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1.
Adv Clin Exp Med ; 2024 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-39087825

RESUMO

BACKGROUND: The standard starting point for percutaneous sacroiliac screw insertion was initially determined at the intersection of the line posterior to the anterior superior iliac spine and the line continuing the anatomical axis of the femur. The technique was pioneered in patients lying prone in surgery, although it has been used with patients in the supine position. The optimal starting point for patients in both prone and supine positions remains uncertain. OBJECTIVES: This cadaveric study aimed to determine the best entry point for the percutaneous insertion of sacroiliac screws depending on the patient's positioning for surgery. MATERIAL AND METHODS: Kirschner wires (K-wires) were percutaneously inserted into the sacral body of 8th human cadavers. In addition to the so-called standard sacroiliac screw entry point (point A), points located consecutively 1 cm (point B) and 2 cm (point C) cranially from the point along the line, prolonging the femoral axis were also studied. The K-wires were inserted into the studied entry points on the right side in a supine position and on the left side of the same cadaver in a prone position. The placement of the K-wires was assessed using radiographic imaging and cadaver dissection. RESULTS: An analysis of the K-wire placement in the supine position revealed incorrect positioning of 100% of the K-wires inserted at entry point A and 87% at entry point B. All the K-wires inserted in the supine position at entry point C were correctly placed. All K-wires inserted in the prone position were correctly positioned. CONCLUSIONS: All 3 studied entry points enabled the correct placement of orthopedic implants for prone position surgery. The best entry point for surgery performed in the supine position was located 2 cm cranially from the standard entry point, along the line prolonging the femoral axis.

2.
Vasc Health Risk Manag ; 20: 369-375, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39184144

RESUMO

Introduction: Recurrent laryngeal nerve palsy is a rare but important complication after endarterectomy (CEA). The impact on voice quality after this procedure is also important. The aim of the study was to assess voice quality and vocal cord function after CEA. Material and Methods: 200 patients were enrolled in the study. Inclusion criteria were indications for CEA and patient consent to the procedure. Endoscopic examination of the larynx was performed before the procedure, immediately after the procedure, on the 2nd day after the procedure, then 3 month and 6 months after the procedure. Voice was assessed by maximum phonation time (MPT), GRBAS scale, Voice Handicap Index (VHI) and the Voice-Related Quality of Life (V-RQOL) questionnaire. Results: In the study group, the results on the GRBAS scale were significantly worse and the average MPT was shorter compared to the control group. In the V-RQOL assessment, patients rated their voice as fair or good, significantly more often noticed that they had difficulty speaking loudly and being heard, and that they felt short of air when speaking. In VHI-30, the total score was significantly higher in the study group compared to the control group. Voice disorders after the procedure were reported by 68 patients, while a disorder of the recurrent laryngeal nerve was observed immediately after the procedure in 32 patients. Most vocal cord disorders were transient. Ultimately, 3% of patients were diagnosed with vocal cord paralysis. Conclusion: Cranial nerves paralysis, including the recurrent laryngeal nerve, are a common complication after CEA. Majority the paralysis is transient, but requires appropriate diagnostic and therapeutic procedures. Vocal cord evaluation is a non-invasive and widely available examination and should be performed pre- and postoperatively after all neck surgeries. The incidence of voice disorders after CEA significantly affects the quality of life of patients and requires voice rehabilitation and patient care with psychological support.


Assuntos
Endarterectomia das Carótidas , Qualidade de Vida , Paralisia das Pregas Vocais , Qualidade da Voz , Humanos , Paralisia das Pregas Vocais/etiologia , Paralisia das Pregas Vocais/diagnóstico , Paralisia das Pregas Vocais/fisiopatologia , Masculino , Feminino , Idoso , Pessoa de Meia-Idade , Resultado do Tratamento , Fatores de Tempo , Endarterectomia das Carótidas/efeitos adversos , Inquéritos e Questionários , Avaliação da Deficiência , Fonação , Recuperação de Função Fisiológica , Prega Vocal/fisiopatologia , Prega Vocal/inervação , Laringoscopia , Idoso de 80 Anos ou mais , Traumatismos do Nervo Laríngeo Recorrente/etiologia , Traumatismos do Nervo Laríngeo Recorrente/diagnóstico , Traumatismos do Nervo Laríngeo Recorrente/fisiopatologia , Estudos de Casos e Controles , Nervo Laríngeo Recorrente/fisiopatologia , Estudos Prospectivos , Fatores de Risco
3.
Biomedicines ; 12(7)2024 Jul 06.
Artigo em Inglês | MEDLINE | ID: mdl-39062079

