Success Rate Of Placement Research Articles

A comparison of nasogastric tube insertion by SORT maneuver (sniffing position, NGT orientation, contralateral rotation, and twisting movement) versus neck flexion lateral pressure in critically ill patients admitted to ICU: a prospective randomized clinical trial

BackgroundAlthough many techniques have been introduced to facilitate nasogastric tube (NGT) insertion using anatomic landmarks and a group of devices, there is a lack of general consensus regarding a standard method. The current study purposed to investigate if SORT maneuver (sniffing position, NGT orientation, contralateral rotation, and twisting movement) increases the success rate of NGT correct placement versus neck flexion lateral pressure (NFLP) method.MethodsA randomized controlled trial study was conducted in two university affiliated intensive care units (tertiary referral center). Three hundred and ninety-six critically ill patients older than 18 years of age were randomly divided into SORT (n = 200) and NFLP (n = 196) groups. The technique was classified as “failed” after the third unsuccessful attempt. Patient characteristics, success rate for the first attempt, time required for the successful first attempt and overall successful insertion time, various complications including kinking, coiling and bleeding and ease of insertion were noted as main outcomes measured.ResultsEase of insertion was significantly better in the SORT group compared to the NFLP group (P < 0.001). The number of failed attempts was significantly higher in the NFLP group (7.5%) vs the SORT group (3.0%) (P = 0.046). The pattern of complications was not different between two study groups (P = 0.242). The odds of stage II (odds ratio (OR) = 49.9; 95% confidence interval (CI) 25.2 to 98.6), stage III (OR = 67.1; 95% CI 14.9 to 302.8)) and stage IV (OR = 11.8; 95% CI 3.4 to 41.2) ease of insertion were much higher in NFLP compared to SORT group, after adjusting for age and body mass index (BMI). The odds of failure was not significantly different in NFLP group compared to SORT group (OR = 2.3; 95% CI 0.85 to 6.3), after adjusting for age and BMI.ConclusionsSORT technique may be considered as a promising method for successful NGT insertions in critically ill patients. However, more trials are needed to confirm the results of this study. The decision must account for individual patient and clinical factors and the operator’s experience and preference.Trial registration: The study was registered at government registry of clinical trials in Iran (http://www.IRCT.ir) (number: IRCT20091012002582N18, 13 March 2018)

Magnetic resonance imaging/transrectal ultrasonography fusion guided seed placement in a phantom: Accuracy between 2-seed versus 1-seed strategies

PurposeTo investigate whether the 2-seed placement per Magnetic Resonance Imaging (MRI) suspicious lesion yields a higher seed placement accuracy than a 1-seed strategy on a phantom. MethodsEight olives embedded in gelatin, each simulating a prostate, underwent MRI. Three virtual spherical lesions (3, 5, and 8 mm diameters) were marked in each olive on the MRI images and co-registered to the MRI/Transrectal Ultrasonography (TRUS) fusion biopsy system. Two radiologists placed 0.5 mm fiducials, targeting the center of each virtual lesion under fusion image guidance. Half of the 8 olives in each phantom were assigned either to the 1-seed or 2-seeds per lesion strategy. Post-procedure Computed Tomography (CT) images identified each seed and were fused with MR to localize each virtual lesion and collected the seed placement error - distance between the virtual target and the corresponding seed (using the closer seed for the 2-seed strategy). Seed placement success is defined as fiducial placement within a lesion boundary. ResultsEach operator repeated the procedure on three different phantoms, and data from 209 seeds placed for 137 lesions were analyzed, with an overall error of 3.03 ± 1.52 mm. The operator skill, operator phantom procedural experience, lesion size, and number of seeds, were independently associated with the seed placement error. Seed placement success rate was higher for the 2-seed group compared to 1-seed, although the difference was not statistically significant. ConclusionsPlacing 2 seeds per MRI lesion yielded a significantly lower error compared to 1-seed strategy, although seed placement success rate was not significantly different.

Fluoroscopic Stenting as a Bridge to Surgery versus Emergency Management for Malignant Obstruction of the Colon.

