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Efficacy of Ultrasound-Guided Erector Spinae Block for Postoperative Pain Management in Nephrectomy

24 aprile 2026 aggiornato da: Kazi Mahzabin Arin, Bangladesh Medical University

Efficacy of Ultrasound-Guided Erector Spinae Plane Block in Postoperative Pain Management in Nephrectomy: A Randomized Controlled Trial

This clinical trial aims to evaluate the effectiveness of the ultrasound-guided erector spinae plane (ESP) block in managing postoperative pain for patients undergoing open nephrectomy (kidney removal surgery). The study will compare this new technique to traditional pain management methods, such as opioid medications, to assess whether the ESP block reduces pain and the need for opioids after surgery.

Patients will be randomly assigned to one of two groups:

Group C will receive conventional pain relief methods, including opioids. Group E will receive the ultrasound-guided ESP block in addition to general anesthesia.

The main goals are to determine:

How much pain relief each method provides, measured using a visual analog scale (VAS).

The total amount of opioids required during the first 24 hours post-surgery.

Additional measurements will include monitoring vital signs like heart rate, blood pressure, and oxygen levels.

This study will help find safer and more effective ways to manage pain after nephrectomy, reducing the reliance on opioids and improving patient recovery

Panoramica dello studio

Stato

Reclutamento

Condizioni

Intervento / Trattamento

Descrizione dettagliata

This randomized controlled trial aims to assess the efficacy of ultrasound-guided erector spinae plane (ESP) block in managing postoperative pain in patients undergoing open nephrectomy. Nephrectomy, a common procedure for kidney removal, often results in severe postoperative pain, which can contribute to complications such as postoperative pulmonary complications (PPC) and delayed recovery. Traditional analgesic techniques, including systemic opioids and epidural analgesia, have various side effects such as nausea, vomiting, constipation, and respiratory depression. Additionally, opioids may lead to tolerance, especially in cancer patients. Erector spinae plane block (ESP) is a newer regional technique that has gained attention due to its potential to provide effective analgesia with minimal side effects.

This study will evaluate whether the ESP block can provide better pain control and reduce opioid consumption compared to conventional pain management techniques. The ESP block targets the erector spinae muscle and provides analgesia via fascial plane blocks, which is believed to be effective in controlling visceral and somatic pain, typically associated with nephrectomy.

The trial will involve 66 adult patients scheduled for open nephrectomy under general anesthesia. Patients will be randomly assigned to one of two groups:

Control Group (Group C): Patients will receive conventional analgesia, including opioids and standard local anesthetic techniques.

Intervention Group (Group E): Patients will receive general anesthesia combined with the ultrasound-guided ESP block, administered immediately before anesthesia induction.

The primary outcome of the trial is to measure the first postoperative opioid requirement, utilizing the Visual Analogue Scale (VAS) for pain assessment. Secondary outcomes include the total opioid consumption in the first 24 hours, the intensity of postoperative pain at various time points, and the hemodynamic responses (heart rate, blood pressure). Additionally, peak expiratory flow rate (PEFR) will be monitored to assess respiratory function as part of the recovery process.

By evaluating these outcomes, the study aims to provide insights into whether ESP block can serve as a safer, effective alternative to traditional analgesia, improving postoperative pain management and reducing the risks associated with opioid use. The results may guide clinical practice in nephrectomy pain management, offering a potential improvement in patient recovery times and satisfaction.

Tipo di studio

Interventistico

Iscrizione (Stimato)

66

Fase

  • Non applicabile

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Contatto studio

Backup dei contatti dello studio

Luoghi di studio

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

  • Adulto

Accetta volontari sani

No

Descrizione

Inclusion Criteria:

  • Adult patients aged 18 to 64 years
  • Scheduled for open nephrectomy (radical or partial) under general anesthesia
  • ASA physical status I-II (American Society of Anesthesiologists classification)

Exclusion Criteria:

  • Allergy to local anesthetics.
  • Local infection or inflammation at the site of the Block placement.
  • Presence of anatomical deformities in the spine
  • Coagulopathy or any bleeding disorder.
  • Pregnancy or breastfeeding women.
  • History of severe chronic pain syndrome

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Separare

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Nessun intervento: Control Group: Conventional Pain Management
This group will receive general anesthesia along with conventional pain management techniques, including opioid analgesics and other standard interventions typically used in postoperative nephrectomy care
Sperimentale: Intervention Group: Ultrasound-Guided Erector Spinae Plane Block
Patients in this group will receive general anesthesia in combination with the ultrasound-guided erector spinae plane (ESP) block, administered before the induction of anesthesia. The block targets the erector spinae muscle fascial plane, aiming to reduce postoperative pain and opioid consumption.
The Ultrasound-Guided Erector Spinae Plane (ESP) Block is a regional anesthesia technique used to provide postoperative pain relief. In this study, the intervention involves the administration of a local anesthetic (0.25% bupivacaine) into the fascial plane between the erector spinae muscle and the transverse process of the vertebra using ultrasound guidance. The procedure is performed immediately before the induction of general anesthesia in patients undergoing open nephrectomy. The goal of the ESP block is to reduce postoperative pain, minimize opioid consumption, and improve recovery outcomes while maintaining hemodynamic stability. This intervention is compared to conventional pain management methods, which primarily rely on systemic opioids and other standard analgesics.