RESUMO

BACKGROUND: We performed gene therapy for critical limb ischemia in thromboangiitis obliterans (TAO) by the intramuscular administration of plasmids of the vascular endothelial growth factor gene (VEGF 165) with or without bone marrow-derived stem cells. METHODS: The 21 patients were randomly assigned to three groups: A-with dual therapy, cells and plasmid; B-plasmid only; and C-control group, where patients received intramuscular injections of saline. Serum VEGF levels, the ankle-brachial index (ABI), transcutaneous oxygen pressure (TcPO2), and the rest pain measured by the visual analog scale (VAS) were determined sequentially before treatment, and then 1 and 3 months after treatment. RESULTS: In the treatment groups, serum VEGF levels increased by 4 weeks and returned to baseline values after 3 months. ABI after 12 weeks increased by an average of 0.18 in group A, and 0.09 in group B and group C. TcPO2 increased by an average of 17.3 mmHg in group A, 14.1 mmHg in group B, and 10.7 mmHg in group C. The largest pain decrease was observed in group A and averaged 5.43 less pain intensity. CONCLUSIONS: Gene therapy using the VEGF plasmid along with or without bone marrow-derived mononuclear cells administered intramuscularly into an ischemic limb in TAO is a safe and effective therapy.

4.
Medicina (Kaunas) ; 60(3)2024 Mar 08.
Artigo em Inglês | MEDLINE | ID: mdl-38541175

RESUMO

Hepatic hemangiomas are the most common benign liver tumors. Typically, small- to medium-sized hemangiomas are asymptomatic and discovered incidentally through the widespread use of imaging techniques. Giant hemangiomas (>5 cm) have a higher risk of complications. A variety of imaging methods are used for diagnosis. Cavernous hemangioma is the most frequent type, but radiologists must be aware of other varieties. Conservative management is often adequate, but some cases necessitate targeted interventions. Although surgery was traditionally the main treatment, the evolution of minimally invasive procedures now often recommends transarterial chemoembolization as the treatment of choice.


Assuntos
Carcinoma Hepatocelular , Quimioembolização Terapêutica , Hemangioma Cavernoso , Hemangioma , Neoplasias Hepáticas , Humanos , Neoplasias Hepáticas/diagnóstico por imagem , Neoplasias Hepáticas/terapia , Neoplasias Hepáticas/patologia , Carcinoma Hepatocelular/terapia , Imageamento por Ressonância Magnética/métodos , Hemangioma/diagnóstico por imagem , Hemangioma/terapia , Hemangioma Cavernoso/diagnóstico por imagem , Hemangioma Cavernoso/terapia
5.
Cancers (Basel) ; 16(2)2024 Jan 16.
Artigo em Inglês | MEDLINE | ID: mdl-38254869

RESUMO

This study evaluates the effectiveness of superselective transcatheter arterial chemoembolization (TACE) using a bleomycin-lipiodol emulsion in treating giant hepatic hemangiomas. A retrospective review included 31 patients with a mean age of 53 ± 10.42 years who underwent TACE from December 2014 to October 2022, with follow-up imaging examinations to assess outcomes. Technical success was defined as successful embolization of all feeding arteries, and clinical success was defined as a reduction in hemangioma volume by 50% or more on follow-up imaging. This study observed a 100% technical success rate. Post-embolization syndrome was common, and two cases of asymptomatic hepatic artery dissection were noted. Clinical success was achieved in 80.6% of patients, with significant volume reduction observed in the majority. Conclusively, superselective transcatheter arterial chemoembolization with bleomycin-lipiodol emulsions is presented as a viable and effective treatment option for giant hepatic hemangiomas. With no procedure-related mortality and significant volume reduction in most cases, this method offers a promising alternative to surgical intervention. This study's findings suggest a need for further exploration and validation in larger-scale prospective studies.

