scholarly journals Peculiarities of ultrasound diagnostics of paraurethral glands in women of fertile age

Pathologia ◽  
2021 ◽  
Vol 18 (2) ◽  
pp. 203-210
Author(s):  
V. M. Grygorenko ◽  
O. V. Romashchenko ◽  
V. V. Biloholovska ◽  
M. O. Kosiukhno ◽  
S. M. Melnykov ◽  
...  
Keyword(s):  
Distal Part ◽  
Resistance Index ◽  
Flow Mapping ◽  
Sexual Stimulation ◽  
Ultrasound Study ◽  
Ultrasound Diagnostics ◽  
Before And After ◽  
Doppler Indices ◽  
Colour Flow Mapping

Aim. Evaluation of ultrasound diagnostics of paraurethral glands considering their types of location in women of fertile age. Materials and methods. A gynaecological, sexological and ultrasound study of 94 women in the age from 24 to 42 (average age 31.01 ± 6.60) was carried out. Determination of paraurethral glands during ultrasound study was conducted in the format of grey scale (B-mode) using the Doppler colour flow mapping and evaluation of Doppler indices of paraurethral glands both before and after sexual stimu­lation. To optimize the paraurethral glands visual view at the beginning of examination urinary bladder was catheterized and a balloon, filled with gel, was inserted into vagina. Results. The front type of paraurethral glands location was found in the accumulation of glandular tissues in regard to the distal part of urethra in 67 (71.2 %) of the examined, back type – in the area of back urethra in 19 (20.2 %), diffuse type – along urethra in 7 (7.5 %) and absence – in 1 (1.1 %). Paraurethral glands were visualized in the form of clear isoechogenic oval formation with the following dimensions: length – 2.20 ± 0.60 cm, width – 1.52 ± 0.40 cm, thickness – 1.30 ± 0.30 cm, and volume – 4.75 ± 0.50 cm3. The diameter of vessels in the paraurethral glands area was between 0.17 cm and 0.21 cm in calm state and 0.39–0.41 cm – during stimulation. Maximum systolic speed of blood flow (Vps) in calm was 8.9–11.1 cm/sec, while in sexual stimulation it was 13.9–14.1 cm/sec, resistance index (IR) – 0.60–0.62 and 0.63–0.68, respectively, pulsation index (IP) – 1.22–1.44 and 1.61–1.72, respectively. Conclusions. The ultrasound study of vessels of paraurethral glands, when Doppler method is used according to the suggested methodology, gives the opportunity not only to identify its anatomical structure, but also to determine its types. In CDC the increase of diameter of vessels and the optimization of vessels image in the area of paraurethral glands in case of sexual stimulation were marked.

scholarly journals Doppler Flow Velocity Indices (RI, PI, S/D & PSV) of Fetal Middle Cerebral Artery in Normal Pregnancies: Correlation with Gestational Age of 20 to 40 Weeks

2012 ◽  
Vol 2 (2) ◽  
pp. 77-80
Author(s):  
Md Abu Taher ◽  
Nuzhat Tasmin ◽  
AS Mohiuddin ◽  
Md Mohit Ul Alam ◽  
Md Mofazzal Sharif ◽  
...  
Keyword(s):  
Middle Cerebral Artery ◽  
Flow Velocity ◽  
Cerebral Artery ◽  
Gestational Age ◽  
Resistance Index ◽  
Peak Systolic Velocity ◽  
Doppler Flow ◽  
Significant Difference ◽  
Before And After ◽  
Doppler Indices

This observational type of descriptive study was carried out in the Department of Radiology and Imaging, BIRDEM selecting 70 Bangladeshi pregnant babies with the aim to find out the normogram of foetal middle cerebral artery Doppler flow velocity indices and correlation between Doppler flow velocity indices [Resistance Index (RI), Pulsatility Index (PI), Systolic/Diastolic ratio (S/D) & Peak Systolic Velocity (PSV)] of foetal middle cerebral artery and gestational age in normal pregnancies of 20 to 40 weeks. It was observed that RI, PI and S/D were decreased with the advance of gestational age but PSV was increases with the advance of gestational age. Statistical analyses showed there were significant difference between mean PSV, RI and PI before and after 25 weeks of gestation. No significant difference was found between mean S/D before and after 25 weeks of gestation. It was observed from Correlation analysis between Doppler indices with independent gestational age that all the Doppler indices of foetal middle cerebra artery was positively correlated with the whole gestation period. The statistical analysis showed only PSV and RI were significantly correlated with the gestational age. Simple regression analysis between dependent Doppler index with independent gestational age before and after 25 weeks revealed that all the Doppler indices had positive relationship with the corresponding gestational age but relationship between PSV and PI (before 25 weeks) with their corresponding gestational ages were only statistically significant.DOI: http://dx.doi.org/10.3329/birdem.v2i2.12306 Birdem Med J 2012; 2(2) 77-80

The Effect of Antenatal Vaginal Progesterone Administration on Uterine, Umbilical, and Fetal Middle Cerebral Artery Doppler Flow: A Cohort Study

