Assessing reliable and clinically significant change on Health of the Nation Outcome Scales: method for displaying longitudinal data

OBJECTIVE

Many authors recommended that reliable and clinically significant change (RCSC) should be calculated when reporting results of interventions. To test the reliability of the Health of the Nation Outcome Scales (HoNOS) in identifying RCSC, we applied the Jacobson and Truax model to two HoNOS assessments in a large group of people evaluated in 10 community mental health services in Lombardy, Italy, in 2000.

METHOD

The HoNOS was administered to 9817 patients; of these, 4759 (48%) were re-assessed. Reliable change (RC) was calculated using Cronbach's alpha (alpha), as a parameter of the reliability of the measure. Clinical significance cut-offs were calculated using a classification of severity based on HoNOS items.

RESULTS

In the whole sample, the clinical improvement cut-off was 11 and the remission cut-off was 5. Considering the severe patients, the clinical improvement cut-off was 12. The RC index calculated on the whole group and on the subgroup of severe patients indicated that eight-point and seven-point changes, respectively, were needed to be confident that a real change had occurred. Longitudinal changes were depicted on two-dimensional graphs as examples of reporting RCSC on HoNOS total scores in a routine data collection: 91.6% of the whole sample (4361) was stable, 5.6% (269) improved and 1.8% (129) worsened.

CONCLUSION

Our study proposes a methodological framework for computing RCSC normative data on a widely used outcome scale and for identifying different degrees of clinical change.

Burnout among psychiatrists in Milan: a multicenter survey

OBJECTIVES

This study evaluated the prevalence of job burnout and estimated psychiatric morbidity and job satisfaction among psychiatrists in Milan. Also investigated were the contributions of personal and environmental factors to burnout.

METHODS

Data were gathered via a cross-sectional, descriptive, multicenter survey. All psychiatrists working in departments of psychiatry within the Italian Public Health System in Milan were invited to participate, and an overall response rate of 70% (N=81) was achieved. The Maslach Burnout Inventory, the 12-item General Health Questionnaire, a job satisfaction measure, and a study-specific questionnaire were used in the assessments.

RESULTS

Psychiatrists showed high levels of emotional exhaustion and depersonalization. Main sources of stress were related to work environment. According to regression models, the variable that most predicted burnout was a low level of job satisfaction.

CONCLUSIONS

Data suggested that psychiatrists had higher levels of burnout than other physicians employed in general medical settings and confirmed that job satisfaction could have a protective role.

The mental health system in Lombardy, Italy: access to services and patterns of care

PURPOSE

The psychiatric reform in Italy devolved to the regions the responsibility of implementing community psychiatric care. The aim of this paper is to evaluate the mental health system in Lombardy by assessing changes in accessibility and patterns of care occurred between 1999 and 2009.

METHODS

Data on mental health services were collected through the regional mental health information system and analyzed in terms of treated prevalence, treated incidence, continuity of care and packages of care.

RESULTS

Both treated incidence and treated prevalence in Lombardy increased between 1999 and 2009. There was an increasing access to psychiatric services of people with a better social integration. Incidence of schizophrenic and personality disorders decreased and that of affective and neurotic disorders increased dramatically, while increase in prevalence concerned all diagnostic groups. The percentage of patients in continuous care remained stable and was generally low. The majority of cases, even those with schizophrenia, are cared for on outpatient basis. The percentage of patients receiving integrated multiprofessional care declined. Rates of admission to inpatient services remained low and within the inpatient sector a shift from hospital towards residential care emerged, with decreasing hospital utilization and an increase in size of patient population entering community residences. Treatment gap is still a problem in schizophrenic disorders.

CONCLUSIONS

The Lombardy mental health system is strongly based on community care. However, it is reaching a turning point and it needs to be improved in some key areas: the shifting balance towards the care of common mental disorders, in the absence of resource allocations targeted to severely mentally ill, may hinder the system ability to deal with more disabled people. A focus on early intervention and an improvement of continuity of care for people with severe mental disorder, by strengthening community teams, is a priority.

