Changes in the tone of cerebral vessels in patients with bronchial asthma after glomectomy

1982 ◽  
Vol 63 (1) ◽  
pp. 56-56
Author(s):  
E. S. Karashurov ◽  
S. E. Karashurov
Keyword(s):  
Blood Flow ◽  
Bronchial Asthma ◽  
Cerebral Vessels ◽  
Acid Base Balance ◽  
Acid Base ◽  
Base Balance ◽  
The Brain

Frequent complications of glomectomy are headaches and a mild, less-like state for several days or weeks after surgery, and sometimes hemi- and monoparesis. The reasons for these complications have not yet been revealed. In search of their explanation, we decided to study the volumetric blood flow of the brain and the acid-base state (ACS). Volumetric blood flow was studied by rheoencephalography (REG) in 43 patients, and acid base balance - in 100 patients (age from 22 to 67 years). The course of bronchial asthma before the operation in the examined patients was moderate and severe.

Effect of ventilation on acid-base balance and oxygenation in low blood-flow states

1994 ◽  
Vol 22 (11) ◽  
pp. 1827-1834
Author(s):  
Ahamed H. Idris ◽  
Edward D. Staples ◽  
Daniel J. Oʼbrien ◽  
Richard J. Melker ◽  
William J. Rush ◽  
...  
Keyword(s):  
Blood Flow ◽  
Acid Base Balance ◽  
Acid Base ◽  
Base Balance ◽  
Flow States

Blood gases and acid-base balance in children with bronchial asthma

Lung ◽  
1978 ◽  
Vol 155 (1) ◽  
pp. 111-122 ◽  
Author(s):  
Ejvor Oberger ◽  
Inga Engström
Keyword(s):  
Bronchial Asthma ◽  
Blood Gases ◽  
Acid Base Balance ◽  
Acid Base ◽  
Base Balance

scholarly journals Photobiomodulation 30 min or 6 h Prior to Cycling Does Not Alter Resting Blood Flow Velocity, Exercise-Induced Physiological Responses or Time to Exhaustion in Healthy Men

2021 ◽  
Vol 11 ◽  
Author(s):  
Yago Medeiros Dutra ◽  
Gabriel Machado Claus ◽  
Elvis de Souza Malta ◽  
Daniela Moraes de Franco Seda ◽  
Anderson Saranz Zago ◽  
...  
Keyword(s):  
Blood Flow ◽  
Flow Velocity ◽  
Femoral Artery ◽  
Blood Flow Velocity ◽  
Time To Exhaustion ◽  
Acid Base Balance ◽  
Acid Base ◽  
Base Balance ◽  
Exercise Induced ◽  
Plasma Nitrite

PurposeThe aim of the current study was to investigate the effects of photobiomodulation therapy (PBMT) applied 30 min or 6 h prior to cycling on blood flow velocity and plasma nitrite concentrations at rest, time to exhaustion, cardiorespiratory responses, blood acid-base balance, and K+ and lactate concentrations during exercise.MethodsIn a randomized, crossover design, 13 healthy untrained men randomly completed four cycling bouts until exhaustion at the severe-intensity domain (i.e., above respiratory compensation point). Thirty minutes or 6 h prior to the cycling trials, participants were treated with PBMT on the quadriceps, hamstrings, and gastrocnemius muscles of both limbs using a multi-diode array (11 cm × 30 cm with 264 diodes) at doses of 152 J or a sham irradiation (with device turned off, placebo). Blood samples were collected before and 30 min or 6 h after treatments to measure plasmatic nitrite concentrations. Doppler ultrasound exams of the femoral artery were also performed at the same time points. Cardiorespiratory responses, blood acid-base balance, and K+ and lactate concentrations were monitored during exercise sessions.ResultsPBMT did not improve the time to exhaustion (p = 0.30). At rest, no differences were found in the peak systolic velocity (p = 0.97) or pulsatility index (p = 0.83) in the femoral artery, and in plasma nitrite concentrations (p = 0.47). During exercise, there were no differences for any cardiorespiratory response monitored (heart rate, p = 0.15; oxygen uptake, p = 0.15; pulmonary ventilation, p = 0.67; carbon dioxide output, p = 0.93; and respiratory exchange ratio, p = 0.32), any blood acid-base balance indicator (pH, p = 0.74; base excess, p = 0.33; bicarbonate concentration, p = 0.54), or K+ (p = 0.22) and lactate (p = 0.55) concentrations.ConclusionsPBMT at 152 J applied 30 min or 6 h before cycling at severe-intensity did not alter resting plasma nitrite and blood flow velocity in the femoral artery, exercise-induced physiological responses, or time to exhaustion in healthy untrained men.

Effect of ventilation on acid-base balance and oxygenation in low blood-flow states

1994 ◽  
Vol 22 (11) ◽  
pp. 1827-1834 ◽  
Author(s):  
Ahamed H. Idris ◽  
Edward D. Staples ◽  
Daniel J. OʼBrien ◽  
Richard J. Melker ◽  
William J. Rush ◽  
...  
Keyword(s):  
Blood Flow ◽  
Acid Base Balance ◽  
Acid Base ◽  
Base Balance ◽  
Flow States

Suprapontine mechanisms in regulation of respiration

1962 ◽  
Vol 202 (2) ◽  
pp. 217-220 ◽  
Author(s):  
B. R. Fink ◽  
R. Katz ◽  
H. Reinhold ◽  
A. Schoolman
Keyword(s):  
Brain Stem ◽  
Ventilatory Response ◽  
Regulation Of Respiration ◽  
Acid Base Balance ◽  
Acid Base ◽  
Base Balance ◽  
Reticular Activating System ◽  
The Brain ◽  
Frequency Of Respiration

The ventilation and blood acid-base balance of 19 cats were studied after supracollicular ablation of the forebrain and again after intercollicular transection of the brain stem. The first ablation caused a marked increase in the frequency of respiration, apparently unmasking a caudad facilitory influence through the removal of forebrain inhibition. Hypocapnic apnea could not be induced in this preparation. After intercollicular section there was a sudden fall in frequency, the ventilatory response to CO2 was diminished and hypocapnic apnea was easily induced. It is concluded that a tonic facilitory effect on respiration originates in the rostral midbrain and adjacent diencephalon, possibly in the reticular activating system.

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