TY - JOUR
T1 - Cumulative pregnancy rate after ICSI with cryopreserved testicular tissue in non-obstructive azoospermia
AU - Dafopoulos, Konstantinos
AU - Griesinger, Georg
AU - Schultze-Mosgau, Askan
AU - Orief, Yasser
AU - Schöpper, Beate
AU - Nikolettos, Nikos
AU - Diedrich, Klaus
AU - Al-Hasani, Safaa
PY - 2005/4
Y1 - 2005/4
N2 - The aim of the present study was to describe a simplified and inexpensive method of testicular tissue freezing to assess the cumulative clinical pregnancy rate (CPR) by this technique, and to provide useful information for counselling couple with non-obstructive azoospermia. One hundred and sixty-five couples with non-obstructive azoospermic males pursuing assisted conception, from December 1995 to December 2002, were included. In all cases, the testicular tissue retrieved by open multiple-biopsy (both sides, by testicular sperm extraction) was frozen using a simple liquid nitrogen vapour freezing technique and was stored in liquid nitrogen thereafter. Only mature spermatozoa were used for intracytoplasmic sperm injection (ICSI) after thawing. Expected CPR were calculated using the Kaplan-Meier survival analysis. A total of 281 cycles were performed resulting in 53 clinical pregnancies. Crude and expected CPR (95% confidence intervals) after three cycles were 32.1 (25.7-40.1) and 55.7% (37.0-74.4) respectively. In conclusion, this simplified method for freezing testicular tissue resulted in a satisfactory outcome after ICSI in cases of non-obstructive azoospermia.
AB - The aim of the present study was to describe a simplified and inexpensive method of testicular tissue freezing to assess the cumulative clinical pregnancy rate (CPR) by this technique, and to provide useful information for counselling couple with non-obstructive azoospermia. One hundred and sixty-five couples with non-obstructive azoospermic males pursuing assisted conception, from December 1995 to December 2002, were included. In all cases, the testicular tissue retrieved by open multiple-biopsy (both sides, by testicular sperm extraction) was frozen using a simple liquid nitrogen vapour freezing technique and was stored in liquid nitrogen thereafter. Only mature spermatozoa were used for intracytoplasmic sperm injection (ICSI) after thawing. Expected CPR were calculated using the Kaplan-Meier survival analysis. A total of 281 cycles were performed resulting in 53 clinical pregnancies. Crude and expected CPR (95% confidence intervals) after three cycles were 32.1 (25.7-40.1) and 55.7% (37.0-74.4) respectively. In conclusion, this simplified method for freezing testicular tissue resulted in a satisfactory outcome after ICSI in cases of non-obstructive azoospermia.
UR - http://www.scopus.com/inward/record.url?scp=16844380157&partnerID=8YFLogxK
U2 - 10.1016/S1472-6483(10)60821-8
DO - 10.1016/S1472-6483(10)60821-8
M3 - Journal articles
C2 - 15901452
AN - SCOPUS:16844380157
SN - 1472-6483
VL - 10
SP - 461
EP - 466
JO - Reproductive BioMedicine Online
JF - Reproductive BioMedicine Online
IS - 4
M1 - 1524
ER -
