Evaluation of a safe neutrophil count for cessation of intravenous antibiotics and early hospital discharge in stable, afebrile patients recovering after acute myeloid leukemia therapy or an autograft.

Currently there are no guidelines on a safe neutrophil count(ANC) for intravenous antibiotic(IVAB) cessation and hospital discharge in patients recovering after febrile neutropenia(FN). We assessed the safety in selected patients after recent FN of prompt IVAB cessation and hospital discharge. Safety was defined as no fever recurrence after IVAB cessation and readmission in the 10-days post-discharge for infections.A retrospective, single center audit conducted on 92 adult hematology patients admitted with de novo acute myeloid leukemia (AML) for intensive chemotherapy or for an autograft. Most admissions (n = 128/141;91%) were complicated by FN. Half of FN episodes ceased IVAB promptly with a median(range) ANC of 0.6(0.1-4.9x109/L); none of these episodes had recurrent fever requiring IVAB resumption. Prompt discharge occurred in 45% overall. Subsequent unplanned readmission rates were low.In afebrile, stable AML and autograft patients without medico-social barriers to discharge, IVAB can be ceased and hospital discharges safely done ≤24h of ANC ≥ 0.2x109/L.

Diabetes in ischaemic stroke in a regional Australian hospital: uncharted territory.

BACKGROUND: Stroke and diabetes mellitus (DM) are significant interrelated healthcare issues but there is a dearth of data on the prevalence of DM among Australia's regional stroke population. AIMS: We aimed to determine the prevalence of DM in stroke patients at a large regional centre, including subanalyses on stroke subtypes, glycaemic control and renal function in ischaemic stroke (IS). METHODS: We conducted a retrospective analysis of all patients (n = 323) with IS or transient ischaemic attack (TIA) admitted to Ballarat Base Hospital from January 2015 to December 2016. Demographic data, cardiovascular risk factors, aetiology/territory of IS, pre-morbid DM status, indicators of glycaemic control and renal impairment were recorded. RESULTS: DM was present in 28.5% of IS and TIA patients, including 4% being newly diagnosed. Among diabetic IS patients, 45.3% had poor glycaemic control (HbA1c ≥7.0%) while 16% had moderate to severe renal impairment (estimated glomerular filtration rate of <30). The majority of IS were partial anterior circulation stroke (53.4%) and cardioembolism was the commonest mechanism (43.5%). We found no significant association between DM and a specific stroke location or mechanism. CONCLUSIONS: Almost one-third of IS/TIA patients had DM, with a significant proportion showing poor glycaemic control. The DM prevalence in our cohort was comparable with reported rates from other developed countries. Although we found no association between DM and a particular stroke type or mechanism, it is likely a reflection of our cohort size. Our study demonstrated that DM, as a significant risk factor in IS, warrants early detection and better management strategies.

Prevalence and risk factors of ischaemic stroke in the young: a regional Australian perspective.

BACKGROUND: There is no universally accepted age cut-off for defining young strokes. AIMS: We aimed to determine, based on the profile of young stroke patients in our regional centre, an appropriate age cut-off for young strokes. METHODS: A retrospective analysis of all ischaemic stroke patients admitted to our centre from 2015 to 2017. We identified 391 ischaemic stroke patients; 30 patients between the ages of ≤50, 40 between 51-60 inclusive and 321 ≥ 61 years of age. We collected data on demographic profiles, risk factors and stroke classification using the Trial of Org 10 172 in Acute Stroke Treatment criteria. RESULTS: We found significant differences between the ≤50 and ≥61 age groups for most of the risk factors and similarities between the 51-60 inclusive and ≥ 61 age groups. At least one of the six risk factors assessed in the study was present in 86.7% of the youngest group, 97.5% of the intermediate age group and 97.2% in the oldest group. In terms of the mechanisms of stroke, the youngest and oldest age groups in our study differed in the prevalence of cryptogenic, cardioembolic and other causes of stroke. The middle and older age groups had similar mechanisms of stroke. CONCLUSIONS: The prevalence of vascular risk factors and mechanisms of stroke likewise differed significantly across age groups. This study suggests that 50 years is an appropriate age cut-off for defining young strokes and reinforces the importance of primary prevention in all age groups.

Pre-eclampsia is associated with altered expression of the renal sodium transporters NKCC2, NCC and ENaC in urinary extracellular vesicles.

Pre-eclampsia is a hypertensive disorder of pregnancy characterised by hypertension and sodium retention by the kidneys. To identify changes in sodium uptake proteins in the tubules of the distal nephron, we studied their expression in urinary extracellular vesicles or exosomes (uEVs). Urine was collected from women with pre-eclampsia or during normal pregnancy, and from healthy non-pregnant controls. uEVs were isolated by centrifugation and analyzed by Western blot. Expression, proteolytic cleavage and phosphorylation was determined by densitometric analysis normalized to the exosome marker CD9. Results showed a significant increase in phosphorylation of the activating S130 site in NKCC2, the drug target for frusemide, in women with pre-eclampsia compared with normal pregnant women. Phosphorylation of the activating sites T101/105 in NKCC2 was similar but the activating T60 site in NCC, the drug target for thiazide diuretics, showed significantly less phosphorylation in pre-eclampsia compared with normal pregnancy. Expression of the larger forms of the α subunit of ENaC, the drug target for amiloride, was significantly greater in pre-eclampsia, with more fragmentation of theγ subunit. The differences observed are predicted to increase the activity of NKCC2 and ENaC while reducing that of NCC. This will increase sodium reabsorption, and so contribute to hypertension in pre-eclampsia.

Long-term outcomes after severe drug overdose.

OBJECTIVE: The long-term outcomes of patients with drug overdose admitted to the intensive care unit compared with those admitted to general wards have not been assessed. We aimed to compare the recurrence of overdose, mortality after hospital discharge, cause of death and quality-of-life scores (using the EQ-5D questionnaire) between the ICU patients and general ward patients. METHODS: We performed a retrospective cohort study of 102 ICU patients with drug overdose and 102 matched general ward patients with drug overdose in a university-affiliated teaching hospital between 2009 and 2013. We undertook standardised follow-up of patients for recurrence of overdose, long-term mortality and quality-oflife assessment. RESULTS: At 4-year follow-up, 33.3% of ICU patients had experienced further self-harm attempts, compared with 36.3% of general ward patients (P = 0.66). Ten ICU patients (10%) and five general ward patients (5%) had died. Causes of death included hanging in three patients and drug overdose in another three. On multivariate regression analysis, previous overdose attempts significantly predicted future overdoses and self-harm (odds ratio, 2.34; 95% CI, 1.27-4.30; P = 0.006). Overall, 101 patients (49.5%) were lost to follow-up and eight (3.9%) refused participation. For those remaining, EQ-5D scores were low, especially in the dimensions of anxiety/depression, usual activities and pain/discomfort. CONCLUSIONS: ICU and general ward patients with overdose have similar, overwhelming prevalences of psychiatric disease, and similar outcome profiles. Such patients experience frequent overdoses and, despite being young, if admitted to the ICU, have a 10% 4-year mortality, with self-harm the dominant cause of death. Finally, among survivors who responded to the follow-up questionnaire, quality of life is poor.