Recurrent Vascular Access Site Thrombosis in Patients on Hemodialysis - a Problem of Thrombophilia?.

Blood ◽  
2004 ◽  
Vol 104 (11) ◽  
pp. 4018-4018 ◽  
Author(s):  
Robert Klamroth ◽  
Frank Seibt ◽  
Hartmut Rimpler ◽  
Helmut Landgraf

Abstract Introduction: Vascular access site thrombosis in patients receiving hemodialysis is a major cause of hospital admission and recurrent surgery. The underlying pathologic cause is often stenosis of the venous vessel due to fibromuscular hyperplasia. But in the case of early failure occasional studies have investigated that hypercoagulability could play an important role in this context. Aim of the study: Is there a higher prevalence of hereditary and acquired thrombophilic risk factors in patients with vascular access thrombosis in comparison to patients without? Patients: In 2002 and 2003 we examined 52 consecutive patients (mean age 66,1 years) receiving hemodialyisis. 27 patients (pts) in group 1 had a history of vascular access site thrombosis and 25 pts in group 2 had not and an open vascular access for longer than at least six months. All pts in group 1 had a history of at least two occlusions of vascular access. 10/27 pts in group 1 with prosthetic grafts had a history of thrombosis of arteriovenous fistula before implantation of PFTE graft. Methods: In every patient hereditary and acquired thrombophilic risk factors were determined including antithrombin (AT), protein C (PC), protein S (PS), factor V-G1691A-mutation (FVM), prothrombin-G20210A-mutation (FIIM), homocysteine, lipoproteine (a) (Lpa), lupus anticoagulant (LA), cardiolipin antibodies IgG and IgM (ACA), fibrinogen and factor VIII. Platelet hyperreactivity was studied by light transmittance aggregometry in platelet rich plasma (Aggregometer PAP 4, moelab inc.). Aggregation was recorded as the maximum percentage change in light transmittance from baseline using platelet poor plasma as a reference. We defined sticky platelets as platelet aggregation > 30% after induction with different concentrations of ADP (10, 1 and 0,5 μmol) in platelet rich plasma. Results: We found in 14/27 pts with vascular access site thrombosis antiphospholipd antibodies (LA and/or ACA) in comparison to only 2/25 in pts without thrombosis. Activated platelets like the sticky platelets syndrome was shown in 11/27 pts in group 1 and 4/25 pts in group 2. In both groups hyperhomocysteinaemia (23/27 pts and 21/25 resp.), factor VIII elevation (21/27 pts and 22/25 resp.), fibrinogen elevation (22/27 pts and 21/25 resp.) and high levels of Lpa (7/27 pts and 6/25 resp.) were quite similar. There were no significant differences in the number of hereditary risk factors like AT, PC, PS, FVM and FIIM in both groups. Conclusions: In patients receiving hemodialysis we found a high prevalence of acquired thrombophlic risk factors like elevation of factor VIII, homocysteine and fibrinogen. There seems to be causal relation between vascular access site thrombosis and espacially antiphospholpid antibodies and activated platelets (sticky platelets syndrome). The evaluation of these thrombophilic risk factors in patients with recurrent vascular access site thrombosis could lead to an improved antithrombotic therapy.

2019 ◽  
Vol 2019 ◽  
pp. 1-7 ◽  
Author(s):  
Fatih Altintoprak ◽  
Eyup Gemici ◽  
Yasin Alper Yildiz ◽  
Mustafa Yener Uzunoglu ◽  
Taner Kivilcim

Purpose. Bezoars are foreign particles from the accumulation of indigestible materials in the gastrointestinal system and a rare cause of mechanical intestinal obstruction. We aimed at investigating differences in risk factors for the development of intestinal obstruction associated with bezoar in elderly patients.Methods. Hospital records of patients who underwent surgery associated with phytobezoar between January 2004 and May 2016 were retrospectively evaluated. Patients were divided into two groups [<65 years (Group 1) and ≥65 years (Group 2)]. Data were examined regarding presence of comorbidity, history of abdominal surgery, operation time, bezoar site, surgical technique, length of hospitalization, morbidity, and mortality.Results. Of 121 patients enrolled, 48 (39.7%) were male and 73 (60.3%) were female (range: 24-86 years). Group 1 consisted of 69 patients aged < 65, while Group 2 consisted of 52 patients aged ≥ 65. Comorbidity was reported in 52 (42.9%) patients (mostly diabetes mellitus, 20.7%), while 60 patients (49.6%) had history of abdominal surgery (mostly peptic ulcer, 27.3%). No statistical differences were found between the two groups in terms of sex, bezoar site, surgical technique preferred, history of abdominal surgical intervention, pre- and postoperative CT examination, morbidity rates, and length of hospitalization. But, ratio of peptic ulcer operations history, presence of total comorbidity, and time of surgery decision was higher in Group 2 patients.Conclusion. In bezoar-related intestinal obstruction, duration and outcome of treatment are not affected by age distribution. Possibility of bezoar should primarily be considered in elderly patients with history of peptic ulcer operation.


