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1.
Curr Probl Diagn Radiol ; 46(3): 177-180, 2017.
Article in English | MEDLINE | ID: mdl-28162863

ABSTRACT

Preprocedural evaluation of patients in an interventional radiology (IR) clinic is a complex synthesis of physical examination and imaging findings, and as IR transitions to an independent clinical specialty, such evaluations will become an increasingly critical component of a successful IR practice and quality patient care. Prior research suggests that preprocedural evaluations increased patient's perceived quality of care and may improve procedural technical success rates. Appropriate documentation of a preprocedural evaluation in the medical record is also paramount for an interventional radiologist to add value and function as an effective member of a larger IR service and multidisciplinary health care team. The purpose of this study is to examine the quality of radiology resident notes for patients seen in an outpatient IR clinic at a single academic medical center before and after the adoption of clinic note template with reminders to include platelet count, international normalized ratio, glomerular filtration rate, and plan for periprocedural coagulation status. Before adoption of the template, platelet count, international normalized ratio, glomerular filtration rate and an appropriate plan for periprocedural coagulation status were documented in 72%, 82%, 42%, and 33% of patients, respectively. After adoption of the template, appropriate documentation of platelet count, international normalized ratio, and glomerular filtration rate increased to 96%, and appropriate plan for periprocedural coagulation status was documented in 83% of patients. Patient evaluation and clinical documentation skills may not be adequately practiced during radiology residency, and tools such as templates may help increase documentation quality by radiology residents.


Subject(s)
Ambulatory Care/standards , Documentation/standards , Radiology, Interventional/education , Radiology, Interventional/standards , Clinical Competence , Education, Medical, Graduate , Humans , Quality Indicators, Health Care , Referral and Consultation , Retrospective Studies
2.
Dig Dis Sci ; 47(4): 831-6, 2002 Apr.
Article in English | MEDLINE | ID: mdl-11991618

ABSTRACT

The role of H. pylori infection in increasing the risk of ischemic heart diseases (IHD) is still debated. We determined serologically the prevalence of overall H. pylori and CagA-positive H. pylori infection in 63 consecutive patients with IHD and 189 gender- and age-matched controls. We also determined in patients the influence of the infection and the CagA serological status on the results of an exercise ECG test and other parameters considered possible variables that may enhance the risk of IHD. The prevalence of H. pylori infection in patients and controls was 79.3% and 73.0%, respectively (P = 0.403) and that of CagA-positive H. pylori infection was 69.8% and 42.3%, respectively (P = 0.0002). The scores of the ECG S-T segment and T-wave abnormalities in the course of an exercise ECG in uninfected patients and in patients infected by CagA-negative and CagA-positive H. pylori strains were (mean +/- SD): 1.59 +/- 0.67, 1.92 +/- 0.64, and 2.19 +/- 0.70, respectively; (P = 0.011, 95% confidence limits of difference 0.15-1.07, CagA-positive infected vs uninfected patients). There was no intergroup difference in the levels of peripheral white blood cells, glucose, cholesterol, triglycerides, creatinine, and systolic and diastolic pressure. In conclusion, genetic heterogeneity of H. pylori could possibly explain some conflicting results concerning the association of H. pylori infection with IHD. Coronary vessels of IHD patients infected by CagA-positive H. pylori strains may be damaged more severely than those of uninfected patients.


Subject(s)
Antigens, Bacterial , Bacterial Proteins/metabolism , Helicobacter Infections/complications , Helicobacter pylori/metabolism , Myocardial Ischemia/microbiology , Adult , Aged , Electrocardiography , Exercise Test , Helicobacter Infections/epidemiology , Helicobacter pylori/genetics , Humans , Middle Aged , Myocardial Ischemia/etiology , Myocardial Ischemia/physiopathology , Prevalence , Risk Factors
3.
Contraception ; 64(3): 145-8, 2001 Sep.
Article in English | MEDLINE | ID: mdl-11704092

