Basal cell carcinomas in organ transplant recipients versus the general population: clinicopathologic study.

Organ transplant recipients (OTRs) are at greater risk of basal cell carcinomas (BCCs) than non-OTRs, but histopathologic differences between BCCs in OTRs and the general population are largely unknown. We compared clinicopathologic features of BCCs in OTRs vs the general population in Queensland, Australia. Details of BCC tumors (site, size, level of invasion, subtype, biopsy procedure) were collected from histopathology reports in two prospective skin cancer studies, one in OTRs and one general-population-based. We used log-binomial regression models to estimate age- and sex-adjusted prevalence ratios (PR) with 95% confidence intervals (CIs) for BCC features. Overall, there were 702 BCCs in 200 OTRs and 1725 BCCs in 804 population cases. Of these, 327 tumors in 128 OTRs were higher risk BCCs (any head and neck BCC; ≥ 2 cm on trunk/extremities), more per person than 703 higher risk BCCs in 457 cases in the general population (chi-square p = 0.008). Among head/neck BCCs, OTRs were more likely than general population cases to have BCCs on scalp/ear than on face/lip/neck (PR = 1.5, 95%CI 1.2-1.8). Although aggressive subtypes were less common among higher risk BCCs in OTRs, BCCs invading beyond the dermis were almost twice as prevalent in OTRs (PR = 1.8, 95% CI 1.3-2.6) than the general population.

Rotational thromboelastometry (ROTEM® ) in gestational diabetes mellitus and coagulation in healthy term pregnancy: A prospective observational study in Australia.

BACKGROUND: Rotational thromboelastometry (ROTEM® ) is a point-of-care test of coagulation. ROTEM® -defined hypercoagulability has been identified in pregnant women and in non-pregnant patients with diabetes mellitus. Pregnancy is known to be a hypercoagulable state, but the influence of gestational diabetes mellitus (GDM) on coagulation is unknown. AIM: The aim of this study was to assess the combined effect of pregnancy and GDM on coagulation using ROTEM® and to compare this to healthy pregnant women presenting for elective caesarean delivery. MATERIALS AND METHODS: Ethics approval was granted for recruitment of women presenting for elective caesarean delivery. Women with pre-existing conditions affecting coagulation were excluded. Group N included health pregnant women at term and Group G included pregnant women at term with GDM. Data regarding GDM management and glycaemic control were collected. Poor glycaemic control was defined by markers of accelerated fetal growth and elevated fasting or postprandial blood glucose levels. The ROTEM® parameters (extrinsically activated thromboelastometric test (EXTEM) / fibrin polymerisation test (FIBTEM) amplitude at five minutes, coagulation time, maximum clot firmness and clot formation time) were compared between the two groups using Student's t-test. RESULTS: There were 75 women in Group N and 21 women in Group G. Mean age and median body mass index values were comparable for both groups. There were no statistical differences found between the EXTEM and FIBTEM parameters analysed for the two groups. CONCLUSIONS: There was no association between GDM and increased hypercoagulability as demonstrated by ROTEM® parameters in healthy pregnant women presenting for elective caesarean delivery at term.

Destructive and topical treatments of skin lesions in organ transplant recipients and relation to skin cancer.

Various treatments of keratotic skin lesions and early skin cancers are performed in organ transplant recipients (OTRs) at high risk of skin malignancies but the frequency of their use is unknown. We prospectively assessed the frequency of use of cryotherapy, diathermy, and topical therapies and also investigated their associations with background incidence of histologically-confirmed squamous-cell carcinoma (SCC) and basal cell carcinoma (BCC) in a cohort of OTRs in Queensland, Australia. Median follow-up ranged from 1.7 to 3.2 years across organ transplant groups. Among 285 kidney, 125 lung and 203 liver transplant recipients [382 (62%) male, 380 (62%) immunosuppressed > 5 years, 394 (64%) previously diagnosed with skin cancer], 306 (50%) reported treatment of skin lesions with major types of non-excision therapies during follow-up: 278 (45%) cryotherapy or diathermy; 121 (20%) topical treatments. Of these 306, 150 (49%) developed SCC at double the incidence of those who did not receive these treatments, as assessed by incidence rate ratio (IRR) adjusted for age, sex, type of organ transplant, skin color and history of skin cancer at baseline, calculated by multivariable Poisson regression (IRRadj = 2.1, 95% confidence interval (CI) 1.4-3.1). BCC incidence was not associated with these therapies. Skin lesions in OTRs that are treated with cryotherapy, diathermy, or topical treatment warrant judicious selection and careful follow-up.

