Decision making for oral anticoagulants in atrial fibrillation: the ATA-AF study

BACKGROUND

Oral anticoagulants offer the best long-term protection against ischemic stroke in patients with atrial fibrillation (AF). However, vitamin K antagonists (VKA) are cumbersome to use and their prescription is far from guidelines recommendations. We report the results of a large survey on the attitudes of prescription of VKA in patients with AF.

METHODS

7148 patients were enrolled by 196 Internal Medicine (MED) and 164 Cardiology (CARD) centers, and VKA specifically analyzed. Thrombotic and hemorrhagic risks were evaluated by means of CHADS2 and CHA2DS2VASc scores, and a study-specific bleeding score (modified HAS-BLED).

RESULTS

63.9% of non-valvular patients had a CHADS2 score≥2 (MED: 75.3%-CARD: 53.1%), and 28.4% a bleeding score≥3 (41.9% MED-15.8% CARD). VKA were prescribed in 55.5% of non-valvular patients (46.3% MED and 64.2% CARD), in 81% of high-risk valvular patients and in 58.8% of the overall study population. Among patients at high risk of bleeding (score≥3), VKA were prescribed in 26.9% of subjects, while, in the subgroup at high risk of thrombosis (CHADS2 Score<2), these were prescribed in 54.4%. Age≥75, paroxysmal AF, cognitive impairment, need for assistance, CHADS2<2 and bleeding score≥3 were independent predictors of non-use of VKA.

CONCLUSIONS

Oral anticoagulants are more frequently used in CARD than in MED, plausibly due to greater complexity of MED patients. Stratification of thrombotic and hemorrhagic risk significantly drives the choice for VKA. However the fraction of patients in whom prescription or non-prescription is based on other individual characteristics is not negligible.

Probable role of Brain Natriuretic Peptide (BNP) in lung hypertension secondary to scleroderma

BACKGROUND Scleroderma, when complicated with pulmonary hypertension (PHT), presents a worse prognosis; recently treatment with new drugs seems to offer good perspectives, especially in early diagnosis and treatment. The standard approach for diagnosing PHT consists in measurement of the pulmonary artery pressure (PAP) by means of echodoppler. AIM OF INVESTIGATION Aim of this work is evaluating the significance of the NT-proBNP parameter, matched to echodoppler, in diagnosing scleroderma PHT. MATERIALS AND METHODS Sixty (60) patients, who came to observation for progressive systemic sclerosis underwent echodoppler in order to measure the PAP (normal values up to 30 mmHg). NT-proBNP was determined on serum sample using ECLIA method by Modular E170 (Roche Diagnostics); manufacturer reference values for age and gender were used. Forty-three (43) patients underwent a further NT-proBNP sampling 5 days later in order to assess parameter stability. RESULTS PHT and non- PHT patients showed statistically different (p < 0,001) medians (126 vs 69 pg/ml). No pathologic values of NT-proBNP were measured in the group with PAP < 30 mmHg, while 27% of cases who had PAP between 30 and 40 showed pathologic concentrations. The positivity ratio increases to 57% in patients showing PAP > 40 mmHg. No relevant correlation (r = 0,2) was found between PAP and NT-proBNP. Mean average between the two sampling groups was 31%. CONCLUSIONS In scleroderma patients, combination of NT-proBNP and PAP seems to improve the diagnosis of pulmonary hypertension, especially in presence of borderline pulmonary pressure values. We therefore propose the biochemical observation of NT-proBNP when PAP is > 30 mmHg and in monitoring the evolution of the pathology.

