Delirium Care by Intensive Care Unit Nurses: Focus Group Studies in a Medical Center of Southern Taiwan.

OBJECTIVES: Studies have identified many nursing interventions that can prevent delirium and fall accidents in clinical patients, detect and treat delirium early to prevent functional decline in the patient, shorten hospitalization duration, and lower the death rate. This study aimed to explore delirium care by intensive care unit (ICU) nurses in a medical center of southern Taiwan. METHODS: This study conducted 3 semistructured focus group interviews, each for a single medical ICU, involving groups of 6 to 8 nurses each. The nurses were recruited through purposive sampling. This research was approved by an institutional review board in the medical center of southern Taiwan from March 31, 2020, to January 30, 2021. The co-principal investigator described the purpose and process of this study to the participants before they provided their written informed consents. The interviews were conducted in the meeting room and were audiotape recorded. The recordings were transcribed and subject to content analysis to identify the themes of delirium care. RESULTS: For nursing interventions of delirium, satisfying the patient's physical needs: comfort care, massages, and early rehabilitation; and psychological care: being presence, communication, and ensuring familial support were included. In terms of environmental interventions for delirium, providing reorientation, music, light, belongings with sentimental value, and audiovisual equipment were included. However, according to the recruited medical ICU nurses, these nonpharmacological interventions, although effective, do not have long-lasting effects. Finally, nurses reported themselves as having been attacked by patients with delirium. Thus, they all agreed that restraining patients with delirium may be necessary, but restraining is a double-edged sword for ICU delirium patients. CONCLUSIONS: Research team suggests for future studies to extend their evidence-based findings of physical, psychological, and environmental care for ICU delirium patients toward integrating the efforts of various health care professionals.

["Arrhythmia Reading": A Diverse Teaching Approach to Improve the Ability of 2 Year NPGY Nurses to Interpret and Manage Arrhythmias].

BACKGROUND: The author of this paper works in the critical care ward of an internal medicine department. During the study period, current trainees in a nurse post graduate year (NPGY) program joined our nurse team. While at our ward, they were required to demonstrate clinical nursing competencies in intensive care units in the facets of nursing knowledge, equipment use, prediction of emergencies, emergency response, and patient evaluation and management. The ability to interpret arrhythmias is critical to connecting and coordinating these competencies. However, arrhythmia interpretation is usually the most difficult skill for nurses to master. PURPOSE: This study was developed to improve the knowledge of NPGY trainees regarding arrhythmia interpretation, the accuracy of their arrhythmia interpretation and management, and their confidence in caring for patients with arrhythmia. RESOLUTION: The period of this study spanned from April 5th to June 18th, 2018. After surveying the current capabilities of the NPGY trainees to provide a reference for improvement, several teaching strategies were adopted. These strategies included: (1) provision of arrhythmia clinical scenarios; (2) establishment of multimedia teaching and interactive e-books; (3) development of memory strategies; and (4) mind mapping. RESULTS: The accuracy of the trainees' knowledge regarding arrhythmia interpretation increased from 52.5% pretest to 92.5% posttest, while their arrhythmia interpretation skill improved from 56.3% pretest to 92.5% posttest. Furthermore, their caring-for-patients-with-arrhythmia confidence score increased from 5.5 to 9.1. All of the objectives of this study were achieved. CONCLUSIONS: The diverse teaching approach employed in this study enhanced the ability of trainees to remember and recall relevant theories as well as improved their related practical skills. Furthermore, posttest, the trainees were significantly less nervous during encounters with patients with arrhythmia and demonstrated improved problem-solving abilities. Participation in this intervention significantly improved the confidence of trainees to serve as critical care nurses and to pursue a career in critical care nursing.

[Project to enhance accuracy of nursing assessments performed by medical and surgical ICU nursing staffs].

BACKGROUND: Some nurses do not have the skills necessary to evaluate general ICU patient condition and the meaning of laboratory data adequately. This can influence nursing care quality and patient safety. Between October 16th and 29th, 2009, this project employed a checklist to evaluate nursing assessment accuracy in medical and surgical ICUs. The unexpectedly low accuracy rate of two-thirds (63.4 percent) was caused by factors including poor nursing assessment cognizance, lack of experience performing nursing assessments, nursing assessment skills taught only to experienced nursing staff, and a lack of nursing assessment guidelines. PURPOSE: This project was designed to improve nursing assessment cognizance and accuracy among nursing staff. RESOLUTION: The authors: 1. Established formal nursing assessment guidelines; 2. made a CD-ROM to introduce nursing assessment basics; and 3. employed lectures and simulation exercises to teach nursing assessment skills. RESULTS: Nursing assessment accuracy improved significantly to 85.8 percent and actual nursing assessment cognizance scores ranged between 68.7 and 83.1. CONCLUSIONS: This project effectively improved nursing assessment accuracy and may be considered and referenced by relevant medical organizations.