Blood ◽  
2016 ◽  
Vol 128 (22) ◽  
pp. 5755-5755
Author(s):  
Hiroshi Okamura ◽  
Mitsutaka Nishimoto ◽  
Takahiko Nakane ◽  
Hideo Koh ◽  
Yasuhiro Nakashima ◽  
...  

Abstract Introduction: Sinusoidal obstruction syndrome (SOS) is one of the potentially fatal complications of hematopoietic stem cell transplantation (HSCT). In particular, severe SOS frequently leads to multiple organ failure, and a worse prognosis. Thus, prophylaxis against development of SOS could contribute improved survival after HSCT. Previous reports demonstrated the effectiveness of the prophylactic use of ursodeoxycholic acid (UDCA) or certain anticoagulants, including unfractionated and low-molecular-weight heparin, for SOS. In two randomized controlled trials and two meta-analyses it was reported that UDCA, a hydrophilic bile acid, was an effective and safe drug for prophylaxis against SOS. The usefulness and feasibility of prophylactic use of anticoagulants after allogeneic HSCT are however still controversial. In addition, to our knowledge no study has evaluated the feasibility of usage of UDCA combined with an anticoagulant for SOS prevention after allogeneic HSCT in adult patients. To assess the efficacy and safety of use of UDCA combined with an anticoagulant as SOS prophylaxis, we performed a retrospective cohort study to examine the occurrences of SOS and hemorrhagic events in patients who underwent myeloablative allogeneic HSCT at our institution. We examined use of any anticoagulant together with simultaneous administration of UDCA, in comparison with UDCA alone for the prevention of SOS. Patients and methods: We reviewed the charts of consecutive adult patients in whom myeloablative allogeneic HSCT was performed at our hospital from November 1994 to May 2014, and who received either unfractionated heparin or dalteparin (low-molecular-weight heparin) with UDCA (group 1), danaparoid with UDCA (group 2), or UDCA only (group 3), used for prophylaxis against SOS. Results: A total of 280 patients (group 1: n=52; group 2: n=33; and group 3: n=195) were investigated. The proportions of patients with risk factors for SOS-including non-remission at the time of HSCT, a second or subsequent HSCT, high aspartate aminotransferase (AST) levels before HSCT, high ferritin levels before HSCT, a history of receiving gemtuzumab ozogamicin, and HLA disparity-were similar across the three groups. In group 1, a conditioning regimen containing busulfan was used less frequently (P = 0.002). SOS occurred in seven patients (13.7%) in group 1, five patients (15.2%) in group 2, and 28 patients (14.4%) in group 3, all meeting the Seattle criteria. None of the patients in group 1, two (6.1%) in group 2, and nine (4.6%) in group 3 had SOS diagnosed according to the Baltimore criteria. There was no significant difference in the incidence of SOS among the three groups. In addition, with regard to the cumulative incidence of severe SOS, no statistically significant difference was present among the three groups. The incidence of hemorrhagic events within 30 and 100 days following allogeneic HSCT was not significantly different across the three groups (30 days; 5.8%, 3.0%, 5.1%, P = 0.843, 100 days; 17.6%, 15.2%, 14.4%, P=0.843, respectively). Furthermore, the probabilities of OS and NRM until day 100 after allogeneic HSCT were similar among the three groups (P = 0.733 and P = 0.637, respectively). In a univariate model, a history of gemtuzumab ozogamicin treatment, high serum ferritin levels before HSCT, an HLA mismatched donor, and non-complete remission of disease at the time of allogeneic HSCT were found to be significant risk factors for SOS. Multivariate analysis revealed that a history of gemtuzumab ozogamicin therapy, a mismatched HLA donor, and non-complete remission of disease at the time of allogeneic HSCT were significant and independent risk factors for SOS. In the multivariate as well as univariate analyses, combined administration of UDCA and any anticoagulant for SOS prophylaxis did not have a significant effect on the incidence SOS, when compared to prophylaxis with UDCA alone. Conclusion: Our study results suggest that the combined use of UDCA and an anticoagulant for SOS prophylaxis after myeloablative allogeneic HSCT in adult patients was not beneficial. Establishment of an optimal strategy for prophylaxis against SOS after HSCT is still needed. Disclosures Nakane: Mundipharma KK: Research Funding. Koh:Pfizer: Consultancy, Honoraria. Hino:Pfizer: Honoraria, Research Funding; Nippon Shinyaku: Honoraria, Speakers Bureau; Alexion: Honoraria, Research Funding. Nakamae:Mochida Pharmaceutical Co., Ltd.: Honoraria, Research Funding; Pfizer: Consultancy, Honoraria; Novartis Pharma KK: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Other: travel/accommodation/meeting expenses, Research Funding.


