Biomedical subjects

D T Gilmour

Publications and source records attributed to D T Gilmour.

5 recordsLinked to original sources

PubMed2006

Rates of urinary tract injury from gynecologic surgery and the role of intraoperative cystoscopy.

OBJECTIVE: To estimate the rates of urinary tract injury after benign gynecologic surgery. To explore the role of routine intraoperative cystoscopy at benign gynecologic surgery. DATA SOURCES: We conducted a systematic MEDLINE search for urinary tract injuries at gynecologic surgery for the period from November 1998 to May 2004 and combined this with a previous systematic review performed in the same fashion for the period from January 1966 to October 1998. METHODS OF STUDY SELECTION: There were 47 studies that fit our inclusion criteria: 29 that did not use routine intraoperative cystoscopy, 17 that used routine intraoperative cystoscopy, and 1 that reported the frequency of urinary tract injury separately, with and without routine intraoperative cystoscopy. We determined the crude and fitted ureteric and bladder injury rates for each surgery type from the studies where routine intraoperative cystoscopy was not performed and then from the studies where routine intraoperative cystoscopy was performed. TABULATION, INTEGRATION, AND RESULTS: From studies without routine cystoscopy, combined ureter and bladder injury rates varied according to the complexity of the surgery, ranging from less than 1 injury per 1000 for subtotal hysterectomy with or without bilateral salpingo-oophorectomy to as many as 13 injuries per 1000 surgeries for laparoscopic hysterectomy with or without bilateral salpingo-oophorectomy and for other gynecologic and urogynecologic surgeries. Injury rates were higher when routine intraoperative cystoscopy was used, but the confidence intervals were wider. CONCLUSION: The reasons for higher injury detection rates when routine cystoscopy was performed are unclear. Further study is needed to identify the scenarios where routine cystoscopy is warranted after major gynecologic surgery.

Cystoscopy↗

PubMed2006

Laparoscopic versus open Burch colposuspension: a randomised controlled trial.

OBJECTIVE: To compare perioperative characteristics, short-term, and long-term outcomes for laparoscopic Burch colposuspension (LBC) and open Burch colposuspension (OBC) for the treatment of urinary stress incontinence. DESIGN: Randomised surgical trial with single blinding. SETTING: Three tertiary level teaching hospitals involving seven surgeons of varying skill levels. POPULATION: Two hundred women with urodynamic stress incontinence (USI). METHODS: The two groups were treated in identical fashion, except for the laparoscopic or open approach to surgery. Attempts were made to blind the subjects and the observers obtaining outcome data to treatment group. Analyses were adjusted for surgeon experience. MAIN OUTCOME MEASURES: Absence of USI 6 months following surgery, postoperative pain, time spent in hospital, and time to return to activities of normal daily living. RESULTS: There were no significant differences in objective and subjective measures of cure and in patient satisfaction at 6 months, 24 months, or 3-5 years of follow up between laparoscopic and open colposuspension groups. Laparoscopic colposuspension took longer time to perform (87 versus 42 minutes, P< 0.0001) but was associated with less blood loss (P = 0.03), less pain (P = 0.02), and quicker return to normal activities (P = 0.01). CONCLUSION: LBC has significant advantages over traditional OBC, without any apparent compromise in short-term and long-term outcomes. To compare perioperative characteristics, short-term, and long-term outcomes for laparoscopic Burch colposuspension (LBC) and open Burch colposuspension (OBC) for the treatment of urinary stress incontinence. Randomised surgical trial with single blinding. Three tertiary level teaching hospitals involving seven surgeons of varying skill levels. Two hundred women with urodynamic stress incontinence (USI). The two groups were treated in identical fashion, except for the laparoscopic or open approach to surgery. Attempts were made to blind the subjects and the observers obtaining outcome data to treatment group. Analyses were adjusted for surgeon experience. Absence of USI 6 months following surgery, postoperative pain, time spent in hospital, and time to return to activities of normal daily living. There were no significant differences in objective and subjective measures of cure and in patient satisfaction at 6 months, 24 months, or 3-5 years of follow up between laparoscopic and open colposuspension groups. Laparoscopic colposuspension took longer time to perform (87 versus 42 minutes, P < 0.0001) but was associated with less blood loss (P= 0.03), less pain (P= 0.02), and quicker return to normal activities (P= 0.01). LBC has significant advantages over traditional OBC, without any apparent compromise in short-term and long-term outcomes.

Female↗

PubMed2003

Trends in major risk factors for anal sphincter lacerations: a 10-year study.