Risk factors for venous thromboembolism and prophylaxis in medical inpatients: data from the FADOI ‘‘GEMINI’’ study

Background: Though venous thromboembolism (VTE) frequently occurs in non-surgical setting, epidemiology and risk factors for VTE in unselected medical inpatients have not been extensively studied, and uncertainties remain about the prophylactic strategy in these patients. Materials and methods: In a prospective, observational, multicenter study we aimed to contemporarily assess the epidemiology of symptomatic VTE in consecutive patients hospitalized in Internal Medicine, to evaluate the impact of potential risk factors, and the attitude of internists towards thromboprophylaxis. A total of 4,846 patients were included, during the period March-September 2006. Results: Symptomatic VTE was registered in 177 (3.65%) patients; of these, 26 cases (0.55%) occurred with onset of symptoms > 48 hours after admission (‘‘hospital-acquired’’ events, primary study end-point). Previous VTE and bed resting were significantly associated with venous thromboembolism, while a trend for increased risk was documented in cancer patients. During hospital stay antithrombotic prophylaxis was globally administered in 41.6% of patients, and in 58.4% of those for which prophylaxis was recommended according to 2004 guidelines by the American College of Chest Physicians. The choice of administering tromboprophylaxis appeared qualitatively adherent to indications from randomized trials and international guidelines, and bed rest was the strongest determinant of the use of prophylaxis. Conclusions: Data from our real-world study confirm that VTE is a quite common finding in patients admitted to Internal Medicine departments, and recommended tromboprophylaxis is still underused, in particular in some patients groups. Further efforts are needed to better define the risk profile and to optimize prophylaxis in the heterogeneous setting of medical patients.

Internal medicine, complexity, evidence based medicine, almost ‘‘without evidences’’

Background: Internal medicine has been defined as the specialty of the adult medical complex patients. Complexity science suggests that illness (and health) results from complex, dynamic, and unique interactions between different components of the overall system. In a patient, complexity involves the intricate entanglement of two or more systems (e.g.; body-diseases, family, socioeconomic status, therapies). Aim of the study: To evaluate the real applicability of Evidence Based Medicne (EBM) in clinical Departments of Internal Medicine and its critical perspectives. Discussion: Habitually the internist takes decisions in these situations: a) certainty (the ideal decision is adopted and the corresponding strategy follows), b) risk (the more suitable alternative selected can be the determination of the probable value or mathematical hope) and c) uncertainty, in which decisions linked to triple agents: beliefs and personal values of the doctors (I) for their patients (II) in the society (III). In the medical decisions there are often different factors that go beyond the field of technical and scientific knowledge (family, social, economic problems, etc.) and demanding an ethical analysis of the decision. Conclusions: The ‘‘evidence-based medicine’’, as other models of care, has — in itself — some limitations. ‘‘No evidence in medicine’’ matters that the postulates of the EBM are not always applicable to the real patients of Internal Medicine wards, mostly elderly, frail, complex, with comorbidities and polipharmacy, often with cognitive dysfunction and limitation of autonomy, with psycho-emotional, social and economic problems. The interacting effects of overall involved diseases/factors and their management require more complex and individualised care than simply the sum of separate guideline components. Further innovation is required to resolve the need to enhance integration of evidence with our patients’ values at the ‘‘bedside and/or clinic’’ management.

Italian Journal of Medicine now online in ScienceDirect

Not available

Infusion of iloprost without a peristaltic pump: Safety and tolerability

Introduction: Iloprost is a potent prostacyclin (PGI2) analogue that is effective in the treatment of peripheral arterial disease, vasculitis, pulmonary hypertension, and secondary Raynaud’s phenomenon. Intravenous infusions are generally administered with the aid of a peristaltic pump to reduce the risk of adverse reactions caused by unintentional increases in the infusion rate. This increases the cost of care in terms of equipment and personnel and may limit the use of this drug. Materials and methods: We retrospectively analyzed 18,432 iloprost infusions administered between 1999 and 2009 to 272 patients with systemic sclerosis (n = 253) and 19 with peripheral arterial disease (n = 19). All infusions were administered in the day hospital over 6 h with a normal IV set-up with a roller flow regulator. Flow rates were set to deliver iloprost at 1-2 ng/kg/min. Rates were verified by direct drop counts during the first 15-20 minutes of the infusion and at each subsequent check. Results: There were no adverse events that were fatal, life-threatening, or associated with prolongation of hospitalization and very few events requiring intensive care or continuous monitoring. The latter included 4 cases of tachycardia/arrhythmia (extrasystoles in most cases), 3 cases of hypotension (systolic pressure < 80 mmHg), and 2 cases of hypertension (BP > 170/100 mmHg). All other adverse reactions were mild, reversible, and similar to those seen with iloprost infusion with peristaltic pump. Only one patient had to be switched to another prostanoid (due to intolerance). Discussion: Iloprost infusion administered with a normal IV flow regulator appears to be as safe, well tolerated, and effective as traditional infusion with a peristaltic pump.

