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K Lindqvist

Publications and source records attributed to K Lindqvist.

32 records · Page 2Linked to original sources
PubMed1997

Extracorporeal shock wave lithotripsy for the treatment of renal stones. Treatment policy is as important for success as type of lithotriptor and patient selection.

OBJECTIVE: To compare the efficiency of different machines for extracorporeal shock wave lithotripsy (ESWL) of renal stones and to analyze treatment strategies and stone characteristics as determinants of treatment failure. DESIGN: Prospective cohort study. SETTING: Nationwide study in Sweden. All 11 hospitals in Sweden using 1 of 7 lithotriptors in 1991 were included. PATIENTS: The study cohort comprised 1171 (97.6%) of the 1200 patients in Sweden who underwent ESWL for the first time because of renal stones between February 18, 1991, and December 31, 1991. MAIN OUTCOME MEASURE: Treatment failure, defined as 1 or more residual renal stone fragments larger than 4 mm 1 of 3 months after the end of treatment, was analyzed after ESWL monotherapy and after ESWL plus auxiliary treatment using a multivariate analysis. RESULTS: Treatment failure varied by center from 12% to 48% (mean, 24%) after ESWL monotherapy and from 4% to 40% (mean, 18%) after ESWL plus auxiliary procedures. After adjusting for differences in the patient mix, the risk of treatment failure, measured as the odds ratio, varied by center almost 7-fold after ESWL monotherapy and 20-fold after ESWL plus auxiliary treatment. Substantial differences also existed for the same equipment used at different centers. The risk of treatment failure increased rapidly for renal stones larger than 15 mm, and it was at least 2-fold higher in patients who had multiple stones or a cavity. CONCLUSIONS: When ESWL is used for the treatment of renal stones, the treatment policy has as great an effect on the success rate and need for auxiliary treatment as optimal equipment and proper patient selection. Meaningful comparisons of different lithotriptors require multivariate analyses with adjustment for patient selection.

Female↗
PubMed1996

Ten years of experiences from a participatory community-based injury prevention program in Motala, Sweden.

Exploratory studies in the Scandinavian countries have suggested that the national cost of unintentional injuries is equal to 4% of the Gross National Product (GNP). One way for Swedish society to handle this situation has been through community-based injury prevention programs. This study used action research methods to supplement the understanding of the community development for injury prevention. The aim of this paper is to present the participative model used in one of the first of these programs, the Motala Injury Prevention Program, and lessons learned from the first 10 years of its operation. The program 'succeeded' in 1993, when Motala Municipality formed a regular Safety Board chaired by the Municipal Commissioner. These are five main messages from the initial phases of the program: a community-based injury prevention program has to be regarded as a long-term project; preferably over more than a 10 year period, economic calculations are important in the community analysis phase of the program, inter-linkage between community organizations is essential in the design phase, the hand-over from the initial program developers to practitioners is critical in the implementation phase, it is important to maintain a high-quality data collection routine even after the conclusion of the community analysis phase of the program. These observations have a potential to be valid at least for Northern Europe, which, by comparison with other parts of the world is a relatively homogenous area with regard to external causes of injuries. Regarding other communities, there are known differences in injury rates and community organization.

Adolescent↗
PubMed1993

Norfloxacin as prophylaxis against urethral strictures following transurethral resection of the prostate: an open, prospective, randomized study.

An open, prospective, randomized study was performed to investigate the effect of norfloxacin prophylaxis on stricture formation and operative outcome after transurethral resection of the prostate. After resection, the 359 patients studied were randomly divided into 2 groups: 1) those given norfloxacin as prophylaxis for 15 days following removal of the catheter (norfloxacin group) and 2) those given no antimicrobial prophylaxis during the same period (control group). Of the patients 94 were excluded. At followup 6 to 12 months postoperatively, the number of strictures in the anterior urethra was 2 of 135 in the norfloxacin group and 22 of 130 in the control group (p < 0.01). Strictures in the bladder neck developed in 3 of 135 and 4 of 130 patients, respectively (not significant). As a consequence of a lower structure incidence in the anterior urethra in the norfloxacin group, fewer patients in that group were dissatisfied with the operative outcome. The results suggest that norfloxacin provides effective prophylaxis against stricture formation after transurethral resection of the prostate.

Aged↗
PubMed1992

Suprapubic catheter following transurethral resection of the prostate: a way to decrease the number of urethral strictures and improve the outcome of operations.

A prospective, randomized study was done to investigate the role of transurethral catheters in stricture formation after transurethral resection of the prostate. The operative outcome after using transurethral catheters made of 2 different materials compared with suprapubic catheters was also investigated. We studied 344 patients who underwent transurethral resection of the prostate. After resection the patients were randomly divided into 3 groups: 1) those drained by a transurethral polytetrafluoroethylene (Teflon)-coated latex catheter, 2) those drained by a transurethral polyvinylchloride catheter and 3) those drained by a suprapubic polyvinylchloride catheter. At 6 to 24 months the numbers of strictures in the anterior urethra were 10 of 102 and 11 of 102 in the transurethral drainage groups, respectively. The corresponding number of strictures in the suprapubic drainage group was 1 of 94 (p less than 0.01). Strictures in the bladder neck had developed in 5 of 102, 3 of 103 and 3 of 94 patients, respectively (not significant). As a consequence of a lower incidence of strictures in the anterior urethra in the suprapubic drainage group, more patients in that group were satisfied with the results of the operation.

Drainage↗
PubMed1989

Urethral strictures following transurethral resection of the prostate. The role of the catheter.

Urethral stricture is the most common late complication of transurethral prostatectomy (TURP). The cause is unknown. A prospective, randomised study was undertaken to investigate the role of the transurethral catheter in stricture formation. A total of 205 patients subjected to TURP were studied. Following resection, they were randomly divided into 2 groups: those drained by a transurethral siliconised latex catheter and those drained by a suprapubic siliconised latex catheter. At follow-up, 6 to 24 months later, 17% of the patients in the transurethral group had developed urethral stricture; the corresponding figure in the suprapubic group was 4%. As a consequence of the higher incidence of stricture in the transurethrally drained group, more patients in that group were dissatisfied with the results of the operation. It was concluded that the post-operative transurethral catheter was an important factor in stricture formation following TURP and that transurethral drainage with a siliconised latex catheter resulted in a higher incidence of stricture. This led to a greater number of patients being dissatisfied with the results of the operation, but the catheter did not affect the results in any other way.

Aged↗