1
|
Paschoini VL, Nunes DC, Matias M, Nahás-Scocate ACR, Feres MFN. Accuracy of dental calcification stages for the identification of craniofacial pubertal growth spurt: proposal of referral parameters. Eur Arch Paediatr Dent 2023; 24:75-83. [PMID: 36242760 DOI: 10.1007/s40368-022-00759-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 09/30/2022] [Indexed: 10/17/2022]
Abstract
PURPOSE This study primarily aimed to assess the accuracy of radiographic dental calcification parameters for the identification of specific craniofacial growth stages. METHODS Permanent mandibular canines, premolars, and second molars of 288 patients, from 6 to 15 years old, were analysed on randomly selected panoramic radiographs, and categorised according to two calcification methods. Reproducibility analyses and data derived from panoramic records were correlated with the gold-standard method, as evaluated from lateral cephalometric teleradiographs. Accuracy tests were finally calculated, considering several cutoff points. RESULTS Dental calcification methods showed "strong" to "almost perfect" intra- and inter-examiner reproducibility. Significant, although weak correlations were observed for all parameters. Canine and first premolar calcification stage 8 and second premolar and second molar stage 7 showed higher sensitivity rates for identifying the pubertal growth spurt period, as well as the stage F for these teeth. Canine and first premolar stages 10 and H obtained higher specificity rates for identifying the absence of post-pubertal period. CONCLUSIONS The dental calcification parameters showed adequate reproducibility, in addition to significant correlations with cervical vertebrae stages. Radiographic dental calcification parameters used for the mandibular first premolar obtained high accuracy rates and were recommended for identifying specific craniofacial growth periods.
Collapse
Affiliation(s)
- V L Paschoini
- School of Dentistry of Ribeirão Preto, Department of Restorative Dentistry, University de São Paulo, Av. Café s/n, Monte Alegre, Ribeirão Preto, SP, 14040-904, Brazil.
| | - D C Nunes
- School of Dentistry of Guarulhos, Department of Orthodontics, Guarulhos University, Guarulhos, SP, Brazil
| | - M Matias
- School of Dentistry of Guarulhos, Department of Orthodontics, Guarulhos University, Guarulhos, SP, Brazil
| | - A C R Nahás-Scocate
- School of Dentistry of Guarulhos, Department of Orthodontics, Guarulhos University, Guarulhos, SP, Brazil
| | - M F N Feres
- School of Dentistry of Ribeirão Preto, Department of Pediatric Dentistry, University de São Paulo, Ribeirão Preto, SP, Brazil
| |
Collapse
|
2
|
Freire T, Fragoso AR, Matias M, Pinto JV, Marques AC, Pimentel A, Barquinha P, Huertas R, Fortunato E, Martins R, Nunes D. Enhanced solar photocatalysis of TiO2 nanoparticles and nanostructured thin films grown on paper. Nano Ex 2021. [DOI: 10.1088/2632-959x/abed40] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
Titanium dioxide nanoparticles and nanostructured thin films were simultaneously synthesized using a microwave-assisted hydrothermal method. The synthesis formed very fine particles, appearing as nanospheres in the 11 nm size range. As for the nanostructured films, they have displayed similar structural characteristics to the nanoparticles, with thickness of 130 nm. These films covered uniformly and homogenously the Whatman paper, while maintaining its flexibility. The materials processed had their photocatalytic activity assessed from rhodamine B degradation under solar radiation (91% degradation after 40 min for the powder material and 68% after 6 h for the nanostructured thin films). Reusability experiments were also carried out, revealing superior performance concerning the Degussa P25, the most common photocatalyst used. The results of the present work can be thought as an option for the existing photocatalysts activated under solar light, namely for water purification, as it simultaneously produces enhanced photocatalytic powders and photocatalytic papers fully disposable and that can be easily recycled.
