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1.
Eur Rev Med Pharmacol Sci ; 26(11): 3995-4000, 2022 06.
Article in English | MEDLINE | ID: mdl-35731071

ABSTRACT

OBJECTIVE: Helicobacter pylori (H. pylori) eradication therapy is known to increase the platelet count, but in immune thrombocytopenic purpura (ITP), the effect of H. pylori infection on the response to treatment is not clear. This study aims to determine whether the response to the first-line treatment is affected by the states of H. pylori-positivity and -negativity in ITP patients. PATIENTS AND METHODS: Adult newly diagnosed or chronic ITP patients who had not received eradication therapy for H. pylori infection were included. Characteristics of the patients, presence and severity of bleeding, initial platelet count, administered treatments, and treatment response rates were inspected. RESULTS: Of 119 total patients, 66 (55.5%) were female, 32 (26.9%) were H. pylori-positive, 87 (73.1%) were H. pylori-negative. H. pylori-positive and H. pylori-negative groups were not significantly different in terms of age (p=0.127), gender (p=0.078), diagnosis status (p=0.094) and the distribution of bleeding symptoms (p=0.712). The most common treatment was standard-dose steroid in both groups (62.5% vs. 68.9%, p=0.524). Rates of complete response, partial response, no response were comparable for the two groups (respectively, 75% vs. 73.6%, and 18.8% vs. 19.5%, and 6.2% vs. 6.9%), and there was no significant difference between the groups (p=0.283). CONCLUSIONS: It can be stated according to the present study that in ITP patients in whom treatment is indicated, the response to the first-line treatment without the administration of H. pylori eradication therapy is similar between H. pylori-positive and H. pylori-negative patients.


Subject(s)
Helicobacter Infections , Helicobacter pylori , Purpura, Thrombocytopenic, Idiopathic , Adult , Female , Helicobacter Infections/drug therapy , Humans , Male , Platelet Count , Purpura, Thrombocytopenic, Idiopathic/diagnosis , Purpura, Thrombocytopenic, Idiopathic/drug therapy , Treatment Outcome
2.
Eur Rev Med Pharmacol Sci ; 26(4): 1131-1137, 2022 Feb.
Article in English | MEDLINE | ID: mdl-35253168

ABSTRACT

OBJECTIVE: In this study, we aimed to investigate the clinicopathological features and survival of CD, which is quite rare and has many unknowns. PATIENTS AND METHODS: This study was conducted by retrospectively evaluating patients diagnosed with CD in six different centers in Turkey. RESULTS: The median age of 33 patients included in the study was 49 and 51.5% (n = 17) of these patients were women. 18 (54.5%) patients were in the hyaline vascular subtype and most of the patients were UCD (n = 20, 60.6%). The most common involvement region was head and neck (n = 19, 57.5%). The UCD group was younger than the MCD group (p=0.027). Visceral lymph node involvement was higher in MCD than in UCD (p=0.001). Similarly, it was observed that there was more hepatomegaly (p=0.035) and splenomegaly (p=0.013) in the MCD group. During the median 19.5 months follow-up period, there were no patients who died. CONCLUSIONS: It was observed that UCD and MCD are different clinical entities. Promising survival times can be achieved with surgical and systemic treatments in both subtypes of this extremely rare disease. However, this result should be supported by well-designed prospective comprehensive studies.


Subject(s)
Castleman Disease , Castleman Disease/diagnosis , Castleman Disease/pathology , Castleman Disease/therapy , Female , Humans , Lymph Nodes/pathology , Male , Prospective Studies , Retrospective Studies , Turkey/epidemiology
4.
Article in English, Spanish | MEDLINE | ID: mdl-33785321

