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Ruggieri S, Drago G, Longo V, Colombo P, Balzan M, Bilocca D, Zammit C, Montefort S, Scaccianoce G, Cuttitta G, Viegi G, Cibella F. Sensitization to dust mite defines different phenotypes of asthma: A multicenter study. Pediatr Allergy Immunol 2017; 28:675-682. [PMID: 28783215 DOI: 10.1111/pai.12768] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/02/2017] [Indexed: 11/27/2022]
Abstract
BACKGROUND Indoor allergens are risk factors for asthma: Thus, the characterization of indoor air quality is important for studying environment-health relationships in children. In particular, Dermatophagoides pteronyssinus is the dominant allergen for asthma. We cross-sectionally investigated the relationships among respiratory symptoms and function, airway inflammation, allergen sensitization, and indoor allergen concentration. METHODS One hundred and thirty-two children aging 10-14 years and living in a Southern Mediterranean area were evaluated by parental questionnaires. Spirometry, exhaled nitric oxide (FeNO), skin prick tests, total, and specific serum IgE analyses were performed along with the evaluation of home dust samples for the content in Der p 1 allergen. Three clusters were created on the basis of the presence/absence of wheeze in the last 12 months (Wh12m) and Der p 1-specific IgE level. RESULTS Cluster 1 (Wh12m+/high Der p 1 IgE) presented higher FeNO and poorer pulmonary function (lower FEV1 and FEF25%-75% ), while its symptom score was not different from Cluster 2 (Wh12m+/low Der p 1 IgE). Cluster 3 (Wh12m-/low IgE) showed the lowest FeNO values and pulmonary function similar to Cluster 2. Within Cluster 1, both Der p 1-specific IgE and FeNO were positively correlated with dust Der p 1. CONCLUSIONS Similar asthma phenotypes may occur in children despite differences in their atopic state. In atopic children, sensitizing allergens in the indoor environment may increase airway inflammation worsening pulmonary function. Moreover, environmental exposures may contribute to the development of asthma-like symptoms also in the absence of atopic sensitization, thus contributing to asthma overdiagnosis.
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Mulligan A, Seman M, Abramowski R, Mulkhtar AO, Zammit C, Scholes E, Long C, Neil C, Cox N. A ‘Cardiogeriatric Model’ of Care in Acute Decompensated Heart Failure: Implementation of a Multidisciplinary Approach Impacting 12-Month Readmissions in Complex Patients. Heart Lung Circ 2017. [DOI: 10.1016/j.hlc.2017.06.188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Kreitzer NP, Bonomo J, Kanter D, Zammit C. Review of Thromboelastography in Neurocritical Care. Neurocrit Care 2016; 23:427-33. [PMID: 26275677 DOI: 10.1007/s12028-015-0187-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Mulligan A, Seman M, Abramowski R, Zammit C, Scholes E, Long C, Janus E, Cowie K, Cox N, Neil C. A ‘Cardiogeriatric Model’ of Care in Acute Decompensated Heart Failure: Implementation of a Multidisciplinary Approach, Impacting 30-Day Hospital Readmission. Heart Lung Circ 2016. [DOI: 10.1016/j.hlc.2016.06.221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Schmid P, Pinder SE, Bundred N, Wheatley D, Macaskill J, Zammit C, Hu J, Price R, Shia A, Lim L, Parker P, Molinero L, Yu J, O'Brien C, Wilson T, Savage H, Derynck M, Lackner MR, Amler L, Purushotham A, Thompson A, Gendreau S. Abstract P5-13-01: Transcript analysis of PI3K and immune-related genes and gene signatures in the pre- and post-treatment samples from the window of opportunity study of anastrozole and anastrozole with pictilisib (GDC-0941) in patients with HR-positive early breast cancer (OPPORTUNE study). Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p5-13-01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: The OPPORTUNE Study randomized postmenopausal patients (pts) to receive 2-week preoperative treatment with anastrozole (ANA) plus pictilisib ("ANA+PIC" arm) or ANA alone. Patients had newly diagnosed, operable, ER+, HER2- invasive breast cancer of ≥1 cm size. The primary outcome at interim analysis (n=70) revealed that the addition of PIC significantly increased the anti-proliferative response to ANA as measured by reduction in Ki67 immunohistochemistry (IHC). Multivariate analyses suggested benefit of PIC for patients with luminal B disease (Schmid et al. SABCS 2014).
