variables were found to be significant parameter for time to first bowel sound (p&gt;0.05). <br /><strong>CONCLUSION:</strong> Gum chewing does not affect some of the gastrointestinal functions after gynecological operations and there is no single parameter for time to first bowel sound, first flatulence and first defecation, individual surgical and medical condition differences should be kept in mind while evaluating intestinal functions.</p>

scholarly journals Comparison of early clinical results for the femoral neck system and cannulated screws in the treatment of unstable femoral neck fractures

2021 ◽  
Author(s):  
Xiaoqiang Zhou ◽  
Zhiqiang Li ◽  
Renjie Xu ◽  
Yuanshi She ◽  
Xiangxin Zhang ◽  
...  
Keyword(s):  
Femoral Head ◽  
Femoral Neck ◽  
Blood Loss ◽  
Hospital Stay ◽  
Clinical Efficacy ◽  
Operation Time ◽  
Femoral Neck Fractures ◽  
Femoral Head Necrosis ◽  
Cannulated Screws ◽  
Intraoperative Blood Loss

Abstract Objective: To compare early clinical effects of the femoral neck system (FNS) and three cannulated screws for the treatment of patients with unstable femoral neck fractures.Methods: A retrospective analysis with pair matching of 81 patients who received FNS or cannulated screw internal fixation for Pauwels type-3 femoral neck fracture in our hospital from January 2019 to December 2019 was conducted. Patients who received FNS were the test group, and those who received cannulated screws comprised the control group. Matching requirements were as follows: same sex, similar age and similar body mass index (BMI). A total of 30 pairs were successfully matched, and the average age was 53.84 years. The operation time, intraoperative blood loss, hospital stay, hospitalization cost, postoperative visual analogue scale (VAS) score, time to walking without crutches, Harris score, femoral head necrosis rate and complication rate were compared between the groups.Results: Postoperative re-examination of radiographs showed satisfactory reduction in all patients, and all patients were followed up for 10-22 months. Those in the FNS group had lower postoperative VAS scores, earlier times to walking without crutches, higher Harris scores at the last follow-up and lower complication rates (P<0.05). However, intraoperative blood loss and hospitalization costs were greater in the FNS group (P<0.05). No statistically significant difference in operation time, hospital stay or femoral head necrosis rate was observed between the two groups (P>0.05).Conclusion: For patients with unstable femoral neck fractures, FNS has better clinical efficacy than cannulated screws, though it is also more expensive. The excellent biomechanical performance and clinical efficacy of FNS make it a new choice for the treatment of unstable femoral neck fractures.

scholarly journals Efficacy and Safety of Tranexamic Acid in Bimaxillary Orthognathic Surgery

2020 ◽  
Vol 28 (2) ◽  
pp. 94-104
Author(s):  
Liang Sun ◽  
Rui Guo ◽  
Yi Feng
Keyword(s):  
Blood Transfusion ◽  
Blood Loss ◽  
Tranexamic Acid ◽  
Orthognathic Surgery ◽  
Operation Time ◽  
Controlled Trials ◽  
Allogenic Blood Transfusion ◽  
Intraoperative Blood Loss ◽  
Irrigation Fluid ◽  
Allogenic Blood

Background: Tranexamic acid (TXA) has been widely used during craniofacial and orthognathic surgery (OS). However, results of the literature are inconsistent due to specific type of surgery and a small sample of studies. The purpose of this study was to evaluate the role of TXA in bimaxillary OS. Methods: We performed a comprehensive literature search of PubMed, Cochrane Central Register of Controlled Trials, and EMBASE to identify randomized controlled trials (RCTs) that compared effect of TXA on bimaxillary OS with placebo. Outcomes of interests included intraoperative blood loss, allogenic transfusion, operation time, and volume of irrigation fluid. Random effects models were chosen considering that heterogeneity between studies was anticipated, and I 2 statistics were used to test for the presence of heterogeneity. Results: Totally 6 RCTs were identified. Tranexamic acid resulted in significantly reduced intraoperative blood loss (weighted mean difference [WMD] = −264.82 mL; 95% CI: −380.60 to −149.04 mL) and decreased amounts of irrigation fluid (WMD = −229.23 mL; 95% CI: −399.63 to −58.83 mL). However, TXA had no remarkable impact on risk of allogenic blood transfusion (pooled risk ratio = 0.50; 95% CI: 0.20-1.23), operation time (WMD = −8.71 min; 95% CI: −20.98 to 3.57 min), and length of hospital stay (WMD = −0.24 day; 95% CI: −0.62 to 0.14 day). No TXA-associated severe adverse reactions or complications were observed. Conclusions: Currently available meta-analysis reveals that TXA is effective in decreasing intraoperative blood loss; however, it does not reduce the risk of allogenic blood transfusion in bimaxillary OS.

scholarly journals Clinical Application of a Neurosurgical Robot in Intracranial Ommaya Reservoir Implantation