Collapse
|
3
|
Griger M, Kocan L, Rapcan R, Matias M, Burianek M, Kocanova H, Rapcanova S, Mlaka J, Zahorec R, Vaskova J. Epiduroscopic intervention in patients with a failed back surgery syndrome. BRATISL MED J 2020; 121:727-732. [PMID: 32955905 DOI: 10.4149/bll_2020_119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Epiduroscopy is a percutaneous endoscopic technique with an interesting diagnostic and therapeutic potential. AIM The study was aimed to evaluate the effectiveness of this modern minimally invasive method in treating pain together with the accompanying neurological symptoms of patients with a failed back surgery syndrome (FBSS). RESULTS In the retrospective multicentre clinical study, we monitored the effect of epiduroscopic performance in 40 patients with FBSS before epiduroscopy and after 6 and 12 months. The results of the study indicated a significant improvement in back pain after 6 months, at p<0.05. At the same time, a significant improvement was observed in pain radiating to the lower limbs after 6 and 12 months at p<0.05, as well as a significant improvement in the Oswestry Disability Index of the limbs after 6 months and after 12 months (p<0.05). CONCLUSION The current summarised results indicate a significant positive effect of epiduroscopy in the treatment of chronic back pain with a reduction in radiating pain to the lower extremities and an increase in patients' quality of life after the procedure (Tab. 2, Fig. 1, Ref. 23).
Collapse
|
4
|
Matias M, Di Meglio A, Zingarello A, Michiels S, Partridge A, Bendiane M, Ducreux M, André F, Vaz Luis I. Neuropathy and health behaviors in cancer survivors treated with chemotherapy (CT). Ann Oncol 2018. [DOI: 10.1093/annonc/mdy300.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
5
|
Di Meglio A, El-Mouhebb M, Michiels S, Jones L, Martin E, Matias M, Lohmann Palhares A, Joly F, Vanlemmens L, Everhard S, Martin A, Lemonnier J, Arveux P, Cottu P, Coutant C, Del Mastro L, Partridge A, André F, Ligibel J, Vaz-Luis I. Weight loss, physical and psychological patient reported outcomes (PROs) among obese patients (pts) with early breast cancer (BC). Ann Oncol 2018. [DOI: 10.1093/annonc/mdy300.056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
6
|
Di Meglio A, El-Mouhebb M, Michiels S, Jones L, Annonay M, Zingarello A, Matias M, Everhard S, Martin A, Arveux P, Tredan O, Soulie P, Cottu P, Partridge A, Del Mastro L, Ligibel J, André F, Vaz-Luis I. Overweight, obesity and weight gain after breast cancer (BC): A prospective clinical study. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy300.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
7
|
Palomar V, Annereau M, Lezghed N, Even C, Mayache-Badis L, Iacob M, Leibu C, Matias M, Bravo P, Ferte C. High incidence of cetuximab-related infusion reactions in head and neck cancer pts (real life data). Ann Oncol 2016. [DOI: 10.1093/annonc/mdw376.23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
8
|
Fayette J, Digue L, Ferlay C, Treilleux I, Garin G, Wang Q, Hebert C, Even C, Cupissol D, Couchon-Thaunat S, Jaouen L, Guyennon A, Le Tourneau C, Lefebvre G, Mailliez A, Matias M, Degardin M, Tartas S, Clapisson G, Perol D. PIK-ORL: A phase II, multicenter trial aiming to evaluate BKM120 in monotherapy in patients (pts) with metastatic/recurrent head and neck squamous cell carcinoma (HNSCC) after failure of platin and cetuximab or anti-EGFR-based therapy. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw376.11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
9
|
Matias M, Guida A, Albiges L, Loriot Y, Massard C, Fizazi K, Escudier B. Rechallenge with axtinib in metastatic renal cell carcinoma (mRCC) - Experience from Gustave Roussy. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw373.55] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
10
|
Matias M, Aspeslagh S, Palomar V, Lanoy E, Dercle L, Even C, Ferte C, Hollebecque A, Marabelle A, Massard C, Soria JC, Postel-Vinay S. Is anti-PD-1/PD-L1 immunotherapy sensitizing for conventional cancer therapies? Ann Oncol 2016. [DOI: 10.1093/annonc/mdw378.27] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
11
|
Guida A, Matias M, Albiges L, Derosa L, Loriot Y, Massard C, Fizazi K, Escudier B. Efficacy and safety of axitinib as third line therapy in metastatic renal cell carcinoma (mRCC): retrospective analysis. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv341.24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
12
|