6.
J Clin Med ; 12(24)2023 Dec 06.
Artigo em Inglês | MEDLINE | ID: mdl-38137602

RESUMO

Kidney transplantation is a crucial treatment for end-stage kidney disease, with immunosuppressive drugs helping to reduce acute rejection rates. However, kidney graft longevity remains a concern. This study explores the role of indoleamine 2,3-dioxygenase 1 (IDO1) in kidney transplant immunology. IDO1 breaks down tryptophan, affecting immune cell behavior, primarily T-cells. The research focuses on both cellular and antibody-mediated immune responses, often causing graft damage. The study assessed IDO1 expression in renal transplant biopsies from patients with graft function decline, examining its connection to clinical parameters. A total of 121 biopsy samples were evaluated for IDO1 expression using immunohistochemistry. Patients were categorized as IDO1(+) positive or IDO1(-) negative based on immunoreactivity in tubular epithelium. Results showed a significant link between IDO1 expression and rejection incidence. IDO1(+) positive patients had lower rejection rates (32.9%) compared to IDO1(-) negative ones (62.2%) [p = 0.0017], with substantial differences in antibody-mediated rejection (AMR) (5.2% vs. 20%) [p = 0.0085] and T-cell mediated rejection (TCMR) (31.6% vs. 57.8%). These associations suggest that IDO1 may play a protective role in kidney transplant rejection. IDO1 modulation could offer novel therapeutic avenues to enhance graft survival. The study underscores IDO1 as a potential marker for rejection risk assessment, with its potential applications in personalized interventions and improved patient outcomes. Further research is needed to fully comprehend the mechanisms behind IDO1's immunomodulatory functions and its potential clinical translation.

7.
J Clin Med ; 12(20)2023 Oct 12.
Artigo em Inglês | MEDLINE | ID: mdl-37892619

RESUMO

BACKGROUND: The most common form of vascular access for hemodialysis is a native arteriovenous fistula, which connects the site of the artery to the end of the vein. The maturation process of the fistula plays a crucial role in the establishment of a functional vascular access. Radial artery stenosis is among the potential causes of maturation failure. In these cases, improving the fistula's blood flow may be difficult, as traditional surgical reanastomosis and endovascular intervention frequently fail. Radial artery deviation and reimplantation (RADAR) is a novel and effective technique for creating primary fistulas with a high patency rate. The main disadvantage of this procedure is the ligation of the radial artery and the subsequent known consequences. METHODS: To accelerate maturation, we used RADAR as a secondary approach in three patients with radial artery stenosis and maturation failure. RESULTS: In all patients after surgery, we observed a significant increase in fistula blood flow. Two patients used fistulas for hemodialysis after surgery. We describe the image diagnosis, procedure, and benefits of this method. CONCLUSIONS: The RADAR technique may be successfully used as a secondary access in patients with maturation failure due to RA stenosis to accelerate fistula maturation.

8.
Dermatol Ther (Heidelb) ; 13(11): 2785-2796, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37779167

RESUMO

INTRODUCTION: Chronic pruritus (CP) is a common symptom defined as a sensation that provokes the desire to scratch and which lasts for at least 6 weeks. CP remains a problem for up to 21.3% of renal transplant recipients (RTRs). Our research aimed to establish the possible association between serum levels of neurotrophin-4 (NT-4) and brain-derived neurotrophic factor (BDNF) and the presence and intensity of CP in RTR. METHODS: The study was performed on a group of 129 RTRs, who were divided according to the presence or absence of pruritus in the previous 3 days. The assessment of pruritus was performed with the use of a numeric rating scale (NRS), 4-Item Itch Questionnaire (4IIQ), and Itchy Quality of Life (Itchy QoL). A total of 129 blood samples with a volume of 9 ml were drawn from RTRs during the monthly routine control. Serum levels (pg/mL) of NT-4 and BDNF were measured by the ELISA. RESULTS: Pruritic RTRs have statistically significantly higher serum concentrations of NT-4 serum level compared to non-pruritic RTRs (229.17 ± 143.86 pg/mL and 153.08 ± 78.19 pg/mL [p = 0.024], respectively). Moreover, a statistically significant difference between pruritic and non-pruritic RTRs with healthy controls was shown (p < 0.001 and p < 0.001, respectively). Although there was a numerically higher serum concentration of BDNF in pruritic RTRs (32.18 ± 7.31 pg/mL vs. 31.58 ± 10.84 pg/mL), the difference did not reach statistical significance. No statistically significant difference was also seen in BDNF serum levels between RTRs and healthy controls. Furthermore, there was a statistically significant, positive correlation between serum concentration of NT-4 and NRS score (p = 0.008, r = 0.357). CONCLUSIONS: The results indicate higher NT-4 serum concentration in RTRs with pruritus compared to RTRs without pruritus. Furthermore, the study revealed a statistically significant, positive correlation between the serum concentration of NT-4 and NRS score.