2019 ◽  
Vol 5 (2) ◽  
pp. 156-160
Author(s):  
Md Mahboob Morshed ◽  
Md Joynul Islam ◽  
ATM Ashadullah ◽  
Khondker Shaheed Hussain ◽  
Mohammad Ahtashamul Haque

Background: Different risk factors may be related with the haemoglobin and CRP level among the acute coronary syndrome patients. Objective: The purpose of the present study was to see the association of haemoglobin and CRP level with different type of risk factors among the acute coronary syndrome patients. Methodology: This cross-sectional study was conducted in the Department of Cardiology at Mymensingh Medical College, Mymensingh, Bangladesh from December 2010 to November 2011 for a period of two (02) years. Patients of ACS who were presented within 12 hours of chest pain were included as study population. Study population were categorized in four groups according to the level of hemoglobin and C-reactive protein. Age, cardiovascular risks factor, history, family history of cardiovascular disease, treatment history and ECG were taken during admission. Blood sample was collected for baseline laboratory investigations like Troponin-I, Random Blood Sugar (RBS), Blood urea, Serum creatinine, lipid profile, Hemoglobin & CRP level. Sample were then send to standard laboratory/Biochemistry department of MMCH. Result: The mean age of the population was 52.18±8.88 years. Smoking was the highest percentage in Group 1 which was 54(50.0%) cases (P=0.001). Hypertension was found most common in group 1 (47.6%), Group 2 (33.3%), Group 3 (10.7%) and Group 4 (8.3%). Smoking (p=0.001) and hypertension (p=0.016) was found statistically significant. Diabetes was found in Group 1 (37.7%), Group 2 (43.5%), Group 3 (11.6%) and Group 4 (7.2%). Group 1 (50%) and Group 2 (50%) patients were dyslipidaemic. Family history of IHD was present group-1 (36.8%), Group 2 (44.7%), Group 3 (73.2%) and Group 4 (53%). Among the smoker patient 65.6% cases had CRP level ˃12 mg/l; 39.8% cases had CRP level ˂12mg/L. Among the nonsmoker 34.4% cases had CRP level ˃12mg/l and 60.2% cases had CRP level ˂12mg/L. The finding was statistically significant. Conclusion: In conclusion haemoglobin and CRP level is associated with different type of risk factors among the acute coronary syndrome patients. Journal of National Institute of Neurosciences Bangladesh, 2019;5(2): 156-160


2020 ◽  
Vol 101 (2) ◽  
pp. 279-283
Author(s):  
V I Kornev ◽  
N M Kalinina ◽  
O N Startseva

