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S Ben Ammar

Publications and source records attributed to S Ben Ammar.

At least 19 recordsLinked to original sources

Trigeminal trophic syndrome: a report of two cases with review of literature.

Trigeminal trophic syndrome, a rare cause of facial ulceration, is the consequence of damage to the trigeminal nerve or its central sensory connections. We report two cases of trigeminal trophic syndrome, complications of cerebral vascular accidents. A 65-year-old woman complained of numerous and progressive ulcers of the right side of her face of 2 month's duration. A 67-year-old woman presented with an ulcer of the ala nasi of 10 week's duration. This syndrome most commonly occurs in women with an average age of 57 years. About 100 cases are reported in the literature. The diagnosis is made on clinical grounds, and is suggested when loss of sensation occurs in association with unilateral facial ulceration, especially involving the ala nasi. Once the ulcers appear, they are extremely persistent.

Aged↗

[Skin aging].

The skin aging is the result of the association of seven factors; chronological factor, genetic factors, exposure to ultraviolet rays (photodamage), behaviour factors, endocrinous, catabolics and mechanics factors. The treatment combine sun protection measures, topical treatment, dermatological and surgical techniques (peelings, resurfacing laser, injections of collagen, botulic toxin...). The authors intend to study clinical and anatomy-physiology aspect of skin aging, as well as different treatments.

Age Factors↗

[Epidemiologic data in renal lithiasis in adults].

The morpho-costitutional analysis of 574 urinary lithiasis emitted by tunisean adults permitted to define an épidemiology's profile. This resemble to the épidemiology's profile of under-developed conry: Amore raised frequency of the renal lithiasis at the man than at the woman with a sec ratio of 2.4. An average age of +14 years with a peak to 4th decade in 2 sexes. The upper localitation of the calculi is founded in 94% cases. The fréquency of the relapses, the mode of expulsion and the size of calculi are différent of those published in the litérature. Probably because the time of study which last 4 years is too short, so it don't enable us to find a result like the literature. The surgery is the mode of most fréquent élimination (51%). This s dû to the présence great size calculi in our popûlation and to the récent introduction of the lithotritie in our country.

Adolescent↗

Urolithiasis in Tunisian children: a study of 120 cases based on stone composition.

The composition of urinary stones in children depends on socioeconomic conditions and hygiene, geographical area, and dietary habits. We analyzed urinary stones from 120 consecutive Tunisian children (81 males, 39 females) aged 5 months to 15 years. The stone was located in the upper urinary tract in 91 cases (76%). Stone analysis included both a morphological examination and an infrared analysis of the nucleus and the inner and peripheral layers. The main components of bladder calculi were whewellite (69%) and struvite (22%), whereas the main component of upper urinary tract calculi was whewellite (67%). The nucleus of bladder stones was composed of ammonium urate (45%), struvite (28%), cystine (10%), and carbapatite (7%). The nucleus of kidney and ureteral calculi was mainly composed of ammonium urate (38%), whewellite (24%), carbapatite (13%), or struvite (11%). Based on stone composition, urinary tract infection was involved in the nucleation or growth of a third of calculi. Endemic urolithiasis involving simultaneous nutritional, metabolic, and infectious factors, and defined by its nucleus composed of ammonium urate without struvite, represented 40% of cases. Exclusive metabolic factors - including genetic diseases such as primary hyperoxaluria, cystinuria, and hypercalciuria - were responsible for less than 25% of cases.

Adolescent↗

[Urinary calculi in children: contribution of anamnesis, biological exploration and physical analysis of calculi to the etiological diagnosis].

BACKGROUND: It is always of importance to define the cause of urinary calculi disease in children to prevent recurrence and possible impairing of renal function. Nevertheless, etiology is not always easy to prove and must be deduced from both clinical and biological arguments. PATIENTS AND METHODS: The aim of this prospective study including 39 Tunisian children with urinary stones was to identify etiology and stone risk factors and detail the part of clinical and biological data and results of physical analysis of stones in determining the cause of the stone. RESULTS: In 31 cases among 39, clinical and biological data were not sufficient to identify clearly the stone etiology. When considering the structure and stone composition, the cause of the stone could be determined in 97.4% of the cases. An inherited disease was found responsible for the stone in 11 children, urinary tract infection in 13 cases, idiopathic hypercalciuria in nine cases and a nutritional deficiency disease in seven cases. In one case, polycystic kidney disease with metabolic risk factors could explain the stone process. No precise etiology was found in one case. Among infection stones, struvite stones could be related to urea-splitting bacteria while other calculi, containing whitlockite and protein matrix could be related to other micro-organisms. Earlier severe chronic diarrhoea episodes were noted in six among seven children presenting stones with a nucleus mainly composed of ammonium urate. CONCLUSION: Clinical data, biological data from both urine and blood of the patients and also the structure and composition of the stones are needed to identify the cause of urinary calculi. Such a procedure could provide the stone etiology in most cases.

Adolescent↗

[Etiologic factors of urinary lithiasis in Tunisian children].

Fifty-five Tunisian children with urinary stones, between the ages of 8 months and 15 years, underwent morphological and infrared spectrophotometric analysis of their stones. This study provides an approach to the aetiological profile of urinary stones in Tunisian children. The nucleus of the stones was composed of acidic ammonium urate in 48% of cases with a morphology suggestive of phosphorus deficiency associated with a history of diarrhoea. In 24% of cases, the nucleus contained struvite indicating the presence of urinary tract infection by urease-positive bacteria. The main growth factors of urinary stones were hyperoxaluria and urinary tract infection. In 5 cases, the stones were due to a hereditary lithogenic metabolic disease : cystinuria in 1 case and primary hyperoxaluria in 4 cases.

Adolescent↗

[Screening for carential anemia in pregnant women: prospective study. Report of 200 cases].

To report the frequency and intensity of anemia in a population of pregnant tunisian women. Our retrospective study concern 200 patients collected from january to july 1999 in a population of pregnancies. Mean age was 30.1 years and 68.5% of patients consult in the third trimester with a 33.5% rate of multiparity. The frequency of anemia is 37.5%. Anemia was ferriprive in 97.3% and hypochromic in 24% of cases. Mean ferritinemia is 4.19 ng/ml after 24 weeks of amenorrhea with a marqued decrease in case of multiparity and pregnancy evolution. Mean transferrinemia is significantly low in anemic (3.98 g/dl) versus non anemic (3.60 g/dl) patients (< 0.05). The comparison of anemia with parity, the delay between two pregnancies and term of pregnancy showed a higher risk with multiparity, short delay between two pregnancies and advanced term. The frequency of anemia in tunisian pregnant women is relatively high, prevention is based on iron supplementation and hygienodietetic advices.

Adult↗