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Biomedical subjects

S Slaba

Publications and source records attributed to S Slaba.

At least 19 recordsLinked to original sources
PubMed2006

[Unusual location of a parathyroid adenoma: the carotid sheath].

We report the imaging features of an occult parathyroid adenoma with unusual location in the carotid sheath. Our patient presented with primary hyperparathyroidism. Following negative neck ultrasound and scintigraphy, exploratory neck dissection with partial thyroidectomy was performed twice over a 2 day period without biological response. Cervical and mediastinal CT and MRI were performed with no result. Digital angiography showed a tumoral blush supplied by the left inferior thyroid artery and located in close contact with the carotid artery. Venous sampling of the neck confirmed the left location of the adenoma and a third surgical intervention found the adenoma embedded in the left carotid sheath. This is an unusual case of parathyroid adenoma that necessitated the use of several imaging techniques.

Adenoma↗
PubMed2006

[Pseudoaneurysm of the abdominal aorta due to retroperitoneal lymph nodes, diagnosed by Doppler ultrasound and treated by embolization].

OBJECTIVE: To report a case of pseudoaneurysm of the abdominal aorta due to retroperitoneal enlarged lymph nodes. MATERIALS AND METHODS: A 40 years old patient, with known sarcoma and metastatic retroperitoneal lymph nodes was referred for abdominal ultrasound because severe abdominal pain after defecation. RESULTS: The Doppler examination revealed magma of retroperitoneal lymph nodes surrounding the abdominal aorta inside of which a saccular collection of circulating blood, communicating with the aorta, was detected. The spectrum registered in the channel revealed a bidirectional flow compatible with a pseudoaneurysm. MR angiography confirmed the diagnosis. Successful occlusion was done by coil embolization. CONCLUSION: Pseudoaneurysms of the abdominal aorta are very rare. We report the first case of pseudoaneurysm arising in retroperitoneal lymph nodes. Diagnosis by Doppler ultrasound allowed a rapid treatment by embolization.

Adult↗
PubMed2005

[Three-dimensional renal angiography].

The usefulness of three-dimensional angiography is not fully established except for neurovascular diseases. We report a case of significant renal artery stenosis not shown on conventional angiography because of its orientation along the axial plane, where 3D imaging allowed complete analysis of the lesion leading to endovascular treatment.

Aged↗
PubMed2005

[Unusual variation of the splenic artery].

The authors describe an exceptional variation of the splenic artery found on a preoperative angiogram and confirmed after surgery on splenopancreatectomy specimens. Total duplication of the splenic artery is herein reported for the first time and suggest the need for a new classification of digestive arteries anomalies.

Aged↗
PubMed2005

[Stiffened triple axial catheterization of tortuous cervivoencephalic vessels].

Tortuous anatomy of the cervicoencephalic vessels can cause failure in 4 to 6% of interventional procedures by slippage of the material back in the aorta, kinking or difficulty to move forward a balloon. stent or microcatheter. We report on an old patient with high vascular tortuosity, referred for embolization of a ruptured aneurysm of the left inferior cerebellar artery. Access wasn't possible until we used a "triple axial system" with a long 7F sheath, positioned in the left subclavian artery and strongly supported by a super stiff guidewire with its distal end floating freely in the vascular lumen. Inside the sheath and parallel to the guidewire, we pushed a 4F catheter till the mid-vertebral artery. The microcatheter-microguide system tracked through it, towards the aneurysm, with the backward tendency being neutralized by the increased stiffness. Our technique presents the advantage of a strong back-up support, without increased risks such as vasospasm, clotting or dissection, since the guidewire serving as a stiff rail, lies exteriorly to the navigated vessel. Efficiency of this elegant and relatively low risk solution has yet to be proved in larger series.

Aged↗
PubMed2004

[Gadolinium-medium filter-protected percutaneous stended carotid angioplasty].

We report on a patient who underwent a percutaneous carotid angioplasty with stenting. The procedure was protected by a filter and used gadolinium instead of iodine. No neurological or renal complication occurred. This observation represents one of the first publications describing the use of this contrast medium in a complex neuroradiological intervention.

Adult↗
PubMed2004

[Reversed carotid filter for the prevention of distal emboli during an iliac recanalization].

We describe the use of a carotid filter in preventing distal emboli during the recanalization of an occluded left iliac stent two months earlier. The filter was reversed and introduced through an ipsilateral 6 French sheath along its 0.014" guidewire and placed against the occluded stent. The stent is recanalized using a hydrophilic guidewire controlaterally and a new stent was inserted into the old one. The filter was retracted into the introducer by pulling cut the special 0.014 guidewire, with a 0.018" diameter tip, and the whole system was removed via the left common femoral artery. Many emboli were found in the removed filter. We noted that the recanalization of an occluded stent causes more distal embolization than the native iliac artery. This technique allows placing the filter between the embolic lesion and the distal arterial territory, without passing through the lesion, especially since fibrinolysis may not be efficient in 2-months-old occlusions.

Carotid Stenosis↗
PubMed2004

[Imaging of an aberrant occipital artery arising from the extracranial segment of the internal carotid artery].

