SECTION 15: HALO STUDY Flashcards

1
Q

What other study does the HALO study refer to and build off of?

A

PROCO

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2
Q

What does the HALO study aim to explore?

A

To explore whether effective subperception pain relief can be achieved using frequencies below 1 kHz

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3
Q

Who lead the HALO study?

A

Dr. Thomson and Dr. Paz-solis

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4
Q

What type of study is the HALO study?

A

Multicenter, real-world, consecutive, observational case series

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5
Q

Sub-perception therapy feels like:

A

Nothing

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6
Q

Paresthesia feels like

A

Tingling

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7
Q

Paresthesia is slow or fast acting?

A

Faster

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8
Q

Subperception is slow or fast acting?

A

Slow

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9
Q

True or false: Traditionally only paresthesia SCS was able to effectively be delivered at low, battery saving frequencies, and HALO studied whether or not subperception could do the same thing

A

True

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10
Q

Which BSC products were included in patient selection? Which leads and ipg did the patients have to have in order to be part of the study?

A

Infinion CX (two 1x16 contact leads) and precision spectra/ spectra wavewriter IPG

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11
Q

True or false: all programs given to the patient used the same field identified in the sweet spot search at 1 kHz

A

True

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12
Q

Which novel electric field configuration was used to perform the sweet spot search?

A

Contour

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13
Q

True or false: contour preferentially modulates the synaptic terminals of the superficial dorsal horn while minimizing dorsal column activation.

A

True

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14
Q

What are two things Contour subperception does differently than paresthesia SCS?

A

Accelerates the sweet spot search by expanding the field

Engages dorsal horn elements more strongly and uniformly

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15
Q

At what Hz did contour most effectively lower the NRS pain score? (Although not statistically significant)

A

200 hz

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16
Q

True or false: all NRS scores were reduced by more than half (8 to a 3) for leg, back, and overall pain using subperception at ALL hz options

A

True

17
Q

What is the primary limitation of the HALO STUDY?

A

Lacks randomization and washout periods between frequencies