Rationale and design of an independent randomised controlled trial evaluating the effectiveness of aripiprazole or haloperidol in combination with clozapine for treatment-resistant schizophrenia

BACKGROUND

One third to two thirds of people with schizophrenia have persistent psychotic symptoms despite clozapine treatment. Under real-world circumstances, the need to provide effective therapeutic interventions to patients who do not have an optimal response to clozapine has been cited as the most common reason for simultaneously prescribing a second antipsychotic drug in combination treatment strategies. In a clinical area where the pressing need of providing therapeutic answers has progressively increased the occurrence of antipsychotic polypharmacy, despite the lack of robust evidence of its efficacy, we sought to implement a pre-planned protocol where two alternative therapeutic answers are systematically provided and evaluated within the context of a pragmatic, multicentre, independent randomised study.

METHODS/DESIGN

The principal clinical question to be answered by the present project is the relative efficacy and tolerability of combination treatment with clozapine plus aripiprazole compared with combination treatment with clozapine plus haloperidol in patients with an incomplete response to treatment with clozapine over an appropriate period of time. This project is a prospective, multicentre, randomized, parallel-group, superiority trial that follow patients over a period of 12 months. Withdrawal from allocated treatment within 3 months is the primary outcome.

DISCUSSION

The implementation of the protocol presented here shows that it is possible to create a network of community psychiatric services that accept the idea of using their everyday clinical practice to produce randomised knowledge. The employed pragmatic attitude allowed to randomly allocate more than 100 individuals, which means that this study is the largest antipsychotic combination trial conducted so far in Western countries. We expect that the current project, by generating evidence on whether it is clinically useful to combine clozapine with aripiprazole rather than with haloperidol, provides physicians with a solid evidence base to be directly applied in the routine care of patients with schizophrenia.

Measuring clinical change in routine mental health care: differences between first time and longer term service users

OBJECTIVE

The aims were to assess the feasibility of routinely collecting outcome data in everyday mental health services across Italy and to evaluate clinical change in a cohort of patients stratified by illness duration.

METHOD

A prevalence sample of patients attending nine Italian community mental health services (CMHS) was assessed over one year with the Health of the Nation Outcome Scales (HoNOS). The patients were classified on the basis of the duration of their contact with services. Clinical outcome was evaluated taking into account parameters of reliable and clinically significant change (RCSC). Predictors of change included clinical and socio-demographic characteristics at first assessment and six month reliable improvement.

RESULTS

2059 patients were evaluated with only 3% attrition at follow up; 22% of first time and about 7% of longer term users achieved reliable improvement at one year. First contacts had a better outcome than longer term users and significant differences were seen at both group and individual level. Reliable improvement at six months was the best predictor of clinical improvement at one year for the whole cohort.

CONCLUSION

The study demonstrated the feasibility of routine outcome assessment and gave an expected and realistic picture of the one-year outcome of a representative sample of patients attending a group of Italian CMHS. RCSC showed potential utility as a means of communicating with clinicians and decision makers.

Does community care work? A model to evaluate the effectiveness of mental health services

The aim of this paper is to evaluate the effectiveness of community Mental Health Departments in Lombardy (Italy), and analyse the eventual differences in outcome produced by different packages of care. The survey was conducted in 2000 on 4,712 patients treated in ten Mental Health Departments. Patients were assessed at least twice in a year with HoNOS (Health of the Nation Outcome Scales). Data on treatment packages were drawn from the regional mental health information system, which includes all outpatient and day-care contacts, as well as general hospital and inpatient admissions provided by Mental Health Departments. Multilevel growth models were used for outcomes statistical analysis, expressed in terms of change of the total HoNOS score. On the whole, Mental Health Departments were effective in reducing HoNOS scores. The main predictor of improvement was treatment, while length of care, gender and diagnosis were weaker predictors. After severity adjustment, some packages of care proved more effective than others. Appropriate statistical methods, comprehensive treatment descriptions and routine outcome assessment tools are needed to evaluate the effectiveness of community mental health services in clinical settings.

