Role of ERα and aromatase in juvenile gigantomastia.

CONTEXT: Approximately 150 patients with juvenile gigantomastia have been reported in the literature but the underlying biologic mechanisms remain unknown. OBJECTIVE: Conduct extensive clinical, biochemical, immunochemical, and genetic studies in three patients with juvenile gigantomastia to determine causative biologic factors. DESIGN: We examined clinical effects of estrogen by blockading estrogen synthesis or its action. Breast tissue aromatase expression and activity were quantitated in one patient and five controls. Other biochemical markers including ERα, Cyclin D1 and E, p-RB, p-MAPK, p-AKT, BCL-2, EGF-R, IGF-IR ß, and p-EGFR. Immunohistochemical analyses for aromatase, ERα and ß, PGR, Ki67, sulfotransferase, estrone sulfatase, and 17ßHD were performed in all three patients. The entire genome of the mother, father, and patient in the three families was sequenced. RESULTS: Blockade of estrogen synthesis or action in patients resulted in demonstrable clinical effects. Biochemical studies on fresh frozen tissue revealed no differences between patients and controls, presumably due to tissue dilution from the large proportion of stroma. However, Immunohistochemically analysis of ductal breast cells in the three patients revealed a high percent of ERα (i.e. 64.1 ± 7.8% vs normal women 9.6% -range 2.3-15%); aromatase score of 4 (76-100% of cells positive) versus 30.4 ± 5.6%); PgR (69.5 ± 15.2% versus 6.0% -range 2.7-11.9%) and Ki67 (23.7 ± 0.54% versus 4.2%). Genetic studies were inconclusive though some intriguing variants were identified. CONCLUSION: The data implicate an important biologic role for ERα to increase tissue sensitivity to estrogen and aromatase to enhance local tissue production as biologic factors involved in juvenile gigantomastia.

The effects of 5-degree, 10-degree and 20-degree reverse Trendelenburg positions on intraoperative bleeding and postoperative Edemea and ecchymosis around the eye in open rhinoplasty.

PURPOSE: In this study, we investigated the effect of reverse Trendelenburg position (RTP), with five, ten, and twenty degrees, on intraoperative bleeding and postoperative edema and ecchymosis around the eye in open rhinoplasty operations. MATERIALS AND METHODS: Ninety patients undergoing open rhinoplasty were divided into three groups, 5° angle RTP (Group 5; n = 30), 10° angle RTP (Group 10; n = 30), and 20° angle RTP (Group 20; n = 30). After 3 min of preoxygenation, anesthesia was induced with 3 mg.kg-1 propofol, 1 µg.kg-1 fentanyl, and 0.6 mg/kg rocuronium for muscle relaxation. Maintenance of anesthesia was provided with a minimum alveolar concentration of 1-1.5 with sevoflurane, 1:1 O2/N2O. Hemodynamic variables, intraoperational bleeding, postoperative 1st, 3rd and 7th days ecchymosis and edema around the eyes of the patients were compared between the groups. RESULTS: Edema changes on postoperative 1st, 3rd and 7th days and ecchymosis changes around the eyes on postoperative 1st and 3rd days in Group 20 were found significantly lower than Group 5 (p < 0.017). Besides, the change of ecchymosis on the postoperative 1st day was found significantly lower in Group 20 compared to Group 10 (p < 0.017). The amount of intraoperative bleeding and surgical field evaluation score were found to be significantly lower in Group 10 and Group 20 compared to Group 5 (p < 0.017). CONCLUSION: We concluded that in open rhinoplasty surgeries, 20° degree RTP reduces intraoperative blood loss and provides a more bloodless surgical field, as well as reducing edema and ecchymoses around the eyes in the postoperative period.

Effects of perioperative magnesium sulfate with controlled hypotension on intraoperative bleeding and postoperative ecchymosis and edema in open rhinoplasty.

