A COMPARISON OF PERIOPERATIVE OUTCOMES OF VIDEO-THORACIC SURGICALRESECTIONOF PRIMARY MEDIASTINAL TUMORS WITH OPEN METHOD: RESULTS OF AN ANALYSIS USING PROPENSITY SCORE BASED WEIGHTING

Huynh Quang Khanh, Vu Huu Vinh, Pham Minh Anh, Nguyen Hoai Nam

Main Article Content

Abstract

Background:Randomized trials comparing VATS mediastinal tumors resection to open method are very few. We analyzed a cohort using propensity scoreweighting to adjust for important covariates in order to compare the clinical outcomes of the two techniques. *
Methods: a prospective cohort two group VTS and Open. From July 2010 to July 2013 at Thoracic Surgery Department Cho Ray hospital.We compared patients undergoing mediastinal tumors resection for benign tumors or early clinical stage by either VTS or open methods. Inverse probability of treatment weighted estimators, with weights derived from propensity scores, was used to adjust cohorts for determinants of perioperative morbidity and mortality including age, gender, tumors size, ASA class, and Charlson Comorbidity Index (CCI). Bootstrap methods provided standard errors. Endpoints were operative time, blood loss, postoperative stay (LOS), chest tube duration, postoperative pain score, complications.


Results:We analyzed 209 patients with mediastinal tumors resection. None of operative mortality observed or none of VTS was converted to open procedures. Adjusted median operative time (min) was 128,9 (OPEN) versus 75,8 (VTS), P < 0,0001. Adjusted median blood loss (ml) 253,3 (OPEN) versus 65,2 (VTS), P < 0,0001. Adjusted median LOS was 7,8 days (OPEN) versus 5,4 days (VTS), P < 0.0001. Adjusted median chest tube duration (days) was 3,1 (OPEN) versus 2,1 (VTS), P < 0.0001. Adjusted median pain score postoperative was 6,6 (OPEN) versus 4,5 (VTS), P <0,0001. Complication rates were 6,7% (OPEN) versus 0,9% (VTS), P = 0.011.
Conclusions: After balancing covariates that affect morbidity, mortality and LOS in this cohort using propensity-weighting, the resultsconfirm that VTS mediastinal tumors resection is associated with a statistically significantshorter operative time, less blood loss, shorter LOS, shorter chest tube duration, lesspostoperative pain score than in OPEN group. No mortality in two groups. Complication rates are lessin VTS than in OPEN group.

Article Details

References

1. Đồng Lưu Ba, Huỳnh Quang Khánh (2005), "U trung thất: một số kinh nghiệm chẩn đoán và
điều trị phẫu thuật".Tạp chí Y học TP Hồ Chí Minh, 9, (2), tr. 50-53.
2. Ngô Quốc Hưng (2009) "Nghiên cứu chỉ định điều trị ngoại khoa u trung thất". Luận văn tốt nghiệp chuyên khoa cấp II. Đại Học Y Dược TP. Hồ Chí Minh, tr. 34-57.
3. Lê Nguyễn Quyền (2013), "Nghiên cứu vai trò phẫu thuật nội soi lồng ngực trong chẩn đoán và điều trị u trung thất".Luận án tiến sĩ y học. Đại Học Y Dược TP. Hồ Chí Minh, tr. 83-101.
4. Akashi A., Hazama K., Miyoshi S.,et al (2001), "An analysis of video-assisted thoracoscopic resection for mediastinal masses in 150 cases".Surgical Endoscopy, 15, pp. 1167-1170.
5. Bousamra M., Haasler G.B, Patterson G.A.,Roper C.L (1996), "A Comparative Study of Thoracoscopic vs Open Removal of Benign Neurogenic Mediastinal Tumors".Chest, 109, pp.
1461-1465.
6. Chang C., Chang Y., Lee Y.M.,e. al (2010), "18 Years Surgical Experience with Mediastinal Mature Teratoma".J Formos Med Assoc, 109, (4), pp. 287-292.
7. Cheng Y.J., Kao E.L.,Chou S.H. (2005), "Videothoracoscopic Resection of Stage II Thymoma: Prospective Comparison of the Results between Thoracoscopy and Open Methods.".American College of Chest Physicians, 128, pp. 3010-3012.
8. Chung JW, Kim HR, Chun MS, Kim YH, Park S-I, Kim S-R,Lee DH (2012), "Long-term Results of Thoracoscopic Thymectomy for Thymoma without Myasthenia Gravis".The Journal of International Medical Research, 40, pp. 1973-1981.
9. Cirino L., Campos J., Fernandez A.,e. al (2000), "Diagnosis and Treatment of Mediastinal Tumors by Thoracoscopy".Chest, 117, pp. 1787- 1792.
10. Kitami A., et al (2004), "Diagnostic and Therapeutic Thoracoscopy for Mediastinal Disease".Ann Thorac Cardiovasc Surg, 10, pp. 14-18.
11. Lazdunski L., PillingJ. (2008), "Videothoracoscopic Excision of Mediastinal Tumors and Cysts Using the Harmonic scalpel".Thorac Cardiovasc Surg, 56, (5), pp. 278-282.
12. Matsumura, Y. (2010), "Thoracoscopic surgery of mediastinal tumor".Kyobu Geka, 63, (8), pp.
724-729.
13. Nicolas V., et al (2004), "Mediastinal Neurogenic Tumors and Video-Assisted Thoracoscopy: Always The Right Choice?".Surgical Laparoscopy, Endoscopy & Percutaneous Techniques, 14, (1), pp. 20-22.
14. Pons F., Lang-Lazdunski L., Bonnet P.,e. al (2003), "Videothoracoscopic Resection of Neurogenic Tumors of THe Superior Sulcus Using The Harmonic Scalpel".Ann Thorac Cardiovasc Surg, 75, pp. 602-604.
15. Roviaro G., Varoli F., Nucca O.,et al (2000), "Videothoracoscopic Approach to Primary Mediastinal Pathology".Chest, 117, (4), pp. 1179-1183.
16. Scott W.J., Matteotti R.S., Egleston B.L., Oseni S.,Flaherty J.F. (2010), "A Comparison of Perioperative Outcomes of Video-Assisted Thoracic Surgical Lobectomy with Open Thoracotomy and Lobectomy: Results of an Analysis Using Propensity Score Based Weighting".Annals of Surgical Innovation and Research, 4, pp. 1-10.

Similar Articles

You may also start an advanced similarity search for this article.