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"Second-look" Micro Testicular Sperm Extraction (MicroTESE) in Patients with Non-obstructive Azoospermia Following
Hajrudin Spahovic1, Jasmin Alic1, Ümit Göktolga2
1Urology Clinic, Clinical Center University of Sarajevo, Sarajevo, Bosnia and Herzegovina.
Introduction:
Microdissection testicular sperm extraction (microTESE) is considered the gold standard method for surgical sperm retrieval among patients with non-obstructive azoospermia (NOA).
Aim:
This study aimed to evaluate the correlation between histopathological findings after failed microTESE procedure and outcomes of the "second-look" procedure and to provide insight into the most common histopathological patterns after testicular biopsy within our population.
Methods:
The retrospective study included 33 selected patients with NOA, who had undergone unsuccessful sperm retrieval. The diagnosis of NOA was made after the assessment of the patient's history data, a physical examination, semen analysis, the hormonal profile, and genetic studies. After negative sperm retrieval, histopathological report has been analyzed for "second-look" microTESE attempt.
Results:
Five testicular histopathological patterns were found: hypospermatogenesis (9,1%), Sertoli cell-only syndrome (43%), germ cell maturation arrest (15%), seminiferous tubule hyalinization (15%), mixed pattern (21%). Y-microdeletions were detected in 5 patients, of which 3 patients showed AZFc region deletions. Only 3 patients (9,1%) underwent a "second-look" procedure after the evaluation of histopathological reports. After the stimulation therapy and "second-look" procedure, we had a positive outcome in a single patient (33,3%). Mean FSH value in patients with confirmed spermatogenesis was 17.26±3.11IU/l, while mean FSH value in patients without presence or germ cell statistically significantly exceeded and was 24.28±4.71IU/L (p=0.038).
Conclusion:
Histopathological reports following the microTESE procedure are obligatory for the proper selection of patients who are candidates for the "second-look" microTESE attempt. Patients with Sertoli cell-only syndrome and hypospermatogenesis particularly can benefit from the "second-look" procedure.
