scholarly journals Effects of Supine and Prone Positions on Nasal Patency in Healthy Individuals

2021 ◽  
pp. 014556132110154
Author(s):  
Geng-He Chang ◽  
Cheng-Ming Hsu ◽  
Ethan I. Huang ◽  
Hsin-Yi Tsai ◽  
Yun-Ting Wang ◽  
...  
Keyword(s):  
Prone Position ◽  
Supine Position ◽  
Acoustic Rhinometry ◽  
Sitting Position ◽  
Upper Respiratory Tract ◽  
Nasal Patency ◽  
Healthy Individuals ◽  
Level Of Evidence ◽  
Cross Sectional ◽  
Vas Scores

Objectives: Supine position reduces nasal patency compared with that in the sitting position; however, data on the effects of prone position on nasal patency is lacking. Methods: We assessed the nasal patency of 30 healthy individuals without upper respiratory tract disorders by using visual analog scale (VAS) score and acoustic rhinometry in 7 positions: sitting; frontal, right, and left supine; and frontal, right, and left prone. Results: According to the VAS scores, compared with that in the sitting position, both the supine and prone positions significantly increased subjective nasal obstruction ( P < .001). The prone position had a more significant effect than did the supine position ( P = .017). The results of minimal cross-sectional area measured through acoustic rhinometry demonstrated that both the supine and prone positions reduced the nasal patency significantly, but without significant differences between the effects of prone and supine positions ( P = .794). Conclusion: This is the first study to elucidate that the prone position can significantly reduce the nasal patency in healthy individuals through subjective and objective assessments. Level of Evidence: IV

scholarly journals Reproducibility and agreement between three positions for handgrip assessment

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Olga-Cecilia Vargas-Pinilla ◽  
Eliana-Isabel Rodríguez-Grande
Keyword(s):  
Supine Position ◽  
Cross Sectional Study ◽  
Sitting Position ◽  
Average Difference ◽  
Cross Sectional ◽  
Hand Grip ◽  
Standardization Process ◽  
The One ◽  
Level Of Agreement ◽  
Apparently Healthy

AbstractThe protocol established for taking hand grip dynamometry measurements determines that the patient must be in a sitting position. This protocol cannot be applied due to the patient’s conditions in some cases, such as abdominal surgery, musculoskeletal spine or hip injuries. The purpose was to determine the reproducibility and level of agreement between the Handgrip dynamometry in supine position with the elbow flexed or extended, and the one measured in the sitting position, the design was a descriptive cross-sectional study. The population were young apparently healthy between 18 and 30 years of age (N = 201). Handgrip measurement was performed on both upper limbs in a sitting position with a flexed elbow, a supine position with a flexed elbow, and supine position with the elbow extended. Reproducibility was nearly perfect in all positions (ICC 0.95–0.97). Regarding the level of agreement for the comparison between sitting and supine positions with a flexed elbow, an average difference of − 0.406. For supine position with an extended elbow and supine position with a flexed elbow, the average difference was − 1.479. Considering the results, clinicians or researchers can choose any of the positions evaluated herein and obtain reliable results as long as the standardization process is followed.

Reproducibility of Acoustic Rhinometry in the Investigation of Occupational Rhinitis

2007 ◽  
Vol 21 (4) ◽  
pp. 474-477 ◽  
Author(s):  
Roberto Castano ◽  
Gilles Thériault ◽  
Denyse Gautrin ◽  
Heberto Ghezzo ◽  
Carole Trudeau ◽  
...  
Keyword(s):  
Objective Assessment ◽  
Intraclass Correlation ◽  
Correlation Coefficients ◽  
Acoustic Rhinometry ◽  
Nasal Patency ◽  
Cross Sectional ◽  
Occupational Rhinitis ◽  
Intraclass Correlation Coefficients ◽  
Objective Monitoring ◽  
Coefficients Of Variation

Background To diagnose occupational rhinitis, it is mandatory to conduct an objective assessment of changes in nasal patency during specific inhalation challenge (SIC). The reproducibility of acoustic rhinometry measurements in the setting of occupational challenges has never been examined. This study assessed the reproducibility of acoustic rhinometry during SIC investigation of occupational rhinitis. Methods Twenty-four subjects underwent acoustic rhinometry measurements during SIC investigation of occupational rhinitis. Subjects attended 3–6 days of SIC within a week by means of a realistic or closed-circuit apparatus methodology Results All of the within-day intraclass correlation coefficients (ICCs) for nasal volume (2–5 cm) and minimum cross-sectional area (MCA) based on a different number of measurements (2–7) were above 0.85; all of the coefficients of variation (CVs) for the same parameters were low (below 10%). The between-day CVs based on different numbers of SIC sessions ranged from 8.0 to 8.8% and from 6.8 to 8.8% for nasal volume and MCA, respectively. The between-day ICCs ranged from 0.80 to 0.88 and from 0.83 to 0.94 for nasal volume and MCA, respectively. Conclusion Acoustic rhinometry showed good within- and between-day reproducibility and can be recommended for the objective monitoring of nasal patency during SIC investigating occupational rhinitis.

