We propose that a relative definition may provide a more clinically relevant method of defining NP. ( historical) A device for telling the time at night, rather like a sundial but read according to the stars. Conclusionįrom this study it is clear that more work needs to be done to arrive at a consensus for defining NP to enable accurate diagnosis and development of treatment pathways. nocturnal ( plural nocturnals ) A person or creature that is active at night. The definitions that showed the highest combined sensitivity and specificity were the functional definitions. While most people have nocturnal seizures while they are sleeping at night which is why they are called nocturnal or ‘nighttime’, if they fall asleep during the day they could. opening by day and closing by night, as certain flowers. Nocturnal seizures also called ‘asleep seizures’, are seizures that happen when someone is asleep. active by day, as certain birds and insects (opposed to nocturnal ). Sensitivity ranged from 43% (absolute) to 87% (relative). occurring in daily cycles: the apparent diurnal motion of celestial bodies. The most widely used and accepted is the ICS definition, which is based on the so-called NP index that is the proportion of urine produced at night over a 24-h period (nocturnal urine production NUP divided by 24-h urine production 1). nocturnal plants have flowers that open at night and close by day. Prevalence varied across the definitions from 21.5% (absolute definition) to 77% (relative definition). It’s all about definition The literature offers more than 15 definitions of NP. ResultsĬomplete bladder diaries were obtained from 1398 women, over 6 years, with a mean age of 57 years. Six different definitions were identified and were divided into “absolute,” “relative,” and “functional definitions.” Prevalence data were calculated and values generated for sensitivity, specificity, positive and negative predictive values when related to women voiding ≥ 2 times per night. Paroxysmal nocturnal dyspnea is a condition that causes a person to experience a sudden shortness of breath during sleep. This was a retrospective study of complete bladder diaries collected from women attending a tertiary Urogynaecology Unit. The aim of this study was to identify different definitions of NP and apply them to a population of women attending the Urogynaecology clinic. The ICS recognized that “excessive” is not clearly defined and that this needs to be highlighted in both clinical and research settings. Nocturnal polyuria (NP) is defined by the International Continence Society (ICS) as “excessive production of urine during the main sleep period” and is one of the main causes of nocturia.
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