Hospital discharge for stroke patients: Transitional Care is Brain

Background

Among cerebrovascular disease, stroke is a life-threatening neurological event and a main cause of serious long-term disability, with relevant healthcare and economic burden. Treatment of stroke is time dependent and organised integrated stroke care enables quick and effective responses to reduce stroke-related death and disability. This study aimed at evaluating the amount of hospital discharge to transitional care facilities for stroke patients to support integrated care models in the city of Pavia (Italy).

Methods

In 2017 in Pavia, Fondazione IRCCS Policlinico San Matteo started a partnership with Fondazione Mondino to build a specific stroke pathway, becoming a leading centre for stroke treatment. We conducted a retrospective chart review (RCR) of patient-centred data to quantify the volume of discharge for stroke patients. Two trained public health residents reviewed medical records with stroke admission diagnosis during 2021, analysing onset (e.g., Emergency Room, other hospital, emergency network), ward, treatment and discharge types (e.g., home, death, transitional care facility).

Results

Our RCR found 669 patients with a stroke diagnosis treated at San Matteo hospital in 2021, the vast majority of which were admitted to the neurology ward (375 patients, 56%). The recanalization rate was 32% (150 on 464 ischemic stroke patients). Regarding the discharge type, 299 patients (45%) were sent home, while 297 patients (44%) needed transfer to rehabilitation or long-term care facilities. About 8% (52 patients) of the overall sample died in hospital.

Conclusions

Our analysis showed that, while most stroke patients were discharged and sent home, more than two-third need to be transferred to continue to get the right healthcare from the right professional. Transitional care facilities should receive the greatest consideration by systems and providers seeking to implement care models to reduce residual neurological disabilities for stroke patients.

Key messages

• A fast and accessible emergency chain is essential to reduce residual neurological disabilities and the related healthcare and economic burden in stroke patients.

• Extending the stroke path model to other time-dependent diseases is increasingly high-priority to shape a strong and resilient healthcare system, ensuring qualified health coverage.

P270 TELL ME HOW LONG WILL YOU STAY … TELL ME HOW LONG HOW LONG … ANALYSIS OF THE DURATION OF HOSPITAL STAY (HOSPITAL LENGTH OF STAY) OF ELDERLY PATIENTS WITH EMBOLISM: EXPERIENCE OF 4 YEARS IN FIRST AID

Premise

Pulmonary embolism is a disease still characterized by high mortality. It requires emergency department resources to be diagnosed promptly and can require lengthy hospital care.

Purpose

to assess which parameters, in the real life of an Emergency Department, correlate with the duration of a hospitalization for pulmonary embolism (hospital LOS).

Methods

Single–center retrospective observational study, on all geriatric patients (> 75) who entered our ED, where they were diagnosed with acute PE. Enrollment began in 2016 and ended in 2019. We collected data from medical history, physical examination, laboratory tests, imaging; we calculated the characteristic scores from the diagnostic / therapeutic algorithm, both for the risk of PE (Wells, Geneva and Years), and for the presentation of the risk of mortality at 30 days (sPESI). We analyzed all the blood chemistry and blood gas analyzes performed upon access to the emergency room. We then had all chest CTs retested by an experienced radiologist. We also analyzed vital parameters and the various shock indexes from these derivatives. We then analyzed whether patients had massive pulmonary embolism or the presence of organ damage (right ventricular dilation, pulmonary artery dilation and presence of pulmonary infarction).

Results

We enrolled 247 patients, all in need of hospitalization for acute pulmonary embolism. The average age is 83 with female precalence (F = 63%). Regarding the length of hospital stay, the presence of massive embolism shows a good statistical correlation (p < 0.01), while the presence of organ damage seems irrelevant (p > 0.05). The need for resuscitation care and the high sPESI index also show no correlation (p > 0.05). Age and vital signs (blood pressure, respiratory rate, heart rate) as well as derived shock indices are unrelated (rho∼0; p > 0.05). A weak correlation is instead present with high D–Dimer values (rho∼0.20; p < 0.005) while the other blood samples do not show correlation (rho∼0; p > 0.05). No correlation for the blood gas analysis parameters taken into consideration (pH; pO2; pCO2; lactates).

Conclusions

The study suggests that the presence of massive pulmonary embolism and to a lesser extent high D–Dimer values correlates with a long hospital stay.

P263 ROLE OF VITAL SIGNS AND INDICES OF SHOCK DERIVED FROM THEM IN THE SUSPICION OF MASSIVE PULMONARY EMBOLISM IN ELDERLY: THE ER AS A WINDOW ON REAL LIFE

Purpose

Assess which vital parameters or shock parameters, in the real life of an Emergency Department, correlate with the presence of massive pulmonary embolism to see which ones can be of help to early suspect it.

Methods

Single–center retrospective observational study, on all geriatric patients (> 75 y) who entered our ED, where they were diagnosed with acute PE. Enrollment began in 2016 and ended in 2019. We collected data from medical history, physical examination, laboratory tests, imaging; we calculated the characteristic scores from the diagnostic / therapeutic algorithm, both for the risk of PE (Wells, Geneva and Anni), and for the presentation of the risk of mortality at 30 days (sPESI). We then had all chest CTs retested by an experienced radiologist. We assess the correlation of vital parameters and shock indexes with the presence of massive pulmonary embolism. We took into consideration: the shock index (SI), the modified shock index (MSI) and the age–shock index (AGE_SI).

Results

We enrolled 247 patients, with a mean age of 83 years and prevalence of female (F = 63%). Of these, 85 (34.4 %) presented with massive pulmonary embolism. There is no correlation between blood pressure, systolic and diastolic values, respiratory rate with the presence of massive pulmonary embolism (p > 0.05). However, there is a strong statistical correlation between heart rate values and the presence of massive pulmonary embolism (p < 0.0001). The shock index correlates with the presence of massive pulmonary embolism with good statistical strength (p < 0.001); the modified shock index correlates with the with even greater statistical strength (P = 0.0005). The age–shock index correlates with the presence of pulmonary embolism with excellent statistical strength (p < 0.0001).

Conclusions

The study suggests that the alteration of shock indices, in particular of the AGE–shock index, correlate with the condition of massive pulmonary embolism. Taking into consideration these parameters, of very low cost, available from triage and obtainable in a few minutes at the medical examination, easily performed in the various Italian situations, can help to raise the suspicion of massive pulmonary embolism early and direct the patient more quickly towards the correct procedure therapeutic diagnostic.

