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Biomedical subjects

F Marconi

Publications and source records attributed to F Marconi.

At least 19 recordsLinked to original sources
PubMed1997

Combined transcranial Doppler and electrophysiologic monitoring for carotid endarterectomy.

The results of carotid endarterectomy can be improved by reducing the perioperative embolic and hemodynamic risks. Electrophysiologic monitoring, although reliable, cannot provide full information. In this study, we report on the combined use of transcranial Doppler (TCD) and electrophysiologic monitoring in 153 patients undergoing 166 carotid endarterectomy procedures. TCD monitoring confirmed the low incidence of intolerance to cross-clamp (1.8%), showing a good correlation with electrophysiologic monitoring. In addition, it frequently showed embolic signals immediately after clamp release, but never during carotid dissection or in the final operative phases. Furthermore, TCD allowed the detection of hyperperfusional flow patterns in four cases, making immediate and aggressive control of arterial pressure possible.

Aged↗
PubMed1997

Radiation-induced cerebral meningiomas. Case reports.

Two cases are presented of meningiomas following external cranial irradiation in which several features clearly indicate a causal relationship between radiotherapy and tumour development. In one patient multiple recurred meningioma was diagnosed 30 years after low-dose X-ray treatment of Tinea capitis; in the other patient the meningioma was diagnosed approximately 18 years after high-dose radiation therapy for astrocytoma. The features distinguishing radiation-induced meningiomas from other meningiomas are reviewed. The use of radiation therapy only in those cases in which there is clear evidence that it will have beneficial effects and that these effects will outweigh the risks is emphasized.

Adult↗
PubMed1995

Reconstruction of the umbilicus: a simple technique.

The author proposes a simple technique for umbilical reconstruction. The new umbilicus is represented by an island flap that is sunken and then sutured to a circular skin defect drawn at the intersection of the xiphoid-pubic line and the transverse umbilical line. Before sinking, an accurate excision of the subcutaneous fat of the skin island is performed. A natural-looking elliptical scar is obtained, without any additional scar and providing good aesthetic results. The technique proposed can provide a good alternative to existing umbilicus reconstruction techniques.

Humans↗
PubMed1995

[Lateral calcaneal flap in the reconstruction of the calcaneal and malleolar region].

The authors discuss the efficacy of the lateral calcaneal artery flap in repairing the calcaneal and malleolar regions. The lateral calcaneal artery flap is a safe flap, with constant vascularization represented by the lateral calcaneal artery and the external saphenous vein; the flap has a sensory nerve (the sural nerve) and is a sensory flap. Its use in the calcaneal and malleolar region is very safe, because the vascular pedicle is constant and surgical transfer easy.

Ankle↗
PubMed1995

Spinal cavernous angioma producing subarachnoid hemorrhage. Case report.

A case of subarachnoid hemorrhage due to intramedullary cavernous angioma at the T9 level is presented. Literature dealing with subarachnoid hemorrhage due to intraspinal lesions is reviewed. The majority of cases of spinal subarachnoid hemorrhage are due to arteriovenous malformations, whereas bleeding by cavernous angioma is extremely rare. The subarachnoid hemorrhage is rare event (1.8%) in our series too. The clinical presentation of severe back pain with radicular component associated with signs of meningism (Fincher's syndrome) led us to carry out magnetic resonance imaging. This gave accurate diagnosis for surgical treatment. Laminectomy at T9-T10 level and total microsurgical removal of the vascular malformation were performed with total functional recovery.

Adult↗
PubMed1994

Bilateral traumatic abducens nerve palsy. Case report.

Bilateral traumatic abducens nerve palsy after head injury is a rare event. We present a case associated with skull fractures and intracranial hematoma, with complete recovery of abducens nerve palsy after six months. The mechanism of the lesion, the clinical conditions and the radiological findings are presented.

Abducens Nerve↗
PubMed1994

[Idiopathic unilateral hypoplasia of the breast].

Unilateral hypoplastic breast is a rare anomaly. The correction of the asymmetry is usually achieved by the use of breast implants or breast expanders. Sometimes the controlateral breast must be modified to gain a good symmetry.

Adult↗
PubMed1993

Kasabach-Merritt syndrome associated to angiosarcoma of the breast. A case report and review of the literature.