2021 ◽  
Vol 15 ◽  
Author(s):  
Huan-Guang Liu ◽  
De-Feng Liu ◽  
Kai Zhang ◽  
Fan-Gang Meng ◽  
An-Chao Yang ◽  
...  
Keyword(s):  
Blood Loss ◽  
Minimally Invasive ◽  
Operation Time ◽  
Hole Diameter ◽  
Drainage Tube ◽  
Ommaya Reservoir ◽  
Implantation Technique ◽  
Intraoperative Blood Loss ◽  
Robot Assisted ◽  
Robot Assisted Surgery

Background: The Ommaya reservoir implantation technique allows for bypass of the blood-brain barrier. It can be continuously administered locally and be used to repeatedly flush the intracranial cavity to achieve the purpose of treatment. Accurate, fast, and minimally invasive placement of the drainage tube is essential during the Ommaya reservoir implantation technique, which can be achieved with the assistance of robots.Methods: We retrospectively analyzed a total of 100 patients undergoing Ommaya reservoir implantation, of which 50 were implanted using a robot, and the remaining 50 were implanted using conventional surgical methods. We then compared the data related to surgery between the two groups and calculated the accuracy of the drainage tube of the robot-assisted group.Results: The average operation time of robot-assisted surgery groups was 41.17 ± 11.09 min, the bone hole diameter was 4.1 ± 0.5 mm, the intraoperative blood loss was 11.1 ± 3.08 ml, and the average hospitalization time was 3.9 ± 1.2 days. All of the Ommaya reservoirs were successful in one pass, and there were no complications such as infection or incorrect placement of the tube. In the conventional Ommaya reservoir implantation group, the average operation time was 65 ± 14.32 min, the bone hole diameter was 11.3 ± 0.3 mm, the intraoperative blood loss was 19.9 ± 3.98 ml, and the average hospitalization time was 4.1 ± 0.5 days. In the robot-assisted surgery group, the radial error was 2.14 ± 0.99 mm and the axial error was 1.69 ± 1.24 mm.Conclusions: Robot-assisted stereotactic Ommaya reservoir implantation is quick, effective, and minimally invasive. The technique effectively negates the inefficiencies of craniotomy and provides a novel treatment for intracranial lesions.

scholarly journals Study on the Effect of Removing the Slide Wire Screw on Locking Plate by Nail Groove Reconstruction Method

2021 ◽  
Author(s):  
Guanglei Zheng ◽  
Yingjie Qi
Keyword(s):  
Blood Loss ◽  
Locking Plate ◽  
Operation Time ◽  
Healing Time ◽  
Control Group ◽  
Reconstruction Method ◽  
Intraoperative Blood Loss ◽  
Limb Function ◽  
Experimental Group ◽  
Tungsten Steel

Abstract Background: This paper is to describe and evaluate the nail groove reconstruction method in removing slide wire screw on locking plate. Then compare the method with tungsten steel drilling nail method, to explore a new method of removing slide wire screw on locking plate.Method: A total of 1254 patients with removal fracture internal fixation devices were collected from the Affiliated Hospital of Hangzhou Normal University from July 2015 to September 2021, of which 62 cases met the inclusion and exclusion criteria. All patients were randomly divided into the experimental group and the control group. 31 people per group. There were 19 males and 12 females in the experimental group, the age of patients was 35.68±11.70years; while 18 males and 13 females in the control group, the age of patients was 36.27±10.37years. Nail groove reconstruction method was used in the experimental group, and the tungsten steel drilling nail method was used in the control group. Collect and count surgical-related indicators, the data of two groups were compared and analyzed from four aspects: intraoperative blood loss, operation time, incision healing time and limb function recovery time.Result: All slide wire screws were removed successfully, and all patients had no serious postoperative complications such as internal fixation retention and neurovascular injury. The experimental group was better than the control group in the following three aspects: the amount of intraoperative blood loss, the operative time, the recovery time of limb function, and the differences were statistically significant(p < 0.05). There was no significant difference in incision healing time between the two groups.Conclusion: The nail groove reconstruction method has less damage to the bone and soft tissue, less intraoperative blood loss, shorter operation time, and faster postoperative recovery of limb function. The nail groove reconstruction method is a simple and effective method, it has obvious advantages compared with the traditional method.

scholarly journals Laparoendoscopic Two-Site Myomectomy (LETS-M) Using Conventional Laparoscopic Instruments and The Glove-Port Technique

2021 ◽  
Author(s):  
Pei-Chi Wu ◽  
Bor-Ching Sheu ◽  
Kuan-Ju Huang ◽  
Su-Cheng Huang ◽  
Wen-Chun Chang
Keyword(s):  
Blood Loss ◽  
Operation Time ◽  
Intraoperative Blood Loss ◽  
Tertiary Referral Center ◽  
Experienced Surgeon ◽  
Minimally Invasive Surgical ◽  
Postoperative Hematoma ◽  
Significant Difference ◽  
The Mean ◽  
Glove Port