ABSTRACT

Increases in blood pressure and weight are consequences of increased fluid retention following oral contraceptives administration. Hypertension and weight increase are particularly frequent in women over 35 years of age. The aim of the present study was to evaluate the clinical and hormonal effects of a new extra-low dose oral contraceptive [15 microg ethinyl estradiol (EE) and 60 microg gestodene (GSD)] on the renin-aldosterone system in a group of women aged 35-39 years treated for 3 months compared with a formulation containing the same hormones at a higher dose. Eighteen healthy women, age 35-39 years, were divided into two groups. The first group (10 women) used Arianna, Schering, 15 microg EE/60 microg GSD (EE15/GSD60); the second group (8 women) used Fedra, Schering, 20 microg EE/75 microg GSD (EE20/GSD75). Blood samples were obtained before the study and after 3 months of contraceptive use for assay of renin and aldosterone. Blood pressure was also measured on both occasions. No significant changes in plasma renin activity (PRA) or plasma concentrations of aldosterone were observed between the two groups after 3 months of contraceptive use. The mean increase in body weight after 3 months of contraceptive use was 350 +/- 100 g for EE20/GSD75 and 300 +/- 50 g for EE15/GSD60. There was a mean increase of 4 mm Hg for systolic pressure and 2 mm Hg for diastolic pressure in women on EE20/GSD75 and corresponding increases of 3 and 2 mm Hg in women on EE15/GSD60. The changes were not significant in any case. The results of the present study show that the formulations were well tolerated and provided good control of the menstrual cycle in all 18 women. The contraceptive formulations EE20/GSD75 and EE15/GSD60 have no clinical impact on blood pressure, PRA, or aldosterone in this age group.


Subject(s)
Aldosterone/blood , Blood Pressure/drug effects , Body Weight/drug effects , Contraceptives, Oral/administration & dosage , Contraceptives, Oral/adverse effects , Drug Evaluation , Ethinyl Estradiol/administration & dosage , Ethinyl Estradiol/adverse effects , Hypertension/chemically induced , Norpregnenes/administration & dosage , Norpregnenes/adverse effects , Renin/blood , Adult , Female , Humans
4.
Can J Cardiol ; 17(5): 571-7, 2001 May.
Article in English | MEDLINE | ID: mdl-11381279

ABSTRACT

BACKGROUND: Hypertension is a major cardiovascular risk factor in the development of coronary artery disease (CAD); therefore, evaluating the presence of CAD is a primary clinical goal. However, the noninvasive tests that are commonly used have poor diagnostic specificity, particularly in patients with left ventricular hypertrophy. OBJECTIVES: To assess the prognostic value of dipyridamole stress echocardiography (DET) for ischemic events in a subset of patients with hypertension with left ventricular hypertrophy, chest pain and resting electrocardiographic repolarization abnormalities. PATIENTS AND METHODS: Eighty-two patients (48 men and 34 women; average age 65+/-7.2 years with left ventricular hypertrophy documented echocardiographically (left ventricular mass index greater than 50 g/h(2.7)), and resting ST segment shift of 0.1 mV or more from baseline at 80 ms after J point in at least two contiguous leads, were submitted to DET according to high-dosage protocol and coadministered with atropine. RESULTS: The follow-up period was 25.11+/-8.3 months. The stress test produced positive results in 30 patients (36.5%); 16 (53%) and three (5%) cardiac events occurred in positive and negative stress test groups, respectively. At multivariate analysis, only positive DET response (P=0.000002), left ventricular mass index (P=0.028) and a family history of CAD (P=0.037) were independent predictors. The two-year event-free survival rates were 95% and 47% (log-rank 21.093, P=0.00001) for negative and positive stress test results, respectively. CONCLUSIONS: DET is a useful tool in the prognostic assessment of coronary events in this particular subgroup of patients with hypertension.


Subject(s)
Chest Pain/complications , Coronary Disease/diagnosis , Dipyridamole , Echocardiography/methods , Hypertension/complications , Hypertrophy, Left Ventricular/complications , Aged , Coronary Disease/etiology , Electrocardiography , Electrophysiologic Techniques, Cardiac , Exercise Test/methods , Female , Humans , Male , Middle Aged , Predictive Value of Tests , Prognosis , Risk Assessment
5.
Int J Cardiol ; 75(2-3): 227-32, 2000 Sep 15.
Article in English | MEDLINE | ID: mdl-11077138

