About this trial
In our study, we assess the diaphragmatic function, pain quality and anti-inflammatory properties between low dose infusion of dexmedetomidine normal saline in patients with multiple fracture ribs on conservative treatment.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Adults (age 18-65 years) of American Society of Anaesthesiologists (ASA) physical status I-II
Traumatic multiple fracture ribs 3 ribs or more, who will be subjected to thorough assessments including chest 3D-CT
Undergoing conservative treatment (chest strappings)
Intractable pain with visual analogue scale (VAS) over 6 after traditional therapies
Disqualifiers
Multiple traumas to body parts other than chest with an abbreviated injury scale over 3
Serious head trauma with a Glasgow coma scale lower than 13
Mechanically ventilated patients
Massive hemothorax
Trial design
Parallel
Treatments tested in this trial
Dexmedetomidine
Druglow dose dexmedetomidine infusion 0.2 µ/kg/hour IV for 5 days.
0.9% saline
Other interventionthe same dose and duration of normal saline will be given for 5 days.
Treatment groups
Trial outcomes
Primary outcomes
Ultrasonographic diaphragm function
Diaphragmatic excursion and thickness will be assessed by ultasound for 5 days with diaphragmatic dysfunction (DD) is diagnosed if diaphragmatic excursion is \<10 mm and diaphragmatic thickness is \<2 mm. .
Secondary outcomes
Visual analogue scale for pain
Severity of pain will be assessed and scored by 10-point visual analogue scale (VAS). The patients will be instructed on how to use VAS for the assessment of the degree of pain (with 0 representing no pain and 10 cm representing the worst imaginable pain). According to the degree pain given by the patient, classification of pain severity will be done as follows: no pain = 0, mild pain \<3, moderate pain 4-6 and severe pain \>7. VAS will be recorded at zero time before drug intervention, 4 h, 6 h, 12 h, 24 h and 48 h after the start of the treatment in all groups by the anesthesia resident not involved in any other part of the study.
Other outcomes
Neutrophil/lymphocyte ratio (NLR)
From complete blood picture, neutrophil/lymphocyte ratio is measured to assess anti-inflammatory properties of the study drugs daily for 3 days.
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