Airflow and the Nasal Cycle: Nasal Patency Fluctuations after Laryngectomy

1995 ◽  
Vol 9 (3) ◽  
pp. 175-178 ◽  
Author(s):  
Edward W. Fisher ◽  
Ming Liu ◽  
Valerie J. Lund
Keyword(s):  
Mean Amplitude ◽  
Afferent Input ◽  
Acoustic Rhinometry ◽  
Nasal Airflow ◽  
Nasal Patency ◽  
Cross Sectional ◽  
Exact Test ◽  
Nasal Cycle ◽  
Postoperative Time ◽  
The Mean

A periodic fluctuation in nasal patency or “nasal cycle” is observed in the majority of adults but has not hitherto been demonstrated in individuals after diversion of nasal airflow. Acoustic rhinometry, a highly sensitive technique which does not require airflow, provided the opportunity to evaluate this situation in patients who had undergone laryngectomy. We examined 21 postoperative individuals (mean postoperative time 4 years) and 14 control subjects matched for age (including 2 patients prelaryngectomy). Acoustic rhinometry was performed serially over 3–8 hours to determine minimum cross-sectional area and nasal cavity volume as indices of nasal patency. Fluctuations in nasal patency were observed in all laryngectomees and controls. These were classified as classical (reciprocal alternating), in concert (parallel) or irregular. The distribution of the control and laryngectomy subjects between the cycle categories was not statistically significant (Fisher's exact test: P > 0.05). The mean periodicity of the cycle was similar in the two groups (controls: 180 minutes, laryngectomees: 176 minutes), but the mean amplitude was significantly less in the laryngectomy group (68 versus 96 cm3; P < 0.07 Mann-Whitney U test). The nasal cycle can continue after cessation of airflow, but it is diminished in amplitude. Therefore, afferent input from nasal airflow receptors may continue to play a role in modulating the cycle's periodicity and amplitude, but are not responsible for generating the underlying cycle phenomenon.

scholarly journals Handgrip Assessment: Reproducibility and Agreement between Two Positions

2020 ◽  
Author(s):  
Olga-Cecilia Vargas-Pinilla ◽  
Eliana-Isabel Rodríguez-Grande
Keyword(s):  
Supine Position ◽  
Elbow Flexion ◽  
Cross Sectional Study ◽  
Sitting Position ◽  
Average Difference ◽  
Cross Sectional ◽  
Hand Grip ◽  
Standardization Process ◽  
The One ◽  
Level Of Agreement

Abstract Background: The protocol established for taking Hand grip dynamometry measurements determines that the patient must be in a sitting position. this protocol cannot be applied due to the patient’s conditions in some cases, such as abdominal surgery, musculoskeletal spine or hip injuries. The purpuse was to determine the reproducibility and level of agreement between the Handgrip dynamometry in supine position with the elbow flexed or extended, and the one measured in the sitting position, for determining if these postures can be interchangeable depending on the patient’s condition. Methods: The design was a descriptive cross-sectional study. The population were apparently healthy students, who were young adults between 18 and 30 years of age. (N=201). Handgrip measurement was performed on both upper limbs in a sitting position with a flexed elbow, a supine position with elbow flexion, and a supine position with the elbow extended. Three handgrip measurements were taken for each upper limb in each posture. Results: Reproducibility was nearly perfect in all positions evaluated for both the upper right and left limbs (ICC 0.95-0.97). Regarding the level of agreement for the comparison between sitting and supine positions with a flexed elbow, an average difference of −0.406 was noted, and the upper and lower agreement limits were found to be 4.59 and −5.40, respectively. For supine position with an extended elbow and supine position with a flexed elbow, the average difference was −1.479, and the upper and lower agreement limits were 3.881 and −6.840, respectively. Conclusions: Taking into account the results achieved in this study, clinicians or researchers can choose any of the positions evaluated herein and obtain reliable results as long as the standardization process is followed. The criterion of choice could be the patient’s condition.

scholarly journals Does Cosmetic Rhinoplasty Affect Nose Function?

2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
Seyed Behzad Pousti ◽  
Sam Touisserkani ◽  
Maryam Jalessi ◽  
Seyed Kamran Kamrava ◽  
Nader Sadigh ◽  
...  
Keyword(s):  
Cross Sectional Area ◽  
Acoustic Rhinometry ◽  
Sectional Area ◽  
Nasal Patency ◽  
Cross Sectional ◽  
Double Osteotomy ◽  
Cosmetic Rhinoplasty ◽  
The Cross

Objective. To evaluate the changes in nasal dimensions of healthy Iranian volunteered for cosmetic rhinoplasty after surgery using acoustic rhinometry. Methods. Pre- and postoperative nasal dimension of 36 cases undergoing cosmetic rhinoplasty were compared using acoustic rhinometry (AR), and the measured variables were distance to first and second constriction (d1, d2), first and second minimal cross-sectional area (MCA1, 2), and volume. Results. Mean age (SD) of cases were 24.63 (4.4) years. Septoplasty was performed in 12 cases (33.3%). After surgery, bilateral d1 and both MCA2 decreased significantly, while significant increase was observed in MCA1 postoperatively using decongestant. Cases with septoplasty experienced more increase in MCA1 and less constriction in MCA2 postoperatively. In cases with rhinoplasty alone, they received benefit from double osteotomy in MCA1. In either group of rhinoplasty with and without septoplasty, placing a strut was beneficial for patients. Discussion. The cross-sectional area of the nose is a major factor in the determination of airflow. Cosmetic rhinoplasty may generate a mix effect on nose function. Performing osteotomy may better help patients to save nasal patency, septoplasty is beneficial even in mildly deviated septums, and placing a strut may be beneficial in most of the cases.

