Article
Critical Care Medicine
Stefano Lazzari, Federica Romitti, Mattia Busana, Francesco Vassalli, Matteo Bonifazi, Matteo Maria Macri, Lorenzo Giosa, Francesca Collino, Daniel Heise, Martin Golinski, Simone Gattarello, Lars-Olav Harnisch, Serena Brusatori, Roberta Maj, Carmelo Zinnato, Konrad Meissner, Michael Quintel, Onnen Moerer, John J. Marini, Barnaby Sanderson, Luigi Camporota, Luciano Gattinoni
Summary: The main reason for weaning failure from VV-ECMO is the high effort required to eliminate carbon dioxide. A higher ratio of end-tidal carbon dioxide pressure to arterial carbon dioxide pressure is associated with a greater likelihood of weaning from VV-ECMO.
AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE
(2022)
Article
Neurosciences
Jay M. J. R. Carr, Trevor A. Day, Philip N. Ainslie, Ryan L. Hoiland
Summary: This study examined the assumptions of the modified rebreathing technique for evaluating ventilatory central chemoreflex and cerebrovascular CO2 reactivity. The findings indicate that hyperoxic hypercapnic rebreathing may be more appropriate for assessing the sensitivity of the chemoreflex.
JOURNAL OF PHYSIOLOGY-LONDON
(2023)
Article
Clinical Neurology
Jimmy J. Fraigne, Jeffrey Wang, Hanhee Lee, Russell Luke, Sara K. Pintwala, John H. Peever
Summary: Research on sleep-wake behaviors usually relies on manual inspection of EEG and EMG recordings to score sleep states, which is time-consuming and prone to errors. A four-state system provides more precision in behavioral analysis, but is more complex than the traditional three-state system. SleepEns, a novel machine learning ensemble, achieved high accuracy in automated classification and showed similar sleep-wake characteristics as human experts.
Article
Environmental Sciences
Wen-Te Liu, Yuan-Hung Wang, Li-Te Chang, Chih-Da Wu, Dean Wu, Cheng-Yu Tsai, Chen-Chen Lo, Kang Lo, Kian Fan Chung, Ta-Yuan Chang, Kai-Jen Chuang, Yueh-Lun Lee, Hsiao-Chi Chuang
Summary: Obstructive sleep apnea (OSA) is associated with seasonal variations. This study found that ambient relative humidity (RH) and temperature are associated with alterations in sleep parameters in adults, and these associations are mediated by the sleep cycle. Understanding outdoor environments has important implications for diagnostic classifications of supine dominance in adults with OSA.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Biology
Matheus Antonio Gomes, Fernanda Veruska Narciso, Marco Tulio de Mello, Andrea Maculano Esteves
Summary: The study evaluated the sleep patterns of League of Legends athletes during their training and competition routines, finding that most players had poor sleep quality, borderline excessive daytime sleepiness, and a moderately evening chronotype. Correlations were found between various sleep parameters and chronotype, with associations between sleep quality and sleepiness during pre-training and pre-competition, and between chronotype and sleep onset, time awake, and total sleep time during competition. Linear regression analysis showed associations between sleep quality and sleepiness during pre-training and pre-competition, and between chronotype and various sleep parameters during competition. Overall, the findings suggest that LoL athletes exhibit altered sleep patterns during their training routines.
CHRONOBIOLOGY INTERNATIONAL
(2021)
Article
Medicine, Research & Experimental
Jian-wen Zhang, Zhi-gan Lv, Wei-wei Zhang, Zhe Wang, Bao-guo Wang
Summary: The study revealed a negative correlation between PRi and ETsevo, as well as between MAP and ETsevo, while a low positive correlation was found between PRi and MAP.
JOURNAL OF INTERNATIONAL MEDICAL RESEARCH
(2021)
Review
Pediatrics
M. Lelii, L. Senatore, F. Paglialonga, S. Consolo, G. Montini, A. Rocchi, P. Marchisio, M. F. Patria
Summary: Chronic Kidney Disease (CKD) is a progressive and irreversible disease that leads to end-stage kidney disease (ESKD). It damages multiple organs due to the toxicity of uremic compounds. Pulmonary function impairment in CKD patients may be caused by fluid retention, metabolic, endocrine, and cardiovascular changes, as well as systemic inflammation. Sleep disorders are also more prevalent in CKD patients, further impacting overall health and quality of life. However, there is limited research on these aspects in children. This review aims to provide a brief overview of the pathophysiology between lung and kidney and summarize the effects of CKD on respiratory function and sleep in children.