Aim To investigate the feasibility of a SEMS (self-expandable metallic stent) as a bridge to surgery for malignant colonic obstruction. Methods We retrospectively reviewed 83 patients that were in accordance with inclusion criteria; of these, 33 patients that underwent fluoroscopy-guided SEMS placement followed by elective curative resection were classified as a SEMS group and 50 patients, who received emergency surgery (ES), were classified as an ES group. The clinicopathological characteristics, surgery-related parameters, complications, and three-year survival rate were compared between the two groups. Results No significant differences between the two groups were observed in any of the clinicopathologic characteristics except for higher preoperative absolute neutrophil count in the ES group (P < 0.001). Compared to the ES group, the SEMS group has significantly more cases, which featured a laparoscopic approach (72.7% vs. 14.0%, P < 0.001), lower overall stoma rate (0% vs. 34.0%, P < 0.001), and lower overall postoperative morbidity (27.3% vs. 56.0%, P=0.010). The oncological outcomes did not differ significantly between the two groups in terms of three-year overall survival (P=0.125). The technical and clinical success rates of stent placement were 91.7% and 100%, respectively. Conclusion Patients treated with the stent-surgery approach had significant short-term superiorities and similar long-term outcomes, compared to patients who had emergency surgery alone. The SEMS is, therefore, safe and feasible as a bridge to surgery for malignant colonic obstruction.

Relevance of Distal Arterial Collapse in Stenting of Atherosclerotic Near-Occlusion of the Carotid Artery.

Carotid near-occlusion has been subclassified into near-occlusion with and without collapse. We aimed to compare the technical success and perioperative complication rates of carotid artery stent placement with special attention to these subtypes to see whether there is a clinical relevance of this subclassification. From January 2014 to January 2018, we retrospectively evaluated all patients with atherosclerotic extracranial carotid stenosis treated by carotid artery stent placement. Patients with near-occlusion were identified based on DSA findings. Patient characteristics, the presence of criteria for near-occlusion and collapse, arterial diameters, technical success rate, and perioperative (≤30 days) complications were analyzed. We identified 59 near-occlusions in 58 (46 men, 11 with collapse) patients. Forty-one patients (70.7%) were symptomatic. Technical success rate was 98.3% (58 of 59 procedures). In 1 case of near-occlusion with collapse, we were not able to pass through the stenosis. Compared with patients without collapse (4.2% of 48 cases), those with collapse (30% of 10 stented patients) had significantly higher rates of postintervention hyperperfusion syndrome (P = .032). In the whole cohort, the permanent morbidity and mortality rate was 3.4% (1.7% permanent morbidity and 1.7% mortality). For asymptomatic and symptomatic near-occlusion groups, the rates were 0% and 4.9%, respectively. The composite risk of stroke, death, and myocardial infarction was similar between the groups with and without collapse (P = .682). Rate of hyperperfusion syndrome (with or without permanent deficit) was similar (P = 1) in preoperatively symptomatic patients versus asymptomatic patients (9.8% vs 5.9%). Internal carotid artery diameter consistently increased after carotid artery stent placement in patients with collapse and was not related to the development of hyperperfusion syndrome. Care should be taken to minimize hyperperfusion risk in patients with near-occlusion undergoing CAS, especially in the subgroup of patients with collapse and in patients with both symptomatic and asymptomatic carotid stenosis.

