Modern medicine would not be complete without interventional radiological techniques, which provide non-invasive ways to diagnose and treat a broad variety of medical issues. Despite the benefits, patients may experience considerable pain and discomfort during these treatments; thus, efficient analgesic techniques are necessary to guarantee their compliance and the effectiveness of the surgery [1-3].

Pain control during interventional procedures, especially those that are difficult or take a long time, has traditionally been handled by administering general anesthesia (GA). Although general anaesthesia (GA) offers full pain relief and immobility, it comes with certain dangers including hypoxia, hemodynamic instability, slow recovery, and higher use of medical resources. Because of these restrictions, researchers are looking at other methods that may give strong analgesia with less side effects [4, 5].
The use of ultrasound-guided nerve blocks (UGNB) has become more important in regional anesthesia due to the accuracy with which they can localize nerves and apply anesthetic drugs to specific areas. More effective analgesic effects, less systemic drug exposure, quicker recovery, and fewer problems are just a few of the benefits of this method. An increasing number of procedural settings are utilizing nerve blocks, which are made more accurate and safer with the use of ultrasonography [6-8].
The utilization of ultrasonic-guided nerve blocks has grown in interventional radiology due to recent developments in regional anesthesia. As an alternative to general anesthesia, these blocks can keep patients alert while yet providing enough pain relief. Shorter hospital stays and more patient satisfaction may also be their result [9].

However, there is a lack of conclusive evidence comparing the efficacy of general anesthesia with ultrasound-guided nerve blocks for interventional radiological treatments. It was for this reason that the current research set out to compare and contrast general anesthesia with ultrasound-guided nerve blocks as a means of pain management for patients having interventional radiological treatments [10, 11].

This prospective comparative study was conducted to evaluate the effectiveness of ultrasound-guided nerve blocks (UGNB) versus general anesthesia (GA) for pain management during interventional radiological procedures. This study was conducted at department of Radiology, Fathima Institute of Medical Sciences, Ramarajupalli Village, Kadapa, Y.S.R. District, Andhra Pradesh, Between December 2020 to November 2021. A total of 40 patients scheduled for elective interventional radiological procedures were included and randomly allocated into two groups: Group A (n=20) received ultrasound-guided nerve blocks, and Group B (n=20) received general anesthesia. All patients underwent pre-procedural evaluation, including clinical examination and baseline investigations. Procedure: In Group A, ultrasound-guided nerve blocks were performed utilizing a high-frequency linear ultrasound probe to locate the target nerve or plexus. A local anesthetic agent, such as bupivacaine or ropivacaine, was administered under real-time ultrasound guidance to guarantee accurate delivery and effective analgesia. sedation was administered when required. In Group B, patients underwent general anesthesia according to established protocols, which involved induction with intravenous anesthetics and maintenance with either inhalational or intravenous drugs. Airway management was conducted with suitable devices, and patients were continuously observed during the surgery. Intraoperative pain was evaluated using the Visual Analog Scale (VAS), whereas postoperative discomfort, recovery duration, requirement for supplementary analgesia, and any complications were documented. Inclusion Criteria: ● Patients aged 18–65 years undergoing elective interventional radiological procedures ● Patients classified as ASA physical status I–III ● Patients willing to provide informed consent ● Patients suitable for either regional or general anesthesia Exclusion Criteria: ● Patients with contraindications to nerve block ● Patients with allergy to local anesthetics ● Patients with severe systemic illness ● Patients with neurological disorders affecting pain perception ● Patients unwilling or unable to provide consent Statistical Analysis: Data were collected and analyzed using appropriate statistical software. Continuous variables were expressed as mean ± standard deviation, and categorical variables were presented as frequencies and percentages. Comparisons between the two groups were performed using independent t-test for continuous variables and chi-square test for categorical variables. A p-value of <0.05 was considered statistically significant.

