Publications by authors named "Gina Lockwood"

Prenatal diagnosis of left multicystic dysplastic kidney (MCDK) and ureterocele was made in a male fetus at 24-week gestation. The initial postnatal course was uneventful. At 4 weeks of age, he developed urosepsis and respiratory distress.

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Article Synopsis
  • The study investigates the relationship between ultrasound measurements of pyramidal thickness (PT) and parenchymal thickness (ParT) in children with high-grade unilateral hydronephrosis and their differential renal function (DRF) to potentially reduce the necessity for expensive and stressful MAG3 scans.
  • Researchers analyzed data from 71 children, focusing on various ratios of renal measurements to better predict the need for surgical interventions, such as pyeloplasty.
  • The findings suggest that certain ultrasound measurements correlate well with DRF, indicating that they could be used to guide decisions about further imaging and treatment for children at risk of impaired kidney function.
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Background: Patients with high grade hydronephrosis (HN) and non-obstructive drainage on mercaptoacetyltriglycine (MAG-3) diuretic renography (renal scans) can pose a dilemma for clinicians. Some patients may progress and require pyeloplasty; however, more clarity is needed on outcomes among these patients.

Objective: Our primary objective was to predict which patients with high-grade HN and non-obstructive renal scan, (defined as T ½ time <20 min) would experience resolution of HN.

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Purpose: Vesicoureteral reflux (VUR) grade has been used as a primary factor in assessing a child's risk of clinical outcomes. Unfortunately, grade has poor inter-observer reliability. We hypothesized that more objective and reliable VCUG parameters including the distal ureteral diameter ratio (UDR) and volume at onset of VUR (Vol) may either augment or replace the current grading system to provide more reliable prediction of clinical outcomes.

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Purpose: Cancer treatment can have consequences for individuals which may have profound impact on daily living. Accessing assistance can be problematic. This study explores associations between income and concerns, help-seeking, and unmet needs related to physical changes following cancer treatment.

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The number of cancer survivors in Canada has reached 1.5 million and is expected to grow. It is important to understand cancer survivors' perspectives about the challenges they face after treatment is completed.

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Objectives: The aim of the present study was to report clinical findings, surgical complications and outcomes for previously hoarded cats treated surgically for otitis media-interna (OMI) and to investigate the risk factors for complications and poor outcomes.

Methods: A retrospective study was conducted of 58 cats from an institutional hoarding environment that underwent ventral bulla osteotomy (VBO).

Results: Inappetence was uncommon at presentation (9/58, 16%) compared with pruritus/alopecia (50%), nasopharyngeal signs (45%), otitis externa (OE) (79%) and otitis interna (OI) (ataxia ± head tilt/head excursions) in 40%.

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In Canada, the number of cancer survivors continues to increase. It is important to understand what continues to present difficulties after the completion of treatment from their perspectives. Various factors may present barriers to accessing help for the challenges they experience following treatment.

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Background: Decisional conflict surrounding the topic of circumcision in the newborn male is assumed in some parents but has not been quantified or qualified. It is known that parents often base their decision on cultural and social factors and that physician discussions do affect ultimate decision-making. Information on parents' decision-making surrounding newborn circumcision and ways to mitigate conflict or uncertainty around the decision-making process is needed to better counsel them appropriately.

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Introduction: We evaluated whether antimicrobial prophylaxis decreases rates of post-procedural infection (urinary tract infection or sepsis) after simple cystourethroscopy for patients with specific comorbidities.

Methods: We utilized Epic® reporting software to conduct a retrospective review of all simple cystourethroscopy procedures performed by providers in our urology department from August 4, 2014 to December 31, 2019. Data collected included patient comorbidities, antimicrobial prophylaxis administration and incidence of post-procedural infection.

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Objective: Globally, the number of older adults surviving cancer is anticipated to grow rapidly over the next decades. Cancer and its treatment can leave survivors with a myriad of challenges including physical changes which impact independence and quality of life. This project explored the relationship of income level with concerns and help-seeking for physical changes following treatment in older Canadian survivors of cancer.

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Introduction: The degree of chordee associated with hypospadias impacts operative management. Unfortunately, poor inter-observer reliability in assessing chordee by multiple methods in vitro has been demonstrated. This variability may be related to the fact that chordee is not a discrete angle, but rather an arc-like curvature similar to that of a banana.

