The Benefits of High-Intensity Interval Training on Cognition and Blood Pressure in Older Adults With Hypertension and Subjective Cognitive Decline: Results From the Heart & Mind Study

Background: The impact of exercise on cognition in older adults with hypertension and subjective cognitive decline (SCD) is unclear.

Objectives: We determined the influence of high-intensity interval training (HIIT) combined with mind-motor training on cognition and systolic blood pressure (BP) in older adults with hypertension and SCD.

Methods: We randomized 128 community-dwelling older adults [age mean (SD): 71.1 (6.7), 47.7% females] with history of hypertension and SCD to either HIIT or a moderate-intensity continuous training (MCT) group. Both groups received 15 min of mind-motor training followed by 45 min of either HIIT or MCT. Participants exercised in total 60 min/day, 3 days/week for 6 months. We assessed changes in global cognitive functioning (GCF), Trail-Making Test (TMT), systolic and diastolic BP, and cardiorespiratory fitness.

Results: Participants in both groups improved diastolic BP [F_{(1, 87.32)} = 4.392, p = 0.039], with greatest effect within the HIIT group [estimated mean change (95% CI): −2.64 mmHg, (−4.79 to −0.48), p = 0.017], but no between-group differences were noted (p = 0.17). Both groups also improved cardiorespiratory fitness [F_{(1, 69)} = 34.795, p < 0.001], and TMT A [F_{(1, 81.51)} = 26.871, p < 0.001] and B [F_{(1, 79.49)} = 23.107, p < 0.001]. There were, however, no within- or between-group differences in GCF and systolic BP at follow-up.

Conclusion: Despite improvements in cardiorespiratory fitness, exercise of high- or moderate-intensity, combined with mind-motor training, did not improve GCF or systolic BP in individuals with hypertension and SCD.

Clinical Trial Registration:ClinicalTrials.gov (NCT03545958).

Spino-renal fistula due to gunshot injury

A 22-year-old female patient was treated for spino-renal fistula as a result of a high-velocity gunshot injury to her abdomen. The patient presented with meningeal signs, a headache and right monoparesis. A CT scan of her abdomen revealed a leak of contrast from the right kidney into the perirenal space and tracking further into the thecal sac. An MRI scan showed a stable fracture of L3 with slight compression of the thecal sac and features of cord contusion caused by the shockwave of the bullet. To the best of our knowledge a spino-renal fistula of traumatic origin has not previously been reported in the English language literature.

Diagnostic accuracy of flow rate testing in urology

OBJECTIVE

To highlight the importance of methodological standards in diagnostic testing in urology, by reviewing the extent of compliance with these standards in reports of published evaluations.

METHODS

Sixteen papers evaluating the diagnostic accuracy of urinary flow-rate testing were independently assessed by two reviewers for compliance with the following methodological standards: specification of study population, analysis of pertinent subgroups, avoidance of evaluation (verification) bias, avoidance of review bias, reporting of precision of estimates of test accuracy, indeterminate test results, and test reproducibility. Compliance with each standard was expressed as a percentage with a 95% confidence interval.

RESULTS

Compliance ranged from just 12.5 (1.5-38)% for reporting of test reproducibility to 87.5 (62-98)% for specification of the study population. Only nine of the 16 evaluations complied with four or more of the methodological standards; one paper did not comply with any.

CONCLUSIONS

This evaluation of urological flow-rate testing show poor compliance with accepted methodological standards. The study design, reporting and evaluation of new diagnostic tests can be improved by adhering to these standards. Policy-makers, purchasers and providers would be less likely to adopt new diagnostic tests inappropriately if they were to appraise published evaluations against the standards. A reduction in the inappropriate use of tests would in turn lead to more cost-effective use of healthcare resources.

Novel PDE5 inhibitors for the treatment of male erectile dysfunction

Erectile dysfunction (ED) affects the lives of approximately 150 million men worldwide. ED may be a cause of male sub-fertility in a significant proportion of patients. There is now an expanding armamentarium for the management of ED, including oral agents such as phosphodiesterase type 5 (PDE5) inhibitors. PDE5 inhibitors may also be useful in situations of temporary ED in couples undergoing IVF. Two novel PDE5 inhibitors have been commercially launched in the European Union in the first quarter of 2003. This article reviews the pharmacology and clinical efficacy of these new agents and their potential role in treating patients with male sub-fertility.

