Cuff compliance of pediatric and adult cuffed tracheal tubes: an experimental study
| Autor: | B. Plaud, F. Schauvliège, G. Taylor, J.‐M. Devys |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Models
Anatomic medicine.medical_specialty business.industry medicine.medical_treatment Tracheal intubation Reproducibility of Results Intracuff pressure Tracheal tube Surgery Compliance (physiology) Anesthesiology and Pain Medicine Volume (thermodynamics) Anesthesia Pediatrics Perinatology and Child Health Cuff Intubation Intratracheal Pressure medicine Intubation Equipment Failure Tube (fluid conveyance) business |
| Zdroj: | Pediatric Anesthesia. 14:676-680 |
| ISSN: | 1460-9592 1155-5645 |
| DOI: | 10.1111/j.1460-9592.2004.01288.x |
| Popis: | Summary Background : Tracheal mucosal damage related to tracheal intubation has been widely described in pediatric and adult patients. High volume–low pressure cuffs (HVLPC) are being advertised as safe to avoid this particularly unpleasant complication. Compliances of these supposed pediatric and adult HVLPC are not mentioned by manufacturers and still remain unknown. Methods : The compliance of HVLPC was measured in vitro and defined as the straight portion of the pressure–volume curve. Cuff pressure was measured after incremental 0.1 ml filling volumes of air for sizes 3.0–8.0 of internal diameter of RuschTM and MallinckrodtTM tracheal tubes. Compliances were assessed in air and in a rigid tube. The filling volume to achieve a 25-mmHg intracuff pressure was also measured. Results : In air, each 0.1 ml step almost linearly increased cuff pressure by 1 mmHg (size 8.0) to 9 mmHg (size 3). In air, the volume needed to maintain a cuff pressure < 25 mmHg was small for sizes 3–5.5 (0.35–2 ml). The 25 mmHg inflated cuff volume and compliance were decreased within a rigid tube, especially for adult sizes. In a rigid tube simulating a trachea, the compliances of almost every RuschTM tracheal tube were statistically higher than those of the MallinckrodtTM. Conclusion : We conclude that the tested tracheal tube cuffs have low compliance and cannot be defined as high volume–low pressure. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|