Anesthesia, Essays and Researches最新文献

{"title":"Comparison of Trocar Site versus Trocar Site Plus Intraperitoneal Instillation of Local Anesthetic for Shoulder Pain Following Laparoscopic Abdominal Surgery","authors":"Sheerin Lysander, G. Kumar, Anusha Balasubramanian, Rajarajeswaran Krishnan, M. Raghuraman, S. Narayanan","doi":"10.4103/aer.aer_156_21","DOIUrl":"https://doi.org/10.4103/aer.aer_156_21","url":null,"abstract":"Background: Laparoscopic surgery in recent times has noteworthy advantages over conventional surgery, yet recovery is prolonged due to debilitating shoulder tip pain (STP) and operated site pain. Various studies have compared the effect of trocar site, intraperitoneal instillation of local anesthetic (LA) for pain relief while only a few studies have tested the combination of these two techniques. Hence, this study was undertaken to compare the combination of these two techniques versus trocar site alone for STP particularly. Subjects and Methods: This prospective, randomized, comparative study was conducted on 52 patients who were undergoing laparoscopic abdominal surgery. The patients were allocated into either of the two groups. Group I (n = 26): trocar site infiltration (20 mL) and intraperitoneal instillation (20 mL) of 0.25% levobupivacaine and Group II (n = 26): trocar site infiltration (20 mL) of 0.25% levobupivacaine and saline (20 mL) intraperitoneally. Postoperative STP was the primary outcome while surgical site pain, nausea, and vomiting were secondary outcomes. Results: There were no statistically significant differences between the groups with regard to shoulder pain, surgical site pain, total rescue analgesics, and incidence of nausea and vomiting (P > 0.05). Conclusion: Trocar site infiltration with intraperitoneal instillation of LA or trocar site infiltration alone was found to be equally effective. However, we suggest that it is better to provide a combination of trocar site infiltration plus intraperitoneal instillation of LA if we have to restrict opioid usage such as in day-care surgeries.","PeriodicalId":7798,"journal":{"name":"Anesthesia, Essays and Researches","volume":"144 1","pages":"375 - 378"},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77543074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prospective Randomized Study Comparing the Usefulness of Dexmedetomidine versus Esmolol in Blunting Hemodynamic Responses to Intubation in Surgical Patients","authors":"Roniya Roy, Rajesh Kesavan, S. Rajan, Niveditha Kartha, L. Kumar","doi":"10.4103/aer.aer_155_21","DOIUrl":"https://doi.org/10.4103/aer.aer_155_21","url":null,"abstract":"Background: Sympathetic response due to laryngoscopy and endotracheal intubation though transient, could be life-threatening in patients with underlying cardiovascular diseases. Aim of the Study: The aim of this study is to assess the effects of dexmedetomidine and esmolol on the hemodynamic response to laryngoscopy and endotracheal intubation in patients undergoing general anesthesia for elective surgery. Settings and Design: Prospective, randomized study conducted in a tertiary care center. Materials and Methods: Sixty patients were recruited and randomly divided into two groups. Group A received 0.5 mcg.kg−1 dexmedetomidine and Group B 0.5 mg.kg−1 esmolol infusions over 10 min. All patients were induced with propofol 2 mg.kg−1 followed by succinylcholine 2 mg.kg−1 and intubated. The heart rate (HR) and mean arterial pressure (MAP) were recorded at different time points. Statistical Analysis Used: Chi-square test, independent sample t-test, and paired t-test. Results: Baseline HR was statistically different in both groups. There was significant decrease in percentage change in baseline HR in Group A compared to Group B at preinduction (20.44% ± 10.82%, 13.63% ± 11.84%), before intubation (23.49 ± 12.62, 13.95 ± 14.86), and 7 min after intubation (14.65 ± 12.62, 6.80 ± 16.11). Percentage change in HR remained comparable in all other time points. Baseline MAP was comparable between the groups. Percentage change from baseline of MAP was significantly higher in Group B before intubation. All other time points MAP were comparable. The incidence of hypotension was comparable in both groups. Conclusions: Both dexmedetomidine and esmolol suppressed the hemodynamic response to laryngoscopy and intubation, but dexmedetomidine was more effective than esmolol in maintaining hemodynamic