9.
Medicina (Kaunas) ; 59(8)2023 Jul 25.
Artigo em Inglês | MEDLINE | ID: mdl-37629648

RESUMO

Giant hepatic hemangiomas present a significant clinical challenge, and effective treatment options are warranted. This study aimed to assess the safety and feasibility of transarterial bleomycin-lipiodol embolization in patients with giant hepatic hemangiomas. A retrospective analysis was conducted on patients with giant hepatic hemangiomas (>5 cm). Transarterial chemoembolization (TACE) was performed using 7-20 cc of lipiodol mixed with 1500 IU of bleomycin. Safety outcomes, including post-embolization syndrome (PES), hepatic artery dissection, systemic complications, and access site complications, were evaluated. Radiation doses were also measured. Feasibility was assessed based on the achieved hemangioma coverage. Seventy-three patients (49 female, 24 male) with a mean age of 55.52 years were treated between December 2014 and April 2023. The average hospitalization duration was 3.82 days, and 97.3% of lesions were limited to one liver lobe. The average bleomycin dose per procedure was 1301.5625 IU, while the average lipiodol dose was 11.04 cc. The average radiation dose was 0.56 Gy. PES occurred after 45.7% of TACE procedures, with varying severity. Complications such as hepatic artery dissection (three cases), access site complications (two cases), and other complications (one case) were observed. No treatment-related mortality occurred. Hemangioma coverage exceeding 75% was achieved in 77.5% of cases. The study results suggest that transarterial bleomycin-lipiodol embolization is a safe and feasible treatment option for a heterogeneous group of patients with giant hepatic hemangiomas. This approach may hold promise in improving outcomes for patients with this challenging condition.


Assuntos
Dissecção Aórtica , Carcinoma Hepatocelular , Quimioembolização Terapêutica , Hemangioma , Neoplasias Hepáticas , Humanos , Feminino , Masculino , Pessoa de Meia-Idade , Óleo Etiodado/uso terapêutico , Carcinoma Hepatocelular/terapia , Estudos de Viabilidade , Estudos Retrospectivos , Neoplasias Hepáticas/terapia , Quimioembolização Terapêutica/efeitos adversos , Bleomicina/efeitos adversos , Síndrome
10.
Respir Physiol Neurobiol ; 314: 104088, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37263532

RESUMO

Obstructive sleep apnea (OSA) is a risk factor for cardiovascular disease, inflammation, and oxidative stress. This study compared serum levels of different factors in patients with carotid artery stenosis and with or without coexisting OSA. It also aimed to identify a molecule that may be crucial for the inflammatory process correlated with intermittent hypoxia. Sixty-eight subjects scheduled for surgical treatment of carotid artery stenosis were enrolled. Polygraphy was performed the night before the surgery. Morning levels of proinflammatory cytokines and chemotactic and angiogenic factors were measured. The most profound differences between the groups were found for ENA-78 serum concentration. However, as many factors could affect the results, further studies are needed to investigate the role of ENA-78 in atherosclerosis in patients suffering from OSA.


Assuntos
Aterosclerose , Estenose das Carótidas , Apneia Obstrutiva do Sono , Humanos , Estenose das Carótidas/complicações , Aterosclerose/complicações , Fatores de Risco , Hipóxia/complicações
11.
Artigo em Inglês | MEDLINE | ID: mdl-36232122

RESUMO

One of the most serious problems in people with diabetes is diabetic foot syndrome. Due to the peripheral location of atherosclerotic lesions in the arterial system of the lower extremities, endovascular treatment plays a dominant role. However, carrying out these procedures is not always possible and does not always bring the expected results. Gene therapy, which stimulates angiogenesis, improves not only the inflow from the proximal limb but also the blood redistribution in individual angiosomes. Due to the encouraging results of sequential treatment consisting of intramuscular injections of VEGF/HGF bicistronic plasmids followed by a month of ANG1 plasmids, we decided to use the described method for the treatment of critical ischemia of the lower limbs in the course of diabetes and, more specifically, in diabetic foot syndrome. Twenty-four patients meeting the inclusion criteria were enrolled in the study. They were randomly divided into two equal groups. The first group of patients was subjected to gene therapy, where the patients received intramuscular injections of pIRES/VEGF165/HGF plasmids and 1 month of ANG-1 plasmids. The remaining patients constituted the control group. Gene therapy was well tolerated by most patients. The wounds healed significantly better in Group 1. The minimal value of ABI increased significantly in Group 1 from 0.44 ± 0.14 (± standard deviation) to 0.47 ± 0.12 (with p = 0.028) at the end of the study. There were no significant differences in the control group. In the gene treatment group, PtcO2 increased significantly (from 28.71 ± 10.89 mmHg to 33.9 ± 6.33 mmHg with p = 0.001), while in Group 2, no statistically significant changes were found. The observed resting pain decreased significantly in both groups (Group 1 decreased from 6.80 ± 1.48 to 2.10 ± 1.10; p < 0.001; the control group decreased from 7.44 ± 1.42 to 3.78 ± 1.64 with p < 0.001). In our study, we evaluated the effectiveness of gene therapy with the growth factors described above in patients with CLI in the course of complicated DM. The therapy was shown to be effective with minimal side effects. No serious complications were observed.


