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1.
Ann Surg Oncol ; 28(1): 222-230, 2021 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-32779050

RESUMEN

OBJECTIVE: The purpose of this study was to evaluate the feasibility and safety in terms of prognostic significance and perioperative morbidity and mortality of cytoreduction in patients affected by advance ovarian cancer and hepato-biliary metastasis. METHODS: Patients with a least one hepatobiliary metastasis who have undergone surgical treatment with curative intent of were considered for the study. Perioperative complications were evaluated and graded with Accordion severity Classification. Five-year PFS and OS were estimated using the Kaplan-Meier curve. RESULTS: Sixty-seven (20.9%) patients had at least one metastasis to the liver, biliary tract, or porta hepatis. Forty-four (65.7%) and 23 (34.3%) patients underwent respectively high and intermediate complexity surgery according. Complete cytoreduction was achieved in 48 (71.6%) patients with hepato-biliary disease. In two patients (2.9%) severe complications related to hepatobiliary surgery were reported. The median PFS for the patients with hepato-biliary involvement (RT = 0 vs. RT > 0) was 19 months [95% confidence interval (CI) 16.2-21.8] and 8 months (95% CI 6.1-9.9). The median OS for the patients with hepato-biliary involvement (RT = 0 vs. RT > 0) 45 months (95% CI 21.2-68.8 months) and 23 months (95% CI 13.9-32.03). CONCLUSIONS: Hepatobiliary involvement is often associated with high tumor load and could require high complex multivisceral surgery. In selected patients complete cytoreduction could offer survival benefits. Morbidity related to hepatobiliary procedures is acceptable. Careful evaluation of patients and multidisciplinary approach in referral centers is mandatory.


Asunto(s)
Enfermedades del Sistema Digestivo , Neoplasias Ováricas , Carcinoma Epitelial de Ovario , Procedimientos Quirúrgicos de Citorreducción , Femenino , Humanos , Neoplasias Ováricas/cirugía , Pronóstico , Estudios Retrospectivos
2.
Oncology ; 98(9): 603-611, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32492692

RESUMEN

OBJECTIVES: To analyze the diagnostic accuracy of two-dimensional (2D) and three-dimensional transvaginal ultrasound (3D TV-US) for evaluation of parametrial status in locally advanced cervical cancer patients after neoadjuvant chemotherapy (NACT), using histology as the gold standard. METHODS: Consecutive patients with histologically confirmed cervical cancer were staged according to FIGO (International Federation of Gynaecology and Obstetrics) criteria. All IB2-IIIB FIGO stage patients were examined by 2D and 3D TV-US and magnetic resonance imaging (MRI) at the diagnosis time (T0) and after NACT. At T0, the US evaluation of parametrial involvement was compared to MRI before treatment. The results of US and MRI examinations of parametrial status after NACT were compared with the histological specimen. RESULTS: We enroled 51 consecutive patients in the study. Before chemotherapy, clinical examination under anaesthesia identified parametrial involvement in 48 patients, ultrasonography in 46 patients, and MRI in 49 patients. The agreement between US and MRI was 94%. The sensitivity of US for parametrial status was 93.8%, with a positive predictive value of 97.8%, using MRI as the standard. The correlation between US and MRI was statistically significant (p = 0). After chemotherapy, histological examination of surgical specimens identified parametrial involvement in 3 patients. Ultrasonography correctly identified those cases with parametrial infiltration, recording a sensitivity of 100%, specificity of 90.9%, positive predictive value of 50%, and negative predictive value of 100%. The MRI had a sensitivity of 100%, specificity of 45.5%, positive predictive value of 14.3%, and negative predictive value of 100%, respectively. The concordance in the identification of the presence/absence of infiltration between US and MRI with histology was 90% (p = 0.001) and 61%, respectively, after chemotherapy treatment. Particularly, in defining the degree of infiltration, the agreement between US and MRI with histology was 90 and 58%, respectively. CONCLUSION: In locally advanced cervical cancer patients, 2D/3D TV-US can be considered accurate in the evaluation of parametrial infiltration to assess the response to NACT. It could be included as a diagnostic method in the preoperative work-up of cervical cancer.


Asunto(s)
Imagenología Tridimensional/métodos , Ultrasonografía Doppler/métodos , Neoplasias del Cuello Uterino/diagnóstico por imagen , Neoplasias del Cuello Uterino/tratamiento farmacológico , Quimioterapia Adyuvante , Femenino , Humanos , Imagen por Resonancia Magnética/métodos , Persona de Mediana Edad , Terapia Neoadyuvante , Clasificación del Tumor , Estadificación de Neoplasias , Tomografía Computarizada por Tomografía de Emisión de Positrones/métodos , Estudios Prospectivos , Neoplasias del Cuello Uterino/patología
3.
Oncology ; 98(11): 807-813, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32892198