Estimating the prevalence of severe mental illness in mental health services in Lombardy (Italy)

Although many countries' policies give Severe Mental Illness (SMI) priority inside Mental Health Services, researches assessing the prevalence of SMI in Mental Health Services according to operational criteria are still few. The aim of this is paper is to define annual SMI treated prevalence, describing socio-demographic and clinical characteristics, patterns of care and treatment costs of SMI and non-SMI patients. SMI prevalence in 10 Departments of Mental Health of the Lombardy Region (Italy) was assessed in 2000 by applying criteria concerning both severity, measured through HoNOS (Health of the Nation Outcome Scales), and utilisation patterns in the previous year. Annual SMI prevalence was equal to 3.1 cases per 1,000 inhabitants aged over 14; SMI patients' costs were 5.5 times higher than those of non-SMI patients ($5,183 versus $939 per year) and patterns of care were different. The variables predicting the SMI status were diagnosis, presence of paid employment, duration of service contact, care packages delivered in 2000 and severity of some HoNOS items (self harm, drug abuse, cognitive problems, delusions, other symptoms, relationships, activities of daily living and housing). The use of the combined criteria of severity and intensity of contact with mental health services in the previous year seems to be able to define severely ill patients adequately.

[Cost of psychiatric patients by disability type]

OBJECTIVE

The study of the relation between treatment costs and disability of psychiatric patient groups.

DESIGN

Perspective assessment of costs and disability of 1371 adult psychiatric patients in charge at two Operative Psychiatric Units (OPU), followed during an average period of 9 months. Data are related to all OPU's psychiatric services, including ambulatory, full or half-residential and psychiatric departments of acute hospital services.

SETTING

OPUs of Magenta (MI) and Desio (MI).

METHOD

The disability level has been measured by Health of the Nation Outcome Scales (HoNOS) filled in at the inclusion of the patient in the study and every three-months on average thereafter. Besides other HoNOSs have been filled in both at admission and discharge from psychiatric departments of acute hospitals, Residential Centres of psychiatric Therapies and Rehabilitation and Guarded Communities. All patients have been grouped using the main psychiatric diagnosis (first digit ICD-10) and the maximum disability level shown in the whole period of the study. Direct costs of publicly financed psychiatric services have only been considered. Their attribution to each patient has been made applying standard costs or tariffs (diagnostic procedures) to the data perspectively collected by the regional Register and a purposely designed protocol.

RESULTS

Total cost of 1371 patients has been 9771.1 million lire with a cost per patient of 7,127,000 lire (sd 19,499,000) and a cost per "day in charge" of 27,172 lire (sd 68,358). The cost per day has been found unrelated with the length of observed time frame. At the inclusion the mean level of disability has been 4.26 points (sd 3.73) and 3.19 points (sd 3.26) at the end of the study. Its value, measured at maximum level shown by each problem in the whole period of study, has been 6.00 points (sd 4.64). Disability and treatment cost of each patient did result directly related (r = 0.626, p = 0.0001). All patients have been grouped in 12 classes with a significant (p = 0.0001) overall difference on both their disability level and treatment cost.

CONCLUSIONS

All adult psychiatric patients could be grouped in disability related classes which sometimes have also a different treatment cost. A study on a greater number of patients is needed to confirm these results. It may also provide a more reliable basis for a new financing system of psychiatric services.

Burnout among psychiatrists in Milan: a multicenter survey

OBJECTIVES

This study evaluated the prevalence of job burnout and estimated psychiatric morbidity and job satisfaction among psychiatrists in Milan. Also investigated were the contributions of personal and environmental factors to burnout.

METHODS

Data were gathered via a cross-sectional, descriptive, multicenter survey. All psychiatrists working in departments of psychiatry within the Italian Public Health System in Milan were invited to participate, and an overall response rate of 70% (N=81) was achieved. The Maslach Burnout Inventory, the 12-item General Health Questionnaire, a job satisfaction measure, and a study-specific questionnaire were used in the assessments.