P1314TEN YEAR EXPERIENCE ON VASCULAR ASSESS PLACEMENT BY NEPHROLOGIST

Abstract Background and Aims Across the globe, vascular assess placement for haemodialysis is performed by Anaesthesiologist, Nephrologist, Radiologist, and surgeons depending on the experts availability of that locality. Patient care should not suffer because of lack of round the clock surgical and radiological expertise. We would like to share our ten year experience of vascular assess placement and their outcomes which were performed in the Department of Nephrology. Method A total 11429 vascular assess procedures have been carried out during 2009 to 2019. There were 781 AVF, cuffed 476 and non-cuffed 10172 (Internal Juglar 5375, Subclavian 2042 and femoral 2755) catheter insertions were performed. For construction of AVF, Pre-procedure ultrasound Doppler was performed to see both the anatomy of vein and artery. Radiocephalic and brachiocephalic AVF construction were done by side to side arteriovenous anastomosis using 6-0 Prolene double ended needle under strict asepsis. Insertion complications (bleeding and air-embolism), procedure time, patency, blood flow, and post-procedure complications (hematoma) were recorded. Follow up was done on 10th and 30th day of post surgical period. Of 476 Permcath, 58 were placed without valve guided peel away sheath catheters and rest with valve guided peel away sheath catheters in right internal jugular vein. Results Of 781 AVF, 557 (71.3%) were males and mean age 42.7±15.1 years. Of them, diabetes 330 (42.25%) and non-diabetes 451 (57.74%) were, Basic disease were DM 134 (16.15%), HTN 115 (14.72%), CGN 121 (15.49%), CTIN 124 (15.87%), Unknown 173 (22.15%) and others 114 (14.59%) were respectively. Common sites of AVF site were were left radiocephalic 319 (40.84%), left brachiocephalic 321 (41.1%) and both side brachiobasilic 141 (18%). Pre procedure ultrasound doppler findings were arterial diameter 2.79±0.96, venous diameter 2.75±0.86, arterial pulse wave velocity 57.93±19.49, diameter. The average duration of the procedure was 70 min without any intra operative complication. Five patients developed post-operative bleeding required re-exploration. The average duration between the construction of the fistula and the day of successful cannulation was 37 days. After six weeks venous diameter were 5.06±1.58 having blood blow of 766.17±536.36 ml/min. Successful cannulation could be done in 418 (53.52%) patients and another 363 (46.47%) patients did not have satisfactory thrill even after the stipulated time of maturation were declared failed AV fistulas. Other common complications observed were stenosis 351 (44.94%), edema 140 (17.92%), ischemia 124 (15.87%), thrombosis 124 (15.87%), infections 109 (13.95%) and aneursyms 112 (14.34%) respectively The technical success rate of catheter placement were 98% without any major insertion or post-procedure complications. Average procedural time was 20 minutes. Mal position of Permcath was seen in 38 (7.9%) patients, catheter thrombosis 45 (9.4 %) patients. Conclusion It is quite safe for nephrologists to perform surgical procedures required for vascular access for dialysis. The valve-guided tunnelled catheter insertion and side to side anastomosis AVF construction may be adopted as a routine practice by the Nephrologists.

Confirmation of success rate of landmark-based caudal blockade in children using ultrasound: A prospective analysis.

Caudal epidural anesthesia is a frequently performed regional anesthesia block in infants and young children. Traditional landmark-based blind needle insertion remains the norm with no immediate, objective method to determine the presence of local anesthetic in the epidural space. Increasingly, ultrasound-imaging is used in pediatric regional anesthesia with demonstrated improvements in block efficacy and efficiency. The value of ultrasound-imaging in confirming success rate of traditional caudal placement is not well defined. To assess the success rate of conventional landmark-based caudal technique using ultrasound-imaging. Prospective observational study of 30 children ages 1month to 7years undergoing surgical procedures with consent for caudal blockade. Provider success rate of caudal blockade placed by landmark technique was measured using ultrasound-imaging of needle tip and local anesthetic flow in the epidural space. Ultrasound-imaging demonstrated 80% success to correct positioning of the needle tip and local anesthetic in the epidural space. Failure was associated with decreasing experience and presence of anatomic variances. All improperly positioned needles were subsequently successfully positioned using real-time ultrasound-imaging. Mean time for confirmatory ultrasound-imaging (SD; range) was 1minute (0.3; 1-3). The use of ultrasound-imaging can be used to identify proper needle placement in the sacral epidural canal and facilitate subsequent corrected placement.

Rescue oxygenation success by cannula or scalpel-bougie emergency front-of-neck access in an anaesthetised porcine model.