stability.","PeriodicalId":7798,"journal":{"name":"Anesthesia, Essays and Researches","volume":"239 1","pages":"357 - 361"},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76777854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Anesthetic Management in a Case of MURCS Syndrome","authors":"J. Rekha, Poonam Arora, R. Arora, Monica Arora","doi":"10.4103/aer.aer_137_21","DOIUrl":"https://doi.org/10.4103/aer.aer_137_21","url":null,"abstract":"MURCS syndrome is a more severe form of Mayer-Rokitansky-Küster-Hauser (MRKH) syndrome, an acronym meaning aplasia/hypoplasia of Müllerian ducts (MU), congenital renal agenesis/ectopia (R), and cervical somite dysplasia (CS). A common presentation is primary amenorrhea in adolescent females. An anesthetist must consider the benefits and limitations of both regional and general anesthesia for these patients based on site of surgery and severity of malformations. We report successful anesthetic management of a 21-year-old female with MURCS syndrome scheduled for a creation of neovagina under spinal anesthesia using ultrasound guidance.","PeriodicalId":7798,"journal":{"name":"Anesthesia, Essays and Researches","volume":"177 1","pages":"454 - 456"},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73333379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Central Venous Access in Neonates: Comparison of Ultrasound-Guided Percutaneous Access and Minimal Surgical Open Methods","authors":"H. I. Saber, A. Farid, Tamer A. Wafa, Hani I. Taman","doi":"10.4103/aer.aer_138_21","DOIUrl":"https://doi.org/10.4103/aer.aer_138_21","url":null,"abstract":"Background: In neonates, percutaneous central venous catheter (CVC) insertion is often a challenging technique. Recent reports have reported the efficacy of ultrasound (US) guidance when performing such an intervention. We conducted this study to compare US-guided and minimal surgical CVC insertion regarding time and ease of insertion, reliability, and complications. Patients and Methods: This prospective randomized study included 92 neonates scheduled for CVC insertion. They were divided into two groups: Group A (46 neonates) underwent the US-guided approach and Group B (46 neonates) underwent the surgical approach. The number of attempts and the duration of the procedure were documented in both groups. In addition, intraoperative and postoperative complications were recorded. Results: Each of patient's age, gender, weight, and the indication of catheter insertion were statistically comparable between the two groups. The number of trials showed a significant increase in Group A (1.52 vs. 1.07 in Group Bp <0.001). Nevertheless, the time of the procedure was significantly decreased in the same group (3.68 vs. 10.21 in Group Bp <0.001). [Table 2] summarizes the previous findings. Failure was encountered only in one case in Group A (2.2%), which was converted to the open surgical technique. In general, the incidence of complications showed no significant difference between the two approaches. Conclusion: Although US-guided CVC insertion is associated with an increased number of trials, the duration of the procedure is significantly diminished with its use. Furthermore, it has a high success rate in addition to a comparable complication profile with the traditional surgical method.","PeriodicalId":7798,"journal":{"name":"Anesthesia, Essays and Researches","volume":"38 1","pages":"395 - 400"},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80922513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of Dexmedetomidine Infusion in Low Dose on Dose Reduction of Propofol, Intraoperative Hemodynamics, and Postoperative Analgesia in Patients Undergoing Laparoscopic Cholecystectomy","authors":"Vijay Kalaskar, D. Ruparel, R. Wakode","doi":"10.4103/aer.aer_123_21","DOIUrl":"https://doi.org/10.4103/aer.aer_123_21","url":null,"abstract":"Background: Dexmedetomidine, alpha 2 agonist, with its anxiolytic, sympatholytic and sedative property can be good adjuvant in anesthesia by modifying stress response to various stimuli during laparoscopic cholecystectomy including laryngoscopy, intubation, pneumoperitoneum, and extubation. We aimed to evaluate low dose dexmedetomidine for reducing hemodynamic perturbations to stressful events with secondary aim of evaluating propofol dose reduction and postoperative analgesia. Methods: Sixty patients of American Society of Anesthesiologists Physical Status (ASA PS) Classes I and II were randomized to two groups of 30 each to receive dexmedetomidine infusion (0.5 mcg.kg−1.h−1) starting 15 min before induction (Group A) and normal saline (Group B). Patient induced and maintained with propofol infusion to keep BIS value 55–60 in both groups and heart rate (HR) and mean arterial pressure (MAP) were recorded. We stopped infusions at surgical closure. VAS score recorded till 24 h of surgery. Total propofol required in both groups were recorded. Data were statistically analyzed using the SPSS software version 15.0. Results: MAP and HR remain elevated following intubation in Group B and remain so throughout procedure and during all stressful events including CO2 insufflation and tracheal extubation and were statistically significant. Significantly lower doses (almost 30%) of Propofol required in Group A to achieve similar BIS values compared to Group B. Visual Analog Scale score remained on the lower side in Group A for 24 h than Group B. Conclusion: Low dose dexmedetomidine (0.5 mcg.kg−1.h−1) can effectively maintain hemodynamics during stressful events, reduces propofol requirement and improves postoperative analgesia in patients undergoing laparoscopic cholecystectomy.","PeriodicalId":7798,"journal":{"name":"Anesthesia, Essays and Researches","volume":"26 1","pages":"391 - 394"},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89572239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An Inquiry on Airway Management by McCoy Blade with Elevated Tip and Miller Straight Blade with Paraglossal Technique: Relevance for Difficult Airway Management in Current Infectious Times","authors":"S. Vidhya, N. Prakash, A. Swain, Sharad Kumar, Rajiv Shukla","doi":"10.4103/aer.aer_163_21","DOIUrl":"https://doi.org/10.4103/aer.aer_163_21","url":null,"abstract":"Background: Modifications of curved and straight laryngoscope blades have been used for airway management since a long time. While McCoy blade with an elevated tip is commonly used to intubate patients with anticipated difficult airway, the Miller's straight blade is used for intubations in children and less commonly adults. In this study, we revisit the paraglossal technique of Miller's straight blade as a method to improve laryngeal view especially in difficult intubations. Aim: This study aimed to compare laryngoscopic view and ease of intubation (EOI) using McCoy blade elevated tip and Miller's straight blade paraglossal technique. Materials and Methods: A prospective single-blind study was conducted on 170 patients undergoing elective surgery under general anesthesia. They were randomly allotted to two groups. In Group A, laryngoscopy was performed by Miller's blade paraglossal approach, whereas in Group B, laryngoscopy was performed by McCoy blade with an elevated tip. Laryngeal view was graded using the modified Cormack–Lehane grading, and EOI was graded using EOI score. These were compared with preoperative intubation prediction score. Statistical analysis was done using \"Medcalc\" version 19.0.3. Numerical and categorical data were analyzed by Student's t-test and Chi-square test, respectively. A P < 0.05 was considered statistically significant. Results: The paraglossal approach with Miller's blade offered better laryngoscopic view as compared with McCoy blade with an elevated tip in normal (54.1% vs. 25.9%) and difficult airway (44.7% vs. 11.8%). Tracheal intubation was easier with McCoy blade with an elevated tip although the success rate of intubation improved with the assistance of a bougie with Miller's straight blade paraglossal approach. Conclusion: The laryngeal view was significantly better with the paraglossal approach of Miller's straight blade even in difficult airway. McCoy blade with an elevated tip was also found to be a useful tool to have in difficult airway, as EOI is significantly higher. The study also highlights the usefulness of adjuncts such as a gum elastic bougie while intubating.","PeriodicalId":7798,"journal":{"name":"Anesthesia, Essays and Researches","volume":"22 1","pages":"401 - 407"},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87130660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Emergency Thoracotomy for Congenital Lobar Emphysema – Anesthesiology Concerns","authors":"Muthukumar Rajagopalan","doi":"10.4103/aer.aer_14_22","DOIUrl":"https://doi.org/10.4103/aer.aer_14_22","url":null,"abstract":"Congenital lobar