Penile LengthNCT07580807
Penile Length After Spinal Anesthesia vs General Anesthesia for Cystoscope in Adults
A study testing Spinal anesthesia and General anesthesia in people with Penile Length and Spinal Anesthesia, run by Tanta University at 1 site in Egypt.
Trial summary
This research aimed to explore the impact of spinal and general anesthesia on penile length during surgery. Read more about this study
- Who is it for?
- Ages 21 years and older, men only
- Conditions the study is for
- Penile Length, Spinal Anesthesia, General Anesthesia
- What is being tested?
- Spinal anesthesia and General anesthesia
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 200 participants
- Where
- 1 siteEgypt
- Study dates
- 1 Mar 2025to 1 Mar 2026
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 21 years and older
- Men only
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Adult male patients aged 21 years or older.
- Patients scheduled for elective urological surgeries including transurethral resection of the prostate (TURP) or transurethral resection of bladder tumor (TURT).
- Patients who provided written informed consent for participation in the study.
Who cannot join
- Presence of a history of erectile dysfunction, penile deformities, or any urological conditions that could affect penile size.
- Undergoing emergency surgeries or procedures that required alternative anesthetic techniques.
- Known allergies or hypersensitivity to either spinal or general anesthesia.
- Inability or unwillingness to provide informed consent.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Penile Length After Spinal Anesthesia vs General Anesthesia for Cystoscope in Adults, Prospective Randomized Comparative Study
This research aimed to explore the impact of spinal and general anesthesia on penile length during surgery.
Read the detailed description
Penile length and erectile function are complex physiological processes influenced by an interplay of neural, vascular, and hormonal factors. The process of penile erection involves the relaxation of smooth muscles in the corpora cavernosa, leading to increased blood flow and penile engorgement.
Erectile dysfunction (ED), a prevalent condition in men, has been associated with numerous risk factors such as age, cardiovascular disease, diabetes, and spinal cord injury.
- Conditions
- Penile Length, Spinal Anesthesia, General Anesthesia, Cystoscope, Adults
- Being tested
- Spinal anesthesia, General anesthesia
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Spinal anesthesiaProcedure or surgery
Patients who underwent surgery under spinal anesthesia.
General anesthesiaProcedure or surgery
Patients who underwent surgery under general anesthesia.
| Study group | Role | What they receive |
|---|---|---|
| Group A | Experimental | Patients who underwent surgery under spinal anesthesia. Receives: Procedure: Spinal anesthesia |
| Group B | Experimental | Patients who underwent surgery under general anesthesia. Receives: Procedure: General anesthesia |
What is being measured
The primary outcome is the main question the study is designed to answer.
Penile length
Penile length was measured.
Measured: 20 minutes after anesthesia
Secondary outcomes (1)
Surgeon satisfaction
The operating surgeon was asked to rate satisfaction with operative conditions related to penile size and accessibility using a structured 3-point ordinal scale:
- Unsatisfied - Surgical exposure was insufficient; procedure was significantly hindered.
- Hardly satisfied - Procedure was completed with difficulty due to altered penile length or engorgement.
- Satisfied - No intraoperative difficulty attributable to penile size or exposure.
Measured: At the end of the procedure (Up to 2 hours)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted12 May 2026
- Study start1 Mar 2025
- Primary completion1 Mar 2026
- Study completion1 Mar 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Penile LengthStudies of the same condition, open and under way.
- More trials run by Tanta UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 200 participants (actual)
Sponsor and investigators
- Lead sponsor
- Tanta University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Hossam Eldeen Osama Darwesh, Tanta University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07580807
- Sponsor's protocol ID
- 36264MS814/1/25
- Status last verified
- May 2026
- First submitted
- 5 May 2026
- Last updated
- 12 May 2026
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: The data will be available upon a reasonable request from the corresponding author after the end of study for one year.
Study at a glance
From the registry record, last updated by the sponsor on 12 May 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Penile Length After Spinal Anesthesia vs General Anesthesia for Cystoscope in Adults, Prospective Randomized Comparative Study
- ClinicalTrials.gov ID
- NCT07580807
- Acronym / sponsor ID
- 36264MS814/1/25
- Conditions
- Penile Length, Spinal Anesthesia, General Anesthesia, Cystoscope, Adults
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 200 participants (actual)
- Lead sponsor
- Tanta UniversityUniversity, hospital or other
- Study start
- 1 Mar 2025 (actual)
- Primary completion
- 1 Mar 2026 (actual)
- Study completion
- 1 Mar 2026 (actual)
- First posted
- 12 May 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This research aimed to explore the impact of spinal and general anesthesia on penile length during surgery.
Detailed description
Penile length and erectile function are complex physiological processes influenced by an interplay of neural, vascular, and hormonal factors. The process of penile erection involves the relaxation of smooth muscles in the corpora cavernosa, leading to increased blood flow and penile engorgement.
Erectile dysfunction (ED), a prevalent condition in men, has been associated with numerous risk factors such as age, cardiovascular disease, diabetes, and spinal cord injury.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Group A | Experimental | Procedure: Spinal anesthesiaPatients who underwent surgery under spinal anesthesia. |
| Group B | Experimental | Procedure: General anesthesiaPatients who underwent surgery under general anesthesia. |
Who may qualify
- Ages
- 21 years and older
- Sex
- Male only
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Adult male patients aged 21 years or older.
- Patients scheduled for elective urological surgeries including transurethral resection of the prostate (TURP) or transurethral resection of bladder tumor (TURT).
- Patients who provided written informed consent for participation in the study.
Key exclusion criteria (4 listed)
- Presence of a history of erectile dysfunction, penile deformities, or any urological conditions that could affect penile size.
- Undergoing emergency surgeries or procedures that required alternative anesthetic techniques.
- Known allergies or hypersensitivity to either spinal or general anesthesia.
- Inability or unwillingness to provide informed consent.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Spinal anesthesiaPatients who underwent surgery under spinal anesthesia. | Procedure or surgery | Group A |
| General anesthesiaPatients who underwent surgery under general anesthesia. | Procedure or surgery | Group B |
Primary outcome
Penile length
Time frame: 20 minutes after anesthesia
Penile length was measured.
1 secondary outcome
Surgeon satisfaction
Time frame: At the end of the procedure (Up to 2 hours)
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 12 May 2026.
- Individual participant dataSharing planned: Yes. The data will be available upon a reasonable request from the corresponding author after the end of study for one year.
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Spinal anesthesia and General anesthesia in people with Penile Length and Spinal Anesthesia, run by Tanta University at 1 site in Egypt.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 12 May 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Egypt. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Penile length (time frame: 20 minutes after anesthesia). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 12 May 2026; AzTrials last refreshed its copy on 6 Nov 2026.