In the obese, the evidence for the choice of the optimal emergency front-of-neck access technique is very limited and conflicting. We compared cannula and scalpel-bougie emergency front-of-neck access techniques in an anaesthetised porcine model with thick pretracheal tissue. Cannula and scalpel-bougie cricothyroidotomy techniques were performed in 11 and 12 anaesthetised pigs, respectively. Following successful tracheal access, oxygenation was commenced and continued for 5 min using Rapid-O2 device for cannula and circle breathing system for scalpel-bougie study groups. The primary outcome was a successful rescue oxygenation determined by maintenance of arterial oxygen saturation >90% 5 min after the beginning of oxygenation. Secondary outcomes included success rate of airway device placement, time to successful airway device placement, and trauma to the neck and airway. The success rate of rescue oxygenation was 18% after cannula, and 83% after scalpel-bougie technique (P = 0.003). The success rate of airway device placement was 73% with cannula and 92% with scalpel-bougie technique (P = 0.317). Median (inter-quartile-range) times to successful airway device placement were 108 (30–256) and 90 (63–188) seconds (P = 0.762) for cannula and scalpel-bougie emergency front-of-neck access, respectively. Proportion of animals with iatrogenic trauma additional to the procedure itself was 27% for cannula and 75% for scalpel-bougie technique (P = 0.039). Thus, in the porcine model of obesity, the scalpel-bougie technique was more successful in establishing and maintaining rescue oxygenation than cannula-based technique; however, it was associated with a higher risk of severe trauma.

Ureteral Access Sheath Applicatıon Without Fluoroscopy in Retrograde Intrarenal Surgery.

To compare the results and complications of the two techniques of ureteral access sheath application, with and without using fluoroscopy. A comparative study. Department of Urology, Karabuk University Medical Faculty Training and Research Hospital and Ankara Diskapi Yildirim Beyazid Training and Research Hospital between April 2014 and January 2018. Retrospective evaluation was made of patients applied with retrograde intrarenal surgery using ureteral access sheath (UAS). In Group 1, defined method were used for UAS application without using scopy. In Group 2, following semi-rigid ureterorenoscopy, localisation of guidewire was checked with fluoroscopy. UAS was advanced to ureter over guidewire under fluoroscopy imaging. Success rate of UAS placement was similar in both groups (p=0.747). The time of UAS placement was 14.75 secs in Group 1 and 14.99 secs in group 2 (p=0.073). Fluoroscopy was not used at all during UAS placement in Group 1. In Group 2, the mean duration of fluoroscopy use was 9.93±3.89 secs. Total stone-free rate was 82.09% and 83.28% in Group 1 and 2, respectively. (p=0.653). The method described in this paper provides protection against radiation exposure for both the patient and the operating team; and prevents potential complications by enabling clear evaluation of ureteral orifice. Key Words: Renal stone surgery, Retrograde ıntrarenal surgery, Radiation protection, Flouroscopy, Radiation free.

A Prospective Multicenter Study of Partially Covered Metal Stents in Patients Receiving Neoadjuvant Chemotherapy for Resectable and Borderline Resectable Pancreatic Cancer: BTS-NAC Study.

Background/AimsThe aim of this study was to evaluate the safety and efficacy of partially covered self-expandable metallic stents (PCSEMS) in patients undergoing neoadjuvant chemo (radio) therapy (NAC) for pancreatic cancer (PC).MethodsThis was a prospective multicenter study to evaluate the safety and efficacy of PCSEMS in patients receiving NAC for resectable and borderline resectable PC. The primary endpoint was the rate of recurrent biliary obstruction (RBO).ResultsTwenty-six patients with PC (three with resectable PC and 23 with borderline resectable PC) who underwent NAC at seven Japanese centers were included in the analysis. Both the technical and functional success rates of PCSEMS placement were 100%. Early stent-related complications were observed in three patients (11.5%) mild pancreatitis (n=2) and mild liver abscess (n=1). The median time to surgery or palliation was 4.0 months. Surgical resection was eventually performed in 73.1% of patients, and stent removal during surgery was successful in all patients. RBO was observed in nine patients (34.6%) seven with stent occlusion, one with kinking and one with migration. The RBO rates in resected cases and nonresected cases were 36.8% and 28.6%, respectively.ConclusionsBiliary drainage by PCSEMS was safe and feasible in patients undergoing NAC for resectable and borderline resectable PC.

