Study on the Effectiveness of Hypothermal Sulphurous Water in Wound Hygiene

Condition(s) studied

Investigational drug(s) / intervention(s)

wound hygiene with hypothermal sulfurous water by packs: GROUP A: After dressing removal, the wound is exposed. Sulphur thermal water at spring temperature (23°C) is applied for 20 minutes on the untreated wound by packs on non woven gauzes entirely covering the area. Eventually, if dried, gauzes are externally watered with additional sulphurous thermal water during the 20 minutes. After water application the wound follows the other 3 steps of the wound hygiene protocol: non viable tissue removal, edges reactivation and dressing. Non interactive dressings, just for wound moisture management, are used on cleaned wound/s. Dressing fixation, elastic bandages or off-load will be provided when required. the intervention will be repeated every 48 hours for both arms.

wound hygiene with hypothermal sulfurous water by limb full immersion: GROUP B: After dressing removal, the wound is exposed. Sulphur thermal water at spring temperature (23°C) is applied for 20 minutes on the untreated wound by limb full immersion in a limb tub. After the immersion, the wound follows the other 3 steps of the wound hygiene protocol: non viable tissue removal, edges reactivation and dressing. Non interactive dressings, just for wound moisture management, are used on cleaned wound/s. Dressing fixation, elastic bandages or off-load will be provided when required. the intervention will be repeated every 48 hours for both arms.

Study summary

This is an interventional double arms pilot study on the effectiveness of hydrogen sulfide (H2S) rich and microbiologically pure spa sulphurous water, in the wound hygiene of hard-to heal wounds, set in an italian spa facility. At least 24 subjects enrolled according to selection criteria will be 1:1 randomized in two intervention groups: the former (A) undergoing pack of sulphurous water on soaked gauzes for 20 minutes, the latter (B) undergoing full limb immersion for 20 minutes. Differences among the two arms will be assessed as changes in wound microbiome, wound pH, Trans epidermal water loss (TEWL), 1000x ex-vivo microscope imaging, wound fluorescence imaging for bacterial colonization and longitudinal shifts in wound sizing and peculiar features according to the Bates-Jensen Wound Assessment Tool (BWAT). Time required for re-epithelization will be recorded together with any adverse reactions or events for both arms and compared. The study aims at assessing the effectiveness of hydrogen sulfide exogenous supply on infected or colonized hard to heal wounds and which way of administration (pack Vs immersion) could have prevailing effects.

Eligibility

Primary outcome measure(s)

• wound healing rate — within 10 minutes after wound hygiene, each session, every 48 hours, from day 0 up to wound re-epithelialization (up to 1 year)
  Longitudinal Wound healing rate will be assessed at each dressing change by applying Bates Jansen Wound Tool Score (BWAT)., max score 65, min 13, The HIGHER the total score, the more severe the wound status.
• Short term Wound bacteria critical colonization — within 10 minutes before wound hygiene, each session, every 48 hours, from day 0 up to wound re-epithelialization (up to 1 year)
  The fluorescence wound imaging using Moleculight device, assessing critical bacterial colonization (\>104UFC) of the wound before intervention will be compared to that obtained after intervention to determine whether 20 minutes exposure to sulphurous water could have exerted an antibacterial activity. The HIGHER the luminescence, the more severe the wound critical colonization
• Short term Wound microbiome changes — within 10 minutes before and within 10 minutes after wound hygiene, each session, every 48 hours, from day 0 up to wound re-epithelialization (up to 1 year)
  Wound microbiome changes will be determined before treatment, immediately after the wound hygiene in order to assess its variation related to sulfurous hypothermal water exposure .(analysis of 16S ribosomial rNa sub-unit)
• Short Term Wound bed pH changes — within 10 minutes before and within 10 minutes after wound hygiene, each session, every 48 hours, from day 0 up to wound re-epithelialization (up to 1 year)
  Ph of the wound bed will be measured using a flat glass cleavable probe, before and after intervention in order to detect if 20 minutes exposure to soaked gauzes in H2S rich water are enough to determine a lowering in wound pH values.(according to pH scale 0 to 10)

Trial sites (1)

More University of Roma La Sapienza trials in Italy

Other trials for the same condition