Biomedical subjects

L Alfonso Sánchez

Publications and source records attributed to L Alfonso Sánchez.

3 recordsLinked to original sources

PubMed2000

[CO(2) laser treatment of sialolithiasis].

Sialolithiasis of the submaxillary gland is rare in the pediatric population. We report the case of a 13-year-old boy who presented submandibular tumefaction of 7 months evolution, which increased after meals. Localized lithiasis in Wharton s duct was observed in submaxillary sialolithiasis. Treatment was intraoral extraction with CO(2) laser and after recovering from the anesthetic, the patient was discharged.This technique shortens surgical time, facilitates hemostasia and reduces edema and postoperative pain. The procedure is suitable for ambulatory surgery.

Adolescent↗

PubMed1996

[Continuous hemofiltration. Development of an experimental model].

OBJECTIVE: Continuous hemofiltration is an extracorporeal technique used to eliminate water and solutes by convective transport through a hemofilter. The aim of this study was to develop an experimental model of arterio-venous and veno-venous continuous hemofiltration in order to gain experience before its clinical application in human neonates. MATERIALS AND METHODS: Twelve white New Zealand adult rabbits were anesthetized, tracheotomized and connected to a continuous flow neonatal ventilator. Continuous arterio-venous hemofiltration (n = 6) was performed via catheters placed in the carotid artery and jugular vein and veno-venous hemofiltration (n = 6) by a double-lumen catheter located in the inferior vena cava. Heart rate, arterial pressure, pH and blood gases, and the volume of ultra-filtrate were monitored and recorded for a three hour period. RESULTS: In both groups a high rate of ultrafiltration was achieved. The volume of ultrafiltration decreased somewhat during the second hour and remained stable thereafter. No hemodynamic changes were detected. CONCLUSIONS: The development of an experimental model for continuous arterio-venous and veno-venous hemofiltration in rabbits, facilitated the implantation of these techniques in human neonates. The model may be used to train the staff of the Neonatal Intensive Care Unit and to eliminate difficulties with vascular access and the care of extracorporeal lines.

Acute Disease↗

PubMed1989

[Neonatal hypothyroidism secondary to the use of povidone-iodine].

The skin absorption of iodine products in neonates with inhibition of thyroid function has been documented in the past. The use of Povidone-Iodine is the most frequent cause of this type of intoxication. Three neonates in which Povidone-Iodine was used during and after surgery had hypothyroidism secondary to glandular inhibition. They were discovered during the routine Programme for Neonatal Metabolic Diseases and were treated as deficits persists on retesting at 14 days of age. Treatment was maintained during one year, and the follow up controls of TSH-T4 were normal. During the neonatal period the use of Iodine containing antiseptics should be avoided because the potential risk of intoxication and glandular inhibition.

Female↗