Table 4: Maternal side effects following medical treatment (ITT group).

Side effectNitroglycerin Placebo P value

Headache (VAS scale 1–10)
 Mean (SD)0.9 (1.6)0.5 (1.3) 0.08
 Median (range)0.0 (0; 6)0.0 (0; 6)

Palpitations (VAS scale 1–10)
 Mean (SD)0.4 (1.1)0.2 (0.5) 0.36
 Median (range)0.0 (0; 5)0.0 (0; 2)

Intention to treat group, ITT: all randomized patients, including 4 patients who did not receive study medication and 2 patients who only received 0.5 mg nitroglycerin.