RESULTS

Psychiatrists showed high levels of emotional exhaustion and depersonalization. Main sources of stress were related to work environment. According to regression models, the variable that most predicted burnout was a low level of job satisfaction.

CONCLUSIONS

Data suggested that psychiatrists had higher levels of burnout than other physicians employed in general medical settings and confirmed that job satisfaction could have a protective role.

[The use of psychotropic drugs in an Italian psychiatric hospital: a two-year-long follow-up study]

OBJECTIVE

Following the introduction of guidelines of rational drug use, the pharmacoepidemiology of psychotropic drugs was investigated in a sample of long-stay patients living in a Italian psychiatric hospital.

DESIGN

A prospective, longitudinal two-year follow-up study was carried out. Information about sociodemographic and clinical characteristics of the inpatient population, and about medications prescribed, was collected at baseline and after one and two years of follow-up.

SETTING

Three wards of the psychiatric hospital of Milan.

MAIN OUTCOME MEASURES

Number of patients taking psychotropic drugs, number of patients taking more than one neuroleptic or benzodiazepine, mean neuroleptic dose, psychopathological status according to the Brief Psychiatric Rating Scale (BPRS).

RESULTS

70 patients were recruited and followed for two years. At follow-up a reduction in the number of patients taking neuroleptic drugs was recorded, together with a 50% decrease in the number of patients taking more than one neuroleptic. A reduction in the use of depot formulations was in addition shown. Patients taking benzodiazepines decreased of 50%. According to the BPRS, no psychopatological changes were observed during the study.

CONCLUSIONS

These data suggest that education in psychopharmacology may guide towards a more rational use of drugs; longitudinal clinical audits should be implemented to monitor everyday practice.

[The value of nuclear magnetic resonance tomography in evaluating the patency of aortocoronary bypass grafts]

BACKGROUND

Patients with previous coronary artery bypass graft surgery often present with pain of unknown origin. Noninvasive documentation of graft patency is of obvious clinical importance.

METHODS

In order to assess the efficacy of magnetic resonance imaging (MRI) in evaluating graft patency, 44 patient with prior coronary artery bypass graft surgery and a history of chest pain were studied by coronarography and MRI. MRI was performed within 2.1 +/- 3.8 days from coronarography using a 0.5 Tesla magnet, Spin-Echo T1 technique, cardiac and respiratory gating and scannings in transaxial plans. A graft was defined as patent, if a signal void was identified in at least two different slices in a position consistent with a bypass graft. Images were analyzed by two different observers aware of the type of surgery but not the result of the coronarography.

RESULTS

Eighty-nine out of 100 grafts were classified correctly by MRI. Sixty-three grafts were patent as shown by coronarography; 59 of them were classified correctly by MRI. Thirty-seven grafts were shown as occluded; 30 of them were classified correctly by MRI. In particular, 43 out of 45 grafts to the left anterior descending artery, 18 of them using the internal mammary artery, 23 out of 30 graft to the left circumflex artery and 23 out 25 grafts to the right coronary artery were classified correctly.

CONCLUSIONS

This study demonstrates the capability of MRI to evaluate coronary artery bypass graft patency with a sensitivity of 94% and specificity of 81%; this technique has significantly clinical limitations because resolution is not adequate to evaluate the presence of graft stenosis.

[Role of echo-doppler in programming of sequential pacemakers. Evaluation of optimal atrioventricular delay in patients with normal or hypertrophic left ventricle]