ABSTRACT

Atrial fibrillation is associated with a prothrombotic state and endothelial dysfunction. To understand whether the prothrombotic state was correlated with endothelial dysfunction and whether the latter was related to atrial dimension (endocardial damage), we studied systemic hemocoagulative activity and markers of endothelial dysfunction in 45 patients with chronic nonrheumatic atrial fibrillation and in 35 controls. We assessed fibrinogen, antithrombin III, protein C, markers of platelet activation (platelet factor 4 and beta-thromboglobulin) as markers of fibrinolysis, and D-dimer, tissue plasminogen activator, plasminogen activator inhibitor, von Willebrand's factor and soluble thrombomodulin as endothelial dysfunction. Plasma fibrinogen (P<0. 005), platelet factor 4 (P<0.001), thromboglobulin (P<0.001), D-dimer (P<0.03), tissue plasminogen activator (P<0.006), plasminogen activator inhibitor (P<0.04) and both von Willebrand's factor (P<0.0001) and soluble thrombomodulin (P<0.03) were significantly higher in the patients than in the controls. Positive significant linear correlations were found between fibrinogen and markers of endothelial dysfunction and left atrial volume and fibrinogen or markers of endothelial dysfunction. These findings confirm that chronic nonrheumatic atrial fibrillation is associated with a prothrombotic state but also suggest that there is a correlation between endothelial dysfunction, coagulation factors and left atrial dimension.


Subject(s)
Atrial Fibrillation/physiopathology , Endothelium, Vascular , Heart Atria/pathology , Aged , Atrial Fibrillation/blood , Atrial Fibrillation/pathology , Biomarkers , Chronic Disease , Female , Fibrinogen/analysis , Hemodynamics , Humans , Male , Middle Aged , Plasminogen Inactivators/analysis , Platelet Activation , von Willebrand Factor/analysis
6.
Am J Hypertens ; 13(6 Pt 1): 593-600, 2000 Jun.
Article in English | MEDLINE | ID: mdl-10912740

ABSTRACT

To assess whether aerobic exercise training is an effective and an alternative method to control blood pressure (BP) in hypertension, 32 uncomplicated, never treated patients suffering from mild-to-moderate essential arterial hypertension (EAH) were included in an aerobic exercise training program using a regular standardized cycle ergometer exercise for 3 months. In all EAH patients, before and after the exercise training period, ambulatory BP monitoring (ABPM) was performed and several metabolic variables were assessed. Before exercise, in 20 EAH patients, a 48-h ABPM showed a normal day-night rhythm, with nocturnal BP decrease, according to a dipper-type hypertension, whereas in 12 EAH patients 48-h ABPM profile indicated a nondipper-type hypertension. After exercise, EAH dippers presented a significant decrease in the daytime systolic and diastolic BP, whereas EAH nondippers did not show any change in daytime and nighttime systolic and diastolic BP. Our study confirms the controversy about the postulated BP lowering effect of dynamic exercise in EAH patients, in the sense that only EAH dipper patients seem to obtain a beneficial diurnal lowering BP effect deriving from exercise, possibly through a reduction in sympathetic tone. On the contrary, physical activity seems to fail in reducing diurnal and nocturnal BP values in EAH nondippers, suggesting that in nondipper-type hypertension, other "masking" endogenous or exogenous factors could interfere with and prevail over the adrenergic-vagal balance that modulates the day-night BP synchronism.


Subject(s)
Blood Pressure/physiology , Exercise Therapy , Hypertension/rehabilitation , Physical Fitness/physiology , Adult , Blood Pressure Monitoring, Ambulatory , Circadian Rhythm/physiology , Exercise Test , Female , Humans , Hypertension/physiopathology , Male , Severity of Illness Index , Treatment Failure
7.
J Cardiovasc Pharmacol ; 35(6): 926-31, 2000 Jun.
Article in English | MEDLINE | ID: mdl-10836728

ABSTRACT

Recent studies showed that in diabetic hypertensive patients, administration of angiotensin-converting enzyme (ACE)-inhibitors or calcium antagonists can effectively lower blood pressure (BP) and prevent diabetes-related cardiovascular complications with no adverse metabolic effects. We sought to assess the antihypertensive and metabolic effects of the new dihydropyridine calcium antagonist manidipine (M) in patients with diabetes mellitus and essential hypertension as compared with the ACE inhibitor enalapril (E). After 3 weeks of placebo, 101 (62 men; age range, 34-72 years) hypertensives with type II diabetes mellitus were randomized to M 10-20 mg or E 10-20 mg, od, for 24 weeks. At the end of the placebo period and the active-treatment phase, BP was measured with a mercury sphygmomanometer (office, O) and over the 24 h by ambulatory (A) monitoring. ABP recordings were analyzed to obtain 24-h, day (6 a.m. to midnight), and night (midnight to 6 a.m.) average systolic (S) and diastolic (D) BP and heart rate (HR) values. Homogeneity of the antihypertensive effect over the 24 h was assessed by the smoothness index [SI: i.e., the ratio between the average of the 24 hourly BP changes after treatment and the corresponding standard deviation (the higher the SI, the more uniform is the BP control by treatment over the 24 h]. The O SBP and DBP were significantly (p < 0.01) and similarly reduced by M (16 +/- 10 and 13 +/- 6 mm Hg, n = 49) and E (15 +/- 10 and 13 +/- 6 mm Hg, n = 45). The percentage of patients whose O DBP was reduced < or = 85 mm Hg (i.e., the value indicated to be the optimal DBP goal in diabetic hypertensives) was similar for M (37%) and E (40%). The reduction of 24-h BP also was similar between M (n = 38) and E (n = 38) for both drugs (systolic, 6 +/- 11 and 8 +/- 10 mm Hg; diastolic, 5 +/- 8 and 5 +/- 7; NS, M vs. E). The antihypertensive effect was distributed in a similar homogeneous fashion throughout the dosing interval, as shown by the similar SI values (M, 0.6 +/- 1.2 for SBP and 0.6 +/- 0.9 for DBP; E, 0.6 +/- 0.8 for SBP and 0.5 +/- 0.7 for DBP; NS, M vs. E). O and A HR were unchanged by either treatment. Markers of glucose and lipid metabolism and renal function were not significantly modified by treatment both with M and with E. In the diabetic hypertensives, M was as effective and metabolically neutral as the ACE-inhibitor E.


