Private groundwater contamination and risk management: A comparative scoping review of similarities, drivers and challenges across two socio-economically developed regions

Consolidation of multi-domain risk management research is essential for strategies facilitating the concerted government (educational) and population-level (behavioural) actions required to reduce microbial private groundwater contamination. However, few studies to date have synthesised this literature or sought to ascertain the causal generality and extent of supply contamination and preventive responses. In light of the Republic of Ireland (ROI) and Ontario's high reliance and research focus on private wells and consequent utility for empirical comparison, a scoping review of pertinent literature (1990-2022) from both regions was undertaken. The SPICE (Setting, Perspective, Intervention, Comparison, Evaluation) method was employed to inform literature searches, with Scopus and Web of Science selected as primary databases for article identification. The review identified 65 relevant articles (Ontario = 34, ROI = 31), with those investigating well user actions (n = 22) and groundwater quality (n = 28) the most frequent. A markedly higher pooled proportion of private supplies in the ROI exhibited microbial contamination (38.3 % vs. 4.1 %), despite interregional similarities in contamination drivers (e.g., weather, physical supply characteristics). While Ontarian well users demonstrated higher rates of historical (≥ 1) and annual well testing (90.6 % vs. 71.1 %; 39.1 % vs. 8.6 %) and higher rates of historical well treatment (42.3 % vs. 24.3 %), interregional levels of general supply knowledge were analogous (70.7 % vs. 71.0 %). Financial cost, organoleptic properties and residence on property during supply construction emerged as predictors of cognition and behaviour in both regions. Review findings suggest broad interregional similarities in drivers of supply contamination and individual-level risk mitigation, indicating that divergence in contamination rates may be attributable to policy discrepancies - particularly well testing incentivisation. The paucity of identified intervention-oriented studies further highlights the importance of renewed research and policy agendas for improved, targeted well user outreach and incentivised, convenience-based services promoting routine supply maintenance.

The myometrial-cervical ratio: Can a simple sonographic measurement improve diagnosis of adenomyosis in a regional setting?

Introduction

Adenomyosis is histologically defined by the presence of endometrial glands and stroma in the myometrium. Ultrasound findings of adenomyosis are being redefined to better diagnose adenomyosis pre-operatively.

Methods

A single-centre retrospective study was performed at a regional hospital. The myometrial-cervical ratio was calculated on pre-operative ultrasounds, and histopathology reviewed for each case. Logistic regression was used to estimate the association between the myometrial-cervical ratio and adenomyosis confirmed on histopathology, and the area under the receiver operating characteristic curve was calculated. Comparisons were performed based on the presence of fibroids on ultrasound.

Results

Complete data were available for 136 benign hysterectomies between 1 January 2015 and 31 December 2020. When the myometrial-cervical ratio was treated as a continuous variable in a logistic regression of adenomyosis on histopathology, there was no statistical evidence (χ2(1) < 0.01, p = 0.98) of an association. When cases including fibroids in the myometrial-cervical ratio were excluded, there was a non-significant association between myometrial-cervical ratio and adenomyosis on histopathology (odds ratio = 3.435, 95% confidence interval = 0.964, 12.235; χ2(1) = 3.62, p = 0.057); area under the receiver operating characteristic = 0.637 (95% confidence interval = 0.504, 0.770). The optimal myometrial-cervical ratio cutpoint was 1.875 (95% confidence interval = 1.698, 2.051), which achieved 71.43% sensitivity and 60.00% specificity. There was strong statistical evidence (χ2(1) = 9.02, p = 0.003) that the myometrial-cervical ratio outperformed standard pre-operative ultrasound identification of adenomyosis.

Conclusion

While accuracy remains suboptimal, the myometrial-cervical ratio outperformed standard ultrasound diagnostic features of adenomyosis in a regional setting. The myometrial-cervical ratio may offer a simple imaging measurement for adenomyosis in inexperienced hands when fibroids are absent.

The relationship between sleep disturbances and endometriosis: A systematic review

OBJECTIVE

Endometriosis is associated with a range of symptoms that can negatively impact a person's quality of life. While pain and infertility have received at lot of attention, sleep disturbances in individuals with endometriosis has been overlooked in both clinical practice and research. Therefore, the primary aim of this systematic review was to gather evidence from the current literature to illustrate the association between sleep disturbances and endometriosis.

STUDY DESIGN

A literature search was conducted using three electronic databases (OVID EMBASE, MEDLINE, and Web of Science). Observational studies, published in English, that involved participants aged 18 years or older that compared sleep outcomes between endometriosis patients and those without a history of endometriosis were included. The quality of each study was assessed using the Joanna Briggs Institute critical appraisal tools.

RESULTS

Nine studies (six case-control and three cross-sectional) were included in this review; 7 with low risk of bias and 2 with moderate risk of bias. The studies demonstrated heterogeneity in the assessment of sleep disturbances. However, 7 studies reported a significant positive association between endometriosis and sleep disturbances. Moreover, this impact on sleep was further complicated by the complex interaction between pain, fatigue and quality of life.

CONCLUSION

Current studies suggest an association between sleep disturbances and endometriosis, which may provide a blueprint for future clinical recommendations to screen and treat sleep disturbances in individuals with endometriosis to improve their quality of life. Future studies should aim to standardise the methods of assessing sleep disturbances and explore potential contributing factors.

Telehealth for gynaecology outpatients during the COVID-19 pandemic: Patient and clinician experiences

Background

The COVID‐19 pandemic has necessitated alterations in provision of health care and how patients access it. Telehealth has replaced traditional face‐to‐face outpatient clinics in an unprecedented manner. This study aimed to assess overall patient and clinician satisfaction with telehealth consultations, to establish acceptability of telehealth during pandemic and non‐pandemic times, and document feedback.

