Comparison of the effect of the obturator nerve block with ultrasound guidance on adductor muscle spasm between two methods of spinal anesthesia and general anesthesia in bladder tumor resection surgery

Comparing the preventive effect of ultrasound guided obturator nerve block in adductor muscle spasm under spinal anesthesia with general anesthesia in trans urethral bladder tumor resection

Status

Recruiting

Phases

Phase 3

Study type

Interventional

Source

IRCT

Registry ID

IRCT20170516033992N16

Enrollment

Registered

2024-11-14

Start date

2024-12-21

Completion date

Unknown

Last updated

2025-01-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Bladder tumor. Malignant neoplasm of bladder, unspecified

Interventions

Intervention 1: Intervention group: After the obturator nerve block , in one group general anesthesia will be induced without the use of muscle relaxants using 1-2 µg/kg of fentanyl and 2 mg/kg of Pr

Eligibility

Sex/Gender

All

Age

40 Years to No maximum

Inclusion criteria

Inclusion criteria: Patients who are candidates for bladder tumor resection through the duct Age over 40 years Deep bladder tumor with muscle invasion

Exclusion criteria

Exclusion criteria: Patients with advanced respiratory diseases Cardiovascular disease Diabetes Peripheral neuropathy Previous pelvic or inguinal surgery Hematological disorders Obstructive neuropathy Inguinal lymphadenopathy Allergy to local anesthesia Perineal infection or hematoma at the needle insertion site

Design outcomes

Primary

Measure	Time frame
Adductor spasm frequency. Timepoint: During surgery. Method of measurement: Surgeon's statement.;Intensity of adductor muscle spasm response. Timepoint: During surgery. Method of measurement: The surgeon's statement as mild, moderate and severe.	—

Secondary

Measure	Time frame
The degree of satisfaction of the surgeon with the adductor muscle spasm response. Timepoint: During surgery. Method of measurement: Surgeon's statement as excellent, good, moderate, poor.;Mean arterial pressure. Timepoint: Before and at the end of surgery. Method of measurement: Monitoring device.;Heart rate. Timepoint: Before and at the end of surgery. Method of measurement: Monitoring device.;Duration of surgery. Timepoint: At the end of surgery. Method of measurement: Clock.	—

Measure

Time frame

The degree of satisfaction of the surgeon with the adductor muscle spasm response. Timepoint: During surgery. Method of measurement: Surgeon's statement as excellent, good, moderate, poor.;Mean arterial pressure. Timepoint: Before and at the end of surgery. Method of measurement: Monitoring device.;Heart rate. Timepoint: Before and at the end of surgery. Method of measurement: Monitoring device.;Duration of surgery. Timepoint: At the end of surgery. Method of measurement: Clock.

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Countries

Iran (Islamic Republic of)

Contacts

Public ContactDr. Tohid Karami

Oroumia University of Medical Sciences

karami.t@umsu.ac.ir+98 44 3345 7286

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026