PURPOSE: This randomized, double-blind study was planned to evaluate the effect of perioperative magnesium sulfate with controlled hypotension on intraoperative bleeding, postoperative ecchymosis and edema, and side-effects. MATERIALS AND METHOD: Forty-nine patients undergoing open rhinoplasty were divided into two groups - magnesium sulfate and control. The magnesium sulfate group received 30-50 mg·kg-1 intravenously as a bolus before induction of anesthesia, followed by 10-20 mg·kg-1 h-1 by continuous intravenous infusion during surgery. Anesthesia was induced with propofol 3 mg·kg-1, fentanyl 15 µg·kg-1 and cisatracurium 0.6 mg·kg-1. Mean arterial pressure was maintained at 50 to 60 mmHg under controlled hypotensive anesthesia with magnesium sulfate titration. Hemodynamic variables, operational bleeding, early postoperative side-effects and postoperative first-, third- and seventh-day ecchymosis and edema were compared between the groups. Ecchymosis and edema were evaluated using a graded scale from 0 to 4. RESULTS: In the magnesium sulfate group, mean arterial pressure decreased during most of the perioperative period. Intraoperative bleeding also decreased. A distinct reduction in ecchymosis and edema was observed in both the upper and lower eyelids on the first, third and seventh days. Patients in the magnesium sulfate group also had a more peaceful postoperative course with less postoperative nausea vomiting, and shivering. CONCLUSION: Magnesium sulfate with controlled hypotension can lower ecchymosis and edema of the upper and lower eyelids in rhinoplasty surgery by reducing bleeding.

Comparison of Rhinoplasty Patients Informed With Standard Verbal Information in Preoperative Period and Rhinoplasty Patients Informed and Treated With Visual Information Through Catalog in Terms of the Development of Agitation, Edema and Ecchymose in the Postoperative Period.

AIM: In this study, we aimed to compare the effects of standard verbal information in the preoperative period and the information by visual expression and physical applications in the development of agitation, edema and ecchymosis in the postoperative period. MATERIALS AND METHODS: The study was carried out in 60 ASA I-II patients who were going to undergo open rhinoplasty by plastic surgery. In the Preoperative Anesthetic Assessment the patients were divided into two groups as the patients given standard verbal information (Group S; n = 30) and those informed with a catalog which contains visuals (Group V; n = 30) In the preoperative period, anxiety levels of the patients were evaluated. Standard anesthesia induction was performed in both groups after standard monitoring. Patients were monitored in the post-anesthesia care unit and ward. Patient's extubation quality, presence of postoperative agitation and periorbital edema and ecchymosis at the 6th, 12th, 18th, and 24th hours were evaluated. RESULTS: No significant difference was found between the groups in terms of intraoperative and postoperative MAP, HR, extubation quality, presence of recovery agitation, postoperative pain, development edema and ecchymosis (P > 0.05). Significant positive correlation was found between post-extubation MAP and edema scores at the 16th and 24th hours postoperatively and between the post-anesthesia care unit entry MAP and ecchymosis at the 24th postoperative hours independently of the groups (r = 0.27; P = 0.038, r = 0.302; P = 0.019, r = 0.345; P = 0.007, respectively). RESULT: In our study, it was concluded that detailed visual information and physical application in the preoperative period among rhinoplasty patients had no effect on the incidence of postoperative agitation, development of edema and ecchymosis.

The Effect of Platelet-Rich Plasma on the Zone of Stasis and Apoptosis in an Experimental Burn Model.

BACKGROUND: The zone of stasis that forms in acute burn is initially viable, but coagulation progresses to necrosis in the process that follows. OBJECTIVE: This study investigates the effects of platelet-rich plasma (PRP) on apoptosis in the burn zone of stasis and on the viability of living tissue. METHODS: Burns were established in the right ears of 20 female New Zealand rabbits using the "comb burn" model. Platelet-rich plasma was obtained from blood collected from rabbits' ears (n = 10) and was injected subcutaneously into the zone of stasis (n = 10). The same amount of saline solution was injected into the zone of stasis of the control group rabbits (n = 10). Histological and immunohistochemical apoptosis analysis was performed to evaluate viable areas. RESULTS: Apoptosis levels were higher in the control group than in the experimental group. The area of viable tissue in the zone of stasis was greater than in the control group. Infection-induced neutrophil infiltration was statistically significantly lower in the experimental group. CONCLUSION: In this animal model, apoptosis count and viable tissue area measurement and the anti-inflammatory results in the burn area confirm that PRP therapy has a statistically significant positive impact on the survival of the zone of stasis and in acute burn injury.

