Publications by authors named "Emiko Aiba"

10 Publications

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Reply: Quality and Quantity-Cultured Human Mononuclear Cells Improve Human Fat Graft Vascularization and Survival in an In Vivo Murine Experimental Model.

Plast Reconstr Surg 2021 Dec;148(6):1056e-1058e

Department of Plastic and Reconstructive Surgery, Department of Regenerative Therapy, Juntendo University School of Medicine, Tokyo, Japan.

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http://dx.doi.org/10.1097/PRS.0000000000008543DOI Listing
December 2021

Quality and Quantity-Cultured Human Mononuclear Cells Improve Human Fat Graft Vascularization and Survival in an In Vivo Murine Experimental Model.

Plast Reconstr Surg 2021 02;147(2):373-385

From the Department of Plastic and Reconstructive Surgery, Juntendo University School of Medicine; and the Department of Plastic and Reconstructive Surgery, Vrije Universiteit Brussel, Universitair Ziekenhuis Brussel.

Background: Fat graft ischemia impedes us from having satisfying long-term results. The quality and quantity culture is a 1-week cell culture that increases the vasculogenic potential of peripheral blood mononuclear cells (PBMNC). This in vivo murine model investigates whether enrichment with quality and quantity-cultured human mononuclear cells (MNC-QQ) improves the vascularization in the human fat graft and whether this decreases the tissue loss.

Methods: Human adipose tissue, PBMNC, MNC-QQ, and stromal vascular fraction were prepared. First, PBMNC, MNC-QQ, and stromal vascular fraction were compared in vitro for vasculogenic potential by endothelial progenitor cell colony-forming and culture assays. Second, 0.25-g fat grafts were created with 1 × 106 PBMNC (n = 16), 1 × 106 MNC-QQ (n = 16), 1 × 106 stromal vascular fraction (n = 16), or phosphate-buffered saline as control (n = 16) before grafting in BALB/c nude mice. Grafts were analyzed for weight persistence, vessel formation by CD31 immunohistochemistry, and angiogenic markers by quantitative polymerase chain reaction.

Results: MNC-QQ develop more definitive endothelial progenitor cell colonies and more functional endothelial progenitor cells compared to PBMNC and stromal vascular fraction. Weight persistence after 7 weeks was significantly higher in grafts with MNC-QQ (89.8 ± 3.5 percent) or stromal vascular fraction (90.1 ± 4.2 percent) compared with control (70.4 ± 6.3 percent; p < 0.05). MNC-QQ-enriched grafts had the highest vessel density (96.6 ± 6.5 vessels/mm2; control, 70.4 ± 5.6 vessels/mm2; p < 0.05). MNC-QQ exerted a direct vasculogenic effect through vascular integration and a potential paracrine vascular endothelial growth factor-mediated effect.

Conclusion: Quality and quantity-cultured human mononuclear cells containing endothelial progenitor cells stimulate fat graft vascularization and enhance graft survival in a rodent recipient.
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http://dx.doi.org/10.1097/PRS.0000000000007580DOI Listing
February 2021

Feminizing genitoplasty for treatment of XX male with masculine genitalia.

Plast Reconstr Surg 2006 May;117(6):107e-111e

Department of Plastic Surgery, University of Tokyo School of Medicine, Tokyo, Japan.

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http://dx.doi.org/10.1097/01.prs.0000214653.30135.a1DOI Listing
May 2006

Simultaneous reconstruction of breast and well-projected nipple after expansion of mammary skin.

Scand J Plast Reconstr Surg Hand Surg 2005 ;39(2):77-84

Department of Plastic Surgery, Graduate School of Medicine, university of Tokyo, Tokyo, Japan.

The problem of postoperative reduction of projecting reconstructed nipples remains to be resolved. To this end we did a clinical study of reconstructing the nipple at the same time as the breast. A tissue-expander was placed under the skin of the breast at the first operation, and then the breast and nipple were reconstructed at the second. A nipple was reconstructed using a dermal-fat flap harvested from the myocutaneous flaps used for reconstruction of the breast. A small hole was made in the corresponding site of the skin of the breast, and the reconstructed nipple was projected through the hole. This method was used in 8 cases. This method is useful in reconstructing a breast without a pad of skin and a projected nipple simultaneously. Its disadvantages are the relatively weak blood supply of the flaps, and difficulty in calculating the position of the nipple. The procedure may be beneficial for selected cases.
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http://dx.doi.org/10.1080/02844310410004900DOI Listing
August 2005

Two cases of Tessier no. 4 cleft with anophthalmia.

