scholarly journals Evaluation of radial and ulnar artery blood flow after radial artery decannulation using colour Doppler ultrasound

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Li-jia Liu ◽  
Hong-mei Zhou ◽  
Huan-liang Tang ◽  
Qing-he Zhou
Keyword(s):  
Blood Flow ◽  
Doppler Ultrasound ◽  
Radial Artery ◽  
Repeated Measures ◽  
Peak Systolic Velocity ◽  
Ulnar Artery ◽  
Artery Blood Flow ◽  
Colour Doppler ◽  
Female Sex ◽  
Colour Doppler Ultrasound

Abstract Background There is a lack of reports in the literature regarding changes in radial artery blood flow after decannulation. The objective of this study was to investigate changes in radial and ulnar artery blood flow after radial artery decannulation using Doppler ultrasound and to explore the factors that influence radial artery blood flow recovery. Methods In current observational study, we used colour Doppler ultrasound to measure the cross-sectional area of the radial (SR) and ulnar artery (SU) and peak systolic velocity of the radial (PSVR) and ulnar artery (PSVU) for both hands at four time points in patients with radial artery cannulation: pre-cannulation (T0), 30 min after decannulation (T1), 24 h after decannulation (T2), and 7 days after decannulation (T3). Repeated measures analysis of variance and logistic regression analysis were performed to analyse the data. Results Overall, 120 patients were included in the present study. We obtained the following results on the side ipsilateral to the cannulation: compared with T0, the ratio of PSVU/PSVR increased significantly at T1 and T2 (p < 0.01); compared with T1, the ratio of PSVU/PSVR decreased significantly at T2 and T3 (p < 0.01); compared with T2, the ratio of PSVU/PSVR decreased significantly at T3 (p < 0.01). Female sex (OR, 2.76; 95% CI, 1.01–7.57; p = 0.048) and local hematoma (OR 3.04 [1.12–8.25]; p = 0.029) were factors that were significantly associated with the recovery of radial artery blood flow 7 days after decannulation. Conclusions There was a compensatory increase in blood flow in the ulnar artery after ipsilateral radial artery decannulation. Female sex and local hematoma formation are factors that may affect the recovery of radial artery blood flow 7 days after catheter removal.

scholarly journals Colour Doppler ultrasound hemodynamic characteristics of patients with priapism before and after therapeutic interventions

2013 ◽  
Vol 3 (4) ◽  
pp. 304 ◽  
Author(s):  
Rei K. Chiou ◽  
Himanshu Aggarwal ◽  
Christopher R. Chiou ◽  
Fleur Broughton ◽  
Susan Liu
Keyword(s):  
Nous Avons ◽  
Doppler Ultrasound ◽  
Therapeutic Intervention ◽  
Peak Systolic Velocity ◽  
Arterial Flow ◽  
Background Information ◽  
Colour Doppler ◽  
Arterial Blood ◽  
Colour Doppler Ultrasound ◽  
Débit Sanguin

