本研究屬縱貫性研究，目的在探討先天性心臟病兒童經歷開心手術治療過程母親的壓力源與因應行為，並了解壓力源及因應行為是否隨著治療過程有顯著差異？本研究採立意取樣，以田野研究法共收集十位個案，將資料寫成行為過程記錄，經內容分析法整理後發現：母親的壓力源包括病童方面—身體狀況、情緒舉止、社會發展；醫療方面—醫療措施、醫療環境、醫療時間、醫療費用；母親方面—照顧能力、社會互動。母親的因應行為包括認知行為—詢問、推測、認定、期望、計劃、比較；情緒回應—焦慮、哀傷、抱怨、罪惡感、無力感、不確定感、往好處想、降低期望、隔離；處置行為—尋求協助、提供照顧。資料經量化後，共計5045個行為單元，母親壓力源及因應行為隨著治療過程有顯著差異。期望藉本研究結果增進護理人員對母親主觀感受到先天性心臟病兒童經歷開心手術治療過程的壓力源及因應行為的了解，進而於治療過程不同期別提供母親有計畫地適時、適地、適性的護理。

　　　　　The purposes of this longitudinal study were to (1) explore the stressors and coping behaviors of mothers having a child with congenital heart disease undergoing open heart surgery, and (2) understand the changes over time in these stressors and coping behaviors as the treatment process progressed. The field method was used to collect data, which was transcribed as a narrative verbal process recording. The records were then analyzed by content analysis. This study had ten subjects chosen by purposive sampling. The results showed that stressors on the mother whose child was undergoing open heart surgery could be inductively categorized as follows: the ill child, the treatment, and the mother herself. The coping behaviors consisted of cognitive beha-vior, emotional response, and management. At different stages of the 5045 behavior units were coded. There was a significant difference in the contribution of the stressors and coping behaviors at different stages of the treatment process. The findings can help nurses better understand the experience and provide some directions to assist mothers with child undergoing open heart surgery.