OBJECTIVES: (1) To identify independent risk factors for anal sphincter laceration, (2) to determine the trend in rates of anal sphincter laceration over a 10-year period, and (3) to examine the impact of temporal trends in risk factors on anal sphincter laceration rates. METHODS: Population-based data were obtained from the Nova Scotia Atlee Perinatal Database, on 91 206 women who had a singleton vaginal live birth > or =500 g for the years 1988 to 1997. Risk factors for anal sphincter laceration were identified using stepwise logistic regression. A multivariate model was used to study temporal changes in laceration rates after controlling for changes in parity, episiotomy rates, operative vaginal deliveries, birth weight, prolonged second stage of labour, and other determinants. RESULTS: Nulliparity (relative risk [RR] = 6.97), occiput posterior position (RR = 2.44), non-vertex presentations (RR = 2.27), second stage > or =120 min (RR range = 1.47-2.02), delivery by an obstetrician (RR = 1.30), and birth weight > or =3000 g (RR range = 1.43-6.63) increased the risk of laceration. Instrument-assisted delivery involved risks that ranged from a 2-fold increase for a vacuum-assisted delivery (RR = 2.15) to a greater than 5-fold increase for a forceps delivery after an unsuccessful vacuum extraction (RR = 5.69). Episiotomy, particularly midline incisions, increased the risk of laceration (RR = 2.57). The risk of a sphincter laceration increased 2-fold from 1988 to 1997, despite controlling for risk factors. CONCLUSIONS: Sufficient evidence exists about the risk factors for anal sphincter laceration to permit modification of management of labour and delivery to minimize the risk of anal sphincter laceration. Increased awareness of the clinical importance of recognition and repair of anal sphincter laceration may explain the rising incidence.

Adult↗

PubMed1999

Lower urinary tract injury during gynecologic surgery and its detection by intraoperative cystoscopy.

OBJECTIVE: To review the frequency of lower urinary tract injuries after major gynecologic surgery and the role of routine intraoperative cystoscopy during major gynecologic surgery in the detection of lower urinary tract injuries. DATA SOURCES: We combined a MEDLINE search for reports from 1966 to October 1998, using the terms "urinary tract injury," "ureter/ureteric/ureteral obstruction/fistula/injury," "bladder fistula/injury," and "vesico-vaginal fistula," with a second search for all reports of gynecologic surgical procedures. Additional references were obtained from relevant articles and review articles. METHODS OF STUDY SELECTION: Included were all English language articles on the frequency of unintentional urinary tract injuries identified during or after benign gynecologic surgery. There were 22 reports on the frequency of lower urinary tract injuries after gynecologic surgery and eight on the use of routine cystoscopy during gynecologic surgery to diagnose unsuspected injuries. TABULATION, INTEGRATION, AND RESULTS: In the reports of studies not involving routine cystoscopy, the frequency of ureteral injury varied from 0 to 14.6 injuries per 1000 operations, with an overall frequency of 1.6 per 1000. The frequency of bladder injury varied from 0.2 to 19.5 per 1000, with an overall frequency of 2.6 per 1000. Only 11.5% of ureteral injuries and 51.6% of bladder injuries were identified and managed intraoperatively. In the reports of studies involving routine cystoscopy, the frequency of ureteral injury varied from 0 to 26.8 per 1000, with an overall frequency of 6.2 per 1000. The frequency of bladder injury varied from 0 to 29.2 per 1000, with an overall frequency of 10.4 per 1000. Up to 90% of unsuspected ureteral injuries and 85% of unsuspected bladder injuries were identified with the use of cystoscopy and were managed successfully intraoperatively. In 69% of the unsuspected ureteral and bladder injuries, the intraoperative management consisted of removing and replacing sutures or repairing unintentional cystotomies. CONCLUSION: Use of routine intraoperative cystoscopy during major gynecologic and urogynecologic surgery might prevent sequelae from lower urinary tract injuries.

Cystoscopy↗

PubMed1998

Mice deficient for the secreted glycoprotein SPARC/osteonectin/BM40 develop normally but show severe age-onset cataract formation and disruption of the lens.

SPARC (secreted protein acidic and rich in cysteine, also known as osteonectin/BM40) is a secreted Ca2+-binding glycoprotein that interacts with a range of extracellular matrix molecules, including collagen IV. It is widely expressed during embryogenesis, and in vitro studies have suggested roles in the regulation of cell adhesion and proliferation, and in the modulation of cytokine activity. In order to analyse the function of this protein in vivo, the endogenous Sparc locus was disrupted by homologous recombination in murine embryonic stem cells. SPARC-deficient mice (Sparctm1Cam) appear normal and fertile until around 6 months of age, when they develop severe eye pathology characterized by cataract formation and rupture of the lens capsule. The first sign of lens pathology occurs in the equatorial bow region where vacuoles gradually form within differentiating epithelial cells and fibre cells. The lens capsule, however, shows no qualitative changes in the major basal lamina proteins laminin, collagen IV, perlecan or entactin. These mice are an excellent resource for further studies on how SPARC affects cell behaviour in vivo.

Age of Onset↗