Omega-3 fatty acid intake and decreased risk of skin cancer in organ transplant recipients.

PURPOSE: Organ transplant recipients have over 100-fold higher risk of developing skin cancer than the general population and are in need of further preventive strategies. We assessed the possible preventive effects of omega-3 polyunsaturated fatty acid (PUFA) intake from food on the two main skin cancers, squamous cell carcinoma (SCC) and basal cell carcinoma (BCC) in kidney and liver transplant recipients. METHODS: Adult kidney or liver transplant recipients transplanted for at least 1 year and at high risk of skin cancer were recruited from the main transplant hospital in Queensland, 2012-2014 and followed until mid-2016. We estimated their dietary total long-chain omega-3 PUFAs and α-linolenic acid intakes at baseline using a food frequency questionnaire and ranked PUFA intakes as low, medium, or high. Relative risks (RRsadj) of skin cancer adjusted for confounding factors with 95% confidence intervals (CIs) were calculated. RESULTS: There were 449 transplant recipients (mean age, 55 years; 286 (64%) male). During follow-up, 149 (33%) patients developed SCC (median 2/person; range 1-40) and 134 (30%), BCC. Transplant recipients with high total long-chain omega-3 PUFA compared with low intakes showed substantially reduced SCC tumour risk (RRadj 0.33, 95% CI 0.18-0.60), and those with high α-linolenic acid intakes experienced significantly fewer BCCs (RRadj 0.40, 95% CI 0.22-0.74). No other significant associations were seen. CONCLUSION: Among organ transplant recipients, relatively high intakes of long-chain omega-3 PUFAs and of α-linolenic acid may reduce risks of SCC and BCC, respectively.

Thyroid autoimmunity and IVF/ICSI outcomes in euthyroid women: a systematic review and meta-analysis.

BACKGROUND: Thyroid autoimmunity (TAI) - the presence of anti-thyroid peroxidase and/or anti-thyroglobulin antibodies - affects 8-14% of reproductively-aged women. It is hotly debated whether TAI adversely affects IVF/ICSI outcomes. This systematic review and meta-analysis evaluated the relationship between thyroid autoimmunity (TAI) and IVF/ICSI outcomes, both overall and amongst euthyroid women of known age using strict criteria for grouping pregnancy outcomes. METHODS: The review was registered with PROSPERO: CRD42019120947. Searches were undertaken in MEDLINE, EMBASE, Web of Science and Cochrane Database from Inception-March 2020. Primary outcomes were clinical pregnancy rate, clinical miscarriage rate, biochemical pregnancy loss, livebirth rate per-cycle and live birth rate per clinical pregnancy (CP). RESULTS: 14 studies were included in the meta-analysis. Compared with women who tested negative for thyroid autoantibodies (TAI-), there was no significant difference in clinical pregnancy rate overall (OR 0.86; 95%CI [0.70, 1.05]; P = 0.14; 11 studies; I2 = 29.0%), or in euthyroid women (OR 0.88; 95%CI [0.69, 1.12]; P = 0.29; 10 studies; I2 = 32.0%). There was also no significant difference in clinical miscarriage rate overall (OR 1.04; 95%CI [0.52, 2.07]; P = 0.908; 8 studies; I2 = 53%), or in euthyroid women (OR 1.18; 95%CI [0.52, 2.64]; P = 0.69; 7 studies; I2 = 54%). There was no significant difference in biochemical pregnancy loss (OR 1.14; 95%CI [0.48, 2.72]; P = 0.769; 4 studies; I2 = 0.0%), live birth rate per cycle (OR 0.84; 95%CI [0.67, 1.06]; P = 0.145; I2 = 1.7%), live birth rate per clinical pregnancy (OR 0.67; 95%CI [0.28, 1.60]; P = 0.369; I2 = 69.2%), both overall and in euthyroid women as all studies included consisted of euthyroid women only. There was also no significant difference in number of embryos transferred, number of oocytes retrieved, mean maternal age or TSH levels overall or in euthyroid women. CONCLUSION: The findings of the present study suggest that thyroid autoimmunity has no effect on pregnancy outcomes in euthyroid women alone, or in euthyroid women and women with subclinical hypothyroidism.