S101 – Mometasone Reduces Congestion in Acoustic Rhinometry Study

2008 ◽  
Vol 139 (2_suppl) ◽  
pp. P111-P111
Author(s):  
Anne Marie Frances Salapatek ◽  
Piyush Patel ◽  
Patel Deepen ◽  
Gokul Hiremagalur Gopalan ◽  
Santosh Thomas Varghese
Keyword(s):  
Nasal Congestion ◽  
Objective Measure ◽  
Acoustic Rhinometry ◽  
Controlled Study ◽  
Nasal Patency ◽  
Post Dose ◽  
Double Blind ◽  
Cross Sectional ◽  
Bothersome Symptom ◽  
Pollen Exposure

Objectives In a double-blind placebo-controlled study of ragweed-sensitive subjects with seasonal allergic rhinitis (SAR), mometasone furoate nasal spray (MFNS) was evaluated for improvement in nasal congestion, reportedly the most bothersome symptom of SAR. Methods On Day 1, 310 subjects were exposed to ragweed pollen in an environmental exposure chamber (EEC) for 2 hours pre-dose, given MFNS 200 mcg or placebo, and studied for 6 hours post-dose. Acoustic rhinometry (AcR) was used to measure congestion before and after exposure. Subjects (n=155) who received MFNS or placebo for 7 additional days returned to the EEC on Day 8 for 4 additional hours of pollen exposure at 24, 26, and 28 hours post-dose. Results On Day 1, after 2 hours of EEC exposure pre-dose, minimal cross-sectional areas (MCAs) of each nostril measured with AcR decreased significantly for all subjects. At 6 hours post-dose, MFNS significantly reduced congestion (increased nasal patency) vs. baseline (P equal to/less than 0.00001) and placebo (P equal to 0.005). On Day 8, MFNS significantly decreased congestion vs. placebo pre-EEC pollen exposure (P equal to 0.04) and at 2 and 4 hours (P equal to 0.01 and 0.0008, respectively). MFNS protected subjects against nasal congestion throughout EEC pollen exposure on Day 8, while congestion continued to increase in subjects receiving placebo. Conclusions A single treatment of MFNS demonstrated significantly reduced nasal congestion, as assessed by AcR, a sensitive, objective measure of nasal patency. MFNS effectively reduced allergen-induced nasal congestion, even at trough levels.

Measurement of nasal patency in anesthetized and conscious dogs

2002 ◽  
Vol 92 (2) ◽  
pp. 617-621 ◽  
Author(s):  
Michael C. Koss ◽  
Yongxin Yu ◽  
John A. Hey ◽  
Robbie L. McLeod
Keyword(s):  
Nasal Cavity ◽  
Nasal Congestion ◽  
Conscious State ◽  
Acoustic Rhinometry ◽  
Cavity Volume ◽  
Nasal Patency ◽  
Cross Sectional ◽  
Chronic Model ◽  
Thiopental Sodium ◽  
Conscious Animals

Experiments were undertaken to characterize a noninvasive chronic, model of nasal congestion in which nasal patency is measured using acoustic rhinometry. Compound 48/80 was administered intranasally to elicit nasal congestion in five beagle dogs either by syringe (0.5 ml) in thiopental sodium-anesthetized animals or as a mist (0.25 ml) in the same animals in the conscious state. Effects of mast cell degranulation on nasal cavity volume as well as on minimal cross-sectional area ( A min) and intranasal distance to A min ( D min) were studied. Compound 48/80 caused a dose-related decrease in nasal cavity volume and A min together with a variable increase in D min. Maximal responses were seen at 90–120 min. Compound 48/80 was less effective in producing nasal congestion in conscious animals, which also had significantly larger basal nasal cavity volumes. These results demonstrate the utility of using acoustic rhinometry to measure parameters of nasal patency in dogs and suggest that this model may prove useful in studies of the actions of decongestant drugs.

Patient positioning and common approaches

2010 ◽  
pp. 194-206
Author(s):  
George Samandouras
Keyword(s):  
Prone Position ◽  
Supine Position ◽  
Patient Positioning ◽  
Sitting Position ◽  
Basic Concepts

Chapter 4.4 covers basic concepts of patient positioning, the supine position, the park-bench (lateral oblique or three quarter prone) position, the prone position, and the sitting position.

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