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Effects of Cryosurgery in Primary Lung Cancer  

Jung, Won-Jae (Department of Thoracic and Cardiovascular Surgery, Korea Ansan Hospital, Korea University College of Medicine)
Kim, Kwang-Taik (Department of Thoracic and Cardiovascular Surgery, Korea Anam Hospital, Korea University College of Medicine)
Yi, Eun-Jue (Department of Thoracic and Cardiovascular Surgery, Korea Anam Hospital, Korea University College of Medicine)
Lee, Sung-Ho (Department of Thoracic and Cardiovascular Surgery, Korea Anam Hospital, Korea University College of Medicine)
Kang, Moon-Chul (Department of Thoracic and Cardiovascular Surgery, Korea Anam Hospital, Korea University College of Medicine)
Chung, Jae-Ho (Department of Thoracic and Cardiovascular Surgery, Korea Anam Hospital, Korea University College of Medicine)
Ham, Soo-Yeoun (Department of Radiology, Korea Anam Hospital, Korea University College of Medicine)
Jo, Sung-Bum (Department of Radiology, Korea Anam Hospital, Korea University College of Medicine)
Publication Information
Journal of Chest Surgery / v.42, no.2, 2009 , pp. 201-205 More about this Journal
Abstract
Background: Cryosurgery has been used to treat primary malignant pulmonary tumors at our institute since November 2004. In this study we analyzed our treatment results and complication rates. Material and Method: A retrospective study using medical charts and imaging data was conducted involving 17 patients with a total of 17 malignant pulmonary tumors who were treated between November 2004 and March 2007. Fourteen patients were males and 3 were females. The median age of the patients was 64 years (range, $54{\sim}77$ years). The average size of the tumors was 48.8mm (range, $36{\sim}111mm$) in diameter. The patients were followed with chest CT scans 7 days, 1 month, 3 months, and 6 months postoperatively. PET scans were obtained between 6 and 9 months postoperatively. The treatment response was analyzed according to the Response Evaluation Criteria in Solid Tumors (RECIST) criteria. Result: Six months after treatment, 6 tumors (35.3%) showed a complete response, 4 (23.5%) had a partial response, 3 (17.6%) had stable disease, and 4 (23.5%) showed disease progression. In tumors <4 cm in diameter, a complete response was reported in 50% of the tumors. A $x^2$-test showed that in tumors <4 cm in diameter, the p-value for results better than a partial response was 0.034. With respect to procedural complications, there was 1 case of blood-tinged sputum which resolved spontaneously within 1 or 2 days, a spontaneously relieved case of subcutaneous emphysema, and 1 patient with a fever. There were no mortalities and the average hospital stay was 6.3 days. Conclusion: The effects of cryosurgery on primary lung cancer is greatest in patients with small tumors. Considering the facts that cryosurgery is minimally invasive, has a low complication rate, and can be performed repetitively, we believe that it may play an important role in the treatment of high risk lung cancer patients.
Keywords
Lung; Lung neoplasms; Cryosurgery;
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Times Cited By KSCI : 1  (Citation Analysis)
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