RESUMEN

INTRODUCTION: Different imaging techniques were introduced to improve preoperative clinical staging of locally advanced cervical cancer (LACC) with transvaginal ultrasound (TV-US) or transrectal ultrasound (TR-US) representing a promising staging technique in the evaluation of the local extension of the disease for invasive tumors. The aim of this study was to evaluate the response to neoadjuvant chemotherapy (NACT) in LACC by 2D/3D ultrasound examination. MATERIALS AND METHODS: We prospectively enrolled patients affected by histologically and clinically confirmed LACC. All patients were scheduled for 3 cycles of platinum-based NACT followed by radical surgery. The ultrasound examination was performed at every cycle and within 10 days before surgery. The parameters evaluated were: the volume (automatically computed by the VOCAL software) and the mass vascularization. RESULTS: From March 2010 to March 2019, 157 women were recruited. Among these patients, 12 of them were excluded: 6 for the presence of distant metastases, 4 for rare histology, and 2 for severe comorbidities not allowing the protocol treatment. Seventeen patients after NACT were excluded because they were not amenable to radical surgery. Thus, 128 were considered for the final analysis of whom 106 (83%) were considered responders to NACT by histology. The sensibility and specificity of ultrasound with regard to the response to chemotherapy compared to histological specimen were 94 and 82%, respectively, with an accuracy of 92%. The positive predictive value and negative predictive value were 96 and 75%, respectively. Finally, we found that nonetheless there was a trend towards a continuous response to chemotherapy among patients who were considered responders to NACT at pathological examination; the major volume and vascularization index (VI) reduction were observed during the first 2 cycles (74, 71% and 47, 63%, respectively). On the contrary, non-responders showed an initial reduction of the VI (4.86 consisting of 33%, 95% CI 0.79-8.92, p = 0.013), but no significant modification in tumour volume along NACT. CONCLUSION: 2D/3D ultrasound is useful in assessing early response to NACT in patients with LACC.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias del Cuello Uterino/diagnóstico por imagen , Neoplasias del Cuello Uterino/tratamiento farmacológico , Adulto , Anciano , Quimioterapia Adyuvante , Femenino , Humanos , Imagenología Tridimensional/métodos , Persona de Mediana Edad , Terapia Neoadyuvante , Estadificación de Neoplasias , Estudios Prospectivos , Ultrasonografía/métodos , Neoplasias del Cuello Uterino/cirugía
4.
Curr Oncol Rep ; 22(3): 22, 2020 02 08.
Artículo en Inglés | MEDLINE | ID: mdl-32036457

RESUMEN

PURPOSE OF REVIEW: The aim of this review is to determine, in the light of recent evidences, the role of lymphadenectomy in ovarian cancer. RECENT FINDINGS: The lymphadenectomy in ovarian neoplasms (LION) trial reports no better outcomes and higher complication and mortality rates associated with lymphadenectomy. Even if performed by expert hands, lymphadenectomy has a cost in terms of longer operative time, blood loss, higher rates of transfusions, and intensive unit care. If on the one hand retroperitoneal staging is not correlated to survival benefits both in early and advanced ovarian cancer, on the other hand it is associated with an increased surgery-related morbidity. Surgical treatment of isolated nodal recurrences seems to be feasible and associated with survival benefits.


Asunto(s)
Carcinoma Epitelial de Ovario/patología , Escisión del Ganglio Linfático , Neoplasias Ováricas/patología , Carcinoma Epitelial de Ovario/cirugía , Femenino , Humanos , Metástasis Linfática/patología , Estadificación de Neoplasias , Neoplasias Ováricas/cirugía
5.
Ann Neurol ; 84(4): 547-555, 2018 10.
Artículo en Inglés | MEDLINE | ID: mdl-30155909

RESUMEN

OBJECTIVE: Describe the course and outcomes in a UK national cohort of neonates with vein of Galen malformation identified before 28 days of life. METHODS: Neonates with angiographically confirmed vein of Galen malformation presenting to 1 of 2 UK treatment centers (2006-2016) were included; those surviving were invited to participate in neurocognitive assessment. Results in each domain were dichotomized into "good" and "poor" categories. Cross-sectional and angiographic brain imaging studies were systematically interrogated. Logistic regression was used to explore potential outcome predictors. RESULTS: Of 85 children with neonatal vein of Galen malformation, 51 had survived. Thirty-four participated in neurocognitive assessment. Outcomes were approximately evenly split between "good" and "poor" categories across all domains, namely, neurological status, general cognition, neuromotor skills, adaptive behavior, and emotional and behavioral development. Important predictors of poor cognitive outcome were initial Bicêtre score ≤ 12 and presence of brain injury, specifically white matter injury, on initial imaging; in multivariate analysis, only Bicêtre score ≤ 12 remained significant. INTERPRETATION: Despite modern supportive and endovascular treatment, more than one-third of unselected newborns with vein of Galen malformation did not survive. Outcome was good in around half of survivors. The importance of white matter injury suggests that abnormalities of venous as well as arterial circulation are important in the pathophysiology of brain injury. Ann Neurol 2018;84:547-555.


