4th Pediatric Infectious Diseases Conference
 
 
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FIND DIAGNOSIS
FIND DIAGNOSIS
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Pedi Poll
Today's Poll
Should teicoplannin, colistin be used in case of neonatal sepsis where culture does not reveal any organism_?
No, it should be used only after drug sensitivity report
Yes, under guidance of an infectious disease expert
PRACTICAL GUIDELINES FOR MECHANICAL VENTILATION
PRACTICAL GUIDELINES FOR MECHANICAL VENTILATION
Ventilation Strategies
Ventilation Strategies
Giuseppe A. Marraro, MD
Director
Department of Anesthesia and Intensive Care
Pediatric Intensive Care Unit
Fatebenefratelli and Ophthalmiatric Hospital
Milano Italy


Correspondence:
Corso Porta Nuova 23 - I 20121, Milano, Italy. E-Mail gmarraro@picu.it

VENTILATION STRATEGIES:

Mechanical ventilation can be applied both invasively or non-invasively in the following ways:

  1. Assisted spontaneous breathing: Continuous Positive Airway Pressure (CPAP)

  2. Supported spontaneous breathing: Pressure or volume support in spontaneous breathing: Pressure Support Ventilation and Volume Support Ventilation

  3. Mixed respiratory support: Intermittent Mandatory Ventilation and Synchronized Intermittent Mandatory Ventilation

  4. Controlled mechanical ventilation: Pressure controlled Ventilation, Volume Controlled Ventilation, Pressure Regulated Volume Controlled Ventilation, High Frequency Ventilation
1. ASSISTED SPONTANEOUS BREATHING
1.1 Continuous Positive Airway Pressure (CPAP): CPAP is a mode of ventilation, which enables the elevation of end-expiratory pressure to levels above atmospheric pressure to increase total lung volume, and functional residual capacity, thus favoring improved oxygenation (Figure 6) (14-19).

Figure 6 - Tracheo-bronchial distention due to PEEP application leads to a progressive recruitment of alveoli. On the left, 2 PEEP; on the right, 10 cm H2O PEEP.



This method presents several advantages because of:

  • increased lung volume and FRC and improve in ventilation/perfusion ratio

  • preventing and resolving atelectasis

  • reduced work of breathing and prevention of muscle fatigue

  • Reduced sternum and chest deformities and normalization of respiratory frequency

CPAP is indicated in:

  • recurrent apnea, not from CNS origin, connected with exhaustion and muscle fatigue

  • Moderate Idiopathic Respiratory Distress Syndrome of premature baby (RDS), transient tachypnea, pulmonary edema and not     severe pneumonia and bronchopneumonia

  • Weaning from the ventilators and when reduction of intubation is desired.
CPAP is not advisable in:

  • high risk patients

  • apnea prolonged over 20 sec or recurrent, complicated by bradycardia

  • insufficient spontaneous breathing from different origins

  • severe respiratory effort to maintain ventilation

  • hypercapnia (PaCO2 > 50 mm Hg).


 
 
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