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C Bosatra

Publications and source records attributed to C Bosatra.

3 recordsLinked to original sources
PubMed1994

[Percutaneous approach in the use of subclavian vein in pacemaker implantation].

BACKGROUND AND METHODS: We analyzed the complications of 1729 pacemakers implants (from October 1980 to December 1992) divided according to the way of leads insertion. The approaches from the subclavian vein was used in 1220 cases, the cephalic vein was used in 431 implants and the external jugular vein in 78. RESULTS: Major complications were: pocket bleeding (108 cases), pocket erosion (15 cases), infection (2 cases), lead fracture (5 cases), lead dislodgement (20 cases), pneumothorax (4 cases, only for subclavian puncture). There were no significative differences in the complications between the three approaches. On the other hand, the subclavian puncture reduces the time of the procedure, is less traumatic and allows to insert and to position several leads. CONCLUSIONS: We suggest to use the subclavian vein approach as first choice to implant one or more leads, being this way safe and fast.

Evaluation Studies as Topic↗
PubMed1991

[Hemodynamic benefits of sequential atrioventricular pacing].

The purpose of this study was to evaluate the hemodynamic benefits of atrioventricular (A-V) sequential pacing. 30 pts implanted with DDD pacemakers underwent M-mode, B-mode and Doppler echocardiography. In each patient, left ventricular (LV) stroke volume was assessed by measuring the time-velocity integral of mitral inflow in the following modes and rates: VOO at 70 ppm or at the minimum stimulation rate and at 120 ppm; DOO at the same rates with different A-V delay (100, 150, 200, 250 and, whenever possible, 300 msec). The increase in stroke volume obtained with dual chamber pacing at the optimal A-V delay was 45 +/- 25% at 75 ppm and 29 +/- 14% at 120 ppm (p less than 0.05 75 vs 120 ppm). This increase was significantly higher in pts with than in pts without LV hypertrophy (respectively: 51.9 +/- 20.4 vs 36.9 +/- 20.8% at 75 ppm, p less than 0.05 and 33 +/- 13.4 vs 25.4 +/- 14.5% at 120 ppm, p = 0.08). Concerning the A-V delay, we noted that at 75 ppm stroke volume was significantly higher in DOO than in VOO with any A-V delay ranging +/- 100 msec from the optimal one; at 120 ppm the hemodynamic benefit of DOO pacing was observed only when the programmed A-V delay was the optimal one or very near to it. In conclusion, atrio-ventricular sequential pacing allows a significant increase in LV stroke volume over single chamber ventricular pacing both at 75 and 120 ppm. Programming the optimal A-V delay is absolutely necessary to obtain this hemodynamic benefit at the higher stimulation rate.

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