Toward a sustainable and wise healthcare approach: potential contributions from hospital Internal Medicine Departments to reducing inappropriate medical spending

All countries are facing the question of how to maintain quality of care with shrinking health budgets, in the presence of a persistent increase in life expectancy, and with a significant growing demand for health care from aging populations and chronically ill patients. Current implementation of legislative measures is largely presented as a cost-cutting policy. With this political approach, there is a risk of services and the number of hospital beds being drastically reduced, mainly to detriment of the most vulnerable groups of the population and without considering the results obtained by each regional healthcare organization according to explicit evaluation markers. In our Scientific Society of Internal Medicine (the Federation of Associations of Hospital Doctors on Internal Medicine, FADOI), we want to support good medical practice because essential medicine is still a goal to be achieved throughout medical hospital care. We are looking for original ways to implement a sustainable and frugal hospital Internal Medicine policy by searching for wise and efficient clinical methodology to be applied in the care of patients admitted to internal medicine wards according to their real needs. We firmly believe that reinforcing a common agenda between medicine and public health, and sharing a common vision among professionals and decision makers in the planning of care, may be the greatest opportunity for any every health care reform. The future of the health care system cannot be restricted to mere cost reduction, but should aim to deliver better health care in relation to the money spent. Even in this period of austerity, new opportunities can still be found and doctors must lead efforts to meet this challenge.

The influence of physical activity performed at 20-40 years of age on cardiovascular outcomes in medical patients aged 65-75

Introduction: Several studies show that physical activity can reduce the risk of cardiovascular disease, but the vast majority of these focus on the short- to intermediate-term benefits or refer to very specific populations. This observational study was conducted to determine whether physical activity performed during the third or fourth decade of life influences the occurrence of cardiovascular events in patients aged 65-75 years. Materials and methods: We studied a cohort of 2191 unselected patients admitted to Internal Medicine Departments. Data were collected on the patients’ medical history and their physical activity level when they were 20 to 40 years old. For the latter purpose, we used a specific questionnaire to assess the levels of physical activity related to the patients’ job, daily life, leisure time, and sports. Results: Almost half (44.2%) of the patients we evaluated reported moderate-intense physical activity when they were 20-40 years old. Around one third (35.8%) of the patients had experienced at least one major cardiovascular event, and there was a slight trend towards fewer cardiovascular events in patients with histories of physical activity (mean risk reduction: 4%, multivariate analysis). More evident benefits were observed in the subgroup of patients with diabetes, where cardiovascular outcomes were much better in patients who had been physically active than in those with sedentary life-styles (mean risk reduction: 24%). Conclusions: Given its design, our study may have underestimated the cardiovascular benefits of physical activity. Nonetheless, our results suggest that moderate-intense exercise during young adulthood may have limited beneficial effects on cardiovascular disease in old age, except in specific high-risk populations (diabetic patients). More evident benefits are probably associated with regular physical activity throughout life.

