The clinical significance of infrared thermography for the prediction of postherpetic neuralgia in acute herpes zoster patients

Ko, Eun Jung; No, Yeon A; Park, K. Y.; Li, K.; Seo, Sang Woo; Hong, Chang Kwun

doi:10.1111/srt.12237

Cited by 17 publications

(17 citation statements)

References 15 publications

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“…During the study, it is possible to verify the change in the thermal gradient from its initial phase, to the final result of the therapeutic approach. The results observed in this case study are in agreement with the findings of Ko et al [9], who evaluated 112 individuals (46 men and 66 women) aged 9 to 93 years with herpes zoster, and observed that as the temperature difference between the affected and the contra lateral dermatome (ΔT) increased, the occurrence of PHN increased significantly. In the same sense, Han et al [10] evaluated 110 patients diagnosed with acute HZ, with the development of PHN and comorbidities.…”

Section: Discussionsupporting

confidence: 93%

Thermal Images in the Assessment of Post-Herpetic Neuralgia: A Case Study

Neves¹

2020

BJSTR

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Post-herpetic neuralgia is due to an acute painful viral infection resulting from endogenous activation of the varicella virus. The thermal Image (or thermography) is a tool applicable to the diagnosis and clinical monitoring of neuropathic diseases. In this sense, the aim of this study was to present a case of post-herpetic neuralgia assessed and with its therapeutic approach monitored by thermal images. A Female patient, 11 years old, EVA 9 for 1 year and 4 months on the right flank, paravertebral and intercostal region between the 9th and 11th ribs, without previous trauma, without a closed nosological diagnosis, was assessed with thermal images in March (before intervention) and October (after intervention) 2019, with the measurement of the maximum and minimum temperatures of the demarcated areas. Results shoes that in March 2019 (before intervention), it was found asymmetrical intercostal hot spot between 9 th -11 th ribs with the maximum thermal difference (ΔT) of 0.9°C, in comparison to the contralateral flank.In the postero anterior image, a hyper-radiant signal was found with a thermal difference (ΔT) of 0.7°C, compared to the contralateral flank. Seven months after the start of treatment (October 2019), the right intercostal region showed a maximum thermal difference (ΔT) of 0.4°C, compared to the contra lateral flank. In the dorsal region, there was a thermal difference (ΔT) of 0.2°C. It can be concluded that thermal images are useful to the formation of the diagnostic hypothesis and assessment of the clinical evolution of the patient with neuropathic pain.

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Section: Discussionsupporting

confidence: 93%

Thermal Images in the Assessment of Post-Herpetic Neuralgia: A Case Study

Neves¹

2020

BJSTR

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“…These sticker-like sensors are used in sleep studies to help with the treatment of sleep disorders, jet lag, and pressure ulcers on a clinical bed setup. Distributed skin temperature mapping has also been demonstrated to study thermoregulation efficiency in athletic performance 25 , as well as dermatome abnormality through regional nerve root damage 26 . However, even though they are wireless, these epidermal sensors require a Near Field Communication (NFC) reader around the vicinity to power the electronics and collect the data.…”

Section: Introductionmentioning

confidence: 99%

A tailored, electronic textile conformable suit for large-scale spatiotemporal physiological sensing in vivo

et al. 2020

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The rapid advancement of electronic devices and fabrication technologies has further promoted the field of wearables and smart textiles. However, most of the current efforts in textile electronics focus on a single modality and cover a small area. Here, we have developed a tailored, electronic textile conformable suit (E-TeCS) to perform large-scale, multimodal physiological (temperature, heart rate, and respiration) sensing in vivo. This platform can be customized for various forms, sizes and functions using standard, accessible and high-throughput textile manufacturing and garment patterning techniques. Similar to a compression shirt, the soft and stretchable nature of the tailored E-TeCS allows intimate contact between electronics and the skin with a pressure value of around~25 mmHg, allowing for physical comfort and improved precision of sensor readings on skin. The E-TeCS can detect skin temperature with an accuracy of 0.1°C and a precision of 0.01°C, as well as heart rate and respiration with a precision of 0.0012 m/ s 2 through mechano-acoustic inertial sensing. The knit textile electronics can be stretched up to 30% under 1000 cycles of stretching without significant degradation in mechanical and electrical performance. Experimental and theoretical investigations are conducted for each sensor modality along with performing the robustness of sensor-interconnects, washability, and breathability of the suit. Collective results suggest that our E-TeCS can simultaneously and wirelessly monitor 30 skin temperature nodes across the human body over an area of 1500 cm 2 , during seismocardiac events and respiration, as well as physical activity through inertial dynamics.npj Flexible Electronics (2020) 4:5 ; https://doi.

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“…Several studies have used infrared thermography (IRT) to measure skin temperature during HZ-affected periods [15][16][17]. IRT is a noncontact imaging technique that uses an infrared camera to detect and visualize emitted body heat.…”

Section: Introductionmentioning

confidence: 99%

Determining the Definitive Time Criterion for Postherpetic Neuralgia Using Infrared Thermographic Imaging

Kim

Lee

Han³

et al. 2022

Pain Ther

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Introduction:The time criteria used in many studies of postherpetic neuralgia (PHN) are arbitrary and do not have supporting evidence. Therefore, this study sought to determine the definite time criterion for PHN by analyzing the skin temperature to estimate the time point when zoster-induced skin inflammatory reaction ends. Methods: Infrared thermography was used to measure the difference in skin temperature between the affected and unaffected areas (DTemp) in the craniocervical and thoracic regions of patients with herpes zoster (HZ). Because the DTemp changes from a positive value to zero when the skin is no longer inflamed, a DTemp B 0 was defined as the end of skin inflammation, and this time point was considered the starting point for PHN. This cutoff time point was estimated using receiver operating characteristic (ROC) curve analysis. Results: A total of 503 patients were included in this study. The ROC curve analysis showed that the time point when the DTemp was B 0 occurred at 12 weeks after HZ onset (95% confidence interval 11-15 weeks, area under the ROC curve 0.901). Using this time point as the time criterion of PHN, the sensitivity, specificity, and classification accuracy were 0.807, 0.905, and 0.871, respectively.

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The clinical significance of infrared thermography for the prediction of postherpetic neuralgia in acute herpes zoster patients

Abstract: In this study, we showed that infrared thermography is useful as a predictor of PHN development in acute HZ patients but is not useful as an objective assessment tool for indicating subjective pain.

Cited by 17 publications

References 15 publications

Thermal Images in the Assessment of Post-Herpetic Neuralgia: A Case Study

Thermal Images in the Assessment of Post-Herpetic Neuralgia: A Case Study

A tailored, electronic textile conformable suit for large-scale spatiotemporal physiological sensing in vivo

Determining the Definitive Time Criterion for Postherpetic Neuralgia Using Infrared Thermographic Imaging

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