Assuntos
Diabetes Mellitus , Pé Diabético , Diabetes Mellitus/terapia , Pé Diabético/tratamento farmacológico , Terapia Genética/efeitos adversos , Terapia Genética/métodos , Fator de Crescimento de Hepatócito/genética , Fator de Crescimento de Hepatócito/uso terapêutico , Humanos , Isquemia/terapia , Extremidade Inferior/irrigação sanguínea , Plasmídeos/genética , Plasmídeos/uso terapêutico , Fator A de Crescimento do Endotélio Vascular/genética
12.
Vasc Health Risk Manag ; 18: 677-684, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36071744

RESUMO

Purpose: Numerous cases of abdominal aortic aneurysm (AAA) enlargement, and even rupture, despite endovascular aneurysm repair (EVAR), have been documented. This has been linked to increased aneurysm sac pressure (ASP). We decided to conduct further research with the aim to identify correlations between ASP during EVAR and subsequent aneurysm enlargement. Patients and Methods: This experimental prospective study included 30 patients undergoing EVAR of infrarenal AAAs. Invasive ASP measurements were done using a thin pressure wire. Aortic pressure (AP) was measured using a catheter placed over the wire. Systolic pressure index (SPI), diastolic pressure index (DPI), mean pressure index (MPI), and pulse pressure index (PPI) were calculated both for ASP and AP. The results of follow-up computed tomography angiography (CTA) at 3 months were compared with baseline CTA findings. Results: During EVAR, a significant reduction was observed for SPI (from 98% to 61%), DPI (from 100% to 87%), MPI (from 99% to 74%), and PPI (from 97% to 34%). There were no significant correlations of pressure indices with an aneurysm diameter, cross-sectional area, velocity, thrombus shape and size, number of patent lumbar arteries, length and diameter of aneurysm neck, diameter of the inferior mesenteric artery, as well as diameter and angle of common iliac arteries. On the other hand, aneurysm neck angulation was significantly inversely correlated with reduced PPI. After combining CTA findings with pressure measurements, we identified a positive correlation between PPI and aneurysm enlargement (ratio of the cross-sectional area at the widest spot at baseline and at 3 months after EVAR). Conclusion: The study showed that ASP can be successfully measured during EVAR and can facilitate the assessment of treatment efficacy. In particular, PPI can serve as a prognostic factor of aneurysm enlargement and can help identify high-risk patients who remain prior monitoring.


Assuntos
Aneurisma da Aorta Abdominal , Implante de Prótese Vascular , Procedimentos Endovasculares , Aneurisma da Aorta Abdominal/diagnóstico por imagem , Aneurisma da Aorta Abdominal/cirurgia , Implante de Prótese Vascular/efeitos adversos , Procedimentos Endovasculares/efeitos adversos , Humanos , Prognóstico , Estudos Prospectivos
13.
Artigo em Inglês | MEDLINE | ID: mdl-35627746

RESUMO

INTRODUCTION: Endarterectomy and angioplasty of the internal carotid artery are surgical measures for the prevention of ischemic stroke. Perioperative complications are caused by concomitant embolism and reperfusion syndrome leading to damage of the blood-brain barrier. METHODS: The study included 88 patients divided into two groups, depending on the surgical technique used: internal carotid artery endarterectomy (CEA), 66 patients, and percutaneous carotid angioplasty and stenting (CAS), 22 patients. Blood was drawn 24 h before surgery, as well as 8, 24, and 48 h post-surgery. The assessment of damage to the blood-brain barrier was based on the evaluation of the concentration of claudin-1 and occludin, aquaporin-4, the measurements of the activity of metalloproteinase-2 (MMP-2) and -9 (MMP-9), and the assessment of central nervous system damage, measured by changes in the blood S100ß protein concentration. RESULTS: A significant increase in the concentration of the blood-brain barrier damage markers and increased MMP-2 and MMP-9 activity were found in patient blood. The degree of damage to the blood-brain barrier was higher in the CEA group. CONCLUSIONS: The authors' own research has indicated that revascularization of the internal carotid artery may lead to damage to the central nervous system secondary to damage to the blood-brain barrier.


Assuntos
Estenose das Carótidas , Barreira Hematoencefálica , Antígeno Carcinoembrionário , Artérias Carótidas , Estenose das Carótidas/cirurgia , Humanos , Metaloproteinase 2 da Matriz , Metaloproteinase 9 da Matriz
14.
Vasc Endovascular Surg ; 56(2): 220-224, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-34779321

RESUMO

The development of aneurysms of thoracoabdominal aorta (TAAA) in a post-transplant patient is a rare clinical situation and requires special attention. Endovascular treatment is the most suitable option for these patients due to numerous comorbidities. Particular emphasis should be placed on the ejection fraction as one of the main criteria for qualifying for surgery. The treatment itself remains a major challenge relating to anatomical constrains; however, it is possible in select patients in experienced centers.