2019 ◽  
Vol 37 (05) ◽  
pp. 491-496
Author(s):  
Ahmed M. Maged ◽  
Amira Y. Shoab ◽  
Eman A. Hussein ◽  
Ahmed H. Alsawaf ◽  
Doaa S. Mahmoud ◽  
...  
Keyword(s):  
Cohort Study ◽  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
Uterine Artery ◽  
Umbilical Artery ◽  
Resistance Index ◽  
Doppler Measurement ◽  
Vaginal Progesterone ◽  
Before And After ◽  
Doppler Indices

Abstract Objective This study aimed to evaluate the effect of vaginal progesterone (P) administration during the second and third trimesters of pregnancy on Doppler velocimetry of uterine, umbilical, and middle cerebral vessels. Study Design A prospective cohort study conducted on 80 women at risk for preterm labor. Uterine artery, umbilical artery, and middle cerebral artery (MCA) Doppler indices were measured before and after 1 week of administration of 200 mg twice daily vaginal P. The primary outcome parameter was the change of MCA pulsatility index (PI) after P administration. Secondary outcomes included changes in uterine artery and umbilical artery Doppler measurement. Results There was no significant changes of umbilical artery resistance index (RI) (0.69 ± 0.049 vs. 0.68 ± 0.041), umbilical artery PI (1.14 ± 0.118 vs. 1.11 ± 0.116), uterine artery RI (0.66 ± 0.12 vs. 0.66 ± 0.107), uterine artery PI (1.00 ± 0.26 vs. 1.016 ± 0.24), and MCA PI (1.27 ± 0.18 vs. 1.26 ± 0.23) measurements before and after 1 week of P administration, respectively. Conclusion Administration of vaginal P has no significant effects on uterine artery, umbilical artery, and MCA Doppler indices.

The Plasmin Inhibitors of Plasma

1964 ◽  
Vol 12 (01) ◽  
pp. 119-125 ◽  
Author(s):  
Y Shamash ◽  
A Rimon
Keyword(s):  
Human Plasma ◽  
New Method ◽  
Normal Amount ◽  
Caseinolytic Activity ◽  
Before And After ◽  
Plasmin Inhibitors

SummaryA new method for the assay of plasmin inhibitors in human plasma is described. The method consists of determination of the caseinolytic activity of a standard plasmin solution before and after incubation with the inhibitor, with lysine added to the mixture as a stabilizer of plasmin. Using this method, it was found that plasma contains enough inhibitors to inactivate 30 caseinolytic units of plasmin, or 10 times the normal amount of plasminogen in human plasma.

FRACTIONAL DETERMINATIONS OF URINARY 17-KETOSTEROIDS IN HYPEREMESIS GRAVIDARUM

1962 ◽  
Vol 41 (1) ◽  
pp. 123-128 ◽  
Author(s):  
Pentti A. Järvinen ◽  
Sykkö Pesonen ◽  
Pirkko Väänänen
Keyword(s):  
Hyperemesis Gravidarum ◽  
First Trimester ◽  
Control Group ◽  
Before And After ◽  
Daily Urine ◽  
First Trimester Of Pregnancy ◽  
The Difference

ABSTRACT The fractional determination of 17-ketosteroids in the daily urine was performed in nine cases of hyperemesis gravidarum and in four control cases, in the first trimester of pregnancy both before and after corticotrophin administration. The excretion of total 17-KS is similar in the two groups. Only in the hyperemesis group does the excretion of total 17-KS increase significantly after corticotrophin administration. The fractional determination reveals no difference between the two groups of patients with regard to the values of the fractions U (unidentified 17-KS), A (androsterone) and Rest (11-oxygenated 17-KS). The excretion of dehydroepiandrosterone is significantly higher in the hyperemesis group than in the control group. The excretion of androstanolone seems to be lower in the hyperemesis group than in the control group, but the difference is not statistically significant. The differences in the correlation between dehydroepiandrosterone and androstanolone in the two groups is significant. The high excretion of dehydroepiandrosterone and low excretion of androstanolone in cases of hyperemesis gravidarum is a sign of adrenal dysfunction.

DETERMINATION OF BLOOD CORTICOIDS USING THE IN VITRO RESIN UPTAKE OF 3H-PREDNISOLONE

1968 ◽  
Vol 57 (1) ◽  
pp. 23-32 ◽  
Author(s):  
Hironori Nakajima ◽  
Mitsunori Murala ◽  
Masumitsu Nakata ◽  
Takeshi Naruse ◽  
Seiji Kubo
Keyword(s):  
Thyroid Function Test ◽  
Normal Subjects ◽  
Adrenal Function ◽  
Function Test ◽  
Before And After ◽  
Adrenal Response ◽  
Suppression Test