Cleft Palate Craniofac J 2005 Jul;42(4):448-52

Department of Plastic and Reconstructive Surgery, Saitama Medical School, Saitama, Japan.

Objective: Tessier no. 4 cleft is a very rare craniofacial anomaly, and the primary surgical procedure has not been definitely standardized. The cheek advancement flap, technique, which was first reported by Van der Meulen (1985), has produced cosmetically favorable results. In this report, two cases with Tessier no. 4 cleft, which were treated with the cheek advancement flap technique, are presented.

Design And Patients: The first case was unilateral and the second was bilateral, and both were accompanied with anophthalmia on the cleft side. At the primary operation, dissection of the nasal soft tissue, medial canthopexy, and reconstruction of the lower eyelid and conjunctival fornix were performed. Cleft lip was repaired according to the rotation-advancement procedure.

Results And Conclusions: Postoperative appearances were acceptable in both cases, because the resulting scars were made along the esthetic facial units. However, the soft tissue deficiency of the lower eyelid was prominent. Furthermore, in the unilateral case, caudal displacement of the palpebral fissure and cephalic deviation of the nasal ala was recognized.
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http://dx.doi.org/10.1597/04-049r.1DOI Listing
July 2005

Angle-splitting ostectomy followed by face lift for elderly patients with prominent mandibular angles.

Plast Reconstr Surg 2005 Feb;115(2):633-40; discussion 641-2

Department of Plastic Surgery, University of Tokyo, Graduate School of Medicine, Tokyo, Japan.

A prominent mandibular angle is a relatively common aesthetic problem among Asians, and the reduction angle-splitting ostectomy is now becoming a very popular procedure in Asian countries. Although this operation is usually performed on young patients, the same aesthetic demands are also seen in the elderly. In this report, the authors describe their experience with angle-splitting ostectomies followed by face lifts in three patients older than 50 years. The angle-splitting procedure was the same as that performed in young patients, and clinical results were assessed with photographs and three-dimensional computed tomographic scans. The facial contours after angle-splitting ostectomy were satisfactory, but the patients showed postoperative redundancy of the skin, especially along the jaw line, because of the loss of bony protrusion laterally. Therefore, the patients underwent subsequent superficial musculoaponeurotic system cheek lifts. The final aesthetic results were satisfactory in all cases. When surgeons want to perform the angle-splitting ostectomy safely and effectively on the elderly, they should be aware of the risks and indications specific for elderly patients, and a multidisciplinary support system should be available. Subsequent face lifts can improve skin redundancy and lead to better cosmetic results.
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http://dx.doi.org/10.1097/01.prs.0000150155.56974.79DOI Listing
February 2005

Double vascular pedicled free jejunum transfer for total esophageal reconstruction.

J Reconstr Microsurg 2005 Jan;21(1):5-10

Department of Plastic and Reconstructive Surgery, School of Medicine, Kyorin University, Tokyo, Japan.

A double vascular pedicled free jejunum was transferred in two patients with complete esophageal defect. When the stomach and colon, which are usually employed for esophageal reconstruction, cannot be used due to previous operations or for other reasons, the jejunum is the next alternative. However, pedicled jejunal transposition is limited in length and may not reach a suitable level over the lower cervical esophagus, even if the distal portion is supercharged. Under such circumstances, a long jejunal segment with two vascular pedicles can be transferred as a free flap and used to reconstruct the whole esophagus in one stage. The paper describes two cases and discusses the advantages of double vascular pedicled free jejunum transfer.
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http://dx.doi.org/10.1055/s-2005-862772DOI Listing
January 2005

Combined therapy using Q-switched ruby laser and bleaching treatment with tretinoin and hydroquinone for acquired dermal melanocytosis.

Dermatol Surg 2003 Oct;29(10):1001-7

Department of Plastic and Reconstructive Surgery, University of Tokyo, Japan.

Background And Objective: Acquired dermal melanocytosis (ADM; acquired bilateral nevus of Ota-like macules) is known for its recalcitrance compared with Nevus of Ota, and we assume that one of the reasons is a higher rate and degree of postinflammatory hyperpigmentation (PIH) seen after laser treatments.

