scholarly journals The midline approach for endotracheal intubation using GlideScope video laryngoscopy could provide better glottis exposure in adults: a randomized controlled trial

2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Lianxiang Jiang ◽  
Shulin Qiu ◽  
Peng Zhang ◽  
Weidong Yao ◽  
Yan Chang ◽  
...  

Abstract Background Previous studies have demonstrated that the common laryngoscopic approach (right-sided) and midline approach are both used for endotracheal intubation by direct laryngoscopy. Although the midline approach is commonly recommended for video laryngoscopy (VL) in the clinic, there is a lack of published evidences to support this practice. This study aimed to evaluate the effects of different video laryngoscopic approaches on intubation. Methods Two hundred sixty-two patients aged 18 years who underwent elective surgery under general anaesthesia and required endotracheal intubation were included in the present prospective, randomized, controlled study. The participants were randomly and equally allocated to the right approach (Group R) or midline approach (Group M). All the intubations were conducted by experienced anaesthetists using GlideScope video laryngoscopy. The primary outcomes were Cormack-Lehane laryngoscopic views (CLVs) and first-pass success (FPS) rates. The secondary outcomes were the time to glottis exposure, time to tracheal intubation, haemodynamic responses and other adverse events. Comparative analysis was performed between the groups. Results Finally, 262 patients completed the study, and all the tracheas were successfully intubated. No significant differences were observed in the patient characteristics and airway assessments (P > 0.05). Compared with Group R, Group M had a better CLV (χ2 = 14.706, P = 0.001) and shorter times to glottis exposure (8.82 ± 2.04 vs 12.38 ± 1.81; t = 14.94; P < 0.001) and tracheal intubation (37.19 ± 5.01 vs 45.23 ± 4.81; t = 13.25; P < 0.001), but no difference was found in the FPS rate (70.2% vs 71.8%; χ2 = 0.074; P = 0.446) and intubation procedure time (29.86 ± 2.56 vs 30.46 ± 2.97, t = 1.75, P = 0.081). Between the groups, the rates of hoarseness or sore throat, minor injury, hypoxemia and changes in SBP and HR showed no significant difference (P > 0.05). Conclusion Although the FPS rate did not differ based on the laryngoscopic approach, the midline approach could provide better glottis exposure and shorter times to glottis exposure and intubation. The midline approach should be recommended for teaching in VL-assisted endotracheal intubation. Trial registration The study was registered on May 18, 2019 in the Chinese Clinical Trial Registry (ChiCTR1900023252).

2019 ◽  
Author(s):  
Lianxiang Jiang ◽  
Shulin Qiu ◽  
Peng Zhang ◽  
Weidong Yao ◽  
Yan Chang ◽  
...  

Abstract Background: Previous studies have demonstrated that the common laryngoscopic approach (right-sided) and midline approach are both used for endotracheal intubation by direct laryngoscopy. Although the midline approach is commonly recommended for video laryngoscopy (VL) in the clinic, there is a lack of published evidences to support this practice. This study aimed to evaluate the effects of different video laryngoscopic approaches on intubation. Methods: Two hundred sixty-two patients aged 18 years who underwent elective surgery under general anaesthesia and required endotracheal intubation were included in the present prospective, randomized, controlled study. The participants were randomly and equally allocated to the right approach (Group R) or midline approach (Group M). All the intubations were conducted by experienced anaesthetists using GlideScope video laryngoscopy. The primary outcomes were Cormack-Lehane laryngoscopic views (CLVs) and first-pass success (FPS) rates. The secondary outcomes were the time to glottis exposure, time to tracheal intubation, haemodynamic responses and other adverse events. Comparative analysis was performed between the groups. Results: Finally, 262 patients completed the study, and all the tracheas were successfully intubated. No significant differences were observed in the patient characteristics and airway assessments ( P >0.05). Compared with Group R, Group M had a better CLV ( χ2 =14.706, P =0.001) and shorter times to glottis exposure (8.82±2.04 vs 12.38±1.81; t =14.94; P <0.001) and tracheal intubation (37.19±5.01 vs 45.23±4.81; t =13.25; P <0.001), but no difference was found in the FPS rate (70.2% vs 71.8%; χ2 =0.074; P =0.446) and intubation procedure time (29.86±2.56 vs 30.46±2.97, t =1.75, P =0.081). Between the groups, the rates of hoarseness or sore throat, minor injury, hypoxemia and changes in SBP and HR showed no significant difference ( P >0.05). Conclusion: Although the FPS rate did not differ based on the laryngoscopic approach, the midline approach could provide better glottis exposure and shorter times to glottis exposure and intubation. The midline approach should be recommended for teaching in VL-assisted endotracheal intubation. Trial registration: The study was registered in the Chinese Clinical Trial Registry ( ChiCTR-RNC-1900023252 ).


