早產兒血氧飽和濃度降低之概念分析

Concept Analysis: Desaturation in Preterm Infants

在早產兒臨床照護與研究中，血氧飽和濃度乃是氧合狀態的重要指標之一，而血氧飽和濃度降低「desaturation」一詞常被用來代表早產兒血氧飽和濃度下降或不足之狀況，然而早產兒之胎兒血紅素比例較高、生理較不成熟且對環境刺激較為敏感，臨床上或相關研究對於早產兒之血氧飽和濃度降低一詞並無一致的定義，此現象可能影響醫護人員之溝通及臨床處置。故本文以Walk和Avant概念分析步驟進行早產兒血氧飽和濃度降低之概念分析，探討前因後果、定義性特徵及考量早產兒之成熟度與疾病狀態等個別性，期望提供護理人員與研究者使用早產兒血氧飽和濃度降低此名詞時有共同概念定義，能更正確評估早產兒血氧飽和濃度降低並給予適切之護理措施，減少因氧氣不足或氧氣過高對早產兒造成之傷害。

Oxygen saturation is one of the important indicators of oxygenation in preterm infants. The term “oxgen desaturation” is used to indicate decrease or deficiency of oxygen saturation. However, there is no consensus of defining oxygen desaturation of premature infants because they have a higher proportion of fetal hemoglobin, less mature, and more sensitive to the environmental stimulation as compared to the adults. This phenomenon may affect communication among health providers and clinical decision. Therefore, this article analyzes the concept of “desaturation in preterm infants” by following procedures suggested by Walker and Avant. By clarifying attributions, consequences, and definitions of “desaturation in preterm infants” and considering the infant’s individuality, nurses and researchers can accurately assess premature infants’ oxygenation and provide effective care.