Abstract We aim to evaluate the surgical outcome of laparoendoscopic two-site myomectomy (LETS-M). The medical records of 204 women receiving LETS-M in a tertiary referral center, including 183 surgeries performed by the experienced surgeon and 21 surgeries performed by 3 well-supervised trainees were retrospectively reviewed. The age of the participants was 39.3±6.4 years. The mean diameter of the largest myoma was 8.5±2.2 cm. The mean weight of the myomas was 281.1±183.1 g. The operation time was 97.6±40.2 min, and the intraoperative blood loss was 99.3±115.2 mL. There were 3 (1%) cases of excessive blood loss (more than 500 mL) and 2 (1%) of postoperative hematoma. The only significant difference between the experienced surgeon and trainees was the operation time (92.3±32.2 min vs. 141.2±54 min, p<.001), while the myoma number, myoma diameter, myoma weight, and intraoperative blood loss were not significantly different. The operation time did not differ among different myoma locations. In multivariate analysis, virginity, myoma number, more than 2 large myomas, and myoma size were independent variables for longer operation times. No patient experienced any major complications. The result revealed that LETS-M is a minimally invasive surgical method that is safe, effective, and easy to learn for managing uterine myoma.

scholarly journals Surgical management of sarcoma in adolescent and young adult patients

2020 ◽  
Author(s):  
Kazuhiko Hashimoto ◽  
Shunji Nishimura ◽  
Naohiro Oka ◽  
Masao Akagi
Keyword(s):  
Survival Rate ◽  
Young Adult ◽  
Blood Loss ◽  
Surgical Margin ◽  
Operation Time ◽  
Adolescent And Young Adult ◽  
Intraoperative Blood Loss ◽  
Physical Status ◽  
American Society ◽  
American Society Of Anesthesiologists

Abstract Objective: To examine the clinical features and outcomes of adolescent and young adult sarcoma patients who underwent surgical management and clarify important factors associated with prognosis. We reviewed 18 young adult sarcoma patients sarcoma patients treated surgically in our hospital. The tumor site, histology, grade, stage, and American Society of Anesthesiologists-Physical Status before surgery, operation time, intraoperative blood loss, complications, surgical margin, local recurrence, metastasis, and outcomes were investigated. The 3-year survival rate was also calculated. We compared survival based on age, grade, and surveyed features of poor outcome cases.Results: The 3-year survival rate was 61.3%. There was no significant difference in survival based on age, grade, operation time, or intraoperative blood loss. Three of five patients who died of the disease had stage ≥ IV at diagnosis. All patients with R1 surgical margins developed recurrence and all those with an American Society of Anesthesiologists-Physical Status ≥ 2 died. Patients with late-stage sarcomas, R1 tumor margin, or high American Society of Anesthesiologists-Physical Status score had poor prognoses. To achieve a favorable outcome in adolescent and young adult sarcoma patients, early detection and obtaining R0≥ surgical margin are essential.

scholarly journals Comparison of Perioperative Outcomes in Open and Laparoscopic Radical Cystectomy with Modified Ureterosigmoidostomy (MainzII): A Retrospective Analysis

2021 ◽  
Author(s):  
Bin Zhang ◽  
Yang He ◽  
Duo Zheng ◽  
Junyao Liu ◽  
Peng Qi ◽  
...  
Keyword(s):  
Blood Loss ◽  
Hospital Stay ◽  
Radical Cystectomy ◽  
Urinary Diversion ◽  
Open Surgery ◽  
Operation Time ◽  
Laparoscopic Group ◽  
Postoperative Hospital Stay ◽  
Intraoperative Blood Loss

Abstract Background: To analyze perioperative conditions and long-term efficacy of open modified ureterosigmoidostomy urinary diversion (OMUUD) in patients with bladder cancer who underwent open radical cystectomy (ORC) and laparoscopic radical cystectomy (LRC).Methods: In this retrospective study, the clinical data of patients who underwent open and laparoscopic radical cystectomy plus open modified ureterosigmoidostomy urinary diversion in our hospital were collected from January 2011 to December 2019. In addition, perioperative data of 56 patients who underwent ORC and OMUUD were compared with those of 118 patients who underwent laparoscopic radical cystectomy (LRC) plus OMUUD. A long-term follow-up was performed to compare the overall survival (OS) and progression-free survival (PFS) rate between the two groups.Results: Results showed that there was no significant difference between ORC+OMUUD group and LRC+OMUUD group in terms of gender, age, body index, pre-operative ASA grade, history of transurethral resection of bladder tumor (TURBT) before surgery, tumor T stage, lymph node dissection range, pathological grade, and positive postoperative surgical margin. The mean operation time in the open group was shorter than that in the laparoscopic group （P<0.001）. Moreover, the estimated intraoperative blood loss（P<0.001）and postoperative hospital stay（P=0.023）were better in the laparoscopic group than in the open group. The incidence of complications between 30 days (P=0.665) and 90 days (P=0.211) time-points after surgery was not significantly different. Similarly, the OS (P=0.237) and PFS (P=0.307) between the two groups were comparable.Conclusion: This study shows that the LRC group has long operation time, but less estimated intraoperative blood loss, short postoperative hospital stay, small trauma, and fast postoperative recovery compared to open surgery. Moreover, the incidence of complications at 30 - and 90-days postoperation, as well as the OS and PFS is not different between laparoscopy and open surgery.

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