We report a case of asymptomatic occlusion of the right internal carotid artery owing to the presence of a rare anatomic variant (occipital artery originating from the extracranial segment of the internal carotid artery). During the preoperative workup for a coronary artery bypass grafting (CABG) in a 65-year-old patient, an occlusion of the right internal carotid artery was visualized on Duplex ultrasound. Distally to the occluded site, the artery was patent thanks to a vessel parallel to it but with a reverse blood flow. MRA and angiography of the brachiocephalic trunk confirmed the occlusion of the internal carotid artery and its opacification distally via an aberrant occipital artery arising at the supra-bulbar level and communicating with the right vertebral artery. Therapeutic abstention was decided and the patient was operated of CABG without any neurological complication. Occipital artery arising from the internal carotid artery is a rare anomaly. Its association with internal carotid artery occlusion may be beneficial because it makes surgery possible, even in a chronic stage, if the patient is symptomatic. If the patient is asymptomatic, therapeutic abstention could be considered.

Aged↗
PubMed2004

[Angioplasty with stenting for buttock claudication].

We report the case of a patient presenting severe buttock claudication with normal neurologic and osteoarticular exams. He underwent a guidewire recanalization of his occluded superior gluteal artery followed by a percutaneous angioplasty with stenting, resulting in total relief of symptoms. This observation represents the first publication describing the use of a stent with recanalization of the gluteal artery. The technique seems promising for buttock pathology.

Angioplasty, Balloon↗
PubMed2002

Linear and whorled nevoid hypermelanosis with bilateral giant cerebral aneurysms.

A 24-year-old woman presented with bilateral giant intracavernous carotid artery aneurysms manifesting as a cavernous sinus syndrome on the left side, and anisocoria, ophthalmic pain, and oculomotor paresis on the left side. Physical examination showed mild hyperextensibility of the metacarpophalangeal joints, amelogenesis imperfecta, and hyperpigmentation following Blaschko lines. Analysis of the NEMO gene for incontinentia pigmenti syndrome and of collagen III for Ehlers-Danlos type IV was normal. Skewed X-inactivation patterns in blood lymphocytes were detected. To the best of our knowledge, this association of linear hyperpigmentation and cerebral aneurysms has never been previously reported.

Adult↗
PubMed2002

[Microcatheterization with gadolinium and glue embolization for post-biopsy arteriovenous fistula in a patient with renal failure].

Percutaneous renal biopsy is frequently used in diagnosis of renal dysfunction. Nevertheless, complications, mostly vascular, may occur. Treatment must be minimally invasive with nephron preservation, especially in kidney failure. We present an interesting therapeutic approach with highly selective catheterization under gadolinium and glue embolization, leading to total cure of iatrogenic fistula without renal deterioration.

Adhesives↗
PubMed2002

[Distal glue embolization in a patient with gastrointestinal hemorrhage].

This is a case report, concerning the endovascular use of N-butyl-2-cyanoacrylate, for treatment of a digestive hemorrhage from a distal branch of the superior mesenteric artery, leading to a successful outcome. This material, usually used in brain angiomas, constitutes an alternative for digestive embolization, which is quick, precise and definitive, without additional risk in experienced hands.

Aged↗
PubMed2001

Left-sided omental torsion: CT appearance.

A 34-year-old male presented with exquisite left flank pain. Computed tomography showed a hyperdense vascular structure surrounded by whirling linear streaks situated in the greater omentum under the splenic flexure of the colon. Omental stranding extended caudally into the pelvis where part of the inflamed omentum entered a left inguinal hernia sac. Surgery revealed left-sided torsion of the greater omentum. Left-sided omental torsion is infrequent and pre-operative diagnosis is rarely established. The CT findings of an omental fatty mass with a whirling pattern is characteristic of omental torsion. Preoperative diagnosis is important because conservative management has been suggested.

Adult↗
PubMed2001

Combined cerebral and lower-limb revascularization.

Brachiocephalic atherosclerosis and aortoiliac occlusive disease are often encountered concomitantly, The authors report a technique of combined brachiocephalic and femoral revascularization in which a single transthoracic approach is used.

Arterial Occlusive Diseases↗
PubMed1999

[Ultrasonographic evaluation of the kidney, liver and spleen size in children].

BACKGROUND: The aim of our study was to establish a standard growth curve of renal, hepatic and splenic dimensions with respect to age, and to find if any relationship existed between these different curves. PATIENTS AND METHODS: One hundred and fifty abdominal ultrasound studies were obtained on 62 male and 88 female normal children free of any chronic disease, whose ages ranged from 0 to 15 years. Hepatic, splenic and renal dimensions were obtained in a similar and reproducible fashion for all patients. A statistical study of the measurements obtained compared to the age was performed by dividing the subjects into five groups according to age, and after calculating the mean size and variance. RESULTS: Standard growth curves for the liver, kidney and spleen were constructed. Compared to age, splenic size follows the same growth as that of the kidneys, with a constant ratio. The growth pattern of the liver parallel the renal curve with a mean difference of 2.72 cm. CONCLUSION: A moderate enlargement of spleen and liver is difficult to evaluate only by clinical examination. Ultrasound may detect it by using the kidney size as a reference.

Adolescent↗
PubMed1999

[Double hemorrhagic complication of endo-urologic drainage in single kidney].

Hemorrhage is the most worrisome complication of percutaneous renal procedures, and usually occurs early in the postoperative period. The incidence of severe arterial injury is 1 to 2%. We report a patient who had 2 bleeding episodes on a solitary kidney. The first, which occurred early after the procedure, was due to an arteriocaliceal fistula treated by coil embolization. The second bleeding episode occurred two weeks later, and was caused by erosion of a lumbar artery; it was embolized by microparticles. To our knowledge, this is the first report of the imaging findings. In summary, when bleeding occurs after endourologic procedures, renal as well as extrarenal parietal causes should be investigated.

Adult↗