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48 results on '"Hahm, Kyung Don"'

23. Preoperative Treatment With an Angiotensin‐Converting Enzyme Inhibitor or an Angiotensin Receptor Blocker Has No Beneficial Effect on the Development of New‐Onset Atrial Fibrillation After Off‐Pump Coronary Artery Bypass Graft Surgery

Author

Chin, Ji‐Hyun, primary, Lee, Eun‐Ho, additional, Son, Hyo Jung, additional, Kim, Wook‐Jong, additional, Choi, Dae‐Kee, additional, Park, Soo‐Kyoung, additional, Sim, Ji‐Yeon, additional, Choi, In‐Cheol, additional, and Hahm, Kyung‐Don, additional

Published
2011
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46. Falsely increased bispectral index score during deep hypothermic circulatory arrest in cardiac surgery.

Author

Jae Ouk Bang, Hyo Jung Son, Eun Ho Lee, Hahm, Kyung-Don, and Choi, In-cheol

Subjects
SIDE effects of hypnotics, SEDATIVES, ANESTHETICS, PHARMACODYNAMICS, ELECTROMYOGRAPHY, CARDIAC surgery patients
Abstract

In this article, the authors focus on the use of the bispectral index score (BIS) for determining hypnotic effect of sedative drugs and anesthetics. They state that high BIS value results from high electromyography (EMG) activity. They also report two cases in which BIS values are very high in cardiac surgery patients during deep hypothermic circulatory arrest (DHCA).

Published
2012
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47. [Bedside prediction of right subclavian venous catheter insertion length].

Author

Choi YJ, Hahm KD, Kwon K, Lee EH, Ro YJ, and Yang HS

Abstract

Background and Objective: The present study aimed to evaluate whether right subclavian vein (SCV) catheter insertion depth can be predicted reliably by the distances from the SCV insertion site to the ipsilateral clavicular notch directly (denoted as I-IC), via the top of the SCV arch, or via the clavicle (denoted as I-T-IC and I-C-IC, respectively)., Method: In total, 70 SCV catheterizations were studied. The I-IC, I-T-IC, and I-C-IC distances in each case were measured after ultrasound-guided SCV catheter insertion. The actual length of the catheter between the insertion site and the ipsilateral clavicular notch, denoted as L, was calculated by using chest X-ray., Results: L differed from the I-T-IC, I-C-IC, and I-IC distances by 0.14±0.53, 2.19±1.17, and -0.45±0.68cm, respectively. The mean I-T-IC distance was the most similar to the mean L (intraclass correlation coefficient=0.89). The mean I-IC was significantly shorter than L, while the mean I-C-IC was significantly longer. Linear regression analysis provided the following formula: Predicted SCV catheter insertion length (cm)=-0.037+0.036×Height (cm)+0.903×I-T-IC (cm) (adjusted r(2)=0.64)., Conclusion: The I-T-IC distance may be a reliable bedside predictor of the optimal insertion length for a right SCV cannulation., (Copyright © 2013 Sociedade Brasileira de Anestesiologia. Publicado por Elsevier Editora Ltda. All rights reserved.)

Published
2014
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48. Prognostic implications of preoperative E/e' ratio in patients with off-pump coronary artery surgery.

Author

Lee EH, Yun SC, Chin JH, Choi DK, Son HJ, Kim WC, Choi SS, Song JG, Hahm KD, Sim JY, and Choi IC

Subjects
Aged, Cardiovascular Diseases diagnosis, Cardiovascular Diseases etiology, Cardiovascular Diseases physiopathology, Female, Follow-Up Studies, Humans, Male, Middle Aged, Postoperative Complications etiology, Prognosis, Ventricular Function, Left physiology, Coronary Artery Bypass, Off-Pump adverse effects, Diastole physiology, Postoperative Complications diagnosis, Postoperative Complications physiopathology, Preoperative Care methods, Stroke Volume physiology, Systole physiology
Abstract

Background: The ratio of early transmitral flow velocity to early diastolic velocity of the mitral annulus (E/e') correlates with left ventricular (LV) filling pressure. In particular, an E/e' ratio more than 15 is an excellent predictor of increased LV filling pressure. The authors evaluated the prognostic implications of preoperative estimated LV filling pressure, assessed by E/e' ratio, in patients undergoing off-pump coronary artery bypass graft surgery., Methods: This observational study investigated 1,048 consecutive adults undergoing elective off-pump coronary artery bypass graft surgery. The primary outcome was occurrence of major adverse cardiac events (MACE), defined as a composite of death, myocardial infarction, malignant ventricular arrhythmia, cardiac dysfunction, or need for new revascularization. Logistic regression and survival analyses were performed., Results: An E/e' ratio more than 15 was independently associated with 30-day MACE (odds ratio 2.4, 95% CI 1.4-3.9, P = 0.001) and 1-yr MACE (hazard ratio 2.1, 95% CI 1.4-3.1, P = 0.001), irrespective of underlying LV ejection fraction. MACE free 1-yr survival rate was significantly decreased in patients with E/e' >15, irrespective of underlying LV ejection fraction., Conclusions: Increased LV filling pressure, assessed by E/e' ratio, is an independent predictor of 30-day and 1-yr MACE in patients who undergo elective off-pump coronary artery bypass graft surgery. These findings indicate that measurements of E/e' may assist in preoperative risk stratification of these patients.

Published
2012
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