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Hyperviscosity

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https://www.readbyqxmd.com/read/29660913/gbt440-improves-red-blood-cell-deformability-and-reduces-viscosity-of-sickle-cell-blood-under-deoxygenated-conditions
#1
Kobina Dufu, Mira Patel, Donna Oksenberg, Pedro Cabrales
BACKGROUND: In sickle cell disease (SCD), polymerization of hemoglobin S (HbS) leads to the formation of rigid, non-deformable sickled RBCs. Loss of RBC deformability, sickling and irreversible membrane damage causes abnormal blood rheology, and increases viscosity which contributes to vasoocclusion and other SCD pathophysiology. GBT440 (generic name voxelotor) is a novel anti-polymerization and anti-sickling agent currently undergoing clinical evaluation for the treatment of SCD. OBJECTIVE: The purpose of this study was to determine the effects of GBT440 on deformability of sickle RBCs (SS RBCs) and the hyperviscosity of sickle cell blood (SS blood)...
April 13, 2018: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/29660912/increased-plasma-viscosity-in-plasma-cell-dyscrasia-and-whole-blood-viscosity-in-polycythemia-vera
#2
Dong Woo Shin, Ja-Yoon Gu, Jun Sik Kim, Jae-Seol Jung, Dong-Yeop Shin, Youngil Koh, Inho Kim, Hyun Kyung Kim
BACKGROUND: Although hyperviscosity syndrome in plasma cell dyscrasia (PCD) and thrombosis in myeloproliferative neoplasm (MPN) are major causes of morbidity and mortality, blood viscosity measurements are often underutilized. OBJECTIVE: This study aimed to characterize whether whole blood viscosity (WBV) or plasma viscosity (PV) could be predictive of hyperviscosity syndrome in PCD and could be elevated in subgroups of MPN. METHODS: A total of 75 patients with hematologic diseases: PCD (n = 26), MPN (n = 25) including polycythemia vera (P...
April 13, 2018: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/29656787/fifty-year-incidence-of-waldenstr%C3%A3-m-macroglobulinemia-in-olmsted-county-minnesota-from-1961-through-2010-a-population-based-study-with-complete-case-capture-and-hematopathologic-review
#3
Robert A Kyle, Dirk R Larson, Ellen D McPhail, Terry M Therneau, Angela Dispenzieri, Shaji Kumar, Prashant Kapoor, James R Cerhan, S Vincent Rajkumar
OBJECTIVE: To determine the incidence of Waldenström macroglobulinemia (WM) in a strictly defined geographic area over a 50-year period. PATIENTS AND METHODS: All residents of Olmsted County with a diagnosis of WM, consisting of a monoclonal IgM protein of any size and/or 10% or more lymphoplasmacytic infiltration of the bone marrow along with anemia, constitutional symptoms, hyperviscosity, lymphadenopathy, or hepatosplenomegaly requiring therapy, were identified from January 1, 1961, to December 31, 2010...
April 12, 2018: Mayo Clinic Proceedings
https://www.readbyqxmd.com/read/29592985/caffeine-to-prevent-respiratory-failure-and-improve-outcome-in-infant-pertussis
#4
John Evered, Eric Pfeifer, Matthew Gracianette
Pertussis remains a dangerous disease for children around the world, especially for infants less than 6 months old. In this age group, high mortality and morbidity have been linked to the effects of the pertussis toxin, including lymphocytosis, pulmonary hyperviscosity and pulmonary hypertension. This paper reports on an infant with pertussis who received therapeutic caffeine. Caffeine might improve outcomes in pertussis by preventing apnoea, improving respiratory drive and decreasing pulmonary complications...
March 28, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29577910/blood-is-thicker-hyperviscosity-syndrome
#5
Rabih M Geha, Lawrence M Tierney
No abstract text is available yet for this article.