Guida A, Matias M, Albiges L, Derosa L, Loriot Y, Massard C, Fizazi K, Escudier B. 2626 Efficacy and safety of axitinib as third line therapy in metastatic renal cell carcinoma (mRCC): Retrospective analysis. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31443-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
13
|
Matias M, Marques T, Ferreira MA, Ribeiro L. Cat scratch disease and lymph node tuberculosis in a colon patient with cancer. BMJ Case Rep 2013; 2013:bcr-2013-010424. [PMID: 24334464 DOI: 10.1136/bcr-2013-010424] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
A 71-year-old man operated for a sigmoid tumour remained in the surveillance after adjuvant chemotherapy. After 3 years, a left axillary lymph node was visible on CT scan. The biopsy revealed a necrotising and abscessed granulomatous lymphadenitis, suggestive of cat scratch disease. The patient confirmed having been scratched by a cat and the serology for Bartonella henselae was IgM+/IgG-. Direct and culture examinations for tuberculosis were negative. The patient was treated for cat scratch disease. One year later, the CT scan showed increased left axillary lymph nodes and a left pleural effusion. Direct and cultural examinations to exclude tuberculosis were again negative. Interferon-γ release assay testing for tuberculosis was undetermined and then positive. Lymph node and pleural tuberculosis were diagnosed and treated with a good radiological response. This article has provides evidence of the importance of continued search for the right diagnosis and that two diagnoses can happen in the same patient.
Collapse
Affiliation(s)
- M Matias
- Oncology Department, Hospital de Santa Maria, Centro Hospitalar Lisboa Norte, EPE, Lisboa, Portugal
| | | | | | | |
Collapse
|
14
|
Abstract
Renal cell carcinoma (RCC) metastasis can involve any organ. Head metastasis are rare, namely tongue, scalp and nose and only a few cases have been described. The authors describe three cases of unusual presentation of head metastasis of RCC. In case 1, a 50-year-old man with RCC underwent left nephrectomy, and presented 16 months later with nasal metastasis. In case 2, a 64-year-old woman with RCC operated 12 years ago, relapsed at multiple sites including scalp, which was treated surgically. In case 3, a 47-year-old man with RCC developed metastasis in multiple organs including a mass on the tongue that was operated and was compatible with primary tumour metastasis. These cases show the importance of correct diagnosis of rare presentations and local treatment of metastasis of RCC.
Collapse
Affiliation(s)
- M Matias
- Oncology Department, Centro Hospitalar Lisboa Norte, E.P.E., Hospital de Santa Maria, Lisboa, Portugal
| | | | | | | |
Collapse
|
15
|
Marcoux MA, Matias M, Olivier F, Keck G. Review and prospect of emerging contaminants in waste--key issues and challenges linked to their presence in waste treatment schemes: general aspects and focus on nanoparticles. Waste Manag 2013; 33:2147-2156. [PMID: 23871188 DOI: 10.1016/j.wasman.2013.06.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Revised: 06/21/2013] [Accepted: 06/24/2013] [Indexed: 06/02/2023]
Abstract
The presence in waste of emerging pollutants (EPs), whose behaviours and effects are not well understood, may present unexpected health and environmental risks and risks for the treatment processes themselves. EP may include substances that are newly detected in the environment, substances already identified as risky and whose use in items is prohibited (but which may be present in old or imported product waste) or substances already known but whose recent use in products can cause problems during their future treatment as waste. Several scientific studies have been conducted to assess the presence of EP in waste, but they are mostly dedicated to a single category of substance or one particular waste treatment. In the absence of a comprehensive review focused on the impact of the presence of EP on waste treatment schemes, the authors present a review of the key issues associated with the treatment of waste containing emerging pollutants. This review presents the typologies of emerging pollutants that are potentially present in waste along with the major challenges for each treatment scheme (recycling, composting, digestion, incineration, landfilling and wastewater treatment). All conventional treatment processes are affected by these new pollutants, and they were almost never originally designed to consider these substances. In addition to these general aspects, a comprehensive review of available data, projects and future R&D needs related to the impact of nanoparticles on waste treatment is presented as a case study.