Assuntos
Aneurisma da Aorta Torácica , Implante de Prótese Vascular , Procedimentos Endovasculares , Transplante de Coração , Aneurisma da Aorta Torácica/diagnóstico por imagem , Aneurisma da Aorta Torácica/etiologia , Aneurisma da Aorta Torácica/cirurgia , Prótese Vascular , Implante de Prótese Vascular/efeitos adversos , Procedimentos Endovasculares/efeitos adversos , Transplante de Coração/efeitos adversos , Humanos , Complicações Pós-Operatórias , Desenho de Prótese , Fatores de Risco , Resultado do Tratamento
15.
Diagnostics (Basel) ; 11(12)2021 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-34943602

RESUMO

The occurrence of anti-endothelin A receptor antibodies may be useful in diagnosis of transplant damage. We noticed that the presence of the endothelin A receptor (ETA receptor) in biopsy compartments is yet to be defined. We decided therefore to analysed the presence and relevance of the ETA receptor in biopsy to define the cause. Our study aims to evaluate the expression of ETA receptors in renal recipients after a biopsy due to the worsening of transplant function. METHODS: The expression of ETA receptors was analyzed in renal transplant biopsies using the immunohistochemical method. The evaluation of ETA receptors was performed on paraffin sections. ETA receptor expression was analyzed in four compartments of renal transplant biopsies: glomeruli; vessels; tubular epithelium; and interstitium. The assessment was presented using a three-step scale (0: lack of expression; 1: mild to moderate immunoreactivity; 2: high expression). The results of each compartment from a single biopsy were summarized and assessed in the context of antibody-mediated rejection (AMR). RESULTS: We analyzed 156 patients who had a renal allograft biopsy after renal transplantation. For each patient, we created a summarized ETA receptor expression score. The summarized ETA receptor expression score analysis showed statistically significant differences in patients with and without AMR. In addition, we noticed that patients with AMR had a significantly higher mean summarized expression of ETA receptor score of 3.28 ± 1.56 compared to patients who had a biopsy for other reasons with a mean summarized ETA receptor expression score of 1.47 ± 1.35 (p < 0.000001). ROC analysis of the ETA receptor expression score for detecting AMR status showed that the most appropriate cut-off for the test of the chosen binary classifier is between 2 and 3 of the summarized ETA receptor expression score. CONCLUSIONS: The expression of endothelin A receptors in renal transplant compartments may be associated with antibody-mediated rejection. The positive ETA receptor staining might be a vital feature in the diagnosis of damage in AMR. The summarized ETA receptor expression score seems to be an exciting diagnostic tool in transplant injury assessment.

16.
Biomed Pharmacother ; 143: 112186, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34649339

RESUMO

INTRODUCTION: Patients with peripheral artery disease have poor prognosis despite advances in vascular surgery. Therefore, attempts have been made at using gene and cell therapy to stimulate angiogenesis in the lower limbs in patients with critical lower limb ischemia (CLI). METHODS: The study included 30 rats divided into 3 groups. An intramuscular injection of a therapeutic gene or cells in the right hind limb was administered in each group: angiopoietin-1 (ANG1) plasmid in group 1, ANG1/vascular endothelial growth factor (ANG1/VEGF) bicistronic construct in group 2, and naked plasmid in group 3 (control). After 3 months of follow-up, tissue samples were harvested, and vessels that stained positively for CD34 cells were quantified. RESULTS: The highest CD34+ cell count was noted in the ANG1/VEGF group (98.26 cells), followed by the ANG1 group (80.31) and control group (47.93). The CD34+ cell count was significantly higher in the ANG1/VEGF and ANG1 groups than in the control group. There was no significant difference in the CD34+ cell count between the ANG1/VEGF and ANG1 groups. CONCLUSION: Our study confirmed that therapy with ANG1 plasmid alone or ANG1/VEGF bicistronic construct is safe and effective in a rat model. The therapy resulted in the recruitment of more CD34+ vascular endothelial cells than in the control group receiving naked plasmid.