The Effect of Pre-Operative Medical Co-Morbidities on Rehabilitation Outcomes Following Surgery for Hip Fracture Management in Geriatric Populations.

INTRODUCTION: As a result of increasing longevity, we are seeing more elderly patients with complex medical co-morbidities who sustain hip fractures requiring surgical management. The aim of this study is to understand and analyze the effect of preoperative medical comorbidities and associated low physiological reserve status on functional rehabilitation outcomes following surgical management of hip fractures. MATERIALS AND METHODS: This study conducted a retrospective analysis of 73 patients who fulfilled the inclusion criteria .We utilized the de Morton Mobility Index (DEMMI) scores pre surgery and at the time of discharge from hospital following a period of rehabilitation as a measure of their pre and post-surgery functional status. The Physiological and Operative Score (POSSUM) was used as our tool to objectively quantify medical co-morbidities including but not limited to cardiovascular and pulmonary conditions. RESULTS: The median age of our study population was 83 years of which 55(75%) were female. Time to surgery was a median of 21.0 hours, IQR (15.0-29.0), with a median physiological score of 21.0, IQR (19.0-26.0), the median pre surgery DEMMI was 85.0, IQR (55.5- 100.0) and the median DEMMI at discharge was 33.0, IQR (30.0-41.0).There is a moderate correlation between DEMMI pre and DEMMI at 3 months, 0.38 that is statistically significant, p = 0.001. DISCUSSION: The effect of medical co- morbidities which causes the patient to have a poor physiological reserve even when coupled with the effect of the operative stress have no significant negative impact on the 90-day functional outcome of these patients. CONCLUSION: This study demonstrated that the presence of medical comorbidities in patients who require surgical management of hip fractures would not adversely affect their rehabilitation outcomes. The preinjury functional status of a patient is a significant factor in predicting functional rehabilitation outcomes.

Bacterial colonisation of the endotracheal tube in ventilated very preterm neonates: A retrospective cohort study.

AIM: To determine the rate, type and timing of bacterial endotracheal tube (ETT) colonisation in neonates born <32 weeks gestational age (GA); and if bacterial colonisation is associated with chronic lung disease (CLD), septicaemia, length-of-stay or mortality. METHODS: All intubated newborns born <32 weeks GA were included. Endotracheal aspirates were routinely obtained three times-per-week. Cohort was divided into three colonisation groups: no growth, normal respiratory flora only, significant bacteria. Logistic regression was performed to identify if ETT bacterial colonisation was associated with CLD, septicaemia or mortality. A general linear model was fitted for length-of-stay. RESULTS: ETT aspirates were sent from 1054 infants: no growth n = 319, only normal respiratory flora n = 357, and significant bacteria n = 378. ETTs became colonised in 70%, most in the first week of life (82%). Most grew normal respiratory flora (642 infants). In those with significant bacteria, 40% grew Gram-negative species; Klebsiella in 34%. Staphylococcus aureus grew in 104 patients. Adjusted odds ratios for CLD (43% of cohort) compared with no growth were, for normal respiratory flora, 0.58 (95% confidence interval (CI) 0.34-0.99) and, for significant bacteria, 0.48 (95% CI 0.24-0.93). With no overall association between colonisation group and CLD in the adjusted model P = 0.07. The odds of septicaemia (10% of cohort) were 4.50 (95% CI 1.98-10.23, P < 0.001) times greater for significant bacteria compared with no growth. No significant associated was found with mortality or length-of-stay. CONCLUSIONS: Bacterial colonisation of ETTs is common. It is associated with more septicaemia. There was no significant association with CLD, longer admission or mortality.

The influence of obesity on coagulation in healthy term pregnancy as assessed by rotational thromboelastometry.