Collapse
Affiliation(s)
- M-A Marcoux
- ECOGEOS 5, rue du Jeu-de-Paume, 62000 Arras, France.
| | | | | | | |
Collapse
|
16
|
Ribeiro JTML, Ali SM, Correia L, Luis IMVD, Matias M, Amaral T, Quintela AAFG, Leitzel K, Lipton A, Costa L. Role of serum HER2 (sHER2) levels to predict acquisition of HER2 overexpression in patients with metastatic lesions of breast cancer with HER2-negative/unknown at the primary site. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e11114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
17
|
Ridker PM, Manson JE, Buring JE, Shib J, Matias M, Hennekens CH. Homocysteine and risk of cardiovascular disease among postmenopausal women. Climacteric 2009. [DOI: 10.3109/13697139909038077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
18
|
Kunstyr J, Lincova D, Mourad M, Lips M, Cermak T, Kotulak T, Blaha J, Rubes D, Matias M, Stritesky M. A retrospective analysis of Terlipressin infusion in patients with refractory hypotension after cardiac surgery. J Cardiovasc Surg (Torino) 2008; 49:381-387. [PMID: 18446125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
AIM The aim of this retrospective study was to evaluate the effectiveness of Terlipressin in the treatment of severe hypotension in cardiosurgical patients and to assess the differences between the groups of survivors and nonsurvivors. METHODS The study population was 27 patients who developed hypotension after cardiac surgery. RESULTS All surviving patients developed refractory hypotension early after extracorporeal circulation. Of the 9 nonsurvivors, 3 also experienced postcardiotomy hypotension, while the remaining 6 developed severe hypotension during sepsis. Terlipressin given continuously significantly increased the mean arterial pressure and reduced the heart rate in both groups. Norepinephrine requirements decreased significantly among survivors only. The mean pulmonary artery pressure and pulmonary capillary wedge pressure levels remained unchanged or increased insignificantly, while several liver markers in the survivor group significantly increased. CONCLUSION Terlipressin given continuously is a potent vasopressor in patients with norepinephrine-resistant postcardiotomy hypotension; however, Terlipressin treatment failed in patients who developed refractory hypotension during sepsis. We cannot recommend this therapy in such patients as it proved to be hemodynamicaly ineffective and may even worsen the circulatory situation.
Collapse
Affiliation(s)
- J Kunstyr
- Department of Anesthesia, Resuscitation and Intensive Medicine, General University Hospital, Prague, Czech Republic.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
19
|
Kremen J, Bláha J, Kopecký P, Bosanská L, Kotrlíková E, Roubícek T, Anderlová K, Svacina S, Matias M, Rulísek J, Hovorka R, Haluzík M. [The treatment of hyperglycaemia in critically ill patients: comparison of standard protocol and computer algorithm]. Vnitr Lek 2007; 53:1269-1273. [PMID: 18357861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
INTRODUCTION Hyperglycemia is commonly observed in patients hospitalized on intensive care units. It is has been demonstrated that normalization of blood glucose level using intensive insulin therapy significantly improves prognosis of these patients. The aim of our study was comparison of standard protocol of intensive insulin therapy used on cardiac surgery ICU in General University Hospital in Prague and computer algorithm MPC (Model Predictive Control). PATIENTS AND METHODS 20 patients with glycaemia higher than 6.7 mmol/l at the time of admission to ICU were included into the study, 10 subjects were randomized for standard treatment, 10 for treatment with MPC algorithm. Glycaemia was measured hourly during 48 hours, insulin infusion was rate was adjusted hourly in MPC algorithm or in 1-2 hours in standard protocol group. RESULTS Blood glucose levels were in the target range significantly longer in MPC relative to standard protocol group (26.3 +/- 2.1 hrs vs 20.3 +/- 2.5 hrs). Mean blood glucose was also lower using MPC algorithm (6.47 +/- 0.11 vs 6.72 +/- 0.23 mmol/l). On the contrary the target range was established faster using standard protocol (8.9 +/- 1.2 vs 10.3 +/- 0.9 hrs), duration of hyperglycaemia was the same in both groups (7.3 +/- 1.9 in standard protocol vs 7.3 +/- 1.3 hrs in MPC algorithm). Average 48-hours insulin dose was higher in MPC than standard protocol group (230.2 +/- 38.8 vs 199.1 +/- 27.8 IU/48 hrs). 2 hypoglycaemic episodes occured in 2 patients in standard protocol group. CONCLUSIONS Our results show that the use of MPC algorithm result in more effective blood glucose control in critically ill patients than standard protocol.