P275 HOLDING AREA IN EMERGENCY DEPARTMENT : A STRATEGY TO IMPROVE ADHERENCE TO INTERNATIONAL GUIDELINES IN CASES OF PULMONARY EMBOLISM IN ELDERLY

Premises

Pulmonary embolism is a disease still characterized by high mortality. Despite a great development of the guidelines it is not clear what adherence to them is in real life, especially in the emergency room.

Purpose of the Study

See if and how, in the real life of an Emergency Department, adherence to the Guidelines varies according to the area to which the patient is addressed.

Methods

Monocentric retrospective observational study, on a group of geriatric patients (<75 y) that include all the people accessed to our ED, where they received acute PE dignosis. Enrolment started on 2016 and finished on 2019. We collected data from medical history, physical examination, lab tests, imaging; we calculated characteristic scores from the diagostic/therapeutic algorhitm, both regarding PE risk (Wells, Geneva and Years), and the 30–day mortality risk presentazione (sPESI). We then analized guidelines adherence in three decision–making turning–points: 1 Correct applicarion of decisional scores examined, which classify the patient in low, intermediate or high risk of PE, calculated with Wells and simplified Geneva score; 2 Correct therapy administration since the ED as suggested by the guidelines; 3 The eventual observation in the medium–intensity care area with close monitoring for the subpopulation of patients with finding of right ventricular dilation or myocardial enzymes impairement (considered at high risk of short–term shock and mortality).

Results

we enrolled 249 patients, with a mean age of 83 years and female prevalence (F = 62%). Of these, 69% were referred by Triage to medium–high intensity of care, the remaining 31% was directed to low intensity of care. 42.5% of the total patients were referred to OBI. The two areas of intensity of care showed similar adherence to guidelines (approximately 50%) without there being a statistically significant difference between the two areas (p > 0.05) Adherence to guidelines was higher in the holding area – OBI (75 %) compared to that of those managed in theaters (50%) in a statistically significant way (p < 0.001).

Conclusions

The study suggests that holding areas located in Emergency Departments can considerably increase adherence to international guidelines.

P271 DOES SENILITY AFFECT THE MANIFESTATION AND MANAGEMENT OF PULMONARY EMBOLISM? EXPERIENCE OF AN ED

Premises

Acute pulmonary embolism is a pathology characterized by high mortality. The elderly population is destined to increase, becoming, according to some authors, 30% of the population in the developed countries.

Purpose of the Study

see if and how, in the real life of an Emergency Department, age can affect the manifestation (more severe or milder forms of pulmonary embolism; typical symptoms and atypical symptoms), patient management and adherence to guidelines. We considered subjects over 75 years of age to be elderly, as per the latest indications of the guidelines.

Methods

Single–center retrospective observational study on all patients who entered our ED, where they received a diagnosis of acute PE. Enrollment began in 2016 and ended in 2019. We collected data from medical history, physical examination, laboratory tests, imaging; we calculated the characteristic scores from the diagostic / therapeutic algorithm, both for the risk of PE (Wells, Geneva and YEARS), and for the presentation of the risk of mortality at 30 days (sPESI). We analyzed the hospitalization rate, in–hospital mortality rate, the hospitalization rate in resuscitation and the length of hospitalization. We then analyzed adherence to the guidelines valid in the period under study.

Results

We enrolled 487 patients, with equal gender distribution (F = 52%). 247 were older than 75 (50.7%). Age has a positive correlation with the presence of massive pulmonary embolism, in a statistically significant way (p < 0.05), and with the presence of organ damage, touching on statistical significance (p = 0.05). On the other hand there is no statistically significant difference in the prevalence of typical or atypical symptoms in the two groups. The vital parameters were instead comparable in the two groups with no statistically significant difference (p > 0.05). Long–term outcomes such as mortality, need for hospitalization, ICU stay and length of stay in hospital are also comparable results without statistically significant difference (p > 0.05). Adherence to international guidelines is also comparable between the two groups (p > 0.05).

Conclusions

The study suggests that age correlates with more severe forms of pulmonary embolism but does not affect either patient management or short–term outcomes.

P276 BLOOD GAS ANALYSIS AND D–DIMER IN CASES OF ORGAN DAMAGE FROM PULMONARY EMBOLISM IN ELDERLY: POOR CORRELATION IN REAL LIFE IN THE EMERGENCY ROOM

Premise

Pulmonary embolism is a pathology still characterized by high mortality and severe sequelae, greater in cases of organ damage. Raising suspicion and early recognition of this condition is therefore important to avoid delays in undertaking the right diagnostic and therapeutic process.

Purpose

Evaluate which vital parameters and shock parameters derived from them, in the real life of an Emergency Department, correlate with the presence of organ damage from pulmonary embolism to see which ones may be of help in raising the suspicion of this condition early.

Methods

Single–center retrospective observational study, on all geriatric patients (>75) who were diagnosed with acute PE. Enrollment began in 2016 and ended in 2019. We collected data from medical history, physical examination, laboratory tests, imaging; we calculated the characteristic scores from the diagnostic / therapeutic algorithm, both for the risk of PE (Wells, Geneva and Years), and for the presentation of the risk of mortality at 30 days (sPESI). We analyzed all the blood gas analyzes performed upon access to the emergency room. We then had all chest CTs retested by an experienced radiologist. We went to see the correlation of vital parameters and shock indexes from these derivatives with the presence of organ damage from pulmonary embolism. We considered right ventricular dilation, pulmonary artery dilation and the presence of pulmonary infarction organ damage.

Results

We enrolled 247 patients, with a mean age of 83 years and female prevalence (F = 63%). Of these, 79 (32%) have organ damage from pulmonary embolism. The lactate values do not correlate with the presence of organ damage (p > 0.05). The pCO2 values correlate inversely with the presence of organ damage reaching statistical significance (P < 0.05). Instead, the reduction in pO2 values and the increase in pH values do not have any correlation with the presence of organ damage (p > 0.05). The D–Dimer in turn shows a fair association with the values of organ damage from pulmonary embolism (p < 0.01).

Conclusions

The study suggests a reduced significance of blood gas analysis in the early identification of patients with organ damage in the event of pulmonary embolism. A fair correlation is given only by the reduction in pCO2 values and by the increase in D–Dimer values.