PAEDIATRIC RESPIRATORY REVIEWS
(2023)
Article
Surgery
Ji-Hoon Park, Hye-Mi Lee, Chang Moo Kang, Kyung Sub Kim, Chul Ho Jang, Ho Kyoung Hwang, Jeong-Rim Lee
Summary: This study investigated the association between intraoperative end-tidal carbon dioxide (EtCO2) levels and length of hospital stay (LOS) in patients undergoing pylorus-preserving pancreaticoduodenectomy (PPPD). The results showed that hypocapnia was an independent risk factor for longer LOS, with low EtCO2 levels during general anesthesia being associated with increased LOS in PPPD patients.
WORLD JOURNAL OF SURGERY
(2021)
Article
Critical Care Medicine
Richard H. Kallet, Michael S. Lipnick
Summary: The study evaluated the correlation between P-ETCO2/P-aCO2 and V-D/V-T, showing a strong negative correlation between the two and an association between lower P-ETCO2/P-aCO2 values and increased hospital mortality. A P-ETCO2/P-aCO2 < 0.50 was associated with high mortality and elevated V-D/V-T values. Using P-ETCO2/P-aCO2 as a surrogate for V-D/V-T may be a practical measure for managing ARDS and conducting further research.
Article
Physiology
Tom Bullock, Barry Giesbrecht, Andrew E. Beaudin, Bradley G. Goodyear, Marc J. Poulin
Summary: Researchers developed a multimodal strategy to monitor cognition and cerebral blood flow simultaneously and found that changes in arterial blood gases affected neural activity and task performance. The study results suggest that transient arterial blood gas changes may modulate multiple stages of cognitive information processing.
PHYSIOLOGICAL REPORTS
(2021)
Article
Critical Care Medicine
Matteo Bonifazi, Federica Romitti, Mattia Busana, Maria Michela Palumbo, Irene Steinberg, Simone Gattarello, Paola Palermo, Leif Saager, Konrad Meissner, Michael Quintel, Davide Chiumello, Luciano Gattinoni
Summary: The PETCO2/PaCO2 ratio is highly correlated with the anatomo physiological characteristics in ARDS patients and serves as a good indicator of gas exchanger status.
INTENSIVE CARE MEDICINE EXPERIMENTAL
(2021)
Article
Clinical Neurology
Darya Saeed Abdulateef
Summary: This study aimed to assess the correlation of prolactin levels with sleep duration, the durations from waking to sample collection, and some demographic factors. The study found that in healthy adult subjects, reproductive females had the highest prolactin levels, while menopausal females had the lowest levels. There were no significant differences in prolactin levels between different menstrual cycle phases. Prolactin levels were not significantly correlated with sleep duration, age, BMI, and waist circumference.
SLEEP AND BIOLOGICAL RHYTHMS
(2023)
Article
Emergency Medicine
Dong Sun Choi, Heejin Kim, Ki Jeong Hong, Sang Do Shin, Hee Chan Kim, Yong Joo Park, Tae Han Kim, Young Sun Ro, Kyoung Jun Song, Ki Hong Kim
Summary: An experimental study was conducted using a porcine cardiac arrest model to evaluate the correlation between the brain resuscitation index (EBRI) and end-tidal carbon dioxide (ETCO2) as indicators of organ perfusion during cardiopulmonary resuscitation (CPR). The results revealed a moderate positive correlation between EBRI and ETCO2, with higher-quality CPR showing significantly higher EBRI values compared to lower-quality CPR.
Proceedings Paper
Medicine, Research & Experimental
Christel Cariddi, L. Andresciani, C. Calabro, M. Laforgia, M. Ronchi, S. De Summa, R. Boccuzzi, A. De Rosa, E. Rizzo, G. Losito, G. Bradascio, G. Napoli, M. Simone, G. Carravetta, G. Mastrandrea
Summary: Intraoperative evaluation using non-invasive monitoring methods can assess oxygen changes during surgery. The study found that changes in carbon dioxide levels (Delta EtCO2) during surgery are associated with surgical complications and length of hospital stay. However, further validation analysis is necessary to confirm the effectiveness of this method.
OXYGEN TRANSPORT TO TISSUE XLIII
(2022)
Article
Pharmacology & Pharmacy
S. Jain, L. Kumar, S. C. Babu, A. Sadhoo, G. C. Ravindran, S. Rajan
Summary: There is a moderate correlation between ETCO2 and PaCO2 during pediatric laparoscopy at 2 hours of pneumoperitoneum and at baseline, ten minutes, and ten minutes after deflation. P(A-a)O-2 increases progressively with surgery but does not correlate with P(a-ET)CO2.
JOURNAL OF ANAESTHESIOLOGY CLINICAL PHARMACOLOGY
(2022)