Methods: RNA expression analysis of ∼800 breast cancer-related genes was performed on patients analyzed at the interim analysis, including 14 (ANA) and 20 (ANA+PIC) patients with matched pre- and post- treatment paired tumour samples using the nCounter platform (NanoString). Differential expression of individual genes by arm was assessed using paired and moderated t-tests and statistical significance assessed through false discovery rate (FDR). Ingenuity Pathway Analysis (IPA) of differentially expressed transcripts identified pathways of relevance. Protein expression was analyzed by reverse protein array ( RPPA) in pre- and post-treatment samples.
Results: In an unsupervised analysis, down-regulation of genes associated with ER signaling was observed in patients who received single-agent ANA and ANA+PIC, which included genes that regulate the cell cycle, cell death, survival, growth and proliferation and known ER target genes (e.g., PGR, GREB1). In addition, transcripts related to growth factor signaling pathway appeared to be specifically modulated in the ANA+PIC arm, possibly via the upregulation of the expression of RTK ligands. There were no clear changes in PI3K-related phosphoproteins (e.g., AKT, S6, 4E-BP1) in the post-treatment samples by RPPA. However, known PI3K-regulated genes, IRS2 and PIK3IP1, were upregulated in the post-treatment samples and a composite PI3K gene expression signature score (O'Brien et al. 2010) was reduced in both study arms following treatment. This PI3K signature was associated with pre-treatment luminal B status (n=27) and, consistent with this finding, the baseline PI3K gene signature score in the ANA arm, but not the ANA+PIC arm, was inversely associated with the decrease in post treatment Ki67. The tumor immune microenvironment was analyzed though the use of composite gene sets. In our initial observations, analysis of pre- and post-treatment samples showed that 2-week treatment with ANA resulted in a modest increase in transcripts associated with multiple immune signatures, which was further enhanced by the addition of PIC.
Conclusions: Gene expression analysis of pre- and post-treatment samples in the OPPORTUNE study demonstrates on-target inhibition of ER and PI3K signaling networks. The analysis of additional paired samples is in progress to further assess if 2-weeks of treatment with a regimen containing an AI in patients with early breast cancer impacts the tumor immune microenvironment.
Citation Format: Schmid P, Pinder SE, Bundred N, Wheatley D, Macaskill J, Zammit C, Hu J, Price R, Shia A, Lim L, Parker P, Molinero L, Yu J, O'Brien C, Wilson T, Savage H, Derynck M, Lackner MR, Amler L, Purushotham A, Thompson A, Gendreau S. Transcript analysis of PI3K and immune-related genes and gene signatures in the pre- and post-treatment samples from the window of opportunity study of anastrozole and anastrozole with pictilisib (GDC-0941) in patients with HR-positive early breast cancer (OPPORTUNE study). [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P5-13-01.
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Jenkins V, Harder H, Cercingani M, Whiteley-Jones H, Thwaites R, Mullen L, Harrison N, Davies K, Zammit C, Sacre S. P084 Feasibility study to examine underlying mechanisms for “Chemo Fog”. Breast 2015. [DOI: 10.1016/s0960-9776(15)70129-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Bains SK, Peters AM, Zammit C, Ryan N, Ballinger J, Glass DM, Allen S, Stanton AWB, Mortimer PS, Purushotham AD. Global abnormalities in lymphatic function following systemic therapy in patients with breast cancer. Br J Surg 2015; 102:534-40. [DOI: 10.1002/bjs.9766] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Revised: 08/20/2014] [Accepted: 12/04/2014] [Indexed: 11/07/2022]
Abstract
Abstract
Background
Breast cancer-related lymphoedema (BCRL) is a result of interaction between several pathophysiological processes, and is not simply a ‘stopcock’ effect resulting from removal of axillary lymph nodes. The aim of this study was to test the hypothesis that there is a constitutional ‘global’ lymphatic dysfunction in patients who develop BCRL.
