[Hyperventilation syndrome, definition, diagnostic and therapy]

Hyperventilation syndrome (HVS) is a frequent disorder of which the etiology is unclear. Diagnosis is based on the ruling out of organic disease and, more positively, on results of the Nijmegen questionnaire, reproduction of symptoms during the hyperventilation provocation test (HPVT), and detected hypocapnia. Treatment is based on targeted respiratory physiotherapy consisting in voluntary hypoventilation and instructions to the patient on regular respiratory exercise over an appreciable period of time. Additional research is needed to evaluate the validity of current investigative tools leading to the diagnosis of hyperventilation syndrome and to appraise the efficacy of current respiratory physiotherapy methods.

[The psychological burden of asthma]

The experience of living with asthma varies between patients. In some cases, the psychological experience can take a central place and determine the course of asthma. Asthmatic disease can be complicated by adaption disorders that hamper the treatment, or genuine anxiety and depressive disorders that require the intervention of mental health specialists. Even more, the psychological experience can influence the intensity and frequency of the physical symptoms themselves, for example when asthma is associated with a hyperventilation syndrome worsening the functional impact and complicating the treatment. In this article, we underline the significance of the psychological experience through several clinical vignettes of patients suffering from asthma. In particular, we discuss the role of denial, or conversely identification with the status of being a patient, and the importance of the emotional experience associated with the symptoms of asthma. We highlight the relevance of therapeutic education programs as well as cognitive-behavioral therapies and psycho-corporal techniques, such as relaxation, for the psychological care of asthmatic disease. Finally, we detail how to better recognize a hyperventilation syndrome associated with asthma, how it can be approached with the patient and the treatment options. Through these examples, we illustrate the relevance of a comprehensive approach that integrates the psychological experience into the care of asthmatic disease.