Asunto(s)
Malformaciones de la Vena de Galeno/diagnóstico por imagen , Malformaciones de la Vena de Galeno/epidemiología , Niño , Preescolar , Estudios de Cohortes , Estudios Transversales , Procedimientos Endovasculares/métodos , Procedimientos Endovasculares/tendencias , Femenino , Humanos , Lactante , Recién Nacido , Imagen por Resonancia Magnética/métodos , Imagen por Resonancia Magnética/tendencias , Masculino , Pruebas de Estado Mental y Demencia , Estudios Retrospectivos , Reino Unido/epidemiología , Malformaciones de la Vena de Galeno/psicología , Malformaciones de la Vena de Galeno/cirugía
6.
Ann Surg Oncol ; 24(6): 1688-1697, 2017 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-27896508

RESUMEN

BACKGROUND: Primary cytoreductive surgery (PDS) followed by platinum-based chemotherapy is the cornerstone of treatment and the absence of residual tumor after PDS is universally considered the most important prognostic factor. The aim of the present analysis was to evaluate trend and predictors of 30-day mortality in patients undergoing primary cytoreduction for ovarian cancer. METHODS: Literature was searched for records reporting 30-day mortality after PDS. All cohorts were rated for quality. Simple and multiple Poisson regression models were used to quantify the association between 30-day mortality and the following: overall or severe complications, proportion of patients with stage IV disease, median age, year of publication, and weighted surgical complexity index. Using the multiple regression model, we calculated the risk of perioperative mortality at different levels for statistically significant covariates of interest. RESULTS: Simple regression identified median age and proportion of patients with stage IV disease as statistically significant predictors of 30-day mortality. When included in the multiple Poisson regression model, both remained statistically significant, with an incidence rate ratio of 1.087 for median age and 1.017 for stage IV disease. Disease stage was a strong predictor, with the risk estimated to increase from 2.8% (95% confidence interval 2.02-3.66) for stage III to 16.1% (95% confidence interval 6.18-25.93) for stage IV, for a cohort with a median age of 65 years. CONCLUSIONS: Metaregression demonstrated that increased age and advanced clinical stage were independently associated with an increased risk of mortality, and the combined effects of both factors greatly increased the risk.


Asunto(s)
Procedimientos Quirúrgicos de Citorreducción/mortalidad , Mortalidad/tendencias , Estudios Observacionales como Asunto , Neoplasias Ováricas/mortalidad , Ensayos Clínicos Controlados Aleatorios como Asunto , Femenino , Humanos , Neoplasias Ováricas/patología , Neoplasias Ováricas/cirugía , Tasa de Supervivencia
7.
Cereb Cortex ; 26(12): 4551-4562, 2016 12.
Artículo en Inglés | MEDLINE | ID: mdl-26405052

RESUMEN

In humans, invalid visual targets that mismatch spatial expectations induced by attentional cues are considered to selectively engage a right hemispheric "reorienting" network that includes the temporal parietal junction (TPJ), the inferior frontal gyrus (IFG), and the medial frontal gyrus (MFG). However, recent findings suggest that this hemispheric dominance is not absolute and that it is rather observed because the TPJ and IFG areas in the left hemisphere are engaged both by invalid and valid cued targets. Because of this, the BOLD response of the left hemisphere to invalid targets is usually cancelled out by the standard "invalid versus valid" contrast used in functional magnetic resonance imaging investigations of spatial attention. Here, we used multivariate pattern recognition analysis (MVPA) to gain finer insight into the role played by the left TPJ and IFG in reorienting to invalid targets. We found that in left TPJ and IFG blood oxygen level-dependent (BOLD) responses to invalid and valid targets were associated to different patterns of neural activity, possibly reflecting the presence of functionally distinct neuronal populations. Pattern segregation was significant at group level, it was present in almost all of the participants to the study and was observed both for targets in the left and right side of space. A control whole-brain MVPA ("Searchlight" analysis) confirmed the results obtained in predefined regions of interest and highlighted that also other areas, that is, superior parietal and frontal-polar cortex, show different patterns of BOLD response to valid and invalid targets. These results confirm and expand previous evidence highlighting the involvement of the left hemisphere in reorienting of visual attention (Doricchi et al. 2010; Dragone et al. 2015). These findings suggest that asymmetrical reorienting deficits suffered by right brain damaged patients with left spatial neglect, who have severe impairments in contralesional reorienting and less severe impairments in ipsilesional reorienting, are due to preserved reorienting abilities in the intact left hemisphere.