emphysema (CLE) is a rare malformation of lungs, which presents usually in neonatal period or infancy as acute hypoxia and respiratory distress. It is characterized by the lobar over aeration of the normal lung followed by respiratory distress due to partial obstruction of bronchus by ball-valve effect. We would like to present the case of a 3-month-old female preterm (31 weeks) baby who presented to our neonatal intensive care unit with respiratory distress for 1 day. The baby was diagnosed with left-sided CLE having severe mediastinal shift to the right side and a dextroposition heart. Her venous blood gas showed PaCO2 of 70 mmHg and SpO2 of 70% with 15 L high-flow nasal oxygen. We would like to highlight the anesthesia techniques of airway management and ventilation during the critical period of induction till thoracotomy and exteriorizing the emphysematous lobe.","PeriodicalId":7798,"journal":{"name":"Anesthesia, Essays and Researches","volume":"34 1","pages":"460 - 462"},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85448624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ultrasound Block of the Medial Branch: Learning the Technique Using CUSUM Curves","authors":"M. Putzu, M. Marchesini","doi":"10.4103/aer.aer_162_21","DOIUrl":"https://doi.org/10.4103/aer.aer_162_21","url":null,"abstract":"Background: Blocking the medial branch of the lumbar facet joints plays a fundamental diagnostic and therapeutic role in the treatment of lumbar pain. Attempts to replace the typical guided X-ray techniques with ultrasound-guided techniques have also involved treating the lumbar medial branches. By applying the cumulative sum control chart (CUSUM method), we sought to evaluate the learning curve associated with ultrasound-guided block of the lumbar medial branches in operators experienced in locoregional anesthesia but without expertise in pain therapy. Aim: This study aimed to use a repeatable method to identify the learning curve of the ultrasound-guided medial branch block. Settings and Design: This study was a prospective application of over forty consecutive procedures of ultrasound lumbar medial branch block. Materials and Methods: The ultrasound medial branch blocks were performed under ultrasound guidance with confirmation of correct positioning using fluoroscopy on a population of patients with low back pain with any body mass index (BMI). Statistical Analysis: The operator's performance was assessed using the learning curve cumulative summation test (LS-CUSUM). Results and Conclusions: The correct target was reached in 29 procedures out of a total of 40 (72.5%) and in 29 out of 36 procedures performed on patients with BMI <30 (80.5%). According to the CUSUM algorithm, 11 further consecutive successes would have been necessary (47 procedures in total) to achieve a proven learning of the technique in the group with only patients with a BMI <30, with a further 22 consecutive successes (62 procedures in total) in the general group. Ultrasound-guided block of the lumbar medial branch appears not to be optimal for training beginner/intermediate operators seeking to replace guided X-ray procedures with guided ultrasound.","PeriodicalId":7798,"journal":{"name":"Anesthesia, Essays and Researches","volume":"44 1","pages":"385 - 390"},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83719454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Comparative Study of Analgesic Efficacy of Intrathecal Bupivacaine with Ketamine Versus Bupivacaine with Magnesium Sulphate in Parturients Undergoing Elective Caesarian Sections","authors":"Jagadish B Alur, Vishwajeet Korikantimath, B. Jyoti, K. Sushma, Nataraj Mallayyagol","doi":"10.4103/aer.aer_125_21","DOIUrl":"https://doi.org/10.4103/aer.aer_125_21","url":null,"abstract":"Background and Aims: Spinal anaesthesia is the most preferred technique of anaesthesia in parturient, undergoing lower segment caesarean sections (LSCS) which provides effective pain relief during intra operative and early postoperative period. However, recent studies demonstrate that about 50%–70% of patients experience moderate to severe pain after LSCS indicating that postoperative pain remains poorly managed. The aim of our study was to compare intrathecal magnesium sulphate (Mgso4) and ketamine as adjuvants to hyperbaric bupivacaine in parturients posted for elective caesarean sections under spinal anaesthesia to determine their effectiveness