March 22, 2018: American Journal of Medicine
https://www.readbyqxmd.com/read/29500854/characterization-of-microbiota-in-male-infertility-cases-uncovers-differences-in-seminal-hyperviscosity-and-oligoasthenoteratozoospermia-possibly-correlated-with-increased-prevalence-of-infectious-bacteria
#6
Catarina Monteiro, Patrícia I Marques, Bruno Cavadas, Isabel Damião, Vasco Almeida, Nuno Barros, Alberto Barros, Filipa Carvalho, Sílvia Gomes, Susana Seixas
PROBLEM: Sexually transmitted diseases and other infections of male genitourinary tract are thought to negatively impact reproductive health, affecting semen quality. Despite a possible link between bacteria and infertility, few studies attempted to characterize seminal microbiota in healthy and diseased subjects. METHODS OF THE STUDY: A high-throughput sequencing of 16S ribosomal RNA gene was performed in a cohort of infertility-related cases (N = 89) and controls (N = 29) using a pooled sample approach...
March 3, 2018: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/29478798/therapeutic-plasma-exchange-for-hyperviscosity-syndrome-secondary-to-high-rheumatoid-factor
#7
Parvez M Lokhandwala, Maryam Shabihkhani, Paul M Ness, Evan M Bloch
Hyperviscosity syndrome (HVS) is most commonly associated with Waldenstrom's macroglobulinemia, where it may be life-threatening. HVS may also occur in autoimmune diseases; data pertaining to efficacy of therapeutic plasma exchange (TPE) in HVS arising in non-malignant gammopathy are limited. We report a case of 71-year-old female with erosive rheumatoid arthritis with profoundly elevated rheumatoid factor (57,400 IU/ml; normal <35) who presented with findings consistent with HVS: profound weakness, headache, epistaxis and plasma viscosity (8...
February 15, 2018: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/29477943/the-use-of-emergency-apheresis-in-the-management-of-plasma-cell-disorders
#8
REVIEW
Sevgi Kalayoglu-Besisik
Hyperviscosity syndrome (HVS) develops most commonly in Waldenström's macroglobulinemia (WM) and multiple myeloma (MM). Plasmapheresis is the immediate therapy and very effective at relieving symptoms by removing paraprotein. The most commonly used replacement fluid is 4%-5% human albumin in physiologic saline. FFP may be used in patients with coagulation abnormalities. Plasmapheresis should be continued until acute symptoms abate. Hyperviscosity impairs the circulation in the retina and causes hemorrhages around the small retinal vessels...
February 20, 2018: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/29476200/hyperviscosity-syndrome
#9
Guillaume Dumas, Paul Gabarre, Naike Bigé, Eric Maury
No abstract text is available yet for this article.
February 23, 2018: Intensive Care Medicine
https://www.readbyqxmd.com/read/29409138/treatment-of-semen-samples-with-%C3%AE-chymotrypsin-alters-the-expression-pattern-of-sperm-functional-proteins-a-pilot-study
#10
M K Panner Selvam, A Agarwal, R Sharma, L Samanta
Semen hyperviscosity delays the liquefaction of semen sample and is subjected to limited proteolysis by addition of α-chymotrypsin to reduce the viscosity. α-Chymotrypsin is a proteolytic enzyme involved in degradation of the proteins and polypeptides. Even though α-chymotrypsin improves the handling of hyperviscous samples, its effect on the sperm proteins is not clear. This study was aimed to evaluate the alteration in the expression of sperm functional proteins in samples treated with α-chymotrypsin...
February 6, 2018: Andrology
https://www.readbyqxmd.com/read/29399084/blood-rheology-of-angina-pectoris-patients-with-myocardial-injury-after-ischemia-reperfusion-and-its-effect-on-thromboxane-b2-levels
#11
Wenlong Wang, Xiaohui Huang, Yiyong Sun, Jinying Zhang
This study investigated the changes in the blood rheology of patients with angina pectoris and ischemia reperfusion injury and their effect on thromboxane B2 (TXB2) levels to examine their relationship. Forty patients with unstable angina pectoris who underwent elective percutaneous coronary intervention (PCI) were selected for the unstable angina group (UA group) and forty patients deemed free of coronary heart disease by coronary angiography were selected for the control group. Venous blood samples were drawn from all participants; patients in the UA group had blood drawn 1 day before and 1 day after the PCI procedure...
