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19 Results Found

  • Article
  • Open Access
5 Citations
5,828 Views
12 Pages

The Effects of Hypocapnia on Brain Tissue Pulsations

  • Meshal Alharbi,
  • Poppy Turner,
  • Jonathan Ince,
  • Mitsuhiro Oura,
  • Kelechi U. Ebirim,
  • Alanoud Almudayni,
  • Andrea Lecchini-Visintini,
  • Jatinder S. Minhas and
  • Emma M.L. Chung

6 September 2020

Hypocapnia is known to affect patients with acute stroke and plays a key role in governing cerebral autoregulation. However, the impact of hypocapnia on brain tissue pulsations (BTPs) is relatively unexplored. As BTPs are hypothesised to result from...

  • Article
  • Open Access
2 Citations
1,807 Views
10 Pages

30 September 2023

Blood gas analysis is part of the diagnostic work−up for pulmonary hypertension (PH). Although some studies have found that the partial pressure of carbon dioxide (PaCO2) is an independent marker of mortality in individuals with pulmonary arter...

  • Brief Report
  • Open Access
10 Citations
2,612 Views
6 Pages

Residual Lung Function Impairment Is Associated with Hyperventilation in Patients Recovered from Hospitalised COVID-19: A Cross-Sectional Study

  • Ernesto Crisafulli,
  • Daniele Gabbiani,
  • Giulia Magnani,
  • Gianluigi Dorelli,
  • Fabiana Busti,
  • Giulia Sartori,
  • Gianenrico Senna and
  • Domenico Girelli

3 March 2021

Patients who have recovered from COVID-19 show persistent symptoms and lung function alterations with a restrictive ventilatory pattern. Few data are available evaluating an extended period of COVID-19 clinical progression. The RESPICOVID study has b...

  • Article
  • Open Access
6 Citations
2,597 Views
11 Pages

6 December 2022

Goats can suffer from intermittent heat stress in high ambient temperature (HTa) conditions, which causes sporadic respiratory hypocapnia. Obstructive urolithiasis is a common urological problem in goats. Sandy uroliths can be partially relieved by u...

  • Review
  • Open Access
27 Citations
22,418 Views
11 Pages

Acid-Base Disturbances in Patients with Asthma: A Literature Review and Comments on Their Pathophysiology

  • Ioannis Vasileiadis,
  • Emmanouil Alevrakis,
  • Sevasti Ampelioti,
  • Dimitrios Vagionas,
  • Nikoletta Rovina and
  • Antonia Koutsoukou

25 April 2019

Asthma is a common illness throughout the world that affects the respiratory system function, i.e., a system whose operational adequacy determines the respiratory gases exchange. It is therefore expected that acute severe asthma will be associated wi...

  • Article
  • Open Access
10 Citations
3,274 Views
15 Pages

Neonates treated with therapeutic hypothermia (TH) following perinatal asphyxia (PA) suffer a considerable rate of disability and mortality. Several risk factors associated with adverse outcomes have been identified. Mechanical ventilation might incr...

  • Review
  • Open Access
837 Views
20 Pages

First Breath Matters: Out-of-Hospital Mechanical Ventilation in Patients with Traumatic Brain Injury

  • Victoria Brinker,
  • Aristomenis Exadaktylos,
  • Wolf Hautz and
  • Mairi Ziaka

28 November 2025

Invasive mechanical ventilation (MV) is often a lifesaving intervention in patients with traumatic brain injury (TBI) to optimize gas exchange and prevent secondary brain injury, thereby avoiding the deleterious effects of both hypoxia and hyperoxia,...

  • Article
  • Open Access
9 Citations
2,903 Views
12 Pages

Post-Resuscitation Partial Pressure of Arterial Carbon Dioxide and Outcome in Patients with Out-of-Hospital Cardiac Arrest: A Multicenter Retrospective Cohort Study

  • Nobunaga Okada,
  • Tasuku Matsuyama,
  • Yohei Okada,
  • Asami Okada,
  • Kenji Kandori,
  • Satoshi Nakajima,
  • Tetsuhisa Kitamura and
  • Bon Ohta

10 March 2022

We aimed to estimate the association between PaCO2 level in the patient after out-of-hospital cardiac arrest (OHCA) resuscitation with patient outcome based on a multicenter prospective cohort registry in Japan between June 2014 and December 2015. Ba...

  • Review
  • Open Access
38 Citations
11,735 Views
8 Pages

12 March 2022

Dyspnea, shortness of breath, and chest pain are frequent symptoms of post-COVID syndrome (PCS). These symptoms are unrelated to organ damage in most patients after mild acute COVID infection. Hyperventilation has been identified as a cause of exerci...

  • Article
  • Open Access
2 Citations
3,250 Views
12 Pages

Near-Infrared Spectroscopy Usefulness in Validation of Hyperventilation Test

  • Stefan Sandru,
  • Dan Buzescu,
  • Carmen Denise Mihaela Zahiu,
  • Ana Spataru,
  • Anca Maria Panaitescu,
  • Sebastian Isac,
  • Cosmin Ion Balan,
  • Ana-Maria Zagrean and
  • Bogdan Pavel

6 October 2022

Background: The hyperventilation test is used in clinical practice for diagnosis and therapeutic purposes; however, in the absence of a standardized protocol, the procedure varies significantly, predisposing tested subjects to risks such as cerebral...

