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Biomedical subjects

C S Soo

Publications and source records attributed to C S Soo.

40 records · Page 3Linked to original sources
PubMed1981

Complications of coil embolization: prevention and management.

From 1975 to 1980, 1,200 steel coils of three different designs were used for vascular occlusion. There were eight significant complications: Two coils were lost and retrieved, one coil was lost and remains in the pulmonary artery, four coils were misplaced to undesired sites, and one coil was fragmented and displaced during surgery. The management and prevention of these complications are described.

Embolization, Therapeutic↗
PubMedDate not supplied

Doppler-echocardiographic assessment of Carbomedics prosthetic values in the mitral position.

We prospectively studied 37 consecutive patients implanted with the Carbomedics prosthetic heart value in the mitral position (without clinical evidence of prosthetic valve dysfunction) with two-dimensional and Doppler echocardiography. The peak mitral prosthetic gradient ranged from 4.60 to 14.63 (mean 8.97 +/- 2.29) mm Hg; mean mitral prosthetic gradient ranged from 1.67 to 6.18 (mean 3.24 +/- 0.95) mm Hg; pressure half-time derived mitral valve area ranged from 1.67 to 5.30 (mean 2.70 +/- 0.80) cm2. These values compare favorably with that of another bileaflet valve (i.e., the St. Jude Medical valve). There was a wide overlap in peak and mean transmitral gradients, even with the valves of the same size, with a significant but weak inverse relationship between peak mitral gradients and valve size (p = 0.03, r = -0.36). The performance index showed a smaller range of values, again with a significant but weak inverse relationship with valve size (p = 0.001, r = -0.54). The inverse relationship between valve size and peak mitral gradient and performance index should be borne in mind when analyzing Doppler hemodynamic data.

Echocardiography↗