Evolving Role of Magseed in Wireless Localization of Breast Lesions: Systematic Review and Pooled Analysis of 1,559 Procedures.

Wire-guided localisation (WGL) remains the most widely used technique for the localisation of non-palpable breast lesions; however, recent technological advances have resulted in non-wire, non-radioactive alternatives, such as magnetic seeds (Magseeds). The aim of this pooled analysis was to determine whether Magseeds are an effective tool for localising non-palpable breast lesions. Various databases were searched for publications which reported data on the localisation and placement rates of Magseed. Data on re-excision rates under use of Magseed and WGL were also collected. Sixteen studies, spanning the insertion of 1,559 Magseeds, were analysed. The pooled analysis showed a successful placement rate of 94.42% and a successful localisation rate of 99.86%. Four studies were analysed in a separate pooled analysis and showed no statistically significant difference between re-excision rates using Magseeds and WGL. The use of Magseeds is an effective, non-inferior alternative to WGL that overcomes many of the limitations of the latter.

Design and test of soft-pot-tray automatic embedding system for light-economical pot seedling nursery machine

Most of the commercially-available pot seedling nursery machines are incompatible with soft-pot-trays and are labor-intensive and low in productivity. A soft-pot-tray automatic embedding system was developed in this study to achieve automatic embedding of the soft pot tray into the hard tray following sowing and covering with soil. A control system was constructed using the Arduino program development environment. An embedded-hard-tray automatic lowering mechanism and conveyor-belt-based pot-tray embedding system were designed. Dynamics analysis was conducted to derive an equation to describe the embedding process of the soft pot tray into the embedded hard tray. A prototype of the soft-pot-tray automatic embedding system was manufactured and tested. The analytical equation suggested that a minimum linear velocity of 0.86 m/s was required for a complete embedding process. The experimental results showed that the embedded-hard-tray automatic lowering mechanism was reliable and stable as the tray placement success rate was greater than 99%. The successful tray embedding rate was 100% and the seed exposure rate was less than 1% with a linear velocity of the conveyor belt of 0.92 m/s. The experiment findings agreed well with the analytical results. The proposed soft-pot-tray automatic embedding system satisfied the technical specifications for a light-economical pot seedling nursery machine. Keywords: automatic embedding, pot seedling nursery machine, embedded hard tray, soft pot tray, conveyor-belt embedding system DOI: 10.25165/j.ijabe.20201301.4726 Citation: Chen L T, Ma X, Wang C, Li H W, Li Z H, Chen X S, et al. Design and test of soft-pot-tray automatic embedding system for light-economical pot seedling nursery machine. Int J Agric & Biol Eng, 2020; 13(1): 91–100.

Evaluation of time to intubation and rate of success for different healthcare professionals using a double-lumen left-sided endotracheal video tube: A prospective observational study.

Intubation with a double-lumen left-sided endotracheal video tube has been the standard procedure for nearly five years in the Department of Cardiothoracic Surgery, Copenhagen University Hospital, but no systematic evaluations have been done. For a 12-month period ending November 2017, data were collected from 579 consecutive patients, scheduled for thoracic surgery with a requirement for one-lung ventilation; 35 anaesthetist trainees (nurses or doctors) (287 cases), 27 nurse anaesthetists (239 cases) and 8 anaesthesiologists (53 cases) managed intubation with a double-lumen tube. Time to intubation was relatively equal across healthcare professionals with a mean time of 53 (anaesthetist trainees), 40 (nurse anaesthetists) and 63 (anaesthesiologists) seconds. The shorter time for nurse anaesthetists and prolonged time for anaesthesiologists might be due to the small number of cases and the fact that anaesthesiologists carried out 60% of the cases, where a third attempt was needed, and 25% of cases for the anaesthesiologists were assessed to a Cormack-Lehane grade of 3 or 4 compared to 6% for anaesthetist trainees and 5% for nurse anaesthetists. The rate of successful placement in the first attempt of placing the double-lumen left-sided endotracheal video tube was high, which emphasises that intubation with a double-lumen left-sided endotracheal video tube is suitable for use by different healthcare professionals.