2D-echocardiography, together with simultaneous measurement of systolic blood pressure and pulsed doppler examination of the transmitral flow were used to assess the left ventricular (LV) systolic and diastolic function during sequential pacing at 4 different atrioventricular (AV) intervals (50, 100, 150, 200 msec), and VVI pacing under the same rate of 90 beats/min in 13 patients (pts), mean age 61.25 +/- 8.26 years with DDD pacemakers implanted for complete AV block. The pts were divided into 2 groups: group I was comprised of 7 subjects showing no clinical abnormalities and normal echocardiograms, and group II of 6 hypertensive subjects with LV hypertrophy and normal systolic function on echocardiography. There was no change in LV diastolic dimension, but a depression in LV systolic function and contractility were shown by the conversion from DDD to VVI pacing in all pts, particularly in group II VVI pacing caused mitral regurgitation with LV filling pattern changing from beat to beat. By changing the AV interval during DDD pacing, the LV filling pattern was modified in all pts. Systolic performance showed little change in group I, whereas in group II more evident modifications were seen. An optimal AV delay, defined as the delay with maximal stroke volume, was identified in all subjects as being 100 and 150 ms in group I and group II respectively. Echo-doppler can thus provide useful information in choosing the mode of pacing and in programming optimal AV delay. In contrast to normal ventricles the systolic performance in hypertrophic ventricles is highly influenced by variation in the AV delay.(ABSTRACT TRUNCATED AT 250 WORDS)

[Value of the isovolumetric index in the diagnosis of ischemic cardiopathy with normal left ventricular volume and ejection fraction]

Purpose of this study was to assess if the isovolumic index (IVI%) was able to detect the presence of critical coronary artery disease (CAD) in a group of 43 patients with anginal chest pain and normal left ventricular volumes and ejection fraction. The left ventricular function was before evaluated with invasive method and then the IVI% was allowed in every patient. The IVI% was able to recognize early abnormalities of isovolumetric phases of the left ventricle and differentiated normal subjects (IVI% = 40.07 +/- 2.82) from patients with CAD (IVI% = 60.87 +/- 12.49; p less than 0.01). The only parameter of left ventricular function invasively calculated able to separate normal patients from patients with significant CAD were the muscular stiffness of the left ventricle (p less than 0.01).

[Planar myocardial scintigraphy with technetium-99m-sestamibi in acute myocardial infarct treated with thrombolytic therapy]

BACKGROUND

Nuclear cardiology permits the estimation of the myocardial infarction size and the result of the thrombolytic therapy. The aim of the study was to demonstrate the feasibility of the planar myocardial scintigraphy with Technetium-99-m-sestamibi in the coronary intensive care unit for the early identification of the infarct size and the result of the thrombolytic therapy.

MATERIALS AND METHODS

We considered 10 patients affected by a first myocardial infarction (5 anterior and 5 inferior wall) then treated with thrombolytic therapy (APSAC 30 U. iv) within an interval of 3 hours from the onset of the symptoms. Technetium-99-m-sestamibi was injected before the thrombolytic therapy and the planar imaging was registered after 2-3 hours with a mobile gamma-camera. After 24 hours and before patient discharge we repeated the scintigraphic evaluation. Within 24 hours from the thrombolytic therapy the coronary angiography was performed for the demonstration of patency of the infarct-related artery. The left ventricle myocardial perfusion was divided in the 3 planar projections into 13 segments. The perfusion in each segment was evaluated with a perfusion score: 0 = normal perfusion, 1 = moderately reduced, 2 = severely reduced, 3 = absent. The sum of the hypoperfused segments represented the infarct size. A perfusion score improvement greater than 40% was considered a marker of reperfusion.

RESULTS

The infarct size involved 4.4 +/- 1.4 segments in the anterior and 2 +/- 0.6 segments in the inferior wall infarctions (p < 0.05). The scintigraphic imaging made 24 hours after the myocardial infarction allowed the diagnosis of coronary reperfusion in 7 patients. The coronary angiography demonstrated the infarct related artery patency in 9 patients (all with TIMI perfusion score = 3). The nuclear imaging at patient discharge provided the diagnosis or reperfusion in 8 cases and demonstrated an improvement of the myocardial perfusion score in 5 cases.

CONCLUSION

The scintigraphic imaging with Technetium-99-m-sestamibi in the patients with a myocardial infarction treated with thrombolytic therapy is feasible with a mobile gamma-camera in the intensive coronary care unit. The quality of planar imaging is good and allows the evaluation of myocardial infarct size and efficiency of thrombolytic therapy. An earlier scintigraphic imaging should be taken into consideration for a more timely non-invasive evaluation of patients who need coronary angiography and, if necessary, a rescue PTCA.