Asunto(s)
Atención/fisiología , Corteza Cerebral/fisiología , Percepción Visual/fisiología , Adulto , Mapeo Encefálico , Corteza Cerebral/diagnóstico por imagen , Circulación Cerebrovascular/fisiología , Medidas del Movimiento Ocular , Femenino , Lateralidad Funcional , Humanos , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad , Análisis Multivariante , Vías Nerviosas/diagnóstico por imagen , Vías Nerviosas/fisiología , Pruebas Neuropsicológicas , Oxígeno/sangre , Reconocimiento de Normas Patrones Automatizadas , Trastornos de la Percepción/fisiopatología , Tiempo de Reacción , Adulto Joven
8.
Ann Surg Oncol ; 23(7): 2176-82, 2016 07.
Artículo en Inglés | MEDLINE | ID: mdl-26597364

RESUMEN

OBJECTIVE: The aim of this study was to evaluate the feasibility and safety of type B radical hysterectomy (RH) in the management of patients affected by locally advanced cervical cancer with favorable prognostic factors (tumor diameter <40 mm, negative nodes, or lymphovascular space involvement) and clinical response to neoadjuvant chemotherapy (NACT). METHODS: The data of women undergoing platinum-based NACT followed by RH plus bilateral systematic pelvic lymphadenectomy were collected. Patients undergoing type B RH (Group A) were compared with those undergoing type C RH (Group B); a propensity-matched comparison (1:1) was carried out to minimize selection biases. Postoperative complications were reported and 5-year survival outcomes were assessed using the Kaplan-Meier model. RESULTS: Thirty-six node-negative patients undergoing type B RH (Group A) were compared with 36 propensity-matched patients undergoing type C RH (Group B). The bladder dysfunction rate was significantly lower in Group A compared with Group B (13.9 vs. 69.4 %; p < 0.0001), and no statistically significant difference in 5-year overall survival (OS) and disease-free survival (DFS) between groups was reported (OS 93.0 vs. 96.7 %, p = 0.42; DFS 88.6 and 85.5 %, p = 0.77). CONCLUSIONS: Type B RH after NACT in well-selected patients is a safe procedure that upholds the results of type C, reducing operative time and late postoperative morbidity, without detrimental effect on survival. Further prospective trials are warranted to confirm our results on a large scale.


Asunto(s)
Adenocarcinoma/cirugía , Carcinoma de Células Escamosas/cirugía , Histerectomía , Terapia Neoadyuvante , Recurrencia Local de Neoplasia/cirugía , Neoplasias del Cuello Uterino/cirugía , Adenocarcinoma/tratamiento farmacológico , Adenocarcinoma/patología , Anciano , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Carcinoma de Células Escamosas/tratamiento farmacológico , Carcinoma de Células Escamosas/patología , Quimioterapia Adyuvante , Femenino , Estudios de Seguimiento , Humanos , Persona de Mediana Edad , Invasividad Neoplásica , Recurrencia Local de Neoplasia/tratamiento farmacológico , Recurrencia Local de Neoplasia/patología , Estadificación de Neoplasias , Puntaje de Propensión , Estudios Retrospectivos , Tasa de Supervivencia , Resultado del Tratamiento , Neoplasias del Cuello Uterino/tratamiento farmacológico , Neoplasias del Cuello Uterino/patología
9.
Hum Reprod ; 31(2): 339-44, 2016 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-26682578

RESUMEN

STUDY QUESTION: Is the combined excisional/ablative technique for the treatment of ovarian endometriomas better than the traditional stripping technique in terms of recurrence rate? SUMMARY ANSWER: There is no evidence that the combined excisional/ablative technique is better than the traditional stripping technique, as similar recurrence rates were observed for the two techniques. WHAT IS KNOWN ALREADY: The stripping technique is associated with better results compared with ablative, non-excisional techniques for the treatment of ovarian endometriomas. Excisional techniques, such as stripping, have, however, been associated with reduced ovarian reserve as evaluated with anti-Mullerian hormone, and surgical techniques that better preserve the ovarian reserve are needed. STUDY DESIGN, SIZE, DURATION: A prospective, multicentre, randomized blinded clinical trial was carried out on 51 patients with bilateral endometriomas larger than 3 cm. For each patient, serving as her own control, one ovary was randomized to the stripping technique and the contralateral to the combined excisional/ablative technique. Patients were enrolled between January 2013 and April 2014. PARTICIPANTS/MATERIALS, SETTING, METHODS: Patients of reproductive age with pelvic pain and/or infertility affected by bilateral endometriomas larger than 3 cm were included (n = 51). The patients underwent laparoscopic removal of endometriomas with two different surgical techniques performed at either side after random assignment: complete removal by stripping on one side versus the combined technique, consisting of partial excisional cystectomy followed by completion with ablative surgery using bipolar coagulation, on the other side. Post-operative follow-up was performed at 1, 3 and 6 months after surgery for the evaluation of endometrioma recurrence (primary outcome) and of antral follicle count (AFC) and ovarian volumes (OVs) to assess ovarian reserve (secondary outcome). MAIN RESULTS AND THE ROLE OF CHANCE: Recurrence rates were 5.9% for the stripping technique versus 2.0% for the combined technique (odds ratio 3.00; 95% confidence interval: 0.24-157.5; P = 0.62). AFC in the ovaries treated with the stripping technique did not differ significantly from AFC in ovaries treated with the combined technique at all follow-up visits, whereas OV was significantly lower after the combined technique at the 6-month follow-up visit (P = 0.04). LIMITATIONS, REASONS FOR CAUTION: A major limitation of this study is the small sample size and particularly for ovarian reserve, the secondary outcome, for which no formal sample size calculation was performed. The lower-than-expected recurrence rates in the present series may be related to the shorter follow-up in our study compared with most studies in the literature. Further studies with larger sample sizes and longer follow-up are needed to confirm the findings of this study. The combined technique using CO2 laser energy instead of bipolar coagulation should also be evaluated. WIDER IMPLICATIONS OF THE FINDINGS: The traditional excisional technique, i.e. the stripping technique, should still be considered the gold standard approach for the surgical treatment of endometriomas. STUDY FUNDING/COMPETING INTERESTS: No commercial funding was received. The authors report no relevant conflict of interest. TRIAL REGISTRATION NUMBER: ANZCTR number ACTRN12614000653662. TRIAL REGISTRATION DATE: 23 June 2014. DATE OF FIRST PATIENT'S ENROLMENT: 1 January 2013.


