שחרור מיידי

יש באמת הבדלים בין בתי החולים, שלעתים גם נובעים מהעומס על מיטות האשפוז, אבל האמת שאין הוכחות כי מנוחה במיטה של יותר מ- 20 דקות משפרת את התוצאות (למרות שמנוחה נותנת לאישה הרגשה טובה יותר כי "תרמה" לתהליך). ראי למטה כמה מחקרים בנושא: Is bed rest following embryo transfer necessary? Fertil Steril 1998 Mar;69(3):478-81 Sharif K, Afnan M, Lashen H, Elgendy M, Morgan C, Sinclair L. Assisted Conception Unit, University of Birmingham, Birmingham Women's Hospital, West Midlands, United Kingdom. [email protected] OBJECTIVE: To evaluate the effect of no bed rest following ET on the results of an IVF program. DESIGN: Historical cohort-control study. SETTING: A University-based assisted conception unit. PATIENT(S): One thousand and nineteen (1019) IVF cycles were performed at our unit from June 1994 to August 1996. The historical control consisted of all the 19,697 IVF cycles reported in the United Kingdom national database from April 1994 to March 1995. INTERVENTION: No bed rest following ET in our patients. MAIN OUTCOME MEASURE(S): Pregnancy rate (PR) and clinical PR per cycles started and per ET procedure. RESULT(S): The clinical PR per ET was significantly higher in our patients than in the national data (30% versus 22.9%), as was the clinical PR per cycle (23.5% versus 18.6%). The implantation rate in our patients was 17.2%. CONCLUSION(S): The favorable PR in our patients despite no bed rest following ET suggests the bed rest is not necessary. Is a prolonged bed rest following embryo transfer useful? Hum Reprod 1997 Nov;12(11):2489-92 Botta G, Grudzinskas G. Ecocenter and Fertility Center, Clinica C.G. Ruesch, Naples, Italy. A total of 182 infertile patients undergoing in-vitro fertilization (IVF)-embryo transfer were randomly assigned into two groups. Eighty-seven patients (group A) underwent 97 treatment cycles and had 87 embryo transfer procedures followed by a 24 h period of bed rest. Ninety-five patients (group B) underwent 102 treatment cycles and had 93 embryo transfer followed by a 20 min period of bed rest. There were no statistically significant differences seen between the groups with respect to age, duration and causes of infertility and number of previous fertility treatments. The clinical and biological procedures were identical in both groups, the only difference being the length of bed rest. There were 21 pregnancies in group A (pregnancy rate per embryo transfer: 24.1%) while in group B there were 22 (pregnancy rate per embryo transfer: 23.6%). There were four spontaneous miscarriages (19%) and three twin pregnancies (14.2%) in group A, while in group B there were four spontaneous miscarriages (18.1%) and three twin pregnancies (13.6%). None of these values was statistically significant (P > 0.05). This study shows that a 24 h period of bed rest following embryo transfer is not associated with a better outcome of the IVF-embryo transfer when compared with a 20 min rest period. Prolonged bed rest does not appear to influence the implantation rate after IVF-embryo transfer.