(870) The effect of exposure to an informative video about amniocentesis on maternal anxiety

We aimed to examine the impact of watching an informative video on maternal anxiety, fear, and the satisfaction- in patients undergoing amniocentesis (AC).

Study Design:

We performed a randomized control trial. Women scheduled to undergo AC were recruited and randomized. Patients in the intervention group watched, before the procedure,  a detailed video (Image 1) that described the procedure, steps, risks, and post-procedure guiding. The control group received standard care.

Situation-specific anxiety was measured before the procedure and exposure to the video (S1) and after AC (S2), using the State-Trait Anxiety Inventory (STAI) score.

In addition, intensity of the pain, discomfort, and satisfaction were measured using the item visual analog scales 11 questionnaire (VAS).

The primary outcome was the change in anxiety level measured as the delta between the STAI scores before and after the procedure (S1-S2). Secondary outcomes were the STAI score after performing AC (S2), and the levels of pain, discomfort and satisfaction as demonstrated in VAS questionnaire.

A sample size of 96 women was calculated to achieve 80% power to demonstrate a decrease of the STAI score by 12%.

Results:

Overall, 110 patients were randomized, and 100 patients were analyzed after completing all questionnaires, 48 patients in the video group and 52 patients in the control group.

The groups did not differ in baseline characteristics and had similar baseline anxiety levels (S1). The mean ∆STAI was 10.16 ± 12.83 in the video group and 11.5 ± 12.94 in the control group (p=0.606).

However, using the VAS questionnaire anxiety during the procedure was significantly lower in the video group (median=3) compared to the control group (median=5), p=0.04 (Table 1). In sub analysis for patients who underwent AC for the first time, there was a lower anxiety score during the procedure and less pain 10 minutes after the procedure in the video group compared to controls (p= 0.041, p=0.025 respectively).

Conclusion:  An informative video shown to patients before AC was associated with a lower level of anxiety during the procedure.