P332 ACUTE HEART FAILURE IN AN ELDERLY, DIABETIC, HYPERTENSIVE PATIENT. A NEVER BANAL CASE UNDERLINES THE ROLE OF EMERGENCY ECHOCARDIOGRAPHY AND AND THE RELIABILITY OF THE ANAMNESIS COLLECTED IN URGENCY

We describe the case of a 78–year old male who acceded to high intensity medicine ward for acute heart failure after some days management in the emergency room, with acuity stabilization. In his history all atherosclerosis‘ risk factors were present (diabetes mellitus type 2, arterial hypertension, dyslipidemia and kidney chronic disease) together with no active IgGk multiple myeloma, diagnosed the month before. A previous echocardiogram demonstrated aortic valve calcifications, preserved ejection fraction and mild mitral valve failure. the emergency echocardiography service was activated and the patient received echocardiography on first day. Echocardiography revealed severe aortic insufficiency secondary to erosive endocarditis of 15 mm in diameter, increased left ventricular filling pressures, and increased estimated right ventricular pressures. empirical antibiotic therapy was immediately undertaken and were carried out blood cultures.from the emergency echocardiography service the cardiology service was activated for a trans–esophageal echocardio execution which confirmed the findings Streptococcus gallolyticus was isolated. only after performing the echocardiogram did the patient remember having had fever for a few days, more than a month before the first symptoms of heart failure. In the next days, colon adenocarcinoma‘s diagnosis was made. Notably Streptococcus gallolyticus‘s infections are frequent in immunocompromised patients and its most common clinical manifestation is infective endocarditis.This kind of infection is usually connected with colon rectum cancer, mostly in patients that have already started chemotherapy. When endocarditis regards people who don‘t make use of intravenous drugs or that haven‘t congenital or acquired valves defects, the most involved one is the aortic valve. This is especially true in elderly patients.That could be explained by aortic valve damage caused by shear stress and atherosclerotic process, that always involves aortic valve‘s endothelium. This damage manifests itselves as calcium endothelium overload and aortic valve stenosis. All of these factors transform the aortic valve into the perfect target for bacteremia.The patient underwent aortic replacement surgery, because of acute massive aortic valve failure, that impaired patient‘s hemodynamic, and proper antibiotics therapy was started, with benefit. Finally, the colon cancer was treated with surgery, no chemotherapy was needed.

P265 RED ZONE: 22 MILES OF FIRE. ANALYSIS OF THE TIMING AND PROCESSES OF ELDERLY PATIENTS WITH ACUTE PULMONARY EMBOLISM IN THE EMERGENCY ROOM. THE REAL–LIFE EXPERIENCE OF 5 YEARS IN THE EMERGENCY ROOM

Purpose

to describe the role of the emergency room in the diagnostic–therapeutic process of acute pulmonary embolism.

Methods

single–center retrospective observational study, on all geriatric patients (> 75 years) who entered our ED, where they were diagnosed with acute PE. Enrollment began in 2016 and ended in 2019. We analyzed means of presentation, priority codes for medical examination, exit code, hospitalization needs. We collected data from medical history, physical examination, laboratory tests, imaging, outcomes.

Results

We enrolled 247 patients, all requiring hospitalization for acute pulmonary embolism. The average age of 83 with female prevalence (63%). Median wait times for medical examination were 42 minutes. The average waiting times, however, for the large number of low priority codes (40% between 5 and 4 codes), was more than 6 hours. All patients required a chest CT with contrast, 44% first did a chest x–ray and 2% an ultrasound. All patients underwent ECG and blood tests. The time spent in the Emergency Department (LOS) was on average 18 hours. 58% of patients were managed in areas of low or medium intensity, 42% were sent to OBI for therapeutic diagnostic completion or necessary monitoring. OBI patients were on average 504 minutes. 56% face the phenomenon of boarding. 34% showed massive EP, 32% showed organ damage. 41% were considered to be at high risk of short–term mortality according to European guidelines, 8% required intensive care and in–hospital mortality was 7.7%. Under triage is 31%.

Conclusions

The population that arrives in ED due to pulmonary embolism presents an overall clinical picture with a high degree and high care and therapeutic complexity. Need for numerous investigations and second level imaging. They often require complex therapies and multi–parameter monitoring during stabilization and observation. Therefore, the time spent in the emergency room is long. The workload to treat these patients is high and requires excellent multi–professional and multidisciplinary integration, especially between the various professional figures in urgency, the laboratory and radiology.

P341 DANTE (DIAGNOSTIC ACUTE PATIENT TOOL IN EMERGENCY) & BEATRICE (BEDSIDE ECHOCARDIOGRAPHIC ASSESMENT FOR IMPROVE CLINICAL EVALUATION) FOR GERIATRIC PATIENTS

Objectives

To determine whether comprehensive quantitative bed side echocardiogram could be used as a usual assessment tool in acute geriatric patients and to assess its effect on patient care.

Design

Retrospective. Setting: DEA di II livello IRCSS Policlinico san Matteo.

Patients

Acute ill medical, trauma and surgical patients. A doctor enrolled in the discipline of emergency medicine was assigned to perform bedside echocardiograms of acute inpatients. This work took only geriatric patients into consideration. (> 65aa). Interventions: The Bedside Echocardiographic AssesmenT foR Improve Clinical Evaluetion (BEATRICE), a comprehensive transthoracic echocardiogram was performed.

Measurements and Main Results

6–month period, 369 BEATRICEs were performed. The mean patient age was 76.2 (±14.3) years. 95% were hospitalized in medical departments and 5% in surgical ward. In 97.4% of cases BEATRICE was performed in a timely manner. The ejection fraction, cardiac index and the volumetric indices of the left ventricle is reported in 97% of the reports. Estimated stroke volume, longitudinal systolic function with tissue Doppler and atrium study is reported in 99.7%, 98.6% and 98.9% of BEATRICE studies. The study of diastolic and atrium function is reported in 99.3% and 98.9% of the reports respectively. Estimated left ventricular filling pressures are reported in 98.3% of the measurements. Information on the vena cava reported for 98%. Right heart function was assessed for 91.8%. Mean or systolic right ventricular pressures, or both, were also estimated in 91.9% of the reports. The BEATRICE was judged to be useful by the consulting primary care team in over 96% of cases, BEATRICEs allow the modification of therapy or the diagnostic process in over 40% of cases (in 27% of cases they allow to significantly modify the therapy and in 16% of cases they allow to significantly modify the diagnostic therapeutic procedure) and speeding up the diagnostic process in over 30% of cases.