Can shoe size predict penile length?

OBJECTIVE

To establish if the 'myth' about whether the size of a man's penis can be estimated from his shoe size has any basis, in fact.

SUBJECTS AND METHODS

Two urologists measured the stretched penile length of 104 men in a prospective study and related this to their shoe size.

RESULTS

The median stretched penile length for the sampled population was 13 cm and the median UK shoe size was 9 (European 43). There was no statistically significant correlation between shoe size and stretched penile length.

CONCLUSION

The supposed association of penile length and shoe size has no scientific basis.

An unusual case of duplex ureteropyelocystoplasty

Ileocystoplasty is associated with electrolyte disturbances, mucus production and gastrointestinal tract disruption. An unusual case is presented of duplex ureteropyelocystoplasty with an excellent postoperative result. This technique avoids the complications associated with the use of ileum in the urinary tract.

Hospital admissions of children from the emergency department: are decisions regarding children on public assistance different?

OBJECTIVE

To better understand the variables that influence the physician's decision to admit children from the emergency department (ED) for nonmedical problems.

METHODS

A multicenter prospective questionnaire survey over a three-month study period. For all admitted children, the emergency physician completed a survey which recorded demographic data, insurance status, primary care provider (PCP), admitting diagnoses, and reason for admission. The reason for admission was noted as strictly medical or nonmedical (either an illness that could have been managed on an ambulatory care basis or a "psychosocial" admission). Group differences were analyzed by t test, chi 2, or logistic regression analysis where appropriate.

RESULTS

There were 4318 ED admissions at five institutions of which 185 (4%) were judged to be nonmedical. No age or gender differences were found between the medical and nonmedical admission populations. Using logistic regression, adjusted odds ratios for nonmedical admissions were as follows: Medicaid insurance (2.34, 95% CI = 1.61-3.41), clinic-based primary care provider (1.54, 95% CI = 1.06-2.23), no or unknown primary care provider (2.40, 95% CI = 1.52-3.78), and after hours [eg, 5 PM to 8 AM] admissions (1.86, 95% CI = 1.31-2.63).

CONCLUSIONS

These data suggest that children with lower socioeconomic status and limited primary care resources are more likely to be admitted from the ED for nonmedical reasons than children with commercial insurance resources or a private physician.

Urinary bladder function and drug development

Disorders of the bladder are extremely common and are becoming more so in an ageing population. Recently, our understanding of lower urinary tract physiology and pathology has also increased. Here, Douglas Ferguson and Nim Christopher summarize this new knowledge of lower urinary tract function, the changes in innervation that occur with age and the common disease states, and discuss how it is being used to develop new drug treatments for bladder disorders.

Comparative assessment of phase contrast microscopy and Coulter counter measurements in localising the site of haematuria

Haematuria is a common diagnostic problem in clinical practice and is seen in a large number of renal, urological and systemic disorders. The routine use of dipstick methods has increased the frequency of detection of microscopic haematuria. It is desirable to develop a simple, non-invasive, easily reproducible, quantitative technique that would help to determine the site of bleeding and thereby direct the patient either to the nephrologist or to the urologist. This study compares the accuracy of phase contrast microscopy with Coulter counter measurement of red cell distribution volumes as a means of distinguishing glomerular haematuria from non-glomerular haematuria. Of 20 patients with biopsy-proven glomerulonephritis, 13 (65%) were correctly identified by phase contrast microscopy and 19 (95%) by the Coulter counter method. In 18 patients with pathological conditions affecting the lower urinary tract phase contrast microscopy was correct in 6 (33%) and Coulter counter measurement in 17 (94%). Coulter counter measurement is the simpler and more accurate method of screening for the source of haematuria, but is inaccurate when the red cell count in the urine is less than 0.02 x 10(12).

Then and now: one nurse's view

Nursing is a profession rich in history and tradition. Old fashioned virtues of caring and service are only a part of the role of the 90's nurse. One nurse from The Children's Hospital of Alabama describes the evolution of the new decade nurse who has emerged with high-tech skills, is corporate-minded and research-oriented.