Iloprost infusion by a new device as a portable syringe pump: safety, tolerability and agreement

Background Iloprost, prostacyclin (PGI2) analogue, effective in treatment of peripheral arterial disease, secondary Raynaud's phenomenon (RP) to connective tissue disease (CTD), vasculitis, pulmonary hypertension, is usually infused through peristaltic pump, or recently through a flow regulator.Materials and methods We tested a new portable syringe pump (Pompa Infonde®, Italfarmaco S.p.A., Cinisello Balsamo, Milano) on 120 patients affected by RP to CTD and cryoglobulinaemia, in iloprost therapy with a flow regulator.Results Iloprost infused through portable syringe pump is better tolerated, better appreciated by the patients and nurses and no difference was observed on therapeutic effects, with a lower incidence of side effects statistically significant. Only 3 patients were unable to tolerate the device (2 for changes in pressure and 1 for fear) and shifted to traditional method of iloprost infusion.Conclusions Iloprost infusion through the portable syringe Pompa Infonde® appears to be safe, better tolerated, more acceptable and equally effective compared to infusion through a flow regulator.

Real-world economic burden of venous thromboembolism and antithrombotic prophylaxis in medical inpatients

INTRODUCTION

Venous thromboembolism (VTE) is a significant cause of morbidity and mortality in medical patients, and the economic burden of this disease is plausibly relevant as well. However, few data from real-world observations are available on this topic. Aim of our study was to assess the costs of VTE management and antithrombotic prophylaxis in patients hospitalized in Internal Medicine (IM) departments.

MATERIALS AND METHODS

The in-hospital paths of 160 patients with VTE (VTE group) and 160 patients receiving prophylaxis and without VTE (NO-VTE group) were retrospectively evaluated within 26IM units in Italy. The economic analysis was undertaken by applying a process analysis, the initial phase of the more comprehensive Activity Based Costing technique. Accordingly to this approach, only information closely linked to VTE or its prevention was registered.

RESULTS

The total median costs for VTE management were around four-times higher than those for prophylaxis (€ 1,348.68 vs € 373.03). Human resources were the most important cost-driver (55.5% and 65.7% in the VTE and NO-VTE groups), followed by instrumental (24.6% in VTE and 15.5% in NO-VTE) and haematologic tests (12.6% in VTE patients and 13.3% in controls). In the NO-VTE group the direct costs for prophylaxis accounted for 4.5% of total.

CONCLUSIONS

The real-world data of this study confirm the economic burden of in-hospital treatment of VTE, and the relatively low costs of thromboprophylaxis. A greater adherence to evidence-based protocols for VTE prevention could probably reduce the current financial burden of VTE on healthcare systems.

Hospital organization based on intensity of care: potential errors to avoid

IntroductionThe extreme variability of clinical severity in medical admitted patients is diluted in a “average” standard of care, that may be stronger than the real needs for someone, but clearly inadequate, sometimes even dangerous, for other ones, critically ill.DiscussionThe model of a differentiated intensity of hospital care can be defined as the organizational model structured to areas/sectors dedicated to patients with homogeneous needs of care. The intermediate care unit (“High dependency units”, “sub-intensive care areas” – “high care units”) are particularly suitable for patients who have a lower risk compared to patients treated in intensive care, but liable to develop complications and needing a close monitoring much more than the “standard”, “routine” care. The implementation of the a new organizational model must be careful and consider the possible enlargement errors that can be made. The analysis of the context is necessary for assess prerequisites, excluding the elements opposed to the success of the proposed model (i.e.: wards congestion and overcrowding, with a consequential with increased risk of adverse events). Before implementing and admitting patients in new “models”, we have to define the epidemiological population characteristics, their level of complexity/criticality/instability and the current assessment tools.ConclusionsAny new proposal of hospital management change has, as first obligation, to explicit the basic visions and primary goals for “the added value” resulting to the patient and the whole organization, with the evidence of an “health technology assessment” approach, for the professional hospital overall governance. But without the presumption, or worse, the apodictic assertion, to proclaim the implementation of structures with “differentiated intensity of hospital care” organizations that are not.