2019 ◽  
Author(s):  
Lianxiang Jiang ◽  
Shulin Qiu ◽  
Peng Zhang ◽  
Weidong Yao ◽  
Yan Chang ◽  
...  

Abstract Background: Previous studies have demonstrated that the common laryngoscopic approach (right-sided) and midline approach are both used for endotracheal intubation by direct laryngoscopy. Although the midline approach is commonly recommended for video laryngoscopy (VL) in the clinic, there is a lack of published evidences to support this practice. This study aimed to evaluate the effects of different video laryngoscopic approaches on intubation. Methods: Two hundred sixty-two patients aged 18 years who underwent elective surgery under general anaesthesia and required endotracheal intubation were included in the present prospective, randomized, controlled study. The participants were randomly and equally allocated to the right approach (Group R) or midline approach (Group M). All the intubations were conducted by experienced anaesthetists using GlideScope video laryngoscopy. The primary outcomes were Cormack-Lehane laryngoscopic views (CLVs) and first-pass success (FPS) rates. The secondary outcomes were the time to glottis exposure, time to tracheal intubation, haemodynamic responses and other adverse events. Comparative analysis was performed between the groups. Results: Finally, 262 patients completed the study, and all the tracheas were successfully intubated. No significant differences were observed in the patient characteristics and airway assessments ( P >0.05). Compared with Group R, Group M had a better CLV ( χ2 =14.706, P =0.001) and shorter times to glottis exposure (8.82±2.04 vs 12.38±1.81; t =14.94; P <0.001) and tracheal intubation (37.19±5.01 vs 45.23±4.81; t =13.25; P <0.001), but no difference was found in the FPS rate (70.2% vs 71.8%; χ2 =0.074; P =0.446) and intubation procedure time (29.86±2.56 vs 30.46±2.97, t =1.75, P =0.081). Between the groups, the rates of hoarseness or sore throat, minor injury, hypoxemia and changes in SBP and HR showed no significant difference ( P >0.05). Conclusion: Although the FPS rate did not differ based on the laryngoscopic approach, the midline approach could provide better glottis exposure and shorter times to glottis exposure and intubation. The midline approach should be recommended for teaching in VL-assisted endotracheal intubation. Trial registration: The study was registered on May 18, 2019 in the Chinese Clinical Trial Registry (ChiCTR1900023252).


2019 ◽  
Author(s):  
Lianxiang Jiang ◽  
Shulin Qiu ◽  
Peng Zhang ◽  
Weidong Yao ◽  
Yan Chang ◽  
...  