INTRODUCTION: Kasabach-Merritt syndrome is characterized by the association of a consumptive thrombohemorrhagic disorder and angioma occurring usually in children. In the present study, a case of Kasabach-Merritt syndrome associated to an angiosarcoma of the breast is reported. CLINICAL HISTORY: The tumor together with the thrombohemorrhagic disorder manifested in a 28-year-old woman. The patient underwent mastectomy. The tumor recurred in the same site 2 years later. The patient died of severe anemia 8 years after the first appearance of the angiosarcoma. MATERIAL AND METHODS: Tissues were formalin fixed and paraffin embedded; in addition, selected sections were immunohistochemically stained. RESULTS AND CONCLUSIONS: A well-differentiated angiosarcoma was visible throughout the removed organ. A review of the literature showed that only 6 cases of Kasabach-Merritt syndrome associated to malignant vascular tumors have been previously reported. All these 6 cases occurred in adult patients. On the contrary, Kasabach-Merritt syndrome associated to benign vascular tumors affects children. This is the first case occurring in the breast.

Adult↗
PubMed1993

Spontaneous regression of intracranial arteriovenous malformation.

Spontaneous regression of an arteriovenous malformation is rare. When complete or partial regression occurs, an associated factor is usually involved, such as intracranial hemorrhage, surgery, radiation therapy, or a new neurological deficit. Another case in which the resolution was totally spontaneous is presented here. We discuss the importance of transcranial doppler revealing the hemodynamic changes in the cerebral arteries in the presence of an AVM and when the latter is thrombosed. Several mechanisms for regression are considered, and we focus on the dissection of the afferent vessel, pointing out the role of such an event in the natural history of AVM.

Adult↗
PubMed1993

Cosmetic reconstruction of the mons veneris and lower abdominal wall by skin expansion as the last stage of the surgical treatment of bladder exstrophy: a report of three cases.

The results of the correction of the medial scar depression and diastasis of the pubic hair of the mons veneris in three postpuberal female patients operated on for bladder exstrophy are reported. The reconstructive surgery is carried out using skin expanders. The expanded skin is utilized to create two dermoadipose flaps to fill the medial depression, to outline again the public hair areas, and to allow sutures without tension.

Abdominal Muscles↗
PubMed1993

Reduction mammaplasty and correction of ptosis: a personal technique.

New upper pedicle reduction mammaplasty and mastopexy techniques are presented. The surgical steps are described point by point. An analysis is made of the results obtained in 25 patients who underwent surgery between November of 1987 and November of 1988 and were examined in December of 1990 with a mean follow-up of 31.5 months. An assessment was made of the postoperative ptosis, which was minimal in 76 percent of patients. The overall assessment of breasts was satisfactory (good mammary morphology and a correct position of the nipple-areola complex). Nipple-areola complex sensitivity was unchanged in 80 percent of patients. Good-quality inframammary scars were observed in 92 percent of patients, with scar length never exceeding 4 cm. The overall complication rate was 32 percent, but only 12 percent were major complications. The technique presented is excellent when the quantity of glandular tissue to be removed is less than 400 gm, and it is not therefore recommended for gigantomasties.

Adolescent↗
PubMed1993

Primary cauda equina tumors.

During the last seven years (1985-91) 28 primary tumours in the cauda among 104 intraspinal tumors were observed. The largest group (71%) comprised ependymomas and neurinomas. The rest included 5 lipomas, 2 astrocytomas and 1 epidermoid. Low-back pain without or with sciatic or crural irradiation was the most common initial symptom. The length of symptomatology is generally measured in months, because pain is erroneously referred to discal pathology for long time. The X-ray standard test and the CT scan have been of modest utility in the diagnosis of these lesions, but however they have been necessary for diagnostic screening. The MNR, a bloodness test, showed an important diagnostic value for the identification of these tumors; it is also useful in follow-up to exclude recurrence. The lipoma's and ependymoma's surgery, although performed by microsurgical techniques, showed great problems. Total removal of the ependymomas assured no recurrence at the follow-up. Sphincter disturbances were frequent after the operation, but they disappeared after some months. In most patients with lipomas the resection was partial, but at follow-up they were symptomless. Neurinomas' surgery presented less technical difficulties and the postoperative course was more favorable. Astrocytomas underwent to radiotherapy but their prognosis is not favorable.

Adolescent↗
PubMed1992

Assessment of intracranial circle after carotid endarterectomy.

To evaluate haemodynamic effects of carotid endarterectomy on cerebral circulation, transcranial Doppler sonography was performed on 69 patients operated for unilateral carotid stenosis greater than 70%. Pre- and post-operative Vm and PI on bilateral middle-cerebral arteries, Vm PI and flow direction on ipsilateral anterior cerebral artery and Vm on basilar artery were evaluated. All patients presented more or less evident preoperative haemodynamic alterations of cerebral circulation and after surgery showed a normal distribution of cerebral blood supply.

Brain Ischemia↗