Modeling upper limb clinical scales by robot-measured performance parameters

The status of motor function in stroke survivors and the effect of any therapeutic intervention are generally measured by physiotherapists using clinical assessment scales that probe specific aspects of a subject's motor behavior. Although they are widely accepted, these measurement tools are limited by interrater and intrarater reliability and are time-consuming to apply. This paper analyzes the changes in movement kinematics and kinetics during robot-aided neurorehabilitation of subjects after stroke and verifies the possibility of estimating outcome measures by means of a set of robot measured parameters.

Altered expression of aquaporin 4 and H+/K+-ATPase in the stomachs of peptide YY (PYY) transgenic mice

BACKGROUND INFORMATION

The hormone PYY (peptide YY), synthesized by endocrine cells in the pancreas, ileum, colon and stomach has widespread inhibitory effects on gastrointestinal and pancreatic fluid secretion. Transgenic mice expressing a viral oncoprotein under the control of the PYY gene 5'-flanking region develop well-differentiated colonic endocrine tumours producing mainly PYY and enteroglucagon. In the present study, we investigated the expression of AQP4 (aquaporin 4) water channel and H(+)/K(+)-ATPase in stomachs from both control and transgenic mice.

RESULTS

Semi-quantitative RT (reverse transcriptase)-PCR showed an increase in the AQP4 transcript compared with control mice. Quantitative Western-blot analysis of stomachs from control and transgenic mice confirmed a significant increase in the 30 kDa AQP4 protein in transgenic mice. In control mice, AQP4 is specifically expressed in the basolateral membrane of gastric parietal cells, located in the basal region of the fundic glands. This particular location suggests that parietal cells in the base region of gastric pits might have a major role in water transport when compared with the more superficial parietal cells. Interestingly, immunofluorescence studies on transgenic mice revealed that the quantitative increase of AQP4 expression was actually due to an increase in the number of AQP4-expressing epithelial cells rather than to a higher expression of AQP4 in parietal cells. In fact, immunofluorescence experiments using the specific antibody raised against the AE2 isoform of Cl(-)/HCO3- exchanger specifically expressed in parietal cells confirmed that the number of parietal cells was comparable in both PYY and control stomachs. Moreover, in transgenic mice, a parallel significant decrease in the expression of H(+)/K(+)-ATPase was observed, as revealed by RT-PCR, quantitative immunoblotting and immunofluorescence.

CONCLUSIONS

In the present study, we demonstrate that the sustained inhibition of gastric secretion due to tumours producing PYY/enteroglucagon in transgenic mice is associated with an increase in AQP4 expression and a down-regulation of H(+)/K(+)-ATPase in parietal cells that acquire the characteristics of basal parietal cells. The absence of H2 receptors-mediated signalling due to the inhibition of histamine release from ECL (enterochromaffin-like) cells by PYY may be in part responsible for the observed increase in the number of parietal cells expressing AQP4.

Depressive symptoms and disability in acute patients with comorbidities in departments of internal medicine

Introduction: There are few data on the prevalence of depression among acute patients with comorbidities. The current study aimed to determine the prevalence of depressive symptoms in hospitalized patients admitted to Internal Medicine Units and the correlation between these symptoms and comorbidities and disability indexes. Materials and methods: All consecutive patients admitted to 26 Internal Medicine Units of the Italian National Public Health System in Sicily, Italy, from September 2001 to March 2002 were screened. Within 24 hours of admission, patients were administered the Geriatric Depression Scale (GDS), Mini-Mental State Examination, Activities of Daily Living (ADL), Instrumental Activities of Daily Living (IADL) and Charlson’s Comorbidity Index. Results: 1,947 subjects were included in the analyses. Of the patients, 509 (26.1%) showed depressive symptoms (indicated by GDS score > 15). Depression was significantly associated (univariate analyses) with hypertension (OR 1.45; CI 95% 1.18-1.79), diabetes (OR 1.48, CI 95% 1.17-1.87), cerebrovascular disease (OR 1.50, CI 95% 1.08-2.07), cirrhosis (OR 1.49, CI 95% 1.01- 2.19), ADL score (OR 0.72: CI 95% 0.63-0.82), and IADL score (OR 0.83; CI 95% 0.78-0.87), but not with Charlson’s Comorbidity Index (OR 1.04; CI 95% 0.98-1.10). Multivariate analysis showed that independent predictive factors for depression were age (OR 1.02, CI 95% 1.01-1.02), female gender (OR 2.29, CI 95% 1.83 - 2.87), and IADL score (OR 0.86, CI 95% 0.81 - 0.93). Conclusions: The data suggest that depressive symptoms are not linked to worse clinical conditions but are associated with the loss of autonomy in Instrumental Activities of Daily Living.