Subject(s)
Angiotensin-Converting Enzyme Inhibitors/therapeutic use , Antihypertensive Agents/therapeutic use , Diabetes Mellitus, Type 2/drug therapy , Dihydropyridines/therapeutic use , Enalapril/therapeutic use , Hypertension/drug therapy , Adult , Aged , Blood Glucose/drug effects , Blood Glucose/metabolism , Blood Pressure/drug effects , Blood Pressure Monitoring, Ambulatory , Cholesterol/metabolism , Cholesterol, LDL/drug effects , Cholesterol, LDL/metabolism , Diabetes Mellitus, Type 2/complications , Diabetes Mellitus, Type 2/physiopathology , Diastole , Double-Blind Method , Glycated Hemoglobin/drug effects , Glycated Hemoglobin/metabolism , Heart Rate/drug effects , Humans , Hypertension/complications , Hypertension/physiopathology , Male , Middle Aged , Nitrobenzenes , Piperazines , Systole , Treatment Outcome , Triglycerides/metabolism , Uric Acid/metabolism
8.
J Hypertens ; 15(12 Pt 1): 1511-8, 1997 Dec.
Article in English | MEDLINE | ID: mdl-9431859

ABSTRACT

OBJECTIVES: To compare 24 h ambulatory blood pressure and trough office blood pressure lowerings after 8 weeks of therapy with 75 mg irbesartan once a day, 150 mg irbesartan once a day , and 75 mg irbesartan twice a day versus placebo; and to assess safety and tolerability of irbesartan therapy. DESIGN: Multicenter, double-blind, randomized, placebo-controlled trial. SETTING: Sixteen centers in Italy. PATIENTS: Caucasian patients (n = 215) aged > or = 18 years with seated diastolic blood pressure 95-110 mmHg and ambulatory diastolic blood pressure (ADBP) > or = 85 mmHg. PRIMARY OUTCOME: Mean 24 h ADBP after 8 weeks of irbesartan therapy. RESULTS: Mean changes (value before treatment minus value after treatment) in ADBP for placebo, 75 mg irbesartan once a day, 150 mg irbesartan once a day, and 75 mg irbesartan twice a day were -0.2, -5.4, -7.2, and -7.2 mmHg, respectively; respective changes in ambulatory systolic blood pressure were +1.6, -8.3, -10.5, and -9.7 mmHg. All irbesartan regimens reduced trough office seated diastolic blood pressure and seated systolic blood pressure after 2 and 8 weeks of treatment (all P < 0.01, versus placebo except for seated systolic blood pressure in patients in the 75 mg irbesartan once a day group). Trough: peak ratios were > or = 55% with 150 mg irbesartan once a day. Percentages of patients whose blood pressures were normalized with 150 mg irbesartan once a day (45%) and 75 mg irbesartan twice a day (47%) were greater than those with placebo (14%, P < 0.01) and with 75 mg irbesartan once a day (19%, NS, versus placebo). Adverse events with irbesartan were similar to those with placebo. CONCLUSIONS: All irbesartan regimens significantly reduced mean 24 h ADBP and ambulatory systolic blood pressure, and were well tolerated. Administration of 150 mg irbesartan once a day provided significant reduction of blood pressure for 24 h, equivalent to that obtained with the same daily dose divided into two separate administrations.