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Introduction: Few pediatric urologists believe patients require a majority of the doses of opioids prescribed to them postoperatively. Seeking a better understanding of postoperative pain and analgesia in pediatric urology patients may help reduce opioid over prescription while still adequately managing postoperative pain.

Objective: We sought to better understand: 1) the postoperative pain levels experienced by pediatric urology patients, 2) the factors that correlate with postoperative pain and number of opioids consumed following pediatric urologic procedures, and 3) the patients who do not require opioids after surgery.

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Introduction: Prior studies with postnatal ultrasound measurements of the medullary pyramid thickness (PT) demonstrate a PT < 3 mm as a significant risk factor for the diagnosis of UPJ obstruction and pyeloplasty. These studies used the postnatal ultrasound demonstrating the largest degree of hydronephrosis. Since early identification of children at increased risk of obstruction and pyeloplasty would be clinically useful, we reviewed the PT on the first and second postnatal ultrasound in infants with congenital hydronephrosis.

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Objective: To evaluate possible risk factors for complications following primary hypospadias repair relative to factors associated with timing of hypospadias repair in terms of case order, morning or afternoon scheduling, perioperative delays, and surgeon's daily work schedule as well as individual operative techniques.

Methods: We retrospectively reviewed charts of 422 boys undergoing primary hypospadias repair with a sutured urethroplasty by 1 of 3 surgeons over a 10-year period and the surgeon's daily schedule.

Results: The median age and IQR of the patients at time of operation was 0.

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Introduction: A novel device, the cystomanometer, was developed for home bladder pressure monitoring in patients with neurogenic bladder.

Objective: To report initial experience and proof of concept with home use of the cystomanometer.

Study Design: Patients were asked to use the device twice daily for two weeks.

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Background: Prenatal hydronephrosis (PNH) is one of the most common congenital anomalies and can increase the risk of developing a urinary tract infection (UTI) in the first two years of life. Continuous antibiotic prophylaxis (CAP) has been recommended empirically to prevent UTI in children with PNH, but its use has been controversial.

Objective: We describe the incidence of UTI in children with isolated PNH of the renal pelvis without ureteral dilation.

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Introduction: Preparing patients for surgery is a task healthcare organizations strive to optimize. Electronic messaging (EM) provides an opportunity for streamlining components of this arduous process. Our study aims to evaluate our early experience in utilizing EM to provide preoperative information to pediatric urology patients.

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Purpose: The number of older cancer survivors is growing rapidly and expected to double through the next decade. Survivors can face challenges from treatment as well as other co-morbid conditions which may influence quality of living and generate distress. Understanding more about factors influencing whether older cancer survivors receive the help they desire is important for cancer program planning.

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Objectives: Circumcision of newborn males is left to parental preference, as medical necessity has not been demonstrated. For medical providers seeking to help parents make decisions and provide informed consent, there is little information regarding how parents gather and process information about circumcision. This study aimed to characterize the comprehensive range of parental attitudes, gaps in knowledge, and decision-making regarding circumcision.

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Background: Prenatal hydronephrosis is one of the most common anomalies detected on prenatal ultrasonography. Patients with prenatal hydronephrosis and ureteral dilation are at increased risk of urinary tract infection (UTI) and continuous antibiotic prophylaxis (CAP) is recommended. However, current guidelines do not define the minimum ureteral diameter that would be considered a dilated ureter in these patients.

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The objective of this study was to explore the relationship among income and emotional/practical concerns, help-seeking and unmet needs for cancer survivors aged 18 to 64 years one to three years after treatment. A cross-sectional survey was mailed in 2016 to 40,790 survivors randomly selected from 10 Canadian provincial cancer registries. Thirty-three percent responded.

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Introduction: Current grading systems for hydronephrosis include a subjective determination of parenchymal 'thickness' and suffer from poor reliability. Use of more objective ultrasonographic measurements including medullary pyramidal thickness (PT) may be useful in augmenting current grading systems by decreasing subjectivity and enhancing prognostic ability.

Objective: To evaluate the utility of PT measurements in patients with SFU grades 3 and 4 hydronephrosis, we assessed the: 1) the inter-rater reliability of PT measurements, 2) the correlation between relative renal function on nuclear renal scan and PT, and 3) the pyeloplasty predictive ability of PT alone and in combination with SFU grade and/or other sonographic measurements in multivariate statistical models.

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