We report pregnancy in a 42 year-old patient who received donated cryopreserved oocytes. Eight of 10 frozen-thawed oocytes survived and ICSI was performed two hours after culture at 37ºC. After 3 days in culture 3 good quality embryos were transferred obtaining a pregnancy consisting in two gestational sacs, currently live newborns.

It is necessary to review reproductive surgery from the perspective of in vitro fertilization (IVF) preparatory treatment. When hydrosalpinx is present, laparoscopic salpingectomy is required before entering to an IVF program, considering that surgery does not compromise ovarian stimulation or pregnancy rates with respect to patients with healthy fallopian tubes. As rates of implantation and pregnancy are not altered by endometriosis, carrying the patient to surgery risks is not worth. Faced with tubal ligation, best results are achieved when clips were applied in the middle of the isthmus and worst results when the procedure removed the distal end of the fimbria. Patients with less than 4 cm subserosal or intramural fibroids that do not alter the uterine cavity have IVF / ICSI results similar to those that do not have them, and do not require myomectomy. In cases of recurrent pregnancy ...

It is necessary to review reproductive surgery from the perspective of in vitro fertilization (IVF) preparatory treatment. When hydrosalpinx is present, laparoscopic salpingectomy is required before entering to an IVF program, considering that surgery does not compromise ovarian stimulation or pregnancy rates with respect to patients with healthy fallopian tubes. As rates of implantation and pregnancy are not altered by endometriosis, carrying the patient to surgery risks is not worth. Faced with tubal ligation, best results are achieved when clips were applied in the middle of the isthmus and worst results when the procedure removed the distal end of the fimbria. Patients with less than 4 cm subserosal or intramural fibroids that do not alter the uterine cavity have IVF / ICSI results similar to those that do not have them, and do not require myomectomy. In cases of recurrent pregnancy ...

We report pregnancy in a 42 year-old patient who received donated cryopreserved oocytes. Eight of 10 frozen-thawed oocytes survived and ICSI was performed two hours after culture at 37ºC. After 3 days in culture 3 good quality embryos were transferred obtaining a pregnancy consisting in two gestational sacs, currently live newborns.

Introduction: The spermatogram is used as a test of seminal quality. Recently, the sperm fragmentation test has demonstrated importance as sperm DNA integrity would affect clinical results in assisted reproduction treatments. Objectives: To determine spermatogram variables that would independently predict sperm DNA fragmentation index (SFI). Design: Retrospective, comparative study. Settings: Grupo PRANOR, Reprogenetics Latinoamerica, Clinica Concebir, Lima, Peru. Biologic material: Sperm. Methods: Individual variables and two models were compared: the first model considered percentage of sperm viability and patient’s age; the second model included percentage of motile sperms and age. Logistic regression analysis was done. Main outcome measures: Sperm viability, age. Results: Multivariate analysis showed that both models were significantly superior to individuals variables (p<0.01). Th...

Introduction: The spermatogram is used as a test of seminal quality. Recently, the sperm fragmentation test has demonstrated importance as sperm DNA integrity would affect clinical results in assisted reproduction treatments. Objectives: To determine spermatogram variables that would independently predict sperm DNA fragmentation index (SFI). Design: Retrospective, comparative study. Settings: Grupo PRANOR, Reprogenetics Latinoamerica, Clinica Concebir, Lima, Peru. Biologic material: Sperm. Methods: Individual variables and two models were compared: the first model considered percentage of sperm viability and patient’s age; the second model included percentage of motile sperms and age. Logistic regression analysis was done. Main outcome measures: Sperm viability, age. Results: Multivariate analysis showed that both models were significantly superior to individuals variables (p<0.01)....

The GnRH antagonists (GnRHant) protocol has allowed the use of GnRH agonist (GnRHa) as inductor of ovulatory discharge (OD) replacing human chorionic gonadotropin (hCG). An important advantage of GnRHa use in OD is that it significantly decreases the risk of ovarian hyperstimulation syndrome (OHSS) due to its luteolytic effect, important in cases of oocyte donors. Objectives: To compare proportion of oocytes obtained, oocyte/embryo  quality, reproductive result and OHSS incidence in consecutive oocyte donation cycles when OD was done with hCG or GnRHa. Cycles with preimplantation genetic diagnosis were compared. Design: Cohort retrospective study. Setting: Grupo PRANOR, Clinica Concebir, Lima, Peru. Participants: Oocyte donors and receptors. Interventions: A GnRHant protocol was used in 43 oocyte donors for 203 consecutive stimulation cycles and OD with hCG (n=127) or GnRHa (n=76) based...