Materials and Methods

A prospective observational study involving women presenting to a general gynaecology outpatient department was performed. Women who attended for consultation between 13 July and 4 September 2020 were invited to participate in a questionnaire following their telehealth appointment. Clinicians consulting in the outpatient department were invited to complete a questionnaire at the end of the eight‐week study period. Satisfaction, utility and acceptability data were obtained using visual analogue scales (VAS).

Results

Twenty‐six out of 56 (46.4%) clinicians and 124/870 (14.3%) patients completed the questionnaire. Patients who responded were older and more likely to have been born in Australia than women who did not (P = 0.0355 and P = 0.005, respectively). Overall patient satisfaction with telehealth was high (median VAS (interquartile range), 8.6 (5.6–9.8)). More women found telehealth to be acceptable during a pandemic than afterward (8.9 vs 6.6, P < 0.0001). Clinicians were less satisfied with telehealth than patients (7.1 vs 8.6, P = 0.02); however, most would be happy to continue using telehealth in non‐pandemic times (7.0 (6.2–9.8)).

Conclusion

Telehealth consultations allow provision of gynaecological care at a time when reducing risk of infection to patients and staff is paramount. Telehealth gynaecology consultations are efficient and convenient without significant detriment to patient or clinician satisfaction.

The use of the myometrial-cervical ratio in the ultrasound diagnosis of adenomyosis - A validation study

BACKGROUND

Adenomyosis is a benign disorder defined by ectopic endometrial glands within the uterine myometrium. A study by Mooney et al reported the myometrial-cervical ratio (MCR), a novel ultrasound measurement that was found to improve the preoperative diagnosis of adenomyosis.

AIMS

To validate the association between sonographic MCR and adenomyosis confirmed on histopathology in an independent patient group.

MATERIALS AND METHODS

Single-centre retrospective cohort study including women who underwent hysterectomy between 1 January 2016 and 31 December 2018 for a benign, non-obstetric indication with an ultrasound at the study centre prior to surgery. Clinical details and histopathology were extracted. Ultrasound images were reviewed by a gynaecology ultrasound subspecialist blinded to histological findings.

RESULTS

Eight hundred eighty-seven patients underwent hysterectomy in the study period for eligible indications; 317 had an ultrasound at the study centre and were included. There was no statistically significant association between the MCR and adenomyosis on histology when all patients were included; however, increased MCR was associated with adenomyosis when those with fibroids on ultrasound were excluded. The area under the receiver operating characteristic for this model was 0.614 (95% CI: 0.53 to 0.69). The optimal MCR cut-point in this subgroup was 1.79, which achieved 55.6% sensitivity and 62.8% specificity, with 58.5% correctly classified. There was no significant difference in MCR compared to traditional ultrasound markers of adenomyosis.

CONCLUSIONS

In a population undergoing hysterectomy for benign and non-obstetric indications, the MCR applied to preoperative ultrasound was only weakly associated with a histological diagnosis of adenomyosis.

Preoperative Imaging in Patients with Deep Infiltrating Endometriosis (DIE): An Important aid in Predicting Depth of Infiltration in Rectosigmoid Disease

STUDY OBJECTIVE

To determine the diagnostic accuracy of specialist transvaginal ultrasound (TVUS) and pelvic magnetic resonance imaging (MRI) modalities in predicting depth of deep infiltrating endometriosis (DIE) of the rectosigmoid by comparison with histological specimens obtained at surgery.

DESIGN

A retrospective analysis, which met the STARD (2015) guidelines for a diagnostic accuracy study.

SETTING

Tertiary teaching hospital.

PATIENTS

194 cases who underwent preoperative discussion at the Gynaecological Endosurgery Unit multidisciplinary meeting (MDM) between January 2012 and December 2019 were eligible for inclusion.

INTERVENTIONS

Retrospective assessment of the accuracy of TVUS and MRI in predicting histological depth of rectosigmoid DIE following operative management.

MEASUREMENTS AND MAIN RESULTS

135 surgeries were performed for DIE; 20 underwent a rectal shave, 14 had a disc/wedge resection, 38 an anterior/segmental resection, 63 had no rectosigmoid surgery. Of the 52 patients with full thickness rectal wall excision, all patients had at least one imaging modality available for review; 42 (81%) had both. At least one imaging modality was in agreement with histological depth in 48 (92%) cases (sensitivity 94%, specificity 50%, positive predictive values (PPV) 97.9%, negative predictive value (NPV) 25.0%; area under the receiver operating curves (AUROC) 0.720, 95%CI: 0.229, 1.000). When TVUS was assessed in isolation, the test remained sensitive for any rectal wall involvement (sensitivity 93.6%, specificity 50.0%, PPV 97.8%, NPV 25.0%; AUROC 0.718, 95%CI: 0.227, 1.000). When only MRI was assessed, the test demonstrated both high sensitivity and specificity for rectal wall disease (sensitivity 86.4%, specificity 100%, PPV 100%, NPV 14.2).

CONCLUSION

Specialised performed TVUS and MRI are accurate in predicting depth of disease in rectosigmoid endometriosis. These modalities were similar in their diagnostic performance at assessing depth of rectal wall involvement and their use is justified in the preoperative planning of these gynaecological surgeries.