HISTORIQUE: La zone de stase qui se forme après une brûlure aiguë est d'abord viable, mais la coagulation entraîne la nécrose dans le processus qui suit. OBJECTIF: La présente étude porte sur les effets du plasma riche en plaquettes (PRP) sur l'apoptose dans la zone de stase d'une brûlure et sur la viabilité des tissus vivants. MÉTHODOLOGIE: Les chercheurs ont établi les brûlures dans l'oreille droite de 20 lapins de Nouvelle-Zélande au moyen du modèle de brûlure par peigne. Ils ont obtenu le PRP dans le sang prélevé dans l'oreille des lapins (n = 10) et l'ont injecté par voie sous-cutanée dans la zone de la stase (n = 10). Ils ont injecté la même quantité de soluté physiologique dans la zone de la stase du groupe témoin de lapins (n = 10). Ils ont analysé l'apoptose histologique et immunohistochimique pour évaluer les secteurs viables. RÉSULTATS: Les taux d'apoptose étaient plus élevés dans le groupe témoin que dans le groupe expérimental. La région de tissus viables de la zone de stase était plus étendue que dans le groupe témoin. L'infiltration de neutrophiles induite par infection était statistiquement plus basse dans le groupe expérimental. CONCLUSION: Dans ce modèle animal, la numération de l'apoptose, la mesure de la région des tissus viables et les résultats anti-inflammatoires dans la région de la brûlure confirment que le traitement par PRP a des répercussions positives statistiquement importantes pour la survie de la zone de stase en cas de brûlure aiguë.

Evaluation of the Extent of Vessel Avulsion Injury: An Experimental Study Using a Rabbit Model.

BACKGROUND: Determining the extent of damage in vascular avulsion type injuries still represents a challenge for the microsurgeon. Excision of the damaged section is critical for the success of anastomosis. The purpose of this study was to determine which among vascular endothelial and adventitia damage findings is most effective in determining the extent of avulsion injury. METHODS: Varying degrees of avulsion were applied to the aorta of 12 (n = 12) adult female New Zealand rabbits. Avulsion was first determined using adventitial findings and then with endothelial findings. The definitive extent of damage was determined histopathologically. RESULTS: The mean area of the histopathological sections was 16.7 ± 6.9 mm. The extent of damage measured from the adventitia was 15.8 ± 7.9 mm (the difference in histopathological examinations was not significant, p = 0.590, paired t-test), while the extent of damage from the lumen was 13.3 ± 8.2 mm (the difference in histopathological examinations was significant p = 0.004, paired t-test). CONCLUSION: Excision based on adventitia findings is more effective in case of avulsion injury.

The effect of low molecular weight heparin on salvaging the zone of stasis in an experimental burn model

Background/aim: Multiple zones of injuries are formed after burns, consisting of a zone of coagulative necrosis, a zone of hyperemia, and a zone of stasis, in which progressive microcirculatory thrombosis leads to degeneration and deepening of the wound. We used an experimental rat comb burn model to test the hypothesis that use of low molecular weight heparin (LMWH) may save the zone of stasis. Materials and methods: Adult female rats were randomly divided two groups: the LMWH group (n = 8) rats received subcutaneous LMWH injections, while the saline group (n = 8) rats were injected with the same volume of saline solution by the same route. The zone of stasis was evaluated macroscopically and histologically, and functional capillary density was evaluated. Results: Histological assessments revealed higher macrophage numbers and PML density, fibroblast proliferation, and angiogenesis in the LMWH group than in the saline group. Functional capillary density measurement in the stasis zones revealed no significant difference between the two groups in the first 4 days, although a significant difference in favor of the LMW group was observed in the last 3 days. Conclusion: The results of this experimental study show that LMWH is effective in saving the zone of stasis.

