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Biomedical subjects

J P Chavoin

Publications and source records attributed to J P Chavoin.

At least 19 recordsLinked to original sources
PubMed2005

[Breast reconstruction after prolonged tissue expansion. About 247 cases].

SUBJECT: The purpose of this study was to analyse the complications and the aesthetic results in case of slow tissue expansion in prosthetic breast reconstruction. PATIENTS AND METHODS: We tracked 237 patients representing 247 mammary reconstructions operated between 1992 and 2004. These patients were distributed in two series, a series of 148 operated mammary reconstructions between 1992 and 2000 and a series of 99 reconstructions operated between 2001 and 2004. For every reconstruction, we analysed the progress of the expansion, the complications and the quality of the aesthetic results according to the radiotherapy and the type of implant used. RESULTS: The radiotherapy increases the risk of failure of the breast reconstruction and degrades the quality of the aesthetic results. Capsular contractures are rare and their frequency does not depend on the irradiation. Prosthesis infections and exposure are more frequent on irradiated ground. DISCUSSION: The tissue expansion in prosthetic breast reconstruction is a technique studied well in the literature, but few authors use a chronic expansion and compare the long-term results according to the radiotherapy. If our study confirms the noxious role of the radiotherapy as for the complications and for the aesthetic aspect of the results, it is not a question for us of an absolute contraindication. The weak rate of capsular contracture is attributable to the chronic character of the expansion, which allows the maturation of the capsule. The use of silicone gel implants decreases the deflations but does not improve the results. CONCLUSIONS: The radiotherapy increases the risks of failure of the tissulaire expansion and decreases the quality of the aesthetic results. The chronic character of the expansion allows to obtain a rate of capsular contracture weak, even on irradiated ground. The silicone gel implants make it possible to obtain a perennial result.

Adult↗
PubMed2005

["Morphobreast": patient's data bank management for objective selection of implant's volume in hypotrophic breasts].

Good selection of mammary implant volume is essential to satisfy patient's real desire of breast augmentation. The authors have developed a data processing called "Morphosein": it is an active press-i-book, allowing recording and exploitation of basic morphologic datas before and after operating procedure. They use Filemaker Pro as basic software and database, which is fed with personnal patients. This tool allows a comparative research on patients having a similar morphologic and on results obtained with different types of implants. These datas, store since 4 years, give to the authors' objective informations to help the patient's choice.

Adult↗
PubMed2005

[Silicone or saline - filled implants for breast augmentation?].

The use is to oppose silicone and saline implants. Both are used in regular practice. What are the arguments to choose in between the two types? We separated three different criteria groups: prosthesis characteristics, surgical procedures and complications. For each criterion we made a review of literature looking for arguments in favour or against silicone or saline implants. The number of criteria to choose the correct type of prosthesis is very important. We conclude that surgeon experience; desires of the patient and evolution of prosthesis are the most important criteria.

Breast↗
PubMed2005

[Evolutive French regulation and materiovigilance specific to the breast implants].

Too much a long time the manufacture of the breast implants does not have the object of a specific regulation. This lack led partly to the prohibition of the implants filled with silicone in 1995. It took 10 years for the European Union to create and to set up a standard EC specific to the breast prosthesis. It's the history of these steps as well on the level of Europe as has the French scale as we report you. Initially classified as implantable devices of IIb level, the breast implants were reclassified on level III in 1993, the highest level of requirement of CE marking. In accordance with the recommendations of the group of experts named by the Afssaps, the technical standard IN ISO 14630:1997, fixing the mechanical properties of the prosthesis, is in the course of revaluation since 2004. According to Council Directive 93/42/EEC of the June 14th 1993, the French government instituted a materiovigilance specific to the breast implants. All these evolutions allow, now a serene use of the breast implants.

Breast Implants↗
PubMed2005

[Poland'syndrome and hand's malformations: about a clinic series of 37 patients].

INTRODUCTION: Poland's syndrome is a rare malformation which associates thoracic anomalies and anomalies of homolateral upper end. We wish to know the frequency of hand's malformations in this syndrome in our clinical experience. MATERIAL AND METHODS: We have revised 37 patients who were seen initially for a thoracomammary anomaly. This clinical series from plastic surgery service of Toulouse has been revised to know the importance of hand's malformations. RESULTS: Hand's malformations in Poland's syndrome are rare in your study, they touch only 12% patients. We find only 4 malformations in 33 patients, four were lost. They were only females, we find three brachymesophalangies and a major form. DISCUSSION: Hand's malformations in Poland's syndrome are less frequent than classically. There is no parallelism between gravity of thoracic malformation and that one of upper end. In this series, we find only one case with syndactyly; originally, Poland's syndrome was named << Poland's syndactyly >>. Finally, we think that we can talk about Poland's syndrome without anomaly of homolateral upper end, the major element is musculary agenesia of sternocostal pectoralis major. The search of homolateral upper end has to be systematic in front of suspicious of Poland's syndrome.