A total of 40 patients undergoing interventional radiological procedures were included in the study and divided equally into two groups: ultrasound-guided nerve block (UGNB) group and general anesthesia (GA) group. The outcomes were assessed in terms of demographic characteristics, pain scores, recovery time, analgesic requirement, and complications.

Table 1: Demographic Characteristics of Patients

Table 1 reveals that the two groups are well-matched in terms of demographics, with no discernible difference in the distribution of age or gender.

Table 2: Intraoperative Pain Scores (VAS)

The results of the intraoperative pain scores show that the UGNB group had better pain control using ultrasound-guided nerve blocks compared to the GA group (Table 2).

Table 3: Postoperative Pain Scores (VAS)

According to Table 3, the UGNB group reported considerably less pain 6 and 24 hours after the operation, indicating that the nerve blocks had a longer-lasting analgesic effect.

Table 4: Recovery Time and Analgesic Requirement

Patients in the UGNB group needed fewer extra analgesics and had considerably quicker recovery durations compared to the GA group (Table 4).

Table 5: Complications Observed

According to Table 5, the UGNB group had a lower complication incidence than the GA group. Patients being administered general anesthesia had a higher incidence of common problems such nausea, respiratory depression, and hypotension.

The study found that compared to general anesthesia (GA), ultrasound-guided nerve blocks (UGNB) achieved better results in pain control, recovery profile, and complication rates when used to manage pain during interventional radiological procedures [12]. Results showed that UGNB patients reported far less pain during and after surgery than GA patients. Previous research has demonstrated that ultrasonic-guided nerve blocks can effectively reduce pain by cutting off nerve transmission precisely where it is felt. The results of this study corroborate these findings and demonstrate that UGNB is effective in managing discomfort during procedures [13-15]. Recovery time was much shorter for patients who received UGNB in this study as compared to those who underwent general anesthesia. Reducing sedation-related effects and avoiding systemic anesthetic drugs are two reasons why regional treatments have been linked to speedier recovery in prior research [16]. In the field of interventional radiology, where shorter hospital stays and quick turnover are priorities, an early recovery is very helpful. Additional postoperative analgesia was not needed as much by the UGNB group in this trial. Studies have shown that the local anesthetics used in nerve blocks have long-lasting analgesic effects, meaning that patients continue to feel less pain even after the surgery is over. Because of this, systemic analgesics with all of their negative side effects are less necessary [17, 18]. Nasal and vomiting infections, respiratory depression, and low blood pressure were more common in the GA group compared to the other groups in this research. The use of sedatives, opioids, and airway treatments causes these problems, which have previously been linked to general anesthesia. It is clear that regional anesthetic procedures are safe, as the UGNB group had a lower complication rate. Utilizing ultrasound guidance improves the precision and security of nerve block injections by providing live imaging of target areas and the positioning of needles. Since a result, UGNB is a safe substitute for general anesthesia in selected patients, since it increases the success rate of blocks while decreasing the risk of complications [19-21]. There are a few caveats to this study that should be considered. One is the small sample size. Another is that it includes a variety of interventional treatments, which could affect how people perceive pain. Expertise of the operator administering the nerve blocks may also have an impact. As a safer and more effective alternative to general anesthesia, ultrasound-guided nerve blocks can be used to manage pain during interventional radiological procedures. This technique is especially useful for certain patient populations that want a quick recovery with few complications [22-24].

This study shows that compared to general anesthesia, ultrasound-guided nerve blocks are better for controlling pain during IR procedures. Patients who received UGNB had far less discomfort during and after surgery, and they needed fewer pain medications overall. Additional benefits of UGNB include reduced rates of anesthesia-related problems including nausea, respiratory depression, and hemodynamic instability, as well as quicker recovery periods. These benefits demonstrate the efficacy and security of regional anesthetic procedures guided by ultrasonography. When it comes to interventional radiology procedures, ultrasound-guided nerve blocks are a safe and effective substitute for general anesthesia that can improve patient outcomes and process efficiency.

Funding

None

Conflict of Interest:

None

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