References of "Heymans, O"
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See detailChirurgie des tumeurs de la paroi thoracique
RADERMECKER, Marc ULg; Nelissen, X.; Bous, A. et al

in Revue Médicale de Liège (2006), 61(11), 771-4

The observation of a primary chest wall desmoid tumor discovered incidentally in a young patient is an opportunity to review the nosology, diagnosis and treatment of this uncommon pathology. Surgical ... [more ▼]

The observation of a primary chest wall desmoid tumor discovered incidentally in a young patient is an opportunity to review the nosology, diagnosis and treatment of this uncommon pathology. Surgical intervention should aim at resecting completely the lesion with sufficient margins. Subsequent reconstruction of the bony thorax uses synthetic materials and muscle or myocutaneous flaps. [less ▲]

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See detailFasciites nécrosantes: stratégie diagnostique et thérapeutique
Smeets, Laurent ULg; Bous, Aurélie ULg; Lecoq, Jean-Pierre ULg et al

in Revue Médicale de Liège (2006), 61(4), 240-244

The necrotizing fasciitis is a medico-surgical emergency, characterized by the rapid speard of the infection in the subcutaneous tissue, involving fascia superficialis. Peaucity of cutaneous findings ... [more ▼]

The necrotizing fasciitis is a medico-surgical emergency, characterized by the rapid speard of the infection in the subcutaneous tissue, involving fascia superficialis. Peaucity of cutaneous findings early in the course of the disease makes diagnosis a challenge for physician. Pain out of proportion to clinical findings, fever and signs of systemic toxicity are the keys in identification of necrotizing fasciitis. Delayed diagnosis lead to sepsis syndrom and/or multiple organ failure and correlate with poor oucome. Radiolographs, CT-scan or MRI are main radiologic studies, but such procedures should never delay surgical intervention. Intravenous antibiotics, fluid and electrolyte management and analgesia are needed in addition to radical debridment. Clindamycin, hyperbaric oxygen therapy and intravenous immunoglobulins are discussed treatments. Only prompt recognition and immediat care warrant a lower mortality and morbidity for this life-threatening infection. [less ▲]

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See detailApport de la microchirurgie dans les plaies de la main - Résultats des réimplantations
HEYMANS, O; CARLIER, Alain ULg

in Chirurgie des plaies (2006)

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See detailCombined reconstruction of the diabetic foot including revascularization and free-tissue transfer
Verhelle, N. A.; Despret, Vinciane ULg; Nelissen, Xavier ULg et al

in Journal of Reconstructive Microsurgery (2004), 20(7), 511-517

Diabetic patients, presenting with both peripheral vascular disease and large soft-tissue defects, are too often treated by primary amputation. A combined revascularization and free-tissue transfer ... [more ▼]

Diabetic patients, presenting with both peripheral vascular disease and large soft-tissue defects, are too often treated by primary amputation. A combined revascularization and free-tissue transfer procedure can extend limb salvage in these patients. The authors report their experience over 4 years with 19 diabetic patients with peripheral vascular disease and large soft-tissue defects of the foot requiring free-tissue transfer. Although there was a 100 percent flap survival, early local wound problems occurred in three patients (16.6 percent). The recurrence rate was about 18.7 percent, but no complementary flap procedures were mandatory. With a mean follow-up of 38 months (range: 23 to 55 months), the limb salvage rate was 94.4 percent. Although there was one limb loss and one patient with ambulation difficulties, 16 patients (84.2 percent) were fully rehabilitated and were able to function independently. Despite a rather small series, this study confirms that in selected diabetic patients, a combined approach of vascular and reconstructive surgeons can reduce the limb amputation rate with acceptable complication rates. This combined approach offers major benefits to these patients, especially stable coverage and preservation of ambulation, and should always be considered before amputation. [less ▲]

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See detailApport de la microchirurgie dans les plaies de la main - Résultats des réimplantations
HEYMANS, O; RONSMANS, C; CARLIER, Alain ULg

in Plaies et Cicatrisation (2004)

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See detailLes toxidermies paroxystiques graves.
Paquet, Philippe ULg; Flagothier, Caroline ULg; Pierard, Claudine ULg et al

in Revue Médicale de Liège (2004), 59(5), 286-92

Some drug reactions showing cutaneous expression exhibit a paroxysmal course. These diseases encompass the toxic epidermal necrolysis, the drug hypersensitivity syndrome, and the acute generalized ... [more ▼]

Some drug reactions showing cutaneous expression exhibit a paroxysmal course. These diseases encompass the toxic epidermal necrolysis, the drug hypersensitivity syndrome, and the acute generalized exanthematic pustulosis. These syndromes are associated with dismal outcome. They represent medical emergencies needing hospitalization in specialized care units. [less ▲]

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See detailRevascularisation arterielle et transfert de lambeau libre pour le sauvetage des membres ischemiques avec perte de tissus mous: une alternative a l'amputation
Heymans, O.; LEMAIRE, Vincent ULg; Nelissen, Xavier ULg et al

in Revue Médicale de Liège (2002), 57(7), 453-4455-8

Severe limb ischemia is a common problem encountered in medical practice. Aggressive attempts at revascularization have extended the limits of limb salvage. However, in certain cases, extended tissue loss ... [more ▼]