Private groundwater management and risk awareness: A cross-sectional analysis of two age-related subsets in the Republic of Ireland

Risk communication represents the optimal instrument for decreasing the incidence of private groundwater contamination and associated waterborne illnesses. However, despite attempts to promote voluntary well maintenance in high groundwater-reliant regions such as the Republic of Ireland, awareness levels of supply status (e.g. structural integrity) have remained low. As investigations of supply awareness are often thematically narrow and homogeneous with respect to sub-population, revised analyses of awareness among both current and future supply owners (i.e. adults of typical well owner and student age) are necessary. Accordingly, the current study utilised a national survey of well users and an age-based comparison of supply awareness. Awareness was measured among 560 Irish private well users using a multi-domain scoring framework and analysed in conjunction with experiential variables including experience of extreme weather events and previous household infections, and perceived self-efficacy in maintaining supply. Respondents displayed a median overall awareness score of 66.7%, with supply owners (n = 399) and students (n = 161) exhibiting median scores of 75% and 58.3%. Awareness among both combined respondent subsets and well owners was significantly related to gender, well use factors and self-perceived behavioural efficacy while awareness among students was not correlated with any independent variable. Cluster analysis identified three distinct respondent groups characterised by awareness score and gender in both current and future well owner subsets. Male well owners and students displayed higher perceived self-efficacy irrespective of awareness score while female well owners that demonstrated high awareness were significantly more likely to report postgraduate educational (p < 0.001). Findings suggest that recent experience of extreme weather events does not significantly influence supply awareness and mirror previously identified knowledge differences between well owners and young adults. Age, gender, supply use and perceived self-efficacy emerge as recurring focal points and accordingly merit consideration from groundwater and health communication practitioners for future risk interventions.

Hysteroscopic management of retained products of conception: A systematic review

BACKGROUND

The management of retained products of conception (RPOC) is not well standardised due to a lack of evidence-based guidelines. Hysteroscopic resection has been proven to be safe and is hypothesised to have lower risk than dilation and curettage, but data comparing the two directly are limited.

AIM

The aim of this study is to evaluate the outcomes for hysteroscopic resection for the management of RPOC in comparison to current standard management techniques.

METHODS

A literature search was conducted in September 2019 using MEDLINE, Scopus, The Cochrane Library and Web of Science. The key search terms were 'hysteroscopy'/'hysteroscopic resection' and 'retained products of conception'/'RPOC'. Both prospective and retrospective studies were included. A total of 19 studies were included (n = 2314). Due to a critical risk of bias in all studies with a comparison arm, a meta-analysis was not performed. Meta-analysis techniques were still used to provide summary estimates for primary and secondary outcomes, including conception rate, time to conception, live birth rate, intrauterine adhesions (IUAs), surgical complications and future pregnancy complications.

RESULTS

The overall conception rate for hysteroscopic resection was 81.1% (live birth rate 87.3%) compared to 65.4% for non-hysteroscopic management (live birth rate 93.8%). After hysteroscopic resection the overall complication rate was 1.9% and the IUA rate was 6.8%.

CONCLUSIONS

Due to the poor quality and overall scarcity of comparative data, the question whether hysteroscopic resection is superior to traditional curettage for the management of RPOC remains unanswered. This review provides summary data, which will enable the design of adequately powered future studies.

The myometrial-cervical ratio (MCR): Assessing the diagnostic accuracy of a novel ultrasound measurement in the diagnosis of adenomyosis

BACKGROUND

Adenomyosis is histologically defined by the presence of endometrial glands and stroma in the myometrium. To date, there are no standardised ultrasound findings that reliably predict histological adenomyosis.

AIMS

This study aimed to determine the diagnostic accuracy of a novel sonographic measurement for adenomyosis, the myometrial-cervical ratio (MCR), when compared with histopathological diagnosis.

MATERIALS AND METHODS

A single-centre retrospective study was performed. The MCR was calculated from the pre-operative ultrasound, and histopathology reviewed for each case. Accuracy data were analysed in the form of 2 × 2 tables. The discriminative value of the MCR was summarised with a receiver operator characteristic (ROC) curve. Sub-analysis examined the impact of fibroids, hormonal suppression, menopausal status, parity and indication for surgery.

RESULTS

Between 1 January 2016 and 31 December 2018, 982 patients underwent hysterectomy for benign non-obstetric indication and adequate pre-operative ultrasound was available for 260. The MCR demonstrated limited diagnostic ability for adenomyosis (area under the receiver operating characteristic curve (AUROC) 0.58, 95% CI 0.51-0.65). However, when applied to cases with no uterine fibroid included in the MCR calculation (n = 133) there was a strong association between MCR and diagnosis of adenomyosis (odds ratio: 5.79, 95% CI: 2.15, 15.62, P = 0.001) with AUROC for this model 0.68 (95% CI: 0.59, 0.77). At an MCR cut-point of 1.74, sensitivity is 67.16% and specificity is 66.15%, with 66.67% of samples correctly classified.

CONCLUSIONS

While diagnostic accuracy was suboptimal, the MCR outperforms traditional ultrasound diagnostic features of adenomyosis. The MCR may offer a simple imaging measurement for adenomyosis.

Tubal interruption and subsequent surgery for pain after endometrial ablation: A retrospective cohort study

BACKGROUND

Endometrial ablation (EA) is an alternative to hysterectomy for abnormal uterine bleeding (AUB), with reduced recovery time and fewer operative risks. However, post-ablation pain may be associated with subsequent surgery, including hysterectomy. It is uncertain what factors affect surgery rates for post-ablation pain, particularly with respect to timing and technique of tubal interruption.

AIM

To evaluate the relationship between tubal interruption and post-ablation pain and subsequent surgery.

MATERIALS AND METHODS

We conducted a retrospective cohort study involving 324 patients at a Melbourne tertiary hospital from 2009 to 2020. The primary outcome was subsequent pelvic surgery for pain following EA.