Asunto(s)
Endometriosis/cirugía , Procedimientos Quirúrgicos Ginecológicos/métodos , Ovario/cirugía , Adulto , Femenino , Humanos , Folículo Ovárico/fisiología , Reserva Ovárica , Recurrencia
10.
Gynecol Oncol ; 143(2): 443-447, 2016 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-27481579

RESUMEN

OBJECTIVE: We sought to review the current evidence in order to test the efficacy of adjuvant chemotherapy in improving disease-free survival in patients affected by early stage uterine leiomyosarcoma. METHODS: On July 2016, literature was searched in order to identify trials comparing different postoperative adjuvant strategies for patients diagnosed with early stage uterine leiomyosarcoma. RESULTS: Our analysis included 360 patients: 145 (40%), 53 (15%), and 155 (43%) had chemotherapy (with or without radiotherapy), radiotherapy, and observation, respectively. Seven (2%) patients who had radiotherapy with or without chemotherapy were excluded from further analysis in order to reduce risk of biases. Administration of chemotherapy (with or without radiotherapy) did not improve outcomes in comparison to observation (OR: 0.79 (95%CI: 0.48, 1.29)), or radiotherapy (OR: 0.90 (95%CI: 0.42, 1.94)). Loco-regional recurrence rate was similar comparing patients undergoing chemotherapy (with or without radiotherapy) with having observation alone (OR: 0.84 (95%CI: 0.44, 1.60)). Similarly, pooled results suggested that chemotherapy administration did not affect distant recurrence rate in comparison to no chemotherapy (OR: 0.80 (95%CI: 0.50, 1.28)), and observation alone (OR: 0.99 (95%CI: 0.60, 1.64)). However, patients undergoing chemotherapy (with or without radiotherapy) experienced a trend towards lower risk of developing distant recurrences (OR: 0.49 (95%CI: 0.24, 1.03)) and a higher risk of developing loco-regional recurrences (OR: 3.45 (95%CI: 1.02, 11.73)) than patients undergoing radiotherapy. CONCLUSIONS: In early stage uterine leiomyosarcoma, the role of adjuvant chemotherapy remains unclear. Owing to the high recurrence rate, even in the early stage of disease, further innovative therapeutic strategies have to be tested.


Asunto(s)
Leiomiosarcoma/tratamiento farmacológico , Neoplasias Uterinas/tratamiento farmacológico , Quimioterapia Adyuvante , Femenino , Humanos , Leiomiosarcoma/patología , Estadificación de Neoplasias , Neoplasias Uterinas/patología
12.
Transfusion ; 55(10): 2516-8, 2015 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-26260740

RESUMEN

BACKGROUND: Thrombotic thrombocytopenic purpura (TTP) is a severe disorder affecting the microcirculation of multiple organs due to a systemic endothelial cell injury secondary to a deficiency in ADAMTS13 (a disintegrin and metalloprotease with thrombospondin type 1 motif, member 13) activity. TTP is a rare complication of pregnancy with a poor prognosis and high fetal mortality, especially when it occurs during the first trimester. Recent data have supported that effective treatment of TTP is plasma therapy. Unfortunately a major problem remains in the delay in diagnosis due to confounding factors between other "imitators of preeclampsia." Rapid and readily available laboratory testing to quickly diagnose TTP is desperately needed to improve care and to save mother and future child life. CASE REPORT: We describe a rare case of successful pregnancy after TTP manifestations occurring in the first trimester; most importantly, our experience represents the first case of atypical manifestation due to neurologic and kidney manifestations preceding laboratory assay alterations. RESULTS: We treated a patient with plasma replacement of 30 mL/kg/day and daily plasmapheresis in combination with continuous infusion of fresh-frozen plasma 10 mL/kg/day. The response of clinical manifestation immediately improved. At 30 weeks, the patient had multiple episodes of high blood pressure and concomitant decrease of hemoglobin and platelet count, so a cesarean section was immediately performed. She delivered a healthy female baby. CONCLUSION: Early diagnosis by ADAMTS13 activity, occasionally occurring before clinical manifestations, aided us in promptly administering commended and life-saving treatments.