Aim. To assess the changes in endothelial dysfunction in patients undergoing cardiac surgery with minimally invasive extracorporeal circulation (MiECC). Methods. The study included 50 patients who were undergoing coronary artery bypass grafting (CABG) surgery with cardiopulmonary bypass (CPB). The patients were divided assigned to either a minimally invasive cardiopulmonary bypass system (group 1, n=15) or standard extracorporeal circuit (group 2, n=35). Changes in the laboratory parameters were assessed 5 times: before the operation, 5 minutes after protamine sulfate administration, 12 hours after the operation, 7 days after the patient's discharged from the hospital and one month after the operation. The activity of von Willebrand factor, factor VIII, and the number of activated platelets were examined in all patients in venous blood. Results. After protamine sulfate administration, the activity of von Willebrand factor was increased to 164% in the group 1, and up to 193% in the group 2, with a tendency to increase the indicator after 12 hours. The peak of endothelial dysfunction, with the growth of von Willebrand factor and factor VIII, occurs on the 7th day after the operation. In patients of the group with MiECC, von Willebrand factor activity was decreased at the hospital discharge and returned to normal in 1 month. The number of activated platelets increases mainly in group 2 (6% versus 4% in group 1, p=0.29). The expression of P-selectin was significantly higher in group 2 at the hospital discharge (5.5% versus 3.1% in group 1, p 0.001), and in 1 month (4.5% versus 2.3% in group 1, p 0.001). Conclusion. In patients with minimally invasive cardiopulmonary bypass, platelet activation decreases, endothelial dysfunction, accompanied by an increase in the von Willebrand factor and factor VIII activity, is less pronounced; the seventh day after surgery is a period of the high risk of thrombogenic complications.


2020 ◽  
Vol 15 ◽  
Author(s):  
Nicklas Højgaard Rasmussen ◽  
Jakob Dal ◽  
Joop Van den Bergh ◽  
Frank de Vries ◽  
Morten Hasselstrøm Jensen ◽  
...  

Introduction: People with diabetes could have an increased risk of falls as they show more complications, morbidity and use of medication compared to the general population. This study aimed to estimate the risk of falls and to identify risk factors associated with falls in people with diabetes. The second aim was to estimate fall-related injuries including lesions and fractures including their anatomic localization in people with diabetes compared with the general population. Methods: From the Danish National Patient Register we identified people with Type 1 Diabetes (T1D) (n=12,896), Type 2 Diabetes (T2D) (n=407,009). The cohort was divided into two groups with respective control groups matched on age and sex (1:1). All episodes of people hospitalized with a first fall from 1996 to 2017 were analyzed using a Cox proportional-hazards model. Risk factors such as age, sex, diabetic complications, a history of alcohol abuse and the use of medication were included in an adjusted analysis. The incidence rate and rate ratio of falls and the anatomic localization of fall-related injuries as lesions and fractures were identified. Results and Discussion: The cumulative incidence, of falls requiring hospital treatment, was 13.3% in T1D, 11.9% in T2D. In the adjusted analysis T1D and T2D were associated with a higher risk of falls [T1D, Hazard Ratio (HR): 1.33 (95% CI: 1.25 - 1.43), T2D, HR: 1.19 (95% CI:1.16 - 1.22), respectively]. Women [group 1, HR 1.21 (CI:95%:1.13 – 1.29), group 2, HR 1.61 (CI:95%:1.58–1.64)], aged >65 years [groups 1, HR 1.52 (CI:95%:1.39 – 1.61), group 2, HR 1.32 (CI:95%:1.58–1.64)], use of selective serotonin receptor inhibitors (SSRI) [group 1, HR 1.35 (CI:95%:1.1.30 – 1.40), group 2, HR 1.32 (CI:95%:1.27–1.38)], opioids [group 1, HR 1.15 (CI:95%:1.12 – 1.19), group 2, HR 1.09 (CI:95%:1.05–1.12)] and a history of alcohol abuse [group 1, HR 1.77 (CI:95%:1.17 – 2.15), group 2, HR 1.88 (CI:95%:1.65–2.15)] were significantly associated with an increased risk of falls in both groups. The incidence rate ratios (IRR) of fall-related injuries as hip, pelvis/lower-back and skull/facial fractures were higher in people with T2D than controls [IRR 1.08 (CI:95%:1.02-1.15), IRR 1.21 (CI:95%: 1.12-1.48) and IRR 1.11 (CI:95%:1.02-1.21)]. Conclusion: People with diabetes have an increased risk of first fall and a higher incidence of fall-related injuries including fractures. Advanced aging and sex are non-modifiable risk factors, whereas diabetes, the use of SSRIs and opioids and alcohol abuse could be potentially modifiable risk factors for falls. Gaining information on risk factors for falls could guide the management of diabetes treatment i.e. choice of drugs, which enables us to improve treatment particularly in people with a high risk of falls and fractures associated with high mortality.