Methods
Lower-limb lymphoscintigraphy was performed in 30 women who had undergone axillary lymph node dissection at least 3 years previously, of whom 15 had BCRL and 15 did not. No patient had any clinical abnormality of the lower limb. The control group comprised 24 women with no history of cancer or lower-limb lymphoedema. 99mTc-Nanocoll was injected subcutaneously into the first webspace of each foot, followed by whole-body imaging. Scans were reported as abnormal if there was delay in lymph transport or rerouting through skin or deep system. Quantification was expressed as the percentage injected activity accumulating in ilioinguinal nodes.
Results
Mean(s.d.) ilioinguinal nodal accumulation at 150 min was significantly lower in women with BCRL than in those without (2·7(2·5) versus 5·9(4·8) per cent respectively; P = 0·006). Abnormal findings on lower-limb lymphoscintigraphy were observed in 17 of the 30 patients: ten of the 15 women who had BCRL and seven of the 15 who did not. None of the 24 control subjects had abnormal scan findings.
Conclusion
Women with BCRL had reduced lower-limb lymph drainage, supporting the hypothesis of a predisposition to BCRL. A surprisingly high proportion of patients with breast cancer also demonstrated lymphatic dysfunction, despite clinically normal lower limbs. Possible explanations could be a systemic effect of breast cancer or its treatment, or an unidentified association between breast cancer and lymphatic dysfunction. Registration number: ISRCTN84866416 (http://www.isrctn.com).
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Bains SK, Stanton AWB, Cintolesi V, Ballinger J, Allen S, Zammit C, Levick JR, Mortimer PS, Peters AM, Purushotham AD. A constitutional predisposition to breast cancer-related lymphoedema and effect of axillary lymph node surgery on forearm muscle lymph flow. Breast 2014; 24:68-74. [PMID: 25491189 DOI: 10.1016/j.breast.2014.11.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Revised: 08/13/2014] [Accepted: 11/19/2014] [Indexed: 11/24/2022] Open
Abstract
AIM The aims of this prospective study were (a) to examine the relationship between pre-operative muscle lymph flow and the predisposition to BCRL in women treated by axillary nodal surgery for breast cancer; and (b) to test the 'stopcock' hypothesis that axillary lymph node surgery impairs forearm lymph flow in the short term. METHODS (99m)Tc-nanocoll was injected intramuscularly into both forearms of women undergoing surgery for breast cancer. Lymphatic clearance rate constant, k, representing lymph flow per unit interstitial fluid volume, was measured as the fractional disappearance rate of radioactivity from the depot site by gamma camera imaging. Axillary lymph node activity was calculated as percentage injected activity. BCRL was assessed by clinical examination and upper limb perometry. RESULTS Of 38 pre-operative women, 33 attended at 8 ± 6 weeks post-operatively and 31 at 58 ± 9 weeks post-operatively. Seven patients (18%) developed BCRL. Prior to surgery the BCRL-destined patients had a higher mean k (0.0962 ± 0.034%/min) than non-BCRL patients (0.0830 ± 0.019%/min) (p = 0.10, unpaired t test). Post-operative k values were not significantly different from pre-operative, in either the ipsilateral (operated) or contralateral limb. Also, post-operative k values did not differ significantly between both upper limbs. Furthermore, there was no significant difference between pre- and post-operative axillary activity. CONCLUSION Patients who develop BCRL have high lymph flow pre-surgery, which may predispose them to lymphatic overload and failure. Axillary lymph node surgery has no early, measurable effect on forearm muscle lymph flow despite surgical disruption of routes of lymph drainage.
