Search results for "scalp"
showing 10 items of 102 documents
Clinical Experiences with Clamp Electrodes in Fetal Scalp for Simultaneous pO2 and ECG — Registration
1973
The development of a scalp electrode for continuous measurement of fetal mean tissue-PO2 and simultaneous registration of ECG respectively fetal heart rate has been described previously (1). The electrode mechanics and electronic equipment must be adapted to the various demands of the birth process and the labor room environment. The technical results are not yet refined, when unfavorable conditions prevail, artifacts may be anticipated. A brief review of the proceedings in electrode clamp measurements should be presented.
How does fiscal policy react to wealth composition and asset prices?
2012
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Scalp, basal epidural and intravascular far-field recordings after median nerve stimulation: evidence for a separate N18a potential
2000
Far-field somatosensory evoked potentials (SSEPs) after median nerve stimulation were recorded from scalp- (Fz), epidural- (ED) and intravascular electrodes (basilar artery [Bas]) to study the nature of the controversial N18a component of the widespread N18 potential. In healthy volunteers frequently an N18a potential was recorded at Fz. Simultaneous Fz and ED recordings at the pontomesencephalic junction as well as Bas-recordings at the caudal basilar artery showed N18a components identical in latency and shape. With intravascular recordings the shapes differed between the top of the basilar artery and the caudal artery recordings. These findings support the existence of a separate N18a po…
Kystes trichilemmaux ossifiants multiples du cuir chevelu : un cas familial
2012
Resume Introduction Le kyste trichilemmal, egalement appele kyste pilaire, est un kyste epithelial dermique developpe aux depens du follicule pileux. Le cuir chevelu est la localisation la plus frequente de cette lesion. Les cas ossifiant et familiaux sont rares. Observation Nous rapportons un cas de kystes trichilemmaux multiples du cuir chevelu, decouverts chez femme de 61 ans ayant des antecedents familiaux. Le diagnostic a ete confirme par l’histologie de la piece operatoire. Les kystes trichilemmaux se caracterisaient par remaniements intrakystiques, sous forme d’ossification. L’etendue des lesions a necessite une exerese chirurgicale elargie du cuir chevelu. La reconstruction a ete fa…
Can antepartum computerized cardiotocography predict the evolution of intrapartum acid-base status in normal fetuses?
2004
Background. To study the relationship between antepartum computerized cardiotocography (cCTG) and the evolution of intrapartum fetal acid-base balance in a low-risk population. Methods. Forty-nine healthy fetuses were prospectively followed up by antepartum cCTG (Oxford System 8002), fetal scalp blood sampling at the onset of the active phase of dilatation (3 cm) and at the beginning of the second stage of labor (10 cm) and study of acid-base status at birth in the umbilical cord. Correlation studies and linear regression analysis were performed. Results. Normal prelabor cCTG was followed by normal fetal acid-base balance in the different study periods. No relationship was found between cCT…
Zum sogenannten ?Pilar Tumor of the Scalp?
1969
Histomorphologische Beschreibung eines klinisch als Atherom imponierenden Kopfhauttumors bei einer 54 jahrigen Patientin mit diesbezuglicher eigener wie familiarer Disposition. Im vorliegenden Falle lag die Entwicklung eines dichotom gegabelt erscheinenden Tumorkomplexes vor, dessen unmittelbar aneinandergrenzende Teile vollig unterschiedlich strukturiert waren. Diese uberraschend hochgradige Spezialisierungs- und Proliferationstendenz einer solchen “Pilar (sebaceous) cyst” fuhrt dabei zu Aspekten, die im einzelnen nicht nur einer Talgdrusen- oder Epidermiscyste, einem Epithelioma calcificans Malherbe, sondern selbst auch einem granularen Neurom vom Typ des Abrikossoff-Tumors ahneln konnen.…
A case report of a difficult dissection of the iliac vessels conducted by means of the harmonic scalpel during a kidney transplantation
2011
Background. The “difficult” preparation of iliac vessels in the kidney transplant recipient caused by a perivascular fibrosis with satellite lymphadenopathy is sometimes burdened by post-transplant complications (lymphocele, seroma and hematoma). Both iliac vascular adhesions and satellite lymphoadenopaty are often due to reiterate femoral cannulation aimed to hemodialysis. Patients and Methods: The case report concerns a 60 years old female uremic patient, on dialysis for about 4 years with perivascular fibrosis and pelvic lymphadenopathy caused by bilateral femoral artery catheterization. In the course of kidney transplant, preparation of the iliac vessels was performed by ultrasonic scal…
Helical Tomotherapy® is a safe and feasible technique for total scalp irradiation
2017
Angiosarcoma of the scalp is a rare aggressive tumor that affects elderly patients. Chemoradiation is the treatment of choice for multicentric and extensive disease. The shape of the scalp represents a dosimetric challenge in terms of achieving a homogeneous concave dose distribution with coverage of the entire target volume and an acceptable organs-at-risk sparing. We report a case of an 81-year-old man with a multifocal angiosarcoma of the scalp treated with Helical TomoTherapy® (Accuray Inc., Sunnyvale, CA, USA) intensity modulated radiotherapy. This technique allows precise and daily verifiable coverage of the target keeping the dose to the organs at risk within the constraints.
A Framework to Assess the Information Dynamics of Source EEG Activity and Its Application to Epileptic Brain Networks
2020
This study introduces a framework for the information-theoretic analysis of brain functional connectivity performed at the level of electroencephalogram (EEG) sources. The framework combines the use of common spatial patterns to select the EEG components which maximize the variance between two experimental conditions, simultaneous implementation of vector autoregressive modeling (VAR) with independent component analysis to describe the joint source dynamics and their projection to the scalp, and computation of information dynamics measures (information storage, information transfer, statistically significant network links) from the source VAR parameters. The proposed framework was tested on…
Reconstruction of full thickness scalp defects after tumour excision in elderly patients: our experience with Integra dermal regeneration template.
2010
Summary Background Scalp reconstruction after wide tumor excision is particularly challenging. Free tissue transfers, local flaps, or skin grafts can be used but present some disadvantages especially with old patients with local advanced cancers, systemic diseases and in patients with a prior history of recurring scalp skin cancers in which the risk of burying a recurring tumor with a flap is likely. The Authors expose their early experience with Integra ® dermal regeneration template for scalp reconstruction after scalp tumor excision. Methods Eight patients with primary or secondary scalp tumor underwent a first surgical procedure under local anaesthesia for tumor removal and Integra ® po…