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Visual Analogue Scale (VAS) for pain
Lasso di tempo: VAS score will be The VAS score will be recorded within the first 24 hours after surgery upon the patient's arrival in recovery, at 1, 3, 6,12 and 24 hours.

VAS score measures the intensity of pain, with 0 indicating no pain and 10 indicating the worst possible pain.

A lower VAS score means less pain and better pain management. A higher VAS score means more pain and poorer pain control.

VAS score will be The VAS score will be recorded within the first 24 hours after surgery upon the patient's arrival in recovery, at 1, 3, 6,12 and 24 hours.

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Total Opioid Consumption
Lasso di tempo: Total opioid consumption will be calculated and recorded in mg within the first 24 hours postoperatively.
Total opioid consumption will be tracked and recorded for each group during the first 24 hours post-surgery. The total amount of opioids used (in milligrams) will serve as an indicator of pain control effectiveness. A reduction in opioid consumption in the ESP block group, compared to the control group, would suggest that the ESP block is effective in reducing the need for opioids, thereby minimizing opioid-related side effects.
Total opioid consumption will be calculated and recorded in mg within the first 24 hours postoperatively.
Peak Expiratory Flow Rate (PEFR)
Lasso di tempo: PEFR values will be assessed preoperatively and at arrival to 1, 3, 6, and 24 hours postoperatively.
PEFR will be measured preoperatively and at multiple points postoperatively (1, 3, 6, and 24 hours) to assess respiratory function. This is particularly important in nephrectomy patients, as effective pain management helps promote better respiratory outcomes and reduce the risk of atelectasis or other complications. A higher PEFR value suggests better lung function and recovery.
PEFR values will be assessed preoperatively and at arrival to 1, 3, 6, and 24 hours postoperatively.
Heart Rate (HR) Monitoring
Lasso di tempo: Heart rate (HR) will be measured preoperatively and at 0, 1, 3, 6, 12, and 24 hours postoperatively.
Heart rate (HR) will be monitored preoperatively and at regular intervals postoperatively (0, 1, 3, 6, 12, 24 hours). This will help assess whether the ESP block maintains hemodynamic stability without causing significant fluctuations, such as tachycardia (increased heart rate), compared to conventional analgesia methods.
Heart rate (HR) will be measured preoperatively and at 0, 1, 3, 6, 12, and 24 hours postoperatively.
Systolic Blood Pressure (SBP) Monitoring in mmHg
Lasso di tempo: Systolic blood pressure (SBP) will be measured preoperatively and at 0, 1, 3, 6, 12, and 24 hours postoperatively.
Systolic blood pressure (SBP) will be recorded preoperatively and at regular intervals (0, 1, 3, 6, 12, and 24 hours) postoperatively. The aim is to evaluate whether the ESP block offers better hemodynamic control by preventing significant blood pressure fluctuations compared to conventional analgesia methods.
Systolic blood pressure (SBP) will be measured preoperatively and at 0, 1, 3, 6, 12, and 24 hours postoperatively.
Diastolic Blood Pressure (DBP) Monitoring in mmHg
Lasso di tempo: Diastolic blood pressure (DBP) will be measured preoperatively and at 0, 1, 3, 6, 12, and 24 hours postoperatively.
Diastolic blood pressure (DBP) will be measured preoperatively and at regular intervals postoperatively (0, 1, 3, 6, 12, 24 hours). Monitoring DBP helps assess the stability of the cardiovascular system and ensure that the ESP block does not lead to significant hypotension or other adverse effects on circulation.
Diastolic blood pressure (DBP) will be measured preoperatively and at 0, 1, 3, 6, 12, and 24 hours postoperatively.
Mean Arterial Pressure (MAP) Monitoring in mmHg
Lasso di tempo: Mean arterial pressure (MAP) will be measured preoperatively and at 0, 1, 3, 6, 12, and 24 hours postoperatively.
Mean arterial pressure (MAP) will be monitored preoperatively and at regular intervals postoperatively (0, 1, 3, 6, 12, 24 hours). MAP is a key indicator of perfusion pressure, ensuring adequate blood flow to organs. This outcome will evaluate whether the ESP block maintains stable MAP levels compared to conventional analgesic methods.
Mean arterial pressure (MAP) will be measured preoperatively and at 0, 1, 3, 6, 12, and 24 hours postoperatively.

Collaboratori e investigatori

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Sponsor

Investigatori

  • Direttore dello studio: AKM Akhtaruzzaman, MD, Bangladesh Medical University

Pubblicazioni e link utili

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Pubblicazioni generali

Collegamenti utili

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Effettivo)

1 settembre 2025

Completamento primario (Stimato)

30 giugno 2026

Completamento dello studio (Stimato)

30 luglio 2026

Date di iscrizione allo studio

Primo inviato

24 aprile 2026

Primo inviato che soddisfa i criteri di controllo qualità

24 aprile 2026

Primo Inserito (Effettivo)

1 maggio 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

1 maggio 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

24 aprile 2026

Ultimo verificato

1 aprile 2026

Maggiori informazioni

Termini relativi a questo studio

Altri numeri di identificazione dello studio

  • BSMMU/2025/2025

Piano per i dati dei singoli partecipanti (IPD)

Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?

NO

Dati/documenti di studio

  1. Protocollo di studio
    Identificatore informazioni: pain.medicine@bsmmu.edu.bd

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

prodotto fabbricato ed esportato dagli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .