Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0020440 (hypercapnia)
 7,939 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

We assessed 12 patients with hyperventilation syndrome (HVS) who had experienced hypoxaemia (PaO2 < 60 Torr or SaO2 < 90%) despite the lack of any other organic disease and variability in their blood gas data. Hypoxic and hypercapnic ventilatory responses were measured in nine. Eight of the 12 patients had been referred from other hospitals to our institution for hypoxaemia of unknown origin. Mean PaO2 (n = 12) at rest (non-attack stage) was 87.3 +/- 7.5 Torr (mean +/- SD). Their (n = 9) hypoxic (-0.53 +/- 0.32 l/min/%; range 0.12-0.99) and hypercapnic (2.01 +/- 0.76 l/min/Torr; range 0.69-3.17) ventilatory responses were both within the normal range in our laboratory. The patients with HVS had variable blood gas data, and some of them also exhibited hypercapnia (PaCO2 > 45 Torr). Clinicians who treat patients with HVS should be aware of the possibility of hypoxaemia, even when ventilatory responses are normal. Physicians should also consider HVS as a diagnosis when treating patients with hypoxaemia of unknown origin.
 ...
PMID:Hypoxaemia in patients with hyperventilation syndrome. 930 32

The authors seek to find new connections between recent results of biology and older theories. This paper aims to assemble the jigsaw puzzle. The theoretical background of the hypothesis was described in the previous issue of the journal (Sikter et al. 2017a). Human stress response often coexists with persistent hypocapnia or hypercapnia - developing via psychosomatic pathomechanism - which can lead to mental and psychosomatic illnesses. Chronic hypocapnia mainly generates hyperarousal disorders which may be reversible for an extended time, however, vicious cycles may start when hypoxia and/or severe somatic diseases are simultaneously present (commonly in the elderly), which conditions often end with death without medical help. Chronic hypercapnia devastates the organism initially without symptoms, partly due to neurohumoral contraregulation, consequential dysregulation and metabolic remodeling. Psychosomatic disorders (e.g., diseases of civilization that evolve in people with disadvantaged psychosocial situations) develop over years and decades, causing irreversible changes. Hypercapnia usually occurs in clinical pictures of chronic obstructive pulmonary disease, obesity hypoventilation syndrome, obstructive sleep apnea, and its unobstructed version (sleep-related hypoventilation), generating various organic disorders (hypertension, type 2 diabetes, cardiovascular disorders, immunological diseases, depression, etc.). Because of the above, chronic hypocapnia and hypercapnia cannot be regarded as harmless accompanying phenomena. That is why we have to strive for restoring eucapnia and normalizing the induced ionic changes, which does not appear to be a hopeless task.
 ...
PMID:New aspects in the pathomechanism of diseases of civilization, particularly psychosomatic disorders. Part 2. Chronic hypocapnia and hypercapnia in the medical practice. 2930 7