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J M Hilderink, N van der Linden, D M Kimenai, E J Litjens, L J J Klinkenberg, B M Aref, F Aziz, J P Kooman, R J M W Rennenberg, O Bekers, R P Koopmans, S J R Meex
BACKGROUND: Estimated glomerular filtration rate (eGFR) is widely used in clinical practice. This study assessed the within-subject biological variation (CVI ) of different eGFR equations in people with chronic kidney disease (CKD) and people without CKD. The aims of this study were ( a ) to determine the 24-h biological variation profiles of creatinine, cystatin C, and eGFR and ( b ) to determine whether CVI of creatinine, cystatin C, and eGFR changes on deterioration of glomerular filtration...
February 26, 2018: Clinical Chemistry
Takaaki Osawa, Shunichiro Komatsu, Seiji Ishiguro, Tsuyoshi Sano
PURPOSE: Knowledge of mesenteric venous anatomy is important to safely perform laparoscopic complete mesocolic excision (CME) of the right colon. Despite their previously reported diversity, consistent features of the right colonic and pancreatic veins can be discerned. The objective of this study was to evaluate anatomical consistency of the right colic vein (RCV) and the pancreaticoduodenal vein associated with the colic vein (PDV-C). METHODS: This study included 125 consecutive patients undergoing contrast-enhanced multidetector-row CT of the abdomen...
February 26, 2018: Surgical and Radiologic Anatomy: SRA
Yuji Kato, Takeshi Hayashi, Hiroyasu Sano, Rie Kato, Norio Tanahashi, Masaki Takao
Cough headache can be a primary benign condition or secondary to underlying etiologies. We herein describe a case of a 52-year-old woman with cough headache that presented as reversible cerebral vasoconstriction syndrome (RCVS). Some cases of RCVS are caused by an aberrant sympathetic response to activities that cause an intracranial pressure surge. Therefore, cough headache should be recognized as a possible presentation of RCVS, even without thunderclap headache or neurological deficits.
January 11, 2018: Internal Medicine
Sabrina Buoro, Anna Carobene, Michela Seghezzi, Barbara Manenti, Paola Dominoni, Aurelio Pacioni, Ferruccio Ceriotti, Cosimo Ottomano, Giuseppe Lippi
BACKGROUND: The integrated evaluation of traditional and innovative red blood cell (RBC) and reticulocyte parameters is a rapid, inexpensive and non-invasive diagnostic tools for differential diagnosis and follow-up of anemia and other pathological conditions needing bone marrow erythropoiesis assessment. Therefore, estimating the biological variation (BV) of these parameters is essential for evaluating the analytical performance of hematological analyzers, and for enabling accurate data interpretation and appropriate clinical management...
January 5, 2018: Clinical Chemistry and Laboratory Medicine: CCLM
Imanda M E Alons, Ben F J Goudsmit, Korne Jellema, Marianne A A van Walderveen, Marieke J H Wermer, Ale Algra
BACKGROUND: Patients with acute severe headache, normal neurological examination, and a normal noncontrast head computed tomography (NCCT) may still have subarachnoid hemorrhage, cerebral venous thrombosis (CVT), cervical arterial dissection, or reversible cerebral vasoconstriction syndrome (RCVS). Computed tomography angiography (CTA) is used increasingly in the emergency department for evaluating this, but its added value remains controversial. METHODS: We retrospectively collected data on the diagnostic yield of CTA in patients with acute severe headache, normal neurological examination, and normal NCCT who received additional CTA in the acute phase in 2 secondary referral centers for vascular neurology...
December 23, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
Kushak Suchdev, Gregory Norris, Imad Zak, Wazim Mohamed, Mohammed Ibrahim
Reversible cerebral vasoconstriction syndrome (RCVS) is increasingly being recognized as a diagnosis in patients presenting with thunderclap headaches. In the vast majority of the cases, the syndrome follows a benign course and patients recover completely without any significant therapeutic intervention. In the rarest of cases, RCVS follows a monophasic course with rapid worsening, severe neurological deficits, and poor outcomes. We present the case of a 25-year-old female who presented with headaches which were worsening over 1 week...
January 2018: Neurohospitalist
Elinor Jo Field, Suzanna Hebert, Ed J Friend, Kevin J Parsons
Objectives: A survey of UK veterinarians was conducted to determine factors influencing suture choice and current suture practice for common surgical procedures. Methods: An online survey was designed and the survey was sent to central practice emails obtained from the 2011 Royal College of Veterinary Surgeons (RCVS) practice database. Results: Two hundred and thirty-nine surveys were completed (203 with no additional postgraduate qualifications (NAQ), 16 with RCVS certificates and 19 with diplomas)...
2017: Veterinary Record Open
Y Kumai, O Seguchi, T Sato, K Wada, M Shiozawa, C Yokota, K Kuroda, S Nakajima, T Sato, M Yanase, Y Matsumoto, S Fukushima, T Fujita, J Kobayashi, N Fukushima
BACKGROUND: Reversible cerebral vasoconstriction syndrome (RCVS) is a transient cerebrovascular disorder putatively caused by some immunosuppressive agents. CASE REPORT: We recently encountered a 47-year-old female patient diagnosed with dilated cardiomyopathy who developed RCVS after heart transplantation. A triple-drug regimen consisting of tacrolimus, mycophenolate mofetil, and a corticosteroid was started after surgery. On postoperative day (POD) 11, the patient developed a severe headache, although computed tomography of the head demonstrated no signs of hemorrhage or infarction...
