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Amniotic membrane can be a valid source for wound healing

Abstract: Amniotic membrane (AM) can promote proper epithelialization with suppression of excessive fibrosis by creating a supportive milieu for regeneration of chronic ulcer bed.

Objective: The objective of this study is to investigate whether AM scaffold can modulate the healing of a wound by promoting tissue reconstruction rather than promoting scar tissue formation.

Subjects and methods: AM was obtained and prepared and then applied to patients with chronic leg ulcers who were randomly divided into two different groups. Group I (control group) included eleven patients in whom ulcers were treated with conventional wound dressings that were changed daily for 8 weeks. Group II (study group) included 14 patients in whom the AM was placed in contact with the ulcer and held in place with a secondary dressing, which was changed daily. Follow-up was done to detect healing rate and detection of ulcer size, assessment of pain, and to take ulcer images (days 0, 7, 14, 21, 30, 45, and 60).

Results: In group I, all ulcers showed no reduction in their size, and ulcer floor remained the same. Healthy granulations were present in two ulcers (18.2%) and absent in nine ulcers (81.8%). There was no improvement of pain level in the eleven ulcers. In group II, complete healing of 14 ulcers occurred in 14–60 days with a mean of 33.3±14.7; healing rate range was 0.064–2.22 and the mean 0.896±0.646 cm2/day. Healthy granulations were present in 13 ulcers (92.9%) and absent in one ulcer (7.1%). Three ulcers (21.4%) were of mild severity (grade 1 ulcers) while eleven ulcers (78.6%) were of moderate severity (grade 2 ulcers). The healing rate was faster in ulcers of mild severity (1.7±0.438 cm2/day) in comparison to ulcers of moderate severity (0.673±0.498 cm2/day). Eleven cases (78.6%) showed improvement in their pain level on a scale from 0 to 10.

Conclusion: AM graft can be of value in wound healing. Further studies are needed to confirm these findings.

ElHeneidy H, Omran E, Halwagy A, Al-Inany H, Al-Ansary M, Gad A

Keywords: amniotic membrane, ulcer, placenta, cesarean section

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