Background: Information in the literature on the hemodynamic characteristicsof priapism, especially after therapeutic intervention, isvery limited. We analyzed our colour Doppler ultrasound (CDU)studies performed for patients with various durations of priapismbefore and after therapeutic intervention.Methods: We reviewed 52 CDU studies for 24 patients with priapismbefore and after treatment for the period 1997–2007. Theduration of priapism ranged from 4 hours to 8 days. We performed17 CDU studies in 8 patients who presented with a duration ofpriapism of 7 hours or less, 9 studies in 4 patients who presentedwith duration of priapism of more than 20 hours, 23 studies in11 patients referred to us after they had failed prior therapeuticintervention at other institutions and 3 studies in 1 patient withpriapism related to perineal trauma.Results: Among the 8 patients who presented with a duration ofpriapism of 7 hours or less, CDU studies on presentation showeddetectible cavernosal arterial flow in all except 1 study. Amongthe 4 patients who presented with a duration of more than 20 hours,the studies showed no detectible cavernosal arterial blood flow.We repeated CDU studies after therapeutic intervention, and theyshowed restoration of cavernosal arterial flow with relief of venoocclusivestatus. Among the 11 patients in whom prior treatmentsfailed before they were referred to us, CDU studies performed onpresentation showed no detectible cavernosal arterial flow in 10of the 11 patients. We performed 12 CDU studies in 8 patientsafter placing a penile cavernosa-dorsal vein (CD) shunt. Weobserved the presence of blood flow in the CD shunt, indicatingits patency in all 8 patients. Some patients showed high cavernosalarterial flow (peak systolic velocity [PSV] up to 27.6 cm/s) aftersurgery. These patients appeared to have residual priapism of primarilyarteriogenic status that improved after observation.Conclusion: After therapeutic intervention, CDU study is useful toassess the relief of arteriogenic and veno-occlusive status and thedecision for further treatment.Contexte : La littérature offre très peu de renseignements sur lescaractéristiques hémodynamiques du priapisme, en particulieraprès une intervention thérapeutique. Nous avons analysé les donnéesprovenant d’examens par échographie Doppler en couleurs(ÉDC) menés avant et après une intervention thérapeutique chezdes patients atteints de priapisme de durée variable.Méthodes : Nous avons passé en revue les données de 52 examenspar échographie Doppler en couleurs effectués avant et après letraitement de 24 patients atteints de priapisme entre 1997 et 2007.La durée du priapisme variait entre 4 heures et 8 jours. Dix-septÉDC ont été effectuées chez 8 patients ayant présenté un priapismed’une durée maximale de 7 heures; 9 ÉDC ont été effectuées chez4 patients ayant présenté un priapisme d’une durée de plus de20 heures. Finalement, 23 ÉDC ont été effectuées chez 11 patientsqui nous avaient été dirigés en raison de l’échec de l’interventionthérapeutique antérieure dans d’autres établissements. Trois ÉDCont été menées chez un patient atteint d’un priapisme relié à untraumatisme périnéal.Résultats : Chez les 8 patients dont le priapisme avait eu une duréemaximale de 7 heures, les ÉDC ont montré au départ un débit sanguinperceptible dans l’artère caverneuse dans tous les cas sauf un. Surles 4 patients dont le priapisme avait duré plus de 20 heures, les examenspar ÉDC n’ont montré aucun débit sanguin dans l’artère caverneuseau départ. Les ÉDC ont été répétées après l’interventionthérapeutique et ont permis d’observer un retour du débit sanguindans l’artère caverneuse avec soulagement de l’occlusion veineuse.Chez les 11 patients qui n’avaient pas répondu aux traitementsantérieurs avant de nous consulter, les ÉDC effectuées au départ n’ontmontré aucun débit sanguin perceptible dans l’artère caverneusedans 10 cas. Nous avons effectué 12 ÉDC chez 8 patients après unedérivation veineuse dorso-caverneuse et avons observé la présenced’un débit sanguin dans la dérivation, montrant sa perméabilité chezles 8 patients. Chez certains patients, on a noté un débit sanguinélevé dans l’artère caverneuse (vitesse systolique maximale de27,6 cm/sec) après la chirurgie. Ces patients semblaient présenter unpriapisme résiduel artériogène primaire qui s’est résorbé par la suite.Conclusion : Après une intervention thérapeutique, les examens parÉDC permettent d’évaluer le soulagement des troubles artériogèneset/ou veino-occlusifs et d’orienter le traitement subséquent.

Analysis of Clinical Diagnostic Value of High Frequency Colour Doppler Ultrasound for Abdominal Wall Endometriosis

2021 ◽  
Vol 11 (3) ◽  
pp. 1004-1012
Author(s):  
Xiuchun Zhang
Keyword(s):  
Blood Flow ◽  
Abdominal Wall ◽  
Doppler Ultrasound ◽  
High Frequency ◽  
Subcutaneous Fat ◽  
Diagnostic Methods ◽  
Surrounding Tissue ◽  
Colour Doppler ◽  
Abdominal Wall Endometriosis ◽  
Colour Doppler Ultrasound

Abdominal wall endometriosis is a common endometriosis, which is located outside the endometrium, such as the myometrium or subcutaneous fat layer of the abdominal wall, forming a mass, active and infiltrating into the surrounding tissue, accompanied by menstrual pain, and seriously affecting the quality of life of patients. With the increasing operation of caesarean section and other traumatic operations, the incidence rate of abdominal wall endometriosis is increasing. Because of the variety of clinical manifestations of abdominal wall endometriosis, there are many kinds of diagnostic methods. Choosing the appropriate diagnostic methods to confirm abdominal wall endometriosis has become the primary work of diagnosis and treatment of abdominal wall endometriosis. This paper discusses the clinical value of high frequency colour doppler ultrasound in the diagnosis of abdominal wall endometriosis. Compared with the diagnosis of ordinary ultrasound and high frequency colour doppler ultrasound, the location, shape, size, boundary, internal echo, blood flow velocity, blood flow resistance and other parameters of the mass in the focus were observed. It is proved that the application of high-frequency colour doppler ultrasound can greatly improve the ultrasonic diagnosis rate of abdominal wall endometriosis, and it is non-invasive, radiation-free, low price, easy for patients to accept. It provides a high value clinical diagnosis basis for the early detection and treatment of abdominal wall endometriosis.

scholarly journals A cooling cuff compared to a moist ice pack on radial artery blood flow and lumen diameter in healthy participants

