ABSTRACT
Nasotracheal intubation is an essential component of anesthetic management for intraoral and mandibular surgeries. Direct nasotracheal intubation can occasionally be difficult and require an initial oral endotracheal tube (ETT) placement with subsequent conversion to a nasal ETT. Numerous techniques have been described. However, execution can be challenging and limited by available resources. This report re-examines conventional oral to nasal ETT conversion techniques and describes another innovative approach utilizing equipment more readily available in the operating room or as an option when difficulty is encountered with conventional conversion techniques.
Subject(s)
Intubation, Intratracheal , Orthognathic Surgical Procedures , Humans , Operating RoomsABSTRACT
Single lung ventilation (SLV) with the double lumen tube (DLT) has been an effective process for providing surgical exposure in the thoracic cavity and has been applied effectively in the operating room. SLV also aids in protecting a healthy lung from the ill effects of fluid from an unhealthy lung, which may be blood, lavage fluid, or malignant or purulent secretions. Ensure correct placement, which is required and confirmed by a fiberoptic bronchoscope (FOB). The use of the DLT has been proven to be effective, but it has its challenges and drawbacks. This article proposes an alternative technique to the DLT in SLV without the use of a FOB. We have implemented this technique in 14 cases, however, we would like to discuss two challenging cases that have highlighted the advantages of this new technique.
ABSTRACT
Dried blood spots (DBS) typically prepared on filter papers are an ideal sample type for malaria surveillance by offering easy and cost-effective methods in terms of sample collection, storage, and transport. The objective of this study was to evaluate the applicability of DBS with a commercial multiplex malaria assay, developed to concurrently measure Plasmodium antigens, histidine-rich protein 2 (HRP2), Plasmodium lactate dehydrogenase (pLDH), and a host inflammatory biomarker, C-reactive protein (CRP), in whole blood. The assay conditions were optimized for DBS, and thermal stability for measurement of Plasmodium antigens and CRP in dried blood were determined. Performance of the multiplex assay on matched DBS and whole blood pellet samples was also evaluated using the clinical samples. The results indicate the acceptable performance in multiplex antigen detection using DBS samples. At cutoff levels for DBS, with a diagnostic specificity with a lower 95% confidence bound > 92%, diagnostic sensitivities against polymerase chain reaction (PCR)-confirmed malaria for HRP2, Pf LDH, Pv LDH, and Pan LDH were 93.5%, 80.4%, 21.3%, and 55.6%, respectively. The half-life of pLDH was significantly less than that of HRP2 in thermal stability studies. Results with DBS samples collected from Peru indicate that the uncontrolled storage conditions of DBS can result in inaccurate reporting for infection with P. falciparum parasites with hrp2/3 deletions. With careful consideration that minimizing the unfavorable DBS storage environment is essential for ensuring integrity of heat-labile Plasmodium antigens, DBS samples can be used as an alternative to liquid whole blood to detect P. falciparum with hrp2/3 deletions in malaria surveillance. SUPPLEMENTARY INFORMATION: The online version of this article (10.1007/s12639-020-01325-2) contains supplementary material, which is available to authorized users.