Asunto(s)
Intercambio Plasmático , Preeclampsia , Complicaciones Hematológicas del Embarazo , Púrpura Trombocitopénica Trombótica , Adulto , Femenino , Humanos , Preeclampsia/sangre , Preeclampsia/diagnóstico , Preeclampsia/terapia , Embarazo , Complicaciones Hematológicas del Embarazo/sangre , Complicaciones Hematológicas del Embarazo/diagnóstico , Complicaciones Hematológicas del Embarazo/terapia , Púrpura Trombocitopénica Trombótica/sangre , Púrpura Trombocitopénica Trombótica/diagnóstico , Púrpura Trombocitopénica Trombótica/terapia
13.
J Int Neuropsychol Soc ; 21(2): 169-74, 2015 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-25697352

RESUMEN

Part B of the Trail Making Test (TMT-B) is one of the most widely used neuropsychological tests of "executive" function. A commonly held assumption is that the TMT-B can be used to detect frontal executive dysfunction. However, so far, research evidence has been limited and somewhat inconclusive. In this retrospective study, performance on the TMT-B of 55 patients with known focal frontal lesions, 27 patients with focal non-frontal lesions and 70 healthy controls was compared. Completion time and the number of errors made were examined. Patients with frontal and non-frontal lesions performed significantly worse than healthy controls for both completion time and the number of errors. However, there was no significant difference for both completion time and the number of errors when patients with frontal and non-frontal lesions were compared. Performance was also not significantly different between patients with focal lesions within different regions of the frontal lobe (orbital, left lateral, right lateral, medial). Our findings suggest that the TMT-B is a robust test for detection of brain dysfunction. However, its capacity for detecting frontal executive dysfunction appears rather limited. Clinicians should be cautious when drawing conclusions from performance on the TMT-B alone.


Asunto(s)
Lesiones Encefálicas/complicaciones , Trastornos del Conocimiento/diagnóstico , Trastornos del Conocimiento/etiología , Función Ejecutiva/fisiología , Lóbulo Frontal/patología , Prueba de Secuencia Alfanumérica , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Lesiones Encefálicas/patología , Estudios de Casos y Controles , Femenino , Humanos , Masculino , Persona de Mediana Edad , Adulto Joven
14.
Cereb Cortex ; 24(3): 691-706, 2014 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-23162045

RESUMEN

The exact anatomical localization of right hemisphere lesions that lead to left spatial neglect is still debated. The effect of confounding factors such as acute diaschisis and hypoperfusion, visual field defects, and lesion size may account for conflicting results that have been reported in the literature. Here, we present a comprehensive anatomical investigation of the gray- and white matter lesion correlates of left spatial neglect, which was run in a sample 58 patients with subacute or chronic vascular strokes in the territory of the right middle cerebral artery. Standard voxel-based correlates confirmed the role played by lesions in the posterior parietal cortex (supramarginal gyrus, angular gyrus, and temporal-parietal junction), in the frontal cortex (frontal eye field, middle and inferior frontal gyrus), and in the underlying parietal-frontal white matter. Using a new diffusion tensor imaging-based atlas of the human brain, we were able to run, for the first time, a detailed analysis of the lesion involvement of subcortical white matter pathways. The results of this analysis revealed that, among the different pathways linking parietal with frontal areas, damage to the second branch of the superior longitudinal fasciculus (SLF II) was the best predictor of left spatial neglect. The group study also revealed a subsample of patients with neglect due to focal lesion in the lateral-dorsal portion of the thalamus, which connects the premotor cortex with the inferior parietal lobule. The relevance of fronto-parietal disconnection was further supported by complete in vivo tractography dissection of white matter pathways in 2 patients, one with and the other without signs of neglect. These 2 patients were studied both in the acute phase and 1 year after stroke and were perfectly matched for age, handedness, stroke onset, lesion size, and for cortical lesion involvement. Taken together, the results of the present study support the hypothesis that anatomical disconnections leading to a functional breakdown of parietal-frontal networks are an important pathophysiological factor leading to chronic left spatial neglect. Here, we propose that different loci of SLF disconnection on the rostro-caudal axis can also be associated with disconnection of short-range white matter pathways within the frontal or parietal areas. Such different local disconnection patterns can play a role in the important clinical variability of the neglect syndrome.


Asunto(s)
Leucoencefalopatías/etiología , Trastornos de la Percepción/complicaciones , Trastornos de la Sensación/etiología , Interfaz Usuario-Computador , Campos Visuales/fisiología , Adulto , Anciano , Imagen de Difusión por Resonancia Magnética , Femenino , Lateralidad Funcional , Humanos , Procesamiento de Imagen Asistido por Computador , Modelos Lineales , Masculino , Persona de Mediana Edad , Fibras Nerviosas Mielínicas/patología , Trastornos de la Percepción/etiología , Desempeño Psicomotor/fisiología , Accidente Cerebrovascular/complicaciones
15.
Seizure ; 107: 91-103, 2023 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-37001253

