Official websites use. Share sensitive information only on official, secure websites. Correspondence to: Dr. Email: j. Although some patients develop pulmonary fibrosis 1 , the majority of them recover without sequelae, especially after mild symptoms. The French Pulmonary Society of Respiratory Diseases has proposed guidelines for monitoring patients 2. In case of unexplained persistent respiratory symptoms, it is suggested to look for a cardiac or pulmonary thromboembolic cause or for a hyperventilation syndrome HVS 2.
HVS is characterized by a wide variety of somatic symptoms induced by inappropriate ventilation and reproduced by voluntary hyperventilation 3 , 4. HVS is frequently confusing for physicians as the patient may express both cardiorespiratory dyspnea: thirst for air, difficulty in breathing; sighs; yawning, chest pain; palpitations and extrarespiratory symptoms intense asthenia, weakness, confusion, anxiety, dizziness, paresthesia, muscle cramps , that can possibly match to the clinical presentation of COVID 5.
We dismissed patients with dyspnea and obvious abnormality on one of these tests. They presented with a stereotypical symptomatology suggesting a diagnosis of HVS: difficulty in inspiration or chest tightness.
All patients consented to the use of routine care exam-extracted medical data. Among the 10 patients, eight were female, two were male. The COVID infection had been confirmed by reverse transcriptase-polymerase chain reaction test on nasopharyngeal swab for all patients.
Two patients had been hospitalized, only one had required oxygen and non-invasive ventilation. Three patients had been prescribed antibiotics and one had received hydroxychloroquine. The major symptoms reported by all patients were difficulties in breathing in or chest tightness. All patients with HVS were female, three had a previous diagnosis of mild asthma 2 were receiving inhaled corticosteroids that was controlled with normal functional tests.