Analysis of spinal stress analysis application in determining method for the pedicle screw placement under the guidance of X-Ray.

To evaluate the accuracy of a novel guidance method of pedicle screw implantation determined by spinal stress. We retrospectively analyzed patients underwent pedicle screw internal fixation between January 2015 and August 2018 in our hospital. Patients were divided into two groups according to the methods of pedicle screw implantation namely, the conventional nail placement and novel guidance method of pedicle screw implantation determined by spinal stress. Accuracy of spinal pedicle screw placements was evaluated using intraoperative and postoperative X-ray computed tomography (CT) examination and intraoperative touch of nerve root dissection pedicle bone. The success rate of intraoperative one-time screw placement was calculated according to Heary classification I. A total of 785 patients underwent pedicle screw internal fixation were retrospectively analyzed. Among them 384 patients were treated using conventional nail placement (Group A) and 401 patients were treated using the technique according to analysis of spinal stress (Group B). There was no significant difference in terms of the characteristics between two groups. There were significant differences in terms of the success rate of total of screw placement (88.7% vs. 96.2%, P < 0.001) including thoracic screw placement (87.8% vs. 94.5%, P = 0.003) and lumbar screw placement (88.8% vs. 96.5%, P = 0.001) for Group A and Group B, respectively. Using the novel guidance method of pedicle screw implantation determined by spinal stress might improve the accuracy of pedicle screw implantation.

The efficacy of immersive virtual reality surgical simulator training for pedicle screw placement: a randomized double-blind controlled trial.

To verify whether the pedicle screw placement (PSP) skills of young surgeons receiving immersive virtual reality surgical simulator (IVRSS) training could be improved effectively and whether the IVRSS-PSP training mode could produce a real clinical value in clinical surgery. Twenty-four young surgeons were equally randomized to a VR group and a NON-VR group. Participants in VR group received IVRSS-PSP training, and those in NON-VR group used the conventional model of observing a spinal model first and then watching a teaching video of spinal surgery for 40minutes x five. The nailing outcome of the participants before and after training was evaluated by statistical analysis in both groups. Post-training data analysis showed that the success rate and accuracy rate of screw placement in VR group and NON-VR group were 82.9% and 69.6% vs. 74.2% and 55.4%, respectively, showing statistically significant differences between the two groups by chi-square test (P < 0.05). The present study demonstrated that IVRSS-PSP was helpful to improve the success rate of PSP for young surgeons, and may provide valuable reference for PSP training of young surgeons. In addition, our study also showed a promising potential of the VR technology in surgical simulation training.

Outcomes of bedside peripherally inserted central catheter placement: a retrospective study at a single institution.

Background:Bedside insertion of peripherally inserted central catheters (PICCs) has higher rates of malposition than fluoroscopic-guided PICC placement. This study evaluated the success rate of bedside PICC placement, variations in tip location, and risk factors for malposition. Methods:This retrospective study included patients who underwent bedside PICC placement from January 2013 to September 2014 in a single institution. The procedure was conducted under ultrasound guidance or by a blind method. After PICC placement, tip location was determined by chest X-ray. Results:The overall venous access success rate with bedside PICC placement was 98.1% (1,302/ 1,327). There was no significant difference in the venous access success rate between ultrasound-guided placement (868/880, 98.6%) and a blind approach placement (434/447, 97.1%). Optimal tip position was achieved on the first attempt in 1,192 cases (91.6%). Repositioning was attempted in 65 patients; 60 PICCs were repositioned at the bedside, two PICCs were repositioned under fluoroscopic guidance, and three PICCs moved to the desired position without intervention. Final optimal tip position after repositioning was achieved in 1,229 (94.4%). In logistic regression analysis, five factors associated with tip malposition included female sex (Exp(B), 1.687; 95% confidence interval [CI], 1.180 to 2.412; P=0.004), older age (Exp(B), 1.026; 95% CI, 1.012 to 1.039; P<0.001), cancer (Exp(B), 0.650; 95% CI, 0.455 to 0.929; P=0.018), lung disease (Exp(B), 2.416; 95% CI, 1.592 to 3.666; P<0.001), and previous catheter insertions (Exp(B), 1.262; 95% CI, 1.126 to 1.414; P<0.001). Conclusions:Bedside PICC placement without fluoroscopy is effective and safe in central venous catheters. Potential risk factors associated with catheter tip malposition include older age, female sex, cancer, pulmonary disease, and previous central vein catheterizations.