Collapse
Affiliation(s)
- J Kremen
- III. interní klinika 1. lékarské fakulty UK a VFN Praha.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
20
|
Roubícek T, Kremen J, Bláha J, Matias M, Kopecký P, Rulísek J, Anderlová K, Bosanská L, Mráz M, Chassin LJ, Hovorka R, Svacina S, Haluzík M. [Pilot study to evaluate blood glucose control by a model predictive control algorithm with variable sampling rate vs. routine glucose management protocol in peri- and postoperative period in cardiac surgery patients]. Cas Lek Cesk 2007; 146:868-873. [PMID: 18069214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
BACKGROUND Increased blood glucose levels are frequently observed in critically ill patients. Recent studies have shown that the normalization of glycemia by intensive insulin therapy decreases mortality, length of the hospitalization and number of complications. METHODS AND RESULTS The aim of this pilot study was to compare blood glucose control by an automated model predictive control algorithm with variable sampling rate (eMPC) with routine glucose management protocol (RP) in peri- and postoperative period in cardiac surgery patients. 20 patients were included into this study (14 men and 6 women, mean age 68 +/- 10 let, BMI 28.3 +/- 5.0 kg/m2). 10 patients were randomized for treatment using eMPC algorithm and 10 patients for routine protocol. All patients underwent elective cardiac surgery and were treated with continuous insulin infusion to maintain glycemia in target range 4.4-6.1 mmol/l. The study duration was 24 hours. Mean blood glucose was significantly lower in eMPC vs. RP group (5.80 +/- 0.45 vs. 7.23 +/- 0.84 mmol/l, p < 0.05). Percentage of time in target range was significantly higher in eMPC vs. RP group (67.6 +/- 8.7% vs. 27.6 +/- 15.8%, p < 0.05). Percentage of time above the target range was higher in RP vs. eMPC group. Average insulin infusion rate was higher in eMPC vs. RP group (4.18 +/- 1.19 vs. 3.24 +/- 1.43 IU/hour, p < 0.05). Average sampling interval was significantly shorter in eMPC vs. RP group (1.51 +/- 0.24 vs. 2.03 +/- 0.16 hour, p < 0.05). No severe hypoglycaemia in either group occurred during the study. CONCLUSIONS The results of our pilot study suggest that eMPC algorithm is more effective in maintaining euglycemia in peri- and post-operative period in patients after cardiac surgery and comparably safe as compared to RP.
Collapse
Affiliation(s)
- T Roubícek
- III. Interní klinika 1. LF UK a VFN, Praha.
