Sharing breathlessness: Investigating respiratory change during observation of breath-holding in another

2012 ◽  
Vol 180 (2-3) ◽  
pp. 218-222 ◽  
Author(s):  
Takeshi Kuroda ◽  
Yuri Masaoka ◽  
Hideyo Kasai ◽  
Kengo Noguchi ◽  
Mitsuru Kawamura ◽  
...  
Keyword(s):  
Breath Holding ◽  
Respiratory Change

Head Banging, Breath Holding Typically Go Away

2007 ◽  
Vol 41 (7) ◽  
pp. 33
Author(s):  
PATRICE WENDLING
Keyword(s):  
Breath Holding

Reactividad cerebrovascular mediante el índice breath holding (Apnea voluntaria): fiabilidad de la repetición precoz

2000 ◽  
Vol 30 (07) ◽  
pp. 640
Author(s):  
Antonio Arjona Padillo ◽  
Rafael Espino ◽  
Luís Angel Perula de Torres
Keyword(s):  
Breath Holding

Three-dimensional black blood MR angiography of the liver during breath holding

1994 ◽  
Vol 35 (2) ◽  
pp. 131-134 ◽  
Author(s):  
Yuji Suto ◽  
Y. Ohuchi ◽  
T. Kimura ◽  
T. Shirakawa ◽  
N. Mizuuchi ◽  
...  
Keyword(s):  
Mr Angiography ◽  
Three Dimensional ◽  
Breath Holding ◽  
Black Blood

scholarly journals Perioperative anaphylaxis: A five-year review in a tertiary paediatric hospital

2021 ◽  
Vol 49 (1) ◽  
pp. 44-51
Author(s):  
Theresa SW Toh ◽  
Sze Y Foo ◽  
Wenyin Loh ◽  
Kok W Chong ◽  
Anne EN Goh ◽  
...  
Keyword(s):  
New Zealand ◽  
Skin Tests ◽  
Hospital Data ◽  
Paediatric Hospital ◽  
Male Predominance ◽  
Severity Grade ◽  
Culprit Drug ◽  
Respiratory Change ◽  
Ige Mediated ◽  
Grade 3

Making a diagnosis of perioperative anaphylaxis and identifying culprit drugs are diagnostic challenges. The aim of this study is to describe the perioperative presentation of anaphylaxis and results of patients who underwent allergy evaluation. This is a retrospective review of perioperative anaphylaxis of severity Grade 2 and above based on the Australian and New Zealand Anaesthetic Allergy Group criteria from 2015 to 2019 in a tertiary paediatric hospital. Data collected were demographics, clinical features, investigations and management. Of the 35,361 cases of paediatric anaesthesia, there were 15 cases of perioperative anaphylaxis, giving an incidence of four in 10,000. The median age was seven years (interquartile range four–15 years) with a male predominance of 86.7% (13/15). The severity of anaphylaxis was Grade 2 in 33.3% (5/15) and Grade 3 in 66.7% (10/15). The commonest presenting feature was hypotension (13/15, 86.7%) while the earliest symptom was respiratory change (9/15, 60.0%). Dynamic tryptase was raised in 75% (6/8) of the patients with adequate tryptase samples. Eight patients (53.3%) completed allergy testing, of whom five patients (62.5%) had IgE-mediated anaphylaxis with skin test positive to cefazolin ( n = 3), atracurium ( n = 1) and rocuronium ( n = 1). Three patients (25.0%) had non–IgE-mediated reactions with negative skin tests. Although only half the patients completed allergy evaluation, a culprit drug could be identified in 62.5%, with antibiotics being the commonest. This emphasises the need for appropriate evaluation in cases of suspected perioperative anaphylaxis.

scholarly journals Low ventilatory responsiveness to transient hypoxia or breath-holding predicts fast marathon performance in healthy middle-aged and older men

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Bartłomiej Paleczny ◽  
Rafał Seredyński ◽  
Małgorzata Wyciszkiewicz ◽  
Adrianna Nowicka-Czudak ◽  
Wojciech Łopusiewicz ◽  
...  
Keyword(s):  
Plasma Renin ◽  
Older Men ◽  
Individual Performance ◽  
Breath Holding ◽  
Vasomotor Tone ◽  
Younger Men ◽  
The Individual ◽  
Peripheral Chemoreflex ◽  
Sympathetic Vasomotor Tone ◽  
Marathon Performance