Conclusions

The BEATRICE is feasible and alters care in the intensive care unit by providing clinical data not otherwise available at the bedside. Further studies are warranted to assess the impact of comprehensive echocardiogram–directed resuscitation on patient outcomes.

P267 EFFECTIVENESS OF SHOCK INDICES AND ALTERATION OF VITAL PARAMETERS IN THE DIAGNOSTIC SUSPICION OF ORGAN DAMAGE FROM PULMONARY EMBOLISM IN ELDERLY: THE EMERGENCY ROOM AS A WINDOW ON REAL LIFE

Aim

Assess which vital parameters and shock indices correlate with the presence of organ damage from pulmonary embolism to see which ones can help to suspect this condition early.

Methods

Single–center retrospective observational study, on all geriatric patients (> 75 y) who entered our ED, where they were diagnosed with acute PE. Enrollment began in 2016 and ended in 2019. We collected data from medical history, physical examination, laboratory tests, imaging; we calculated the characteristic scores from the diagnostic/therapeutic algorithm, both for the risk of PE (Wells, Geneva and Years), and for the presentation of the risk of mortality at 30 days (sPESI). We then had all chest CTs retested by an experienced radiologist. We went to see the correlation of vital parameters and shock indexes from these derivatives with the presence of organ damage from pulmonary embolism. We considered right ventricular dilation, pulmonary artery dilation and the presence of pulmonary infarction organ damage. We have considered as shock indices: the shock index (SI), the modified shock index (MSI) and the age–shock index (AGE_SI).

Results

We enrolled 247 patients, with a mean age of 83 years and prevalence of female (F = 63%). Of these 79 (32%) have organ damage from pulmonary embolism. There is no correlation between the values of blood pressure, systolic and diastolic, respiratory rate with the presence of organ damage (p > 0.05). However, there is a strong statistical correlation between heart rate values and the presence of organ damage from pulmonary embolism (p < 0.001) The shock index correlates with the presence of organ damage with good statistical strength (p < 0.001 ); also the modified shock index, albeit with a slightly lower statistical strength (P < 0.005). The age–shock index correlates with the presence of pulmonary embolism with excellent statistical strength (p < 0.001).

Conclusions

The alteration of the shock indices, in particular the AGE–shock index, correlate with the condition of organ damage. Taking into consideration these parameters, of very low cost, available from triage and obtainable in a few minutes at the medical examination, which can be easily performed in the various Italian situations, can help to raise the suspicion of organ damage from pulmonary embolism early and address more quickly the patient towards the therapeutic diagnostic process.

P264 ROLE OF BLOOD GAS ANALYSIS AND D–DIMER IN RAISING THE SUSPICION OF MASSIVE PULMONARY EMBOLISM IN GERIATRIC PEOPLE: THE EMERGENCY ROOM AS A WINDOW INTO REAL LIFE

Premise

Massive pulmonary embolism is burdened with high mortality. Raising suspicion and recognizing this condition early allows to avoid delays in the diagnostic and therapeutic process.

Purpose

Assess which parameters of blood gas analysis, in the real life of an Emergency Department, correlate with the presence of massive pulmonary embolism to see which ones can help to suspect it early.

Methods

single–center retrospective observational study, on all geriatric patients (> 75 y) who entered our ED, where they were diagnosed with acute PE. Enrollment began in 2016 and ended in 2019. We collected data from medical history, physical examination, laboratory tests, imaging; we calculated the characteristic scores from the diagnostic / therapeutic algorithm, both for the risk of PE (Wells, Geneva and YEARS), and for the presentation of the risk of mortality at 30 days (sPESI). We looked at all the blood gas analyzes performed at the emergency room access. We then had all chest CTs retested by an experienced radiologist.

Results

We enrolled 247 patients, with a mean age of 83 years with prevalence of female prevalence (F = 63%). Of these, 85 (34.4%) have massive pulmonary embolism. Lactates do not correlate with the presence of massive pulmonary embolism (p > 0.05). The pCO2 values correlate inversely with the presence of massive pulmonary embolism with excellent statistical strength (p < 0.0001). The reduction in pO2 values also correlates with the presence of massive pulmonary embolism, with good statistical strength (p < 0.005). The increase in pH values also correlates with the presence of massive pulmonary embolism, albeit with a lower statistical strength (p < 0.05). The D–Dimer shows a strong association with massive pulmonary embolism values (p < 0.0001).

Conclusions

The study suggests that the reduction of pCO2 values, with an increase in pH and D–Dimer show a strong correlation with the condition of massive pulmonary embolism. Similarly, the pO2 can play a role in the identification of this condition, while no role would seem to have the alteration of lactates. Taking into consideration these parameters, which are quickly available and easily performed in the various Italian situations, can help to raise the suspicion of massive pulmonary embolism early and direct the patient more quickly towards the therapeutic diagnostic process.

P273 MANAGEMENT OF ACUTE PULMONARY EMBOLISM IN GERIATRIC PATIENTS IN THE EMERGENCY ROOM: DOES ADHERENCE TO INTERNATIONAL GUIDELINES REDUCE IN ATYPICAL SYMPTOMS?

Purpose of the Study

Evaluate if and how, in the real life of an Emergency Department, adherence to the Guidelines varies according to the presence of atypical symptoms. We understood dyspnoea, chest pain, signs and symptoms of deep vein thrombosis and syncope as typical symptoms. As atypical symptoms all the others (low–grade fever, vertigo …)

Methods

Single–center retrospective observational study on all geriatric patients (>75 y) who entered our ED, where they received a diagnosis of acute PE. Enrollment began in 2016 and ended in 2019. We collected data from medical history, physical examination, laboratory tests, imaging; we calculated the characteristic scores from the diagnostic/therapeutic algorithm, both for the risk of PE (Wells, Geneva and YEARS), and for the presentation of the risk of mortality at 30 days (sPESI). We then analyzed adherence to the guidelines in three decision turning points: 1 Correct application of the decision scores examined, which classify the patient at low, intermediate or high risk of PE, calculated with Wells and simplified Geneva score; 2 Correct administration of therapy starting from ED as suggested by the guidelines; 3 Any observation in the care area of medium intensity with careful monitoring for the subpopulation of patients with evidence of right ventricular dilation or myocardial enzyme elevation (considered to be at high risk of shock and short–term mortality).

