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Paprottka KJ, Saam D, Rübenthaler J, Schindler A, Sommer NN, Paprottka PM, Clevert DA, Reiser M, Saam T, Helck A. Prevalence and distribution of calcified nodules in carotid arteries in correlation with clinical symptoms. Radiol Med 2017; 122:449-457. [PMID: 28236046 DOI: 10.1007/s11547-017-0740-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 02/06/2017] [Indexed: 10/20/2022]
Abstract
PURPOSE Calcified nodules ("CN") are responsible for up to 5% of coronary-infarcts and, therefore, classified as minor criteria of "vulnerable" atherosclerotic plaque. We sought to evaluate prevalence and distribution of CN in carotid arteries in correlation with clinical symptoms. METHODS 178 consecutive patients with unilateral ischemic stroke and carotid plaques ≥2 mm by duplex ultrasound underwent a carotid-black-blood-3T-MRI with fat-saturated pre- and post-contrast T1w-, PDw-, T2w- and TOF images using dedicated surface-coils. CN were defined as distinct calcification with an irregular, protruding, and convex luminal surface. Prevalence of CN was determined in common carotid artery ("CCA") and internal carotid artery ("ICA") in consensus by two reviewers blinded to clinical information. RESULTS Thirty seven CN in 28 arteries of 26 patients were identified. Prevalence of CN in CCA compared to ICA was slightly higher (59 vs. 41%), but nearly similar in 66 arteries with ≥30% compared to 290 arteries with <30% stenosis (9.1 vs. 7.6%) and in the artery ipsilateral versus contralateral to stroke (7.9 vs. 7.9%; P values n.s.). Prevalence of CN was significantly higher in 40 symptomatic arteries with ≥30% stenosis compared to asymptomatic 26 arteries (15.6 vs. 0%; P = 0.04). There was a significantly higher prevalence of hypercholesterolemia and hypertension in patients with CN (57.7 vs. 36.0 and 88.5 vs. 66.7%; P values <0.05). CONCLUSION CN were found in 7.9% of arteries with carotid-plaques ≥2 mm by duplex-ultrasound; prevalence was significantly higher in symptomatic arteries with ≥30% stenosis compared to asymptomatic with <30% stenosis, suggesting that CN play a role in pathogenesis of ischemic stroke in a small subset of patients.
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Affiliation(s)
- Karolin Johanna Paprottka
- Institute for Clinical Radiology, Ludwig-Maximilians-University Hospital Munich, Nussbaumstr. 20, 80336, Munich, Germany.
| | - Damiana Saam
- Institute for Clinical Radiology, Ludwig-Maximilians-University Hospital Munich, Nussbaumstr. 20, 80336, Munich, Germany
| | - Johannes Rübenthaler
- Institute for Clinical Radiology, Ludwig-Maximilians-University Hospital Munich, Nussbaumstr. 20, 80336, Munich, Germany
| | - Andreas Schindler
- Institute for Clinical Radiology, Ludwig-Maximilians-University Hospital Munich, Nussbaumstr. 20, 80336, Munich, Germany
| | - Nora Navina Sommer
- Institute for Clinical Radiology, Ludwig-Maximilians-University Hospital Munich, Nussbaumstr. 20, 80336, Munich, Germany
| | - Philipp Marius Paprottka
- Institute for Clinical Radiology, Ludwig-Maximilians-University Hospital Munich, Nussbaumstr. 20, 80336, Munich, Germany
| | - Dirk André Clevert
- Institute for Clinical Radiology, Ludwig-Maximilians-University Hospital Munich, Nussbaumstr. 20, 80336, Munich, Germany
| | - Maximilian Reiser
- Institute for Clinical Radiology, Ludwig-Maximilians-University Hospital Munich, Nussbaumstr. 20, 80336, Munich, Germany
| | - Tobias Saam
- Institute for Clinical Radiology, Ludwig-Maximilians-University Hospital Munich, Nussbaumstr. 20, 80336, Munich, Germany
| | - Andreas Helck
- Institute for Clinical Radiology, Ludwig-Maximilians-University Hospital Munich, Nussbaumstr. 20, 80336, Munich, Germany
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Pierro J, Krick E, Flory A, Regan R, DeRegis C, Boudreaux B, Barber L, Saam D, Saba C. Febrile neutropenia in cats treated with chemotherapy. Vet Comp Oncol 2016; 15:550-556. [PMID: 27094020 DOI: 10.1111/vco.12198] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 10/10/2015] [Accepted: 10/25/2015] [Indexed: 11/29/2022]
Abstract
The purpose of this study was to describe the clinical presentation, potential causative agents, treatment and outcome of febrile neutropenia (FN) in chemotherapy-treated cats. Medical records from eight institutions were retrospectively reviewed. A total of 22 FN events in 20 cats were evaluated. Lymphoma was the most common cancer diagnosis; lomustine and vinca alkaloids were the most frequently implicated causative agents. Presenting clinical signs included decreased appetite, lethargy, vomiting and diarrhoea. Median body temperature and absolute neutrophil count at presentation were 104.1 °F; 40 °C (range: 103.1-105.1 °F; 39.5-40.6 °C) and 246 mL-1 (range: 0-1600 mL-1 ), respectively. Median number of days between chemotherapy administration and FN onset was 5 (range: 4-25 days). All but one cat were treated with intravenous fluids and broad spectrum antibiotics. Fevers resolved in all cases and absolute neutrophil counts returned to normal in 19 cats. Clinical presentation of cats with FN appears similar to that of dogs.
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Affiliation(s)
- J Pierro
- Small Animal Medicine & Surgery, College of Veterinary Medicine, University of Georgia, Athens, GA, USA
| | - E Krick
- Department of Clinical Studies, Oncology, Matthew J. Ryan Veterinary Hospital of the University of Pennsylvania, Philadelphia, PA, USA
| | - A Flory
- Veterinary Specialty Hospital of San Diego, San Diego, CA, USA
| | - R Regan
- Georgia Veterinary Specialists, Atlanta, GA, USA
| | - C DeRegis
- Pieper Memorial Veterinary Center, Middletown, CT, USA
| | - B Boudreaux
- Louisiana State University, Baton Rouge, LA, USA
| | - L Barber
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Tufts University, Medford, MA, USA
| | - D Saam
- Canada West Veterinary Specialists, Vancouver, British Columbia, Canada
| | - C Saba
- Small Animal Medicine & Surgery, College of Veterinary Medicine, University of Georgia, Athens, GA, USA
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Saam D. Urethrolithiasis and nephrolithiasis in a horse. Can Vet J 2001; 42:880-3. [PMID: 11708209 PMCID: PMC1476655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
A 9-year-old, quarter horse gelding with obstructive urethrolithiasis was treated with a perineal urethrostomy. The horse's condition deteriorated and abdominocentesis confirmed septic uroperitonitis. The horse was euthanized and postmortem examination revealed peritonitis, a tear in the lateral wall of the bladder, and a nephrolith within the left renal pelvis.
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Affiliation(s)
- D Saam
- Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5B4
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