How immigration can change the prevalence of HBV infection in an urban area of Northern Italy

The introduction of HBV vaccination in Italy has led to a decline in new HBV infections. Increasing immigration over recent years suggests a change in short-term epidemiology of HBV. The aim of this study was to assess the prevalence of HBV infection in the general population living in the catchment area of Legnano Hospital (Northern Italy). In the period 2007-2008, 22,758 inpatients and outpatients were examined for Hepatitis B surface antigen (HBsAg), of whom 1,654 (7.3%) were of foreign origin. Of the 488 patients who were positive for HBsAg (2.1%), 381 (1.8%) were Italian and 107 (6.5%) were born in other countries. In terms of age, the prevalence of HBsAg was significantly higher among non- Italians in every age group (other than those aged &gt;60 and &lt;11 years), and in many of the selected subgroups: the inpatients of some departments (35.4% vs 17.2%), pregnant women (5.3% vs 0.3%), blood donors (4.7% vs 0.1%), and hospital staff (6.4% vs 1.3%). Non- Italians were affected by 16.7% of acute infections and 24.3% of chronic infections; they also accounted for 42.6% of subjects with carrier state, 16.0% of patients with chronic hepatitis, and 12.2% of patients with cirrhosis. In our area, the overall prevalence of HBsAg among Italians is less than 2% (as expected following the introduction of HBV vaccination), but it is significantly higher among patients from areas highly endemic for HBV infection who represent a new reservoir for HBV infection.

Development of a progressive task regulation algorithm for robot-aided rehabilitation

Patient motivation is an important factor in rehabilitation. The difficulty level of the motor task, the awareness of the performance obtained, and the quantity and quality of feedbacks presented to the patient can influence patient motivation and produce different ways of acting and different performances. This study presents a Progressive Task Regulation algorithm able to evaluate the patient's performance during training and automatically change the features of the reaching movement, so as to adapt automatically the difficulty level of the motor task to the patient's ability. Use of the progressive task regulation algorithm should promote patient motivation throughout the course of treatment.

Development of a five-year mortality model in systemic sclerosis patients by different analytical approaches

OBJECTIVES

Systemic sclerosis (SSc) is a multiorgan disease with high mortality rates. Several clinical features have been associated with poor survival in different populations of SSc patients, but no clear and reproducible prognostic model to assess individual survival prediction in scleroderma patients has ever been developed.

METHODS

We used Cox regression and three data mining-based classifiers (Naïve Bayes Classifier [NBC], Random Forests [RND-F] and logistic regression [Log-Reg]) to develop a robust and reproducible 5-year prognostic model. All the models were built and internally validated by means of 5-fold cross-validation on a population of 558 Italian SSc patients. Their predictive ability and capability of generalisation was then tested on an independent population of 356 patients recruited from 5 external centres and finally compared to the predictions made by two SSc domain experts on the same population.

