scholarly journals Efficacy of Amflow®, a Real-Time-Portable Feedback Device for Delivering Appropriate Ventilation in Critically Ill Patients: A Randomised, Controlled, Cross-Over Simulation Study

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Jong Won Kim ◽  
Sang O Park ◽  
Kyeong Ryong Lee ◽  
Dae Young Hong ◽  
Kwang Je Baek

Objective. The aim of this study was to test whether Amflow® (a newly designed portable ventilation feedback device) can assist rescuers in delivering target tidal volume (VT) and respiration rate (RR) during self-inflating bag (SB) ventilations in various clinical scenarios. Method. This was a simulation study with a prospective cross-over design. A total of 40 trained participants who underwent training for SB ventilation were recruited. Using a SB with or without Amflow® alternately, participants delivered ventilations to test lungs connected to a gas flow analyser in each of three different scenarios: acute respiratory distress syndrome (ARDS; 315–385 ml ranges for 350 ml target VT, with 20 breaths/min); cardiopulmonary resuscitation (CPR; 450–550 ml ranges for 500 ml target VT with 10 breaths/min); and adult head trauma (630–770 ml ranges for 700 ml target VT with 15 breaths/min). Results. The feedback group (SB with Amflow®) demonstrated a significantly higher percentage of delivering the appropriate VT ranges than the no-feedback group for both ARDS (58.6% versus 23.5%, respectively) and CPR (85.4% versus 41.0%, respectively) (all p<0.05). However, there was no significant difference between the two groups in the percentage of delivering the appropriate VT ranges in head trauma patients (65.9% versus 68.3%, respectively; p=0.092). In all three scenarios, a higher percentage of target RR delivered was achieved in the feedback group (88.3%, 99.2%, and 96.3%, respectively) compared with the no-feedback group (5.8%, 12.5%, and 10.0%, respectively) (all p<0.05). Conclusion. The Amflow® device could be useful for rescuers in delivering SB ventilation with appropriate VT and RR simultaneously in various critical situations, except for clinical cases that demand greater delivered VT.

1986 ◽  
Vol 14 (4) ◽  
pp. 390-399 ◽  
Author(s):  
D. V. Tuxen ◽  
J. F. Cade

The possible beneficial effect of aprotinin, a broad protease inhibitor, on the incidence and outcome of ARDS was examined in two complementary studies. In the first study, the effect of aprotinin was assessed in 147 patients admitted with multiple trauma or shock. In the 57 patients who developed ARDS, mortality was significantly less in those who had previously received aprotinin (8/20, 40%) than in those who had not (26/37, 70%). Although both treatment groups were well matched, this was a retrospective study and a second prospective, randomised, controlled study was therefore carried out. In 78 patients at risk of ARDS, there was no significant difference between treated and control patients in the incidence, duration or severity of ARDS, or in mortality or other major complications. It is concluded that aprotinin is not effective in improving any aspect of ARDS or its outcome in seriously ill patients.


1990 ◽  
Vol 104 (3) ◽  
pp. 191-194 ◽  
Author(s):  
Ludwig Podoshin ◽  
Yaacov Ben-David ◽  
Milo Fradis ◽  
Hillel Pratt ◽  
B. Sharf ◽  
...  

AbstractFifteen Minor Head Trauma patients were investigated by Brainstem Auditory Evoked Potentials at 10/s and 55/s stimulus rate. The results were compared with those of the same patients at a second examination, two months later, as well as with a matched normal control group. Increasing the stimulus rate in MHT patients caused a significant but reversible delay in the central conduction time. No significant difference was found regarding the interpeak latency differences at a 10/s stimulus rate. The present study suggests that the primary lesion in MHT is ischaemic, affecting synaptic efficiency, and not axonal damage. These findings may be informative on the as yet obscure pathophysiological mechanism of minor head trauma.


Cephalalgia ◽  
1990 ◽  
Vol 10 (6) ◽  
pp. 285-293 ◽  
Author(s):  
Ole Kudsk Jensen ◽  
Frank Farsø Nielsen

Pre- and post-traumatic headache of 168 individuals aged 18–60 years was registered 9–12 months after a head trauma. Headache before the trauma was reported by 39.9%, women being in the majority. After the trauma 64.3% were suffering from headache. Post-traumatic headache was reported by 64 patients (38.1%), of whom 22 patients experienced an increase of already existing headache and 42 patients complained of new headache. Patients suffering from headache before the trauma were not more at risk of having post-traumatic headache than patients who did not suffer from headache before the trauma. Patients who experienced an increase of already-existing pre-traumatic headache used more analgesics than patients first suffering from headache after the trauma. Post-traumatic headache was reported by more women than men ( p < 0.02), the corresponding relative risk being 1.6. Both the use of analgesics and the frequency of headache showed a significant increase for patients with post-traumatic headache when compared with a “control group” of 41 patients with unchanged headache and when compared with all patients with headache before the trauma. There was no significant difference in the location of pain between the groups analysed.


2015 ◽  
Vol 46 (S 01) ◽  
Author(s):  
V. Schriever ◽  
T. Hummel ◽  
K. Grosser ◽  
M. Smitka

2020 ◽  
Author(s):  
Sandeep Chakraborty

Weissella strains are currently being used for biotechnological and probiotic purposes [1]. While, Weissella hellenica found in flounder intestine had probiotic effects [2], certain species from this genus are opportunistic pathogens in humans. Apart from being implicated in disease in farmed rainbow trout [3], Weissella has been found to cause the following disease in humans.1. endocarditis [4,5]2. bacteraemia [6]3. prosthetic joint infection [7]Whole genome sequences ‘find several virulence determinants such as collagen adhesins, aggregation sub- stances, mucus-binding proteins, and hemolysins in some species’, as well as antibiotic resistance-encoding genes [8]. Caution is warranted in selecting of Weissella strains as starter cultures or probiotics, if at all, since the other option, Lactobacillus, are rarely involved in human disease.Here, the analysis of the lung microbiota in critically ill trauma patients suffering from acute respiratory distress syndrome [9] shows (Accid:ERR1992912) shows complete colonization of Weissella (Fig 1). While, the study mentions ‘significant enrichment of potential pathogens including Streptococcus, Fusobacterium, Prevotella, Haemophilus and Treponema’, there is no reference to the Weissella genus. The percentages of Weissella strains are :confusa=81, soli=7 ,hellenica=5 ,diestrammenae=2. I believe this is the first reported case of Weissella causing ARDS in humans.


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