Predictors of general discomfort, limitations in activities of daily living and intention of a second donation in unrelated hematopoietic stem cell donation

We performed a retrospective study of 1868 consecutive unrelated donors to predict the risk factors related to general discomfort, limitations in activities of daily living (ADLs) and intention of a second donation in hematopoietic stem cell (HSC) donation. General discomfort and limitations in ADLs were assessed by numerical measurement (scores of 0-10) and donor's intention of a second donation by yes or no reply. The post-donation questionnaires were completed within 48 h after HSC collection and at 1 week, 4 weeks, and 4 months thereafter. Predictors of general discomfort included female sex (P<0.0001), bone marrow (BM) collection (P<0.0001) or PBSC collection through a central line (CL; P=0.0349), 2-day collection (P=0.0150) and negative or undetermined intention of a second donation on day 1 (P<0.0001). Predictors of limitations in ADLs included age group of 30-39 years (P=0.0046), female sex (P<0.0001), BM collection (P<0.0001) or PBSC collection through a CL (P<0.0001) and negative or undetermined intention of a second donation on day 1 (P<0.0001). The only predictor of positive intention of a second donation was male sex (P=0.0007). Age, sex and collection method and period should be considered risk factors when unrelated HSC donation is performed.

Comparison between the LMA Classic™ and New I-gel™ Supraglottic Airway Device: A Manikin Study

Objective

It is nowadays well established that the laryngeal mask airway (LMA) is an alternative airway to endotracheal intubation for prehospital environment. However, problems have been reported and many other kinds of supraglottic airway devices (SGDs) were introduced. The I-gel™ is one of the latest SGD, and it has been designed for easy and fast insertion with non-inflatable cuff. We compared the efficacy between LMA Classic™ and I-gel™ by using both normal and difficult airway conditioned manikin.

Methods

One hundred and two non-experienced volunteers made out of students and nurses participated in the airway management educational program that was held in the emergency medical center of Gwangmyeong Sungae Hospital. After finishing the program, the participants were tested on their performance skills (insertion time) on using the two devices in both normal and difficult airway conditioned manikin. A structured questionnaire was used to measure the knowledge, attitude and preference about each device on a 5-point scale.

Results

In the LMA Classic™ and I-gel™ groups, it took 28.3±8.3 and 10.0±3.7 seconds with normal airway conditioned manikin (p<0.001), and 29.1±8.2 and 10.3±3.0 seconds elapsed with difficult airway conditioned manikin to achieve adequate airway management (p<0.001) in the corresponding order. The attitude and preference scale of the I-gel™ was higher than those of the LMA Classic™ (p<0.001).

Conclusions

The insertion time of the I-gel™ was shorter than that of the LMA Classic™ in both normal and difficult airway conditioned manikin, and I-gel™ had a higher positive response for attitude and preference.