Objectives : A systematic review was undertaken to evaluate the effectiveness of incision retention available to surgeons conducting open abdominal or pelvic surgeries. Both the ability of the retractor to retain the ...Objectives : A systematic review was undertaken to evaluate the effectiveness of incision retention available to surgeons conducting open abdominal or pelvic surgeries. Both the ability of the retractor to retain the wound and harm to the patient due to the retractor were reviewed. Methods : A search was conducted using the following databases: EMBASE, PubMed, BIOSIS, Engineering Village, Web of Science, Best practice, Science Direct, CRCnet BASE, Proquest, Wiley Online Library, and Comprehensive Biomaterial. Results : What the articles found were then narrowed down to those which matched the objective of the review. This resulted in ten articles to review. Two reviewers reviewed and summarized the articles. Femoral neuropathy was found to be a common complication due to Retractors. Other outcomes analysed or studied were found to be infected, postoperative pain and exposure provided. Femoral neuropathy can be estimated to occur at a rate between 2.6% and 7.5% in open pelvic and abdominal surgeries. The Alexis O-ring retractor was found to lower the required morphine intake following surgery when compared to the Belfour retractor. Conclusions : There is a lack of high quality/high levels of evidence studies that have been conducted on Retractors. Femoral neuropathy is the outcome most commonly documented in relation to Retractors. Surgeons need to be aware about the use and implementations of the retractors. Care should be taken in protecting the blades and during long surgery relocating retractors should be considered.展开更多
Objective:To evaluate the curative effect of surgical treatment of vocal cord polyp under self-retaining fibrolaryngoscope and fibrolaryngoscope.Methods: A total of 118 patients with vocal cord polyp who received surg...Objective:To evaluate the curative effect of surgical treatment of vocal cord polyp under self-retaining fibrolaryngoscope and fibrolaryngoscope.Methods: A total of 118 patients with vocal cord polyp who received surgical treatment in our hospital between August 2013 and August 2015 were included in the study, the treatment process was retrospectively analyzed, and according to different operation methods, patients were divided into observation group (n=61) who received surgical treatment under self-retaining fibrolaryngoscope and control group (n=57) who received surgical treatment under fibrolaryngoscope. Differences in voice electroglottography parameters, oxidative stress system indexes, trauma-related indexes and so on were compared between two groups of patients 2 weeks after operation.Results:Jitter, Shimmer and NNE levels of observation group were significantly lower than those of control group while HNR and SNR levels were significantly higher than those of control group;SOD T, SOD Cu-Zn and T-AOC content in serum of observation group were significantly higher than those of control group while H2O2 and AOPP content were significantly lower than those of control group;NPY,β-EP, PGI2, HMGB-1 and HSP72 content in serum of observation group were significantly lower than those of control group.Conclusions:Surgery under self-retaining fibrolaryngoscope can better realize the accurate resection of vocal cord polyp, protect the normal vocal cord function and also reduce the body trauma, and it is a more ideal way of surgery.展开更多
Airway management is a skill necessary for healthcare providers who manage patients. Intubation is a skill that both anesthesiologists and intensivists use daily. We present a case of a neonate that developed signific...Airway management is a skill necessary for healthcare providers who manage patients. Intubation is a skill that both anesthesiologists and intensivists use daily. We present a case of a neonate that developed significant worsening stridor after a successful intubation for a hernia repair. After 4 intubation attempts, with easy visualization of the vocal cords and unsuccessful placement of the endotracheal tube, the patient was emergently brought to the operating room for evaluation.展开更多