ABSTRACT

OBJECTIVES: The aims of this study were to evaluate the relationships between textural features of the primary tumor on FDG PET images and clinical-histopathological parameters which are useful in predicting prognosis in newly diagnosed non-small cell lung cancer (NSCLC) patients. MATERIAL AND METHODS: PET/CT images of ninety (90) patients with NSCLC prior to surgery were analyzed retrospectively. All patients had resectable tumors. From the images we acquired data related to metabolism (SUVmax, metabolic tumor volume [MTV] and total lesion glycolysis [TLG]) and texture features of primary tumors. Histopathological tumor types and subgroups, degree of Ki-67 expression and necrosis rates of the primary tumor, mediastinal lymph node (MLN) status and nodal stages were recorded. RESULTS: Among the 2histologic tumor types (adenocarcinoma and squamous cell carcinoma) significant differences were present regarding metabolic parameters, Ki-67 index with higher values and kurtosis with lower values in the latter group. Textural heterogeneity was found to be higher in poorly differentiated tumors compared to moderately differentiated tumors in patients with adenocarcinoma. While Ki-67 index had significant correlations with metabolic parameters and kurtosis, tumor necrosis rate was only significantly correlated with textural features. By univariate and multivariate analyses of the imaging and histopathological factors examined, only gradient variance was significant predictive factor for the presence of MLN metastasis. CONCLUSIONS: Textural features had significant associations with histologic tumor types, degree of pathological differentiation, tumor proliferation and necrosis rates. Texture analysis has potential to differentiate tumor types and subtypes and to predict MLN metastasis in patients with NSCLC.

5.
Niger J Clin Pract ; 22(9): 1224-1228, 2019 Sep.
Article in English | MEDLINE | ID: mdl-31489858

ABSTRACT

OBJECTIVE: To study the relationship between vitamin D and thyroid antibodies with thyroid benign-malign neoplasms. MATERIALS AND METHODS: The vitamin D vitamin and thyroid antibodies of 179 patients who underwent thyroidectomy for thyroid nodule were retrospectively reviewed. RESULTS: The mean age of the patients was 44.97 ± 14.139. Vitamin D levels were 14.473 ± 4.9999 ng/ml in women and 19.584 ± 6.1981 ng/ml in men and the mean was 15.016 ± 5.3579 ng/ml. There was a significant relationship between sex and vitamin D level (P < 0, 05). Antithyroglobulin antibody (anti-TGB) had been detected in 95 patients and Antithyroid peroxidase antibody (anti TPO) in 58 patients. There was no significant relationship between vitamin D levels (P: 0, 65), anti-TPO positivity (P: 0, 86), and anti-TGB (P: 0, 12) with benign-malignant neoplasm of thyroid. There was no relationship between vitamin D and metastatic disease (P: 0, 30) as well. In addition, no association was found between malignancy and metastasis (P = 0.068, P = 0.14, P: 0, P = 0, respectively) with thyroid antibody positivity (anti TPO and/or anti TGB) in severe deficiency (<10 ng/ml) and deficiency (<20 ng/ml) of vitamin D. CONCLUSION: Vitamin D deficiency or thyroid autoantibodies did not have any significant effect on thyroid malignancies or metastatic disease separately or together.


Subject(s)
Adenoma, Oxyphilic/blood , Autoantibodies/blood , Cholecalciferol/blood , Thyroid Neoplasms/blood , Vitamin D Deficiency/complications , Adenoma, Oxyphilic/surgery , Adult , Age Distribution , Female , Humans , Male , Middle Aged , Retrospective Studies , Sex Distribution , Thyroid Neoplasms/surgery , Thyroidectomy , Vitamin D/blood , Vitamin D Deficiency/blood
6.
Pathol Res Pract ; 213(3): 227-234, 2017 Mar.
Article in English | MEDLINE | ID: mdl-28215639