RESULTS

The NBC outperformed the Cox-based classifier and the other data mining algorithms after internal cross-validation (area under receiving operator characteristic curve, AUROC: NBC=0.759; RND-F=0.736; Log-Reg=0.754 and Cox= 0.724). The NBC had also a remarkable and better trade-off between sensitivity and specificity (e.g. Balanced accuracy, BA) than the Cox-based classifier, when tested on an independent population of SSc patients (BA: NBC=0.769, Cox=0.622). The NBC was also superior to domain experts in predicting 5-year survival in this population (AUROC=0.829 vs. AUROC=0.788 and BA=0.769 vs. BA=0.67).

CONCLUSIONS

We provide a model to make consistent 5-year prognostic predictions in SSc patients. Its internal validity, as well as capability of generalisation and reduced uncertainty compared to human experts support its use at bedside. Available at: http://www.nd.edu/~nchawla/survival.xls.

In-hospital symptomatic venous thromboembolism and antithrombotic prophylaxis in Internal Medicine. Findings from a multicenter, prospective study

Hospitalised medical patients are at increased risk of venous thromboembolism (VTE), but the incidence of hospitalisation-related VTE in unselected medical inpatients has not been extensively studied, and uncertainties remain about the optimal use of thromboprophylaxis in this setting. Aims of our prospective, observational study were to assess the prevalence of VTE and the incidence of symptomatic, hospitalisation-related events in a cohort of consecutive patients admitted to 27 Internal Medicine Departments, and to evaluate clinical factors associated with the use of thromboprophylaxis. Between March and September 2006, a total of 4,846 patients were included in the study. Symptomatic VTE with onset of symptoms later than 48 hours after admission ("hospital-acquired" events, primary study end-point) occurred in 26 patients (0.55%), while the overall prevalence of VTE (including diagnosis prior to or at admission) was 3.65%. During hospital stay antithrombotic prophylaxis was administered in 41.6% of patients, and in 58.7% of those for whom prophylaxis was recommended according to the 2004 Guidelines of the American College of Chest Physicians. The choice of administering thromboprophylaxis or not appeared qualitatively adherent to indications from randomised clinical trials and international guidelines, and bed rest was the strongest determinant of the use of prophylaxis. Data from our real-world study confirm that VTE is a relevant complication in patients admitted to Internal Medicine Departments, and recommended tromboprophylaxis is still under-used, in particular in some patients groups. Further efforts are needed to better define risk profile and to optimise prophylaxis in the heterogeneous setting of medical inpatients.

The first case of osteoma in the false vocal fold

OBJECTIVES

This article reports the first evidence of a larynx osteoma of the false vocal fold.

STUDY DESIGN

Case report and literature review.

METHODS

Case report and review of previously published cases of larynx osteomas.

RESULTS

A 79-year-old patient was referred to our institution for dysphagia and hoarseness. Fibrolaryngoscopy showed a regular surface tumefaction of the false fold and the left ventricle, with preserved cordal motility. Patient underwent direct laryngoscopy with CO(2) laser excision of the lesion. Pathologic examination of the lesion (1.6cmx1cm) showed features consistent with an osteoma. Complete regression of symptoms was observed after surgery, with no lesions found on routine 1-year follow-up.

CONCLUSIONS

Osteomas are benign, slow growing tumors of the craniofacial bone area, very rarely located in the larynx. Although the etiology is unknown, accepted theories point to embryologic, post-traumatic and infectious causes. Surgical excision is indicated only in symptomatic cases. This case report is the fourth evidence of laryngeal osteoma and, to our knowledge, the first finding of a false vocal fold osteoma.

Cocaine-related peripheral vascular occlusive disease treated with iloprost in addition to anticoagulants and antibiotics

We describe a case of acute ischemia of the 2nd, 3rd and 4th fingers of the right hand secondary to peripheral vascular occlusive disease induced by repeated intra-arterial cocaine injections. The complete occlusion of the distal arteries resolved following treatment with iloprost, a synthetic stable analogue of prostacyclin PGI2, in addition to anticoagulants and antibiotics.

