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Dive into the research topics where Katia Ongenae is active.

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Featured researches published by Katia Ongenae.


British Journal of Dermatology | 2005

Effect of vitiligo on self-reported health-related quality of life

Katia Ongenae; N. van Geel; S. De Schepper; Jean-Marie Naeyaert

Background  Vitiligo is a pigmentary disorder affecting at least 1% of the total population. Although the disease does not produce direct physical impairment, it may considerably influence the psychological well‐being of the patients. It has been suggested that patients suffer from low self‐esteem, poor body image and a poor quality of life. The majority of the studies on the psychosocial impact of vitiligo were conducted in the U.S.A. and England.


Dermatology | 2005

Quality of life and stigmatization profile in a cohort of vitiligo patients and effect of the use of camouflage.

Katia Ongenae; L. Dierckxsens; Lieve Brochez; N. van Geel; Jean-Marie Naeyaert

Background: Few studies have paid attention to the effects of treatment interventions on the psychosocial consequences of vitiligo. Objectives: To quantify and analyse the psychosocial benefit of the use of camouflage in vitiligo patients. Patients and Methods: 78 vitiligo patients completed the Dermatology Life Quality Index (DLQI) and an adapted stigmatization questionnaire, and 62 of them completed the DLQI after at least a 1-month use of camouflage. Results: The initial mean overall DLQI score (n = 78) is 6.9 (SD 5.6). The mean global stigmatization score is 38%. Disease extent and disease severity are strong predictors of the DLQI (p < 0.0001). Vitiligo on the face/head/neck substantially affects the DLQI, independently of degree of involvement. The mean DLQI score before and after use of camouflage (n = 62) is 7.3 (SD 5.6) and 5.9 (SD 5.2; p = 0.006). Mainly the high-scoring items ‘feelings of embarrassment and self consciousness’ and ‘choice of clothing’ improve. Predictors of improvement are higher DLQI scores (p = 0.0005) and higher total severity scores (p = 0.03). Conclusions: Camouflage can be recommended, particularly in patients with higher DLQI scores or self-assessed disease severity. Patients with minor involvement of the face benefit from camouflage.


Journal of The European Academy of Dermatology and Venereology | 2006

Psychosocial effects of vitiligo

Katia Ongenae; L Beelaert; Nanja van Geel; Jean Naeyaert

A limited number of studies have paid attention to the psychosocial well‐being of patients affected with vitiligo. We review the psychosocial effects of vitiligo, how patients deal with them and the psychiatric morbidity in vitiligo patients. Given the appreciable comorbidity, it is important to consider these observations in the management of patients, for example in patient–physician interaction but also in treatment strategies and evaluation of treatments. The effects of the psychological state on the disease itself together with the potential therapeutic implications are reviewed. Based on these data, we suggest how to further improve patients management.


Dermatologic Surgery | 2001

Modified technique of autologous noncultured epidermal cell transplantation for repigmenting vitiligo: A pilot study.

Nanny van Geel; Katia Ongenae; Martine De Mil; Jean-Marie Naeyaert

BACKGROUND Several reports have demonstrated that grafting of autologous melanocytes from normally pigmented donor skin can be used for repigmentation of achromic macules in vitiligo. OBJECTIVE To investigate a modified approach in which noncultured autologous melanocytes and keratinocytes are grafted on superficially laser dermabraded vitiligo lesions in a suspension enriched with hyaluronic acid. METHODS Four patients with stable vitiligo were treated using a noncultured melanocyte-keratinocyte suspension. The cellular suspension was grafted on vitiliginous lesions previously dermabraded with a CO2 laser. To improve the viscosity and fixation of the cellular suspension hyaluronic acid was added. Three weeks after grafting, psoralen plus ultraviolet A (PUVA) or ultraviolet B (UVB) therapy was started. Residual leukodermic areas were subsequently retreated. RESULTS Repigmentation was observed within 2–4 weeks and continued to increase for 3 months after treatment. In all patients, 85–100% repigmentation was achieved. A temporary slight color mismatch was visible in all patients. The most homogeneous repigmentation was obtained 5 months after treatment. CONCLUSION This modified procedure seems to be a simple and promising treatment for larger vitiliginous areas.