Adolescent↗
PubMed2004

[Surgical site infection surveillance in breast implants surgery].

The results of long-term follow-up of surgical site infection (SSI) after aesthetical breast surgery are reported. 205 consecutive patients operated from 1/2000 to 3/2002 were followed for at least one year. Postoperative incidents were observed in 26 (12.7%) patients, including SSI in six (2.9%) patients. After surgery, the mean time to SSI was 113 days, with only two cases in the first postoperative month. In all SSI cases, no antibiotic prophylaxis had been given. The causative role of infectious agents in breast implant capsule occurrence is under investigation.

Adolescent↗
PubMed2004

[Adipose tissue, plastic and reconstructive surgery: come back to sources].

The adipose tissue represents a large amount of adult tissue. For long time, it was considered as a filling tissue and used in plastic and reconstructive surgery. It was always studied for its main involvement in energy metabolism and energy disorders as diabetes and obesity. More recently, its endocrine functions emerged and thus play a key role in many physiological functions as inflammation and immunity. The presence of preadipocytes throughout life was demonstrated using primary culture technology from cells derived from adipose tissue. In recent papers, cells derived from adipose tissue were used for haematopoiesis, vascularisation or skeletal muscle recovery. Differentiation into functional cardiomyocytes, osteoblasts and neural cells was obtained in vitro. These spectacular data, the fact that adipose tissue is easy to sample and the possibility to create cell or tissue banks open numerous and promising perspectives in regenerative medicine.

Adipocytes↗
PubMed2004

[Complications of laser facial resurfacing].

Laser resurfacing is a burn of the superficial skin layers: it's a controlled burn in its depth, that can destroy epidermis and the dermis superficial part, but not deeper for avoiding healing complications. All complications and the normal postoperative follow-up can be explained by the fact that laser resurfacing is a burn of the dermis and epidermis, with the destruction, partial or total, of their components. It's essential to understand the normal postoperative process and complications to avoid them and to treat them in the beginning. Infection, persistent erythema, pigmentation troubles like hyperpigmentation or depigmentation and demarcation surrounding the resurfacing area, healing troubles like hypertrophic scarring, keloids, excess of skin retraction are the main complications. Careful preoperative explanation of laser-resurfacing follow-up will help the patient adjust more easily to postoperative care.

Cicatrix↗
PubMed2003

[Poland's syndrome: clinic series and thoraco-mammary reconstruction. Report of 27 cases].

The authors evaluate the quality of thoraco-mammary reconstructions in Poland's syndrome. There was 34 patients in our serie, and 27 were operating between 1982 and 2001. There was 19 women and 8 men; the mean age was 19 years (9-40 years). Because of the clinical variability, the authors propose a classification of the malformation's importance in 3 degrees. In our serie, there is 35% of degree I, 53% of degree II and 12% of degree III. Each patient had an average of 2 general anaesthesias (1-6). For the first operation time, men had translation of the homolateral latissimus dorsi muscle flap in 25%, and a thoracic prosthese in 75%. Women had mammary prosthese in 50%, expansion prosthese in 20%, mammary prosthese and thoracic prosthese in 20%, muscle flap in 10%. The same person analysed the results in terms: good, middle or bad. The results are good in 67%, middle in 22%, poor in 11%. In degree 1, the results are always good; in degree II, they are good in 59%, middle in 29% and poor in 12%; in degree III, the results are good, middle and poor in 33%.

Adolescent↗
PubMed2003

[Funnel chest: filling technique with deep custom made implant].

Through 97 patients over 9 years, the authors present a surgical treatment for "funnel chest" using custom-made silicone elastomer prothesis which are deeply placed, behind muscle and aponevroses. They justify the choice of this simple and non invasive technique, by the fact that this deformation is only morphological in most cases or even only inaesthetic with exceptional cardiac or pulmonary consequences. Patient's motivation being mainly due to psychological disconfort, the non invasive aspect of the technique leads them to choose surgery, particularly as results are good and complications seldom.

