In a study comparing hypercapnic and normocapnic
COPD patients, the six-minute walk distance was found to be shorter in hypercapnic patients (39).
Two different gas mixtures were employed in this study; (i) normoxic normocapnic
gas: 21% [O.
mechanical ventilation was performed with the gas mixture composed of nitrous oxide and oxygen.
A key complication of acute hyponatraemia is normocapnic
or hypercapnic respiratory failure; the associated hypoxaemia may amplify the neurologic injury.
Human erythropoietin response to hypocapnic hypoxia, normocapnic
hypoxia, and hypocapnicnormoxia.
The trial included only normocapnic
patients and did not compare EMST with other forms of training, which the authors considered the study limitation .
7 kg, 4 females and 6 males) in the RMET group performed their usual training sessions (TS) and received RMET (in the form of normocapnic
hyperpnea); and ten swimmers (16.
Table 3 Arterial blood gas response Normocapnic
Hypercapnic group * group ([dagger]) Baseline Number of patients 18 18 pH 7.
In arterial blood gas analysis, the patient has hypoxemic and normocapnic
respiratory deficiency with PaO2: 55mmHG, PCO2: 46mmHg, SaO2: 88%.
All the patients were classified as cryptogenic, except a 49-year-old woman who presented with normocapnic
respiratory failure and acute renal failure.
In the most extensive evaluation of changes in respiratory function during sleep in COPD, Ballard et al (46) studied 5 normocapnic
patients with severe, stable COPD using a horizontal body box.
Fourth, there is heterogeneity in the method of IMT examined in previous reviews: normocapnic
hyperpnea, threshold loading, and resistive loading.