RESULTS

Pain following EA was reported by 29.7% of patients, with 10.5% of patients undergoing subsequent surgery for pain. Patients with tubal interruption were more likely to undergo subsequent surgery for pain than those with no tubal interruption (odds ratio (OR): 3.49, 95% CI: 1.59-7.66; P = 0.002). Tubal ligation was strongly associated with subsequent surgery for pain (OR: 3.12, 95% CI: 1.48-6.57; P = 0.003). In contrast, those with salpingectomy did not have an increased risk of subsequent surgery for pain, compared to those with no tubal interruption (OR: 1.5; 95% CI 0.32-7.13). Pre-ablation pain (adjusted OR: 2.98, 95% CI: 1.37-6.48; P = 0.006) and previous caesarean section (OR: 2.66; 95% CI: 1.13-6.25; P = 0.025) were also associated with subsequent surgery for pain.

CONCLUSION

Our results suggest that tubal interruption, pre-ablation pain and previous caesarean section are associated with subsequent surgery for pain. These results can better inform preoperative counselling regarding the risk of subsequent surgery after EA.

Private groundwater contamination and extreme weather events: The role of demographics, experience and cognitive factors on risk perceptions of Irish private well users

Extreme weather events (EWEs) may significantly increase pathogenic contamination of private (unregulated) groundwater supplies. However, due to the paucity of protective guidance, private well users may be ill-equipped to undertake adaptive actions. With rising instances of waterborne illness documented in groundwater-dependent, developed regions such as the Republic of Ireland, a better understanding of well user risk perceptions pertaining to EWEs is required to establish appropriate educational interventions. To this end, the current study employed an online and physical questionnaire to identify current risk perceptions and correspondent predictors among Irish private well users concerning extreme weather. Respondents were elicited via purposive sampling, with 515 private well users elucidating perceived supply contamination risk in the wake of five EWEs between the years 2013-2018 including drought and pluvial flooding. A novel scoring protocol was devised to quantify overall risk perception (i.e. perceived likelihood, severity and consequences) of extreme weather impacts. Overall risk perception of EWEs was found to demonstrate a significant relationship with gender (p = 0.017) and event experience (p < 0.001), with female respondents and those reporting prior event experience exhibiting higher median risk perception scores. Risk perception was additionally mediated by perceived self-efficacy in undertaking supply maintenance (p = 0.001), as well users citing confidence in ability scored significantly lower than those citing no confidence. Two-step cluster analysis identified three distinct respondent subsets based on risk perception of EWEs (high, moderate and low perception), with female respondents and those with a third-level education significantly more likely to fall within the high perception cluster. Study findings affirm that certain demographic, experiential and cognitive factors exert a significant influence on private well user risk perceptions of EWE impacts and highlight potential focal points for future educational interventions seeking to reduce the risk of human infection associated with groundwater and extreme weather.

Introduction of the MyoSureLITE in an established outpatient hysteroscopy clinic

BACKGROUND

Endometrial polyps are a common cause of abnormal uterine bleeding. The MyoSureLITE intrauterine morcellation device is effective at resecting endometrial polyps; however, its use in the outpatient setting requires appraisal.

AIM

To assess the feasibility, utility, acceptability and costs associated with introduction of the MyoSureLITE into an established outpatient hysteroscopy (OPH) clinic.

MATERIAL AND METHODS

A prospective clinical database from a tertiary Melbourne hospital was analysed from 1 July 2015 to 30 June 2018. Three 12-month time periods were compared: pre-introduction and trial phase, early use, and established use of the MyoSureLITE. Wait times, patient acceptability, second OPH bookings and procedure costs were measured.

RESULTS

Eight hundred and seventy-one women underwent OPH during the study period, with 238 (27.3%) women presenting with endometrial polyp(s). At each timepoint, 78.5, 25 and 6.3% of women required rebooking for a subsequent hysteroscopy for pathology otherwise suitable for MyoSureLITE resection. Introduction of the MyoSureLITE avoided a subsequent procedure for 4, 60 and 69 women respectively for each year of use, with potentially reduced treatment costs for the institution. Median (IQR) wait time for definitive treatment of intrauterine pathology was 56 (24-84) days at time-period 1, decreasing to 0 (0-0) days during time-period 3, (P < 0.001); 87.6% would undergo OPH again.

CONCLUSIONS

Routine use of the MyoSureLITE is effective, feasible, and acceptable to women. Provision of this device in outpatient service allows a 'see-and-treat' model, saving theatre time and treatment costs, facilitating a more direct throughput from presentation to treatment.

Knowledge and behavioural interventions to reduce human health risk from private groundwater systems: A global review and pooled analysis based on development status

Groundwater contamination constitutes a significant health risk for private well users residing in rural areas. As the responsibility to safeguard rural private domestic groundwater typically rests with non-expert homeowners, interventions promoting risk mitigation and awareness represent the most viable means of preventing supply contamination. However, no global review or pooled analyses of these interventions has been undertaken to date. The current study sought to identify and quantify the performance of private well interventions from 1990 to 2018 via a global systematised review and pooled analysis. The PICO (Population-Intervention-Comparison-Outcome) approach was employed for literature identification. Relevant studies were statistically analysed across two quantitative outcome (performance) types, namely knowledge and behaviour, controlling for intervention characteristics and country development status. Mean behavioural and knowledge attainment across interventions was 53% and 48%, respectively, with interventions in economically developed regions exhibiting higher behavioural outcomes (56% vs. 45%) than those in developing regions. Geographically, interventions were located in southern or southeast Asia (n = 23), North America (n = 15), Central America (n = 1) and Africa (n = 1), with none identified in Australia/Oceania, Europe, or South America. Behavioural outcomes were significantly associated with presence of educational/research coordinator (p = 0.023), with these interventions attaining higher levels of efficacy (+74%) than those implemented by other coordinator types. Findings indicate that instructor-led, practical interventions allied with both large- and local-scale awareness-raising campaigns represent an optimum approach for future private well risk interventions. Subsequent adoption of such interventions may lead to increased levels of private well maintenance and provide a point of reference for myriad water and health communication contexts.