RESUMEN

OBJECTIVE: Although mental health difficulties are common in people with epilepsy, their assessment and treatment are rarely incorporated into routine medical care, with detrimental effects on quality of life. Several barriers to access traditional face to face interventions have been identified, including travel restriction and shortage of appropriately trained mental health clinicians. Digital mental health interventions offer the potential to improve access to mental health treatment. The main aim of the present study is to systematically review the empirical literature to identify what digital mental health interventions for adults, children and young people with epilepsy are currently available, as well as exploring if these interventions are effective in improving mental health and wellbeing. METHODS: Searches were conducted using the MEDLINE, PsycINFO, Web of Science and Embase. The reference lists of papers collected were examined in order to identify any further relevant articles cited in peer-reviewed journals. A total of 1490 papers were identified; of these 11 were included in this review. The protocol was registered in the PROSPERO database (CRD42022318658) and the PRISMA 2020 statement was followed. RESULTS: Seven digital interventions were identified. All interventions were based predominantly on CBT and mindfulness techniques and showed promising results in reducing symptoms of depression, with some studies also reporting encouraging results in reducing anxiety and improving satisfaction with life and the quality of life of adults and children and young people with epilepsy. CONCLUSIONS: In summary, digital mental health interventions for people with epilepsy seem to be effective and have the potential to improve access to psychological interventions and reach underserved clinical populations. However, further well-powered and methodological rigorous studies are needed to confirm the effect of such interventions for people with epilepsy.


Asunto(s)
Salud Mental , Calidad de Vida , Adulto , Niño , Humanos , Adolescente , Ansiedad/terapia , Psicoterapia/métodos
17.
J Vis ; 12(7)2012 Jul 20.
Artículo en Inglés | MEDLINE | ID: mdl-22822088

RESUMEN

Several studies show that visual stimuli traveling at higher velocities are overestimated with respect to slower, or stationary, stimuli of equivalent physical duration. This effect-time dilation-relates more in general to several accounts highlighting a quantitative relationship between the amount of changes a stimulus is subject to and the perceived duration: faster stimuli, subject to a greater number of changes in space, lead to overestimated durations of displacement. In the present paper we provide evidence of a new illusory effect, in which the apparent duration of a sensory event is affected by the way a constant number of changes are delivered in time, or in time and space. Participants judged accelerating and decelerating sequences of stationary flickering stimuli (Experiments 1 and 3) and accelerating and decelerating horizontally drifting visual stimuli (Experiment 2) on the fronto-parallel plane. Acceleration and deceleration were achieved by irregular sequencing of events in time (anisochronous flicker rate) or irregular sequencing of events in time and space (anisochronous and/or anisometric drift). Despite being characterized by the same amounts of visual changes, accelerating and decelerating sequences lead to opposite duration biases (underestimation and overestimation errors, respectively). We refer to this effect in terms of ATI: Aniso-Time-Illusion. This bias was observed in both subsecond (760 ms) and suprasecond ranges (1900 ms). These data highlight how the spatio-temporal evolution of dynamic visual events, asides the overall quantity of changes they are subject to, affect the perceived amount of time they require to unfold.


Asunto(s)
Aceleración , Desaceleración , Percepción de Movimiento/fisiología , Percepción del Tiempo/fisiología , Adulto , Atención/fisiología , Femenino , Humanos , Ilusiones/fisiología , Modelos Logísticos , Masculino , Estimulación Luminosa/métodos , Psicofísica , Adulto Joven
18.
JMIR Res Protoc ; 11(11): e40261, 2022 Nov 21.
Artículo en Inglés | MEDLINE | ID: mdl-36409536

RESUMEN

BACKGROUND: Epilepsy is a common neurological disorder affecting about 1 in 100 people in the United Kingdom. Many individuals experience a lower quality of life as a result of their epilepsy diagnosis and are more likely to develop mental health problems, such as anxiety and depression. Medical interventions for this client group tend to focus on the treatment of seizures, whereas mental health disorders often remain undiagnosed and untreated. Early identification and treatment of mental health difficulties in people with epilepsy are vital to ensure better outcomes and improvements in quality of life. OBJECTIVE: The aim of this exploratory randomized controlled trial is to evaluate whether an 8-week cognitive behavioral therapy-based intervention delivered through a mobile app-ThinkNinja for Epilepsy-is a clinically effective tool to improve quality of life, mental health, and emotional well-being in a large sample of people with epilepsy and anxiety or comorbid anxiety and depression. METHODS: The study aims to recruit 184 individuals, 18 to 65 years of age, with a self-reported diagnosis of epilepsy and anxiety or comorbid anxiety and depression. Participants will be randomly assigned to the ThinkNinja for Epilepsy app condition (arm A) or the waiting-list control group (arm B). Participants in arm A will receive access to the ThinkNinja for Epilepsy app first. After 8 weeks, participants in arm B will receive the same full access to the ThinkNinja for Epilepsy app as the participants in arm A. This design will allow an initial between-subjects analysis between the two conditions as well as a within-subject analysis including all participants. The primary outcome is participants' quality of life, measured by the 10-item patient-weighted Quality of Life in Epilepsy questionnaire. The secondary outcomes include measures of anxiety, using the 7-item Generalized Anxiety Disorder assessment; depression, using the 9-item Patient Health Questionnaire; medication adherence, using the Medication Adherence Questionnaire; and impression of change, using the Patient Global Impression of Change questionnaire. RESULTS: Recruitment for this study began in March 2022 and was completed in October 2022. We expect data collection to be finalized by May 2023 and study results to be available within 12 months of the final data collection date. Results of the study will be written up as soon as possible thereafter, with the intention of publishing the outcomes in high-quality peer-reviewed journals. CONCLUSIONS: This study aims to determine the clinical efficacy and safety of the ThinkNinja for Epilepsy intervention at improving the quality of life, mental health, and emotional well-being of people with epilepsy. The findings from our study will hopefully contribute to addressing the critical gap in universal provision and accessibility of mental health and emotional well-being support for people with epilepsy. TRIAL REGISTRATION: ISRCTN Registry 16270209 (04/03/2022); https://www.isrctn.com/ISRCTN16270209. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): DERR1-10.2196/40261.