Usefulness of the ratio of transmitral E wave velocity to isovolumic relaxation flow propagation velocity for predicting left ventricular end-diastolic pressure.

Transmitral E wave velocity was reported to be positively related to left ventricular (LV) filling pressure and negatively related to LV relaxation constant, and isovolumic relaxation flow propagation velocity (IRFPV) was proven recently to be negatively related to LV relaxation constant and independent of preload alterations. Therefore, the combination index, E/IRFPV, may eliminate the influence of LV relaxation and bring the LV filling pressure into focus. However, it is unknown whether E/IRFPV is a useful index in prediction of LV filling pressure. The aim of this study is to evaluate the correlation between E/IRFPV and LV end-diastolic pressure (LVEDP). Forty-three patients with suspected coronary artery disease who underwent a Doppler echocardiographic study and cardiac catheterization were included. LVEDP was determined by a micromanometer-tipped catheter. In a univariate analysis, LVEDP had a positive correlation with left atrial dimension, LV end-diastolic dimension, LV end-systolic dimension, the ratio of E to E wave propagation velocity (EPV) (r = 0.408, p = 0.007), the ratio of E to early diastolic mitral annular velocity (Ea) (r = 0.439, p = 0.003) and E/IRFPV (r = 0.686, p < 0.001). It had a negative correlation with diastolic blood pressure, E wave deceleration time, LV ejection fraction, EPV, Ea and IRFPV. After stepwise multiple linear regression analysis, only the E/IRFPV was the independent predictor of LVEDP (beta = 0.667, p < 0.001). In conclusion, E/IRFPV is a useful parameter in prediction of LVEDP.

Positive interference from contrast media in cardiac troponin I immunoassays.

Cardiac troponin I (cTnI) has been found to be a sensitive and reliable marker of myocardial damage, and elevated levels of cTnI can indicate high risk for acute coronary syndrome. To determine how to intervene in possible cases of acute coronary syndrome, cTnI levels must be measured by immunoassay. However, cTnI immunoassay results are prone to interference from many substances such as heparin and common drugs. The contrast media used in the coronary angiography might also interfere with results. To explore this possibility, we performed two in vivo and two in vitro studies. In the first in vivo study, we evaluated the effects of contrast media on cTnI immunoassays by collecting blood samples from 45 patients undergoing coronary angiography before and after the procedure. We used the Opus Magnum immunoassay system to measure cTnI levels. In the second in vivo study, we collected 25 blood samples from another group of patients also undergoing angiography at various times before and after the procedure to determine cTnI values by both the Opus Magnum and ACCESS systems. In the first in vitro study, 12 different contrast media were treated as samples to disclose the potential interference of measurement in the two assay systems. In the second in vitro study, we made sequential dilutions of iopromide (Ultravist; Schering) with serum to explore their potential for interfering with the detection of cTnI by the Opus Magnum and ACCESS assays. In the first in vivo study using the Opus Magnum assay, cTnI concentrations in samples taken after angiography were significantly higher at 5 minutes than at 30 minutes, and, at 60 minutes, all cTnI concentrations had dropped below the cutoff point. In the second in vivo study, we found a substantial difference in detection of cTnI by the Opus Magnum and ACCESS assays. All cTnI concentrations checked by ACCESS assay were below the cutoff value. In our first in vitro study, the Opus Magnum assay gave false positive results for all 12 contrast media; the ACCESS assay gave a positive result for only one contrast medium, poppy-seed oil (Lipiodol; Guebert). In our second in vitro study, we found that, in the Opus Magnum assay, the more concentrated the contrast medium, the higher the cTnI value, but not in the ACCESS assay. We conclude that contrast media may cause false-positive results in cTnI assays and that, when contrast media are being used for angiography, cTnI results, especially those based on samples taken within the first hour of the procedure, should be interpreted carefully.