Journal
JOURNAL OF CLINICAL MEDICINE
Volume 12, Issue 23, Pages -Publisher
MDPI
DOI: 10.3390/jcm12237255
Keywords
cryptozoospermia; azoospermia; microdissection testicular sperm extraction
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This study aimed to compare the rates of successful sperm retrieval in patients with a prior history of cryptozoospermia and patients with non-obstructive azoospermia (NOA) using microdissection testicular sperm extraction (mTESE). The results showed that patients with cryptozoospermia had a significantly higher chance of successful mTESE compared to patients with NOA. Factors such as pathology and hormone levels were associated with the success of mTESE.
Background: Our study sought to evaluate the rates of successful sperm retrieval following microdissection testicular sperm extraction (mTESE) in patients with a prior history of cryptozoospermia, compared to patients with non-obstructive azoospermia (NOA). Methods: A retrospective chart analysis evaluating all mTESE procedures was performed from January 2004 to August 2018. Inclusion criteria involved all males >18 years of age with a diagnosis of cryptozoospermia and/or NOA that underwent a mTESE. The patient's genetic profile, hormonal profile, semen analysis, testicular volumes, pathology and comorbidities were analyzed. Results: We identified 40 patients with cryptozoospermia and 221 patients with NOA. Successful mTESE occurred in 34/40 (85%) cryptozoospermic males compared to 104/221 (48%) NOA males (p < 0.001). In univariate and multivariate analyses, patients with cryptozoospermia were more likely to undergo a successful mTESE than patients with NOA (OR 5.56 [1.79-17.29], p = 0.003; OR 5.41 [1.94-15.08], p = 0.0013), respectively. Factors that were associated with a statistically significant lower chance of successful mTESE included Sertoli-cell only pathology, pre-operative testosterone < 300 ng/dL and FSH > 7.6 mIU/mL. Conclusion: Despite patients with a history of cryptozoospermia having a significantly higher chance of a successful sperm retrieval than patients with NOA, couples should be counselled on the possibility of an unsuccessful sperm extraction, in order to optimize the pre-operative IVF planning and to manage operative expectations.
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