Abstract Background: Previous studies have demonstrated that the common laryngoscopic approach (right-sided) and midline approach are both used for endotracheal intubation by direct laryngoscopy. Although the midline approach is commonly recommended for video laryngoscopy (VL) in the clinic, there is a lack of published evidences to support this practice. This study aimed to evaluate the effects of different video laryngoscopic approaches on intubation. Methods: Two hundred sixty-two patients aged 18 years who underwent elective surgery under general anaesthesia and required endotracheal intubation were included in the present prospective, randomized, controlled study. The participants were randomly and equally allocated to the right approach (Group R) or midline approach (Group M). All the intubations were conducted by experienced anaesthetists using GlideScope video laryngoscopy. The primary outcomes were Cormack-Lehane laryngoscopic views (CLVs) and first-pass success (FPS) rates. The secondary outcomes were the time to glottis exposure, time to tracheal intubation, haemodynamic responses and other adverse events. Comparative analysis was performed between the groups. Results: Finally, 262 patients completed the study, and all the tracheas were successfully intubated. No significant differences were observed in the patient characteristics and airway assessments ( P >0.05). Compared with Group R, Group M had a better CLV ( χ2 =14.706, P =0.001) and shorter times to glottis exposure (8.82±2.04 vs 12.38±1.81; t =14.94; P <0.001) and tracheal intubation (37.19±5.01 vs 45.23±4.81; t =13.25; P <0.001), but no difference was found in the FPS rate (70.2% vs 71.8%; χ2 =0.074; P =0.446) and intubation procedure time (29.86±2.56 vs 30.46±2.97, t =1.75, P =0.081). Between the groups, the rates of hoarseness or sore throat, minor injury, hypoxemia and changes in SBP and HR showed no significant difference ( P >0.05). Conclusion: Although the FPS rate did not differ based on the laryngoscopic approach, the midline approach could provide better glottis exposure and shorter times to glottis exposure and intubation. The midline approach should be recommended for teaching in VL-assisted endotracheal intubation. Trial registration: The study was registered in the Chinese Clinical Trial Registry ( ChiCTR-RNC-1900023252 ).


2019 ◽  
Author(s):  
Lianxiang Jiang ◽  
Shulin Qiu ◽  
Peng Zhang ◽  
Weidong Yao ◽  
Yan Chang ◽  
...  

Abstract Background: Previous studies demonstrated that the common laryngoscopic approach (right-sided) and midline approach are both used for endotracheal intubation by direct laryngoscopy. Although a midline approach is commonly recommended for video laryngoscopy (VL) in clinical, lacking of published evidences to support it. The study aimed to evaluate the effects of different video laryngoscopic approach on intubation. Methods: Two hundred and sixty-two patients aged 18 years who underwent elective surgery in general anesthesia, requiring endotracheal intubation, were included in the prospective, randomized, controlled study. Participants were randomly and equally allocated to right approach (Group R) or midline approach (Group M). All intubations were conducted with GlideScope video laryngoscopy by experienced anaesthetists. The primary outcomes were Cormack-Lehane laryngoscopic views (CLV) and first-pass success (FPS) rate. The secondary outcomes were time to glottis exposure, time to tracheal intubation, hemodynamic response and other adverse events. Comparative analysis was performed between the both groups. Results: All patients ultimately were successfully intubated. No significant differences were observed in patient characteristics and airway assessments (P>0.05). Compared with Group R, Group M had a better CLV (χ2=14.706, P=0.001) and shorter time to glottis exposure (8.82±2.04 vs 12.38±1.81, t=14.94, P<0.001) and tracheal intubation (37.19±5.01 vs 45.23±4.81, t=13.25, P<0.001), but no difference in FPS rate (70.2% vs 71.8%, χ2=0.074, P=0.446). Between groups, the rates of hoarseness or sore throat, minor injury, hypoxemiaand changes of SBP and HR were noted no significant difference (P>0.05). Conclusion: Although FPS rate did not differ based upon laryngoscopic approach type; however, the midline approach could provide a better glottis exposure, shorter time to glottis exposure and intubation. The midline approach should be recommended for teaching in VL-assisted endotracheal intubation. Trial registration: The study was registered in Chinese Clinical Trial Registry (ChiCTR-RNC-13003898). Keywords: endotracheal intubation; video laryngoscopic; laryngoscopic approach


2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Marwan S. Rizk ◽  
Carine A. Zeeni ◽  
Joanna N. Bouez ◽  
Nathalie J. Bteich ◽  
Samia K. Sayyid ◽  
...  

