Vaginal Wall Repair – Using Amniotic Membrane Graft

Successful pregnancy outcome after septum resection and use of amnion graft in patient with high transverse vaginal septum

A 20-year-old woman recently married presented to the outpatient department of the hospital, with primary amenorrhea and difficulty in having coitus. Her height was 155 cm, breast development was normal for age, and other secondary sexual characters seemed normal. On local examination, external genitalia was normal looking, and there was no vaginal discharge. She had a blind vagina of 2 cm length. The ultrasound showed a normal-sized uterus and ovaries seemingly normal. Hormonal profile comprising serum follicle-stimulating hormone, luteinising hormone, prolactin and thyroid stimulating hormone were all within normal limits. Karyotyping was done, which showed a 46,XX pattern. The patient underwent vaginal surgery during which septum resection was done, and amnion grafting was performed to prevent stricture formation. The patient resumed successful coitus 3 months after surgery. There was no discomfort on coitus. She conceived 7 months later. Following this, the patient delivered a healthy baby boy through caesarean section at term.

Novel approach to gastric mucosal defect repair using fresh amniotic membrane allograft in dogs (experimental study)

Background

Gastric mucosal defect could result from several causative factors including the use of nonsteroidal anti-inflammatory drugs, Helicobacter pylori infection, gastrointestinal and spinal cord diseases, and neoplasia. This study was performed to achieve a novel simple, inexpensive, and effective surgical technique for the repair of gastric mucosal defect.

Methods

Six adult male mongrel dogs were divided into two groups (three dogs each). In the control positive group (C + ve), dogs were subjected to surgical induction of gastric mucosal defect and then treated using traditional medicinal treatment for such a condition. In the amniotic membrane (AM) group, dogs were subjected to the same operation and then fresh AM allograft was applied. Clinical, endoscopic, biochemical (serum protein and lipid and pepsin activity in gastric juice), histopathological, and immunohistochemistry evaluations were performed.

Results

Regarding endoscopic examination, there was no sign of inflammatory reaction around the grafted area in the AM group compared to the C + ve group. The leukocytic infiltration in the gastric ulcer was well detected in the control group and was less observed in the AM group. In the AM group, the concentrations of both protein and lipid profiles were nearly the same as those in serum samples taken preoperatively at zero time, which indicated that the AM grafting acted the same as gastric mucosa. The re-epithelization of the gastric ulcer in the C + ve group was not yet detected at 21 days, while in the AM group it was well observed covering most of the gastric ulcer. AM accelerated the re-epithelization of the gastric ulcer. The fibrous connective tissue and the precursor of collagen (COL IA1) were poorly detected in the gastric ulcer with AM application.

Conclusion

Using fresh AM allograft for repairing gastric mucosal defect in dogs showed great impact as a novel method to achieve optimum reconstruction of the gastric mucosal architecture and restoration of pre-epithelial, epithelial, and post-epithelial normal gastric mucosal barriers.