scholarly journals Pulsation of anastomotic vortex veins in pachychoroid spectrum diseases

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Hidetaka Matsumoto ◽  
Junki Hoshino ◽  
Ryo Mukai ◽  
Kosuke Nakamura ◽  
Shoji Kishi ◽  
...  
Keyword(s):  
Blood Flow ◽  
Indocyanine Green ◽  
Early Phase ◽  
Indocyanine Green Angiography ◽  
Case Series ◽  
Pulsatile Blood Flow ◽  
Retrospective Case ◽  
Venous Flow ◽  
Retrospective Case Series ◽  
Vortex Vein

AbstractAccumulating evidence points to pachychoroid possibly being caused by vortex vein congestion which results in remodeling of choroidal drainage routes via intervortex vein anastomosis. This hypothesis prompted us to investigate vortex vein hemodynamics by studying videos of indocyanine green angiography (ICGA) in a retrospective case series of 295 eyes with pachychoroid spectrum diseases. In the early phase of the video-ICGA, pulsatile vortex venous flow was observed in 76 eyes (25.8%) at the vortex veins connected with anastomosis between superior and inferior vortex veins. The patients with pulsatile vortex venous flow were significantly older than those without pulsatile vortex venous flow (67.8 ± 13.2 vs. 63.9 ± 14.5 years, P < 0.05). Pulsatile vortex venous flow was 1.84 times more common in the inferior quadrants than in the superior quadrants. Interestingly, 14 of 76 eyes (18.4%) with pulsatile vortex venous flow showed retrograde pulsatile blood flow in the vortex veins. This retrograde pulsatile blood flow was 2.50 times more common in the inferior than in the superior quadrants. These findings indicate altered vortex vein hemodynamics due to vortex vein congestion in pachychoroid spectrum diseases.

Venous Flow Coupler in Head and Neck Free Flap Reconstruction

2020 ◽  
pp. 019459982095309
Author(s):  
Scott H. Troob ◽  
Quinn Self ◽  
Deniz Gerecci ◽  
Macgregor Hodgson ◽  
Javier González-Castro ◽  
...  
Keyword(s):  
Free Flap ◽  
Predictive Value ◽  
False Positive ◽  
False Positive Rate ◽  
Case Series ◽  
Arterial Flow ◽  
Retrospective Case ◽  
Venous Flow ◽  
Retrospective Case Series ◽  
Positive Rate

Objective To describe the utility of venous flow couplers in monitoring free tissue flaps in the immediate postoperative setting. Study Design Retrospective case series. Setting Otolaryngology department at a single tertiary care institution. Methods A retrospective case series of free flap reconstructions in which venous flow couplers were employed to supplement flap monitoring. All free flap cases performed over the past 4 years were reviewed. Inclusion criteria were venous flow coupler and arterial flow Doppler monitored for 5 days postoperatively. Results From July 2014 through May 2018, the venous flow coupler was used with the arterial flow Doppler and clinical monitoring in 228 cases. Eleven cases did not meet criteria for inclusion; thus, 217 cases were analyzed. Twenty cases (9.2%) returned to the operating room with concern for flap compromise, and 16 were salvaged. The combination of venous flow coupler and arterial flow Doppler identified 19 of these flaps. Venous flow couplers identified 5 compromised flaps before there was an arterial signal change, and all were salvaged. Additionally, there was a 24.1% false-positive rate when 2 venous flow couplers were used in parallel. For the venous flow coupler, the positive predictive value was 64.3% and the negative predictive value, 98.9%. The false-positive rate in the series was 5.1%. The sensitivity was 90% and the specificity, 94.9%. Conclusion The venous flow coupler is able to detect venous thrombosis in the absence of arterial thrombosis and may contribute to improved flap salvage rates.

Management of isoniazid-monoresistant tuberculosis (Hr-TB) in Queensland, Australia: a retrospective case series

2020 ◽  
Vol 173 ◽  
pp. 106163
Author(s):  
Malcolm Wilson ◽  
Bridget O'Connor ◽  
Nicholas Matigian ◽  
Geoffrey Eather
Keyword(s):  
Case Series ◽  
Retrospective Case ◽  
Retrospective Case Series

Non-vascularized fibular autograft for resistant humeral diaphyseal nonunion: Retrospective case series

2021 ◽  
pp. 102843
Author(s):  
Ahmed Fathy Sadek ◽  
Ezzat Hassan Fouly ◽  
Ahmad Fouad Abdelbaki Allam ◽  
Alaa Zenhom Mahmoud
Keyword(s):  
Case Series ◽  
Retrospective Case ◽  
Retrospective Case Series ◽  
Fibular Autograft

scholarly journals Paediatric admissions to a district general hospital adult intensive care unit over a six year period: A single centre retrospective case series, with review of practitioner confidence and competence in paediatric critical care

2021 ◽  
pp. 175114372110121
Author(s):  
Stephen A Spencer ◽  
Joanna S Gumley ◽  
Marcin Pachucki
Keyword(s):  
Critical Care ◽  
Intensive Care ◽  
Intensive Care Units ◽  
Case Series ◽  
Critically Ill Children ◽  
Single Centre ◽  
Retrospective Case ◽  
Retrospective Case Series ◽  
Paediatric Critical Care ◽  
Doctors And Nurses

Background Critically ill children presenting to district general hospitals (DGH) are admitted to adult intensive care units (AICUs) for stabilisation prior to transfer to paediatric intensive care units (PICUs). Current training in PICU for adult intensive care physicians is only three months. This single centre retrospective case series examines the case mix of children presenting to a DGH AICU and a multidisciplinary survey assesses confidence and previous experience, highlighting continued training needs for DGH AICU staff. Methods all paediatric admissions to AICU and paediatric retrievals were reviewed over a 6-year period (2014-2019). Cases were identified from the Electronic Patient Record (EPR) and from data provided by the regional paediatric retrieval service. A questionnaire survey was sent to AICU doctors and nurses to assess confidence and competence in paediatric critical care. Results Between 2014-2019, 284 children were managed by AICU. In total 35% of cases were <1 y, 48% of cases were <2 y and 64% of cases were <5 y, and 166/284 (58%) children were retrieved. Retrieval reduced with increasing age (OR 0.49 [0.40-0.60], p < 0.0001). The survey had an 82% response rate, and highlighted that only 13% of AICU nurses and 50% of doctors had received prior PICU training. Conclusion At least one critically unwell child presents to the AICU each week. Assessment, stabilisation and management of critically unwell children are vital skills for DGH AICU staff, but confidence and competence are lacking. Formalised strategies are required to develop and maintain paediatric competencies for AICU doctors and nurses.

scholarly journals Neoplasia within the equine foot: A retrospective case series of four horses

2021 ◽  
Author(s):  
C. Osborne ◽  
Y. A. Elce ◽  
L. Meehan ◽  
A. J. Davern ◽  
T. B. Lescun
Keyword(s):  
Case Series ◽  
Retrospective Case ◽  
Retrospective Case Series
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