[Transesophageal echocardiographic diagnosis of coronary fistula in an adult patient]

There are only a few reports about the utility of transesophageal echocardiography (TEE) in diagnosing coronary artery fistulas. We report a case of an adult patient with an unsuspected fistula between the right coronary artery and the right atrium, which was identified and correctly described by TEE. This diagnosis was subsequently confirmed by selective coronary angiography and surgical findings.

[Exercise 201-thallium myocardial scintigraphy in left bundle branch block]

BACKGROUND

Reduced septal uptake of 201-Thallium in patients with left bundle branch block is reported in literature as having a variable frequency (between 14% and 100%) and in such patients the value of exercise Thallium-scintigraphy for the diagnosis of the left anterior descending coronary artery disease is limited by the great number of false-positive tests. The aim of this study was to assess the prevalence and the diagnostic sensitivity of this septal defect in a group of patients with left bundle branch block.

METHODS

We evaluated the exercise 201-Thallium myocardial scintigraphy of 54 patients with a stable left bundle branch block. The clinical and/or echocardiographic evaluation excluded the presence of primitive, valvular and hypertensive cardiomyopathies and of previous myocardial infarction. The planar myocardial scintigraphic imaging was acquired according to the "stress-redistribution" protocol. Only 37 patients underwent an echocardiographic examination and following clinical and/or scintigraphic indications; 27 patients underwent a coronary angiography for the evaluation of coronary stenosis.

RESULTS

The 201-Thallium imaging showed septal defects in 36 patients (67%) and the presence of defects in other segments in 14 patients. The echocardiographic evaluation showed an interventricular septal defect contraction abnormality in 19 cases in the 27 patients with septal defect and in 4 cases in the 10 patients with negative scintigraphy (Fisher NS). Twenty-seven patients (23 with- and 4 without septal defect) underwent a coronary angiography, which showed in 6 cases critical stenosis of the left descending anterior artery, in 5 of the right coronary, in 3 of the Circumflex artery and in 16 normal coronary angiograms. The presence of the septal uptake defect showed a diagnostic sensitivity and specificity for the detection of the left anterior descending coronary artery disease of respectively 67% and 52% (whereas using a semi-quantitative analysis of 100% and 19%). The scintigraphy showed a sensitivity and specificity for the detection of the right coronary artery disease of respectively 80% and 100% and for the circumflex coronary artery stenosis of 0% and 100%.

CONCLUSIONS

We found a high prevalence of septal perfusion defects (67%) and this results shows a high sensitivity but a low specificity for the diagnosis of the left anterior descending coronary disease; the semi-quantitative analysis improves the sensitivity, but leads to a further reduction of the specificity. The female patients had a prevalence (70%) similar to the general population but demonstrated a higher percentage of false-positive. The 201-Thallium scintigraphy has a high diagnostic accuracy for the detection of the right coronary artery stenosis, while it is less accurate regarding the circumflex artery disease.

[Transesophageal echocardiography in the diagnosis of cor triatriatum in the adult]

Cor triatriatum (CT) is a rare congenital defect, surgically correctable, and sometimes difficult to diagnose by cardiac catheterization. This report describes three young patients with this particular defect, one of whom was sent to us because of signs of right ventricular failure. The diagnosis of CT was made by transesophageal echocardiography and confirmed by cardiac catheterization and surgical data. The other two cases underwent cardiac catheterization and cardiac surgery during infancy for other congenital defects. The diagnosis of CT was made only during post-operative controls by transthoracic echocardiography. In these two cases transesophageal echocardiography provided the most valuable information about the morphological features of the membrane and the mitral valve, and about the flow between the two left atrial chambers.

