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Incidence of Pulmonary Aspiration in Patients with Tracheostomy
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Keon Sik Kim, Dong Soo Kim, Wha Ja Kang, Young Kyu Choi, Ok Young Shin, Doo Ik Lee, Moo Il Kwon
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Korean J Crit Care Med. 1999;14(2):161-166.
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 Abstract
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- BACKGOUND: Patients with tracheostomy tubes have altered glottic closure in deglutition that may result in aspiration and may cause dangerous pulmonary complication including bronchopneumonia and atelectasis. The incidence of pulmonary aspiration in patients with tracheosomy may be high but difficult to determine because investigators often apply different criteria. The present study was prepared to document the incidence of aspiration in patients with tracheostomy using a simple dye-marker test.
METHODS
Thirty six surgical and medical patients (14 male and 22 female) in ICU with tracheostomy tube (high volume, low pressure cuffed tube) were included in this study.
Mental status (presence of response to verbal command), the presence of nasogastric tube and the presence of ventilatory support were recorded in each patients to evaluate the effect of these factors on the incidence of aspiration. 1% solution of methylene blue dye was applied on the both side of posterior tongue and then any evidence of the blue dye-marker obtained microscopically on secretion through the tracheostomy tube at every 2 hours during 72 hours was considered the positive evidence of aspiration.
RESULTS
Aspiration was detected by a positive methylene blue dye test in 11 of the 36 patients (30.5%) and average length of time before blue dye was obtained on tracheal secretion was 8.2 7.3 hours.The presence of response to verbal command, nasogastric tube and ventilatory support had no apparent effect on the incidence of aspiration.
CONCLUSIONS
This observation suggests that a simple test using dye-maker is helpful to detect aspiration in patients with tracheostomy. Tracheostomy should be done under discreet decision because the high incidence of aspiration in trcheostomized patients.
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Effects of Intravenous Lidocaine on Intra-abdominal Pressure during Endotracheal Suctioning
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Wha Ja Kang, Seok Hee Ham, Young Kyu Choi, Moo Il Kwon
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Korean J Crit Care Med. 1998;13(2):224-228.
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Abstract
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- BACKGOUND: We evaluated the effect of intravenous lidocaine (1 mg/kg and 2 mg/kg) on intra-abdominal pressure (IAP) during endotracheal suctioning.
METHODS
We studied 40 patients undergoing endotracheal intubation during mechanical ventilation. Group I (1 mg/kg) and group II (2 mg/kg)were given lidocaine double fashion.
The endotracheal suctioning (ETS) was done 1, 3, 5 and 7 min after the injection of lidocaine. IAP, systolic blood pressure (SBP), diastolic blood preassure (DBP), and heart rate (HR) during ETS were recorded, IAP was measured using a transurethral bladder catheters. The cough response to ETS was classified as " cough score".
RESULTS
Before administration of lidocaine, ETS produced significant increase in SBP, DBP, IAP and HR compared with baseline values in the two groups (p<0.05). Both groups showed no significant changes in SBP, DBP, and HR during the study. In group I, ETS produced a significant increase in IAP 5 and 7min after lidocaine treatment (p<0.05). There were significant differences between the two groups 5 and 7 min after lidocaine treatment (p<0.05). The score of cough decreased significantly in both groups 3 min after lidocaine treatment but there was a significant difference between the two groups at 7 min.
CONCLUSIONS
We concluded that lidocaine pretreatment significantly blunted the increase in IAP, SBP DBP and HR caused by ETS and this effect lasts for 3 min in group I and 7 min in group II.
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Acute Pulmonary Edema Associated with Upper Airway Obstruction after Endotracheal Extubation: A case report
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Wha Ja Kang, Byung Ik Rhee, Keon Sik Kim, Ok Young Shin
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Korean J Crit Care Med. 1998;13(1):105-108.
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Abstract
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- Pulmonary edema is a recognized complication of acute airway obstruction, laryngospasm, especially after endotracheal extubation. It usually follows relief of the obstruction and is likely to be of noncardiogenic origin. The mechanism by which an upper airway obstruction causes pulmonary edema is likely due to the combination of the increased reduction of intrapulmonary pressure, increased capillary permeability and hypoxia. We present a case of pulmonary edema that occurred in an adult patient after upper airway obstruction following extubation of the trachea.
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