The Comparison of Duration Endotracheal Tube Insertion Using Aerosol Box And without Aerosol Box in Elective Surgery Patients in the Covid-19 Pandemic

Introduction. The aerosol box can reduce the risk of droplet and aerosol transmission from the patient to the operator when performing intubation, but in practice, an aerosol box makes the glottis visualization less evident, and the operator moves less space with less space the aerosol box. This study aimed to compare ETT duration using an aerosol box and without an aerosol box using a video laryngoscope. Methods: This study was a clinical trial with a post-test-only control design. The study was carried out from February 2021 to May 2021 at the Central Operating Theater of dr. Mohammad Hoesin General Hospital Palembang. The sample in this study was all patients who underwent elective surgery under general anesthesia using intubation at the Central Surgical Installation of dr. Mohammad Hoesin Palembang. After the data is collected, it is analyzed using the SPSS 22.0 program with the appropriate test. Results. There were no differences in subject characteristics (age, sex, BMI, Mallampati score, TMD, Cormack Lehane, limited mouth opening, short neck, limited mouth movement) between the group using the aerosol box and the group without the aerosol box. The duration of intubation without an aerosol box is 30.67 + 2.63 seconds, and using an aerosol box is 44.53 + 2.89 seconds. There was a significant difference between the two groups in the duration of patient intubation (p < 0.001). However, there was no significant difference in complications in the two groups (p >0.05). Conclusion. The duration of the endotracheal tube insertion using an aerosol box is more extended than without an aerosol box in elective surgery patients.

Association of Elbow Flexor MRI Fat Fraction With Loss of Hand-to-Mouth Movement in Patients With Duchenne Muscular Dystrophy

Objective:To study the potential of quantitative MRI (qMRI) fat fraction (FF) as biomarker in non-ambulant Duchenne muscular dystrophy (DMD) patients, we assessed the additive predictive value of elbow flexor FF to age on loss of hand-to-mouth movement.Methods:Non-ambulant DMD patients (≥8 years) were included. 4-point Dixon MRI scans of the right upper arm were performed at baseline and at 12, 18 or 24 months follow-up. Elbow flexor FFs were determined from five central slices. Loss of hand-to-mouth movement was determined at study visits and by phone-calls every four months. FFs were fitted to a sigmoidal curve using a mixed model with random slope to predict individual trajectories. The added predictive value of elbow flexor FF to age on loss of hand-to-mouth movement was calculated from a Cox model with the predicted FF as a time varying covariate, yielding a hazard ratio.Results:Forty-eight MRIs of 20 DMD patients were included. The hazard ratio of a percent-point increase in elbow flexor FF for the time to loss of hand-to-mouth movement was 1.12 (95%-confidence interval 1.04-1.21; p=0.002). This corresponded to a 3.13-fold increase of the instantaneous risk of loss of hand-to-mouth movement in patients with a 10 percent-points higher elbow flexor FF at any age.Conclusion:In this prospective study, elbow flexor FF predicted loss of hand-to-mouth movement independent of age. qMRI measured elbow flexor FF can be used as surrogate endpoint or stratification tool for clinical trials in non-ambulant DMD patients.Classification of Evidence:This study provides Class II evidence that qMRI FF of elbow flexor muscles in patients with DMD predicts loss of hand-to-mouth movement independent of age.

The Process of Acquiring Declarative Sentence on Aphasia

The present study investigates the process of acquiring declarative sentences in aphasia language learners. This study seeks to address the question of how the process of an aphasia language learner to acquire declarative sentences. Using a case study, the process of interview was implemented to explore the subject's response toward this issue. The subject is an adult language learner who is 69 years old. The data were obtained from interviews and documents. The interview section was used to explore the process of acquiring declarative sentences, and the documents were used to check the validity of the interview. The data analysis of acquiring declarative sentences showed: (1) the process of acquiring the language on an adult is through behaviorist theory that consists of subject's routinizes in reading books, newspapers, and comics. (2) In adult language learners, the duration of acquiring the language is not too long and challenging. The subject takes a significant effort to deal with various activities, and it is the characteristic of an adult in acquiring the language. (3) In the construction of declarative sentences, the subjects could produce six sentences correctly and no grammar errors. He also could interact with others through those sentences. The challenge is on the way he produces, which is slowly mouth movement. Additionally, we open the gate of future research with pieces of evidence. It was recommended the future research on this study might be conducted in a quantitative method with more adult language learners involved.

Independent mechanisms of temporal and linguistic cue correspondence benefiting audiovisual speech processing

When listening is difficult, seeing the face of the talker aids speech comprehension. Faces carry both temporal (low-level physical correspondence of mouth movement and auditory speech) and linguistic (learned physical correspondences of mouth shape (viseme) and speech sound (phoneme)) cues. Listeners participated in two experiments investigating how these cues may be used to process sentences when maskers are present. In Experiment I, faces were rotated to disrupt linguistic but not temporal cue correspondence. Listeners suffered a deficit in speech comprehension when the faces were rotated, indicating that visemes are processed in a rotation-dependent manner, and that linguistic cues aid comprehension. In Experiment II, listeners were asked to detect pitch modulation in the target speech with upright and inverted faces that either matched the target or masker speech such that performance differences could be explained by binding, an early multisensory integration mechanism distinct from traditional late integration. Performance in this task replicated previous findings that temporal integration induces binding, but there was no behavioral evidence for a role of linguistic cues in binding. Together these experiments point to temporal cues providing a speech processing benefit through binding and linguistic cues providing a benefit through late integration.

Predicting Students' Attention Level with Interpretable Facial and Head Dynamic Features in an Online Tutoring System (Student Abstract)

Engaged learners are effective learners. Even though it is widely recognized that engagement plays a vital role in learning effectiveness, engagement remains to be an elusive psychological construct that is yet to find a consensus definition and reliable measurement. In this study, we attempted to discover the plausible operational definitions of engagement within an online learning context. We achieved this goal by first deriving a set of interpretable features on dynamics of eyes, head and mouth movement from facial landmarks extractions of video recording when students interacting with an online tutoring system. We then assessed their predicative value for engagement which was approximated by synchronized measurements from commercial EEG brainwave headset worn by students. Our preliminary results show that those features reduce root mean-squared error by 29% compared with default predictor and we found that the random forest model performs better than a linear regressor.