Severe limb ischemia is a common problem encountered in medical practice. Aggressive attempts at revascularization have extended the limits of limb salvage. However, in certain cases, extended tissue loss compromises the healing process. It often results in amputation despite bypass graft patency. Microvascular free tissue transfer combined with arterial revascularization allows healing of these wounds and limb preservation. This combined approach is the ultimate alternative to amputation. [less ▲]

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See detailLe syndrome du marteau
Denoel, C.; Collignon, L.; Dardenne, C. B. et al

in Revue Médicale de Liège (2001), 56(12), 830-4

The hypothenar hammer syndrome is an uncommon but underestimated lesion of the cubital artery caused by repetitive trauma at the level of the hamate bone. It characteristically occurs in patients with a ... [more ▼]

The hypothenar hammer syndrome is an uncommon but underestimated lesion of the cubital artery caused by repetitive trauma at the level of the hamate bone. It characteristically occurs in patients with a history of manual work as metal workers, carpenters and motor mechanics. We present a case of a patient who developed this syndrome following intensive use of a dig. Clinical finding, diagnosis and treatment are discussed. [less ▲]

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See detailIs Fractal Geometry Useful in Medicine and Biomedical Sciences?
Heymans, O.; Fissette, Jean ULg; Vico, P. et al

in Medical Hypotheses (2000), 54(3), 360-6

Fractal geometry has become very useful in the understanding of many phenomena in various fields such as astrophysics, economy or agriculture and recently in medicine. After a brief intuitive introduction ... [more ▼]

Fractal geometry has become very useful in the understanding of many phenomena in various fields such as astrophysics, economy or agriculture and recently in medicine. After a brief intuitive introduction to the basis of fractal geometry, the clue is made about the correlation between Df and the complexity or the irregularity of a structure. However, fractal analysis must be applied with certain caution in natural objects such as bio-medical ones. The cardio-vascular system remains one of the most important fields of application of these kinds of approach. Spectral analysis of the R-R interval, morphology of the distal coronary arteries constitute two examples. Other very interesting applications are founded in bacteriology, medical imaging or ophthalmology. In our institution, we apply fractal analysis in order to quantitate angiogenesis and other vascular processes. [less ▲]

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See detailFractal Quantification of the Microvasculature Heterogeneity in Cutaneous Melanoma
Heymans, O.; Blacher, Silvia ULg; Brouers, François ULg et al

in Dermatology : International Journal for Clinical & Investigative Dermatology (1999), 198(2), 212-7

BACKGROUND: Recent advances in angiogenesis research have led to the introduction of new prognosis factors. Although the vessel count is effective in breast cancer, the prognosis of primary cutaneous ... [more ▼]

BACKGROUND: Recent advances in angiogenesis research have led to the introduction of new prognosis factors. Although the vessel count is effective in breast cancer, the prognosis of primary cutaneous melanoma (PCM) does not seems to be directly influenced by this parameter. However, the microscopic examination of PCM suggests variability in the repartition of the microvasculature. OBJECTIVE AND METHOD: To explore the possibility of extracting information about the vessel distribution by performing a textural analysis on the grey level of histological sections by means of fractal characterization by both Fourier spectrum and multifractal analysis. RESULTS: Three different patterns of vasculature were identified according to the vessel density and distribution. CONCLUSION: It is possible to differentiate and quantify clearly the differences in the microvessel profile organization using the fractal and multifractal methods. [less ▲]

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See detailLes mélanomes cutanés, un spectre de cancers émergents chez la femme en région wallonne
Pierard-Franchimont, Claudine ULg; Arrese Estrada, Jorge ULg; Cornil, F. et al

in Revue Médicale de Liège (1999), 54(5), 495-499

The Mosan Study Group of Pigmented Neoplasms was founded about 15 years ago. It has collected more than 20.000 cutaneous malignancies including melanoms and basal and squamous cell carcinomas. The ... [more ▼]

The Mosan Study Group of Pigmented Neoplasms was founded about 15 years ago. It has collected more than 20.000 cutaneous malignancies including melanoms and basal and squamous cell carcinomas. The incidence of these cancers in on the rise in Wallonia. In particular, malignant melanoms represent a spectrum of emerging cancers characterized by a proteiform biological outcome. They mostly affect young women. The major risk factor appears to be iterative and unwise ultraviolet exposures. The prevention of malenomas is basically founded on such a dogma and accordingly relies on sunscreens. However, controversies about their beneficial effects are rife and fueled by axiomas and contradictory sophisms. At the exception of surgery, the therapeutic options for the diverse types of melanomas do not yet fulfill the scope of evidence-based medicine. [less ▲]

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See detailLa reconstruction mammaire
Brewaeys, P.; Heymans, O.; Nizet, Jean-Luc ULg

in Revue Médicale de Liège (1998), 53(8), 483-9

Breast reconstruction has been the subject of many controversies. It now seems generally agreed however that the operation has no deleterious influence on the follow up of breast cancer patients and that ... [more ▼]

Breast reconstruction has been the subject of many controversies. It now seems generally agreed however that the operation has no deleterious influence on the follow up of breast cancer patients and that it has favorable psychologic effects. Breast reconstruction can be performed either by using prostheses or analogous tissues. These two different modalities have each their own advantages and limitations. Deep knowledge of the techniques and their indications allows to select the most appropriate approach in the individual patient and, thus, to improve long term results. [less ▲]

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