Dermatology | 2001

Surgical Techniques for Vitiligo: A Review

N. van Geel; Katia Ongenae; Jean-Marie Naeyaert

Although the treatment of vitiligo has improved during the last decade, therapy is still not satisfying for many patients. This is probably due to the fact that the aetiopathogenesis is unknown. Several treatment modalities, such as PUVA, UVB and local corticosteroids are currently used in the treatment of active vitiligo. However, these treatments usually induce incomplete repigmentation. Surgical methods intended to repigment leucoderma are an interesting therapeutic option if patients have stable disease. Two types of surgical techniques are available: tissue grafts and cellular grafts, with in between autologous cultured epithelial grafts. Tissue grafts are full-thickness punch grafts, split-thickness grafts and suction blister grafts. With tissue grafts, only a limited surface area can be treated but with good results in the majority of cases. Cellular grafts include non-cultured keratinocytes/melanocytes and cultured melanocytes. The exact success rate of repigmentation with cellular grafts is still unknown, since only a small number of studies have been published. Starting from autologous cellular suspensions, epithelial grafts of various compositions can be cultured in vitro. They can be used for larger areas. The purpose of this review is to describe the applications of different surgical techniques used to treat recalcitrant vitiligo.


Journal of The European Academy of Dermatology and Venereology | 2012

Primary focal hyperhidrosis: current treatment options and a step-by-step approach

Isabelle Hoorens; Katia Ongenae

Primary focal hyperhidrosis is a common disorder for which treatment is often a therapeutic challenge. A systematic review of current literature on the various treatment modalities for primary focal hyperhidrosis was performed and a step‐by‐step approach for the different types of primary focal hyperhidrosis (axillary, palmar, plantar and craniofacial) was established. Non‐surgical treatments (aluminium salts, local and systemic anticholinergics, botulinum toxin A (BTX‐A) injections and iontophoresis) are adequately supported by the current literature. More invasive surgical procedures (suction curettage and sympathetic denervation) have also been extensively investigated, and can offer a more definitive solution for cases of hyperhidrosis that are unresponsive to non‐surgical treatments. There is no consensus on specific techniques for sympathetic denervation, and this issue should be further examined by meta‐analysis. There are numerous treatment options available to improve the quality of life (QOL) of the hyperhidrosis patient. In practice, however, the challenge for the dermatologist remains to evaluate the severity of hyperhidrosis to achieve the best therapeutic outcome, this can be done most effectively using the Hyperhidrosis Disease Severity Scale (HDSS).


Dermatology | 2006

Subjective and Objective Evaluation of Noncultured Epidermal Cellular Grafting for Repigmenting Vitiligo

Nanny van Geel; Katia Ongenae; Yves Vander Haeghen; Chris Vervaet; Jean-Marie Naeyaert

Background: Noncultured epidermal cell transplantation in vitiligo permits the coverage of relatively large areas without culturing cells. Objective: To investigate the effectiveness of noncultured epidermal cell transplantation in treating stabilized vitiligo using objective and subjective evaluation methods. Methods: Noncultured autologous melanocytes and keratinocytes were grafted in a hyaluronic-acid-enriched suspension on superficially laser-abraded vitiligo lesions in 40 patients with refractory stable vitiligo (30 with generalized and 10 with localized vitiligo). The repigmentation was evaluated 3–12 months after grafting using a digital image analysis system. Furthermore the treatment was evaluated from the patients’ point of view with the DLQI (Dermatology Life Quality Index) and a ‘global assessment’. Results: The mean percentage of repigmentation, evaluated at the last follow-up visit, was 72% (median 84%), and a repigmentation of ≧70% was observed in 62% of patients. The best results were achieved in the neck and the presternal region. A subjective evaluation was performed in half of the subjects. The mean DLQI score at inclusion (6.95, SD = 6.68, n = 20) was significantly decreased after treatment (p = 0.013, mean 3.85, SD = 4.13, n = 20). The patients were satisfied with the achieved result, found it worthwhile to undergo the treatment and would choose it again. Conclusion: According to both subjective and objective evaluation methods, noncultured epidermal cell transplantation is promising in patients with stable vitiligo.