An oxygen-rich atmosphere or systemic fluoxetine extend the time to respiratory arrest in a rat model of obstructive apnea

Audiogenic seizure-prone mice can be protected from seizure-associated death by exposure to an oxygen atmosphere or treatment with selective serotonergic reuptake inhibitors (SSRIs). We have shown previously in a rat model that epileptic seizure activity can spread through brainstem areas to cause sufficient laryngospasm for obstructive apnea and that the period of seizure-associated obstructive apnea can last long enough for respiratory arrest to occur. We hypothesized that both the oxygen-rich atmosphere and SSRIs function by prolonging the time to respiratory arrest, thus ensuring that seizure activity stops before the point of respiratory arrest to allow recovery of respiratory function. To test this hypothesis, we evaluated each preventative treatment in a rat model of controlled airway occlusion where the times to respiratory arrest can be measured. Adult male Sprague Dawley rats (median age = 66 days) were studied in the absence of any seizure activity. By directly studying responses to controlled airway occlusion, rather than airway occlusion secondary to seizure activity, we could isolate the effects of manipulations that might prolong respiratory arrest from the effects of those manipulations on seizure intensity. All group sizes were ≥ 8 animals per group. We found that both oxygen exposure and fluoxetine significantly increased the time to respiratory arrest by up to 65% (p < .0001 for 5 min oxygen exposure; p = .031 for 25 mg/kg fluoxetine tested 60 min after injection) and, given that neither treatment has been shown to significantly alter seizure duration, these increases can account for the protection of either manipulation against death in sudden death models. Importantly, we found that 30 s of exposure to oxygen produced nearly the same protection as 5 min exposure suggesting that oxygen exposure could start after a seizure starts (p = .0012 for 30 s oxygen exposure). Experiments with 50% oxygen/50% air mixtures indicate that the oxygen concentration needs to be above about 60% to ensure that times to respiratory arrest will always be longer than a period of seizure-induced airway occlusion. Selective serotonin reuptake inhibitors, while instructive with regard to mechanism, require impractical dosing and may carry additional risk in the form of greater challenges for resuscitation. We conclude that oxygen exposure or SSRI treatment prevent seizure associated death by sufficiently prolonging the time to respiratory arrest so that respiratory function can recover after the seizure abates and eliminates the stimulus for seizure-induced apnea.

Chronic pelvic pain – pain catastrophizing, pelvic pain and quality of life

Background and aims

Chronic pelvic pain (CPP) impacts significantly on the lives of women. Negative coping responses such as pain catastrophizing are thought to be significant in predicting both pain severity and outcome. The combined effect of the individual’s response to pain and its severity on their quality of life (QoL) has not been well studied in women with CPP. Aims were to determine the prevalence of pain catastrophizing in women with CPP and to examine the associations between pain catastrophizing and levels of dysmenorrhea, non-cyclical pelvic pain, dyspareunia, dysuria, dyschezia and QoL.

Methods

A cross-sectional study including women aged 18–50 years, referred to a tertiary gynecology outpatients department at an Australian women’s hospital in 2015. Participants completed questionnaires including: pain catastrophizing scale (PCS); pelvic pain levels in the prior 3 months; and the World Health Organisation Quality of life – Bref Questionnaire (WHOQoL-Bref). Statistical analysis was performed using STATA (StataCorp, USA Version13).

Results

Participants (n = 115) had a median age of 29.0 [interquartile range (IQR): 23.0–38.0] years. The Pain catastrophizing score revealed that 60/113 [95% confidence interval (CI): 48.6, 71.2] of participants had a clinically relevant total score ≥30. There were statistically significant positive correlations between pain catastrophizing scores and pelvic pain levels in all five pain categories studied, dysmenorrhea (ρ = 0.37, p = 0.0001), non-cyclical pelvic pain (ρ = 0.46, p<0.0001), dyspareunia (ρ = 0.32, p = 0.0008), dysuria (ρ = 0.32, p = 0.0005) and dyschezia (ρ = 0.38, p = 0.0012). Participants who reported maximal pain levels (5/5) had significantly higher median pain catastrophizing scores when compared to those who reported no pain (0/5) in all categories. Overall QoL was considered as “good” in 71/113 (95% CI: 60.1, 81.0) participants and “poor” in 42/113 (95% CI: 32.0, 53.0) participants. Comparison to Australian female norms revealed significantly lower QoL scores in the physical domain, across all ages, and in psychological domain for those aged <30 and 30–40 years. There was a significant association between increased catastrophizing scores and reduced odds of good QoL. An increase in PCS by one point is associated with a 6.3% decrease in the odds of good QoL [odds ratio (OR) per one-point increase: 0.94 (95% CI: 0.89, 0.98), p = 0.008].

Conclusions

Pain catastrophizing is prevalent at clinically relevant levels in women with CPP across all domains. It is associated with higher pain levels and decreased QoL.

Implications

There is potential for further studies to investigate the predictive nature of pain catastrophizing and management targeting catastrophizing to improve outcomes in women with CPP.