Tracheal intubation with Macintosh laryngoscope(MAC) might result in severe cardiovascular complications. The results of conducted studies investigating the effects of videolaryngoscopies on hemodynamic response of ...Tracheal intubation with Macintosh laryngoscope(MAC) might result in severe cardiovascular complications. The results of conducted studies investigating the effects of videolaryngoscopies on hemodynamic response of tracheal intubation are conflicting. We know little about the effects of videolaryngoscopies on cardiac output changes during tracheal intubation. We compared cardiac output(COP) and hemodynamic responses in normal blood pressure(n=60) and hypertensive patients(n=60) among 3 intubation devices: the MAC, the UE videolaryngoscopy ?(UE), and the UE video intubation stylet ?(VS). Cardiac index(CI), stroke volume index(SVI), heart rate(HR), systolic blood pressure(SBP) and diastolic blood pressure(DBP) were recorded using Lidco Rapid V2? preinduction, preintubation, and every minute for the first 5 min after intubation. We assessed oropharyngeal and laryngeal structures injury as well. Intubation time was significantly shorter than MAC groups(P〈0.001) only in UE group of normotensive and hypertensive patients. In normotensive patients, there were no significant differences in any of COP variables or hemodynamic variables among the three devices. In hypertensive patients, SBP and DBP in the MAC group were significantly higher(P〈0.05 or 〈0.01) than the UE and VS groups at 1, 2 and 3 min after intubation, but there were no significant differences in CI, SVI and HR among the three devices. There was no significant difference in oropharyngeal and laryngeal structures injury among all groups. It was concluded that both the UE and VS attenuate only the hemodynamic response to intubation as compared with the MAC in hypertensive patients, but not in normotensive patients.展开更多
BACKGROUND: Airway management in intensive care unit(ICU) patients is challenging. The aim of this study was to compare the rate of successful first-pass intubation in the ICU by using the direct laryngoscopy(DL) and ...BACKGROUND: Airway management in intensive care unit(ICU) patients is challenging. The aim of this study was to compare the rate of successful first-pass intubation in the ICU by using the direct laryngoscopy(DL) and that by using the video laryngoscopy(VL).METHODS: A randomized, non-blinded trial comparing first-pass success rate of intubation between VL and DL was performed. Patients were recruited in the period from August 2014 to August 2016. All physicians working at ICU received hands-on training in the use of the video and direct laryngoscope. The primary outcome measure was the first-pass intubation success. RESULTS: A total of 163 ICU patients underwent intubation during the study period(81 patients in VL group and 82 in DL group). The rate of successful first-pass intubation was not significantly different between the VL and the DL group(67.9% vs. 69.5%, P=0.824). Moreover, the overall intubation success and total number of attempts to achieve intubation success did not differ between the two groups. In patients with successful first-pass intubation, the median duration of the intubation procedure did not differ between the two groups. The Cormack-Lehane grades and the percentage of glottic opening score were similar, and no significant differences were found between the two groups. There were no statistical differences between the VL and the DL group in intubation complications(all P>0.05). CONCLUSION: Among ICU patients requiring intubation, there was no significant difference in the rate of successful first-pass intubation between VL and DL.展开更多
Objective:To assess the effects of lightwand and laryngoscopic intubation techniques in patients undergoing laparoscopic cholecystectomy (LC). Methods: 300 ASA physical status Ⅰ and Ⅱ patients, undergoing LC, we...Objective:To assess the effects of lightwand and laryngoscopic intubation techniques in patients undergoing laparoscopic cholecystectomy (LC). Methods: 300 ASA physical status Ⅰ and Ⅱ patients, undergoing LC, were randomly assigned to two groups, with 150 cases in each group. Patients in the LS group underwent endotracheal intubation using a standard direct-suspension laryngoscopic technique. Patients in the LW group were intubated by using transilhimination with a lightwand. Mean arterial pressure and heart rate were recorded before induction, and at 1, 3 and 5 rain after intubation. The incidence and of sore throat, hoarseness, and dysphagia was assessed twenty-four hours after surgery. Results: This study demonstrated no clinically significant difference in cardiovascular variables between the two techniques. Patients had a significantly lower incidence of sore throat, hoarseness, and dysphagia when the lightwand was used for intubation. Conclusion: This study suggests that lightwand intubation may decrease the incidence of postoperative sore throat, hoarseness, and dysphagia, thereby potentially increasing satisfaction in surgical patients. Therefore, more frequent use of the lightwand is recommended for endotracheal intubation.展开更多