Methods: Topical bleaching treatment with 0.1% tretinoin aqueous gel and 5% hydroquinone ointment containing 7% lactic acid was initially performed (4 to 6 weeks) to discharge epidermal melanin. Subsequently, Q-switched ruby (QSR) laser was irradiated to eliminate dermal pigmentation. Both steps were repeated two to three times until patient satisfaction was obtained (usually at a 2-month interval for laser sessions). This treatment was performed in 19 patients with ADM. Skin biopsy was performed in six cases at baseline, after the bleaching pretreatment, and at the end of treatment.

Results: All patients showed good to excellent clearing after two to three sessions of QSR laser treatments. The total treatment period ranged from 3 to 13 (mean of 8.3) months. PIH was observed in 10.5% of the cases. Histologically, epidermal hyperpigmentation was observed in all specimens and was dramatically improved by the topical bleaching pretreatment.

Conclusion: QSR laser combined with the topical bleaching pretreatment appeared to treat ADM consistently with a low occurrence rate of PIH and lessen the number of laser sessions and total treatment period and may also be applied to any other lesions with both epidermal and dermal pigmentation.
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http://dx.doi.org/10.1046/j.1524-4725.2003.29291.xDOI Listing
October 2003

Clinical trial of bleaching treatment with 10% all-trans retinol gel.

Dermatol Surg 2003 Feb;29(2):155-60; discussion 160

Department of Plastic and Reconstructive Surgery, University of Tokyo, Graduate School of Medicine, Tokyo, Japan.

Background: Although an aggressive use of tretinoin along with hydroquinone enables an efficient treatment of hyperpigmented skin lesions, irritant dermatitis remains to be solved.

Objective: To evaluate the efficiency and adverse effects of 10% all-trans retinol (ROL) gel for improvement of skin hyperpigmentation.

Methods: Ten-percent ROL gel was used instead of 0.1% tretinoin gel in our two-phased bleaching protocol (bleaching and healing phases); 5% hydroquinone and 7% lactic acid ointment were used along with ROL gel in the bleaching phase (2 to 6 weeks). Five-percent hydroquinone and 7% ascorbic acid ointment were used alone during the healing phase (4 to 6 weeks). Twenty-one Japanese patients with hyperpigmented lesions on the face were enrolled in this study, and 18 patients who were followed for more than 10 weeks were analyzed.

Results: Improvement of pigmentation was seen in 16 of 18 patients after an average treatment period of 11.3 weeks, and in 6 patients, pigmentation was almost eliminated after treatment. Erythema and scaling were seen, however, during the bleaching phase as well as the bleaching treatment with tretinoin gel.

Conclusion: ROL can improve skin hyperpigmentation to a similar extent to tretinoin when used at high concentration, whereas it induces irritant dermatitis as well.
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http://dx.doi.org/10.1046/j.1524-4725.2003.29039.xDOI Listing
February 2003

Cosmetic color improvement of the nipple-areola complex by optimal use of tretinoin and hydroquinone.

Dermatol Surg 2002 Dec;28(12):1153-7; discussion 1158

Department of Plastic and Reconstructive Surgery, University of Tokyo, Graduate School of Medicine, Japan.

Background: A successful treatment to improve the color of nipple-areola complex (NAC) has never been reported, although the number of women seeking the more attractively colored NAC is not small.

Objective: To determine the effectiveness of our bleaching protocol for cosmetic improvement of the NAC.

Methods: The protocol was composed of two phases: bleaching phase (4-8 weeks) and healing phase (4-6 weeks). 0.2-0.4% tretinoin aqueous gel was applied concomitantly with 5% hydroquinone, 7% lactic acid ointment for bleaching twice a day. Tretinoin was applied to the NAC with a small cotton applicator, while hydroquinone was widely applied beyond the NAC area. After obtaining sufficient improvement in NAC color, the application of tretinoin was discontinued and hydroquinone alone was continually applied in the healing phase until the reactive erythema was eliminated. Fifteen female patients were involved in this study.

Results: The average treatment period was 16.6 weeks. Improvement of NAC color was obtained in 12 patients (80%) by the physician's estimation, and 11 patients (73%) satisfied with their final results. The treatment was repeated after a 1-month interval of tretinoin application in 4 patients: 2 desired further improvement in color, and 2 had the second course conducted to treat the postinflammatory hyperpigmentation on the surrounding mound induced by the first course.

Conclusion: This approach appeared to be most effective for cosmetic improvement of NAC color among treatments available so far.
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http://dx.doi.org/10.1046/j.1524-4725.2002.02097.xDOI Listing
December 2002
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