Results

We enrolled 248 patients, with a mean age of 83 years with female prevalence (F = 63%). Of these, only 17 with atypical symptoms and 231 with typical symptoms. The vital signs were comparable in the two groups with no statistically significant difference (p > 0.05). Long–term outcomes such as mortality, need for hospitalization, hospitalization in intensive care and length of stay in hospital are also comparable results with no statistically significant difference (p > 0.05). However, adherence to international guidelines was statistically significantly lower in patients with atypical symptoms (33%) than in patients with typical symptoms (59%) (p < 0.05).

Conclusions

The study suggests that patients with atypical symptoms are more likely to have reduced adherence to international guidelines, most likely due to diagnostic delay.

P268 MANAGEMENT OF ACUTE PULMONARY EMBOLISM IN THE EMERGENCY ROOM IN ELDERLY: DOES ADHERENCE TO INTERNATIONAL GUIDELINES INCREASE IN THE MOST SERIOUS CASES?

Premises

Pulmonary embolism is a pathology still characterized by high mortality. Some international studies have actually shown that adherence to guidelines is generally quite low in both primary and secondary care and ranges, depending on the studies, between 40 and 60%.

Purpose of the Study

see if and how, in the real life of an Emergency Department, adherence to the Guidelines varies according to the severity of the acute pulmonary embolism. We understood this severity as the presence of organ damage or massive pulmonary embolism.

Methods

Single–center retrospective observational study, on all geriatric patients (>75 y) who entered our ED, where they received a diagnosis of acute PE. Enrollment began in 2016 and ended in 2019. We collected data from medical history, physical examination, laboratory tests, imaging; we calculated the characteristic scores from the diagnostic / therapeutic algorithm, both for the risk of PE (Wells, Geneva and Years), and for the presentation of the risk of mortality at 30 days (sPESI). We therefore analyzed adherence to the guidelines in three decisional turning points: 1 Correct application of the decision scores examined, which classify the patient at low, intermediate or high risk of PE, calculated with Wells and simplified Geneva score; 2 Correct administration of therapy starting from ED as suggested by the guidelines; 3 Any observation in the care area of medium intensity with careful monitoring for the subpopulation of patients with finding of right ventricular dilation or myocardial enzyme elevation (considered to be at high risk of shock and short–term mortality).

Results

We enrolled 248 patients, with a mean age of 83 years with female prevalence (F = 62%). Of these, 81 (32.7%) have organ damage and 86 (34.7%) have massive pulmonary embolism. Patients with organ damage received treatment with a higher adherence to the guidelines (68%) than those who did not have organ damage (51%) in a statistically significant way (p < 0.01). Patients with massive pulmonary embolism received treatment with a higher adherence to the guidelines (69 %) than those with peripheral pulmonary embolism (50%) in a statistically significant way (p < 0.005).

Conclusions

The study suggests that patients with organ damage or massive pulmonary embolism are more likely to receive treatment in the emergency room with greater compliance with international guidelines.

IER-SICH Nomogram to Predict Symptomatic Intracerebral Hemorrhage After Thrombectomy for Stroke

Background and Purpose—

As a reliable scoring system to detect the risk of symptomatic intracerebral hemorrhage after thrombectomy for ischemic stroke is not yet available, we developed a nomogram for predicting symptomatic intracerebral hemorrhage in patients with large vessel occlusion in the anterior circulation who received bridging of thrombectomy with intravenous thrombolysis (training set), and to validate the model by using a cohort of patients treated with direct thrombectomy (test set).

Methods—

We conducted a cohort study on prospectively collected data from 3714 patients enrolled in the IER (Italian Registry of Endovascular Stroke Treatment in Acute Stroke). Symptomatic intracerebral hemorrhage was defined as any type of intracerebral hemorrhage with increase of ≥4 National Institutes of Health Stroke Scale score points from baseline ≤24 hours or death. Based on multivariate logistic models, the nomogram was generated. We assessed the discriminative performance by using the area under the receiver operating characteristic curve.

Results—

National Institutes of Health Stroke Scale score, onset-to-end procedure time, age, unsuccessful recanalization, and Careggi collateral score composed the IER-SICH nomogram. After removing Careggi collateral score from the first model, a second model including Alberta Stroke Program Early CT Score was developed. The area under the receiver operating characteristic curve of the IER-SICH nomogram was 0.778 in the training set (n=492) and 0.709 in the test set (n=399). The area under the receiver operating characteristic curve of the second model was 0.733 in the training set (n=988) and 0.685 in the test set (n=779).

Conclusions—

The IER-SICH nomogram is the first model developed and validated for predicting symptomatic intracerebral hemorrhage after thrombectomy. It may provide indications on early identification of patients for more or less postprocedural intensive management.

Gender medicine: an up-date

Women get sick more, use more health services, take more drugs, and have a higher frequency of serious adverse reactions. Despite this, the drugs we use are little studied in women: both clinical studies and pre-clinical experiments are carried out predominantly in males and the young. Before 1990, no more than 26-30% of women were usually enrolled in a trial, so we lacked the statistical power of showing the efficacy and safety of the drugs being studied in the whole population. The gender blindness (transposition of the male studies in female populations) resulted in a lack of awareness of the differences between males and females, and this prevented both genders from receiving the best possible care. This gender bias also, to a lower degree, hurts men: depression, migraines, osteoporosis have not been studied properly in males. Although the process is slow, the scientific community has begun to pay more attention to direct and indirect influences that gender exercise on biological mechanisms, and this includes both internal and external cultural and environmental factors. Therefore, the differences between the old, the young, children, and pregnant women (considered the third gender group) will become increasingly more important as care becomes more personalized. The first course of gender medicine was established only in 2002 at Columbia University, New York, USA. The World Health Organization has incorporated gender medicine into the Equity Act. This implies that the treatment given must be the most appropriate and best suited the individual patient’s gender. The Committee on Women’s Health of the Ministry of Health in Italy was established in 2007. Institutions now pay great attention to the importance of this clinical perspective and are sensitive to the need for change. This review focuses on specific open questions regarding gender: pharmacology, clinical trial recruitment, cardiovascular prevention, stroke, osteoporosis, chronic obstructive pulmonary disease, depression, and discusses presentations made to the 1st course of gender medicine organized as part of the 18th National Congress of the Federation of Associations of Hospital Doctors on Internal Medicine (FADOI), 2012.