Background: The critically ill or injured patient undergoing military medical evacuation may require emergent intubation. Intubation may be life-saving, but it carries risks.The novice or infrequent laryngoscopist has...Background: The critically ill or injured patient undergoing military medical evacuation may require emergent intubation. Intubation may be life-saving, but it carries risks.The novice or infrequent laryngoscopist has a distinct disadvantage because experience is critical for the rapid and safe establishment of a secured airway. This challenge is compounded by the austere environment of the back of an aircraft under blackout conditions. This study determined which of five different video-assisted intubation devices(VAIDs) was best suited for in-flight use by U.S. Air Force Critical Care Air Transport Teams by comparing time to successful intubation between novice and expert laryngoscopists under three conditions, Normal Airway Lights on(NAL), Difficult Airway Lights on(DAL) and Difficult Airway Blackout(DAB), using manikins on a standard military transport stanchion and the floor with a minimal amount of setup time and extraneous light emission.Methods: A convenience sample size of 40 participants(24 novices and 16 experts) attempted intubation with each of the 5 different video laryngoscopic devices on high-fidelity airway manikins. Time to tracheal intubation and number of optimization maneuvers used were recorded. Kruskal-Wallis testing determined significant differences between the VAIDs in time to intubation for each particular scenario. Devices with significant differences underwent pair-wise comparison testing using rank-sum analysis to further clarify the difference. Device assembly times, startup times and the amount of light emitted were recorded. Perceived ease of use was surveyed. Results: Novices were fastest with the Pentax AWS in all difficult airway scenarios. Experts recorded the shortest median times consistently using 3 of the 5 devices. The AWS was superior overall in 4 of the 6 scenarios tested. Experts and novices subjectively judged the Glide Scope Ranger as easiest to use. The light emitted by all the devices was less than the USAF-issued headlamp.Conclusion: Novices intubated fastest with the Pentax AWS in all difficult airway scenarios. The Glide Scope required the shortest setup time, and participants judged this device as the easiest to use. The Glide Scope and AWS exhibited the two fastest total setup times. Both devices are suitable for in-flight use by infrequent and seasoned laryngoscopists. Trial registration: not applicable.展开更多
Objective: To identify the presenting features of a laryngeal cleft in children. To compare rigid and flexible endoscopic methods available for identifying laryngeal cleft and determine their utility. Methods: The cha...Objective: To identify the presenting features of a laryngeal cleft in children. To compare rigid and flexible endoscopic methods available for identifying laryngeal cleft and determine their utility. Methods: The charts of all patients diagnosed with laryngeal cleft in a tertiary care institution between 2009 and 2010 were evaluated retrospectively for age, gender, comorbidity, presenting features, and results of bedside swallow evaluation. Findings on flexible and direct laryngoscopy, both performed under general anesthesia, were compared. Results: Eleven patients had a diagnosis of laryngeal cleft, confirmed by direct laryngoscopy. Nine of eleven had signs of aspiration on modified barium swallow study (MBSS). Of the eight subjects who underwent flexible laryngoscopy by a pulmonologist, a deep interarytenoid groove was only reported in four cases. In all eleven cases, the arytenoids could be physically separated during direct laryngoscopy, allowing for definitive diagnosis of the cleft and identification of its type and severity. Conclusion: Video swallow studies and flexible laryngoscopy may raise suspicion or even diagnose a laryngeal cleft, however, a laryngeal cleft must be confirmed by direct laryngscopy in which the interarytenoid space is palpated. Furthermore, a patient in whom symptoms persist but no laryngeal cleft is identified on flexible examination should have a direct laryngoscopy to rule out a cleft.展开更多
