PubMed Health⌕ Search

Biomedical subjects

R V Kidd

Publications and source records attributed to R V Kidd.

5 recordsLinked to original sources

Ureteral and renal vein perforation with placement into the renal vein as a complication of the pigtail ureteral stent.

A 43-year-old woman with recurrent colon carcinoma presented with bilateral pelvioureteral obstruction. After a 6F ureteral catheter had been in place for 4 days the left ureter was perforated near the ureteropelvic junction, while an attempt was made to insert a 7F Cook indwelling pigtail ureteral stent. The errant stent was allowed to remain in its extraureteral locale until urinary drainage was established. To our surprise the stent had been placed into the renal vein, after exiting the ureter 2 cm. inferiorly. There was excellent tamponade. When the large stent was removed severe bleeding ensued that was controlled by ligatures. Methods to prevent perforation are discussed. Should perforation of these stents occur in the proximal ureter or renal pelvis it would seem judicious to leave these in place rather than perform any further endoscopic manipulation before surgical inspection.

Adult↗

Differences in word association commonality of schizophrenics: the self-editing-deficit model vs. the partial-collapse-of-response-hierarchy hypothesis.

Schizophrenics matched by pairs with 26 neurotics were found to be no different in commonality scores under free association conditions on steep-slope words from Moran's (1966) word list equated for "idiodynamic set pull." Schizophrenics scored significantly lower (p less than 0.05) in commonality on flat-slope words, where steep-slope and flat-slope refer respectively to stimulus words with one or several commonly occurring associates. Matched by pairs with 23 "normal" controls, schizophrenics scored significantly lower in commonality on both steep-slope and flat-slope words under free association conditions. These findings are contrary to the prediction for the two-stage, self-editing-deficit model (Lisman & Cohen, 1972) and are consistent with the one-stage, partial-collapse-of-hierarchy hypothesis (Broen & Storms, 1966). Other results (e.g., schizophrenics obtained significantly lower commonality for Concept-referent, but not for Dimension-referent or Object-referent, steep-slope stimulus words) suggest that these models might be modified so as to take into account the idiodynamic set pull of stimulus words.

Adult↗