PubMed Health⌕ Search

Biomedical subjects

J Duarte

Publications and source records attributed to J Duarte.

At least 91 records · Page 5Linked to original sources
PubMed1985

Left atrial ball thrombus.

The existence of a freely-floating thrombus in the left auricle is a rare finding in mitral pathology. Diagnosis by two-dimensional echocardiography has been described by various authors (1, 2, 3). In our case echocardiographic diagnosis of auricular thrombus was not possible at the beginning, given the bad ultrasonic window. Only when the thrombus floated freely in the left auricle it was detected in the region of the mitral valve, in spite of the bad ultrasound window.

Aortic Valve Insufficiency↗
PubMedDate not supplied

[Epidemiological, clinical and prognostic aspects of subarachnoid hemorrhage in Segovia].

INTRODUCTION: Subarachnoid hemorrhage is a disorder commonly seen as a neurological emergency, with an incidence of 11-19/100,000 persons; 12% of the patients die without seeking medical attention, 63% die during the first year and 72% during the first five years. OBJECTIVE: To describe the epidemiological, clinical and prognostic factors of subarachnoid hemorrhage. PATIENTS AND METHODS: We made a retrospective study of the cases of primary subarachnoid hemorrhage occurring in the province of Segovia between January 1993 and November 1997. The patients presented with a clinical history compatible with subarachnoid hemorrhage which was confirmed by cranial CT and/or lumbar puncture. Angiography of the supra-aortic trunks was done to detect vascular malformations. The patients were classified according to clinical grades on the criteria of Hunt and Hess. RESULTS: There were 54 primary subarachnoid hemorrhages (29 men and 25 women); the average age was 59 years. The average annual incidence was 7/100,000 persons; 59% were at Hunt and Hess stage I-II. Headache was the presenting symptom in 67% of the patients. The patients with normal CT scans (20%) were of lower clinical grade and consulted later; 4% had further bleeding and all these died. There were associated neurological complications in 46% and systemic complications in 28%. Of the 44 arteriographies done, in 14 there were positive findings, 11 aneurysms (five were embolized and five treated surgically), and three arteriovenous malformations (two treated surgically). On discharge 7% had severe neurological sequelae. Mortality during the acute phase was 13%. CONCLUSIONS: Subarachnoid hemorrhage is still a serious condition, with a high rate of mortality during the acute phase (13%) and of sequelae (20%). The clinical grade and cranial CT findings were the main factors in prognosis.

Adult↗
PubMedDate not supplied

[Epidemiology of primary dystonia].

INTRODUCTION: Dystonia is the most difficult disorder of movement to recognize, and in which errors of diagnosis most often occur. DEVELOPMENT: We review the classification of the dystonias and the most important features of the different subdivisions. With regard to epidemiology, the exact incidence and prevalence of primary dystonia are not known. Figures vary considerably depending on the source, method of study and ethnic group of the population studied. In Europe the only study made of focal dystonias was carried out in Segovia, where the prevalence was about 300 persons per million. Finally we discuss some recent genetic findings related to the dystonias, which should stimulate more detailed studies to clarify the genetic basis of focal dystonias.

Age of Onset↗
PubMedDate not supplied

[Radial nerve injury caused by external compression during the dissection of the internal mammary artery in coronary surgery].

Injury of the radial nerve produced by external compression during dissection of the internal mammary artery during surgery of ischemic heart disease, is an infrequent event. The use of sternal retractors with only one rod may be the cause of these lesions. We report two cases of radial nerve paralysis produced as a consequence of external compression induced by a sternal retractor during dissection of the internal mammary artery. In the first case the patient showed loss of power of the external muscles of the left forearm and a clear flexion of the left hand. The second patient presented loss of power of the left hand and impossibility to extend the carpus and fingers. In both cases the lesion was reversible.

Equipment Design↗
PubMedDate not supplied

Acute renal failure associated with cardiac surgery.

We present the incidence, management and outcome of acute renal failure (ARF) in children who underwent cardiac surgery. Fourteen (9%) from a total of 156 children developed ARF in our hospital in a 3-year period. Patients were aged 2 days to 15 years. Prerenal failure was present in 6 and renal type in the remaining 8 children. Peritoneal dialysis treatment was utilized in 58% of patients. Neurologic and respiratory complications were present. Mortality rate was 58% and related to underlying pathology and to complications in other organs. The management of these patients must be by competent personnel preferably trained in pediatrics.

Acute Kidney Injury↗