Molecular testing of 163 patients with Morquio A (Mucopolysaccharidosis IVA) identifies 39 novel GALNS mutations

Morquio A (Mucopolysaccharidosis IVA; MPS IVA) is an autosomal recessive lysosomal storage disorder caused by partial or total deficiency of the enzyme galactosamine-6-sulfate sulfatase (GALNS; also known as N-acetylgalactosamine-6-sulfate sulfatase) encoded by the GALNS gene. Patients who inherit two mutated GALNS gene alleles have a decreased ability to degrade the glycosaminoglycans (GAGs) keratan sulfate and chondroitin 6-sulfate, thereby causing GAG accumulation within lysosomes and consequently pleiotropic disease. GALNS mutations occur throughout the gene and many mutations are identified only in single patients or families, causing difficulties both in mutation detection and interpretation. In this study, molecular analysis of 163 patients with Morquio A identified 99 unique mutations in the GALNS gene believed to negatively impact GALNS protein function, of which 39 are previously unpublished, together with 26 single-nucleotide polymorphisms. Recommendations for the molecular testing of patients, clear reporting of sequence findings, and interpretation of sequencing data are provided.

A comparative analysis of postpartum maternal mental health in women following spontaneous or ART conception

OBJECTIVE

To determine whether conception following assisted reproductive technology (ART) predisposes women to increased risk of postnatal depression (PND), compared to women who conceived naturally, when controlling for such factors as: multiple birth, previous maternal psychiatric history and sociodemographic status.

PARTICIPANTS

A total of 200 women who attended the private antenatal and fertility clinics of a fertility specialist in a large Australian city between January 2009 and December 2011 were contacted via telephone.

RESULTS

There was no difference in the rate of PND between the two groups (7.5% versus 7.4%, p = ns). Aside from the slightly older maternal age in the ART group (35.4 versus 33, p < 0.05), baseline socio-demographics were similar. There was a significantly higher rate of previous maternal clinical depression in the ART group compared to the controls (17% versus 5%, p < 0.05); however, other known risk factors for PND, including previous PND (10.6% versus 13.7%, p = ns), multiple births (2.1% versus 4.2%, p = ns) and low infant birth weight (3.3 kg versus 3.4 kg, p = ns), were not different in the two cohorts. Women who conceived naturally were also more likely to breastfeed for a longer duration (78% versus 89%, p < 0.05).

CONCLUSION

Our study demonstrates that when accounting for well-known risk and protective factors for postpartum depression, women who conceive using ART are not at an increased risk PND. In addition, the low rate of multiple births in the ART group further validates the practice of single embryo transfer.

The impact of meeting donor management goals on the development of delayed graft function in kidney transplant recipients

Many organ procurement organizations (OPOs) utilize preset critical care endpoints as donor management goals (DMGs) in order to standardize care and improve outcomes. The objective of this study was to determine the impact of meeting DMGs on delayed graft function (DGF) in renal transplant recipients. All eight OPOs of the United Network for Organ Sharing Region 5 prospectively implemented nine DMGs in every donor after neurologic determination of death (DNDD). "DMGs met" was defined a priori as achieving any seven of the nine DMGs and this was recorded at the time of consent for donation to reflect donor hospital ICU management, 12-18 h later, and prior to organ recovery. Multivariable analyses were performed to identify independent predictors of DGF (dialysis in the first week after transplantation) with a p<0.05. A total of 722 transplanted kidneys from 492 DNDDs were included. A total of 28% developed DGF. DMGs were met at consent in 14%, 12-18 h in 32% and prior to recovery in 38%. DGF was less common when DMGs were met at consent (17% vs. 30%, p=0.007). Independent predictors of DGF were age, Cr and cold ischemia time, while meeting DMGs at consent was significantly protective. The management of potential organ donors prior to consent affects outcomes and should remain a priority in the intensive care unit.

Publication guidelines for quality improvement in health care: evolution of the SQUIRE project

In 2005, draft guidelines were published for reporting studies of quality improvement interventions as the initial step in a consensus process for development of a more definitive version. This article contains the full revised version of the guidelines, which the authors refer to as SQUIRE (Standards for QUality Improvement Reporting Excellence). This paper also describes the consensus process, which included informal feedback from authors, editors and peer reviewers who used the guidelines; formal written commentaries; input from a group of publication guideline developers; ongoing review of the literature on the epistemology of improvement and methods for evaluating complex social programmes; a two-day meeting of stakeholders for critical discussion and debate of the guidelines' content and wording; and commentary on sequential versions of the guidelines from an expert consultant group. Finally, the authors consider the major differences between SQUIRE and the initial draft guidelines; limitations of and unresolved questions about SQUIRE; ancillary supporting documents and alternative versions that are under development; and plans for dissemination, testing and further development of SQUIRE.

Sensitivity of carbon sequestration costs to soil carbon rates

Modifying current agricultural management practices as a means of sequestering carbon has been shown to be a relatively low cost way to offset greenhouse gas emissions. In this paper we examine the sensitivity of the estimates of the amount of soil carbon sequestered and the implied costs of sequestering a tonne of carbon to changes in the rates of soil carbon sequestered for alternative production practices. An application is made to the dryland grain production systems of the US Northern Plains where the marginal costs of soil C range from $20 to $100 per MT. We show that the resulting changes in the marginal costs quantities of C sequestered are not a monotonic transformation of the changes in the soil carbon rates. These results underscore the importance of using a linked economic and biophysical simulation model to assess the economic potential for sequestering carbon in agricultural soils.

