![]() There are three axes in the upper airway: the oral axis, pharyngeal axis, and laryngeal axis ( Fig. The upper airway is a kinked tube, rather than a straight one. 11.1 (StataCorp., College Station, TX, USA) and SAS ver. All statistical analyses were conducted using Stata ver. The results were considered significant at a threshold of P<0.05 (two-tailed). The participants who showed decreased post-PEFR values compared to pre-PEFR values were grouped as non-responders. If the number was below 30, the Kolmogorov-Smirnov test was performed to check the normal distribution. To compare mean PEFR before HT/CL (pre-PEFR) and PEFR after HT/CL (post-PEFR) values as a whole and by sex, height, body weight, BMI and response status, we used the paired t-test under assumption that values were normally distributed if the number was above 30. For categorical data, the chi-square test or the chi-square test with Fisher exact test for 2×2 tables was used. To compare baseline characteristics between male and female subjects, or between responders and non-responders, the Student’s t-test was used for normally distributed variables and the Mann-Whitney U-test was used for non-normally distributed variables. Discrete data are presented as counts and percentages. Exclusion criteria were as follows: 1) having a conflict of interest related to the authors’ affiliation with the School of Medicine, as was the case with medical and nursing students 2) concurrent upper or lower respiratory infection such as pharyngitis, bronchitis or pneumonia 3) chronic airway diseases such as asthma or chronic obstructive pulmonary disease 4) pulmonary tuberculosis or related complications 5) body mass index (BMI) ≥25 kg/m 2 (obese) or ≤18.5 kg/m 2 (underweight) 6) comorbidities such as hypertension, diabetes mellitus, chronic liver disease, chronic renal disease, cardiovascular disease, cerebrovascular disease or malignancy 7) known sleep apnea with possible distortion of the upper respiratory airway 8) conditions limiting the adoption of a supine position such as scoliosis 9) conditions limiting the adoption of the HT/CL position and 10) other conditions deemed as inappropriate for study participation by the authors.Ĭontinuous data are presented as median and interquartile range (IQR) or mean and standard deviation. All subjects were aged 20 years and were students at Chonbuk National University. The paradoxical pulse turned out to be the objective variable that was reconciled moreĪsthma crisis paradoxical pulse peak expiratory flow.Sixty healthy subjects (30 males and 30 females) were enrolled between March 1 and August 31, 2017. The oxihemoglobin saturation can identify the severe crises, but it does not establish significant differences between the light and moderate crises. Conclusion: This study shows to divergences between the clinical picture and the graduation of severity established by the peak expiratory flow, being observed that this measurement tends to overestimate the severity of the crisis. The crises were classified like light in the 46,68%, Moderate ones in 44,38%, severe 7,90% and like imminent respiratory unemployment in 1.02%. Results: The 26,8% it happened in men and the 73,2% in women. Materials and methods: This is an evaluative descriptive study, analyzed a total of 395 events in patients between the 14 and 86 years old, during July 2005 to December 2006 in the emergency room of Hospital Universidad del Norte, obtaining data about clinical data and epidemiologists. ![]() Objective: To establish the correlation among clinic classification of asthma crises, and the variables, peak expiratory flow, paradoxical pulse and oxihemoglobin saturation, to define which of these variables is more reliable like measurement of the severity of the crisis. Comparison between peak expiratory flow, paradoxical pulse and oxihemoglobin saturation, as index of severity of asthma exacerbation. ![]() BLANCO NUNEZ, Arcelio U MENDEZ BARRAZA, Juan Arturo and NAVARRO LECHUGA, Edgar. ![]()
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