ABSTRACT

GATA3, as a transcription factor, is associated with estrogen receptor (ER) expression and necessary for luminal cell differentiation in mammary glands. Association of GATA3 expression with clinicopathological parameters, molecular subtypes of tumors, disease free survival (DFS) and overall survival (OS) for breast carcinoma patients were evaluated in this study. We immunohistochemically stained GATA3, CK5/6, EGFR, CK14 and vimentin on tissue microarray blocks of 457 invasive breast carcinomas. Tumors are sub-classified as luminal A, luminal B, HER2 expressing, basal-like and null type according to their hormonal status with cerbB2, CK 5/6 and EGFR expressions. Follow-up data for 254 cases were obtained. 215/457 (47%) tumors were GATA3 positive. GATA3 expression was inversely correlated with mitotic count (p<0.0001), nuclear grade (p=0.001), histological grade (p=0.001), tumor necrosis (p=0.001), stromal lymphocytic response (p<0.01), nipple invasion (p=0.01), metastasis (p=0.03), vimentin (p=0.0003), EGFR (p=0.015) and CK14 (p=0.001) expressions; and directly associated with ER (p<0.0001) and progesterone receptor (PR) (p<0.0001) expressions. Luminal A carcinomas had the highest frequency for GATA-3 (140/245), however basal-like carcinomas had the lowest (1/42) (p<0.0001). None of the medullary and metaplastic carcinomas expressed GATA3. GATA3 was associated with good DFS and OS (p=0.001 and p=0.0009) and was an independent prognostic factor for OS. GATA3 expression, regardless of the subtype, may have a prognostic significance for breast carcinomas through its ability to promote the differentiation of luminal progenitor cells.


Subject(s)
Breast Neoplasms/metabolism , Carcinoma, Ductal, Breast/metabolism , Carcinoma, Lobular/metabolism , GATA3 Transcription Factor/metabolism , Biomarkers, Tumor/metabolism , Breast Neoplasms/mortality , Breast Neoplasms/pathology , Carcinoma, Ductal, Breast/mortality , Carcinoma, Ductal, Breast/pathology , Carcinoma, Lobular/mortality , Carcinoma, Lobular/pathology , Disease-Free Survival , ErbB Receptors/metabolism , Female , Humans , Keratin-5/metabolism , Prognosis , Survival Rate , Vimentin
8.
Eur J Trauma Emerg Surg ; 42(4): 471-476, 2016 Aug.
Article in English | MEDLINE | ID: mdl-26253886

ABSTRACT

PURPOSE: Our aim was to establish the role of hyperbilirubinemia as a predictive parameter for the prediction of either acute, or gangrenous/perforated appendicitis as well as to compare other parameters in a similar role. METHODS: Medical files of the patients who underwent appendectomies between September 2013 and September 2014 were evaluated. Age, gender, preoperative white blood cell count (WBC), neutrophil count (NEU), neutrophil percentage (NEU%), C-reactive protein (CRP), total/direct/indirect bilirubin levels, and the postoperative histopathological findings were recorded. The Fisher's exact, Pearson's χ (2), ANOVA, and Kruskal-Wallis tests while logistic regression for multivariate analysis was performed. p < 0.05 was accepted as statistically significant. RESULTS: The study group of 162 patients consisted of 97 (60 %) men and 65 (40 %) women with a median age of 36 (18-90). Histopathological examinations revealed normal appendix in 21 (13 %) patients, non-complicated acute appendicitis in 100 (62 %), and appendiceal gangrene/perforation in 41 (25 %) patients. WBC, NEU, NEU%, and CRP levels were significantly higher in cases of acute and gangrenous/perforated appendicitis (p < 0.01). Total and direct bilirubin levels were also significantly elevated in patients with acute and gangrenous/perforated appendicitis (p < 0.01). According to multivariate analysis, elevated CRP levels were associated with 14 times, elevated total bilirubin levels were associated with five times, and elevated direct bilirubin levels were associated with 36 times greater risk for appendiceal gangrene/perforation (p < 0.01, p < 0.05, p < 0.01, respectively). CONCLUSIONS: Hyperbilirubinemia, especially with elevated direct bilirubin levels, may be considered as an important marker for the prediction of appendiceal gangrene/perforation.