BACKGROUND: Rotational thromboelastometry (ROTEM® ) is a point-of-care coagulation test which has been used to demonstrate hypercoagulability in pregnant populations and obese populations. AIM: The aim of this study was to assess the combined effect of pregnancy and obesity on coagulation using ROTEM® in healthy pregnant women of varying body mass indices (BMIs) presenting for elective caesarean delivery. MATERIALS AND METHODS: Ethics approval was granted for recruitment of women presenting for elective caesarean delivery. Women with any condition affecting coagulation were excluded. The ROTEM® parameters of extrinsically activated thromboelastometric test / fibrin polymerisation test (EXTEM/FIBTEM) amplitude at five minutes (A5), coagulation time (CT), maximum clot firmness (MCF) and clot formation time (CFT) were compared between three different groups: normal weight, overweight and obese women. RESULTS: One hundred and eighty-five women presenting for elective caesarean delivery met inclusion criteria and were divided into three groups; normal weight (BMI < 25 kg/m2 , n = 86), overweight (BMI 25-29.9 kg/m2 , n = 54) and obese (BMI ≥ 30 kg/m2 , n = 45). They had a mean (SD) age of 32.7 ± 5.0 years and the median (interquartile range) BMI of 21.9 kg/m2 (20.5-23.0), 27.0 kg/m2 (26.0-28.5), 36.0 kg/m2 (32.2-41.8) for the normal weight, overweight and obese groups respectively. Forty-one (22.2%) women were nulliparous. Across the three groups for FIBTEM A5 (P = 0.018), FIBTEM MCF (P = 0.032), FIBTEM CFT (P = 0.047) and EXTEM MCF (P = 0.015) there was evidence of increasing coagulability with increasing BMI. However, following Bonferroni correction, this was no longer significant. CONCLUSIONS: There is no association between BMI and ROTEM® parameters in pregnant women presenting for elective caesarean delivery at term.

The impact of removing gastric residual volume monitoring and enteral nutrition rate titration in adults receiving mechanical ventilation.

BACKGROUND: Monitoring gastric residual volume (GRV) and titrating enteral nutrition (EN) towards goal rate are common practices in the intensive care unit (ICU) despite limited supportive evidence. We investigated the effect of removal of GRV monitoring and commencing EN at goal rate had on EN provision in mechanically ventilated ICU patients. METHODS: We conducted a single-centre, pre-post implementation study, in a 10-bed ICU comprising 181 patients with ventilation ≥48 h and given EN within 24 h of intubation. EN adequacy, expressed as the proportion of patients receiving ≥90% of the prescribed volume during the first 24 h of feeding, was compared before and after implementation. Secondary outcomes included EN adequacy over entire ICU stay; incidence of gastrointestinal intolerance in terms of vomiting, abdominal distension, and GRV >200 ml; prokinetic use; onset of a ventilator-associated condition; ventilation duration; length of stay; and mortality. RESULTS: After intervention, the proportion of patients meeting ≥90% of their prescribed EN volume within the first 24 h of feeding increased by 38.1% (pre: 46.4%, 95% confidence interval [CI]: 36.7-56.3; post: 84.5%, 95% CI: 75.8-91.2; p < 0.001). Over their entire ICU stay, the proportion of patients meeting ≥90% of their prescribed EN volume increased by 21.4% (pre: 61.9%, 95% CI: 52.0-71.1; post: 83.3%, 95% CI: 74.4-90.2; p = 0.001). Gastrointestinal intolerance reduced by 34.0% (pre: 80.4%, 95% CI: 71.8-87.5; post: 46.4%, 95% CI: 36.0-57.1; p < 0.001) and fewer prescribed prokinetic agents (pre: 57.7%, 95% CI: 47.8-67.3; post: 23.8%, 95% CI: 15.6-33.6; p < 0.001). CONCLUSIONS: Removal of GRV monitoring and commencing EN at goal resulted in significantly increased EN provision during the first 24 h of feeding and entire ICU stay with reduced prokinetic use and gastrointestinal complications.

Short- and long-term outcomes of neutropenic cancer patients in intensive care according to requirement for invasive ventilation.

BACKGROUND: Neutropenic fever is a frequently encountered complication when caring for cancer patients and can lead to intensive care admission, with high mortality rates in those patients who require invasive mechanical ventilation (IMV). Although hospital survival in this population has improved, long-term outcomes of critically ill neutropenic cancer patients have not been well defined. AIMS: To evaluate short- and long-term outcomes of neutropenic cancer patients admitted to intensive care, according to requirement for invasive ventilation. Additionally, we aimed to determine predictors of poor clinical outcomes in this group. METHODS: A retrospective cohort study of neutropenic cancer patients admitted to our intensive care unit (ICU) from 2008 to 2016. RESULTS: We included 192 cancer patients of whom 100 (52.1%) required IMV. Overall ICU mortality was 29.7% and 12-month post-ICU mortality was 61.5%. Patients requiring IMV had significantly higher short- and long-term mortality (P < 0.001). Multivariate analysis determined three variables to be predictors of mortality at ICU discharge in the whole cohort: IMV (OR 13.52), renal replacement therapy (RRT, OR 2.37) and higher APACHE II scores (OR 1.1 for each unit increase). These variables were identical in the subgroup requiring invasive ventilation, with RRT (OR 2.76) and APACHE II scores (OR 1.1 for each unit increase) predicting short-term mortality. CONCLUSION: Neutropenic cancer patients admitted to ICU have lower short-term mortality than previously reported in cohort studies, however their mortality rises significantly following discharge from ICU. Those patients who require IMV are at significantly increased risk of both short- and long-term mortality.

