Hunan yi ke da xue xue bao = Hunan yike daxue xuebao = Bulletin of Hunan Medical University
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Hunan Yi Ke Da Xue Xue Bao · Jan 1998
[The applied value of BiPAP mechanical ventilation via facial of nasal mask before or after ordinary mechanical ventilation].
To expore the applied value of BiPAP ventilator before or after regular ventilation, 44 patients who had indicators of regular mechanical ventilation and 4 patients who had difficulty of getting free from endotracheal intubation mechanical ventilation were ventilated with BiPAP ventilator via facial or nasal mask. The results showed that 13/44 patients had good responses and avoided receiving regular mechanical ventilation with endotracheal intubation or incision. BiPAP ventilation was also effective in patients who were dependent on regular mechanical ventilatin.
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Hunan Yi Ke Da Xue Xue Bao · Jan 1998
[Influence of moderate hypothermia on the contents of 6-KETO-PGF1 alpha and TXB2 in brain tissues after cardiac arrest and resuscitation in dogs].
To investigate the effect of moderate hypothermia of whole brain (30 degrees C to 32 degrees C) on the levels of prostacyclin and thromboxane A2 in brain tissues after cardiac arrest and resuscitation. Twenty-one dogs were divided into four groups: Group A, nonischemic controls (n = 4); Group B, 15 minute cardiac arrest without reperfusion (n = 4); Group C, 15 minute cardiac arrest and standard resuscitation (n = 6); Group D, 15 minute cardiac arrest and moderate hypothermia (30 degrees C-32 degrees C). ⋯ In comparison with those in Group C, the levels of TXB2 and TXB2/6-Keto-PGF1 alpha ratio decreased dramatically (P < 0.01). It is concluded that the moderate hypothermia can depress the arachidonic acid metabolism and keep a certain balance between the activities of TXA2 and PGI2 during cerebral resuscitation.
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Hunan Yi Ke Da Xue Xue Bao · Jan 1997
[Clinical valuation color Doppler echocardiography for diagnosis of coronary artery fistula].
The purpose of this study was to investigate the advantages of color Doppler echocardiography in the diagnosis of congenital coronary artery fistula. Twenty-one patients with coronary artery fistula ranging in age from 3 to 28 years underwent color Doppler echocardiographic study 1991.4-1996.8. ⋯ The results indicate that color Doppler echocardiography can provide a panoramic view of coronary artery and the fistulous vessel with precise definition of the origin, the course of draingae site of the fistula. Therefore, it is the noninvasive method of first choice to diagnose congenital coronary artery fistula.
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Hunan Yi Ke Da Xue Xue Bao · Jan 1997
[The study of acute clinical electrophysiological effects of propafenone on paroxysmal supraventricular tachycardia using transesophageal atrial pacing technique].
Trans-esophagus atrial pacing (TEAP) was employed to evaluate the acute electrophysiological effects of propafenone administrated intravenously in 50 patients with SVT. Forty three of the subjects are patients with atrial ventricular reciprocating tachycardia (AVRT). Seven of them were involved in atrioventricular nodal reentry tachycardia (AVNRT). ⋯ All these promise the potential terminating effect on tachycardia. Propafenone has little effects on sinus node. Prolongation of sinus node recovery time (SNRT) to 3600 ms following drug administration was observed in only one patient who has a history of sinus bradycardia.
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Hunan Yi Ke Da Xue Xue Bao · Jan 1997
[Correlation between shape and direction of small articular surface in lower lumbar vertebrae and degeneration of intervertebral disc].
To assess the possible correlation between the shape and the direction of the small articular surface in the lower lumbar vertebrae and the degeneration of the intervertebral disc, we investigated with computed tomography (CT) and evaluated with statistics the small articular surface and the transverse interface-joint angle (TIFA) of the L4-5 and the L5-S1 in 152 cases who had normal or degenerative discs verified through CT, MRI or operation. The small articular surface was found arc in 69.1% of the L4-5 and in 23.0% of the L5-S1. ⋯ There was no correlation between the ratio of degeneration of the intervertebral disc at the L4-5 and the TIFA of the L4-5 and the L5-S1, but the ratio of degeneration of the intervertebral disc at the L5-S1 had postive correlation with the TIFA of the L4-5, negative correlation with the TIFA of the L5-S1, and particular correlation with the TIFA of the L5-S1 and L4-5. These results suggest that the shape and direction of the lower lumbar facet joint are related to the lumbar degeneration of intervertebral disc and the causes of degeneration at the L4-5 disc differ from those at the L5-S1 disc in biomechanics.