Subject(s)
Appendicitis/complications , Appendicitis/diagnosis , Bilirubin/blood , Hyperbilirubinemia/complications , Hyperbilirubinemia/diagnosis , Acute Disease , Adolescent , Adult , Aged , Aged, 80 and over , Appendectomy , Appendicitis/blood , Appendix/injuries , Appendix/metabolism , Biomarkers/blood , C-Reactive Protein/metabolism , Female , Gangrene/blood , Gangrene/complications , Gangrene/diagnosis , Humans , Hyperbilirubinemia/blood , Leukocyte Count , Logistic Models , Male , Middle Aged , Predictive Value of Tests , Retrospective Studies , Young Adult
10.
Drug Res (Stuttg) ; 65(1): 24-9, 2015 Jan.
Article in English | MEDLINE | ID: mdl-24668575

ABSTRACT

BACKGROUND: Levobupivacaine use is progressively increased for intrathecal anesthesia in transurethral resections. The aim was to determine ED(50) and ED(95) of intrathecal isobaric levobupivacaine by addition of 25 mcg fentanyl for patients undergoing transurethral resections. METHODS: A total of 100 patients undergoing transurethral resections with ASA I-III, were randomized to groups receiving intrathecal 0.5% isobaric levobupivacaine in doses of 6, 8, 10, 12 or 14 mg in equal volumes with 25 mcg intrathecal fentanyl addition. Sensorial block level was determined by pinprick and motor block by Bromage scale. RESULTS: Mean onset time of sensorial block in 6 mg group was significantly longer than that of sensorial block in 10 mg, 12 mg and 14 mg groups (p<0.01), 8 mg was longer than 12 mg and 14 mg (p<0.01), and 10 mg onset time of sensorial block was significantly longer than 12 mg and 14 mg (p<0.01). Mean onset time of T10 sensory level in 6 mg group was significantly longer than mean onset time of T10 sensory level in 10 mg, 12 mg and 14 mg (p<0.01), the mean onset time of T10 sensory level in 8 mg group was also significantly longer than that of 12 mg, 14 mg groups (p<0.01). ED(50) and ED(95) of levobupivacaine coadministered with 25 mcg fentanyl were 7.32 mg and 10.88 mg, respectively. CONCLUSION: Levobupivacaine with opioid co-administration can be used in doses considerably lower than doses proposed for routine use as it is a safe drug depending on its hemodynamic effects, side effects.


Subject(s)
Anesthetics, Local/administration & dosage , Bupivacaine/analogs & derivatives , Fentanyl/administration & dosage , Transurethral Resection of Prostate/methods , Aged , Analgesics, Opioid/administration & dosage , Analgesics, Opioid/adverse effects , Anesthetics, Local/adverse effects , Bupivacaine/administration & dosage , Bupivacaine/adverse effects , Dose-Response Relationship, Drug , Double-Blind Method , Fentanyl/adverse effects , Humans , Injections, Spinal , Levobupivacaine , Male , Middle Aged , Prospective Studies , Time Factors
11.
Hernia ; 14(4): 397-400, 2010 Aug.
Article in English | MEDLINE | ID: mdl-20229105

ABSTRACT

PURPOSE: An incisional hernia may occur through the incision area following a surgical operation, through the trocar opening and even through drainage exit points. Various synthetic surgical meshes have recently been used for the surgical repair of incisional hernias. In this study, we analysed the burst strength forces of heavyweight mesh and lightweight mesh in an incisional animal model. METHODS: Following experimental formation of incisional hernias in 32 Wistar albino rats, they were divided into four groups. Polypropylene suture was used for closure of the abdominal incision in Group 1. In Groups 2, 3 and 4, polyester, polypropylene + polyglactin and polypropylene meshes, respectively, were fixed on the surface of the fascia after closing the defects in the rats. Polypropylene and polyester meshes are classified as heavy mesh. Light mesh is composed of a non-absorbable part (polypropylene) and an absorbable part (polyglactin), which will disappear 80 days after implantation. The rats were sacrificed at the end of the experiment. The pullout force of the fascia and meshes were recorded by use of a digital tension meter. RESULTS: The mean pullout forces for Groups 1, 2, 3 and 4 were found to be 123.4 +/- 13.3, 292.33 +/- 17.4, 281.66 +/- 16.3 and 310.60 +/- 26.1 N, respectively. CONCLUSION: At the end of the experiment, the polypropylene (25 g/cm(2)) present in the lightweight mesh was found to lose only a small percentage of the burst strength compared to the polypropylene (85 g/cm(2)) present in the heavyweight mesh.


