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Vocal Cord Paralysis after the Coronary Artery Bypass Graft: A Case Report
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Kwang Su Kim, Seong Wook Jeong, Sang Hyun Kwak, Myung Ha Yoon, Kyung Yeon Yoo, Chang Young Jeong, Sung Su Chung
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Korean J Crit Care Med. 2005;20(2):170-173.
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- Surgical trauma has long been recognized as the most common cause of unilateral and bilateral vocal cord paralysis. We experienced a case of bilateral vocal cord paralysis after off-pump coronary artery bypass graft. The patient was repeated intubation and extubation after operation in surgical intensive care unit. Fiberoptic bronchoscopy revealed bilateral vocal cord paralysis in the patient. The patient recovered after permanent tracheotomy. We reported a case of vocal cord paralysis after coronary artery bypass graft.
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Effects of Alfentanil on Hemodynamic and Catecholamine Responses to Laryngoscopy and Endobronchial Intubation in the Elderly
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Kyung Yeon Yoo, Sung Su Chung, Myung Ha Yoon, Seong Wook Jeong, Jeong Il Choi, Chang Young Jeong
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Korean J Crit Care Med. 2005;20(2):114-120.
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- BACKGROUND
Endobronchial intubation should elicit significant circulatory responses. We examined the effects of alfentanil on hemodynamic and catecholamine responses to endobronchial intubation in elderly patients. METHODS: A total of 60 patients aged over 60 years requiring endobronchial intubation were randomized into three groups of 20 patients each. Anesthesia was induced with thiopental 4~6 mg/kg followed by saline (placebo) or alfentanil 10 or 30microgram/kg given as a bolus over 30 s. Succinylcholine 1 mg/kg was given for neuromuscular block. Laryngoscopy and intubation were performed 1 min later. RESULTS: The intubation significantly increased systolic arterial pressure and heart rate. The maximum pressure changes from pre-intubation values in both alfentanil groups (58+/-27 and 33+/-30 mm Hg in 10 and 30microgram/kg, respectively) were significantly lower compared with that of 83+/-35 mm Hg in the control group. The tachycardiac response was not significantly affected by alfentanil 10microgram/kg, but attenuated by alfentanil 30microgram/kg. The plasma norepinephrine concentrations were increased, which was not affected by alfentanil 10microgram/kg, but was significantly attenuated by alfentanil 30microgram/kg. Both doses of alfentanil abolished the increase of plasma epinephrine concentrations. Three patients in the 30microgram/kg group received ephedrine for hypotension. CONCLUSIONS: This study showed that endobronchial intubation elicited significant pressor response, and that alfentanil 30microgram/kg is more efficacious in attenuating the hemodynamic and catecholamine responses, although potential hypotension warrants a caution of its use, in elderly patients.
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Re-expansion Pulmonary Edema after Chest Tubing: A Case Report
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Seong Wook Jeong, Chang Mo Kim, Cheol Hun Choi, Dong Jin Shin, Hong Beom Bae, Sung Su Chung, Kyung Yeon Yoo, Chang Young Jeong
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Korean J Crit Care Med. 2005;20(1):87-91.
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- Re-expansion pulmonary edema (RPE) is a rare complication associated with the treatment of collapsed lung caused by pneumothorax, atelectasis, pleural effusion in which a large amount of air or effusion fluid is evacuated. In general RPE is resulted from more than 3 days of lung collapse and application of high negative intrapleural pressure. However, it is reported that RPE could be developed despite the collapse period is short and negative pressure suction is not performed. It also has been known that the rate of reexpansion is more important than amount of evacuated air, or collapse period in the development of RPE.
Seventeen-year-old female was undergone suture hemostasis for liver laceration, in which RPE was occurred after closed thoracostomy for pleural effusion on postoperative-27 day.
We present a case report with review of related articles.
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Influence of Collapse and Re-ventilation of Lung on the Development of Pulmonary Edema
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Sang Hyun Kwak, Won Jong Jin, Hong Beom Bae, Seong Wook Jeong, Sung Su Chung, Chang Young Jeong
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Korean J Crit Care Med. 2004;19(1):8-19.
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- BACKGROUND
This study was to clarify the influence of collapse and re-ventilation of lung on the development of pulmonary edema in rabbit. METHODS: Animals were randomly assigned to one of three groups: Sham group receiving two lung ventilation (n=14), Collapse group receiving collapse of right lung (n=14), Reventilation group receiving collapse of right lung for 3 hours followed by reventilation of collapsed right lung for 3 hours (n=14). The lung of rabbits were ventilated with 50% oxygen through the tracheostomy.
Right main bronchus was secured by thoracotomy in all animal. Collapse and reventilation were performed using by bulldog forcep. Mean arterial pressure, heart rate, arterial oxygen tension (PaO2), peripheral blood leukocyte and platelet counts were recorded at 0, 1, 2, 3, 4, 5 and 6 hour after the start of experiment. The wet to dry (W/D) weight ratio of lung, lung injury score and leukocyte counts, percentage of polymorphonuclear leukocyte (PMNL), concentration of albumin, and interleukin-8 (IL-8) in bronchoalveolar lavage fluid (BALF) were measured 6 hour after the start of experiment in both lung. RESULTS: W/D weight ratio of lung, lung injury score and leukocyte counts, percentage of PMNL, concentration of albumin and IL-8 in BALF were significantly increased in both lung of reventilation group. And the degree of increases is more significant in right than left lung. CONCLUSIONS: These findings suggest that reventilation of collapsed lung causes the bilateral pulmonary edema in rabbit mainly by activating neutrophil and IL-8 responses, which may play a central role in non cardiogenic pulmonary edema.
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Tracheoesophageal Fistula as a Complication after Endotracheal Intubation: A Case Report
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Woong Mo Kim, Seong Wook Jeong, Sang Hyun Kwak, Sung Su Chung, Chang Young Jeong
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Korean J Crit Care Med. 2003;18(1):39-42.
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- Placement of endotracheal tube, even for extremely short periods, can result in injury to laryngeal and tracheal tissue. This may be clinically insignificant, but in rare cases, it could be life threatening and results in permanent disability. Especially, tracheoesophageal fistula (TEF) is a serious and challenging problem because it may contaminate the tracheobronchial tree and interfere with nutrition. This uncommon but lethal complication has been reported to be associated with certain risk factors in tracheally intubated patients, and better knowledge of these factors could reduce the incidence of post-intubation TEF. We report a case of 49-year old male patient who has acquired TEF caused by endotracheal intubation and positive pressure ventilation.
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Airway Obstruction with Armored Tracheostomy Tube by Swelling of Inner Layer: A case report
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Chang Young Jeong, Sang Hyun Kwak, Sung Su Chung, Hyon Jeong Lee, Tae Yob Kim
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Korean J Crit Care Med. 1997;12(2):169-172.
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- One of the reasons for insertion of endotracheal tube is to provide a patent airway. Unfortunately, the tube itself may become the cause of airway obstruction. Especially, armored tube is known to be most effective in maintenance of airway patency. However, airway obstruction has been reported by a varity of causes even though armored tube was used. We experienced airway obstruction with armored tracheostomy tube by swelling of inner layer near the cuff. The tube was reused one and had been disinfected with ethylene oxide.
Therefore, to prevent complication such as airway obstruction by use of armored tubes, it is desirable to avoid reusal of armored tube and to examine the lumen as well as cuff before intubation when reused.
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