Improved aetiological diagnosis of ischaemic stroke in a Vascular Medicine Unit--the significance of transesophageal echocardiogram

BACKGROUND

The TOAST study estimates that 34% of ischaemic strokes are of undetermined aetiology. Improvements in the diagnosis of the pathogenetic mechanism of ischaemic stroke would translate into a better care, in analogy to other fields of vascular and internal medicine.

OBJECTIVE

To measure the reduction of undetermined aetiology strokes performing a set of additional diagnostic tests.

DESIGN

Consecutive case series with historical controls.

SETTING

Internal Medicine Ward with a stroke area (SA) admitting most stroke patients of a large hospital in Italy.

SUBJECTS

A total of 179 ischaemic stroke patients admitted to SA in 2004-2005 compared with 105 ischaemic stroke patients admitted to the whole department in 2001.

INTERVENTION

To perform more diagnostic tests, including transesophageal echocardiography (TEE), in the greatest possible number of ischaemic stroke inpatients admitted in SA of the Internal Medicine Department, in the years 2004-2005.

RESULTS

More diagnostic tests were performed during the study period than in 2001, especially TEE (56% of patients in 2004-2005 vs. 3% of patients in 2001). We observed a significant reduction of undetermined aetiology from 38% in 2001 to 16% in 2004-2005 (p < 0.0001), largely for an increased identification of cases of cardio-embolic mechanism (from 18% to 40%, p = 0.0002). In the years 2004-2005 the fraction of patients on anticoagulant treatment at discharge was 21% vs. 12% in 2001 (p = 0.041).

CONCLUSION

Performing more tests, particularly TEE, brought improvements in the aetiological diagnosis of stroke, increasing cardio-embolism diagnosis and anticoagulant treatment.

Ischemic preconditioning attenuates portal venous plasma concentrations of purines following warm liver ischemia in man

BACKGROUND/AIMS

Degradation of adenine nucleotides to adenosine has been suggested to play a critical role in ischemic preconditioning (IPC). Thus, we questioned in patients undergoing partial hepatectomy whether (i) IPC will increase plasma purine catabolites and whether (ii) formation of purines in response to vascular clamping (Pringle maneuver) can be attenuated by prior IPC.

METHODS

75 patients were randomly assigned to three groups: group I underwent hepatectomy without vascular clamping; group II was subjected to the Pringle maneuver during resection, and group III was preconditioned (10 min ischemia and 10 min reperfusion) prior to the Pringle maneuver for resection. Central, portal venous and arterial plasma concentrations of adenosine, inosine, hypoxanthine and xanthine were determined by high-performance liquid chromatography.

RESULTS

Duration of the Pringle maneuver did not differ between patients with or without IPC. Surgery without vascular clamping had only a minor effect on plasma purine concentrations. After IPC, plasma concentrations of purines transiently increased. After the Pringle maneuver alone, purine plasma concentrations were most increased. This strong rise in plasma purines caused by the Pringle maneuver, however, was significantly attenuated by IPC. When portal venous minus arterial concentration difference was calculated for inosine or hypoxanthine, the respective differences became positive in patients subjected to the Pringle maneuver and were completely prevented by preconditioning.

CONCLUSION

These data demonstrate that (i) IPC increases formation of adenosine, and that (ii) the unwanted degradation of adenine nucleotides to purines caused by the Pringle maneuver can be attenuated by IPC. Because IPC also induces a decrease of portal venous minus arterial purine plasma concentration differences, IPC might possibly decrease disturbances in the energy metabolism in the intestine as well.

Effects of Pringle manoeuvre and ischaemic preconditioning on haemodynamic stability in patients undergoing elective hepatectomy: a randomized trial

BACKGROUND

The Pringle manoeuvre and ischaemic preconditioning are applied to prevent blood loss and ischaemia-reperfusion injury, respectively, during liver surgery. In this prospective clinical trial we report on the intraoperative haemodynamic effects of the Pringle manoeuvre alone or in combination with ischaemic preconditioning.

METHODS

Patients (n=68) were assigned randomly to three groups: (i) resection with the Pringle manoeuvre; (ii) with ischaemic preconditioning before the Pringle manoeuvre for resection; (iii) without pedicle clamping.

RESULTS

Following the Pringle manoeuvre the mean arterial pressure increased transiently, but significantly decreased after unclamping as a result of peripheral vasodilation. Ischaemic preconditioning improved cardiovascular stability by lowering the need for catecholamines after liver reperfusion without affecting the blood sparing benefits of the Pringle manoeuvre. In addition, ischaemic preconditioning protected against reperfusion-induced tissue injury.

CONCLUSIONS

Ischaemic preconditioning provides both better intraoperative haemodynamic stability and anti-ischaemic effects thereby allowing us to take full advantage of blood loss reduction by the Pringle manoeuvre.

[Management of stroke in a ward of internal medicine. Limits and prospects]

Precocious admission to specifically "dedicated" wards proved to improve reduction of mortality and degree of residual disability in patients with stroke, even if their inhomogeneous distribution gets most patients admitted to wards of Internal Medicine. We purposed to evaluate the importance of this problem, to check adhesion to the national guidelines and to show the main problems in management of patients with stroke in the Operative Unit of Internal Medicine, Vascular and Metabolic Diseases of the IRCCS S. Matteo Hospital of Pavia. 143 patients with stroke were admitted in 2001, 126 were ischemic, 17 hemorragic; the mean age was of 73. The most frequent risk factors were hypertension, diabetes, smoke and atrial fibrillation. 59% of patients were admitted within 6 hours from onset of symptoms. Within the ischemic subtypes, 17.5% were atherotrombothic, 16.7% cardioembolic, 23.8% lacunar and 42% with undetermined etiology. Lacunar syndromes were the most part. 80% of patients underwent computed tomography, 50% underwent epiaortic Doppler sonography, 38% echocardiography. 61% of ischemic subtypes underwent acute antiplatelet treatment. Complications were prevalent in oldest patients. Mortality of inpatients was 17%, influenced by age, hypertension, severe sensorial compromission at admission, cardioembolism and complications. This study proved leak of adhesion to national guidelines which brought to inadequate accuracy in diagnosis and difficulty in making correct and coherent therapeutic choices. At least in great hospitals, "dedicated" areas in wards of Internal Medicine with selected, trained and motivated staff should be desirable.

