Impedance Problems and Their Causes—A Single-Center Analysis of 601 Patients with De Novo Deep Brain Stimulation

Figures

• 

  Figure A1. Overview of permanent impedance problems and the disease of the affected patients. The ratio resembles the ratio of diseases implanted in general.

• 

  Figure A2. Overview of affected contacts of permanent impedance problems for Medtronic. Contact 0 was most often affected since it was usually the first contact that was screwed. The longer electrode was affected twice as much.

• 

  Figure A3. Overview of affected contacts of permanent impedance problems for Abbott. Contacts of Level 3 and 2 were most often affected. The shorter electrode was affected twice as much.

• 

  Figure A4. Overview of affected contacts of permanent impedance problems for Boston Scientific. The longer electrode was affected twice as much.

• 

  Figure A5. Overview of affected contacts of permanent impedance problems and the implanted generator. The ratio equals the number of generators implanted. PC means primary cell and is a non-rechargeable battery. RC means rechargeable cell. XP stands for extended performance.

• 

  Figure A6. Overview of temporary impedance problems and the disease of the affected patients. The ratio resembles the ratio of diseases implanted in general, except for dystonic patients.

• 

  Figure A7. Overview of affected contacts of temporary impedance problems for Medtronic. The longer electrode was affected twice as much.

• 

  Figure A8. Overview of affected contacts of temporary impedance problems for Abbott. Contacts of Level 3 and 2 were most often affected. The longer electrode was affected twice as much in contrast to permanent impedance problems.

• 

  Figure A9. Overview of affected contacts of temporary impedance problems for Boston Scientific.

• 

  Figure A10. Overview of affected contacts of temporary impedance problems and the implanted generator. The ratio equals the number of generators implanted.

• 

  Figure 1. De novo implantations in relation to the supplier used. M is Medtronic, A is Abbott (formerly St. Jude Medical) and B is Boston Scientific.

• 

  Figure 2. Overview of companies and the implanted pulse generator. From Medtronic and Abbott, mainly batteries were implanted; from Boston Scientific, mainly reload batteries were implanted.