Objective: To compare the laryngoscopic view and the hemodynamic changes by using flexitip McCoy laryngoscope with Macintosh laryngoscope. Method: Study design-Prospective randomized controlled study. A total of 220 p...Objective: To compare the laryngoscopic view and the hemodynamic changes by using flexitip McCoy laryngoscope with Macintosh laryngoscope. Method: Study design-Prospective randomized controlled study. A total of 220 patients were included in the study. Patients were allocated on the basis of their airway anatomy in to two groups, one is predicted easy group and the other one was predicted difficult airway group. Among each group, half of the patient intubation was performed with Macintosh blade and the other half was intubated with the help of McCoy blade. The airway prediction was done on the basis of Mallampati grade, thyromental distance, inter incisor gap, jaw protrusion and weight of the patient. Larygoscopic view and hemodynamic changes were recorded. Results: The change in pulse rate was significantly (p = 0.01) higher among the patients of Group B (85.02 ± 10.13) as compared to Group A (79.20 ± 13.11) after induction in predicted easy patients. Similar observation was found for pulse rate after laryngoscopy among both predicted easy and difficult patients. The diastolic blood pressure was significantly (p = 0.0001) higher in Group B (86.34 ± 9.78) than Group A (77.12 ± 11.66) after induction among predicted easy patients. However, diastolic blood pressure was significantly (p = 0.0004) higher in Group A (82.00 ± 10.98) compared with Group B (75.00 ± 9.06) after induction among predicted difficult patients. The average time taken during laryngoscopy was in-significantly (p > 0.05) higher in Group B (13.90 ± 5.95) compared with Group A (12.42 ± 3.58) among predicted easy patients. However, the time taken was significantly (p = 0.0001) higher in Group A (20.83 ± 2.47) than Group B (12.66 ± 3.0) in predicted difficult patients. A majority of the patients of both the groups were in Grade I (Group A = 61.8%, Group B = 81.8%) followed by Grade II (Group A = 38.2%, Group B = 18.2%) among predicted easy patients. Conclusion: It was concluded that the McCoy blade may be an answer to Macintosh blade in difficult airway cases, but not the substitute of Macintosh blade in every case. The McCoy blade improved laryngeal view in patients with limited neck extension.展开更多
BACKGROUND In anesthesia practice,orotracheal intubation remains the primary concern of the anesthesiologist.The introduction of video laryngoscopy(VL)has increased the success rate of orotracheal intubation;however,c...BACKGROUND In anesthesia practice,orotracheal intubation remains the primary concern of the anesthesiologist.The introduction of video laryngoscopy(VL)has increased the success rate of orotracheal intubation;however,conflicting results have been reported regarding the usefulness of the current technique with VL in clinical practice.AIM To describe a modification to improve intubation with VL,followed by evaluation of the practice in vivo.METHODS First,a mannequin trial was conducted with operators having different experience and background.Then,a retrospective analysis was performed for an>1-year period with patients who underwent general anesthesia with orotracheal intubation.The endotracheal tube used had been pre-formed with two curves.Stepwise intubation had been performed with direct eye vision,followed by screen assistance and rotation of the tube as needed to direct it toward the glottis.In the mannequin trial,the outcome measures were quantification of torque(force with angular acceleration during levering),need for external maneuvers,and time to intubate.In the clinical experience,orotracheal intubation used VL(pre-formed tube)or direct laryngoscopy(DL)at the anesthetist’s discretion and throat discomfort was reported by the patient.RESULTS In the mannequin trials using VL,there was less torque with the pre-formed tube than with a regular tube(8%and 65%,respectively).The first-pass rate was higher with the pre-formed tube(95%)than with a regular tube(81%).However,the time to intubate was longer with the pre-formed tube than with a regular tube(22 s and 12 s,respectively).In clinical practice,562 patients underwent surgery under general anesthesia with orotracheal intubation using either VL(n=244)or DL(n=318)at the discretion of the attending anesthetist.VL was specifically planned in 62 of the patients,due to anticipated difficulty.Second attempts by readjustment of the curve of the tube were significantly fewer with VL than with DL(10%vs 18%).Throat discomfort was reported by fewer patients who underwent VL than those who underwent DL(6%vs 24%).CONCLUSION Pre-formed endotracheal tube with stepwise insertion produces less torque,fewer external maneuvers and higher first-pass success rate during VL intubation.Further,prospective studies are warranted.展开更多