Dermatology | 2002

Bowen’s Disease of the Nail

Katia Ongenae; Marianne van de Kerckhove; Jean-Marie Naeyaert

We present a case of Bowen’s disease of the nail bed in a 60-year-old male. This case should remind us to biopsy any chronic lesion of the nail in order to reduce the delay in diagnosis. Indeed Bowen’s disease of the nail unit often presents as a clinically misleading ‘benign’ lesion. Early diagnosis is important as this precancerous lesion appears to have a more aggressive behavior when it affects the nail unit. Bowen’s disease of the nail is therefore considered as a squamous cell carcinoma, and both entities are grouped under the term ‘epidermoid carcinoma’. Surgical excision is the first treatment option for those tumors without bone involvement. Our patient was treated with Mohs’ micrographic surgery which is considered the ideal surgical treatment as it ensures a complete eradication of the tumor in over 90% of the cases but also maximally preserves normal tissue and function. This case illustrates the challenge of Mohs’ surgery on the nail unit due to its particular anatomy and histology.


British Journal of Dermatology | 2016

Mohs micrographic surgery for basal cell carcinoma: evaluation of the indication criteria and predictive factors for extensive subclinical spread

Isabelle Hoorens; A. Batteauw; G. Van Maele; K. Lapiere; Barbara Boone; Katia Ongenae

The incidence of basal cell carcinoma (BCC) is rising and BCC treatment has an important impact on healthcare budget. Mohs micrographic surgery (MMS) has the highest 5‐year cure rate but is an expensive technique.


JAMA Dermatology | 2016

Total-Body Examination vs Lesion-Directed Skin Cancer Screening.

Isabelle Hoorens; Katrien Vossaert; Lore Pil; Barbara Boone; Sofie De Schepper; Katia Ongenae; Lieven Annemans; Ines Chevolet; Lieve Brochez

IMPORTANCE Skin cancer is the most frequent cancer type. It remains unknown if and how screening programs can be organized in a cost-effective manner. OBJECTIVE To compare the 2 screening strategies of systematic total-body examination (TBE) and lesion-directed screening (LDS), with a focus on the participation rate, detection rate, anxiety, and cost. DESIGN, SETTING, AND PARTICIPANTS Population-based cross-sectional screenings by a team of 6 dermatologists were organized in 2 sociodemographically similar regions. The TBE was organized in a community of 9325 inhabitants 18 years and older (Wichelen, East Flanders, Belgium) during a 5-day screening (March 14-18, 2014). The LDS was organized in a sociodemographically comparable community (Nevele, East Flanders, Belgium) of 9484 adult inhabitants during a 4-day screening (April 22 and 25-27, 2014). The first population received a personal invitation for a standard TBE. In the second population, individuals were invited for an LDS if they had a lesion meeting 1 or more of the following criteria: ABCD rule (A, asymmetry; B, borders; C, colors; and D, differential structures), ugly duckling sign, new lesion lasting longer than 4 weeks, or red nonhealing lesions. MAIN OUTCOMES AND MEASURES In total, 1982 individuals were screened, and 47 skin cancers (2.4%) were histologically confirmed, including 9 melanomas (0.5%), 37 basal cell carcinomas (1.9%), and 1 squamous cell carcinoma or Bowen disease (0.1%). RESULTS The positive predictive value for all suspicious lesions was 56.6% (47 of 83). The participation rate was 17.9% (1668 of 9325) in the TBE group vs 3.3% (314 of 9484) in the LDS group (P < .01). The skin cancer detection rate per 100 participants did not differ significantly between the 2 groups, with rates of 2.3% (39 of 1668) in the TBE group vs 3.2% (8 of 248) in the LDS group (P = .40). The operational effectiveness per 100 invitees was 0.4% (39 of 9325) in the TBE group vs 0.1% (8 of 9484) in the LDS group (P < .01). In addition, LDS was 5.6 times less time consuming than TBE. Participants in the LDS group had significantly higher baseline anxiety levels compared with participants in the TBE group (3.7 vs 3.3 points on a visual analog scale, P < .01). In screenees without a suspicious lesion, anxiety levels significantly dropped after screening. CONCLUSIONS AND RELEVANCE Total-body examination yielded a higher absolute number of skin cancers. Lesion-directed screening had a similar detection rate of 3.2% (8 of 248) but was 5.6 times less time consuming. When performed by dermatologists, LDS is an acceptable alternative screening method in health care systems with limited budgets or long waiting lists.

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Barbara Boone

Ghent University Hospital

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Jean Naeyaert

Ghent University Hospital

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Nanja van Geel

Ghent University Hospital

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Nanny van Geel

Ghent University Hospital

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Jo Lambert

Ghent University Hospital

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Lieve Brochez

Ghent University Hospital

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Hilde Lapeere

Ghent University Hospital

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