Cryopreservation of reduced cytochrome C for determination of N-formyl-methionyl-leucyl-phenylalanine-stimulated superoxide anion production in human whole blood

Various methods are available for measuring the production of reactive oxygen species by phagocytes, but they are limited in their use by the need for their immediate application, cell isolation and of cell-activation by unphysiological stimuli. In addition, after measurement of reactive oxygen metabolites using oxidizing agents, the reduced compounds formed have to be determined during or immediately after their formation. In the present study, an improved cytochrome C assay was investigated which allowed measurements of superoxide anions in whole blood samples following activation of phagocytes by physiological stimuli such as the bacterial tripeptide N-formyl-methionyl-leucyl-phenylalanine (fMLP). The fMLP-stimulated production of superoxide anion (O(2)(-)) showed a sigmoidal-shaped fMLP dose-response curve, and constant O(2)(-) production rates (nmol.1(-1)x10(6) granulocytes) could be determined reliably up to a blood granulocyte concentration of 1 x 10(4) x microl(-1). To allow the determination of reduced cytochrome C later after its formation, the effect of long-term storage at -20 degrees C on the stability of reduced cytochrome C was tested up to 16 weeks. The results obtained show that the determination of reduced cytochrome C in whole blood represents a simple and reliable method. Most importantly, O(2)(-)-reduced cytochrome C can be frozen and stored without any alterations, at least up to 2 weeks. Thus the method seems to be superior to other methods of detection, especially when the experimental conditions do not allow immediate spectrophotometry (e.g. mountain medicine, space medicine). Under such conditions the present assay would allow reliable measurement of reduced cytochrome C, even after weeks of cryopreservation.

Nephrotic-range proteinuria, the major risk factor for early atherosclerosis in juvenile-onset systemic lupus erythematosus

OBJECTIVE

To determine the presence of early carotid atherosclerosis and associated risk factors in patients with juvenile-onset systemic lupus erythematosus (SLE).

METHODS

The carotid intima-media wall thickness (IMT) was measured by B-mode ultrasound in patients with SLE onset before the age of 16 years and in sex- and age-matched healthy control subjects. Risk factors for atherosclerosis were determined at the time of the ultrasound scan and included traditional cardiovascular and SLE-related risk factors.

RESULTS

Twenty-six patients with juvenile-onset SLE and 26 healthy controls were studied. The mean (+/- SD) IMT of the SLE patients was significantly higher than that of the control group (0.57+/-0.05 mm and 0.54+/-0.03 mm, respectively; P = 0.006). The results of IMT measurement were not correlated with the patients' age, disease duration, SLE Disease Activity Index (SLEDAI) score, Systemic Lupus International Collaborating Clinics/American College of Rheumatology (SLICC/ACR) Damage Index (DI) score, laboratory indicators of lupus activity, or cumulative prednisone dose. Patients with nephrotic-range (NR) proteinuria (> or = 3.5 gm/24 hours; n = 6) had a significantly higher IMT than did those without (n = 20) (P = 0.02). Patients with NR proteinuria also had significantly higher SLEDAI scores, SLICC/ACR DI scores, and systolic and diastolic blood pressures, and significantly higher levels of total cholesterol, low-density lipoprotein cholesterol, apolipoprotein B, and fibrinogen. No difference in any of the above variables, including the IMT, was observed when SLE patients without NR proteinuria were compared with healthy controls.

CONCLUSION

These patients with juvenile-onset SLE had ultrasonographic evidence of premature atherosclerosis. The risk of early atherosclerosis may be higher in patients with NR proteinuria.

Plasminogen activator inhibitor-1 and carotid intima-media thickening in patients with newly detected primary hypertension

OBJECTIVE

To investigate the correlation between ultrasonographically evaluated intima-media thickness (IMT) of common carotid artery (CCA) and cardiovascular risk factors for subjects with newly detected, uncomplicated and untreated primary hypertension.

METHODS

The study population consisted of 200 subjects (123 men and 77 women, aged 46+/-7.5 years). Blood pressure was measured in the clinical setting and by 24 h noninvasive ambulatory monitoring. Fasting levels of blood glucose, plasma lipids and lipoproteins, fibrinogen and plasminogen activator inhibitor (PAI)-1 were measured. Ultrasound examination included measurement of far-wall intima-media complex of CCA and morphologic evaluation of occurrence of plaques in carotid and femoral bifurcations.

RESULTS

The prevalence of greater than normal IMT (mean IMT > or =0.80 mm) was 22%. Significant univariate correlations to the dichotomy between normal and greater than normal mean IMT were detected for age, smoking, level of LDL cholesterol, level of PAI-1 and total ultrasonographic score. Multivariate logistic regression analysis confirmed the associations between greater than normal mean IMT and plasma concentrations of LDL cholesterol and PAI-1 as well as total ultrasonographic score.

CONCLUSION

Greater than normal IMT of CCA was more strictly related to other cardiovascular risk factors than it was to blood pressure and was strongly associated with the occurrence of atherosclerotic plaques in carotid and femoral arteries. The role of PAI-1 in intima-media thickening that is emerging suggests that fibrinolytic balance is an important determinant of vessel-wall homeostasis in hypertensive patients.

Carotid intima-media thickening and in vivo LDL oxidation in patients with essential hypertension

Low density lipoproteins (LDL) from hypertensive patients are more prone to in vitro oxidation and undergo a more pronounced oxidation in vivo. Due to the pro-atherogenic activity of oxidatively modified LDL, the correlation between the carotid intima-media thickening (IMT) and the markers of in vivo LDL oxidation was investigated in hypertensive patients. A cross-sectional study on 101 normocholesterolemic patients with newly diagnosed and untreated essential hypertension was performed. The occurrence of in vivo LDL oxidation was evaluated by measuring the titers of autoantibodies against Cu(2+)-oxidised LDL (oxLDL) and malondialdehyde-derivatised LDL (MDA-LDL). The extent and degree of atherosclerosis and the IMT were measured by means of carotid and femoral ultrasonography with a duplex scanner equipped with a high resolution probe. We did not find significant correlations between in vivo LDL oxidation parameters and the extent of atherosclerotic lesion in the entire group of hypertensive patients. However, a significant direct correlation was detected between the carotid IMT and the titer of autoantibodies against both oxLDL and MDA-LDL in hypertensive patients without advanced atherosclerotic plaques. The results obtained support the hypothesis that enhanced LDL oxidation may be one of the pathophysiological events related to the formation and progression of early atherosclerotic lesions (IMT) in carotid arteries of hypertensive patients.