目的:探讨纤维内镜评估吞咽功能(fiberoptic endoscopic evaluation of swallowing, FEES)在累及舌根的舌癌(both the oral tongue and the base of the tongue, OBOT)患者中的临床应用。方法:对2022年4月至2023年5月于我院初诊为累及O...目的:探讨纤维内镜评估吞咽功能(fiberoptic endoscopic evaluation of swallowing, FEES)在累及舌根的舌癌(both the oral tongue and the base of the tongue, OBOT)患者中的临床应用。方法:对2022年4月至2023年5月于我院初诊为累及OBOT病变的患者术前、术后1周、1月和1年进行吞咽功能评估。吞咽功能的评估包括MD安德森吞咽困难量表(MD Anderson Dysphagia Inventory, MDADI)、华盛顿大学生活质量问卷(University of Washington Quality-of-Life Questionnaire, UW-QOL)、头颈癌表现状态量表(Performance Status Scale for Head and Neck Cancer, PSS-HN)、洼田饮水试验(water swallow test, WST)、舌运动测量和FEES[包括渗透-吸入量表(Penetration-Aspiration Scale, PAS)和口咽吞咽效率(oropharyngeal swallowing efficiency, OPSE)]。并对FEES的评估OBOT的可靠性进行统计分析。结果:共有21例患者纳入研究。FEES具有较高的诊断价值(ROC曲线下面积=0.916)。FEES结果与WST和MDADI评分显著相关(P<0.001)。术后1年,累及OBOT病变患者的吞咽功能恢复到术前水平,但OPSE明显下降,生活质量仍受影响(P<0.001)。结论:FEES是评估累及OBOT病变患者术后吞咽功能的可靠方法,值得临床推广。在术后随访中,虽然这些患者的吞咽功能可以恢复,但应注意吞咽效率和生活质量。展开更多
文摘Objectives : A systematic review was undertaken to evaluate the effectiveness of incision retention available to surgeons conducting open abdominal or pelvic surgeries. Both the ability of the retractor to retain the wound and harm to the patient due to the retractor were reviewed. Methods : A search was conducted using the following databases: EMBASE, PubMed, BIOSIS, Engineering Village, Web of Science, Best practice, Science Direct, CRCnet BASE, Proquest, Wiley Online Library, and Comprehensive Biomaterial. Results : What the articles found were then narrowed down to those which matched the objective of the review. This resulted in ten articles to review. Two reviewers reviewed and summarized the articles. Femoral neuropathy was found to be a common complication due to Retractors. Other outcomes analysed or studied were found to be infected, postoperative pain and exposure provided. Femoral neuropathy can be estimated to occur at a rate between 2.6% and 7.5% in open pelvic and abdominal surgeries. The Alexis O-ring retractor was found to lower the required morphine intake following surgery when compared to the Belfour retractor. Conclusions : There is a lack of high quality/high levels of evidence studies that have been conducted on Retractors. Femoral neuropathy is the outcome most commonly documented in relation to Retractors. Surgeons need to be aware about the use and implementations of the retractors. Care should be taken in protecting the blades and during long surgery relocating retractors should be considered.
文摘Objective:To evaluate the curative effect of surgical treatment of vocal cord polyp under self-retaining fibrolaryngoscope and fibrolaryngoscope.Methods: A total of 118 patients with vocal cord polyp who received surgical treatment in our hospital between August 2013 and August 2015 were included in the study, the treatment process was retrospectively analyzed, and according to different operation methods, patients were divided into observation group (n=61) who received surgical treatment under self-retaining fibrolaryngoscope and control group (n=57) who received surgical treatment under fibrolaryngoscope. Differences in voice electroglottography parameters, oxidative stress system indexes, trauma-related indexes and so on were compared between two groups of patients 2 weeks after operation.Results:Jitter, Shimmer and NNE levels of observation group were significantly lower than those of control group while HNR and SNR levels were significantly higher than those of control group;SOD T, SOD Cu-Zn and T-AOC content in serum of observation group were significantly higher than those of control group while H2O2 and AOPP content were significantly lower than those of control group;NPY,β-EP, PGI2, HMGB-1 and HSP72 content in serum of observation group were significantly lower than those of control group.Conclusions:Surgery under self-retaining fibrolaryngoscope can better realize the accurate resection of vocal cord polyp, protect the normal vocal cord function and also reduce the body trauma, and it is a more ideal way of surgery.
文摘Airway management is a skill necessary for healthcare providers who manage patients. Intubation is a skill that both anesthesiologists and intensivists use daily. We present a case of a neonate that developed significant worsening stridor after a successful intubation for a hernia repair. After 4 intubation attempts, with easy visualization of the vocal cords and unsuccessful placement of the endotracheal tube, the patient was emergently brought to the operating room for evaluation.