2018 ◽  
Vol 23 ◽  
Author(s):  
Joshua Gernetzky ◽  
Laura O'Connor ◽  
Desiree Varatharajullu ◽  
Zombuso C. Dludla
Keyword(s):  
Blood Flow ◽  
Radial Artery ◽  
Repeated Measures ◽  
Acute Stage ◽  
Lumen Diameter ◽  
P Value ◽  
Artery Blood Flow ◽  
Post Intervention ◽  
Post Test ◽  
Ice Pack

Background: Cryotherapy is a favourable treatment for post-traumatic injuries in the acute stage because of its effect on inflammation and pain. A novel cooling cuff, which can be easily used and can be wrapped around the injured area that does not require freezing, has been developed. Its efficacy compared to traditional ice therapy has not been established.Aim: To establish the effect of a cooling cuff on radial artery blood flow and lumen diameter compared to moist ice.Setting: Chiropractic clinic and radiographic laboratory.Method: A controlled laboratory pre-test post-test investigation assessed asymptomatic participants who were randomly allocated into a moist ice pack (n = 22) or the cooling cuff (n = 21) group. The intervention was placed on the participants forearm over the radial artery for 15 min. Data was collected by a qualified diagnostic radiographer using Doppler ultrasound. Data was analysed, using repeated measures analysis of variance to assess changes in blood flow and lumen diameter pre- and post-intervention. A p-value of less than 0.05 was considered significant.Results: Both groups showed a significant decrease in radial artery blood flow (p < 0.001) after 15 min with no significant changes being observed in diameter size. No significant differences were observed between the groups for radial artery blood flow or diameter.Conclusion: The cooling cuff resulted in a similar effect on radial artery blood flow and lumen diameter as moist ice, indicating that patients and practitioners may utilise the cooling cuff in the acute phases of an injury to alter blood flow.

100 Relationship between corpus luteum blood flow evaluated via colour Doppler ultrasound and pregnancy rate in bovine embryo transfer recipients

2020 ◽  
Vol 32 (2) ◽  
pp. 176
Author(s):  
M. K. Sermersheim ◽  
B. R. Lindsey ◽  
L. M. Naves ◽  
M. Rubessa ◽  
M. B. Wheeler
Keyword(s):  
Blood Flow ◽  
Medical Imaging ◽  
Corpus Luteum ◽  
Pregnancy Rate ◽  
Embryo Transfer ◽  
Doppler Ultrasound ◽  
Doppler Imaging ◽  
Bovine Embryo ◽  
Colour Doppler ◽  
Colour Doppler Ultrasound

The advent of colour Doppler ultrasound has allowed evaluation of blood flow to bodily tissues. This novel technology is being tested as a tool to improve efficiency in a variety of livestock reproduction programs. The objective of the present study was to evaluate the relationship between blood flow to the ovarian corpus luteum (CL), imaged via colour Doppler ultrasound, and pregnancy rate in crossbred dairy recipients for embryo transfer (ET). Oestrous cycles of Bos indicus×Bos taurus dairy heifers (n=90, 16-24 months of age) were synchronized for embryo transfer on Days 7-8. Immediately before ET, heifers were palpated for the presence of ovarian CL and CL papillae. Presence of CL, CL papillae, and CL lacunae were confirmed via transrectal B-mode ultrasound (Ibex EVO I, E. I. Medical Imaging). Transrectal colour Doppler ultrasound (Ibex EVO I, E. I. Medical Imaging) was used to evaluate blood flow to the CL. Invitro-produced (IVP) blastocysts (qualities I and II) were transferred to the uterine horn ipsilateral to the CL. All palpation, imaging, and embryo transfer was performed by a single technician. Pregnancy was determined via transrectal ultrasound 24-32 days post-embryo transfer (31-39 days of embryo age). Blood flow to the CL was split into three categories: high, median, and low. Presence or absence of two additional CL structures, CL papillae and lacunae, were recorded. Fisher's exact test was used to evaluate data. Statistical differences were considered significant at P&lt;0.05. The overall pregnancy rate was determined to be 40%, 36 out of 90. Pregnancy rates were similar in high (33.9%, 20 of 59), median (59.09%, 13 of 22), and low (33.33%, 3 of 9) blood flow categories. Consistent with previous studies, absence of CL papillae and presence of CL lacunae at the time of ET did not affect pregnancy rate. Doppler blood flow, papillae, and lacunae were also evaluated together in each possible combination. Only one outlier was present; all other differences were not significant. The highest pregnancy rate (66.67%, 10 of 15) was observed in recipients with CLs with median Doppler blood flow, a palpable CL papillae, and no CL lacunae. A larger sample size is required to determine the accuracy of this measurement. In conclusion, recipients with high to low CL blood flow are suitable for IVP embryo transfer programs. Alone, colour Doppler imaging of the CL does not predict pregnancy rate.

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