Jae-Hyon Bahk
Seoul National University · Medicine
About the Lab
Professor Jae-Hyon Bahk's research lab specializes in airway management and critical care anesthesia, with a strong focus on minimizing airway trauma and improving patient safety during difficult airway scenarios. The lab investigates innovative techniques for endotracheal intubation, intravascular device positioning (such as intra-aortic balloon pumps), and the use of advanced airway devices like the laryngeal mask airway (LMA) in pediatric and high-risk patients. Key research directions include optimizing airway device placement, predicting fluid responsiveness in spontaneously breathing patients, and enhancing the safety of anesthetic induction in patients with difficult airways or congenital syndromes.
Research Overview
Research Output Trend
Figures are computed from collected data and may differ slightly.
Selected Papers
15During nasotracheal intubation with conventional endotracheal tubes, Magill-tipped, non-thermosoftened tubes seem to be comparable to Murphy-tipped, thermosoftened tubes with regard to trauma on the nasal mucosa.
We evaluated whether pulse pressure variation can predict fluid responsiveness in spontaneously breathing patients. Fifty-nine elective thoracic surgical patients were studied before induction of general anaesthesia. After volume expansion with hydroxyethyl starch 6 ml.kg(-1) , patients were defined as responders by a ≥ 15% increase in the cardiac index. Haemodynamic variables were measured before and after volume expansion and pulse pressure variations were calculated during tidal breathing and
The distance between endotracheal tube tip and vocal cords is directly related to the risk of exubation. Despite tracheal elongation, neck extension actually displaced the endotracheal tube tip to the vocal cords in older children.
In 16% of patients, the IABP was too close to the LSCA origin when it was placed at the aortic knob, whereas positioning the IABP at 2 cm above the carina provided an adequate position for the IABP tip (1.5-3.5 cm distal to the origin of the LSCA) in 95.3% of patients. The carina may be a more reliable landmark for positioning the IABP than the aortic knob.
We report four cases of difficult airway managed with a laryngeal mask airway (LMA) under propofol anaesthesia; this method was chosen to minimize psychological and physical trauma. Case 1 was a boy with dermatomyositis; Case 2, a girl wearing a base ring of a stereotactic frame; Case 3, a boy with Treacher-Collins syndrome; Case 4, a boy with Goldenhar syndrome. They were anaesthesized with propofol and though spontaneous ventilation became shallower, or apnoea occurred, the stimulus of inserti
Research Areas
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