2019 ◽  
pp. 57-67
Author(s):  
A. N. Katrich ◽  
V. A. Porkhanov ◽  
N. S. Ryabin

Objective: efficacy evaluation of the CEUS LI RADS v2017® system for differential diagnosis of liver tumors in patients with and without cirrhosis.Materials and methods. Retrospective analysis of diagnostic results of the 165 patients with liver tumors (177 nodules) was done. All patients underwent CEUS with results interpretation in accordance to the CEUS LIRADSv2017 ® criteria. Patients were divided into 2 groups based on clinical and morphological data. Group 1 included 62 patients with cirrhosis and/or CVH. Group 2 included 110 patients without risk factors for HCC.Results. Diagnostic efficiency of CEUS LI RADS v2017® for HCC identification was: group 1 – Se – 100%, Sp – 88%, Ac – 95.5%; group 2 – Se – 100%, Sp – 68.8%, Ac – 72.7%; general group Se – 100%, Sp – 72.2%, Ac – 81.4%. In the 2nd group, 21 out of 22 neoplasms, confirmed morphologically as FNH, we classified as LR 4. By applying benign character and specific contrasting patterns of FNG, they were transferred from LR 4 to LR 3. This allowed to increase sensitivity and specificity of differential diagnosis in group 2 (Se – 100%, Sp – 90.6%, Ac – 91.8%) and in general group (Se – 100%, Sp – 90.1%, Ac – 93.2%). Diagnostic efficiency of the criteria for non hepatocellular malignant neoplasms (LR M) was: group 1 – Se – 77.8%, Sp – 100%, Ac – 97%; group 2 – Se – 90%, Sp – 96.7%, Ac – 93.6%; general group- Se – 88.1%, Sp – 98.3%, Ac – 94.9%.Conclusion. Our study confirmed high accuracy of the CEUS LI RADS v2017® system in the differential diagnosis of focal liver tumors. Modification of the system (in particular, transfer of typical FNG forms from the LR 4 category) will make it possible to increase the accuracy of diagnostics by 20%. It will allow to use the LI RADS v2017® system for interpretation CEUS not only among patients with liver cirrhosis, but also in a general group without risk factors of GCC.


2021 ◽  
pp. 112972982110113
Author(s):  
Raja Ramachandran ◽  
Vinant Bhargava ◽  
Sanjiv Jasuja ◽  
Maurizio Gallieni ◽  
Vivekanand Jha ◽  
...  

South and Southeast Asia is the most populated, heterogeneous part of the world. The Association of Vascular Access and InTerventionAl Renal physicians (AVATAR Foundation), India, gathered trends on epidemiology and Interventional Nephrology (IN) for this region. The countries were divided as upper-middle- and higher-income countries as Group-1 and lower and lower-middle-income countries as Group-2. Forty-three percent and 70% patients in the Group 1 and 2 countries had unplanned hemodialysis (HD) initiation. Among the incident HD patients, the dominant Vascular Access (VA) was non-tunneled central catheter (non-TCC) in 70% of Group 2 and tunneled central catheter (TCC) in 32.5% in Group 1 countries. Arterio-Venous Fistula (AVF) in the incident HD patients was observed in 24.5% and 35% of patients in Group-2 and Group-1, respectively. Eight percent and 68.7% of the prevalent HD patients in Group-2 and Group-1 received HD through an AVF respectively. Nephrologists performing any IN procedure were 90% and 60% in Group-2 and Group 1, respectively. The common procedures performed by nephrologists include renal biopsy (93.3%), peritoneal dialysis (PD) catheter insertion (80%), TCC (66.7%) and non-TCC (100%). Constraints for IN include lack of time (73.3%), lack of back-up (40%), lack of training (73.3%), economic issues (33.3%), medico-legal problems (46.6%), no incentive (20%), other interests (46.6%) and institution not supportive (26%). Routine VA surveillance is performed in 12.5% and 83.3% of Group-2 and Group-1, respectively. To conclude, non-TCC and TCC are the most common vascular access in incident HD patients in Group-2 and Group-1, respectively. Lack of training, back-up support and economic constraints were main constraints for IN growth in Group-2 countries.