[The isovolumetric index: a new index of left ventricular function]

The isovolumic index (IVI%), a new parameter of left ventricular function defined as (isovolumic contraction + isovolumic relaxation time)/left ventricular ejection time, is easily obtained from a routine echocardiogram. By simultaneous recordings of an electrocardiogram, a carotid arterial pulse tracing and the mitral valve echocardiogram, we calculated the IVI% as (time from R wave to MV opening-LVET)/LVET %. 90 normal subjects, mean age 38.32 +/- 11.8 years (range 20-60), underwent an echocardiographic study in order to calculate this index. The value of the IV% was 39.75% +/- 6.82 (range 21.4%-52.3%). The index was heart rate independent and showed a weak positive correlation with age (y = 32.4 + 0.19x; r = 0.33; p less than 0.01). The intraobserver and interobserver variability were 2.6% and 3.6%. The methodologic aspects of the calculation of the IVI% are discussed.

[Long-term follow-up in patients operated on for aortic coarctation. The echo-Doppler and MRI assessment of left ventricular function and the transisthmic gradient]

BACKGROUND

Hyperdynamic left ventricular function and increased left ventricular mass has been recently reported in the long-term follow-up of patients after successful repair of aortic coarctation (AoCo).

METHODS

We studied 35 patients, mean age 22.7 years (range 1-47), following repair of AoCo in order to evaluate: 1) left ventricular mass and systolic function by M-mode echocardiography in comparison with 20 healthy control subjects; 2) the prevalence of systemic hypertension; 3) systolic blood pressure and the trans-isthmic gradient by CW Doppler at rest and after exercise; 4) subjects with a hypertensive response and/or with a significant trans-isthmic gradient during exercise, correlating such parameters with indexes of left ventricular function and the ratio of aortic isthmus/aortic diaphragmatic diameters (AOI/AOD) by means of Magnetic Resonance (MR). At the time of operation, mean age was 12.4 years (range 1 mo-40 yrs) and the follow-up period was 10.1 years (range 6 mo-26 yrs).

RESULTS

Left ventricular mass index (Mi) was significantly greater in comparison with that of the controls (96.5 +/- 25 vs 71.5 +/- 16.6 g/m2; p < 0.001); the mean velocity of circumferential shortening (mVCFc) was increased (1.4 +/- 0.25 vs 1.2 +/- 0.16 circ/s; p < 0.005); the end systolic meridional stress (ESS) was decreased (37.3 +/- 11.1 vs 47.9 +/- 13.1 g/cm2; p < 0.005) while the peak systolic meridional stress (PSS) was not significantly different in the two groups. Fourteen out of 35 patients (40%) showed an exaggerated mVCFc for the level of ESS, which indicates an increased inotropic state. Hypertension at rest was present in 10 patients (28%). Mean age at the time of operation of the hypertensive group was higher than that of the normotensive one (21.4 +/- 10 vs 8.9 +/- 8.6 yrs; p < 0.001). All patients showed a small systolic gradient across the side of coarctation repair at rest (mean 13.1 mmHg; range 0-30). The exercise test was stopped in 5 patients because of hypertension (> 250 mmHg); 24 patients (80%) showed an exercise-induced hypertension. The mean gradient at maximal exercise was 25.9 mmHg (range 0-52); 6 patients (20%) developed a diastolic gradient. With MR it was possible to evaluate the anatomy of the aortic arch and the descending aorta in all cases. The mean ratio AOI/AOD was 0.81 (range 0.63-1). The age at the time of operation showed a positive correlation with the systolic blood pressure (r = 0.63; p < 0.001) and with Mi (r = 0.45; p < 0.005). The systolic blood pressure and the gradient at maximal exercise also showed a positive correlation (r = 0.40; p < 0.01).

CONCLUSIONS

In the long-term follow-up of patients after successful coarctation repair there are persistent alterations of left ventricular function with hypertrophy, hyperkinesia and increased inotropic state. Hypertension at rest and after exercise could persist despite good surgical results.

[Left ventricular remodelling at 3 months from a first transmural infarct: the effect of physical activity and of the patency of the necrotic artery on changes in volume and segmental kinetics]

OBJECTIVE

Aim of this perspective study was to assess in patients (pts) with a recent first transmural myocardial infarction (MI) the influence of a physical training, of MI location and of the patency of the infarct-related coronary artery on the modification of the left ventricle volumes and wall motion score.

