Comparison of Hemodynamic Stability and Pain Control

Isfahan University of Medical Sciences50 enrolled

Overview

This study was designed to evaluate whether patient position (lateral vs. prone) has affect on the need for analgesia and onset of pain after surgery.

Percutaneous Nephrolithotomy is the preferred surgical treatment in many cases of kidney stones which is performed in different positions such as prone, lateral, and supine. However, we do not have enough evidence comparing prone and lateral positioning regarding the need for analgesia and onset of pain after surgery. This study was designed to evaluate whether patient position (lateral vs. prone) has affect on the need for analgesia and onset of pain after surgery.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

PREVENTION

Masking

SINGLE

Enrollment

Conditions

Percutaneous Nephrolithotomy

Interventions

PainDIAGNOSTIC_TEST

Patient's pain in order to VAS

Hemodynamic changesDIAGNOSTIC_TEST

changes in hemodynamic states

Eligibility

Sex: ALLMin age: 18 YearsMax age: 65 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * Inclusion criteria were age between 18-65 years, * having kidney stones; consent for spinal anesthesia, * ASA classes (American Society of Anesthesiologists class) of 1 and 2 (patients without any cardiovascular or respiratory disorders) * superior and median ureter larger than 20 mm in diameter. Exclusion Criteria: * those with coagulation defects, * severe pain requiring more than one dose of fentanyl, * considerable rise of blood pressure or heart rate during the operation.

Outcomes

Primary Outcomes

pain intensity in VAS score and need for analgesics in milligram

determining pain with visual analogue scale (VAS) and need for analgesics (milligram) in lateral versus prone position. The visual analogue scale (VAS) is usually presented as a 100-mm horizontal line on which the patient's pain intensity is represented by a point between the extremes of "no pain at all" and "worst pain imaginable." Its simplicity, reliability, and validity, as well as its ratio scale properties, make the VAS the optimal tool for describing pain severity or intensity.

Time frame: at one year after surgery

Secondary Outcomes

hemodynamic state

changes in blood pressure

Time frame: at one year after surgery

Data from ClinicalTrials.gov

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