1. Biomedical Engineering Student
Harmonic Scalpel
Jacques Dorval
Biomedical Engineering Student
2 December 2015
Ethicon:

2. The Harmonic Scalpel and Cancer
What: is it, does it do, allowed to do
How it works
Why care
Cancer
What
Why
Studies

3. Case 1: Gastrectomy and Colon Cancer
What?
-ectomy
Surgery as cancer treatment
Patients: 1930 (946 v 984)
Image:
Chen, Xiao-Long, Xin-Zu Chen, Zheng-Hao Lu, Li Wang, Kun Yang, Jian-Kun Hu, Bo Zhang, Zhi-Xin Chen, Jia-Ping Chen, and Zong-Guang Zhou. "Comparison of Ultrasonic Scalpel versus Conventional Techniques in Open Gastrectomy for Gastric Carcinoma Patients: A Systematic Review and Meta-Analysis." <i>PLoS ONE</i>. Public Library of Science, 31 July 2014.
Web. 28 Nov

4. Results: Blood Loss [L] Abdominal Drainage [R]
Chen, Xiao-Long, et all. "Comparison of Ultrasonic Scalpel versus Conventional
Techniques in Open Gastrectomy for Gastric Carcinoma Patients: A Systematic
Review and Meta-Analysis." <i>PLoS ONE</i>. Public Library of Science,
31 July Web. 28 Nov
Blood Loss [L]
Abdominal Drainage [R]

5. Results (cont) Gastrointestinal function recovery [L]
Chen, Xiao-Long, et all. "Comparison of Ultrasonic Scalpel versus Conventional
Techniques in Open Gastrectomy for Gastric Carcinoma Patients: A Systematic
Review and Meta-Analysis." <i>PLoS ONE</i>. Public Library of Science,
31 July Web. 28 Nov
Gastrointestinal function recovery [L]
Total recovery days [R]

6. Case 2: Dissection of the Neck (for cancer cases)
What?
Surgery of neck for
Removal
Diagnostic
Patients: 406 (201 v 205)
Image:
Ren, Zhen-Hu, Jian-Lin Xu, Teng-Fei Fan, Tong Ji, Han-Jiang Wu, and Chen-Ping Zhang. "The Harmonic Scalpel versus Conventional Hemostasis for Neck Dissection: A Meta-Analysis of the Randomized Controlled Trials." <i>PLoS ONE</i>. Public Library of Science, 10 July Web. 28 Nov

7. Results: Operation Time [L] Blood Loss [R]
Ren, Zhen-Hu, Jian-Lin Xu, Teng-Fei Fan, Tong Ji, Han-Jiang Wu, and Chen-Ping Zhang. "The Harmonic Scalpel versus Conventional Hemostasis for Neck Dissection: A Meta-Analysis of the Randomized Controlled Trials." <i>PLoS ONE</i>. Public Library of Science, 10 July Web. 28 Nov
Operation Time [L]
Blood Loss [R]

8. Results (cont) Drainage [L] Hospitilization Time [R]
Ren, Zhen-Hu, Jian-Lin Xu, Teng-Fei Fan, Tong Ji, Han-Jiang Wu, and Chen-Ping Zhang. "The Harmonic Scalpel versus Conventional Hemostasis for Neck Dissection: A Meta-Analysis of the Randomized Controlled Trials." <i>PLoS ONE</i>. Public Library of Science, 10 July Web. 28 Nov
Drainage [L]
Hospitilization Time [R]

9. Talk So why do we care? Drawbacks: 50% less blood loss
Around >30 minute reduction
Prevention of spread
Drawbacks:
No significant reduction in hospitilization
Thermal damage

10. Q & A
P.S. Good luck on upcoming exams!