scholarly journals Peak flow rate records in the diagnosis of occupational asthma due to colophony.

Thorax ◽  
1979 ◽  
Vol 34 (3) ◽  
pp. 308-316 ◽  
Author(s):  
P S Burge ◽  
I M O'Brien ◽  
M G Harries
Keyword(s):  
Flow Rate ◽  
Occupational Asthma ◽  
Peak Flow ◽  
Peak Flow Rate

scholarly journals Peak flow rate records in the diagnosis of occupational asthma due to isocyanates.

Thorax ◽  
1979 ◽  
Vol 34 (3) ◽  
pp. 317-323 ◽  
Author(s):  
P S Burge ◽  
I M O'Brien ◽  
M G Harries
Keyword(s):  
Flow Rate ◽  
Occupational Asthma ◽  
Peak Flow ◽  
Peak Flow Rate

scholarly journals Correlation of intravesical prostatic protrusion with severity of lower urinary symptoms among patients with benign prostatic hyperplasia

2021 ◽  
Vol 27 (1) ◽  
Author(s):  
Babatunde K. Hamza ◽  
Muhammed Ahmed ◽  
Ahmad Bello ◽  
Musliu Adetola Tolani ◽  
Mudi Awaisu ◽  
...  
Keyword(s):  
Flow Rate ◽  
Bladder Outlet Obstruction ◽  
Peak Flow ◽  
Prostate Volume ◽  
Outlet Obstruction ◽  
Peak Flow Rate ◽  
The Mean ◽  
Benign Prostate ◽  
Intravesical Prostatic Protrusion ◽  
Lower Urinary

Abstract Background Benign prostate hyperplasia (BPH) is characterized by an increase in the number of epithelial and stromal cells in the periurethral area of the prostate. Lower urinary tract symptoms (LUTS) often develop as a manifestation of bladder outlet obstruction (BOO) due to benign prostate enlargement. When the prostate enlarges, protrusion into the bladder often occurs as a result of morphological changes of the gland. Prostatic protrusion into the bladder can be measured with ultrasound as intravesical prostatic protrusion (IPP). There are studies that have shown IPP as a reliable predictor of bladder obstruction index (BOOI) as measured by pressure flow studies. IPP is thereby reliable in assessing the severity of BOO in patients with BPH. The severity of symptoms in patients with BPH can be assessed through several scoring systems. The most widely used symptoms scoring system is the International Prostate Symptoms Score (IPSS). The aim of this study is to determine the correlation of IPP with IPSS in men with BPH at our facility. Methods The study was a cross-sectional observational study that was conducted at the Division of Urology, Department of Surgery, in our facility. The study was conducted on patients greater than 50 years LUTS and an enlarged prostate on digital rectal examination and/or ultrasound. All consenting patients were assessed with the International Prostate Symptoms Score (IPSS) questionnaire, following which an abdominal ultrasound was done to measure the intravesical prostatic protrusion (IPP), prostate volume (PV) and post-void residual (PVR) urine. All the patients had uroflowmetry, and the peak flow rate was determined. The data obtained were entered into a proforma. The results were analyzed using Statistical Package for Social Sciences (SPSS) software package version 20. Results A total of 167 patients were seen during the study period. The mean age was 63.7 ± 8.9 years, with a range of 45–90 years. The mean IPSS was 18.24 ± 6.93, with a range of 5–35. There were severe symptoms in 49.1%, while 43.1% had moderate symptoms and 7.8% had mild symptoms. The overall mean IPP was 10.3 ± 8 mm. Sixty-two patients (37.1%) had grade I IPP, 21 patients (12.6%) had grade II IPP and 84 patients (50.3%) had grade III IPP. The mean prostate volume and peak flow rate were 64 g ± 34.7 and 11.6 ml/s ± 5.4, respectively. The median PVR was 45 ml with a range of 0–400 ml. There was a significant positive correlation between the IPP and IPSS (P = 0.001). IPP also had a significant positive correlation with prostate volume and post-void residual and a significant negative correlation with the peak flow rate (P < 0.01). Conclusion Intravesical prostatic protrusion is a reliable predictor of severity of LUTS as measured by IPSS, and it also shows good correlation with other surrogates of bladder outlet obstruction.

