Impact of Unilateral Sinus Surgery With Resection of the Turbinates by Means of Midfacial Degloving on Nasal Air Conditioning

Lindemann, Jörg; Liu, Richard; Sikora, Thomas; Rettinger, Gerhard; Keck, Tilman

doi:10.1097/00005537-200211000-00029

Cited by 52 publications

(86 citation statements)

References 12 publications

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“…Measurements of nasal conditioning were performed as described previously [20][21][22]: The temperature probe used had an outer diameter of 0.34 mm (thermocouple type K, thermoelectric wire consisting of Chromel® and Alumel® Thermocoax, Suresnes, France; technical temperature range, −200°C to +800°C). The actual response time in nonmoving air is 0.4 s, in high-velocity air 0.1 s. The thermocouple was attached to the suction probe for humidity detection.…”

Section: Temperature Recording Equipmentmentioning

confidence: 99%

Effects of nasal mask leak and heated humidification on nasal mucosa in the therapy with nasal continuous positive airway pressure (nCPAP)

et al. 2008

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The purpose of this study was to determine the objective short-term influence of nasal continuous positive airway pressure (nCPAP) therapy, nasal mask leak (NML) and heated humidifiers (HH) to nasal conditioning of spontaneously breathing subjects. This was a prospective, non-randomized, non-blinded day-time study. Eighteen healthy subjects were enrolled in the study. All subjects received nCPAP therapy for 60 min in three different conditions successively: (1) nCPAP without humidification, (2) nCPAP with a defined leakage of nasal mask (slashed circle 28.3 mm2) and (3) nCPAP with HH. Nasal humidity and temperature were measured in the anterior turbinate area using a miniaturized thermocouple and a relative humidity sensor. The measurements were accomplished at the beginning of therapy, after 60, 120 and 180 min. Absolute humidity (aH) in the anterior turbinate area decreased significantly (p = 0.0075) from 17.41 +/- 3.81 mg/l (baseline) to 15.27 +/- 2.21 mg/l (nCPAP alone). With attachment of a NML, aH decreased from 15.27 mg/l not significantly (p = 0.058) to 13.77 +/- 2.28 mg/l (nCPAP and NML) compared to nCPAP alone. After addition of heated humidification to nCPAP, aH increased again from 13.77 mg/l significantly (p = 0.042) to 15.29 +/- 3.51 mg/l (nCPAP and HH) compared to aH (nCPAP+NML). No difference was found between aH (nCPAP and HH) and aH (nCPAP alone). Airway temperature did not change significantly after application of nCPAP alone, nCPAP and NML, and nCPAP and HH. These data indicate that nCPAP therapy with NML tends to have more remarkable reduction of the nasal humidity than nCPAP therapy without NML. nCPAP with heated humidifier is able to compensate the dehydration effects induced by nCPAP therapy with NML by increasing the aH at the anterior turbinate area to the levels observed during breathing with nCPAP alone.

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Section: Temperature Recording Equipmentmentioning

confidence: 99%

Effects of nasal mask leak and heated humidification on nasal mucosa in the therapy with nasal continuous positive airway pressure (nCPAP)

et al. 2008

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“…Most of the applied techniques in turbinate surgery, especially partial or total resections, lead to a deterioration in nasal air conditioning [8][9][10].…”

Section: Discussionmentioning

confidence: 99%

“…Excessive resection of the inferior turbinate leads to a significant reduction in heating and humidification of inhaled air [8][9][10]. Nasal air conditioning is more influenced by medial than inferior resection of the turbinate.…”

Section: Introductionmentioning

confidence: 99%

Effects of nasal wall lateralization and pyriform turbinoplasty on nasal air conditioning

Sommer¹,

Simmen²,

Briner³

et al. 2016

Otorhinolaryngol Head Neck Sur

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Background: The inferior turbinate, as part of the nasal valve area, plays a key role in directing the airflow and moisturizing and heating the inspired air. Excessive resection of the inferior turbinate leads to a significant reduction in heating and humidification of inhaled air. Different types of turbinate surgery are described in the current literature. Pyriform Turbinoplasty is a new endoscopically performed procedure which includes a submucosal reduction of the bone of the frontal process of the maxilla and the lacrimal bone yet it preserves the mucosal surface. This new surgical technique is able to improve nasal airflow without hampering nasal climatization.

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“…Verglichen mit Normalpersonen wiesen die operierten Nasen eine signifi kant erniedrigte Temperatur und Feuchte auf [49] . Beim Vergleich von nicht operierten Nasenseiten und Nasenwegen nach radikaler Nasennebenh ö hlenoperation mit Resektion der lateralen Nasenwand und den Nasenmuscheln wegen eines invertierten Papilloms zeigte sich eine signifi kant erniedrigte Erw ä rmung und Befeuchtung in den operierten Nasenwegen [143] .…”

Section: Radikale Nasennebenh ö Hlenchirurgieunclassified

Strömungssimulation und Klimatisierung in der Nase

Keck¹,

Lindemann²

2010

Laryngo-Rhino-Otol

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Heating and humidification of the respiratory air are the main functions of the nasal airways in addition to cleansing and olfaction. Optimal nasal air conditioning is mandatory for an ideal pulmonary gas exchange in order to avoid dessication and adhesion of the alveolar capillary bed. The complex three-dimensional anatomical structure of the nose makes it impossible to perform detailed in vivo studies on intranasal heating and humidification within the entire nasal airways applying various technical set-ups. The main problem of in vivo temperature and humidity measurements is a poor spatial and time resolution. Therefore, in vivo measurements are feasible to a restricted extent, only providing single temperature values as the complete nose is not entirely accessible. Therefore, data on the overall performance of the nose are only based on one single measurement within each nasal segment. In vivo measurements within the entire nose are not feasible. These serious technical issues concerning in vivo measurements led to a large number of numerical simulation projects in the last few years providing novel information about the complex functions of the nasal airways. In general, numerical simulations only calculate predictions in a computational model, e. g. realistic nose model, depending on the setting of the boundary conditions. Therefore, numerical simulations achieve only approximations of a possible real situation. The aim of this report is the synopsis of the technical expertise on the field of in vivo nasal air conditioning, the novel information of numerical simulations and the current state of knowledge on the influence of nasal and sinus surgery on nasal air conditioning.

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Impact of Unilateral Sinus Surgery With Resection of the Turbinates by Means of Midfacial Degloving on Nasal Air Conditioning

Cited by 52 publications

References 12 publications

Effects of nasal mask leak and heated humidification on nasal mucosa in the therapy with nasal continuous positive airway pressure (nCPAP)

Effects of nasal mask leak and heated humidification on nasal mucosa in the therapy with nasal continuous positive airway pressure (nCPAP)

Effects of nasal wall lateralization and pyriform turbinoplasty on nasal air conditioning

Strömungssimulation und Klimatisierung in der Nase

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