Examination performance and graphological analysis of students' handwriting

Research has yielded mixed support for graphological claims. The present study was designed to see whether specific components of students' handwriting were related to personality traits associated with achievement in written examinations. If aspects were identified that could be used to predict future academic performance, the findings would not only be of interest to graphologists but would be invaluable to both student and tutor in a teaching environment. In a blind trial, 100 handwriting samples from first-year scripts were analysed for the presence or absence of 12 graphological characteristics deemed to be relevant for academic performance, and each of these aspects was tested for association with the grade points awarded. Statistically significant differences were found for two of the 12 characteristics: "carefulness" and "constancy." Also, measurements of individual letters indicated that consistent slant was significantly associated with high grade points, whereas upright or mixed writing was not. These attributes appeared to be generally related to readability and aesthetic quality. Although such aspects might influence the grading of scripts by teachers, typed versions received similar grades to those awarded for the handwritten versions.

Heparin versus citrate regional anticoagulation during autotransfusion in a porcine intra-abdominal hemorrhage model

Our objective was to determine the effects of anticoagulants and blood loss on hemodynamic, hematologic, and coagulation parameters following autotransfusion in an animal model of intraabdominal hemorrhage. We performed a prospective, randomized observational animal study at an animal research laboratory at a university medical center. Eight Landrace, domestic pigs, weighing 17-23 kg, each underwent jugular venous and iliac arterial catheterization and laparotomy with retroperitoneal dissection for aortic exposure to simulate an operative environment. Following baseline laboratory and hemodynamic determinations, intra-abdominal hemorrhage was accomplished via aortotomy in three sequential 10 mL/kg blood volumes. After allowing pooling in the exposed retroperitoneum to ensure tissue contact, the shed blood was suctioned, processed, and washed in an autotransfusion device utilizing either heparin (n = 4) or acid-citrate-dextrose (n = 4) as a system anticoagulant. Prior to autologous transfusion, each pig received a 20 mL/kg intravenous bolus of 0.9 per cent saline to treat shock. The processed blood was then infused, and laboratory and hemodynamic measurements were repeated following each cycle of hemorrhage and autotransfusion. Sequential fixed volume hemorrhage resulted in significant reductions in mean arterial pressure. Despite crystalloid infusion and transfusion of processed shed blood, postresuscitation mean arterial pressure did not return to baseline values, with no difference noted between anticoagulant groups. Infusion of increasing volumes of autologous blood resulted in significant reductions in hematocrit, platelet count, fibrinogen, antithrombin III, ionized calcium, and total protein. The decrease in concentration of each variable was independent of the choice of anticoagulant with the exception of antithrombin III, with higher levels noted in animals receiving blood anticoagulated with acid-citrate-dextrose. Prothrombin time and partial thromboplastin time were unaffected by volume of autologous transfusion or choice of anticoagulant. We conclude that changes in hemodynamic, hematologic, and coagulation parameters associated with hemorrhage and autotransfusion appear related more to the volume of blood loss and the cumulative pheresis of plasma than to the choice of anticoagulant.

Effects of intraluminal and extracorporeal inferior vena caval bypass on canine hemodynamics

OBJECTIVE

To compare inferior vena cava-right atrial extracorporeal bypass with intraluminal atriocaval shunting during hepatic vascular isolation.

DESIGN

Prospective, randomized, controlled animal study.

SETTING

University research laboratory.

SUBJECTS

Adult mongrel dogs (n = 5) weighing 20 to 27 kg.

INTERVENTIONS

Anesthetized dogs underwent laparotomy and sternotomy for vascular isolation. For atriocaval shunting, 20- and 24-Fr intraluminal shunts were inserted into the inferior vena cava via right atriotomy. For extracorporeal bypass, each animal underwent inferior vena cava, portal vein, and right atrial cannulation for venovenous bypass, utilizing a centrifugal pump. Hemodynamic data were recorded at baseline and at intervals after caval occlusion, Pringle maneuver, and caval occlusion with Pringle maneuver.

MEASUREMENTS AND MAIN RESULTS

Isolated Pringle maneuver and caval occlusion with Pringle maneuver produced significant reductions in mean arterial pressure (MAP) and cardiac output, irrespective of pulmonary artery occlusion pressure. Extracorporeal bypass, including both caval and portal venous return, produced significant increases in MAP and cardiac output during caval occlusion with Pringle maneuver, while atriocaval shunting and extracorporeal bypass without portal venous return did not improve MAP or cardiac output.

CONCLUSION

Venovenous extracorporeal bypass with portal return, acting as a right ventricular assist device, is superior to intraluminal atriocaval shunting in maintaining hemodynamic stability during hepatic vascular isolation.

Infant apnea detection after herniorrhaphy

STUDY OBJECTIVE

To elucidate risk factors for apnea in preterm infants discharged from the hospital and in full-term healthy infants. To determine the efficacy of real-time cardiopulmonary monitoring versus computerized storage and retrieval for infants at risk.

STUDY DESIGN

Prospective study.

SETTING

Operating rooms and pediatric patient care units of university medical center.

PATIENTS

27 preterm infants and 20 full-term infants no more than 60 weeks' post-conceptional age, who were admitted for elective herniorrhaphy.

INTERVENTIONS

Infants were monitored before and after herniorrhaphy with general anesthesia using an infant apnea impedance monitor, pulse oximetry, and nursing observation.

MEASUREMENTS AND MAIN RESULTS

Demographic information and medical history were correlated with postoperative apnea. The sensitivity and specificity of nursing observation and oximetry were compared with computerized apnea monitors. Five patients (11%, four preterm, one full-term) were apneic postoperatively as recorded by computerized pneumocardiography. Previous apnea history, gestational age at birth, and postconceptional age at operation positively correlated with postoperative apnea. Nursing observation failed to detect 4 of 5 patients with documented apnea (sensitivity 20%, positive predictive value 50%). Pulse oximetry failed to detect 3 of 5 patients with apnea (sensitivity 40%, positive predictive value 66%).