Subject(s)
Hernia, Ventral/surgery , Surgical Mesh , Animals , Biocompatible Materials , Biomechanical Phenomena , Disease Models, Animal , Rats , Rats, Wistar
13.
J Psychopharmacol ; 24(3): 429-31, 2010 Mar.
Article in English | MEDLINE | ID: mdl-18957477

ABSTRACT

Rabbit syndrome (RS) is a rare side effect of prolonged neuroleptic administration characterised by rapid, fine, rhythmic movements of the mouth along a vertical axis. Long-term exposure to the first generation neuroleptics has clearly been associated with RS, but little is known regarding the risk of RS because of the exposure to the newer atypical antipsychotics. Aripiprazole is a new dopaminergic agent and has been reported to be clinically useful as an antipsychotic drug with reduced extrapyramidal motor side effects. In addition, there are some case reports concerning extrapyramidal side effects, which include tardive dyskinesia, parkinsonism and RS associated with aripiprazole. We present the case of a patient who developed RS during treatment with aripiprazole. Potential mechanisms, including D2 receptor occupancy, low anticholinergic properties and dopamine hypersensitivity theory, are discussed. Although studies with aripiprazole have shown a low liability for extrapyramidal side effects, the present case emphasises the need for caution when treating patients with aripiprazole.


Subject(s)
Antipsychotic Agents/adverse effects , Dyskinesia, Drug-Induced/etiology , Piperazines/adverse effects , Quinolones/adverse effects , Aripiprazole , Dopamine D2 Receptor Antagonists , Female , Humans , Middle Aged , Syndrome
15.
J Psychopharmacol ; 23(8): 1001-3, 2009 Nov.
Article in English | MEDLINE | ID: mdl-18719043

ABSTRACT

Lamotrigine is an anticonvulsant that appears to have a mainly antidepressant effect and is indicated for the maintenance treatment of bipolar depression. Literature associated with obsessional symptoms related to lamotrigine treatment is limited. We report the emergence of obsessive symptoms during treatment with lamotrigine in a patient who subsequently experienced significant improvement after dose reduction and stopping of this medication. The obsessive symptoms associated with lamotrigine treatment were observed after the lamotrigine dose was increased to 100 mg/day. The possible mechanisms, including inhibition on the presynaptic release of glutamate and alteration of striatal dopamine uptake, are discussed. It is unclear why lamotrigine induces obsessions in some patients. Controlled studies are necessary to identify the population at risk for obsessionality in bipolar illness following treatment with lamotrigine and to investigate a possible dose-response relationship between obsessive symptoms and lamotrigine.


Subject(s)
Anticonvulsants/adverse effects , Bipolar Disorder/drug therapy , Obsessive Behavior/chemically induced , Triazines/adverse effects , Adult , Female , Humans , Lamotrigine
16.
Endocr Regul ; 42(1): 29-33, 2008 Mar.
Article in English | MEDLINE | ID: mdl-18333702

