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Biomedical subjects

F Ammar

Publications and source records attributed to F Ammar.

16 recordsLinked to original sources
PubMed2005

[Air or oxygen for neonatal resuscitation in the delivery room?].

Most of the contemporary guidelines on newborn resuscitation are based on experience but lack scientific evidence. The use of 100% oxygen is one of the more evident. Today, these practices are questioned, particularly for the resuscitation of moderately depressed full term or near term newborns. Results of recent meta-analysis of trials that compared ventilation with air versus pure oxygen at birth suggests current practices should be revisited. On the basis of these data, air can be the initial gas to use for these babies. Large scale trials, including preterm and cause and/or severity of initial asphyxia, must now be undertaken before the publication of new guidelines for these populations. Particularly severely asphyxiated infants might require supplemental oxygen with titration of oxygen delivery and continuous monitoring of oxygen saturation.

Air↗
PubMed2005

[Bilateral carotid aneurysm revealing Takayasu disease].

Extracranial carotid aneurysms caused by Takayasu's arteritis is extremely rare. Their evolutionary risk is dominated by rupture and cerebral ischemia. We report a case of a 23 years old woman presenting bilateral common carotid aneurysm secondary to Takayasu's arteritis. Surgical treatment with the patient under steroid coverage was performed to prevent the risque of rupture. The aneurysm was resected, reconstruction was performed with prothetic aortocarotid bypass. She was discharged without major complications. The graft have remanied patent during the four years follow-up periods. A biologic inflammatory syndrome and a parietal thickening of the aneurysm in a young woman must provoke diagnosis. The surgery must be appropriate every time that the diagnosis is carried considering the evolutionary risk of these aneurysms.

Adrenal Cortex Hormones↗
PubMed2004

[Two cases of malignant tumors of the inferior vena cava].

The malignant tumors of the inferior vena cava are rare. Their prognosis is bad. We report two cases of a 17-year-old and 46-year-old woman presenting the one an intimal sarcoma of the inferior vena cava and the other a metastatic of adenocarcinoma whose primary tumor was not identified. The aortic wall was invaded in both patients. The ureter repulsed in first case, was invaded in second case. The treatment consisted on resection of the tumor including the aortic wall with vein closure in both patients, with right nephrectomy in second patient. In the two cases, a prosthetic reconstruction of the arterial integrity was attempted with aortobiiliac bypass. The two patients died after relapse tumorous to the 6th month in first patient and by multisystem organ failure 5th day post-operative in second. Through these two personal cases, we try to point out the difficult problem of diagnosis that put these tumors and their bad prognosis despite an improvement of treatment.

Adenocarcinoma↗
PubMed2003

[Abdominal aortic aneurysm and Behçet's disease: four cases].

Behçet's disease is an uncommon systemic process generally developing during the third or fourth decade of life. Recurrent inflammatory lesions are characteristic. Cardiovascular involvement, which may be arterial or venous, is rare but with particularly severe prognosis. Four cases of abdominal aortic aneurysm are reported. One patient underwent emergency surgery for acute rupture. All patients were male, age range 29-45 years, mean age 36.5 years. Three patients were followed for Behçet's disease. Surgical revascularization was performed in all four patients, mainly with prosthetic grafts, one with patch aortoplasty. The postoperative period was complicated by paraplegia and thrombosis of the prosthetic graft in the patient who underwent emergency surgery. On the basis of these cases and cases reported in the literature, it can be concluded that morbidity and mortality are high because of the etiology underlying vascular involvement in Behçet's disease.

Adult↗
PubMed2001

[Aneurysm of a persistent sciatic artery: five case reports].

We report five cases of a persistent sciatic artery. The lesion was unilateral in all cases. Four patients were treated by exclusion of the aneurysm with ligature of the internal iliac artery with an associated femoropopliteal bypass in two. Surgical treatment was declined by one patient. We discuss the embryology, pathology, clinical aspects and surgical procedures involved.

Adult↗
PubMed1999

[Allergy to protein hydrolysates. Report of 30 cases].

AIM OF THE STUDY: To describe the population of children allergic to cow's milk protein and their usual substitutes made of protein hydrolysates, and who are efficiently taken care of by using Neocate, an amino acid based formula. PATIENTS AND METHODS: Allergy to protein hydrolysates was diagnosed in 30 infants, aged from 15 d to 13 months (median = 3 months), who remained symptomatic while receiving a protein hydrolysate for 15 d to 12 months (median = 1.8 months). After a complete clinical and biological evaluation, an amino acid based diet using Neocate was attempted, followed after one month by an oral challenge test with the protein hydrolysate. RESULTS: Symptoms occurred mainly in the digestive tract (25 cases) in the form of regurgitations (18 cases), diarrhea (17 cases) and colicky pain (10 cases); failure to thrive was seen in ten cases. Neocate improved the clinical condition rapidly (within 3-10 d), and allowed the children to gain weight (27.5 +/- 10.8 g/d). Skin prick tests with cow's milk hydrolysates were positive in 13 out of 26 children; total IgE was raised in cases of cutaneous symptoms (six cases), and associated with increased specific IgE for cow's milk. During the intestinal permeability test, the lactitol/mannitol ratio which initially increased, decreased following Neocate (6.58 +/- 2.92% vs. 3.47 +/- 1.58%, P = 0.0004). Multiple food allergies were present in 22 cases. During challenge with a hydrolysate, the clinical reaction was immediate in 13 cases, partially delayed in 13 cases and delayed in four cases. CONCLUSION: Allergy to cow's milk hydrolysates may occur and has to be considered in the presence of anaphylaxis and also chronic digestive symptoms such as regurgitations, diarrhea and colicky pain, when these symptoms persist during cow's milk free diet.