Presence of autoantibodies against oxidatively modified low-density lipoprotein in essential hypertension: a biochemical signature of an enhanced in vivo low-density lipoprotein oxidation

OBJECTIVE

We have previously reported that low-density lipoproteins (LDL) isolated from patients with essential hypertension are more susceptible to in vitro oxidation than lipoproteins isolated from normotensive control subjects. In the present study we investigated the occurrence of in vivo LDL oxidation in hypertensive patients.

DESIGN

The presence of antioxidatively modified LDL autoantibodies was taken as a suitable index of in vivo LDL oxidation because, after oxidative modifications, LDL express antigenic epitopes that elicit an immune response. The antibody titres were measured in plasma from untreated patients with newly diagnosed essential hypertension.

METHODS

An enzyme-linked immunosorbent assay method was employed, using native LDL, Cu(2+)-oxidized LDL and malondialdehyde-derivatized LDL (MDA-LDL) as antigens. Human serum albumin and MDA human serum albumin were also used to monitor cross-reactivity with other oxidized molecules. The antibody titre was expressed as the ratio between anti-modified and anti-native antigen absolute values.

RESULTS

The patients with essential hypertension had an antibody ratio significantly higher than control subjects with respect to anti-Cu(2+)-oxidized LDL immunoglobulins G and M, and with respect to anti-MDA-LDL immunoglobulins G and M. A significant positive correlation was found between anti-MDA-LDL and anti-Cu(2+)-oxidized LDL antibody titres. The anti-MDA human serum albumin antibody titre was not different in the two groups of patients. An inverse correlation was detected between the anti-MDA-LDL immunoglobulin M titre and the age of the patients.

CONCLUSIONS

The results obtained are consistent with the view that, during the early phases of hypertension development, LDL undergo in vivo oxidation that is mirrored by the generation of autoantibodies against epitopes of oxidized LDL. The oxidation process appears specific for LDL and might be relevant both for the progression of hypertension and for the development of the atherosclerosis that often complicates hypertension itself.

[Autoantibodies against oxidised low density lipoproteins in patients with coronary disease]

OBJECTIVES

Evidence has been obtained indicating that oxidation of low-density lipoproteins (LDL) plays a relevant role in the pathogenesis of atherosclerosis and it has been proposed that, due to the antigenic properties of oxidized LDL, the anti-oxLDL antibody titre could represent a useful index of in vivo LDL oxidation.

METHODS

Sixty-nine control subjects and 64 patients scheduled for selective coronary revascularization were investigated before surgery.

RESULTS

The coronary disease patients had a higher level of total plasma cholesterol, LDL cholesterol and triglycerides, and a lower level of HDL cholesterol. Plasma anti-oxLDL antibody titre was measured as the ratio of antibody binding to CuSO4-oxidised LDL versus native LDL. The antibody ratio was higher in coronary patients as compared with control subjects (1.56 +/- 0.5 vs 1.0 +/- 0.3, p < 0.01). A ratio higher than 1.34 (mean of controls +/- one standard deviation) was present in 60% of the coronary patients. Subclass analysis indicated that the presence of diabetes mellitus and hypercholesterolaemia (but not of hypertension, generalized arteriosclerosis, myocardial infarction and cigarette smoking) increased the anti-oxLDL antibody ratio to 1.72 +/- 0.4 and 1.68 +/- 0.3 respectively.

CONCLUSION

The results obtained indicate that a) a high titre of anti-oxLDL antibodies is present in plasma of patients with coronary atherosclerosis, b) in these patients LDL oxidation takes place in vivo and probably plays a critical role in the development and progression of atherosclerosis.

Metabolic effects of the combination of captopril and hydrochlorothiazide in hypertensive subjects

The medium-term (16 weeks) effects of the combination of captopril and hydrochlorothiazide (HCTZ) on some metabolic indexes, particularly on plasma lipoproteins, were evaluated in 20 mild to moderate hypertensive outpatients. After a 4-week wash-out period, the subjects were given one tablet of a new commercially available fixed combination once/daily (i.e., captopril 50 mg + HCTZ 25 mg). The dose could be titrated to a maximum of one tablet twice daily according to individual blood pressure responses. Both systolic and diastolic blood pressure significantly decreased at week 4 and showed a further decrease thereafter; the rate of responders (diastolic blood pressure at or below 90 mm Hg at the end of the study) was very high (90%). The only metabolic change was a small though significant increase in HDL cholesterol (P less than .05), almost entirely due to an increase in the denser HDL3 subfraction. The atherogenic fractions, namely total cholesterol, LDL cholesterol, and apoprotein B, showed no significant changes. Plasma triglycerides underwent a transient increase at week 8 (P less than .05) but thereafter fell. Plasma glucose, creatinine, uric acid, and potassium were unchanged. The fixed combination of captopril and HCTZ seems highly effective in lowering blood pressure and seems devoid of untoward metabolic effects. Its overall impact on the coronary risk profile in hypertensive subjects seems therefore to be favorable.

Effect of mepindolol on serum lipids

In view of the postulated association between plasma lipids and the development of atherosclerosis, there is growing interest in the effects of beta blockers on plasma lipids. This study was undertaken to investigate whether a nonselective beta blocker, such as mepindolol, which possesses intrinsic sympathomimetic activity, causes significant changes in serum lipids, particularly in their ditribution among the different lipoproteins. Eighteen healthy subjects, twelve males and six females, were given mepindolol orally, daily doses of 0.2 mg/kg averaging 10-15 mg. Pre- and post-treatment fasting total serum cholesterol, HDL cholesterol, LDL cholesterol, and triglycerides were evaulated; the ratio LDL cholesterol/HDL cholesterol was also calculated. Total cholesterol did not change significantly after treatment with mepindolol (- 1.9 mg%), whereas a small and nonsignificant decrease was observed in LDL cholesterol (- 6 mg%); no change was found in HDL cholesterol (- 0. mg%). Serum triglycerides showed a significant increase (+ 20.9 mg%, p less than 0.01). Thus, the most prominent effect of even a short period of treatment with mepindolol is a net increase in serum triglyceride levels. It must be remembered that high triglyceride levels do not constitute a cardiovascular risk factor. On the other hand, no significant changes in total cholesterol, HDL and LDL cholesterol, and in LDL cholesterol/HDL cholesterol ratio were observed. The results of this study show that mepindolol, unlike other beta-blocking agents, does not affect cholesterol concentration and distribution among the lipoproteins. In particular it does not reduce HDL cholesterol, which is currently assumed to be inversely related to the development of atherosclerosis.