Abstract Background Spinal anesthesia using the midline approach might be technically difficult in geriatric population. We hypothesized that pre-procedural ultrasound (US)-guided paramedian technique and pre-procedural US-guided midline technique would result in a different spinal anesthesia success rate at first attempt when compared with the conventional landmark-guided midline technique in elderly patients. Methods In this prospective, randomized, controlled study, one hundred-eighty consenting patients scheduled for elective surgery were randomized into the conventional surface landmark-guided midline technique (group LM), the pre-procedural US-guided paramedian technique (group UP), or the pre-procedural US-guided midline technique (group UM) with 60 patients in each group. All spinal anesthesia were performed by a novice resident. Results The successful dural puncture rate on first attempt (primary outcome) was higher in groups LM and UM (77 and 73% respectively) than in group UP (42%; P < 0.001). The median number of attempts was lower in groups LM and UM (1 [1] and 1 [1–1.75] respectively) than in group UP (2 [1, 2]; P < 0.001). The median number of passes was lower in groups LM and UM (2 [0.25–3] and 2 [0–4]; respectively) than in group UP (4 [2–7.75]; P < 0.001). The time taken to perform the spinal anesthesia was not different between groups LM and UM (87.24 ± 79.51 s and 116.32 ± 98.12 s, respectively) but shorter than in group UP (154.58 ± 91.51 s; P < 0.001). Conclusions A pre-procedural US scan did not improve the ease of midline and paramedian spinal anesthesia as compared to the conventional landmark midline technique when performed by junior residents in elderly population. Trial registration Retrospectively registered at Clinicaltrials.gov, registration number NCT02658058, date of registration: January 18, 2016.


2021 ◽  

Thermal and massage therapies have long been used to control pain. Although spinal thermal massage (STM) has been used worldwide, its effectiveness has not been proven in a controlled clinical study. We here conducted a non-randomized controlled trial to assess the pain-relieving and immunomodulatory effects of STM in old-aged patients experiencing pain or disability. The experimental group was treated with STM five times a week for 8 weeks and rehabilitative regular care (RRC). The control group was treated with only RRC. Pain and immunological parameters were tested before treatment and after 4 and 8 weeks of treatment. The scores of three pain parameters were lowered by STM, and the differences between the groups were statistically significant at the two time points (p < 0.01). Quality of life determined using the 3-level EuroQol five-dimensional questionnaire scores was significantly higher in patients in the experimental group than those in the control group. Effect sizes (ES) were in the range of medium to large in the pain-related measures (0.54–1.22). The total leukocyte counts and the proportions of lymphocytes and subsets were not significantly different between the groups, whereas the proportions of monocytes and natural killer (NK) cells were higher in the experimental group than in the control group after 8 weeks (p < 0.05). The production of interleukin (IL)-4 and interferon γ in T cells was not significantly different between the groups, whereas the production of IL-2 was high in the control group. However, there was a significant increase in IFN-γ production by NK cells in the experimental group (at 4 weeks, p < 0.05). ES were medium in the immunological measures (0.53–0.68). No significant difference was observed in the production of proinflammatory cytokines, IL-1β, tumor necrosis factor α, or IL-6 between the groups. In conclusion, STM treatment has a positive effect on subjective pain and quality of life. It also enhanced NK cell proportion and activity, suggesting that STM may be beneficial in the prevention of viral diseases and cancer in old-aged people.


2021 ◽  
Author(s):  
Yuyan Wu ◽  
Jinxuan Lin ◽  
Haiping Zeng ◽  
Yi Chen ◽  
Zhiqiang Chen ◽  
...  