Evaluation of ultrasound-guided Freka-Trelumina enteral nutrition tube placement in the treatment of acute pancreatitis

BackgroundEnteral nutrition should be implemented as early as possible in patients with moderate or severe acute pancreatitis. This study was designed to evaluate the feasibility and Deffectiveness of ultrasound-guided Freka-Trelumina tube placement for enteral nutrition in acute pancreatitis.MethodsPatients with severe acute pancreatitis admitted to Shengjing Hospital of China Medical University who needed Freka-Trelumina tube placement for enteral nutrition and gastrointestinal decompression were included in the current study. The relevant evaluation indicators of tube placement included the success rate of tube placement, tube placement time, tube shift rate, and blocking rate. In addition, the evaluation indicators of ultrasound-guided tube placement (from 1 January 2018 to 31 July 2019) were compared with those of previous endoscope-guided placement (from 1 January 2015 to 31 December 2017) by analysing the data from the electronic medical record system.ResultsThe success rate of ultrasound-guided tube placement was 90.7% (49/54). All 49 patients tolerated the Freka-Trelumina feeding tube. The average ultrasound-guided tube placement time for the 49 patients was 18.4 ± 12.8 min (range, 5–36 min). The Freka-Trelumina feeding tube had a shift rate of 10.2% (5/49). The blocking rate of the Freka-Trelumina feeding tube was 12.2% (6/49). The success rate of tube placement, tube shift rate and blocking rate for endoscope-guided tube placement were 100% (62/62), 11.3% (7/62), and 12.9% (8/62), respectively. The average endoscope-guided tube placement time for the 62 patients was 16.5 ± 5.7 min (range, 12–31 min). The comparison between the ultrasound-guided group and the endoscope-guided group showed that the success rate of tube placement, tube placement time, tube shift rate and blocking rate were similar.ConclusionThe ultrasound-guided method can be done non-invasively at the bedside, which is safe and convenient, and the Freka-Trelumina feeding tube can be placed in time to achieve the goal of early enteral nutrition and gastrointestinal decompression.

Comparison of Clinical Value between Right Distal Radial Artery Access and Right Radial Artery Access in Patients Undergoing Coronary Angiography or Percutaneous Coronary Intervention

Objective: To compare the feasibility and safety between right distal radial artery access and right radial artery access in patients undergoing coronary angiography (CAG) or percutaneous coronary intervention (PCI). Methods: On the basis of arterial access, 113 patients who underwent CAG or PCI in Kunshan Hospital of Traditional Chinese Medicine between January and October 2018 were divided into two groups: a right distal radial artery group (52 patients) and a right radial artery group (61 patients). We collected general information, the number of puncture attempts, access times, postoperative compression time, and complications. Results: The general characteristics, rate of successful radial artery puncture, and rate of successful catheter placement in the two groups were not different. The right radial artery group had fewer puncture attempts (1.26±0.44 times vs. 2.19±0.53 times, P=0.001) and a shorter access time (3.23±0.86 min vs. 4.77±1.49 min, P=0.001) than the right distal radial artery group. However, the postoperative compression time in the right distal radial artery group was shorter (3.44±0.9 h vs. 7.16±1.21 h, P=0.001). Two cases of bleeding, four cases of hematoma, and one case of artery occlusion in the right radial artery group and one case of hematoma in the right distal artery group occurred before discharge. The rate of total complications in the right distal radial artery group was lower than in the right radial artery group (1.93% vs. 11.48%, P=0.048). Conclusion: CAG or PCI through the right distal radial artery is feasible and safe.

Efficacy of Baska mask and Laryngeal mask airway supreme during positive pressure ventilation - A comparative study.