ABSTRACT

OBJECTIVE: Pure papillary thyroid carcinoma and the follicular variant papillary thyroid carcinoma are the most common subtypes of papillary thyroid carcinoma. The aim of this study was to investigate the effects of prognostic factors of these two subgroups in our series. PATIENTS AND METHODS: Histopathological type of carcinoma was retrospectively revised in 199 patients who were then divided according to such type. Patients' age and gender as well as the size and multicentricity of tumor, association with Hashimoto's thyroiditis, serum thyroglobulin and anti-thyroglobulin antibodies levels, metastatic lymph node and distant metastases status for both groups were evaluated. RESULTS: Gender, size, multicentricity of tumor, serum thyroglobulin and anti-thyroglobulin levels were similar in both groups. It was found that, although the tumor size of pure papillary thyroid carcinoma was smaller than that of follicular variant papillary thyroid carcinoma, lymph node metastases occurred more frequently when both subgroups were examined. CONCLUSION: The pathological and clinical signs of pure papillary thyroid carcinoma and follicular variant papillary thyroid carcinoma were found similar. According to these results, this study does not support the literature which claims that follicular variant papillary thyroid carcinoma is more aggressive than pure papillary thyroid carcinoma. Moreover, it could be assumed that the number of patients who are diagnosed as pure papillary thyroid carcinoma may be higher when associated with Hashimoto's thyroiditis.


Subject(s)
Carcinoma, Papillary, Follicular/diagnosis , Carcinoma, Papillary, Follicular/pathology , Carcinoma, Papillary/diagnosis , Carcinoma, Papillary/pathology , Thyroid Neoplasms/diagnosis , Thyroid Neoplasms/pathology , Adult , Aged , Aged, 80 and over , Autoantibodies/blood , Carcinoma, Papillary/surgery , Carcinoma, Papillary, Follicular/surgery , Female , Humans , Lymphatic Metastasis , Male , Middle Aged , Prognosis , Retrospective Studies , Thyroglobulin/blood , Thyroid Neoplasms/surgery , Thyroidectomy
17.
Neurocirugia (Astur) ; 18(2): 123-7, 2007 Apr.
Article in English | MEDLINE | ID: mdl-17497058

ABSTRACT

Gangliogliomas represent only 0.4% of central nervous system neoplasms and 1.3% of brain tumors. They are benign neoplasms with low morbidity and mortality and the patients usually present with seizures, but there has been no adult ganglioglioma with lytic skull lesion. A 49-year-old right handed woman suffering from generalized epileptic seizures was admitted to our hospital. She had also left hemiparesis with 4/5 motor strength. Magnetic resonance imaging and immunohistochemical studies revealed WHO Grade II ganglioglioma. Skull X-ray showed the lytic skull lesions. We have to consider gangliogliomas in the differential diagnosis of lytic skull lesions.


Subject(s)
Ganglioglioma , Skull/pathology , Supratentorial Neoplasms , Female , Ganglioglioma/diagnosis , Ganglioglioma/pathology , Ganglioglioma/physiopathology , Ganglioglioma/surgery , Humans , Magnetic Resonance Imaging , Middle Aged , Supratentorial Neoplasms/diagnosis , Supratentorial Neoplasms/pathology , Supratentorial Neoplasms/physiopathology , Supratentorial Neoplasms/surgery
18.
Neurocir. - Soc. Luso-Esp. Neurocir ; 18(2): 123-127, mar.-abr. 2007. ilus
Article in En | IBECS | ID: ibc-70306

ABSTRACT

Los gangliocitomas representan sólo el 0'4% de lostumores del sistema nervioso y el 1'3% de los tumorescerebrales. Son tumores benignos con baja mortalidad ymorbilidad y los pacientes solían presentarse con crisiscomiciales. Nunca se ha presentado un ganglioglioma enel adulto acompañado de lesión lítica craneal.Presentamos el caso de una mujer de 49 años,diestra, que había presentado crisis generalizadascon hemiparesia izquierda. La RM y el estudiohistopatológico mostraron un ganglioglioma grado II enla clasificación de la OMS y las Rx de cráneo revelaronlesiones líticas, por lo que consideramos que este tumordebe entrar en la lista del diagnóstico diferencial de laslesiones líticas craneales