Urinary tract infections in renal transplant recipients at a quaternary care centre in Australia.

BACKGROUND: Urinary tract infections (UTI) are the most common of infections after renal transplantation. The consequences of UTIs in this population are serious, with increased morbidity and hospitalisation rates as well as acute allograft dysfunction. UTIs may impair overall graft and patient survival. We aimed to identify the prevalence and risk factors for post-transplant UTIs and assess UTIs' effect on renal function during a UTI episode and if they result in declining allograft function at 2 years post-transplant. Additionally, the causative organism, the class of antibacterial drug employed for each UTI episode and utilisation rates of trimethoprim/sulfamethoxazole (TMP/SMX) prophylaxis were also quantified. METHODS: This was a retrospective study of 72 renal transplant patients over a 5-year period who were managed at the Royal Brisbane and Women's Hospital. Patient charts, pathology records and dispensing histories were reviewed as part of this study and all UTIs from 2 years post transplantation were captured. RESULTS: Of these patients, 20 (27.8%) had at least one UTI. Older age (p = 0.015), female gender (p < 0.001), hyperglycaemia (p = 0.037) and acute rejection episodes (p = 0.046) were risk factors for developing a UTI on unadjusted analysis. Female gender (OR 4.93) and age (OR 1.03) were statistically significant risk factors for a UTI on adjusted analysis. On average, there was a 14.4% (SEM 5.20) increase in serum creatinine during a UTI episode, which was statistically significant (p = 0.027), and a 9.1% (SEM 6.23) reduction in serum creatinine after the UTI episode trending toward statistical significance. (p = 0.076). Common organisms (Escherichia coli and Klebsiella pneumoniae) accounted for 82% of UTI episodes with 70% of UTI cases requiring only a single course of antibiotic treatment. Furthermore, the antibiotic class used was either a penicillin (49%) or cephalosporin (36%) in the majority of UTIs. The use of TMP/SMX prophylaxis for Pneumocystis carinii pneumonia prophylaxis did not influence the rate of UTI, with > 90% of the cohort using this treatment. CONCLUSIONS: There was no significant change in serum creatinine and estimated glomerular filtrate rate from baseline to 2 years post-transplant between those with and without a UTI.

Hyperbaric oxygen treatment for the management of radiation-induced xerostomia.

INTRODUCTION: Hyperbaric oxygen therapy (HBOT) is widely used for the treatment of the late effects of radiation therapy. We report a prospective observational cohort study of 51 patients designed to examine the effectiveness of hyperbaric oxygen treatment (HBOT) for xerostomia following radiotherapy. METHODS: Objective (saliva volume) and subjective (quality of life scoring and visual analogue scale (VAS) of discomfort) measurements associated with xerostomia were compared prior to commencement of HBOT, after 30 sessions (over 6 weeks) of HBOT at 243 kPa for 90 minutes daily for five days per week and at 6-week review (12 weeks from commencement). RESULTS: One hundred and one courses of treatment in 99 patients were examined. For 53 (53%) courses in 51 patients, data were recorded before and after HBOT and so could be included in the analysis. Thirty-four (34%) of these patients had complete data for all three time points. The unit of study was per treatment course, not per person. There were no major complications to HBOT. There was a statistically significant difference in saliva volume following HBOT (P = 0.016). The mean saliva volume increase was 0.9 mL over a 5-min collection period (95% CI 0.2-1.5). There was also a statistically significant improvement in discomfort after HBOT (P < 0.001) and QOL (P < 0.001). The mean visual analogue scale for discomfort (VAS on a 0-10 scale) score decreased by 1.4 units (95% CI 0.7-2.1), whilst the mean QOL score was 10 points lower after treatment (95% CI 5.9-14.4). CONCLUSION: Hyperbaric oxygen therapy may be a safe and effective treatment for symptoms of xerostomia after radiation therapy and should be considered when available.

The availability of probiotics and donor human milk is associated with improved survival in very preterm infants.

