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Comparison of the obturator nerve block in patients undergoing transurethral resection due to bladder tumor, technically using ultrasound guided or blinded with anatomical signs.
The primary aim of this study is to compare the success rates of ONB techniques performed with ultrasound guided or blind technique. Its secondary purpose is to compare the effect of peroperative bleeding and control cystoscopy performed in the postoperative 3rd month on the presence of recurrent tumor.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Ultrasound-guided obturator nerve block group | Active Comparator | The ultrasound probe will be placed in the middle of the tuberculum pubis and femoral artery, 5-6 cm below the inguinal ligament, and 5 mL of 0.5% bupivacaine will be injected into the anterior and posterior branches of the ON with a needle. |
|
| obtutaror nerve block with anatomical landmarks | Active Comparator | In the second group, after the patient is placed in the lithotomy position, 1.5 cm lateral tuberculum pubis and 1.5 cm caudal will be marked and needle entry will be made and 0.5% bupivacaine will be injected with 10 mL. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| obturator nerve block | Procedure | The ultrasound probe will be placed in the middle of the tuberculum pubis and femoral artery, 5-6 cm below the inguinal ligament, and 5 mL of 0.5% bupivacaine will be injected into the anterior and posterior branches of the ON with a needle. In the second group, after the patient is placed in the lithotomy position, 1.5 cm lateral tuberculum pubis and 1.5 cm caudal will be marked and needle entry will be made and 0.5% bupivacaine will be injected with 10 mL. The time elapsed until the first needle insertion and local anesthetic injection is completed will be recorded as the application time. |
| Measure | Description | Time Frame |
|---|---|---|
| Preoperative succesful obturator nerve block | peroperative adductor muscle spazm | operation time |
| Measure | Description | Time Frame |
|---|---|---|
| peroperative bleeding, Presence of recurrent tumor at postoperative 3rd month | peroperative bledding, Control by cystoscopy in the postoperative 3rd month recurrence tumor size | 3 months |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Eylem Yasar, MD | Contact | 00905332392622 | eylemtarakci@gmail.com | |
| eylem yasar | Contact | eylemtarakci@gmail.com |
| Name | Affiliation | Role |
|---|---|---|
| Eylem Yaşar | Muğla Sıtkı Koçman University | Principal Investigator |
| Ali İhsan Uysal | Mugla Sitki Kocman University Department of Anesthesia | Study Chair |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Mugla Sitki Kocman University | Recruiting | Muğla | 48000 | Turkey (Türkiye) |
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| Type | Date | Date Unknown |
|---|---|---|
| Release | Oct 3, 2023 | |
| Reset | Mar 28, 2024 | |
| Release | Apr 22, 2024 | |
| Reset | Sep 11, 2024 | |
| Release | May 5, 2025 | |
| Reset | May 19, 2025 |
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| Release Date | Unrelease Date | Unrelease Date Unknown | Reset Date | MCP Release Number |
|---|---|---|---|---|
| Oct 3, 2023 | Mar 28, 2024 | |||
| Apr 22, 2024 |
| ID | Term |
|---|---|
| D001749 | Urinary Bladder Neoplasms |
| D006470 | Hemorrhage |
| ID | Term |
|---|---|
| D014571 | Urologic Neoplasms |
| D014565 | Urogenital Neoplasms |
| D009371 | Neoplasms by Site |
| D009369 | Neoplasms |
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group 1; Ultrasound-guided obturator nerve block group 2; obturator nerve block with anatomical signs
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|
| İlker Akarken |
| Mugla Sitki Kocman University Department of Urology |
| Study Chair |
| basak altiparmak | Mugla Sitki Kocman University Department of Anesthesia | Study Chair |
| semra demirbilek | Mugla Sitki Kocman University Department of Anesthesia | Study Chair |
| Sep 11, 2024 |
| May 5, 2025 | May 19, 2025 |
| D052776 |
| Female Urogenital Diseases |
| D005261 | Female Urogenital Diseases and Pregnancy Complications |
| D000091642 | Urogenital Diseases |
| D001745 | Urinary Bladder Diseases |
| D014570 | Urologic Diseases |
| D052801 | Male Urogenital Diseases |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |