Abstract
Recently, the relationships between cerebral blood flow and pulmonary function have become an important clinical interest. The partial pressure of carbon dioxide and oxygen in arterial blood influences on cerebral hemodynamics. The cerebral blood flow and metabolism were measured by N2O technics in patients with chronic pulmonary disease, and their ventilatory function tests were also performed at the same period. The results obtained in this investigation showed slightly increased cerebral blood flow in patients with chronic pulmonary disease, although clear correlationships between cerebral blood flow and the severity of ventilatory dysfunction expressed by spirogram were not demonstrated.