Amino Acids↗
PubMed1998

[Neurologic complications after surgery for subrenal abdominal aorta. Report of a case of Behcet's syndrome].

Medullary ischemia is an uncommon and serious complication of subrenal aortic surgery. It generally occurs after surgery for ruptured aneurysms and second operations on the aorta. We report the case of a 29-year-old patient who had Behçet's disease with multiple arterial complications. The patient underwent emergency surgery for ruptured aneurysm of the abdominal aorta. An aorto-aortic prosthetic graft was implanted. The postoperative period was complicated by paraplegia and thrombosis of the prosthetic graft with dissection of the iliac arteries. The patient was reoperated and an aorto-bifemoral bypass was installed. After two years, the patient has recovered part of his neurological deficiency. The pathogenesis of this complication is well known, but prevention remains a challenge.

Adult↗
PubMed1997

[Arterial complications of Behcet's disease. Report of 13 cases].

Vascular involvement, usually venous thrombosis, is common in Behçet's disease. Arterial manifestations, usually aneurysms or more rarely occlusion, are less common. We analyzed 13 cases of Behçet's disease with arterial complications. This fourth series in the literature was collected over 11 years. There were 12 men and 1 woman, mean age 41 +/- 7 years. Mean delay to arterial complications was 5.8 years (maximum 20 years) after the first sign of the disease. In the 13 patients in our series, there were a total of 18 arterial lesions, including one aneurysm and one stenosis of the internal carotid artery. There were 2 cases (10%) with lesions of the aorta (aneurysms). Approximately half of the arterial lesions (7/18) involved the femoral artery. There were 11 localizations on the femoropopliteal axis (11 aneurysms). One aneurysm of the humeral artery was the only localization in the upper limb. Vascular involvement was limited to arterial lesions in 9/13 patients with multiple lesions at different localizations in 2 patients. In two others, a second arterial localization occurred secondarily. All patients except one were operated. Mid-term complications are: 1 death and 4 thrombi including 3 with good results after reoperation. In these patients with Behçet's disease, risk of severe complications is important, requiring long-term surveillance.

Adult↗
PubMed1997

[Glomangioma of the popliteal fossa. Apropos of a case].

Glomus tumours are relatively uncommon lesions most frequently found in the extremitis, usually in the digits. They are most often solitary lesions but multiple tumours have been reported. If the triad of pain, tenderness and cold intolerance should raise the clinical suspicion of a digital glomus. The histological exam is necessary in the extra digital glomus. We reported a case of fossa poplitea glomangioma with tibialis nerve compression. The treatment of choice was a surgical exision. But the tumour have been redivided a year later without malign transformation.

Follow-Up Studies↗
PubMed1989

[Arteriopathies of the lower limbs in adults under 40 years of age].

In Morocco, thromboangiitis obliterans (TAO) is the most common cause of obliterating arteriopathy in subjects under 40 years: 252 cases out of 291, versus 21 cases of diabetic arteritis and 18 miscellaneous causes. The anatomo-clinical appearance is in keeping with the criteria for Buerger's disease with the exception of superficial migratory thrombophlebitis. The absolute basis of treatment has been the total definitive discontinuation of smoking. Platelet anti-aggregant agents have also been used. Aside from limited resections of distal gangrenous regions (168 cases), surgery has been limited to lumbar sympathectomy without adrenalectomy (154 cases). Out of 133 patients regularly followed up for more than one year, results were good in 102 patients. The 39 poor results occurred exclusively in patients who continued or restarted smoking.

Adult↗
PubMed1987

Radiotherapy of choroidal malignant melanomas.

Choroidal malignant melanomas are relatively rare tumours and can have a very long natural history. The management of these tumours is controversial. The results of a study of a small group of patients treated by radiotherapy, either as primary treatment or following local excision or enucleation, are presented here. The value of radical radiotherapy in the management of choroidal malignant melanoma is discussed.

Adult↗
PubMed1987

Traumatic rupture of the thoracoabdominal aorta.

We report a case of traumatic rupture of the thoracoabdominal aorta that was successfully repaired 3 days following the accident. Associated lesions included rupture of the left renal and celiac arteries. This rare lesion should be suspected in the victims of violent hyperextension of the body with or without a fracture of the dorsolumbar spine. Aortography is diagnostic. Whenever possible preoperative angiographic visualisation of the spinal cord arterial supply should be performed.

Adult↗
PubMed1986

Arterial manifestations in Behçet's disease: four new cases.

Four new arterial lesions observed with Behçet's disease are reported: two popliteal aneurysms, one carotid aneurysm and one carotid stenosis. The clinical features, therapeutic modalities and postoperative complications of these uncommon lesions are reviewed briefly.

Adult↗