METHODS

One hundred and four consecutive pts with a first transmural MI without clinical contraindication (heart failure, moderate or severe mitral regurgitation, severe postinfarction angina, claudication or severe orthopedic problems) were randomly assigned to a rehabilitation group (A) and to a control group (B). Ten days after acute MI all pts underwent a coronary angiography. A complete echocardiographic examination was performed 10 and 90 days after MI, and an ergometric evaluation 20 and 90 days after MI. Ventricle volumes, ejection fraction (EF) and wall motion score were calculated by a two-dimensional echocardiogram. Thirteen pts (12.5%) were excluded from the study because of the bad quality of the echocardiographic images. There were 8 dropouts (7.8%) due to bypass surgery or to coronary angioplasty. Of the 83 pts who have concluded the study 46 (55%) belonged to the Group A and 37 (45%) to the Group B. Thirty-six had anterior MI (20 Group A), 41 inferior MI (22 Group A) and 6 lateral or posterolateral MI (4 Group A).

RESULTS

At the base-line the ventricular volumes, the EF, the wall motion score and the Total Work Capacity (TWC) were not different in the two groups. Three months after the MI the pts of the Group A demonstrated, in comparison with the controls, a reduction of left ventricle end-diastolic volume index (EDVi 75.4 +/- 18.1 ml/m2 vs 85.3 +/- 27.9 ml/m2; p < 0.05) and an increased TWC (7146 +/- 3566 Kgm vs 4494 +/- 2728 Kgm; p < 0.001). In the Group A the comparison of the base-line data with those observed 3 months later showed a reduction of the EDVi from 81.9 +/- 16 to 75.4 +/- 18.1 p < 0.05, of the end-systolic volume index (ESVi) from 43.6 +/- 11.9 to 38.1 +/- 14 ml/m2, p < 0.05, of the wall motion score from 6.7 +/- 2.3 to 5.5 +/- 2.9 p < 0.05 and a great increase of the TWC (from 4483 +/- 2407 Kgm to 7146 +/- 3566 Kgm; p < 0.0001). No parameter in the Group B showed any significant modification in the same period. The tendency to reduce the volume and improve the physical performance with exercise training was greater in the inferior MI (ESVi from 41.3 +/- 12.3 to 34.7 +/- 11.6 ml/m2, p = 0.07 - TWC from 4652 +/- 2446 to 8115 +/- 3954 Kgm, p < 0.001) than in the anterior MI (ESVi from 445.8 +/- 10.7 to 42.1 +/- 17.2 ml/m2, p = ns - TWC from 4085 +/- 2103 to 5829 +/- 2256 Kgm, p < 0.05). When comparing pts with an occluded infarct-related coronary artery with TIMI grade 0-2 flow with those with a patent one (TIMI grade 3 flow), no significant differences in any considered parameter except for the collateral vessels score were found (1.48 +/- 0.97 vs 0.29 +/- 1.64 p < 0.05). After 3 months 20 pts presented larger EDVi compared to the baseline, and compared to the 34 pts with a smaller EDVi, they had a higher serum myocardial enzymatic peak (LDH 2035 +/- 1423 vs 1346 +/- 683 p < 0.01, CK 3096 +/- 2339 vs 2099 +/- 1520, p < 0.05) an inferior collateral score (0.47 +/- 0.77 vs 0.67 +/- 1.98, p < 0.01) and they mainly belonged to the Group B (55%). Twenty pts had an initial EF < or = 40% (range 22-40%): 5 of the 6 pts of this group, who increased the EDVi after 3 months belonged to the Group B while 9 of the 10 pts who reduced it belonged to the Group A.

CONCLUSIONS

Intensive physical training during the 3 months following a first transmural MI significantly improves the physical performance, reduces the ventricle size and improves the wall motion score. Such improvement could not be found in the control group and is not related to the patency of the culprit coronary artery. The pts with an inferior MI tended to gain a major advantage from the physical activity than the pts with an anterior