Sang Rock Cho

Publications (3)9.46 Total impact

• Article: New treatment method for reexpansion pulmonary edema: differential lung ventilation.

  Sang Rock Cho, Jeong Sang Lee, Mun Soo Kim
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  ABSTRACT: Reexpansion pulmonary edema (REPE) is an iatrogenic complication that develops in a lung rapidly reinflated after varied periods of collapse. Though infrequent, it is often lethal. Measures to prevent REPE are well known and mild cases may be reversed with conventional ventilator therapy and medication; however, there is no definitive treatment for this condition in its severest forms. Asynchronous differential lung ventilation is a relatively new therapeutic modality for preoperative, intraoperative, or postoperative treatment of respiratory failure secondary to ventilation-perfusion mismatch. Successful treatment of severe REPE in a 29-year-old male patient is described, using asynchronous differential lung ventilation.
  The Annals of thoracic surgery 12/2005; 80(5):1933-4. · 3.74 Impact Factor
• Source

  Available from: scmr.org

  Article: In vivo detection of encapsulated intracardiac paraganglioma by delayed gadolinium enhancement magnetic resonance imaging.

  Christopher McGann, Henry Tazelaar, Sang Rock Cho, Youssef Al-Saghir, Fredric Shean, William Young, Hartzell Schaff
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  ABSTRACT: Intracardiac paragangliomas are rare endocrine tumors that are usually benign and can be cured by surgical resection. Both invasive and encapsulated forms have been described and degree of invasion determines surgical complexity. We present in vivo detection of fibrotic encapsulation in a cardiac paraganglioma using delayed enhancement (DE) cardiac magnetic resonance imaging (CMRI), later confirmed on pathology. This finding improved presurgical risk assessment and helped guide management. Tumor necrosis was also easily identified. DE appears useful in the assessment of intracardiac tumor invasion.
  Journal of Cardiovascular Magnetic Resonance 02/2005; 7(2):371-5. · 3.72 Impact Factor
• Article: Is roller pump induced tubing rupture a clinical possibility?

  Won Gon Kim, Chan Il Chung, Sang Rock Cho
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  ABSTRACT: We analyzed the effects of variations in the diameter of silicone rubber and polyvinyl chloride (PVC) tubings on the likelihood of tubing rupture during modeling of accidental arterial line clamping in cardiopulmonary bypass (CPB) with a roller pump. A closed CPB circuit constructed with a roller pump was tested with both PVC and silicone rubber tubings of 1/2, 3/8, and 1/4 inch internal diameter. Arterial line pressure was monitored, and an occlusive clamp was placed across the tubing distal to the pressure monitor site to model an accidental arterial line occlusion. A charge coupled device camera with 512 (horizontal) x 492 (vertical) pixels was installed above the roller pump to measure tubing diameters at pump outlet where the maximum deformations (distension) of the tubings occurred. Quantitative measurement of the changes of tubing diameters with the change of arterial line pressure was performed using computerized image processing techniques. A visible change of tubing diameter was generally noticeable by around 250 psi of arterial line pressure, which was already very high. By 1,500 psi, the PVC tubings showed an increase of diameter between 5% to 10% while the silicone rubber tubings showed an increase between 20% to 25%. Silicone rubber tubings of all sizes showed greater distensibility than PVC tubings of equivalent size. In conclusion, although roller pump induced tubing rupture remains a theoretical problem during CPB in terms of the inherent mechanism of the pump, in reality such an occurrence is impossible in real clinical conditions.
  Artificial Organs 07/2002; 26(6):564-6. · 2.00 Impact Factor