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Quantitative Sensory Testing (QST) - Does assessing ... - TI Pharma

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2. Bilateral abnormalities in neuropathic pain<br />

Fig 2-3: <strong>Quantitative</strong> <strong>Sensory</strong> <strong>Testing</strong> (<strong>QST</strong>) z-score abnormalities in % at the affected (left)<br />

and contralateral side (right) in 81 neuropathic pain patients. <strong>QST</strong> parameter are ordered as sensory<br />

parameters: Cold Detection Threshold (CDT), Warm Detection Threshold (WDT), Thermal <strong>Sensory</strong><br />

Limen (TSL), Mechanical Detection Threshold (MDT), Vibration Disappearance Threshold (VDT),<br />

Paradoxical Heat Sensation (PHS), Dynamic Mechanical Allodynia (DMA) and nociceptive<br />

parameters: Cold Pain Threshold (CPT), Heat Pain Threshold (HPT), Pressure Pain Threshold (PPT),<br />

Mechanical Pain Threshold (MPT), Mechanical Pain Sensitivity (MPS) and Wind Up Ratio (WUR).<br />

Z-scores with positive sensory signs (gain of sensory function) plotted rightwards and negative<br />

sensory signs (loss of sensory function) plotted leftwards. Absence of DMA is normal and therefore<br />

no negative sign possible.

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