Gangliogliomas represent only 0.4% of central nervoussystem neoplasms and 1.3% of brain tumors. They arebenign neoplasms with low morbidity and mortalityand the patients usually present with seizures, but therehas been no adult ganglioglioma with lytic skull lesion.A 49-year-old right handed woman sufferingfrom generalized epileptic seizures was admittedto our hospital. She had also left hemiparesis with4/5 motor strength. Magnetic resonance imaging andimmunohistochemical studies revealed WHO GradeII ganglioglioma. Skull X-ray showed the lytic skulllesions.We have to consider gangliogliomas in the differentialdiagnosis of lytic skull lesions


Subject(s)
Humans , Female , Middle Aged , Supratentorial Neoplasms/diagnosis , Supratentorial Neoplasms/surgery , Ganglioglioma/diagnosis , Ganglioglioma/surgery , Magnetic Resonance Imaging , Skull/pathology , Immunohistochemistry , Neoplasm Staging , Diagnosis, Differential
19.
Neurocir. - Soc. Luso-Esp. Neurocir ; 17(6): 542-543, nov.-dic. 2006. ilus
Article in English | IBECS | ID: ibc-140590

ABSTRACT

Spinal cord oligodendrogliomas are rare pathologies of the spinal cord, and their location at conus and/or filum terminale is even rarer. There are only 7 spinal cord oligodendrogliomas reported in the literature. Our case is the eighth spinal cord oligodendrogliomas at this location (AU)


Los oligodendrogliomas de la médula espinal son raros y su localización en el cono medular o del filum terminale son aún menos frecuentes. Sólo hay siete oligodendrogliomas de la médula encontrados en la literatura. Nuestro caso es el octavo oligodendroglioma medular con esta localización (AU)


Subject(s)
Humans , Male , Oligodendroglioma/cerebrospinal fluid , Oligodendroglioma/genetics , Spinal Cord/abnormalities , Spinal Cord/metabolism , Equisetum/chemistry , Equisetum/cytology , Oligodendroglioma/mortality , Oligodendroglioma/secondary , Spinal Cord/physiology , Spinal Cord/physiopathology , Equisetum/classification , Equisetum/metabolism
20.
Heart ; 92(5): 671-5, 2006 May.
Article in English | MEDLINE | ID: mdl-16216861

ABSTRACT

OBJECTIVE: To determine in an observational study whether N-terminal pro-brain natriuretic peptide (NT-proBNP) is raised in patients with an atrial septal defect (ASD) and whether concentrations change after interventional closure. METHODS: 12 patients (6 men, mean (SD) age 44.4 (18.6) years) with a moderate sized ASD type II (23.3 (4.5) mm, pulmonary to systemic flow ratio 2.1 (0.68)) were investigated. In all patients a magnetic resonance imaging (MRI) study was performed and NT-proBNP was assessed at baseline and early (9 (13) days) and late (138 (64) days) after intervention. RESULTS: Concentrations of NT-proBNP were found to be within the normal range at baseline (median 87 pg/ml, interquartile range 65-181 pg/ml) but increased early after the interventional closure (315 pg/ml, 133-384 pg/ml, p = 0.005 versus baseline). The increase of NT-proBNP was associated with an increase in left ventricular dimensions as assessed by MRI (left ventricular end diastolic volume 104 (27) ml to 118 (27) ml, p = 0.003). Late after ASD closure NT-proBNP returned to baseline concentrations (102 pg/ml, 82-188 pg/ml, p = 0.004 versus early follow up). CONCLUSION: These findings suggest the presence of transitory haemodynamic stress during adaptation of the left ventricle after ASD closure, which may contribute to the understanding of the pathological mechanism of acute heart failure and delayed improvement of exercise capacity after ASD closure.


Subject(s)
Heart Septal Defects, Atrial/physiopathology , Natriuretic Peptide, Brain/blood , Peptide Fragments/blood , Adult , Aged , Animals , Female , Heart Septal Defects, Atrial/blood , Heart Septal Defects, Atrial/surgery , Humans , Magnetic Resonance Angiography , Male , Middle Aged , Postoperative Care , Stroke Volume , Ventricular Dysfunction, Left/blood , Ventricular Dysfunction, Left/diagnosis , Ventricular Dysfunction, Left/physiopathology
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