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Laureys G, Valentino M, Demol F, Zammit C, Muscat R, Cambron M, Kooijman R, De Keyser J. β₂-adrenergic receptors protect axons during energetic stress but do not influence basal glio-axonal lactate shuttling in mouse white matter. Neuroscience 2014; 277:367-74. [PMID: 25064060 DOI: 10.1016/j.neuroscience.2014.07.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Revised: 06/30/2014] [Accepted: 07/16/2014] [Indexed: 10/25/2022]
Abstract
In vitro studies have demonstrated that β2-adrenergic receptor activation stimulates glycogen degradation in astrocytes, generating lactate as a potential energy source for neurons. Using in vivo microdialysis in mouse cerebellar white matter we demonstrate continuous axonal lactate uptake and glial-axonal metabolic coupling of glutamate/lactate exchange. However, this physiological lactate production was not influenced by activation (clenbuterol) or blocking (ICI 118551) of β2-adrenergic receptors. In two-photon imaging experiments on ex vivo mouse corpus callosum subjected to aglycemia, β2-adrenergic activation rescued axons, whereas inhibition of axonal lactate uptake by α-cyano-4-hydroxycinnamic acid (4-CIN) was associated with severe axonal loss. Our results suggest that axonal protective effects of glial β2-adrenergic receptor activation are not mediated by enhanced lactate production.
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Hathaway CF, Zammit C, Shaheed S, Rubin G, O'Brien J. PB.02: Magnetic resonance imaging axilla: friend or foe? Breast Cancer Res 2013. [PMCID: PMC3981618 DOI: 10.1186/bcr3504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Zammit C, Knight WA. Severe traumatic brain injury in adults. EMERGENCY MEDICINE PRACTICE 2013; 15:1-28. [PMID: 23452439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 03/01/2012] [Accepted: 02/10/2013] [Indexed: 06/01/2023]
Abstract
Traumatic brain injury is the most common cause of death and disability in young people, with an annual financial burden of over $50 billion per year in the United States. Traumatic brain injury is defined by both the initial primary injury and the subsequent secondary injuries. Fundamental to emergency department management is ensuring brain perfusion, oxygenation, and preventing even brief or transient episodes of hypotension, hypoxia, and hypocapnia. Cerebral perfusion pressure is a function of intracranial pressure and systemic blood pressure, and it must be monitored and maintained. Current research is devoted towards the prevention and treatment of secondary injury. The emergency clinician must be vigilant in maintaining homeostasis while coordinating the downstream care of the patient, including the intensive care unit and/or the operating room.
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Shaheed S, Ugolini F, Yelland A, Zammit C. 504 Observational Study and Evaluation of Blue Dye-assisted Axillary Node Sampling for Axillary Staging in Early Breast Cancer. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)70569-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Jenkins V, Harder H, Babar M, Merry S, Newbury S, Kissin M, Zammit C. A pilot study to examine the experiences and attitudes of women with breast cancer towards one versus two-step axillary surgery. Breast 2012; 21:72-6. [DOI: 10.1016/j.breast.2011.08.125] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2011] [Accepted: 08/08/2011] [Indexed: 11/24/2022] Open
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Jones EF, Zammit C, Rubin G. Should we be using nonscreening symptomatic units' mammogram machines for screening? Women's attitudes and factors likely to affect whether they attend. Breast Cancer Res 2011. [PMCID: PMC3238276 DOI: 10.1186/bcr2991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Shaheed S, Ugolini F, Yelland A, Zammit C. Evaluation of the reliability of blue dye-assisted axillary node sampling in early breast cancer. Eur J Surg Oncol 2011. [DOI: 10.1016/j.ejso.2011.08.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Zammit R, Zammit C. Patient understanding of medical terminology and the role of the Multidisiplinary Team (MDT) in breast cancer care. Eur J Surg Oncol 2011. [DOI: 10.1016/j.ejso.2011.08.104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Rathinaezhil R, Zammit C. Re-excision to clear margins after breast conserving surgery for Breast Cancer -what is adequate? Eur J Surg Oncol 2011. [DOI: 10.1016/j.ejso.2011.08.081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Fabbri A, Bonijoly D, Bouc O, Bureau G, Castagnac C, Chapuis F, Galiègue X, Laude A, Le Gallo Y, Grataloup S, Ricci O, Royer-Adnot J, Zammit C. From geology to economics: Technico-economic feasibility of a biofuel-CCS system. