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Dive into the research topics where Maxime Chahim is active.

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Featured researches published by Maxime Chahim.


Journal of Vascular Surgery | 2010

Anatomical variations of the femoral vein

J.-F. Uhl; Claude Gillot; Maxime Chahim

BACKGROUND The venous anatomy is highly variable. This is due to possible venous malformations (minor truncular forms) occurring during the late development of the embryo that produce several anatomical variations in the number and caliber of the main venous femoral trunks at the thigh level. Our aim was to study the prevalence of the different anatomical variations of the femoral vein at the thigh level. METHODS This study used 336 limbs of 118 fresh, nonembalmed cadavers. The technique included washing of the whole venous system, latex injection, anatomical dissection, and then painting of the veins. RESULTS The modal anatomy of the femoral vein was found in 308 of 336 limbs (88%). Truncular malformations were found in 28 of 336 limbs (12%); unitruncular configurations in 3% (axo femoral trunk [1%] and deep femoral trunk [2%]). Bitruncular configurations were found in 9% (bifidity of the femoral vein [2%], femoral vein with axio-femoral trunk [5%], and femoral vein with deep femoral trunk [2%]). CONCLUSION Truncular venous malformations of the femoral vein are not rare (12%). Their knowledge is important for the investigation of the venous network, particularly the venous mapping of patients with cardiovascular disease. It is also important to recognize a bitruncular configuration to avoid potential errors for the diagnosis of deep venous thrombosis of the femoral vein, in the case of an occluded duplicated trunk.


Phlebology | 2012

Static foot disorders: a major risk factor for chronic venous disease?

Jean-François Uhl; Maxime Chahim; Allaert Fa

Objective To study the relationship between the static foot disorders (SFDs) and chronic venous disease (CVD). Material and methods A retrospective study of 824 feet in unselected 412 patients seen by one phlebologist using a standardized record form. A complete clinical, aetiological, anatomical and pathological elements (CEAP) classification was determined. Alleged venous symptoms were recorded using a 10-point visual analogue scale and scored using a customized questionnaire. A standardized measurement of the Djian-Annonier angle was used to quantify and identify the presence of any static disorder of the foot. Results There were 156 men (37.8%) and 256 women (62.2%) who were included in this study. A majority of patients (59.3%) had a CEAP classification of C3 or greater. Static disorders of the feet were found to be very common in the study population: 137 feet were hollow feet (16.6%) and 120 flat feet (14.5%). Thus, 31% of all of the feet had some form of SFD. A significant correlation was found between the incidence of SFD and body mass index (P < 0.01), the presence of symptoms (P<0.001) and prolonged standing during the day (>5 hours, P < 0.05). The severity of the CVD, represented by the CEAP clinical classes, was also found to be very significantly related to the SFD (P < 0.001). This correlation was found to be independent of age. Conclusion Static disorders of the foot can be considered as an important risk factor that negatively affects CVD. In daily practice, it is often underestimated. This emphasizes the crucial importance of the detection of SFD during the clinical exam of all CVD patients. Correction of static disorders of the feet will improve symptoms due to the SFD, as well as those related to venous stasis. These results can easily be explained by improvement of foot pump efficacy during walking.


Phlebology | 2018

Prospective randomized controlled study of patient compliance in using a compression stocking: Importance of recommendations of the practitioner as a factor for better compliance

