The latter technique has proved to be less deleterious for the embryo, therefore it is advisable to perform the biopsy around day 5 or 6 of development. Sex selection is the attempt to control the sex of offspring to achieve a desired sex in case of X chromosome linked diseases. It can be accomplished in several ways, both pre- and post-implantation of an embryo, as well as at birth. Pre-implantation techniques include PGD, but also sperm sorting. Others
Other assisted reproduction techniques include:

Mitochondrial replacement therapy (MRT, sometimes called mitochondrial donation) is the replacement of mitochondria in one or more cells to prevent or ameliorate disease. MRT originated as a special form of IVF in which some or all of the future babys mitochondrial DNA comes from a third party. This technique is used in cases when mothers carry genes for mitochondrial diseases. The therapy is approved for use in the United Kingdom. In gamete intrafallopian transfer (GIFT) a mixture of sperm and eggs is placed directly into a womans fallopian tubes using laparoscopy following a transvaginal ovum retrieval. Reproductive surgery, treating e.g. fallopian tube obstruction and vas deferens obstruction, or reversing a vasectomy by a reverse vasectomy. In surgical sperm retrieval (SSR) the reproductive urologist obtains sperm from the vas deferens, epididymis or directly from the testis in a short outpatient procedure. By cryopreservation, eggs, sperm and reproductive tissue can be preserved for later IVF. Risks
The majority of IVF-conceived infants do not have birth defects.
Fistulas between the spinal canal and colon have to be operated on directly.Early diagnosis and multidisciplinary assessment is recommended to plan adequate treatment.By accurate evaluation, the correct surgical management, including neurosurgery, can be performed in a single-stage approach.The management of Currarino syndrome is similar to the usual management of anorectal malformation (ARM) regarding the surgical approach and probably the prognosis, which mainly depends on degree of associated sacral dysplasia.Neurosurgeons are involved in the surgical treatment of anterior meningoceles, which are often associated with this condition. The accepted surgical treatment is an anterior or posterior or a staged anterior-posterior resection of the presacral mass and obliteration of the anterior meningocele. Posterior approach
A posterior procedure via lumbar and sacral partial laminectomy-laminoplasty and transdural ligation of the neck of the meningocele is used for anterior sacral meningoceles; alternatively, tumor excision is used for other types of presacral lesions.Endoscopic or endoscope-assisted surgery via a posterior sacral route can be feasible for treatment of some patients with anterior sacral meningocele. Anterior meningocele pouch associated with Currarino syndrome will regresses over time following transdural ligation of its neck. See also
Imperforate anus

References

currarino_syndrome_treatment [Operative Neurosurgery]


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