1. What is it? Any common name for this procedure?
TESA is a minimally invasive sperm retrieval procedure where a thin needle is inserted through the skin directly into the body of the testicle. Unlike PESA (which targets the storage tube behind the testicle), TESA pulls sperm directly from the seminiferous tubules where they are produced.
A small amount of testicular tissue and fluid is aspirated into a syringe, which is then processed in a lab to find viable sperm for ICSI (Intracytoplasmic Sperm Injection).
Common Names:
- Testicular Fine Needle Aspiration (TEFNA)
- Needle Biopsy of the Testicle
- Percutaneous Sperm Retrieval
2. Common Indications: When is it Recommended?
TESA is often the "second line" of needle-based retrieval if PESA does not yield enough sperm.
- Obstructive Azoospermia (OA): When sperm cannot be found in the epididymis (PESA) but is known to be produced in the testicle.
- Failed PESA: If the epididymis is scarred or empty.
- Non-Obstructive Azoospermia (NOA): Occasionally used as a screening tool to see if any sperm is being produced before committing to a more invasive surgery like Micro-TESE.
- Ejaculatory Disorders: For patients with spinal cord injuries or other conditions preventing natural ejaculation.
3. List of Associated Risks and Conditions
- Testicular Pain: The testicle may feel "heavy" or sore for 2–3 days.
- Intratesticular Hematoma: A small bruise or blood collection inside the testicle, which usually heals on its own.
- Infection: A rare risk localized to the scrotum or the testicle (orchitis).
- Limited Yield: Because it is a "blind" needle poke, it may miss small "pockets" of sperm production, especially in difficult cases of non-obstructive infertility.
4. List of Screening Tests and Assessment Tools
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Tool
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Purpose
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Hormone Profile (FSH)
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To predict if the testicles are actively producing sperm.
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Physical Exam
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To assess testicular volume (size); smaller testicles may require more precise retrieval methods.
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Semen Analysis
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To confirm the total absence of sperm (Azoospermia) in the ejaculate.
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Karyotyping
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Genetic testing to rule out conditions like Klinefelter Syndrome.
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5. Am I Eligible for This Evaluation?
- Confirmed Azoospermia: No sperm found in the ejaculate.
- Moderate Hormone Levels: If FSH is extremely high, a simple needle aspiration (TESA) may be less successful than a microsurgical extraction (Micro-TESE).
- No Scrotal Infection: Any active inflammation (like epididymitis) must be resolved first.
- IVF Readiness: You are currently in an IVF cycle, as TESA sperm is often best used "fresh" (though it can be frozen).
6. The Procedure Experience
- The "Passes": The surgeon may make several "passes" with the needle into different areas of the testicle to increase the chances of finding a pocket of sperm production.
- Anesthesia: Performed under local anesthesia (a numbing block to the spermatic cord) or light "twilight" sedation.
- The Lab Check: An embryologist will immediately inspect the "slurry" of tissue to look for moving sperm.
7. Days Required for Hospitalization
- Surgical Time: 15 to 30 minutes.
- In-Hospital Stay: 0 Days. This is an outpatient procedure.
- Recovery: Most return to work in 24 to 48 hours. Use of a scrotal support (jockstrap) is recommended for 3–5 days to reduce discomfort.
- Hospitalization: 0 Days.
8. Benefits of TESA
- Minimally Invasive: No scalpel or stitches are involved.
- Direct Access: It bypasses any blockages in the epididymis or vas deferens.
- Lower Cost: More affordable and less complex than open surgical extractions.
- Low Complication Rate: Since it is a fine-needle technique, the risk to the blood supply of the testicle is very low.