AbstractThe aim of this study was to test the utility of haemodynamic and autonomic variables (e.g. peripheral chemoreflex sensitivity [PCheS], blood pressure variability [BPV]) for the prediction of individual performance (marathon time and VO2max) in older men. The post-competition vasodilation and sympathetic vasomotor tone predict the marathon performance in younger men, but their prognostic relevance in older men remains unknown. The peripheral chemoreflex restrains exercise-induced vasodilation via sympathetically-mediated mechanism, what makes it a plausible candidate for the individual performance marker. 23 men aged ≥ 50 year competing in the Wroclaw Marathon underwent an evaluation of: resting haemodynamic parameters, PCheS with two methods: transient hypoxia and breath-holding test (BHT), cardiac barosensitivity, heart rate variability (HRV) and BPV, plasma renin and aldosterone, VO2max in a cardiopulmonary exercise test (CPET). All tests were conducted twice: before and after the race, except for transient hypoxia and CPET which were performed once, before the race. Fast marathon performance and high VO2max were correlated with: low ventilatory responsiveness to hypoxia (r =  − 0.53, r = 0.67, respectively) and pre-race BHT (r =  − 0.47, r = 0.51, respectively), (1) greater SD of beat-to-beat SBP (all p < 0.05). Fast performance was related with an enhanced pre-race vascular response to BHT (r =  − 0.59, p = 0.005). The variables found by other studies to predict the marathon performance in younger men: post-competition vasodilation, sympathetic vasomotor tone (LF-BPV) and HRV were not associated with the individual performance in our population. The results suggest that PCheS (ventilatory response) predicts individual performance (marathon time and VO2max) in men aged ≥ 50 yeat. Although cause-effect relationship including the role of peripheral chemoreceptors in restraining the post-competition vasodilation via the sympathetic vasoconstrictor outflow may be hypothesized to underline these findings, the lack of correlation between individual performance and both, the post-competition vasodilation and the sympathetic vasomotor tone argues against such explanation. Vascular responsiveness to breath-holding appears to be of certain value for predicting individual performance in this population, however.

Stability and performance of the EnSite Precision cardiac mapping system for electrophysiology mapping and ablation procedures: results from the EnSite Precision observational study

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
D Lin ◽  
B Glover ◽  
J Colley ◽  
B Thibault ◽  
C.M Steinberg ◽  
...  
Keyword(s):  
Observational Study ◽  
Real World ◽  
Cardiac Electrophysiology ◽  
Median Number ◽  
System Stability ◽  
Cardiac Mapping ◽  
Average Force ◽  
Mapping System ◽  
Respiratory Change ◽  
Electrophysiology Mapping

Abstract Background The EnSite Precision™ Cardiac Mapping System is a catheter navigation and mapping system capable of displaying the three-dimensional (3D) position of conventional and sensor enabled electrophysiology catheters, as well as displaying cardiac electrical activity as waveform traces and dynamic 3-D maps of cardiac chambers. Objective The EnSite Precision™ Observational Study was designed to quantify and characterize the use of the EnSite Precision™ Cardiac Mapping System for mapping and ablation of cardiac arrhythmias in a real-world environment and to evaluate procedural and subsequent clinical outcomes. Methods 1065 patients were enrolled at 38 centers in the U.S. and Canada between 2017–2018. Eligible subjects were adults undergoing a cardiac electrophysiology mapping and radiofrequency ablation procedures using the EnSite Precision™ System. Results Of 989 patients who completed the protocol, a geometry was created in 936 (94.7%). Most initial maps were created using Automap (n=545, 67.0%) or a combination of Automap and manually mapping (n=151, 18.6%). Median time to create an initial map was 9.0 min (IQR 5.0–15.0), with a median number of used mapping points per minute of 92.7 (IQR 30.0–192.0). During ablation, AutoMark was used in 817 (82.6%) of procedures. The most frequent metrics for lesion color were Impedance Drop or Impedance Drop Percent (45.5% combined), time (23.9%) and average force (14.2%). At Canadian sites where LSI was an option, it was used as the color metric in 87 (45.8%) of cases (10.6% overall). The EnSite System was stable throughout 79.7% (n=788 of 989) of procedures. Factors affecting stability were respiratory change (n=88 of 989, 8.9%), patient movement (n=73, 7.4%), CS Positional Reference dislodgement (n=32, 3.2%), and cardioversion (n=19, 1.9%). Conscious sedation was used in 189 (19.1%) of patients. Acute success was reached based on the pre-defined endpoints for the procedure in 97.4% (n=963) of cases. Conclusion In a real-world study analysis, the EnSite Precision™ mapping system was associated with a high prevalence of acute procedural success, low mapping times, and high system stability. Funding Acknowledgement Type of funding source: None

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