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.egypro.2011.02.197] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Spurling KJ, Zammit C, Lozewicz S. Mains-powered hypoxic gas generation: a cost-effective and safe method to evaluate patients at risk from hypoxia during air travel. Thorax 2010; 66:731-2. [DOI: 10.1136/thx.2010.141655] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Rathinaezhil R, Zammit C. Role of preoperative chest X-ray (CXR) in patients undergoing mastectomy for primary invasive breast cancer – Is it worthwhile? Eur J Surg Oncol 2010. [DOI: 10.1016/j.ejso.2010.08.103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Abstract
The obesity epidemic is a global problem, which is set to increase over time. However, the effects of obesity on the respiratory system are often underappreciated. In this review, we will discuss the mechanical effects of obesity on lung physiology and the function of adipose tissue as an endocrine organ producing systemic inflammation and effecting central respiratory control. Obesity plays a key role in the development of obstructive sleep apnea and obesity hypoventilation syndrome. Asthma is more common and often harder to treat in the obese population, and in this study, we review the effects of obesity on airway inflammation and respiratory mechanics. We also discuss the compounding effects of obesity on chronic obstructive pulmonary disease (COPD) and the paradoxical interaction of body mass index and COPD severity. Many practical challenges exist in caring for obese patients, and we highlight the complications faced by patients undergoing surgical procedures, especially given the increased use of bariatric surgery. Ultimately, a greater understanding of the effects of obesity on the respiratory disease and the provision of adequate health care resources is vital in order to care for this increasingly important patient population.
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Rubin G, Zammit C. Breast cancer in 35 to 39 year olds and imaging: is changing to ultrasound without mammography going to be safe? What are the workload implications? Breast Cancer Res 2010. [PMCID: PMC2978881 DOI: 10.1186/bcr2717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Rathinaezhil R, Allen K, Taylor M, Berresford A, Yelland A, Zammit C. Ultrasound of axilla - does size of the lymph node metastasis matter in breast cancer? Eur J Surg Oncol 2009. [DOI: 10.1016/j.ejso.2009.07.139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Rathinaezhil R, Taylor N, Yelland A, Zammit C. Is there a role for Primary Endocrine Treatment (PET) in elderly patients (>75years) diagnosed with Breast Cancer? Eur J Surg Oncol 2008. [DOI: 10.1016/j.ejso.2008.06.112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Debourdeau P, Bory P, Zammit C, Pavic M, Colle B. Lipothymie récidivante inexpliquée: penser au syndrome d'hyperperméabilité capillaire idiopathique. Rev Med Interne 2007; 28:711-3. [PMID: 17321012 DOI: 10.1016/j.revmed.2007.01.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2006] [Revised: 01/24/2007] [Accepted: 01/24/2007] [Indexed: 11/15/2022]
Abstract
INTRODUCTION Systemic capillary leak syndrome (SCLS) is a rare disorder characterized by recurrent spontaneous episodes of hypovolaemic shock due to marked plasma shifts from the intravascular to the extravascular space. It presents as the characteristic triad of hypotension, haemoconcentration and hypoalbuminemia. CASE REPORT We describe a patient with SCLS with recurrent lipothymia who presented first with delayed oedema that was thought to be due to orlistat treatment. On the second episode the patient was seen with a pulmonary hypertension when plasma came back into vessels. On the third time the characteristic triad led to the diagnosis of SCLS. DISCUSSION SCLS should be considered in the differential diagnosis of recurrent hypovolemic shock without identifiable cause. Nevertheless, symptoms may be restricted to sole lipothymia or transient oedema or delayed hypoalbuminemia rendering the diagnosis difficult.
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