January 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29386839/intensely-pruritic-papules-and-plaques-in-waldenstrom-s-macroglobulinemia
#12
Solam Lee, Noo Ri Lee, Sung Jay Choe, Beom Jun Kim, Minseob Eom, Eung Ho Choi
Waldenstrom's macroglobulinemia (WM) is lymphoplasmacytoid malignancy that affects B lymphocytes. Cutaneous involvement of WM is rare, but various cutaneous manifestations have been reported. These findings are due to various pathological processes including direct invasion of tumor cells into the skin, deposition of paraproteins, hyperviscosity syndrome, and cryoglobulinemia. A 64-year-old man presented with a 10-day history of pruritic erythematous papules and plaques on his trunk and elbows. The clinical features were suspicious for eczematous dermatitis...
February 2018: Annals of Dermatology
https://www.readbyqxmd.com/read/29225979/waldenstrom-s-macroglobulinemia-a-report-of-two-cases-one-with-severe-retinopathy-and-one-with-renal-failure
#13
Naoko Kudo, Masakatsu Usui, Yukiharu Nakabo, Ken-Ichi Yoshida, Kenji Miki, Takashi Osafune, Keisuke Nishimura, Shinsaku Imashuku
We report here two cases of Waldenstrom's macroglobulinemia (WM), one with central nervous system (CNS) symptoms and severe retinopathy and one with renal failure. In both cases, the serum IgM levels exceeded 3,000 mg/dL and monoclonal IgM-kappa was observed in the blood. At onset, Case 1, a 63-year-old female, developed CNS symptoms-namely, drowsiness and syncope. Case 2, a 58-year-old male, had nausea and dysgeusia on admission associated with renal failure, which is quite rare in patients with WM. Both patients exhibited hyperviscosity-related retinopathy, but it was particularly severe in Case 1: she suddenly lost her vision after admission...
2017: Case Reports in Hematology
https://www.readbyqxmd.com/read/29225853/a-clinical-picture-of-pulmonary-embolism-revealing-light-chain-myeloma
#14
Badia Belarj, Amine El Alaoui, Souhail Dahraoui, Jean Uwingabiye, Emmanuel Millbank Owusu, Anas Rochdi, Asmaa Biaz, Abdellah Dami, Sanae Bouhsain, Zohra Ouzzif, Nawfel Doghmi, Samira El Machtani Idrissi
We are highlighting on the particularity of a clinical picture of pulmonary embolism revealing light-chain myeloma in a 56-year-old male patient. Myeloma remains a rare affection. Even though its revelation through pulmonary embolism remains rare, it can be explained by hyperviscosity syndrome accompanying it.
December 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/29201477/a-case-of-advanced-glaucoma-with-increased-episcleral-venous-pressure-in-a-17-year-old-with-eisenmenger-syndrome
#15
Leanne Grech, Adrian Mifsud, Maryanne Caruana, Francis Carbonaro
Eisenmenger syndrome refers to reversal of shunt and central cyanosis due to pulmonary hypertension induced by congenital heart disease with a large systemic-to-pulmonary shunt. We report a case of a 17-year-old man with Eisenmenger syndrome who presented with gradual deterioration in visual acuity and was diagnosed with advanced secondary open angle glaucoma. There have been reports of patients suffering from thrombosis due to hyperviscosity associated with this syndrome; however, to our knowledge, the association of secondary open angle glaucoma with Eisenmenger syndrome has not yet been documented...