in extending the duration of analgesia Materials and Methods: After institutional ethical committee approval, 82 parturient undergoing elective LSCS were enrolled into the prospective randomized double blinded study. Group BK (n = 41) received intrathecal ketamine (25 mg) as additive to hyperbaric bupivacaine and group BM (n = 41) received magnesium sulphate (75 mg) as additive to hyperbaric bupivacaine. Time of onset of sensory analgesia, motor blockade, duration of analgesia was noted down. Intraoperative hemodynamics and any adverse effects of study drugs were noted. Results: The mean duration of analgesia in group BK was significantly longer (P < 0.05) than in Group BM. The onset of sensory and motor blockade was significantly early in Group BK compared to Group BM. Hemodynamics was better maintained in Group BK with less requirement of ephedrine compared to Group BM. The visual analog scale scores were significantly lower without side effects in both the groups. Conclusion: The present study demonstrated that the duration, quality of analgesia, hemodynamic stability was better with intra thecal ketamine as an adjuvant to bupivacaine compared to intrathecal MgSo4 without any significant side effects on mother and child.","PeriodicalId":7798,"journal":{"name":"Anesthesia, Essays and Researches","volume":"133 1","pages":"379 - 384"},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77797092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Perioperative Satisfaction and Health Economic Questionnaires in Patients Undergoing an Elective Hip and Knee Arthroplasty: A Prospective Observational Cohort Study","authors":"M. Nagappa, J. Querney, Janet E. Martin, A. John-Baptiste, Y. Subramani, B. Lanting, C. Schlachta, Julie Von Koughnett, K. Speechley, Jeff Correa, Maoz Yunus Chohan, Nita Rrafshi, Mariska Batohi, A. Fayad, Homer Yang","doi":"10.4103/aer.aer_5_22","DOIUrl":"https://doi.org/10.4103/aer.aer_5_22","url":null,"abstract":"Background: Early hospital discharge shifts the recovery burden toward the patient and can leave patients and their caregivers anxious about the recovery process. Postoperative home care must be broadened to include appropriate and adequate support to address recovery at home. In this prospective study, patient and caregiver perspectives on the level of preparation/satisfaction and cost associated with management of recovery in the postoperative period were evaluated. Methods: We designed this prospective study to measure patient-reported outcomes and to inform the design of a postoperative home monitoring system. Patients undergoing inpatient total hip or knee replacements were recruited from a preadmission clinic at a university hospital. Patients and caregivers completed preoperative, postoperative, and health economic questionnaires. Bivariate analyses were conducted to understand factors associated with satisfaction with care. Results: Of 239 patients and caregivers recruited, preoperative questionnaire was completed by 98.8% of patients, the postoperative follow-up questionnaire was completed by 94.2% of patients, 75% of informal caregivers completed the postoperative follow-up questionnaires, and 93.7% completed the health economic questionnaire. The postoperative satisfaction scores were higher than the preoperative needs/expectation scores for both the overall and individual subscales. Patients undergoing hip arthroplasty reported higher satisfaction scores for postoperative pain management than patients undergoing knee arthroplasty (hip arthroplasty vs. knee arthroplasty: 4.07 ± 1.11 vs. 3.37 ± 1.51; P < 0.001). Patients who underwent knee arthroplasty reported better satisfaction scores with regard to having enough information on how to manage leg stiffness at home compared to patients undergoing hip arthroplasty (knee arthroplasty vs. hip arthroplasty: 3.13 ± 1.35 vs. 2.78 ± 1.30; P = 0.04). Conclusion: Overall, patients are generally satisfied with perioperative care, but they have distinct needs and expectations regarding perioperative medication and postoperative pain management. Virtual postoperative monitoring may be a useful tool during postoperative care to address many of patients' concerns.","PeriodicalId":7798,"journal":{"name":"Anesthesia, Essays and Researches","volume":"5 1","pages":"413 - 438"},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86507049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}