Jean-François Uhl; Jean-Patrick Benigni; Maxime Chahim; Delinotte Fréderic

Background Patient compliance is the cornerstone of compression therapy success. However, there has been up to now no tool to assess it other than self-reporting by the patient, which is not reliable. Material and methods Forty active females classified C2S were enrolled to wear compression stockings (CS) providing a pressure of 15–20 mmHg at the ankle. A thermal probe was inserted in the stocking (Thermotrack®), recording the skin temperature every 20 min for four weeks. The patients were randomized in two groups of 20: – Group 1: Receiving minimal recommendations by their physician at the office. – Group 2: Receiving in-depth recommendations by the physician reinforced with SMS message which were repeated once a week for four weeks. The basic CEAP classification and the quality of life (QoL) were recorded before and after four weeks. Results The two groups are similar for age, symptoms and type of CS. The analysis of the thermal curves showed a significant increase (+33%) in the average wearing time daily in the group 2: 8 h vs. 5.6 h (group1) p < 0.01. The average number of days worn per week is also increased: 3.4 (group 1) vs. 4.8 (group 2), thus improving patient compliance from 48.5% to 70% as a direct result of the physician recommendations (p < 0.001). Conclusion This is the first study assessing the real compliance in CVD patients of using compression. It shows that better and repeated recommendations by the practitioner result in an increase in time the compression is used by 33%. The study also suggests that the number of days the compression stocking is worn is a good criterion of patient compliance.


Phlebology | 2015

Compression versus inner sole for venous patients with foot static disorders: a prospective trial comparing symptoms and quality of life

Jean-François Uhl; Maxime Chahim; François-André Allaert

Objective To prospectively compare the improvement in quality of life and symptoms achieved when using two treatments—medical compression stockings and inner sole—in subjects with symptomatic chronic venous disease in the presence of foot static disorders. Materials and methods This prospective study included 24 patients with a symptomatic chronic venous disease associated with foot static disorders. The basic CEAP was used to classify the patients. The venous symptoms were recorded using a 10-point visual analog scale and scored using a customized questionnaire. Patient-reported quality of life data were acquired using a CIVIC questionnaire. A standardized measurement of the Djian-Annonier angle was used to quantify the foot static disorders. We compared the use of the following two treatments: medical compression stockings (18 mm of Hg) and inner sole. For this comparison, we used a crossover technique over 4 successive weeks. Results One male and 23 female patients were included in this study. We found significant improvement in quality of life scores when only medical compression stockings were used (p < 0.005), only inner sole were used (p < 0.01) and also when both treatments were used together (p < 0.001), compared with no treatment. This was mainly observed for the somatic component of CIVIC. The symptoms of pain, heaviness, swollen feeling, and cramps were significantly improved by the two treatments, whether given separately (p < 0.001) or together (p < 0.0001). No additive effect of the treatments was observed. Conclusion This study suggests that a number of leg symptoms occurring in varicose veins patients are not likely to have a venous origin. They are frequently related to a foot static disorder, which is responsible for postural changes. This study also strongly demonstrates the need for correction of the foot static disorder if such a disorder is present in any patient with chronic venous disease. The use of the inner sole will improve the symptoms and also the quality of life with an efficiency that is almost equal to that provided by the medical compression stockings and the combined use of both treatments is recommended.


Morphologie | 2015

Données nouvelles sur l’anatomie des veines perforantes du pied

Jean-François Uhl; Maxime Chahim; C. Gillot


International Angiology | 2018

Treatment protocol on stasis edema in poorly mobile nursing home patients

Jean-Patrick Benigni; Jean-François Uhl; Florence Balet; Maxime Chahim


Journal of Theoretical and Applied Vascular Research | 2016

3D modeling of the vascular system

Jean François Uhl; Maxime Chahim; François Cros; Amina Ouchene


Journal Des Maladies Vasculaires | 2016

Les plexus veineux vertébraux internes (PVVI) : importante voie de dérivation des obstructions ilio-caves

J.-F. Uhl; Maxime Chahim; O. Plaisant; Claude Gillot


Morphologie | 2014

Les nouveaux outils numériques pour l’enseignement et la recherche en anatomie

J.-F. Uhl; Boudjemaa Ghebriout; Maxime Chahim; Vincent Delmas


Morphologie | 2014

Les pompes veino-musculaires du membre inférieur

J.-F. Uhl; C. Gillot; Maxime Chahim; Vincent Delmas

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J.-F. Uhl

Paris Descartes University

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Claude Gillot

Paris Descartes University

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Hugo Partsch

Sapienza University of Rome

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