文摘Tracheal intubation with Macintosh laryngoscope(MAC) might result in severe cardiovascular complications. The results of conducted studies investigating the effects of videolaryngoscopies on hemodynamic response of tracheal intubation are conflicting. We know little about the effects of videolaryngoscopies on cardiac output changes during tracheal intubation. We compared cardiac output(COP) and hemodynamic responses in normal blood pressure(n=60) and hypertensive patients(n=60) among 3 intubation devices: the MAC, the UE videolaryngoscopy ?(UE), and the UE video intubation stylet ?(VS). Cardiac index(CI), stroke volume index(SVI), heart rate(HR), systolic blood pressure(SBP) and diastolic blood pressure(DBP) were recorded using Lidco Rapid V2? preinduction, preintubation, and every minute for the first 5 min after intubation. We assessed oropharyngeal and laryngeal structures injury as well. Intubation time was significantly shorter than MAC groups(P〈0.001) only in UE group of normotensive and hypertensive patients. In normotensive patients, there were no significant differences in any of COP variables or hemodynamic variables among the three devices. In hypertensive patients, SBP and DBP in the MAC group were significantly higher(P〈0.05 or 〈0.01) than the UE and VS groups at 1, 2 and 3 min after intubation, but there were no significant differences in CI, SVI and HR among the three devices. There was no significant difference in oropharyngeal and laryngeal structures injury among all groups. It was concluded that both the UE and VS attenuate only the hemodynamic response to intubation as compared with the MAC in hypertensive patients, but not in normotensive patients.
文摘BACKGROUND: Airway management in intensive care unit(ICU) patients is challenging. The aim of this study was to compare the rate of successful first-pass intubation in the ICU by using the direct laryngoscopy(DL) and that by using the video laryngoscopy(VL).METHODS: A randomized, non-blinded trial comparing first-pass success rate of intubation between VL and DL was performed. Patients were recruited in the period from August 2014 to August 2016. All physicians working at ICU received hands-on training in the use of the video and direct laryngoscope. The primary outcome measure was the first-pass intubation success. RESULTS: A total of 163 ICU patients underwent intubation during the study period(81 patients in VL group and 82 in DL group). The rate of successful first-pass intubation was not significantly different between the VL and the DL group(67.9% vs. 69.5%, P=0.824). Moreover, the overall intubation success and total number of attempts to achieve intubation success did not differ between the two groups. In patients with successful first-pass intubation, the median duration of the intubation procedure did not differ between the two groups. The Cormack-Lehane grades and the percentage of glottic opening score were similar, and no significant differences were found between the two groups. There were no statistical differences between the VL and the DL group in intubation complications(all P>0.05). CONCLUSION: Among ICU patients requiring intubation, there was no significant difference in the rate of successful first-pass intubation between VL and DL.
文摘Objective:To assess the effects of lightwand and laryngoscopic intubation techniques in patients undergoing laparoscopic cholecystectomy (LC). Methods: 300 ASA physical status Ⅰ and Ⅱ patients, undergoing LC, were randomly assigned to two groups, with 150 cases in each group. Patients in the LS group underwent endotracheal intubation using a standard direct-suspension laryngoscopic technique. Patients in the LW group were intubated by using transilhimination with a lightwand. Mean arterial pressure and heart rate were recorded before induction, and at 1, 3 and 5 rain after intubation. The incidence and of sore throat, hoarseness, and dysphagia was assessed twenty-four hours after surgery. Results: This study demonstrated no clinically significant difference in cardiovascular variables between the two techniques. Patients had a significantly lower incidence of sore throat, hoarseness, and dysphagia when the lightwand was used for intubation. Conclusion: This study suggests that lightwand intubation may decrease the incidence of postoperative sore throat, hoarseness, and dysphagia, thereby potentially increasing satisfaction in surgical patients. Therefore, more frequent use of the lightwand is recommended for endotracheal intubation.