CONCLUSIONS

Although it is easier to predict postoperative respiratory dysfunction in previously sick or very young infants, absolute predictability for all neonates remains elusive. Clinical monitors with both storage and retrieval capabilities and real-time monitoring increase our ability to detect significant events in children at risk for apnea after herniorrhaphy.

Preparation of blood components

The processing of blood into various components and the knowledge of component usage enables veterinarians to support and beneficially treat more animals. Blood products include packed red blood cells; fresh frozen, fresh, and modified plasma; cryoprecipitate; platelets; and concentrates. Some methods of preparation of blood products and storage are presented.

Cancer of the maxillary sinus treated with surgery and/or radiation therapy

This is an analysis of 37 previously untreated patients with squamous cell carcinoma of the maxillary sinus treated with curative intent at the University of Florida from January 1966 through January 1984. All patients were followed for at least two years and 86 per cent (32/27) were followed for a minimum of five years. Patients were treated for cure with radiation therapy alone (25), surgery alone (1), or surgery and preoperative (6) or postoperative (5) radiation therapy. This study presents the results of treatment and the incidence of treatment-related complications in this group of patients.

Viewing distance affects stereoscopic tilt created with spatial frequency disparity

A controversy exists as to whether stereoscopic tilt created with interocular differences in spatial frequency is based on perception of spatial frequency disparity or positional disparity. To determine which hypothesis is correct, we investigated the influence of viewing distance on perceived tilt. Tilt was induced by having observers view, at three viewing distances, dichoptic spatial frequency grating patterns differing in frequency by 25%. By appropriate physical scaling of the size of the patterns, their spatial frequency and angular width remained unchanged as distance varied. Under such conditions, the spatial frequency disparity hypothesis predicts no effect of distance, whereas the positional disparity hypothesis predicts a significant effect of distance (due to stereoscopic depth constancy) on the magnitude of tilt. The results showed that perceived tilt does covary with distance, a result consistent with only the positional disparity hypothesis.

The detection of conventional class I and class II I-E homologue major histocompatibility complex molecules on feline cells

The presence on feline cells of class I and class II I-E type major histocompatibility complex (MHC) homologues was demonstrated using cross-reacting monoclonal antibodies (mAb). The feline class I antigen homologues were detected with both immunofluorescent and biochemical techniques, using the anti-human class I mAb W6/32. The class I antigens were detected on in vitro cultured feline fibroblasts and lymphoid cells, but not on fresh lymphoid cells, apparently as a result of the association of bovine beta-2 microglobulin with feline class I heavy chains which generated the determinant(s) recognized by mAb W6/32. Class II I-E-like molecules could be detected with immunofluorescent techniques using the species cross-reactive anti-mouse I-E antibody 40D only when peripheral blood mononuclear cells were activated, for example, with the mitogens staphylococcus enterotoxin A or lipopolysaccharide. The predominant expression of I-A-like molecules by resting class II-positive feline cells could explain some of the functional difference we have seen in comparison with those of most other mammalian species.

Feline melanoma: a comparative study of ocular, oral, and dermal neoplasms

Melanomas diagnosed in 29 cats over an 11 year period included 19 ocular (16 intraocular, three palpebral), five oral, and five dermal melanomas. Intraocular melanomas involved the ciliary body and iris in 12; the whole eye was involved in four. The average age of cats with intraocular melanomas was 11 years; the female : male ratio was 9 : 7. Histologically, eight intraocular tumors were mixed, six were epithelioid, and two were spindle cell. Ten of 16 cats (62.5%) with intraocular melanomas were killed because of the tumor at a mean of 156 days; four are living with no evidence of disease (average, 255 days). The mean time of death in cats with palpebral melanoma was 409 days. Metastasis occurred in 63% of cats with intraocular melanoma and all cats with palpebral melanoma. Four cats with oral melanoma were killed at a mean of 61 days; all had metastasis. Of five cats with cutaneous melanoma, one was killed with metastasis at 90 days; three cats were alive without evidence of recurrence or metastasis greater than 365 days after surgery. Results of this study indicate that in the cat, ocular melanomas are more common than oral and dermal melanomas, and ocular and oral melanomas are more malignant than dermal melanomas, with higher rates of mortality and metastasis.

Primary pulmonary neoplasia in the dog and cat

This article covers the pertinent clinical, physical, and radiographic findings in dogs and cats with primary pulmonary neoplasia. Diagnostic and treatment recommendations are made. Although primary pulmonary neoplasia is rare in both the dog and cat, it appears to be diagnosed with increasing frequency. Early detection and surgical treatment of carefully selected cases can prolong a good quality of life.

Evaluation of effects of levamisole and surgery on canine mammary cancer

Three hundred and forty-five dogs with mammary tumors were initially evaluated for study. One hundred and forty-four dogs with untreated malignant mammary tumors (136 adenocarcinomas, 5 malignant mixed, 3 sarcomas) were selected for study. All dogs were clinically staged and stratified on the basis of tumor volume and body weight. Dogs were randomized to either a radical mastectomy or simple mastectomy group, and then further randomized to a levamisole or placebo group. There was no significant difference in either survival time or cancer-free survival time between the surgery groups or between the levamisole and placebo groups. The most significant prognostic factor was tumor volume; dogs with tumors less than 41 cc had significantly enhanced survival time (p = 0.0007) and cancer-free survival time (p = 0.0005).