Biomedical subjects

B So

Publications and source records attributed to B So.

3 recordsLinked to original sources

PubMed2001

Radiologic placement of central venous catheters: rates of success and immediate complications in 3412 cases.

OBJECTIVE: To determine the success and immediate complication rates associated with 3412 central venous catheter placements performed in an interventional radiology suite. METHODS: Success and immediate complication rates were prospectively recorded for 3412 consecutive patients who had central venous catheters radiologically placed at a tertiary care centre between July 1993 and October 2000. The indication for placement and the insertion site were also recorded. RESULTS: The most common indication for both short- and long-term venous access was hemodialysis, and the right internal jugular vein was the most common site for catheter insertion. Placement was successful for 98.8% of tunnelled lines and 99.3% of temporary catheters. The rate for immediate complications (including pneumothorax, air emboli, bleeding and arterial puncture) for tunnelled catheter placements was 3.8% and for temporary catheter placements was 1.6%; no major complications were documented. CONCLUSION: Our results lend further evidence to the claim that the success and immediate complication rates of radiologically placed central venous catheters compare favourably with blind placement and surgical placement of central venous catheters.

Adolescent↗

PubMed2000

Extraprostatic biopsy improves the staging of localized prostate cancer.

OBJECTIVE: To evaluate the role and safety of biopsy of the seminal vesicles and neurovascular bundles in determining the pathologic stage of prostatic carcinoma. METHODS: Eighty-one consecutive patients were enrolled in a comprehensive cryosurgical biopsy protocol that included sextant intraprostatic plus extraprostatic biopsy. The pathologic stage, determined after biopsy, was compared with the clinical stage, determined by digital rectal examination (DRE) and transrectal ultrasonographic (TRUS) evaluation. As well, complication rates for these patients were compared with rates for a separate group that underwent sextant intraprostatic biopsy alone. RESULTS: Of the 81 patients, 61 (75%) were confirmed to have cancer by biopsy. None of these patients was considered to have extraprostatic extension by clinical evaluation (DRE and TRUS), but 16 of 61 (26%) were identified to have extraprostatic cancer in the seminal vesicles (8 of 61, 13%) or in the neurovascular bundles (8 of 61, 13%) by extraprostatic biopsy. There was no significant difference in the complication rates between sextant intraprostatic biopsy and sextant intraprostatic plus extraprostatic biopsy (p>0.97). CONCLUSIONS: Extraprostatic biopsy identifies extension of carcinoma in a large proportion of patients in whom clinical evaluation by DRE and TRUS indicates organ-confined disease. Extraprostatic biopsy is therefore warranted as routine evaluation before surgery in order to correctly stage prostatic carcinoma and select appropriate therapy.

Adult↗

PubMed1996

Fluoroscopically guided percutaneous gastrostomy: current status.

The authors review the current status of fluoroscopically guided percutaneous gastrostomy (FGPG). The indications for this procedure have been expanded since the technique was first described over a decade ago. Ther are few contraindications to FGPG, although modifications are required in some situations. The procedure involves placing a feeding tube into the stomach by a modified Seldinger technique. According to the literature, most interventionalists do not routinely employ gastropexy. The insertion of gastrojejunostomy feeding tubes rather than gastrostomy feeding tubes to reduce gastroesophageal reflux remains controversial. Complications after FGPG are rare. Feeding tubes inserted in this manner allow satisfactory establishment and maintenance of enteral feeding. The technique compares favourably with other methods of inserting gastrostomy tubes.

Adult↗