Abstract Background: Recovery of gastrointestinal function after gynecological abdominal surgery is a major clinical problem. An effective intervention to promote the rapid recovery of gastrointestinal function postoperatively is lacking. This randomized trial investigated whether Xiangbin prescription (XBP) was feasible in terms of efficacy and safety on gastrointestinal function recovery in patients after gynecological abdominal surgery. Methods: A randomized controlled study was conducted, in which 190 patients with gynecological abdominal surgery who met the inclusion and exclusion criteria were enrolled. They were assigned randomly to XBP group, chewing gum group or blank control group, and respectively received the following treatments: took the XBP twice a day, chewed a piece of gum for about 15 minutes each 4 hours, or received conventional western basic treatment, starting on postoperative day 1 until defecation. Three groups were compared in terms of primary outcomes including the time of the first defecation and the time of the first flatus and secondary outcomes including the level of Ghrelin (GHRL) and the incidence of postoperative complications. Meanwhile, the safety of this trial was evaluated. Results: There was no statistical difference in baseline characteristics among the three groups. For the time of the first flatus, XBP group (22.33 ± 6.68 h) showed less time compared with the chewing gum group (23.06 ± 7.37 h), while it was shorter than that in the blank control group (25.86 ± 7.93 h) with significant difference (P < 0.05). As for the time of the first defecation, XBP group (38.65 ± 12.96 h) showed shorter time significantly compared with both the chewing gum group (47.29 ± 14.50 h) and the blank control group (54.01 ± 20.32 h) (P < 0.05). For the postoperative GHRL levels, XBP group was higher than that in the chewing gum group with no significant difference and had more significant improvement of the GHRL levels at postoperative day 3 compared with the blank control group (P < 0.05). For postoperative complications, XBP group had lower incidence than the other two groups but with no significant difference. For safety evaluations, no serious adverse events occurred in the three groups. Conclusions: XBP could promote the recovery of gastrointestinal function after gynecological abdominal surgery and it is overall safe. Trial registration: This trial was retrospectively registered by Chinese Clinical Trial Registry with the identifier number, ChiCTR1900026327, at September 30, 2019. http://www.chictr.org.cn/.


2021 ◽  
Author(s):  
Yu Yamamoto ◽  
Shohei Kimura ◽  
Hideki Kuniyoshi ◽  
Takanori Hiroe ◽  
Takako Terui ◽  
...  

Abstract BackgroundDuring endotracheal intubation training, only providing verbal guidance to students may result in inadequate recognition of the inner larynx and cause delays in mastering endotracheal intubation. Therefore, we introduced a deliberate practice approach to the education of residents in endotracheal intubation. For this purpose, a video laryngoscope was used to give the residents detailed feedback of the anesthesiology faculty. We hypothesized that if the anesthesiology faculty could provide sufficient and precise feedback of the larynx through the video monitor, the residents’ intubation skills would be retained for a more extended period.MethodsThis cluster randomized controlled study enrolled first-year residents who completed a two-month rotation at our department. Each rotation group (2–4 residents) was assigned to the Macintosh laryngoscope (ML) group or the McGRATH MAC video laryngoscope (MML) group. Endotracheal intubation skills were evaluated on a simulated mannequin immediately after the rotation, three months later, and six months later. The primary endpoint was the time required for intubation. The secondary endpoint was the percentage of glottic opening (POGO) score.ResultsForty-six residents participated in this study and were assigned to the ML group (n = 23) or the MML group (n = 23). The time required for intubation was significantly shorter in the MML group than in the ML group. The POGO score did not show any significant differences between the two groups; however, the POGO score of the MML group had a relatively narrower confidence interval than the ML group.ConclusionsWhen comparing endotracheal intubation training using the Macintosh laryngoscope and video laryngoscope, the McGRATH MAC video laryngoscope shortened the intubation procedure and facilitated long-term skill retention.Trial registrationClinical registry and trial number, URL: https://www.umin.ac.jp, UMIN000036643 date of registration: 2019/05/03, This study was retrospectively registered.


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