Adolescent↗
PubMed2003

[Aesthetic surgery and ethic].

Body image, in our consuming societies, became more and more important, and its new modelizations magnified by medias, strike the plastic surgeon with ethic questions. The author analyze the fundamental aspects of ethic in aesthetic surgery and their practical consequences for specialists who wish to practice surgery with the aim to improve physical and psychological comfort of their patients with maximum security.

Body Image↗
PubMed2002

[Deflation of breast implants, pre-filled with saline or hydrogel. Results and analysis of 650 treated patients].

SUBJECT: The main mechanical side effect of saline or hydrogel filled implants is deflation. The aim of this study was to analyse the prosthetic deflation rate in the last 7 years in the plastic surgery unit of Toulouse. PATIENTS AND METHODS: We tracked 650 patients operated on between july 1993 and july 2000 (representing 1117 primary implants) which we separated in two groups: the first group contained patients in need of breast reconstruction; the second group contained all the patients with implants placed for aesthetic or breast asymMetry reasons. For each of the two groups we determined the number and the type of implants, as well as the rate and the mean delay after which deflation occurred. RESULTS: During this period, we've determined that: rate of deflation of group 1 (reconstruction) is highest than group 2 (aesthetic), despite sort of implant; rates of deflation of pre-filled hydrogel implants are highest than rates of deflation of pre-filled saline implants. DISCUSSION: Only a few series concerning implants deflation have been described in the literature. We can find a large difference in results which vary from 2 to 76%. We were surprised by the result of our series with a rate of deflation up to 15% with a medium follow-up 5 years in both groups and a mean delay before the fourth year. Deflation's factors are numerous: type of sterilisation, rippling, texture, valve's incompetence, prosthetic patch, guarantee control and iatrogenic causes. Because the silicone gel implants (the one uncomplicated by deflation) were taken off the french market, the saline implants tried to supplant them but without satisfactory results. CONCLUSIONS: With the unacceptable rate deflation of implants in our study, the return in the french market of silicone gel implants seems us an acceptable alternative.

Adolescent↗
PubMed2002

[Metabolic problems and nutrition in burns].

Metabolic changes with burns patients are enormous. The loss of skin substance and the necessity of its reconstruction are at the origin of this exceptional situation. In this context of major aggression with important metabolic alteration the nutritional needs are considerable. To assure a tissue reconstruction, nutrition is as important as the fight against infection. The authors make the point on the quantity needs and the quality needs. They raise up the perspectives concerning immunonutriments and note the importance of enteral administration. As a conclusion, they insist on the fundamental role of the clinical aspect, in the survey of nutritional state.

Burns↗
PubMed2002

[The tuberous breast: a review].

The tuberous breast is one of the most challenging problem in breast surgery. Pediatricians, gynaecologists and plastic surgeons are particularly concerned with the treatment of these young patients. A good assessment of the pathology and a precise knowledge of the surgical procedures are keypoints for a successful treatment. A case report will precede a literature overview of this very complex problem.

Adolescent↗
PubMed2000

[Treatment of facial lesions in Parry-Romberg and Barraquer-Simons syndromes: report of 12 clinical cases].

The authors report their personal experience in surgical treatment of facial atrophies. The series present two types of facial atrophy: Parry-Romberg syndrome and Barraquer-Simons syndrome. After reviewing the etiology, pathogenesis and clinical features of these two entities, the authors describe their series of 12 patients: six presenting Parry-Romberg unilateral facial atrophy, six presenting from Barraquer-Simons bilateral facial atrophy. After a review of the literature, they draw conclusions about surgical repair techniques used (free or pedicled flaps, alloplastic grafts, lipofilling) and compare them with those reported in the literature.

Adolescent↗
PubMed1999

Surgical treatment of sacrococcygeal pilonidal sinus disease by excision and skin flaps: the Toulouse experience.

OBJECTIVE: To compare various techniques for the treatment of pilonidal sinus. DESIGN: Retrospective study SETTING: University Hospital of Toulouse, France. SUBJECTS: 246 consecutive patients who presented between 1979 and 1996. The male:female ratio was 2:1, and the mean age 26 years (range 18-69). INTERVENTIONS: 218 one or two stage excision and rotation skin flaps, and 28 simple incisions. RESULTS: 16 sinuses recurred, and no flaps necrosed. CONCLUSION: Excision and rotation skin flaps offers an effective and elegant alternative to the more classic operations for pilonidal sinus as it causes less postoperative pain and shortens convalescence.

Adolescent↗