Background and Aims:Supraglottic airway devices have several roles including maintenance of a clear upper airway during general anesthesia. We primarily compared the efficacy of Baska mask (BM) and laryngeal mask airway supreme (LMAS) for the rate of first time successful placement and the seal pressure. The secondary outcome measures included laryngopharyngeal morbidity and the correct positioning of the gastric port.Material and Methods:A sample size of 30 was calculated in each study group. A total of 70 study participants were included in the statistical analysis of which 36 patients were in the BM group and 34 patients were in the LMAS group.Results:The BM was successfully inserted in 28 patients (77.8%), whereas LMAS was successfully inserted in 33 patients (97.1%) in the first attempt (P = 0.028). The mean oropharyngeal seal pressure in the BM group was higher (33.28 ± 6.80 cm H2O) than compared to the LMAS group (27.47 ± 2.34 cm H2O) with a P value <0.001. There was no significant difference between the two groups in the incidence of postoperative laryngopharyngeal morbidity both in the immediate postoperative period (P = 0.479) and that seen 24 hours post operatively (P = 0.660). The nasogastric tube could easily be inserted in the entire study population.Conclusion:From the present study, it is concluded that the BM creates a higher oropharyngeal seal pressure than the LMAS. However, the BM is more difficult to insert. The incidence of postoperative laryngopharyngeal morbidity is similar in both groups.

Self-expandable Metal Stent as a Bridge to Surgery for Colorectal Cancer: Safety and Oncological Outcomes.

Self-expandable metal stent (SEMS) as a bridge to surgery (BTS) for obstructive colorectal cancer (CRC) raises concerns regarding the short-term as well as oncological outcome. The present study aimed to investigate the safety of SEMS placement and risk factors of worse short-term and oncological outcomes as BTS. Twenty-four patients with obstructive CRC who underwent SEMS placement as BTS were included. Success rate of SEMS placement and 2-year relapse-free survival (RFS) rates in stage II/III BTS patients were assessed. Technical and clinical success rates for SEMS placement were 100% and 87.5%, respectively. In Multivariate analyses, longer tumour length, longer interval to surgery, and angular positioning were risk factors related with the complication of stent placement. Two-year RFS rates were significantly higher in the no-complication than in the complication group (100% vs. 75%, log-rank test, p<0.01). A long tumour length, long interval between SEMS insertion and surgery, and angular positioning of the SEMS were identified as risk factors for SEMS-related complications. Moreover, SEMS insertion and/or surgery complications were associated with worse oncological outcome in CRC patients.

Design and test of soft-pot-tray automatic embedding system for light-economical pot seedling nursery machine

Most of the commercially-available pot seedling nursery machines are incompatible with soft-pot-trays and are labor-intensive and low in productivity. A soft-pot-tray automatic embedding system was developed in this study to achieve automatic embedding of the soft pot tray into the hard tray following sowing and covering with soil. A control system was constructed using the Arduino program development environment. An embedded-hard-tray automatic lowering mechanism and conveyor-belt-based pot-tray embedding system were designed. Dynamics analysis was conducted to derive an equation to describe the embedding process of the soft pot tray into the embedded hard tray. A prototype of the soft-pot-tray automatic embedding system was manufactured and tested. The analytical equation suggested that a minimum linear velocity of 0.86 m/s was required for a complete embedding process. The experimental results showed that the embedded-hard-tray automatic lowering mechanism was reliable and stable as the tray placement success rate was greater than 99%. The successful tray embedding rate was 100% and the seed exposure rate was less than 1% with a linear velocity of the conveyor belt of 0.92 m/s. The experiment findings agreed well with the analytical results. The proposed soft-pot-tray automatic embedding system satisfied the technical specifications for a light-economical pot seedling nursery machine. Keywords: automatic embedding, pot seedling nursery machine, embedded hard tray, soft pot tray, conveyor-belt embedding system DOI: 10.25165/j.ijabe.20201301.4726 Citation: Chen L T, Ma X, Wang C, Li H W, Li Z H, Chen X S, et al. Design and test of soft-pot-tray automatic embedding system for light-economical pot seedling nursery machine. Int J Agric & Biol Eng, 2020; 13(1): 91–100.