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
21
|
Kremen J, Bláha J, Matias M, Anderlová K, Ellmerer M, Plank J, Pieber T, Svacina S, Haluzík M. [Monitoring of glucose concentration in critical patients, comparing arterial blood glucose concentrations and interstitial glucose concentration measured by microdialysis technique]. Vnitr Lek 2006; 52:777-81. [PMID: 17091600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
INTRODUCTION Recent studies have shown that normalization of blood glucose in critically ill patients by intensive insulin therapy significantly decreases their mortality and morbidity. The aim of our study was to compare interstitial glucose concentrations in subcutaneous adipose tissue (measured by microdialysis technique) and arterial blood glucose concentrations to test the suitability of subcutaneous adipose tissue for long-term placement of biosensors for glucose measurement in critically ill patients. PATIENTS AND METHODS 20 patients (16 men and 4 women) after cardiac surgery hospitalized at postoperative intensive care unit were included into the study. Mean age was 68 +/- 10 years, BMI was 28.3 +/- 3.9 year. Only patients with glycemia higher than 6.7 mmol/l at a time of admission to the ICU were included. Samples for measurement of interstitial glucose concentrations were collected in 60 minutes intervals during 48 hours using microdialysis of the subcutaneous adipose tissue. Perfusion fluid was 5% mannitol, perfusion rate was 1 microl/min. Arterial blood glucose concentration was measured in 60 minutes intervals, absolute concentrations of interstitial glucose were calculated using ionic reference technique. RESULTS Mean arterial glucose concentration during the study was 6.7 +/- 0.56 mmol/l, absolute concentration of glucose in interstitial fluid was 3.55 +/- 0.58 mmol/l. Mean correlation coefficient between arterial and interstitial concentrations was 0.77 +/- 0.15. CONCLUSION Our study demonstrated good correlation between interstitial glucose concentrations in subcutaneous adipose tissue and arterial blood glucose concentrations in post-cardiac surgery patients. Further studies are needed to evaluate this relationship in patients with more severely disturbed perfusion of subcutaneous adipose tissue.
Collapse
Affiliation(s)
- J Kremen
- III. interní klinika 1. lékarské fakulty UK a VFN, Praha.
| | | | | | | | | | | | | | | | | |
Collapse
|
22
|
|
23
|
Abstract
CONTEXT Individuals with elevated levels of homocysteine tend to have higher prevalence of cardiovascular disease. However, prospective studies of homocysteine are inconsistent and data among women are limited. OBJECTIVE To determine whether elevated homocysteine levels in healthy postmenopausal women predict risk of developing cardiovascular disease. DESIGN Prospective, nested case-control study with a mean 3-year follow-up. SETTING The Women's Health Study, an ongoing US primary prevention trial initiated in 1993. PARTICIPANTS From a total cohort of 28,263 postmenopausal women with no history of cardiovascular disease or cancer at baseline, 122 women who subsequently experienced cardiovascular events were defined as cases, and 244 age- and smoking status-matched women who remained free of disease during follow-up were defined as controls. MAIN OUTCOME MEASURES Incidence of death due to cardiovascular disease, nonfatal myocardial infarction (MI), stroke, percutaneous transluminal coronary angioplasty, or coronary artery bypass graft by baseline homocysteine level. RESULTS Of the 122 cases, there were 85 events of MI or stroke and 37 coronary revascularizations. Case subjects had significantly higher baseline homocysteine levels than controls (14.1 vs 12.4 micromol/L; P = .02). Subjects with homocysteine levels in the highest quartile had a 2-fold increase in risk of any cardiovascular event (relative risk [RR], 2.0; 95% confidence interval [CI], 1.1-3.8). This effect was largely due to an excess of cases with high levels of homocysteine; the RR for those with homocysteine levels at or higher than the 95th percentile (20.7 micromol/L) was 2.6 (95% CI, 1.1-5.7). Risk estimates were independent of traditional risk factors and were greatest for the end points of MI and stroke (RR for those with baseline homocysteine levels in the top quartile, 2.2; 95% CI, 1.1-4.6). Self-reported multivitamin supplement use at study entry was associated with significantly reduced levels of homocysteine (P<.001). However, the association between increasing quartile of homocysteine level and risk of MI or stroke remained significant in analyses controlling for baseline multivitamin supplement use (P = .003 for trend), and subgroup analyses limited to women who were (P = .02 for trend) or were not (P = .04 for trend) taking multivitamin supplements. CONCLUSIONS Among healthy postmenopausal US women, elevated levels of homocysteine moderately increased the risk of future cardiovascular disease. Whether lowering the homocysteine level reduces risk of cardiovascular events requires testing in randomized controlled trials.