Assessing mechanisms of recovery during robot-aided neurorehabilitation of the upper limb

OBJECTIVE

The present study aimed to qualify and quantify the different components of motor recovery in a group of stroke patients treated by robot-aided techniques. In addition, the learning model of each motor recovery component was analyzed.

METHODS

Two groups of poststroke patients were treated with the use of an elbow-shoulder manipulator, respectively, within (recent) and after (chronic) the first 6 months of their cerebrovascular accident. Both groups were evaluated by means of standard clinical assessment scales and a robot-measured evaluation method.

RESULTS

These findings confirm that motor training consisting of voluntary movements assisted by the robot device led to significant improvements in motor performance in terms of the kinematic and dynamic components of the arm movements. This corresponded to improvement of impairment as confirmed by the clinical scale results.

CONCLUSIONS

Knowledge of the recovery components and of the associated performance acquisition model may be useful in assessing and training stroke patients and should make it possible to precisely plan and, if necessary, modify the rehabilitation strategies.

Acute limb ischemia in elderly patients: can iloprost be useful as an adjuvant to surgery? Results from the ILAILL study

OBJECTIVES

To evaluate the effects of iloprost, in addition to surgery, on the outcome of acute lower limb ischemia (ALLI).

DESIGN

Post-hoc analysis of a randomized, double-blind, placebo-controlled study.

METHODS

In the context of the ILAILL (ILoprost in Acute Ischemia of Lower Limbs) study, 192 elderly patients (>70 years old) undergoing surgery for ALLI were assigned to receive perioperative iloprost (intra-arterial, intra-operative bolus of 3000 ng, plus intravenous infusion of 0.5-2.0 ng/kg/min for six hours/day for 4-7 days following surgery), or placebo (iloprost: n=100; placebo: n=92). Patients were followed-up for three-months following surgical revascularization.

RESULTS

The combined incidence of death and amputation (primary study end-point) was significantly reduced in patients treated with iloprost (16.0% vs 27.2% in the placebo group; hazard ratio 1.99, 95% confidence interval 1.05-3.75, p=0.03). A statistically significant lower mortality (6.0%) was reported in patients receiving iloprost, compared to controls (15.2%) (hazard ratio 2.93, 1.11-7.71, p=0.03). The overall incidence of death and major cardiovascular events was lower in patients receiving iloprost compared to those assigned placebo (24.0% and 35.9%, respectively), at the limits of statistical significance (relative risk 1.64, 0.97-2.79, p=0.06).

CONCLUSIONS

These results confirm the poor outcome in elderly patients with ALLI. Based on a subgroup analysis iloprost, as an adjuvant to surgery, appears to reduce the combined end-point of death and amputation.

Species dependent expression of intestinal smooth muscle mechanosensitive sodium channels

A mechanosensitive Na(+) current carried by Na(v)1.5 is present in human intestinal circular smooth muscle and contributes to regulation of intestinal motor function. Expression of this channel in different species is unknown. Our aim was to determine if Na(+) currents and message for the alpha subunit of the Na(+) channel (SCN5A) are found in circular smooth muscle cells of human, dog, pig, mouse and guinea pig jejunum. Currents were recorded using patch clamp techniques. Message for SCN5A was investigated using laser capture microdissection and reverse transcription polymerase chain reaction (RT-PCR). Na(+) currents were identified consistently in human and dog smooth muscle cells; however, Na(+) current was not found in pig (0/20) or guinea pig smooth muscle cells (0/21) and found only one mouse cell (1/21). SCN5A mRNA was found in circular muscle of human, dog, and mouse, but not in pig or guinea pig, and not in mouse longitudinal or mucosal layers. In summary, SCN5A message is expressed in, and Na(+) current recorded from, circular muscle layer of human and dog but not from pig and guinea pig. These data show that there are species differences in expression of the SCN5A-encoded Na(v)1.5 channel, suggesting species-specific differences in the electrophysiological response to mechanical and depolarizing stimuli.