2017: Case Reports in Ophthalmological Medicine
https://www.readbyqxmd.com/read/29159010/multiple-myeloma-presenting-as-acute-renal-failure-in-the-absence-of-other-characteristic-features
#16
Zachary N Gastelum, Diana M Biggs, Aaron Scott
This case report describes a 54-year-old, asymptomatic man who presented with hyperkalemia on routine lab testing who was later found to have acute renal failure, unresponsive to fluid resuscitation, with minimal improvement after hemodialysis. After a comprehensive evaluation ruled out common causes of acute renal failure, the patient underwent testing with a bone survey, urine protein electrophoresis (UPEP), serum protein electrophoresis (SPEP), and immunoelectrophoresis for suspected plasma cell dyscrasia and received plasmapheresis for hyperviscosity syndrome and nephrotoxicity, which resulted in improved renal function...
September 20, 2017: Curēus
https://www.readbyqxmd.com/read/29153308/leukapheresis-do-not-improve-early-death-rates-in-acute-myeloid-leukemia-patients-with-hyperleukocytosis
#17
Umit Yavuz Malkan, Osman Ilhami Ozcebe
Hyperleukocytosis (HL) is defined as the clinical condition when the white blood cell (WBC) count is above 100,000/mm3 in peripheral blood. It has been already shown in the literature that leukapheresis, a conventional technique to decrease the serum WBC level, is ineffective for long-term survival in cases of hyperleukocytotic acute myeloid leukemia (AML) with leukostasis. However, the effect of leukapheresis on early mortality is still unclear. In this study, we aimed to evaluate the effect of leukapheresis on early mortality of patients with AML who have HL...
December 2017: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/29149122/leukostasis-management-to-prevent-crisis-in-acute-leukemia%C3%A2
#18
Lisa M Blackburn, Shelly Brown, Aimee Munyon, Michelle Orovets
BACKGROUND: Hyperleukocytosis, a peripheral white blood cell count greater than 100,000/mm3,is most commonly seen in patients with newly diagnosed or relapsed acute lymphoblastic leukemia and acute myeloid leukemia. Leukostasis is a reduction in blood flow related to hyperviscosity. Hyperleukocytosis, causing leukostasis, is an oncologic emergency and requires an exacting assessment and rapid response with appropriate intervention to prevent morbidity and mortality in the first week after diagnosis...
December 1, 2017: Clinical Journal of Oncology Nursing
https://www.readbyqxmd.com/read/29136724/-expert-consensus-for-the-diagnosis-and-treatment-of-patients-with-renal-impairment-of-multiple-myeloma
#19
(no author information available yet)
Renal impairment (RI) is a common complication of multiple myeloma (MM), which is presented as chronic kidney disease (CKD) or acute kidney injury (AKI). The typical pathological feature is cast nephropathy. Presently international system staging (ISS) is used in evaluating MM. Although the classic Durie-Salmon staging system could be still used in clinical practice, it may miss out some patients with renal impairment. For evaluations of RI in MM patients with CKD, it's recommended to assess the estimated glomerular filtration rate (eGFR) by creatinine based formula CKD-epidemiology collaboration (EPI) or modification of diet in renal disease(MDRD) and to stage the renal injuries according to 2013 Kidney Disease Improving Global Outcomes (KDIGO) CKD guidelines...
November 1, 2017: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/29118506/localized-retinal-degeneration-secondary-to-waldenstr%C3%A3-m-s-macroglobulinemia
#20
Dhanashree Ratra, Vineet Ratra, Mansi Kishnani
A 52-year-old man, treated for Waldenström's macroglobulinemia (WM), continued to experience decreased vision even after 24 months. He was evaluated using multimodal imaging and electroretinography. The retina did not show any hyperviscosity changes but revealed a yellow lesion at macula with atrophic changes causing a pattern on fluorescein angiography similar to a leopard's skin. Optical coherence tomographic imaging revealed uniformly reflective material deposited in the outer retina with degeneration of outer retinal layers...
September 2017: Oman Journal of Ophthalmology
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