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Biomedical subjects

S Carton

Publications and source records attributed to S Carton.

At least 19 recordsLinked to original sources
PubMed2007

Characterising error-awareness of attentional lapses and inhibitory control failures in patients with traumatic brain injury.

Awareness deficits are a significant problem following traumatic brain injury (TBI). This study examined error processing as candidate marker of awareness and compared the performance of 18 TBI participants and 18 controls using an online error-monitoring task while participants performed simple go/no-go tasks. Error-monitoring performance was compared where the no-go target was part of (a) a predictive sequence, (b) predictive sequence plus a dual-task element and (c) a random sequence. Results showed that the TBI participants, in contrast to control participants, were significantly impaired at monitoring their errors during both predictive sequence tasks but were not impaired on the random sequence task. These findings suggest that following TBI, when an error is more impulsive it may be more easily monitored, whereas when an error is characterised by attentional drift, subsequent error-processing mechanisms may fail to engage. Higher levels of online error-awareness were also associated with lower levels of anxiety, fewer symptoms of frontal dysfunction and greater competence in everyday functioning.

Adult↗
PubMed2006

[Modified Texier mediodorsal transposition island skin flap of the nose. Report of four cases of ala nasi reconstruction].

First described by Texier in 1994, the mediodorsal transposition flap of the nose is an island flap. The paramedian dorsal arteries (anastomosed to the interdomal plexus) ensured the axial vascularisation in SMAS plane. The authors will discuss their personal approach to the surgical procedure for the improvement of final result, with four clinical cases. This flap can be used for aesthetic unit reconstruction of cutaneous or mucosal different alar defect (partial or complete, full-thickness or not). This reliable flap represents an alternative technique of composed grafts, of different nasolabial flaps, and of forehead flap.

Adult↗
PubMed2005

[3D evaluation and mammary augmentation surgery].

The medical application of the interferometry is valid now. The breast surgery works on the shape and the volume of the tissue. The Inspeck technology is now available and works well in our medical practice. The measurement tools for the lengths, euclidian or projected on surface are working well with the same precision of a manual measurement. The estimation of the volume needs to follow exactly the same procedure to get some good results. The virtual breast modification doesn't work anymore with a scientific precision and does not allowed yet an office use. A development of the software is necessary to use all these data enclosed in the 3D models.

Adult↗
PubMed2005

[3 D evaluation and breast plastic surgery: preliminary study].

Due to the development of the invasive technique of digital exam, the three-dimensional results are more and more precise, spectacular and helpful. The 3D surfacic model is for a medical approach and non invasive. Early in 2003, we have started a patient evaluation before and after surgery. The most common surgical techniques from the breast reconstruction to the breast augmentation and the lipomodeling have been analyzed. This preliminary study has shown objectively some surgical rules and volumetric results. Those results are the elements of the future development of the 3D surfacic model in plastic surgery.

Breast↗
PubMed2002

Early emotional disturbances during nicotine patch therapy in subjects with and without a history of depression.

BACKGROUND: The goal of this study was to compare development of emotional symptomatology during smoking cessation with transdermal nicotine patches in subjects with and without a history of depression. METHODS: Twenty-five subjects, 14 with a history of depression and 11 without such a history, were evaluated before beginning of cessation, on day 8, day 30, day 90 and day 120. RESULTS AND DISCUSSION: On day 120, ten subjects have maintained abstinence: 71.4% of subjects with and 45.5% of subjects without a history of depression relapsed. Both groups presented variable emotional symptomatology and there was no significant differences between subjects with and without a past depression. On the other hand, none of the symptoms which emerged during cessation predicted the issue of cessation. However, some symptoms appearing before beginning of cessation were related to subsequent relapse: lack of pleasure seeking and tiredness. Subsequent relapsers also tended to be more tense on baseline. These early symptoms can not be considered as withdrawal symptoms, they may reflect less confidence in success. It is also suggested that development of anhedonia represents an adaptative strategy to prepare for the withdrawal suffering.

Administration, Cutaneous↗
PubMed2001

[Psychological aspects of emotional regulation in smoking dependency].

We reviewed the literature on the relationships between smoking and affect regulation. There is strong evidence that vulnerability to smoking dependence is a function of a high initial sensitivity to nicotine, which produces reinforcing consequences that lead to chronic use. These strong reinforcers of tobacco dependence include regulation of mood and modulation of arousal. We focused on studies concerned with the subjective component of arousal and emotional experience. We discuss first the models and classifications used to differentiate types of smoking as related to the management of emotions and studies evaluating the stimulant and subjective effects of smoking behavior, questioning the paradoxical tranquilizing and anxiety-reducing effects of nicotine. We also looked into the mood regulation effects that may explain the strong relationships observed between depression and smoking and finally focus on some of the personality risk factors that may make individuals more susceptible to these rewarding properties of smoking.

Affect↗
PubMed2000

Differential cognitive effects of colloid cysts in the third ventricle that spare or compromise the fornix.

A series of twelve cases, all of whom had received surgery for the removal of a colloid cyst in the third ventricle, was examined on a series of memory tests. The only consistent predictor of poor memory performance that could be detected from MRIs was the presence of bilateral interruption of the fornix, which occurred in three of the subjects. Although these three cases were poor on tests of learning and recall, there was evidence that recognition was less impaired. The subjects were also tested on a set of recognition and concurrent discriminations that closely matched tests given to non-human primates. Clear parallels were found between the apparent effects of fornix damage in these clinical cases and those observed following more selective surgery in non-human primates. These findings not only indicate that fornix damage is sufficient to induce anterograde amnesia but also support the validity of recent animal tests that are thought to capture aspects of episodic memory.

