Postoperative Pulmonary Complications in Adult PNL Patients
NCT ID: NCT06462976
Last Updated: 2025-08-05
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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RECRUITING
200 participants
OBSERVATIONAL
2025-07-01
2026-04-15
Brief Summary
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Detailed Description
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Mechanical power of ventilation (MP) is the amount of energy transferred from the mechanical ventilator to the respiratory system per unit time. Although this energy is primarily used to overcome airway resistance and respiratory system compliance, some of it acts directly on lung tissue, potentially causing ventilator-induced lung injury (VILI).
Mechanical power during ventilation estimates the energy delivered to the respiratory system by integrating inspiratory pressures, tidal volume and respiratory rate into a single value. It allows physicians to evaluate adjustments made to mechanical ventilation by calculating a single value. High mechanical power value is associated with a high incidence of postoperative pulmonary complications and mortality . In short, the energy distributed to the respiratory system consists of the static composite (PEEP), the dynamic composite (driving pressure and tidal volume) and the resistive composite (the pressure required for gas flow). Because energy is equal to the pressure that causes a change in volume. The equation is as follows: MP= 0.098 × respiratory rate × tidal volume × (PEEP + ½(plateau-peep)+ (peak-plateau)). These parameters are monitored on the monitor while the patient is mechanically ventilated and placed into the equation.
After general anesthesia, some postoperative pulmonary complications may be encountered. Exposure to high mechanical force in ventilated patients during surgery has been found to be associated with an increase in postoperative pulmonary complications and acute respiratory failure. This increases the length of hospital stay and mortality. In order to prevent ventilator-related lung damage, the mechanical ventilator must be adjusted to transfer the least amount of energy per unit time to the respiratory system for each patient.
Early recognition of postoperative pulmonary complications that are likely to occur after surgery is important for rapid initiation of treatment. Incentive spirometry (triflo) can be used to make a rapid assessment of the respiratory capacity of patients. An incentive spirometer is a device that measures the volume of air drawn into the lungs during inspiration. As you breathe through an incentive spirometer, a piston inside the device rises and measures the volume of inhaled air. 1 ball is considered as 600ml, 2 balls as 900ml, and 3 balls as 1200ml flow.\]
Conditions
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Study Design
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CASE_ONLY
PROSPECTIVE
Study Groups
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supine
Which group the patients will be included in will be determined by the surgical team based on the location and number of stones. The patient's values will be recorded in that position.
mechanical power calculation
Mechanical Power= 0.098×Minute ventilation× (peak pressure - 0.5 (plato pressure-PEEP)). These parameters are monitored on the monitor while the patient is mechanically ventilated and placed into the equation
prone
Which group the patients will be included in will be determined by the surgical team based on the location and number of stones. The patient's values will be recorded in that position.
mechanical power calculation
Mechanical Power= 0.098×Minute ventilation× (peak pressure - 0.5 (plato pressure-PEEP)). These parameters are monitored on the monitor while the patient is mechanically ventilated and placed into the equation
Interventions
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mechanical power calculation
Mechanical Power= 0.098×Minute ventilation× (peak pressure - 0.5 (plato pressure-PEEP)). These parameters are monitored on the monitor while the patient is mechanically ventilated and placed into the equation
Eligibility Criteria
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Inclusion Criteria
* ASA 1-3 patient
Exclusion Criteria
* Patients with BMI\>35
* Patients with obstructive sleep apnea syndrome
* Patients with ASA 4 and above
* Pregnant patients
* Pneumonia, COPD attack etc. before the operation. people with lung disease
* Unstable patients such as uncontrolled hypertension, decompensated heart
* Mentally retarded and uncooperative patients
18 Years
75 Years
ALL
No
Sponsors
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TC Erciyes University
OTHER
Responsible Party
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Gamze Talih
Principal Investigator
Locations
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Gamze Talih
Kayseri, Kayseri, Turkey (Türkiye)
Countries
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Facility Contacts
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Other Identifiers
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2024/99
Identifier Type: -
Identifier Source: org_study_id
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