本研究旨在追蹤冠狀動脈氣球擴張術病患治療後最初三個月的社會支持、不確定感與心理健康。採縱貫式研究，樣本來自台北市四所醫院，1、2、3個月的樣本數為35、34、30人， 樣本之基本特性經卡方檢定無顯著差異。結果顯示:(1)第2、3月校第1個月，社會支持流失多，心理健康差，2、3月間則無顯著變化。(2)第1個月的社會支持綱、社會支持功能與心理健 康有顯著正相關。(3)不確定感與心理健康呈顯著負相關。(4)身體活動受限者較不受限者，不確定感高，心理健康差。(5)第2個月，與家人同住者及冠狀動脈血管阻塞2或3條者較阻塞1條者，社會支持流失較多。(6)第3個月，冠狀動脈血管阻塞2或3條者，不確定感較高;自覺疾病嚴重度為中度或重度者，心理健康較差。依研究結果，「主訴活動受限、自覺疾病中度或重度嚴重及阻塞多條冠狀動脈血管」之病患，應優先以本文所採用之「不確定感量表」及「中國人健康問卷」評估其不確定感及心理健康。

The purpose of this research was to study the aspects of social support, uncertainty and psychological well-being patients who received PTCA during the fIrstthree months following the procedure. A longitudinal exploratorydesign was used. The study sample was recruited from four hospitals in Taipei. The sample sizes for the three months were 35, 34 and 30. The sample's demographic data showed no significant different among the three months by X2 test. The fIndingsshowed: (1)Patients who lost more network, psychological well-being in the second and third months were worse than those in the fIrstmonth, but there was no signifIcant difference between the second and the third months. (2) Social support network and social support function in the fIrstmonth showed a significant positive relation with psychological well-being. (3) There was a signifIcantly negative relation between uncertainty and psychological well-being. (4) Patients with limited physical activity had higher uncertainty and worse psychological well-being than those with no such limitation. (5) In the second month, patients living with families lost more social support; patients with two or three coronary artery occlusions lost more social support. (6)In the third month, patients with two or three coronary artery occlusions had higher uncertainty; patients who perceived themselves as having moderate or severe illness had worse psychological well-being. According to the results, we suggest that patients should be assessed fIrstas to their uncertainty and psychological well-being, limited physical activity, self-perception of moderate or severe illness, and number of coronary artery occlusions.