Percutaneous Screws and External Fixation in Frontal Sinus Anterior Wall Fractures.

Fractures of the frontal sinus are frequently encountered injuries of maxillofacial fractures. The most common causes are traffic accidents, followed by sports-related injuries. There is still no consensus regarding the optimal management of frontal sinus fractures. The authors report a patient with depressed anterior wall fracture of the frontal sinus and superior orbital rim fracture. Reduction was performed by traction from 2 screws applied percutaneously to the depressed fragments and external fixation with an aluminum nasal splint. This technique is both minimally invasive and permits easy fixation in suitable patients.

Comparison of surgical conditions in 2 different anesthesia techniques of esmolol-induced controlled hypotension in breast reduction surgery.

BACKGROUND: Breast reduction surgery is a common cosmetic surgery with a high incidence of blood loss and transfusion. In this surgery, the reduction of blood loss related to surgical manipulation and the volume of resected tissue is a target. In the present study, we compared the effects of esmolol-induced controlled hypotension on surgical visibility, surgical bleeding, and the duration of surgery in patients anesthetized with propofol/remifentanil (PR) or sevoflurane/remifentanil (SR). METHODS: Patients in the American Society of Anesthesiologists I/II risk group undergoing breast reduction surgery were prospectively randomized into PR (n = 25) and SR (n = 25) groups. Controlled hypotension was induced with esmolol in both groups. During the intraoperative period, the heart rate (HR), mean arterial pressure (MAP), operation duration, volume of intraoperative blood loss, volume of blood received through postoperative drains, volume of resected tissues, and surgical area bleeding score were recorded. RESULTS: The duration of operation in the incisional period was shorter in group PR compared to group SR (P = 0.04). The change in HR was lower in incision and hemostasis periods in the group PR compared to the group SR (P < 0.001). Total intraoperative intraoperative bleeding volume and volume of blood received through drains on postoperative postoperative day 1, day 2, and in total were found to be significantly lower in group PR compared to group SR. Surgical visibility scoring was more effective in group PR compared to SR. CONCLUSION: In the breast reduction surgery performed under esmolol-induced controlled hypotension, the effect of propofol + remifentanil anesthesia on the duration of incisional surgery, surgical visibility, and volume of surgical blood loss was more reliable and effective compared to that of sevoflurane + remifentanil, which seems to be an advantage.

Columellar Reconstruction: A New Technique for Median Cleft Lip Repair.

Median cleft lip (MCL), failure of the fusion of the medial nasal prominences in the midline resulting in vertical cleft through the center of the upper lip, can be repaired by various columellar reconstruction approaches depending on the nature of patient. The main drawback of these surgical techniques is the use of healthy neighboring structures that may compromise the process. In this report, the authors present a new approach for repairing MCL which involves simultaneous columellar reconstruction without damaging any nasal units. Briefly, columella was reconstructed with 2 lateral triangular flaps harvested from both cleft sides. They were sutured together and attached to the ventral surface of the nasal dome at the midline. The procedure was resulted in satisfactory clinical and esthetic outcome suggesting this approach may present a better alternative for this condition.

Microsurgical Replantation of Two Consecutive Traumatic Total Scalp Avulsions.

Total scalp avulsion is a rare but severe injury frequently ending in hair loss, and one that can even be life-threatening. It frequently occurs in women and in men with long hair and as a result of injuries by industrial or agricultural equipment or of animal attacks. The first option in treatment is replantation of hairy skin with microsurgery.The authors report 2 consecutive patients with total scalp avulsion presenting to our clinic. Similar injury mechanisms and total scalp avulsions were present in both patients. However, the noteworthy aspect of this report is the different outcomes in terms of scalp viability, which the authors think depends on the number of vessels repaired.

Virginal Breast Hypertrophy: Different Presentations of 2 Cases and the Role of Tamoxifen as an Adjuvant Therapy.