Adult↗
PubMed2000

[Cystic mesothelioma of the peritoneum in a male].

We report a case of cystic mesothelioma of the peritoneum in a young male with local recurrences and whose diagnosis was confirmed by standard histological studies and immunohistochemistry. This rare tumor appears generally in young females through abdominal pain and mass. Local recurrences without distant metastases are a feature of this pathology. The adequate treatment requires complete resection.

Adult↗
PubMed1999

[Isolated vasculitis of the spermatic cord].

The authors report a case of isolated spermatic cord vasculitis associated with testicular infarct in a 75-year-old man. No clinical symptoms or serological markers of a systemic disease were found. This is a rare disease which cannot be diagnosed without histological examination and which requires follow-up because of a risk of progression to autoimmune disease.

Aged↗
PubMed1999

Whipple's disease: benefit of the fine-needle aspiration cytology from lymph nodes.

We report a case of Whipple's disease with predominant neurological symptoms and without any clinical digestive sign. The diagnosis was suspected by fine-needle aspiration from an axillary lymph node and confirmed by the duodenal biopsy and ultrastructural results. Whipple's disease is a rare, chronic, systemic infectious disease. Electron microscopy and PCR on paraffin blocks are very helpful when histologic findings are not discriminant. On cytologic examination, the major differential diagnosis is mycobacterial adenitis. Here we highlight the possibility of diagnosis Whipple's disease on mere cytological material.

Biopsy, Needle↗
PubMed1995

Sensation-seeking and emotional disturbances in depression: relationships and evolution.

The French abbreviated form of the sensation-seeking scale was given to 183 hospitalized depressed subjects meeting the DSM-III-R criteria for major depression. Depressed subjects, men and women, scored significantly lower than controls from the general population, paired as to age and sex, on all of the subscales. There was no relationship to the intensity of depression and anxiety. Relationships between emotional disturbances and sensation-seeking were differentiated according to the specificity of each subscale and to age and sex. There was no significant difference between baseline and after-treatment sensation-seeking scores and subjects at discharge still scored significantly lower than controls. Hypotheses on evolution at a later date after the hospitalization are made. The finding of positive relationships for some subjects between sensation-seeking and anhedonia is interpreted in regard to a compensatory process.

Adult↗
PubMed1994

Nicotine dependence and motives for smoking in depression.

Smoking variables were assessed in female (n = 48) and male (n = 28) French hospitalized depressed smokers. Nicotine dependence, motives for smoking, and emotional situations in which depressed smokers were likely to smoke were compared with those of female (n = 36) and male (n = 60) nondepressed smokers from the general population. Depressed smokers scored higher than controls on nicotine dependence, and on stimulant and sedative smoking; they also reported that they were more likely to smoke in negative emotional situations. Sedative smoking decreased significantly between admission and discharge. Sedative smoking is a strong reason for smoking among depressed smokers regardless of degree of dependence, whereas stimulant smoking is positively correlated with degree of dependence. Nicotine dependence is also significantly correlated with anhedonia, and its relationship to depression is discussed in regard to nicotine action on hedonic systems.

Adult↗
PubMed1991

Parallel Visual Information Processing Test. An experimental assessment of alexithymia.

A novel clinical and experimental situation has been created, based on the psychopathological concepts of 'pensée opératoire' and alexithymia and the contribution of recent trends in cognitive science as to the dual skills of the brain hemispheres: the Parallel Visual Information Processing Test. This test was validated in more than 100 subjects, and revealed that holistic visual attention is reduced during logical task performance; this impairment appeared to be typical of patients with poor fantasizing ability and operative behavior. Such findings are consistent with some authors' theory according to which there is a functional commissurotomy in alexithymic and psychosomatic patients.

Adolescent↗
PubMed1988

Splenosis: ultrasound and CT findings in a case complicated by an intraperitoneal implant traumatic hematoma.

A case of intraperitoneal splenosis, found incidentally at ultrasound examination in a 35-year-old man, is reported. The diagnosis, suspected on the basis of computed tomographic (CT) and radionuclide studies, was established by surgery. Three years later, after direct trauma, ultrasound and CT studies revealed a surgically proven splenosis implant hematoma. The contribution of radiologic examinations in the diagnosis of splenosis is emphasized.

Adult↗
PubMedDate not supplied

Sensation seeking, nicotine dependence, and smoking motivation in female and male smokers.

Sensation-seeking scores in female (n = 36) and male (n = 60) French smokers were compared with those for a control group of female (n = 23) and male (n = 45) nonsmokers. The findings clearly show that smokers of both sexes are higher in sensation seeking than their nonsmoking counterparts: they score higher on the Disinhibition, Experience Seeking, and Boredom Susceptibility components of sensation seeking. Smoking women were particularly high on Experience Seeking. The relationships among the sensation-seeking components, nicotine dependence, and motives for smoking were assessed in the smokers. Disinhibition and Experience Seeking moderately correlated with nicotine dependence in females, as assessed by the Fagerström questionnaire and the Addictive factor of the Russell Classification of Smoking by Motives. Women high in Experience Seeking may be at particular risk for smoking and possibly for dependence. Further research is needed to state that the high sensation seeker is a person who might be expected to be particularly sensitive to the stimulating reward of smoking, and thus particularly vulnerable to becoming a dependent smoker.

Adult↗