19.
Environ Sci Pollut Res Int ; 29(45): 68179-68190, 2022 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-35538341

RESUMEN

Understanding the spatial distribution patterns of microplastics (plastics < 5 mm) contributes to the assessment of sources and sinks of pollution thus providing information for the management of biota safety and overall ecosystem functionality. We chose a semi-closed study area, Lake Bracciano (Italy), to assess the environmental variability of contamination, focusing on the water compartment and the exposure of biota, specifically fish, by analysing the ingestion of microplastics. The focus of this study is to evaluate the concentration of microplastics in water (surface and column) across the lake and the ingestion of microplastics by two fish species of economic interest: Atherina boyeri and Coregonus lavaretus, inhabiting demersal and pelagic habitats respectively. Results show a surface contamination of 392,000 ± 417,000 items km-2 and a column one of 0.76 ± 1.00 items m-3. Fragments were the most abundant in surface while fibres in the column. Microplastics were found in C. lavaretus specimens, corresponding to contamination frequency of 5% and concentration of 0.15 items/fish. The main polymer found in water was polyethylene (81%); of minor percentages, there were various other polymers, including polystyrene and acrylic, which were also found in fish. As scientific literature provides few research where water and fish are simultaneously sampled, this investigation wants to contribute filling this knowledge gap by investigating for the first time a volcanic lake.


Asunto(s)
Microplásticos , Contaminantes Químicos del Agua , Animales , Ingestión de Alimentos , Ecosistema , Monitoreo del Ambiente , Peces , Lagos/análisis , Plásticos/análisis , Polietileno/análisis , Poliestirenos/análisis , Agua/análisis , Contaminantes Químicos del Agua/análisis
20.
Environ Sci Pollut Res Int ; 27(13): 14711-14722, 2020 May.
Artículo en Inglés | MEDLINE | ID: mdl-32052329

RESUMEN

Despite the exponential increase of studies on plastic debris in recent years, there are still few works focusing on the problem as it relates to inland waters: little is known about the accumulation and dispersion dynamics on lake shores, and there are no standardized sampling methods for monitoring purposes. The accumulation of plastic litter in natural habitats also threatens the resident organisms. In this paper, we investigated the abundance and accumulation of plastic particles, ranging in size from 1 to 50 mm, from the beach sediment of three volcanic lakes in Central Italy: Albano, Bracciano, and Vico. The collection was designed to define the most important variables that one must consider in order to obtain a representative sample of plastic litter in a lake environment. In view of the high heterogeneity of sampling protocols used, comparison among the obtained results is limited and sometimes impossible. By using one of the proposed sampling methodologies, and critically analyzing the results, we aimed to highlight a possible monitoring criterion and to identify specific elements that can be meaningful and representative. The samples were collected in May and September 2017. For each lake, we sampled plastic items and sediments from two beaches. Albano contained the largest amount of plastic (in weight), while Bracciano had the largest number of particles. Our observations lead us to infer that the number of particles is the parameter most sensitive to environmental variations, as well as the more suitable for monitoring with greater definition the differences between sites. Moreover, sampling should be taken in different seasons, following a sampling pattern that includes at least two beaches placed in strategic positions with respect to wind and waves.In order to identify new indicators to evaluate the entry points of plastic into the food web, we collected, from the same sites analyzed, some specimens of the Talitrid Amphipod Cryptorchestia garbinii, a detritivorous species having a critical role in debris turnover of these environments. To investigate the microplastic (MP) ingestion in natural conditions, we analyzed their digestive tracts with both Nile red staining method and micro-FTIR spectroscopy. The analyses confirmed that C. garbinii was able to ingest plastics in natural conditions. Therefore, it can signify one of the entry points for microplastics (MPs) in the trophic chain. This observation constitutes the first evidence of MP ingestion in this species.


Asunto(s)
Anfípodos , Contaminantes Químicos del Agua/análisis , Animales , Monitoreo del Ambiente , Italia , Lagos , Plásticos , Estaciones del Año
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