ABSTRACT The in vitro resin uptake of 3H-prednisolone was used for the determination of blood cortisol after addition of radioactive prednisolone followed by Amberlite CG 400 Type 1 to the test serum, and incubation of the mixture. The radioactivity of the supernatant was compared before and after the addition of the resin. The principle of this method is similar to that of the 131I-triiodothyronine resin uptake for the thyroid function test. The tests for the specificity, reproducibility and sensitivity gave satisfactory results. The mean basal value ± SD of the 3H-prednisolone resin uptake was 35.3 ± 9.2% in normal subjects, and 27.1 ± 4.8% in pregnant women. This method was valid in various adrenal function tests, i. e. the adrenal circadian rhythm, corticotrophin (ACTH) test, dexamethasone suppression test and the adrenal response to lysine-8-vasopressin. It proved to be a sensitive indicator of the adrenal function. These results suggest that this method should be useful for a routine adrenal function test.

scholarly journals Post-exercise pulsatility index indicates treatment effects in peripheral arterial occlusive disease (PAOD)

2021 ◽  
Author(s):  
Andrej Udelnow ◽  
Maria Hawemann ◽  
Ivo Buschmann ◽  
Frank Meyer ◽  
Zuhir Halloul
Keyword(s):  
Repeated Measures ◽  
Pulsatility Index ◽  
Treatment Effects ◽  
Resistance Index ◽  
Peak Systolic Velocity ◽  
Arterial Tree ◽  
Post Exercise ◽  
Diastolic Velocity ◽  
Before And After ◽  
Healthy Persons

Summary Background Hypothesis: Post-exercise measurements better discriminate PAOD-patients from healthy persons and they more sensitively detect hemodynamic improvements after treatment procedures than resting measurements. Methods A total of 19 healthy volunteers and 23 consecutive PAOD-patients underwent measurements of peak systolic velocity (PSV), end-diastolic velocity (EDV), minimal diastolic velocity (MDV), time-averaged maximum velocities (TAMAX), resistance index (RI) and pulsatility index (PI) before and after a standard exercise test (at 1, 2, 3, 4 and 5 min) before and after treatment (incl. epidemiological data, PAOD risk factors and comorbidities). Results In resting values, healthy persons and PAOD-patients did not differ significantly in any of the hemodynamic parameters. PSV increased after treatment in PAOD-patients by 5 cm/s (paired t‑test, p: 0.025); however, when the amplitude of autoregulatory changes related to the resting values were calculated, PAOD-patients showed clearly less hemodynamic changes after exercise than healthy persons (p: 0.04; 0.002; <0.001 for PSV, TAMAX and PI, resp.). The time course after exercise was compared by repeated measures of ANOVA. Healthy persons differed significantly in PI, RI and PSV from PAOD patients before and after treatment (p<0.001 each). The PAOD-patients revealed a significantly improved PI after treatment (p: 0.042). The only factor contributing significantly to PI independently from grouping was direct arterial vascularization as compared to discontinuous effects by an obstructed arterial tree. Conclusion Healthy persons cannot be well differentiated from PAOD-patients solely by hemodynamics at rest but by characteristic changes after standard exercise. Treatment effects are reflected by higher PI-values after exercise.

Method for the simultaneous quantification of n-hexane metabolites: application to n-hexane metabolism determination

1996 ◽  
Vol 15 (6) ◽  
pp. 497-503 ◽  
Author(s):  
T. Soriano ◽  
M. Menéndez ◽  
P. Sanz ◽  
M. Repetto
Keyword(s):  
Similar Pattern ◽  
Analytical Procedure ◽  
Daily Basis ◽  
Practical Application ◽  
Simultaneous Quantification ◽  
Exposed Workers ◽  
Before And After ◽  
Time Requirements ◽  
The Difference

1 The described analytical procedure permits the simultaneous determination of the main n-hexane meta bolites in urine. 2-Hexanone, 2-hexanol, 2, 5-hexanediol and 2, 5-hexanedione, were chosen to dose the rats used in this study. All urine samples were collected and analysed on a daily basis, before and after acidic hydrolysis (pH 0.1) by GC/MS. 2-Hexanone, 2, 5-dimethylfurane, γ-valerolac tone and 2, 5-hexanedione were determined before hydro lysis ; 2-hexanol and 2, 5-hexanediol, after hydrolysis; and 5-hydroxy-2-hexanone and 4, 5-dihydroxy-2-hexanone were calculated by the difference between γ-valerolactone and 2, 5-hexanedione with and without hydrolysis, respectively. 2 A metabolic scheme was proposed reflecting the biotransformations undergone by the four compounds assayed. We consider 2, 5-dimethylfurane as a 'true metabolite' because the quantities detected were always greater before hydrolysis. 3 It has been reported that human and rat n-hexane metabolism follow a similar pattern. Therefore, as a practical application and without increasing either sample or time requirements, the simultaneous quantifi cation of the different metabolites and their excretion profile could provide better information about the metabolic situation of exposed workers than the determi nation of 2, 5-hexanedione alone. According to our experimental results, 4, 5-dihydroxy-2-hexanone itself would be a good toxicity indicator.

Sign in / Sign up

Export Citation Format

Share Document