2021 ◽  
Vol 80 (Suppl 1) ◽  
pp. 613.2-614
Author(s):  
L. Kondrateva ◽  
T. Panafidina ◽  
T. Popkova ◽  
M. Cherkasova ◽  
A. Lila ◽  
...  

Background:Insulin resistance (IR) is considered as initial stage of diseases continuum from development of prediabetes to eventual progression to type 2 diabetes mellitus (T2DM). Individuals with prediabetes have also elevated leptin levels, so this adipocytokine along with IR can be considered as predictive laboratory markers of higher risk of T2DM. It is not yet clear whether presence of individual or multiple SLE-related and/or known traditional risk factors of T2DM (such as unhealthy diet, physical inactivity, family history of diabetes, or being overweight) can precipitate the development of IR.Objectives:To analyze the relationship between IR and increasing leptin levels rates. To identify the presence and evaluate the potential role of traditional and disease-related risk factors for IR in SLE patients without T2DM or hyperglycemia.Methods:A total of 49 SLE pts (46 women, 3 men, 40 [33;48] years old) without established DM and with normal fasting glucose levels (<6,1 mmol/l) were enrolled in the study. Median disease duration was 3,0[0,7;8,0] years, SLEDAI-2K was 5[2;8]. SLE pts were treated with glucocorticoids (GC) (84%), hydroxychloroquine (78%), immunosuppressive drugs (20%) and biological agents (10%). Insulin levels were measured using electrochemiluminescence assay Elecsys (Roche Diagnostics), serum leptin concentrations were estimated using ELISA (DBS-Diagnostics Biochem Canada Inc.). IR was defined as Homeostasis Model Assessment of Insulin Resistance index (HOMA-IR) ≥2,77. Leptin levels were considered elevated at values ≥11,1 ng/ml for women, ≥5.6 ng/ml for men. Eight traditional T2DM risk factors from the FINDRISK (Finnish Type 2 Diabetes Risk Assessment Form) questionnaire (older age, being overweight, abdominal obesity, family history of diabetes, sedentary lifestyle, lack of regular dietary fiber intake, taking antihypertensive medications as a surrogate marker of high blood pressure, documented episodes of hyperglycemia) were evaluated. This study used 5 risk categories for developing T2DM proposed by FINDRISK questionnaire: low, slightly elevated, moderate, high or very high.Results:Median HOMA-IR levels were 1,7 [1,2;2,5]. HOMA-IR correlated with leptin levels (r=0,7, p<0,001), body mass index (BMI) (r=0,6, p<0,001), waist circumference (WC) (r=0,5, p<0,001), T2DM risk categories by FINDRISK (r=0,3, p=0,03), SLEDAI-2K (r= -0,4, p<0,01), and duration of GCs therapy (r=0,3, p=0,03). Current GC use had no influence on HOMA-IR in SLE. IR was detected in 10 (20%) SLE pts. The traditional T2DM risk factors profiles were similar in pts with (Group 1) or without IR (Group 2) except for higher anthropometric parameters in group 1 (for BMI 27,2[24,8;32,2]kg/m2 vs 23,7[20,6;26,7]kg/m2, p<0,01; for WC: 93[86;102]cm vs 83[76;93]cm, p=0,02). Leptin levels were also higher in SLE pts with IR compared to pts without IR (74,2[30,4;112,7]ng/ml vs 25,0[6,7;42,4]ng/ml, p<0,01). Increased leptin levels were found in 35 (71%) pts, more often in pts with IR (100 vs 64%, p=0,04).Conclusion:IR was found in 20% of SLE pts without T2DM having normal serum fasting glucose concentration. Emergence of IR was commonly preceded by increased leptin levels. IR values were closely associated with accumulation of adipose tissue facilitated by long-term GCs use and disease activity decrease. Contribution of other traditional risk factors of T2DM seemed insignificant.Disclosure of Interests:None declared


2021 ◽  
pp. jclinpath-2020-207334
Author(s):  
Catherine Luedke ◽  
Yue Zhao ◽  
Jenna McCracken ◽  
Jake Maule ◽  
Lian-He Yang ◽  
...  