Assuntos
Angiopoietina-1/biossíntese , Antígenos CD34/metabolismo , Movimento Celular , Células Progenitoras Endoteliais/metabolismo , Terapia Genética , Isquemia/terapia , Músculo Esquelético/irrigação sanguínea , Neovascularização Fisiológica , Fator A de Crescimento do Endotélio Vascular/biossíntese , Angiopoietina-1/genética , Animais , Modelos Animais de Doenças , Feminino , Técnicas de Transferência de Genes , Vetores Genéticos , Membro Posterior , Injeções Intramusculares , Isquemia/genética , Isquemia/metabolismo , Isquemia/fisiopatologia , Masculino , Ratos Endogâmicos BUF , Fator A de Crescimento do Endotélio Vascular/genética
17.
Am J Case Rep ; 22: e932514, 2021 Oct 20.
Artigo em Inglês | MEDLINE | ID: mdl-34669689

RESUMO

BACKGROUND Alveolar soft-part sarcoma is an uncommon mesenchymal tumor accounting for approximately 0.7% of soft tissue sarcomas in adults. It mainly affects young adults, with a peak incidence between 15 and 35 years old. Available data indicate that surgical resection with adjuvant therapy using tyrosine kinase inhibitor may be considered the standard treatment. The rarity of the disease and resultant data scarcity makes it difficult to establish treatment guidelines. CASE REPORT We present the 9-year follow-up of a 24-year-old patient with an initially advanced (stage IV), huge, 21-cm alveolar soft-part sarcoma of the retroperitoneum. During the observation period, the patient developed pulmonary, brain, and bone metastases. In the course of treatment, she underwent excision of the main tumor, excision of satellite tumors, and brain metastasectomies, and was treated with sunitinib, pazopanib, and radiotherapy. No similar case reports were found in the PubMed database. CONCLUSIONS Our multimodal approach resulted in a long period of stable disease. Late progression may occur; therefore, frequent and thorough imaging evaluation of such patients is crucial. Our case is one of the largest ASPS tumors reported, and her long-term successful treatment makes this report valuable, considering the scarcity of data regarding treatment of ASPS. Further large-cohort, multi-center studies are necessary to establish the best treatment.


Assuntos
Neoplasias Ósseas , Sarcoma Alveolar de Partes Moles , Neoplasias de Tecidos Moles , Adolescente , Adulto , Feminino , Seguimentos , Humanos , Sarcoma Alveolar de Partes Moles/cirurgia , Neoplasias de Tecidos Moles/terapia , Adulto Jovem
18.
Eur J Heart Fail ; 23(7): 1134-1143, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-33932262

RESUMO

AIMS: Inappropriate control of blood volume redistribution may be a mechanism responsible for exercise intolerance in heart failure with preserved ejection fraction (HFpEF). We propose to address this underlying pathophysiology with selective blockade of sympathetic signalling to the splanchnic circulation by surgical ablation of the right greater splanchnic nerve (GSN). METHODS AND RESULTS: In a single-arm, prospective, two-centre trial, 10 patients with HFpEF (50% male, mean age 70 ± 3 years) all with New York Heart Association (NYHA) class III, left ventricular ejection fraction >40%, pulmonary capillary wedge pressure (PCWP) ≥15 mmHg at rest or ≥25 mmHg with supine cycle ergometry, underwent ablation of the right GSN via thoracoscopic surgery. Patients were evaluated at baseline, 1, 3, 6 and 12 months after the procedure. The primary endpoint was a reduction in exercise PCWP at 3 months. There were no adverse events related to the blockade of the nerve during 12-month follow-up but three patients had significant peri-procedural adverse events related to the surgical procedure itself. At 3 months post-GSN ablation, patients demonstrated a reduction in 20 W exercise PCWP when compared to baseline [-4.5 mmHg (95% confidence interval, CI -14 to -2); P = 0.0059], which carried over to peak exercise [-5 mmHg (95% CI -11 to 0; P = 0.016). At 12 months, improvements were seen in NYHA class [3 (3) vs. 2 (1, 2); P = 0.0039] and quality of life assessed with the Minnesota Living with Heart Failure Questionnaire [60 (51, 71) vs. 22 (16, 27); P = 0.0039]. CONCLUSION: In this first-in-human study, GSN ablation in HFpEF proved to be feasible, with a suggestion of reduced cardiac filling pressure during exercise, improved quality of life and exercise capacity.