Decreasing peak flow rate with a new bag-valve-mask device: effects on respiratory mechanics, and gas distribution in a bench model of an unprotected airway

Resuscitation ◽  
2003 ◽  
Vol 57 (2) ◽  
pp. 193-199 ◽  
Author(s):  
Horst G. Wagner-Berger ◽  
Volker Wenzel ◽  
Angelika Stallinger ◽  
Wolfgang G. Voelckel ◽  
Klaus Rheinberger ◽  
...  
Keyword(s):  
Flow Rate ◽  
Respiratory Mechanics ◽  
Peak Flow ◽  
Peak Flow Rate ◽  
Gas Distribution ◽  
Unprotected Airway ◽  
Bench Model

A Method of Measuring the Peak Flow-Rate and the Regurgitant Volume of Regurgitation

1990 ◽  
pp. 125-129
Author(s):  
Motoaki Sugawara ◽  
Akio Hirai ◽  
Yasutsugu Seo ◽  
Yasuo Miyajima ◽  
Takanobu Uchibori
Keyword(s):  
Flow Rate ◽  
Peak Flow ◽  
Peak Flow Rate ◽  
Regurgitant Volume

scholarly journals Peak flow rate records in surveys: reproducibility of observers' reports.

Thorax ◽  
1984 ◽  
Vol 39 (11) ◽  
pp. 828-832 ◽  
Author(s):  
K M Venables ◽  
P S Burge ◽  
A G Davison ◽  
A J Newman Taylor
Keyword(s):  
Flow Rate ◽  
Peak Flow ◽  
Peak Flow Rate

Peak Flow Rate During Induced Cough: A Predictor of Successful Decannulation of a Tracheotomy Tube in Neurosurgical Patients

2010 ◽  
Vol 19 (3) ◽  
pp. 278-284 ◽  
Author(s):  
Linda Y. Y. Chan ◽  
Alice Y. M. Jones ◽  
Raymond C. K. Chung ◽  
K. N. Hung
Keyword(s):  
Flow Rate ◽  
Operating Characteristic ◽  
Peak Flow ◽  
Characteristic Curve ◽  
Peak Flow Rate ◽  
Tracheotomy Tube ◽  
Optimal Cutoff ◽  
Neurosurgical Patients ◽  
Optimal Cutoff Point ◽  
The Relationship

Background An accurate predictor of successful decannulation in neurosurgical patients that indicates the best time for tracheotomy decannulation would minimize the risks of continued cannulation and unsuccessful decannulation. Objective To determine whether the peak flow rate during induced cough is an appropriate predictor of successful decannulation. Methods A total of 32 neurosurgical patients with a tracheotomy were enrolled. The highest peak expiratory flow rate during 3 induced coughs, the total volume of tracheal secretions collected in 6 hours, and scores on the Glasgow Coma Scale were recorded. Logistic regression analysis was applied to determine the relationship between these variables and successful decannulation (reintubation not required within 72 hours). Results Decannulation was attempted in 23 of 32 patients. The remaining 9 patients were considered clinically inappropriate for the procedure. Of the 23 patients decannulated, 2 required reinsertion of the tracheotomy tube. Analysis revealed that peak flow rate during induced cough (odds ratio, 1.12; 95% confidence interval, 1.02–1.23) was independently associated with successful decannulation (accuracy, 75%; sensitivity, 85.7%; specificity, 54.5%). The receiver operating characteristic curve indicated an optimal cutoff point of 29 L/min. Conclusion Measurement of peak flow rate during induced cough is a simple and reproducible intervention that improves predictability of successful decannulation in patients with tracheotomy.

A note on the relationship between the rate of machine-milking and milk production of Ayrshire heifers

1971 ◽  
Vol 13 (2) ◽  
pp. 353-356 ◽  
Author(s):  
M. E. Castle ◽  
R. Henderson
Keyword(s):  
Milk Production ◽  
Flow Rate ◽  
Peak Flow ◽  
Milk Composition ◽  
Early Lactation ◽  
Peak Flow Rate ◽  
Machine Milking ◽  
The Mean ◽  
The Relationship ◽  
Direct Measures

SUMMARYRecords of milking rate, milk yield and milk composition were collected over 12 yr from 123 Ayrshire heifers in their first lactation in one herd. Three direct measures of milking rate, i.e. peak flow rate, machine rate and overall rate were closely correlated and each was also correlated with total lactation yield of milk. Milking rate accounted for only a very small part of the variation in fat and total solids percentages. The mean yield of milk per milking in early lactation was a better predictor of total lactation yield than was milking rate but, among animals giving the same early lactation yield of milk, the faster milkers gave higher lactation yields than the slower milkers.

scholarly journals Peak flow rate and death due to coronary heart disease: 30-year results from the Northwick Park Heart cohort study

Open Heart ◽  
2014 ◽  
Vol 1 (1) ◽  
pp. e000164 ◽  
Author(s):  
Tim C Clayton ◽  
Tom W Meade ◽  
Elizabeth L Turner ◽  
Bianca L De Stavola
Keyword(s):  
Coronary Heart Disease ◽  
Cohort Study ◽  
Heart Disease ◽  
Flow Rate ◽  
Peak Flow ◽  
Peak Flow Rate
Sign in / Sign up

Export Citation Format

Share Document