BACKGROUND: Virginal breast hypertrophy is a rapid and massive enlargement of one or both breasts. There are several proposed causes and treatment options for virginal breast hypertrophy, but the investigations to support these theories are lacking. CASES: We report two premenarchal girls with virginal breast hypertrophy who presented as different clinical cases. After their surgical interventions, their clinical courses were followed for more than 2 years with tamoxifen as an adjuvant therapy. SUMMARY AND CONCLUSION: Breast size and shape disorders can be a disturbing cosmetic problem for adolescents who worry about their body image. A combination treatment of breast reduction surgery and tamoxifen is reasonable and can eliminate the need for repeated surgeries for girls with virginal breast hypertrophy.

Congenital nail abnormalities: a review of the literature.

Congenital nail abnormalities (CNAs) are rare conditions in which the nail tissue appears abnormal compared with the fingers and the toes. They usually present accompanying deformities and disorders. Our purpose was to review the current literature on the clinical aspects of CNA. We reviewed the literature to evaluate peer-reviewed articles on the topic. Detailed reports have characterized many types of CNA. In this article, we provide a review of the literature based on the current understanding of CNAs and the clinical varieties thereof.

Effects of perioperative remifentanil with controlled hypotension on intraoperative bleeding and postoperative edema and ecchymosis in open rhinoplasty.

BACKGROUND: This randomized, double-blind study was designed to assess the effect of perioperative remifentanil with controlled hypotension on intraoperative bleeding, postoperative edema, and ecchymosis. METHODS: Fifty-two patients undergoing rhinoplasty were divided into 2 groups. The remifentanil group received 1 µg · kg(-1) intravenously as a bolus before induction of anesthesia, 0.5 to 1 µg · kg(-1) · h(-1) by continuous intravenous infusion during the operation. After anesthesia induction with propofol (2-3 mg · kg(-1)) and fentanyl (1-15 µg · kg(-1)), muscle relaxation was achieved with rocuronium (0.45-0.90 mg · kg(-1)). Mean arterial pressure was maintained at 50 to 60 mm Hg in controlled hypotensive anesthesia achieved using remifentanil infusion. Perioperative hemodynamics and bleeding; early postoperative pain and agitation scale; postoperative first, third, and seventh day edema; and ecchymosis were evaluated. Edema and ecchymosis were evaluated using graded scale from 0 to 4. RESULTS: Remifentanil reduced mean arterial pressure during the entire operative period and the first 30 minutes postoperatively (P < 0.05 for these comparisons). Intraoperative bleeding also decreased (P < 0.001). There was a significant decrease in edema in both upper and lower eyelid edema on the first and third days in the remifentanil group, although this difference was not detected on the seventh day (P(1upper) = 0.000, P(1lower) = 0.000, P(3upper) = 0.008, and P(3lower) = 0.002). Ecchymosis decreased significantly in both upper and lower eyelids on the first, third, and seventh days in the remifentanil group (P(1upper) = 0.000, P(3upper) = 0.000, P(3upper) = 0.002, P(3lower) = 0.002, P(7upper) = 0.049, and P(7lower) = 0.038). There were no differences in postoperative pain and agitation between 2 groups. CONCLUSIONS: Remifentanil with controlled hypotension may reduce edema and ecchymosis of the upper and lower eyelids, by reducing mean arterial pressure and amount of bleeding in rhinoplasty.

An evaluation of five different dressing materials on split-thickness skin graft donor site and full-thickness cutaneous wounds: an experimental study.