Assuntos
Insuficiência Cardíaca , Idoso , Cateterismo Cardíaco , Feminino , Insuficiência Cardíaca/cirurgia , Humanos , Masculino , Estudos Prospectivos , Qualidade de Vida , Nervos Esplâncnicos/cirurgia , Volume Sistólico , Função Ventricular Esquerda
19.
J Stroke Cerebrovasc Dis ; 30(4): 105608, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33461024

RESUMO

OBJECTIVES: There has been a growing interest in whether carotid revascularization may reverse cognitive decline. In this study the aim was to assess cognitive changes after carotid artery endarterectomy and stenting, using neuropsychological assessment with MoCA and CANTAB test. MATERIALS AND METHODS: Seventy patients with asymptomatic carotid artery stenosis, qualified for CEA (study group A) and CAS (study group B) have been prospectively assessed. 20 patients with lower extremity artery disease (control group C) and 15 patients qualified for inguinal hernia surgery (control group D) have served as a control group. Patients have been evaluated 1 day before surgery and 6 months after, using MoCA and CANTAB test. Logistic regression models were built to determine variables affecting cognitive performance. RESULTS: After the procedure in the study group A the cognitive evaluation showed improvement in 5 cognitive domains tested in MoCA: visuospatial/executive (p=.0496), naming (p=.0831), language (p=.0009), abstraction (p=.0126) and delayed recall (p=.0016). In CANTAB there were improvement in PAL (p=.0290) and SWM (p=.0105). In study group B positive cognitive changes were seen in visuospatial/executive (p=.0827) and delayed recall (p=.0041) tested with MoCA and in PAL (PALFAMS28 p=.0315, PALNPR28 p=.0090, PALTEA28 p=.0058) and SWM (p=.0882) tested with CANTAB. Using a regression model, the only strong predictors of cognitive improvement on the follow-up visit were younger age and lower MoCA score on the first visit. CONCLUSIONS: Carotid revascularization, both open and endovascular, lead to cognitive improvement in patients with severe carotid stenosis and cognitive decline. This effect seems to be stronger in younger patients with worst cognitive performance before surgery.


Assuntos
Estenose das Carótidas/cirurgia , Cognição , Disfunção Cognitiva/psicologia , Endarterectomia das Carótidas , Procedimentos Endovasculares , Fatores Etários , Idoso , Doenças Assintomáticas , Estenose das Carótidas/complicações , Estenose das Carótidas/diagnóstico por imagem , Estudos de Casos e Controles , Disfunção Cognitiva/diagnóstico , Disfunção Cognitiva/etiologia , Procedimentos Endovasculares/instrumentação , Feminino , Humanos , Masculino , Testes Neuropsicológicos , Estudos Prospectivos , Recuperação de Função Fisiológica , Índice de Gravidade de Doença , Stents , Fatores de Tempo , Resultado do Tratamento
20.
J Cardiovasc Transl Res ; 14(3): 409-415, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-32875492

RESUMO

Critical leg ischemia (CLI) complicated by diabetes mellitus (DM), which is a very common and dangerous disease, represents the ultimate stage of peripheral arterial disease. Patients are treated with antiplatelet drugs, statins and limb revascularization, but a significant number of patients are not candidate for revascularization. Literature shows that in such cases, gene therapy could be a perfect therapeutic option. The aim of our study was to evaluate efficacy of double vascular endothelial growth factor/hepatocyte growth factor (VEGF/HGF) gene therapy in patients with CLI complicated by DM. We observed that 90 days after administration, serum level of VEGF and ankle-brachial index increased significantly (p < 0.001) and rest pain decreased significantly compared with the control group (p < 0.002). Moreover considerable improvement in vascularization was observed in computed tomography angiography (P = 0.04). Based on the results of this study, we suggest that the therapy with pIRES/VEGF165/HGF bicistronic plasmid administration is a safe and effective method of treatment of patients with both CLI and DM. Graphical abstract.


Assuntos
Diabetes Mellitus Tipo 2/terapia , Terapia Genética , Fator de Crescimento de Hepatócito/genética , Isquemia/terapia , Neovascularização Fisiológica , Doença Arterial Periférica/terapia , Fator A de Crescimento do Endotélio Vascular/genética , Idoso , Idoso de 80 Anos ou mais , Biomarcadores/sangue , Glicemia/metabolismo , Estado Terminal , Diabetes Mellitus Tipo 2/sangue , Diabetes Mellitus Tipo 2/genética , Diabetes Mellitus Tipo 2/fisiopatologia , Feminino , Estado Funcional , Humanos , Sítios Internos de Entrada Ribossomal/genética , Isquemia/sangue , Isquemia/genética , Isquemia/fisiopatologia , Masculino , Pessoa de Meia-Idade , Doença Arterial Periférica/sangue , Doença Arterial Periférica/genética , Doença Arterial Periférica/fisiopatologia , Plasmídeos/genética , Polônia , Recuperação de Função Fisiológica , Fatores de Tempo , Resultado do Tratamento , Fator A de Crescimento do Endotélio Vascular/sangue
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