  • Article
  • Open Access
5 Citations
9,052 Views
13 Pages

Effects of Respiratory Muscle Warm-up on High-Intensity Exercise Performance

  • Taylor S. Thurston,
  • Jared W. Coburn,
  • Lee E. Brown,
  • Albert Bartolini,
  • Tori L. Beaudette,
  • Patrick Karg,
  • Kathryn A. McLeland,
  • Jose A. Arevalo,
  • Daniel A. Judelson and
  • Andrew J. Galpin

5 November 2015

Exercise performance is partially limited by the functionality of the respiratory musculature. Training these muscles improves steady-state exercise performance. However, less is known about the efficacy of executing a respiratory muscle warm-up (RWU...

  • Article
  • Open Access
2 Citations
1,939 Views
9 Pages

Intraoperative Blood Pressure and Carbon Dioxide Values during Aneurysmal Repair and the Outcomes after Aneurysmal Subarachnoid Hemorrhage

  • Umeshkumar Athiraman,
  • Aaron J. Norris,
  • Keshav Jayaraman,
  • Abhijit V. Lele,
  • Rainer Kentner,
  • Preet Mohinder Singh,
  • Omokhaye M. Higo,
  • Gregory J. Zipfel and
  • Rajat Dhar

24 August 2023

Cerebral autoregulation impairment is a critical aspect of subarachnoid hemorrhage (SAH)-induced secondary brain injury and is also shown to be an independent predictor of delayed cerebral ischemia (DCI) and poor neurologic outcomes. Interestingly, i...

  • Review
  • Open Access
8 Citations
2,580 Views
11 Pages

Ventilation Targets for Patients Undergoing Mechanical Thrombectomy for Acute Ischemic Stroke: A Systematic Review

  • Alessandro Scudellari,
  • Paula Dudek,
  • Luca Marino,
  • Rafael Badenes and
  • Federico Bilotta

26 July 2023

Mechanical thrombectomy (MT) has become a standard treatment for acute ischemic stroke (AIS) caused by large vessel occlusion (LVO). Recent evidence suggests that general anesthesia (GA) and mechanical ventilation do not lead to inferior neurologic o...

  • Article
  • Open Access
1,756 Views
10 Pages

Detection of Blood CO2 Influences on Cerebral Hemodynamics Using Transfer Entropy

  • Juan Fernández-Muñoz,
  • Victoria J. Haunton,
  • Ronney B. Panerai and
  • José Luis Jara

25 December 2023

Cerebral hemodynamics describes an important physiological system affected by components such as blood pressure, CO2 levels, and endothelial factors. Recently, novel techniques have emerged to analyse cerebral hemodynamics based on the calculation of...

  • Case Report
  • Open Access
629 Views
5 Pages

Combined Pulmonary Fibrosis and Emphysema: Case Report and Literature Review

  • Monika Kosacka,
  • Anna Brzecka,
  • Renata Jankowska,
  • Jerzy Lewczuk,
  • Ewa Mroczek and
  • Bożena Weryńska

16 March 2009

We describe the case of a 61-year-old male patient, in which the search for the cause of chronic respiratory failure, severe pulmonary hypertension and secondary erythrocytosis resulted in a diagnosis of combined pulmonary fibrosis and emphysema (CPF...

  • Protocol
  • Open Access
7 Citations
5,903 Views
14 Pages

4 November 2022

Until now, non-specific chronic neck pain has mainly been considered as a musculoskeletal system dysfunction, with associated psychological involvement due to its prolonged or recurrent nature. However, patients with non-specific chronic neck pain fr...

  • Article
  • Open Access
5 Citations
6,138 Views
23 Pages

Prediction of Acid-Base and Potassium Imbalances in Intensive Care Patients Using Machine Learning Techniques

  • Ratchakit Phetrittikun,
  • Kerdkiat Suvirat,
  • Kanakorn Horsiritham,
  • Thammasin Ingviya and
  • Sitthichok Chaichulee

Acid–base disorders occur when the body’s normal pH is out of balance. They can be caused by problems with kidney or respiratory function or by an excess of acids or bases that the body cannot properly eliminate. Acid–base and potas...

  • Article
  • Open Access
892 Views
16 Pages

Comparison of Cerebral Blood Flow During General Anesthesia in Elderly Patients with and Without Dementia: A Prospective Controlled Clinical Trial

  • Yoshinari Morimoto,
  • Megumi Hayashi,
  • Yohei Tanaka,
  • Hitomi Nishizaki,
  • Masayoshi Shirakawa,
  • Ryota Tamura and
  • Lou Mikuzuki

23 September 2025

Background/Objectives: The maintenance of cerebral blood flow (CBF) by managing blood pressure and brain cell activity and avoiding hypocapnia is important when administering anesthesia to patients with dementia. This study aimed to evaluate CBF duri...

  • Article
  • Open Access
16 Citations
3,443 Views
12 Pages

Cardiorespiratory Adaptation to Short-Term Exposure to Altitude vs. Normobaric Hypoxia in Patients with Pulmonary Hypertension

  • Simon R. Schneider,
  • Mona Lichtblau,
  • Michael Furian,
  • Laura C. Mayer,
  • Charlotte Berlier,
  • Julian Müller,
  • Stéphanie Saxer,
  • Esther I. Schwarz,
  • Konrad E. Bloch and
  • Silvia Ulrich

14 May 2022

Prediction of adverse health effects at altitude or during air travel is relevant, particularly in pre-existing cardiopulmonary disease such as pulmonary arterial or chronic thromboembolic pulmonary hypertension (PAH/CTEPH, PH). A total of 21 stable...