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Biomedical subjects

J L Yunes-Zarraga

Publications and source records attributed to J L Yunes-Zarraga.

2 recordsLinked to original sources

[Barotrauma in newborns. Study of 81 cases at a neonatal intensive care unit of a province].

We present 81 patients with diagnosis of air leaks in a Neonatal Intensive Care Unit (NICU). During 6 and a half year period. Air leaks were present in a 7.3% of overall admissions and in 18% in those whom received mechanical ventilation. We observed pneumothorax in all the patients, accompanied by pneumomediastinum in 12% and with interstitial emphysema in 7%. Other forms of air leak were present only rarely. Eighty percent of our patients were managed with intrapleural drainage. Almost 40% of events happened after resuscitation of tracheal aspiration management. The concomitant disease most often seen was respiratory distress syndrome (RDS) during it's convalescent period. Most of them had been previously placed in mechanical ventilation. We had a very high death rate, most significant in the group with weight less than 2,500 g in which 80% died. An analysis between our findings and those in literature was made.

Barotrauma↗

[Diagnostic problems in neonatal hypocalcemia].

Fifteen newborns were studied in the neonatal ICU of the Infantile Hospital of Tamaulipas in whom ICH, neural infection, tetanus, HIE++ and electrolyte disturbances were ruled out, with clinical data highly suggestive of hypocalcemia. Determination of both QTc and QoTc intervals by ECG and measurement of levels of total serum calcium and calcium in CSF and calculation of ionic calcium by means of the McLean Hastings nomogram were made in each patient. Calcium gluconate was administered IV as a therapeutic test. Presence and disappearance of clinical manifestations were correlated with laboratory tests during the suspicious period, 8 and 24 hours after treatment was begun. There was no correlation between clinical features and QTc or QoTc, nor between total serum, CSF or ionic calculated calcium. We conclude that the diagnosis of hypocalcemia in centers that do not have the specific electrode for direct Ca +/- measurement, should be sustained basically when after IV administration of Ca, symptomatology disappears and that the real usefulness of laboratory determination of total C, of ionic calcium, of QTc and QoTc is very limited.

Calcium↗