AimsMyeloid neoplasms occur in the setting of chronic lymphocytic leukaemia (CLL)/CLL-like disease. The underlying pathogenesis has not been elucidated.MethodsRetrospectively analysed 66 cases of myeloid neoplasms in patients with CLL/CLL-like disease.ResultsOf these, 33 patients (group 1) had received treatment for CLL/CLL-like disease, while the other 33 patients (group 2) had either concurrent diagnoses or untreated CLL/CLL-like disease before identifying myeloid neoplasms. The two categories had distinct features in clinical presentation, spectrum of myeloid neoplasm, morphology, cytogenetic profile and clinical outcome. Compared with group 2, group 1 demonstrated a younger age at the diagnosis of myeloid neoplasm (median, 65 vs 71 years), a higher fraction of myelodysplastic syndrome (64% vs 36%; OR: 3.1; p<0.05), a higher rate of adverse unbalanced cytogenetic abnormalities, including complex changes, −5/5q- and/or −7/7q- (83% vs 28%; OR: 13.1; p<0.001) and a shorter overall survival (median, 12 vs 44 months; p<0.05).ConclusionsMyeloid neoplasm in the setting of CLL/CLL-like disease can be divided into two categories, one with prior treatment for CLL/CLL-like disease and the other without. CLL-type treatment may accelerate myeloid leukaemogenesis. The risk is estimated to be 13-fold higher in patients with treatment than those without. The causative agent could be attributed to fludarabine in combination with alkylators, based on the latency of myeloid leukaemogenesis and the cytogenetic profile.


2021 ◽  
Vol 70 (3) ◽  
pp. 41-50
Author(s):  
Ekaterina K. Orekhova ◽  
Olga A. Zhandarova ◽  
Igor Yu. Kogan

BACKGROUND: The uterine junctional zone is the inner part of the myometrium. Dysfunction of the zone may underlie the pathogenesis of adenomyosis and its clinical manifestations, while biometric characteristics of the zone are currently considered as promising early diagnostic criteria for this disease. Adenomyosis has traditionally been associated with parity and intrauterine interventions, primarily in older patients. However, modern imaging tools often allow diagnosing the disease in young patients with infertility and an unburdened gynecological history. It is assumed that the detection of changes in the structure and function of the uterine junctional zone in adenomyosis can be the basis for predicting fertility outcomes and complications of pregnancy, as well as for the development of promising therapeutic strategies at the pregravid stage. AIM: The aim of this study was to assess the influence of biometric characteristics of the uterine junctional zone on pregnancy outcomes, depending on the parity and intrauterine interventions in patients with adenomyosis. MATERIALS AND METHODS: This prospective study included 102 patients aged 2239 years old with ultrasound features of adenomyosis who were going to conceive. The patients were divided into two groups: Group 1 (n = 58) consisted of nulliparous patients with no history of previous intrauterine interventions, and Group 2 (n = 44) comprised multipara women with a history of labor and / or intrauterine interventions. Using magnetic resonance imaging, we evaluated minimal, average and maximal junctional zone thicknesses, junctional zone deferential and a ratio of junctional zone thickness to myometrium thickness. Thresholds of biometric characteristics of the uterine junctional zone for adverse pregnancy outcomes were estimated. RESULTS: The frequencies of pregnancy and retrochorial hematoma in patients of Groups 1 and 2 in the first trimester of pregnancy did not differ significantly and amounted to 43.1% and 38.6%, 13.8% and 22.7%, respectively, p 0.05. Adverse pregnancy outcomes were diagnosed in 63.8% of patients in Group 1 and in 68.2% of patients in Group 2, p 0.05. In Group 1, the frequency of retrochorial hematoma depended on the initial junctional zone deferential, as well as on the initial average and maximal junctional zone thicknesses, junctional zone deferentials and ratios of junctional zone thickness to myometrium thickness, which, with an adverse pregnancy outcome, were 1.72.5 times higher than those in patients with a favorable outcome, p 0.05. In Group 2, adverse pregnancy outcomes were recorded with significantly higher values of average and maximal junctional zone thicknesses and junctional zone deferential. ROC curves were constructed using data of logistic regression analysis based on biometric characteristics of the uterine junctional zone to predict spontaneous abortion and infertility in patients with adenomyosis. CONCLUSIONS: Fertility outcomes in patients with adenomyosis depend on a complex of biometric characteristics of the uterine junctional zone as determined by magnetic resonance imaging.


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