BACKGROUND: To determine whether the introduction of pasteurized donor human milk and probiotics for infants born < 32 weeks gestational age or < 1500 g birthweight is associated with a reduction in mortality and the incidence of necrotising enterocolitis (NEC) and sepsis. METHODS: We performed a retrospective analysis of two cohorts: before and after the introduction of probiotics and pasteurised donor human milk. Univariate analysis of primary and secondary outcomes was performed; variables impacting outcomes were assessed using multivariate logistic regression. RESULTS: There were 1791 infants: 1334 in the pre-donor milk/probiotic cohort and 457 in the post-donor milk/probiotic cohort. On univariate analysis, mortality (7.6 vs. 2.4%, P < 0.001) and incidence of sepsis (6.2 vs. 3.5%, P = 0.028) were statistically significantly lower in the post-donor milk/probiotic group. NEC (2.8 vs. 1.5%, P = 0.14) and non-NEC associated gastrointestinal perforation (1.6 vs. 0.4%, P = 0.052) were lower in the post-donor milk/probiotics cohort, but these were not statistically significant. The difference in mortality remained statistically significant on multivariate analysis in the post-donor milk/probiotic cohort compared to those in the pre-donor milk/probiotic cohort (odds ratio 0.31, 95% confidence interval 0.16-0.61). The decrease in the incidence of NEC was consistent with previous observational studies but the difference was not statistically significant. CONCLUSION: The availability of probiotics and pasteurised donor human milk is associated with a reduction in mortality in very preterm infants.

Audit of practice in Australasian hyperbaric units on the incidence of central nervous system oxygen toxicity.

INTRODUCTION: Central nervous system oxygen toxicity (CNS-OT) is an uncommon complication of hyperbaric oxygen treatment (HBOT). Different facilities have developed local protocols in an attempt to reduce the risk of CNS-OT. This audit was performed to elucidate which protocols might be of benefit in mitigating CNS-OT and to open discussion on adopting a common protocol for Treatment Table 14 (TT14) to enable future multicentre clinical trials. METHODS: Audit of CNS-OT events between units using different compression profiles for TT14, performed at 243 kPa with variable durations of oxygen breathing and 'air breaks', to assess whether there is a statistical diference between protocols. Data were collected retrospectively from public and private hyperbaric facilities in Australia and New Zealand between 01 January 2010 and 31 December 2014. RESULTS: Eight of 15 units approached participated. During the five-year period 5,193 patients received 96,670 treatments. There were a total of 38 seizures in 33 patients when all treatment pressures were examined. In the group of patients treated at 243 kPa there were a total of 26 seizures in 23 patients. The incidence of seizure per treatment was 0.024% (2.4 per 10,000 treatments) at 243 kPa and the risk per patient was 0.45% (4.5 in 1,000 patients). There were no statistically significant differences between the incidences of CNS-OT using different TT14 protocols in this analysis. CONCLUSION: HBOT is safe and CNS-OT is uncommon. The risk of CNS-OT per patient at 243 kPa was 1 in 222 (0.45%; range 0-1%) and the overall risk irrespective of treatment table was 0.6% (range 0.31-1.8%). These figures are higher than previously reported as they represent individual patient risk as opposed to risk per treatment. The wide disparity of facility protocols for a 243 kPa table without discernible influence on the incidence of CNS-OT rates should facilitate a national approach to consensus.

Mode of delivery for singleton extreme preterm breech fetuses: A 10 year retrospective review from a single tertiary obstetric centre.

BACKGROUND: Preterm breech delivery is associated with a higher perinatal mortality rate compared with preterm vertex delivery, and some studies suggest caesarean section leads to lower mortality rates. Few studies include infants delivered less than 26 weeks gestation, and where included, results are often not stratified by gestational age. There is also a lack of consistent reporting on neonatal and maternal morbidity outcome measures. AIMS: To determine if mode of delivery for singleton extreme preterm breech fetuses is associated with a difference in perinatal mortality, neonatal and maternal morbidity. MATERIALS AND METHODS: Retrospective cohort study of breech deliveries from 23 + 0 to 27 + 6 weeks gestation (extreme preterm) between 2005 and 2014 at a tertiary obstetric facility. RESULTS: One hundred and fifty deliveries met the selection criteria. Perinatal mortality was reduced in the caesarean section group (20% vs 55.5% P < 0.001). Apgar scores ≥ 7 (P = 0.008) and cord pH ≥7.1 (P = 0.025) were more likely for neonates delivered by caesarean section, with lower rates of birth trauma (P = 0.003). Caesarean section was associated with higher nursery admission rates (P < 0.001), longer intensive care nursery admission (P = 0.006), continuous positive airway pressure times (P = 0.008) and increased use of surfactant (P < 0.001). Maternal morbidity was increased with caesarean section including longer hospital stay (P < 0.001), higher postpartum haemorrhage (P < 0.001) and wound infection rates (P = 0.034). CONCLUSION: Caesarean section for singleton extreme preterm breech delivery is associated with reduced perinatal mortality, improved neonatal condition at delivery, and increased short-term maternal morbidity.