基金Award number FA8650-11-2-6B03 was issued on October 27,2010 by the United States Air Force's Air Force Materiel Command at USAF/AFMC,Det 1 AF Research Laboratory,2310 Eight St.,Building 167,Wright-Patterson AFB,OH,USA for the allocated sum of $124,000.00 with an award amount of $132,373.00 by Grant Officer Timothy Hannah.The Principal Investigator on the award was Dr.Todd E.Carter
文摘Background: The critically ill or injured patient undergoing military medical evacuation may require emergent intubation. Intubation may be life-saving, but it carries risks.The novice or infrequent laryngoscopist has a distinct disadvantage because experience is critical for the rapid and safe establishment of a secured airway. This challenge is compounded by the austere environment of the back of an aircraft under blackout conditions. This study determined which of five different video-assisted intubation devices(VAIDs) was best suited for in-flight use by U.S. Air Force Critical Care Air Transport Teams by comparing time to successful intubation between novice and expert laryngoscopists under three conditions, Normal Airway Lights on(NAL), Difficult Airway Lights on(DAL) and Difficult Airway Blackout(DAB), using manikins on a standard military transport stanchion and the floor with a minimal amount of setup time and extraneous light emission.Methods: A convenience sample size of 40 participants(24 novices and 16 experts) attempted intubation with each of the 5 different video laryngoscopic devices on high-fidelity airway manikins. Time to tracheal intubation and number of optimization maneuvers used were recorded. Kruskal-Wallis testing determined significant differences between the VAIDs in time to intubation for each particular scenario. Devices with significant differences underwent pair-wise comparison testing using rank-sum analysis to further clarify the difference. Device assembly times, startup times and the amount of light emitted were recorded. Perceived ease of use was surveyed. Results: Novices were fastest with the Pentax AWS in all difficult airway scenarios. Experts recorded the shortest median times consistently using 3 of the 5 devices. The AWS was superior overall in 4 of the 6 scenarios tested. Experts and novices subjectively judged the Glide Scope Ranger as easiest to use. The light emitted by all the devices was less than the USAF-issued headlamp.Conclusion: Novices intubated fastest with the Pentax AWS in all difficult airway scenarios. The Glide Scope required the shortest setup time, and participants judged this device as the easiest to use. The Glide Scope and AWS exhibited the two fastest total setup times. Both devices are suitable for in-flight use by infrequent and seasoned laryngoscopists. Trial registration: not applicable.
文摘Objective: To identify the presenting features of a laryngeal cleft in children. To compare rigid and flexible endoscopic methods available for identifying laryngeal cleft and determine their utility. Methods: The charts of all patients diagnosed with laryngeal cleft in a tertiary care institution between 2009 and 2010 were evaluated retrospectively for age, gender, comorbidity, presenting features, and results of bedside swallow evaluation. Findings on flexible and direct laryngoscopy, both performed under general anesthesia, were compared. Results: Eleven patients had a diagnosis of laryngeal cleft, confirmed by direct laryngoscopy. Nine of eleven had signs of aspiration on modified barium swallow study (MBSS). Of the eight subjects who underwent flexible laryngoscopy by a pulmonologist, a deep interarytenoid groove was only reported in four cases. In all eleven cases, the arytenoids could be physically separated during direct laryngoscopy, allowing for definitive diagnosis of the cleft and identification of its type and severity. Conclusion: Video swallow studies and flexible laryngoscopy may raise suspicion or even diagnose a laryngeal cleft, however, a laryngeal cleft must be confirmed by direct laryngscopy in which the interarytenoid space is palpated. Furthermore, a patient in whom symptoms persist but no laryngeal cleft is identified on flexible examination should have a direct laryngoscopy to rule out a cleft.
文摘Objective: To compare the laryngoscopic view and the hemodynamic changes by using flexitip McCoy laryngoscope with Macintosh laryngoscope. Method: Study design-Prospective randomized controlled study. A total of 220 patients were included in the study. Patients were allocated on the basis of their airway anatomy in to two groups, one is predicted easy group and the other one was predicted difficult airway group. Among each group, half of the patient intubation was performed with Macintosh blade and the other half was intubated with the help of McCoy blade. The airway prediction was done on the basis of Mallampati grade, thyromental distance, inter incisor gap, jaw protrusion and weight of the patient. Larygoscopic view and hemodynamic changes were recorded. Results: The change in pulse rate was significantly (p = 0.01) higher among the patients of Group B (85.02 ± 10.13) as compared to Group A (79.20 ± 13.11) after induction in predicted easy patients. Similar observation was found for pulse rate after laryngoscopy among both predicted easy and difficult patients. The diastolic blood pressure was significantly (p = 0.0001) higher in Group B (86.34 ± 9.78) than Group A (77.12 ± 11.66) after induction among predicted easy patients. However, diastolic blood pressure was significantly (p = 0.0004) higher in Group A (82.00 ± 10.98) compared with Group B (75.00 ± 9.06) after induction among predicted difficult patients. The average time taken during laryngoscopy was in-significantly (p > 0.05) higher in Group B (13.90 ± 5.95) compared with Group A (12.42 ± 3.58) among predicted easy patients. However, the time taken was significantly (p = 0.0001) higher in Group A (20.83 ± 2.47) than Group B (12.66 ± 3.0) in predicted difficult patients. A majority of the patients of both the groups were in Grade I (Group A = 61.8%, Group B = 81.8%) followed by Grade II (Group A = 38.2%, Group B = 18.2%) among predicted easy patients. Conclusion: It was concluded that the McCoy blade may be an answer to Macintosh blade in difficult airway cases, but not the substitute of Macintosh blade in every case. The McCoy blade improved laryngeal view in patients with limited neck extension.