The GnRH antagonists (GnRHant) protocol has allowed the use of GnRH agonist (GnRHa) as inductor of ovulatory discharge (OD) replacing human chorionic gonadotropin (hCG). An important advantage of GnRHa use in OD is that it significantly decreases the risk of ovarian hyperstimulation syndrome (OHSS) due to its luteolytic effect, important in cases of oocyte donors. Objectives: To compare proportion of oocytes obtained, oocyte/embryo  quality, reproductive result and OHSS incidence in consecutive oocyte donation cycles when OD was done with hCG or GnRHa. Cycles with preimplantation genetic diagnosis were compared. Design: Cohort retrospective study. Setting: Grupo PRANOR, Clinica Concebir, Lima, Peru. Participants: Oocyte donors and receptors. Interventions: A GnRHant protocol was used in 43 oocyte donors for 203 consecutive stimulation cycles and OD with hCG (n=127) or GnRHa (n=76) based...

Embryo selection by using morphological characteristics has been the main tool to select the best embryo to transfer in assisted reproduction technology (ART). However, embryo development is a dynamic process that cannot be monitored with conventional microscopes. The introduction of incubators with an integrated micro-camera system, denominated time-lapse incubators, has allowed to register morphological and kinetic events in human embryos, becoming useful markers for embryo selection. In this report, we present the first pregnancy in Peru using morphokinetic parameters in a time lapse incubator.

In vitro oocyte maturation is not yet considered a well-established technique in in vitro fertilization (IVF) laboratories. This is due to a lower pregnancy rates. However in the last few years, reports have shown similar pregnancy rates compared to the conventional IVF techniques. The current report describes the first baby born after an IVM treatment in combination with extended blastocyst culture in Peru.

Introduction: Preimplantational genetic studies are used to achieve a better implantation rate and live birth, as well as to decrease the abortion rate; these techniques should be evaluated. Objective: To evaluate preimplantational embryo development in donor oocyte in vitro fertilization cycles with genetic studies. Design: Retrospective cohort study. Setting: Pranor Laboratory, 2008-2013. Material: In vitro fertilization with ovodonation (IVF-OD) cycles. Interventions.: 2 077 cycles of IVF-OD were evaluated, separated in 3 cohorts: Cohort 1, cycles with embryo biopsy on day 3, by means of an incision in the zona pellucida (ZP), for excision of a blastomer (n = 527); Cohort 2, cycles with a laser incision at day 4 of embryo development, for biopsy of the trophoblast in the blastocyst stage (n = 131) and; cohort 3, FIV-OD cycles without any intervention (n = 1 419). Main outcome measures...

Background: Preimplantation genetic screening (PGS) using comparative genomics hybridization  (aCGH) and single nucleotide polymorphism (SNP) technology has become a useful tool in assisted reproduction by improving clinical outcomes. Both techniques identify aneuploidies and chromosomal rearrangement. However, SNPs with Parental Support (Natera Inc.) give extra information of the aneuploidy origin either from the sperm or the oocyte. Objectives: To determine single aneuplodies rate in human embryos obtained by assisted reproduction using single nucleotide polymorphism microarray. Design: Retrospective study. Setting: Grupo PRANOR, Sede Monterrico, and Genomics Peru, Lima, Peru. Biologic material: Human embryos. Interventions: From 2011 to 2013, 105 patients underwent IVF/ICSI with SNPs and Parental Support. In total, 429 embryos were analyzed and records were reviewed. Main outcome mea...

Background: Preimplantation genetic screening (PGS) using comparative genomics hybridization  (aCGH) and single nucleotide polymorphism (SNP) technology has become a useful tool in assisted reproduction by improving clinical outcomes. Both techniques identify aneuploidies and chromosomal rearrangement. However, SNPs with Parental Support (Natera Inc.) give extra information of the aneuploidy origin either from the sperm or the oocyte. Objectives: To determine single aneuplodies rate in human embryos obtained by assisted reproduction using single nucleotide polymorphism microarray. Design: Retrospective study. Setting: Grupo PRANOR, Sede Monterrico, and Genomics Peru, Lima, Peru. Biologic material: Human embryos. Interventions: From 2011 to 2013, 105 patients underwent IVF/ICSI with SNPs and Parental Support. In total, 429 embryos were analyzed and records were reviewed. Main outcome mea...