الفهرس 
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Abstract
This study was conducted to identify the effect of deep breathing exercises on postoperative
respiratory efficiency among children with open-heart surgery. It was carried out at the cardiology
unit and open heart intensive care unit (ICU) in Cairo University Pediatric Hospital (CUPH). A
quazi - experimental design was utilized for it. A purposeful sample of 60 children with congenital
heart disease and undergoing an open-heart surgery were recruited for the study it. Data required
for study were collected through the use of a questionnaire sheet and a respiratory assessment
sheet, which were designed by the researcher based on reviewing the necessary literature. The first
tool was a questionnaire sheet which consisted of three parts: related to the child and his/her
parents and family; the child’s disease and preparation for surgery; and finally children’s view
about the deep breathing exercises. The second tool was a respiratory assessment sheet. Data were
collected through interviewing the mothers and children. No psychological preparation was available
for both the study and control groups. Most of children in the study and control groups (86.7%)
hadn’t knowledge about deep breathing exercises. There was a statistically significant difference
between the children in the study group and the control group in respiratory efficiency in relation
to rate, depth, cough, 02 saturation, Pa02 and PaC02 .The study concluded that the majority of
children were lacking knowledge about deep breathing exercises in relation to its technique, time
and frequency of application, importance and effects. It was also concluded that the children in
the study group had more efficient respiratory pattern postoperatively than the control group. It
was recommended that Deep breathing exercises must be given a high priority in the nursing care
plan specially preoperatively for heart surgery, and Hospital physiotherapist, medical, and nursing
students must have an active role in pre and post surgical preparations.