Collapse
Affiliation(s)
- P M Ridker
- Division of Cardiovascular Diseases, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass 02115, USA.
| | | | | | | | | | | |
Collapse
|
24
|
Gonçalves MA, Gonçalves WJ, Matias M, Novo NF, Baracat EC, de Lima GR. [A hysteroscopic and anatomicopathological study in women with breast cancer]. Minerva Ginecol 1998; 50:341-6. [PMID: 9842200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
OBJECTIVE To study the uterine mucosa of women with breast cancer in order to evaluate the frequency of endometrial diseases. EXPERIMENTAL DESIGN Prospective, controlled study carried out from January to December 1996. SURROUNDINGS: Patients with breast cancer and normal controls from 4 out-patient university services in Porto Alegre, Brazil. PATIENTS Postmenopausal women without hormonal therapy were compared: 67 of them with breast cancer and 101 normal controls. METHODS Hysteroscopy followed by endometrial biopsy carried out in both groups as an out-patient procedure. RESULTS In patients with breast cancer, 29.85% abnormal biopsies were found as follows: 10 endometrial polyps (15.0%), 8 with proliferative changes (11.9%), 1 case of cancer (1.5%), and one case of hyperplasia (1.5%). In the control group 8% abnormal morphological findings were found, as follows: 4 (4%) with endometrial polyps and 4 (4%) with proliferative changes. The differences in abnormal biopsies were statistically significant, mainly in patients with corporal mass index above 27.3. The sensibility of hysteroscopy was 82.14%; its specificity 97.16%; its predictive positive value 85.18% and its predictive negative value 96.48% in detecting endometrial activity, for a prevalence of 16.7% of endometrial activity. CONCLUSIONS Endometrial evaluation must be included in the initial evaluation of patients with breast cancer, mainly if they were obese. Hysteroscopy, performed in out-patient basis, showed to be an adequate method to evaluate the uterine mucosa, helping to select the area of this cavity for biopsy.
Collapse
Affiliation(s)
- M A Gonçalves
- Dipartimento di Ginecologia e Ostetricia, Facoltà di Medicina, Pontificia Università Cattolica del Rio Grande do Sul, San Paulo, Brasile
| | | | | | | | | | | |
Collapse
|
25
|
Ridker PM, Buring JE, Shih J, Matias M, Hennekens CH. Prospective study of C-reactive protein and the risk of future cardiovascular events among apparently healthy women. Circulation 1998; 98:731-3. [PMID: 9727541 DOI: 10.1161/01.cir.98.8.731] [Citation(s) in RCA: 1004] [Impact Index Per Article: 38.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
BACKGROUND C-reactive protein (CRP) predicts risk of myocardial infarction (MI) and stroke among apparently healthy men, but in women, virtually no data are available. METHODS AND RESULTS CRP was measured in baseline blood samples from 122 apparently healthy participants in the Women's Health Study who subsequently suffered a first cardiovascular event and from 244 age- and smoking-matched control subjects who remained free of cardiovascular disease during a 3-year follow-up period. Women who developed cardiovascular events had higher baseline CRP levels than control subjects (P=0.0001), such that those with the highest levels at baseline had a 5-fold increase in risk of any vascular event (RR=4.8; 95% CI, 2.3 to 10.1; P=0.0001) and a 7-fold increase in risk of MI or stroke (RR=7.3; 95% CI, 2.7 to 19.9; P=0.0001). Risk estimates were independent of other risk factors, and prediction models that included CRP provided a better method to predict risk than models that excluded CRP (all P values <0.01). In stratified analyses, CRP was a predictor among subgroups of women with low as well as high risk as defined by other cardiovascular risk factors. CONCLUSIONS In these prospective data among women, CRP is a strong independent risk factor for cardiovascular disease that adds to the predictive value of risk models based on usual factors alone. (Circulation. 1998;98:731-733.)
Collapse
Affiliation(s)
- P M Ridker
- Division of Cardiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass, USA.
| | | | | | | | | |
Collapse
|