December 2017: Transplantation Proceedings
Robin Fearon
No abstract text is available yet for this article.
December 2017: Veterinary Record
Fatmah Al Zahmi, Sumeet G Dua, Miral D Jhaveri, Shawna Cutting
Reversible cerebral vasoconstriction syndrome (RCVS) is a distinct clinical syndrome characterized by thunderclap headache and reversible cerebral vasoconstriction. An association between RCVS and arterial dissection has emerged in recent years, where dissection typically involves the cervical vertebral arteries. In this vignette, we describe isolated reversible vasoconstriction, involving the extracranial arteries and intracranial dissection-a combination hitherto never reported.
October 2017: Journal of Vascular and Interventional Neurology
Daniel Lapid, Mohtashim Arbaab Qureshi, Ihtesham Aatif Quresh, Mohammed Rauf Afzal, Alberto Maud, Gustavo J Rodriguez, Rakesh Khatri
Background: Reversible cerebral vasoconstrictive syndrome (RCVS) has characteristic clinical features, brain imaging and Angiographic features. The majority of RCVS cases are associated with the use of antidepressants, polysubstance abuse, and nasal decongestants. We here present a case that highlights the use of eucalyptus herbs as a possible precipitant factor for RCVS formation. Case Presentation: A 42-year-old woman presented to the emergency department with a tingling sensation on the right-hand side of her body and a two-week progressive throbbing severe holocranial headache radiating to the neck, with associated nausea, photophobia, and phonophobia...
October 2017: Journal of Vascular and Interventional Neurology
Mi Ji Lee, Hyun Ah Choi, Hanna Choi, Chin-Sang Chung
Objectives To serially test the International Classification of Headache Disorders (ICHD) 3rd edition beta version criteria for probable reversible cerebral vasoconstriction syndrome (probable RCVS) in patients with thunderclap headache. Methods We prospectively screened consecutive patients with thunderclap headache who visited the Samsung Medical Center between October 2015 and March 2017. Patients were included in the analysis if they a) visited our hospital within 1 month after onset, b) completed a diagnostic work-up, and c) had no secondary causes other than RCVS...
January 1, 2017: Cephalalgia: An International Journal of Headache
(no author information available yet)
No abstract text is available yet for this article.
November 11, 2017: Veterinary Record
(no author information available yet)
No abstract text is available yet for this article.
November 11, 2017: Veterinary Record
Akitaka Yamamoto, Yukinari Omori, Akihiro Shindo, Hiroshi Imai, Hidenori Suzuki
Case: Reversible cerebral vasoconstriction syndrome (RCVS) is an increasingly recognized and important cause of thunderclap headache. Delays in diagnosis may cause deterioration of symptoms and concomitant unnecessary investigations. However, the diagnosis of RCVS in the acute stage remains difficult.A 41-year-old man was admitted to the emergency department for severe, recurrent occipital headaches. The results of initial computed tomography and magnetic resonance imaging (MRI) of the brain and cerebrospinal fluid analysis were normal...
October 2017: Acute Medicine & Surgery
Mina Salamatmanesh, Christopher R McCudden, Arleigh McCurdy, Ronald A Booth
INTRODUCTION: The International Myeloma Working Group recommendations for monitoring disease progression or response include quantitation of the involved monoclonal immunoglobulin. They have defined the minimum change criteria of ≧25% with an absolute change of no <5g/L for either minimal response or progression. Limited evidence is available to accurately determine the magnitude of change in a monoclonal protein to reflect a true change in clinical status. Here we determined the analytical and biological variability of monoclonal proteins in stable monoclonal gammopathy of undetermined significance (MGUS) patients...
October 24, 2017: Clinical Biochemistry
Vincenzo Dattola, Lilla Bonanno, Antonino Naro, Antonino Chillura, Anna Lisa Logiudice, Edoardo Sessa, Fausto Famà, Angelo Quartarone, Rocco Salvatore Calabrò, Silvia Marino, Margherita Russo
Interferon beta (IFN-β) therapy is one of the most commonly prescribed immunomodulatory therapies in relapsing-remitting multiple sclerosis (RRMS). A reversible cerebral vasoconstriction syndrome (RCVS), associated with IFN-β use, has been recently described. For this reason, we tested the effect of once a week intramuscular administration of IFN-β-1A on the function of cerebral vessels in a cohort of RRMS patients. Using transcranial Doppler (TCD) ultrasound, we measured the mean blood flow velocity (MFV) in intracranial vessels 10 h after IFN-β administration...
2017: BioMed Research International
(no author information available yet)
No abstract text is available yet for this article.
October 21, 2017: Veterinary Record
(no author information available yet)
No abstract text is available yet for this article.
October 7, 2017: Veterinary Record
Dae-Hyun Ko, Hae-Il Park, Jungwon Hyun, Hyun Soo Kim, Min-Jeong Park, Dong Hoon Shin
Objectives: To assess the utility of reference change values (RCVs) as delta check limits. Methods: A total of 1,650,518 paired results for 23 general chemistry test results from June 1, 2014, to October 31, 2016, were analyzed. The RCVs for each analyte were calculated from the analytical imprecision and within-subject biological variation. The percent differences between two consecutive results in one patient were categorized into one of four groups: outpatients, inpatients, emergency care, and general health care...
October 1, 2017: American Journal of Clinical Pathology
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