Association Between Obesity and Wound Infection Following Colorectal Surgery: Systematic Review and Meta-Analysis.

BACKGROUND: The aim of this meta-analysis is to comprehensively review and quantify the excess risk of surgical site infections (SSI) in obese patients following colorectal surgery. METHODS: A systematic electronic search of the MEDLINE and EMBASE databases identified studies that investigated the association of obesity, defined by body mass index (BMI) with SSI among colorectal surgery patients. RESULTS: Twelve studies were included in the final analysis. Patients with BMI ≥30 kg/m2 were at 1.5 times (pooled OR 1.51, 95% CI: 1.39, 1.63, p < 0.001) higher odds of developing SSI after colorectal surgery when compared to BMI <30 kg/m2. Subgroup analysis of the eight studies that investigated only elective procedures showed that the odds of developing SSI when BMI ≥30 kg/m2 is 1.6 times that of those with BMI <30 kg/m2 (pooled OR 1.60; 95% CI 1.34, 1.86; p < 0.001). The odds of having SSI when BMI is 25-29.9 kg/m2 are 1.2 times than those with BMI <25 kg/m2 (pooled OR 1.17; 95% CI 1.07, 1.28; p < 0.001). CONCLUSION: Overweight and obese patients carry at least 20% and 50% higher odds of developing SSI after colorectal surgery compared to normal weight patients, respectively.

Investigation of p16 status, chemotherapy regimen, and other nutrition markers for predicting gastrostomy in patients with head and neck cancer.

BACKGROUND: The purpose of this study was to determine if p16 status, chemotherapy regimen, or other nutrition markers could improve protocol accuracy in predicting proactive gastrostomy in patients with head and neck cancer. METHODS: Patients who received curative treatment from July 2010 to June 2011 were included (n = 269). Associations among dependent variables (age, sex, tumor site, staging, treatment, p16 status, albumin, and Malnutrition Screening Tool [MST] score), the protocol risk rating, and requirement for proactive gastrostomy were examined. RESULTS: Current protocol correctly identified 81 of 88 high-risk patients (92%) for gastrostomy, but incorrectly classified 32 of 181 low-risk patients (18%). Analysis of low-risk patients with oral or oropharyngeal cancers, found p16-positive disease had 4.4 times greater odds (p = .049), and those at risk of malnutrition had 4.5 times greater odds (p = .019) of requiring gastrostomy. CONCLUSION: Malnutrition risk and p16 status could be used to identify further patients who may benefit from proactive gastrostomy. © 2017 Wiley Periodicals, Inc. Head Neck 39: 868-875, 2017.

Pre-oncall key conditions training for first-year radiology registrars.

INTRODUCTION: The Royal Australian and New Zealand College of Radiology (RANZCR) recognised the importance of experience in on-call and emergency radiology for first-year registrars by introducing 'Key conditions in Year 1 training'. This list of common radiological pathologies can help to focus preparations for new registrars as they prepare for after-hours duties. METHODS: The Royal Brisbane and Women's Hospital (RBWH) implemented a 12-week formal training programme, based on this curriculum, for new registrars prior to commencing after-hours work. Its impact was assessed by an image recognition and interpretation examination that was administered to registrars before and after training. RESULTS: Examination results revealed that the prescribed training programme significantly increased both the rate and accuracy of reporting, and that improvements in speed were not at the expense of accuracy. Furthermore, it showed that a 12-week training programme was able to improve novice radiology registrars' ability to detect radiological abnormalities above that of experienced emergency department clinicians. Performances of consultant radiologists were used as a 'gold standard' control. CONCLUSION: This research demonstrates the value of a formal training programme in preparing registrars for extended after-hours reporting duties and contributing to important departmental service provision.