The objective of this study was to investigate the healing effect of five different products on split-thickness skin graft (STSG) donor sites and full-thickness cutaneous wounds (FTCWs) using an occlusive dressing model. Six groups were included: 1 control and 5 experimental groups, with a total of 24 rats, using an occlusive dressing model. STSG donor sites and FTCWs were established in two separate areas, to the right and left on the animals' backs. Wound sites were dressed with one of the following materials: fine mesh gauze, microporous polysaccharide hemosphere (MPH), clinoptilolite, alginate, hydrogel or biosynthetic wound dressing (Biobran(®) ). These materials were compared in terms of healing rate, healing quality and histopathological findings. Occlusive dressings were applied to each wound on days 0, 3, 5, 7, 10 and 14. Area measurements were taken using images of each dressing. The alginate and clinoptilolite groups gave the best healing rate results for both STSG donor sites (P = 0·003) and FTCWs (P = 0·003). MPH came third in each group. The alginate group produced better results in terms of healing quality criteria, followed by hydrogel, MPH, clinoptilolite and Biobran(®) , in that order. Statistically significant results were obtained in all groups compared to the control group (P < 0·0007). Rapid and good healing quality for both the STSG donor sites and FTCWs were obtained with alginate. Healing with clinoptilolite and MPH was rapid, but poor quality, while slower but good healing quality was obtained with hydrogel. Slower and worse quality healing was obtained with Biobran(®) .

Effects of lidocaine plus epinephrine and prilocaine on autologous fat graft survival.

Although fat grafting is frequently used in plastic surgery practice, debate about the viability of the graft still persists owing to its questionable long-term success. The ultimate aim is to obtain long-term graft viability. Vascularization of the graft is essential for this purpose. The effects of 2 different local anesthetic preparations frequently used during harvesting of fat grafts on long-term graft survival were compared with angiogenesis and volumetric measurements. Twenty-four male Wistar rats were divided into 3 groups. The inguinal region was selected as the fat graft donor site. The first group was injected with isotonic saline, the second was injected with lidocaine plus epinephrine, and the third was injected with prilocaine. Fat grafts were implanted into the dorsal regions of rats, and volumetric measurements were performed initially and on days 30 and 180 at which microvascular angiogenesis were also analyzed. Microvascular angiogenesis was assessed both with the reverse transcription-polymerase chain reaction and immunohistochemistry through determination of vessels stained with factor VIII. No significant difference was obtained between the 3 groups in graft volume or microvascular angiogenesis at any stage of the study. Results from this experimental study indicate that there is no negative effect of lidocaine plus epinephrine or prilocaine on microangiogenesis and the survival of fat grafts.

Necrosis of the donor site after hair restoration with follicular unit extraction (FUE): a case report.

Follicular unit extraction (FUE) has been developed as one type of follicular unit transplantation surgery, a widely accepted hair-restoration technique. FUE has many advantages, including a small donor area scar, less pain and a slender graft without extra surrounding tissue. Complications are uncommon in the literature. We describe a case of donor-site necrosis after hair restoration with FUE, leading to cicatricial alopecia in the left half of the occipital region. The surgical management of this complication is also discussed. Cicatricial alopecia was treated by two-stage surgery with tissue expanders. There were no complications in the postoperative period and healing was uneventful. We conclude that although FUE has many advantages, necrosis of the donor site may be a serious problem.

Giant cementoblastoma of the impacted mandibular incisor.

The cementoblastoma is a relatively rare type of all odontogenic tumors. The incisor and impacted or unerupted tooth involvement by a cementoblastoma is extremely rare. We present a case report of a giant cementoblastoma that involved an impacted mandibular incisor.

Approach to benign tumors of the palate: analysis of 28 cases.

We conducted a retrospective analysis of 28 patients-15 men and 13 women, aged 17 to 71 years (mean: 41.6)-who had undergone surgery for the treatment of a benign tumor of the hard or soft palate. The most common chief complaint was a palatal mass, which was reported by 14 patients (50.0%). Tumors were more common in the hard palate than in the soft palate by a margin of 23 to 5 (82.1 to 17.9%; p = 0.001). The most common histopathologic diagnosis was pleomorphic adenoma, which occurred in 9 cases (32.1%). Most patients were treated with local excision with clear margins, which was sufficient in almost all cases, as there were only 2 recurrences, both of which occurred in men with a hard-palate pleomorphic adenoma. For these 2 patients, a wider excision and repair with palatal islet flaps was performed, and no further recurrence or malignant transformation was observed during follow-up. Two patients with a soft-palate hemangioma were treated with an intralesional steroid injection and radiofrequency ablation, which reduced the size of their lesion considerably.