基金the Ethics and Research Committee of University Hospital Sharjah,No.UHS-HERC-014-30072019.
文摘BACKGROUND In anesthesia practice,orotracheal intubation remains the primary concern of the anesthesiologist.The introduction of video laryngoscopy(VL)has increased the success rate of orotracheal intubation;however,conflicting results have been reported regarding the usefulness of the current technique with VL in clinical practice.AIM To describe a modification to improve intubation with VL,followed by evaluation of the practice in vivo.METHODS First,a mannequin trial was conducted with operators having different experience and background.Then,a retrospective analysis was performed for an>1-year period with patients who underwent general anesthesia with orotracheal intubation.The endotracheal tube used had been pre-formed with two curves.Stepwise intubation had been performed with direct eye vision,followed by screen assistance and rotation of the tube as needed to direct it toward the glottis.In the mannequin trial,the outcome measures were quantification of torque(force with angular acceleration during levering),need for external maneuvers,and time to intubate.In the clinical experience,orotracheal intubation used VL(pre-formed tube)or direct laryngoscopy(DL)at the anesthetist’s discretion and throat discomfort was reported by the patient.RESULTS In the mannequin trials using VL,there was less torque with the pre-formed tube than with a regular tube(8%and 65%,respectively).The first-pass rate was higher with the pre-formed tube(95%)than with a regular tube(81%).However,the time to intubate was longer with the pre-formed tube than with a regular tube(22 s and 12 s,respectively).In clinical practice,562 patients underwent surgery under general anesthesia with orotracheal intubation using either VL(n=244)or DL(n=318)at the discretion of the attending anesthetist.VL was specifically planned in 62 of the patients,due to anticipated difficulty.Second attempts by readjustment of the curve of the tube were significantly fewer with VL than with DL(10%vs 18%).Throat discomfort was reported by fewer patients who underwent VL than those who underwent DL(6%vs 24%).CONCLUSION Pre-formed endotracheal tube with stepwise insertion produces less torque,fewer external maneuvers and higher first-pass success rate during VL intubation.Further,prospective studies are warranted.
文摘目的:探讨纤维内镜评估吞咽功能(fiberoptic endoscopic evaluation of swallowing, FEES)在累及舌根的舌癌(both the oral tongue and the base of the tongue, OBOT)患者中的临床应用。方法:对2022年4月至2023年5月于我院初诊为累及OBOT病变的患者术前、术后1周、1月和1年进行吞咽功能评估。吞咽功能的评估包括MD安德森吞咽困难量表(MD Anderson Dysphagia Inventory, MDADI)、华盛顿大学生活质量问卷(University of Washington Quality-of-Life Questionnaire, UW-QOL)、头颈癌表现状态量表(Performance Status Scale for Head and Neck Cancer, PSS-HN)、洼田饮水试验(water swallow test, WST)、舌运动测量和FEES[包括渗透-吸入量表(Penetration-Aspiration Scale, PAS)和口咽吞咽效率(oropharyngeal swallowing efficiency, OPSE)]。并对FEES的评估OBOT的可靠性进行统计分析。结果:共有21例患者纳入研究。FEES具有较高的诊断价值(ROC曲线下面积=0.916)。FEES结果与WST和MDADI评分显著相关(P<0.001)。术后1年,累及OBOT病变患者的吞咽功能恢复到术前水平,但OPSE明显下降,生活质量仍受影响(P<0.001)。结论:FEES是评估累及OBOT病变患者术后吞咽功能的可靠方法,值得临床推广。在术后随访中,虽然这些患者的吞咽功能可以恢复,但应注意吞咽效率和生活质量。