Subject(s)
Antihypertensive Agents/administration & dosage , Biphenyl Compounds/administration & dosage , Blood Pressure Determination/methods , Blood Pressure/drug effects , Circadian Rhythm/physiology , Monitoring, Ambulatory , Tetrazoles/administration & dosage , Aged , Antihypertensive Agents/blood , Antihypertensive Agents/therapeutic use , Biphenyl Compounds/blood , Biphenyl Compounds/therapeutic use , Double-Blind Method , Drug Administration Schedule , Female , Humans , Irbesartan , Male , Middle Aged , Tetrazoles/blood , Tetrazoles/therapeutic use , Treatment Outcome
9.
G Ital Cardiol ; 26(5): 519-25, 1996 May.
Article in Italian | MEDLINE | ID: mdl-8767775

ABSTRACT

BACKGROUNDS: Various cardiac abnormalities have been described in patients with Behçet's disease. The number of reports remains small, but increasing awareness have widened the spectrum of manifestations. We report our evaluation of cardiac involvement in 15 patients affected by Behçet's disease, diagnosed according to the criteria for the International Study Group for Behçet's Disease. PATIENTS AND METHODS: All the patients have been examined by a clinical, biochemical and instrumental point of view. Six patients resulted to be affected by heart diseases, in particular by mitral valve prolapse; moreover one of them presented an unexpected dilatative cardiomyopathy. CONCLUSIONS: The authors affirm that the pathological heart features are not so uncommon as previously reported in literature, emphasizing the necessity of a constant evaluation for the cardiovascular system also in the asymptomatic patients.


Subject(s)
Behcet Syndrome/complications , Heart Diseases/etiology , Adult , Female , Humans , Male , Middle Aged
10.
Arch Gerontol Geriatr ; 22 Suppl 1: 113-8, 1996.
Article in English | MEDLINE | ID: mdl-18653017

ABSTRACT

In elderly hypertensive patients (HP) blood pressure (BP) and heart rate (HR) control and variability seem to be affected by a reduced baroreceptor sensitivity, or autonomic dysfunction, and concomitant cardiovascular diseases. Therefore, the aim of present study was to investigate the circadian profiles and variability of BP and HR, by means of a 24-hour ambulatory BP monitoring, in a group of 22 elderly HP compared with those of a group of 24 middle aged patients with essential hypertension. Many differences in BP and HR profile and variability were observed in elderly HP when compared to those of middle aged HP, such as significantly lower diurnal diastolic BP values, lower nocturnal BP fall, lower diurnal HR but with a greater diurnal variability. Conversely, in middle aged HP a significantly greater diurnal systolic BP variability was observed, and a significant correlation was found between hourly diastolic BP and hourly HR values, while in elderly HP this correlation was not detectable. The changes in BP and HR profile and variability observed in elderly HP may play a role as risk factors for cardiovascular complications and indicate a dysfunction of autonomic and nonautonomic factors in BP control.

12.
Miner Electrolyte Metab ; 21(1-3): 77-81, 1995.
Article in English | MEDLINE | ID: mdl-7565468

ABSTRACT

Primary hyperparathyroidism (HPTH) is frequently associated with hypertension. To date, the relationship between these two conditions is still not clear. We have studied 34 consecutive patients with primary HPTH due to a parathyroid adenoma. The diagnosis was later surgically confirmed in 32 cases. Ten of thirty-four HPTH patients were hypertensive. Before adenomectomy (PTHX) and 1-2 months after PTHX, we measured the following parameters in all patients: circulating levels of total and ionized Ca, intact immunoreactive parathormone (iPTH) (1-84), plasma renin activity (PRA), aldosterone, and daily total urinary catecholamine excretion. Moreover, 10 hypertensive HPTH patients, 10 normotensive HPTH patients, compared to 10 to 10 sex- and age-matched healthy normotensive subjects, underwent an acute norepinephrine test to assess vascular reactivity to a pressor agent. Before PTHX, no significant difference was observed between normotensive and hypertensive patients in all the above-mentioned variables, except for PRA and plasma aldosterone levels which were higher in hypertensive patients. Furthermore, the pressor response to the norepinephrine test was significantly greater in hypertensive HPTH patients than in the other 2 groups. After PTXH, serum Ca and intact iPHT (1-84) levels were reduced to normal values in all patients, while blood pressure, PRA and plasma aldosterone levels became normal in 8 of 10 hypertensive patients. The pressor response to the norepinephrine test was similar in the 2 groups. These results are consistent with the hypothesis of a direct effect of PTH on renin secretion which could contribute to the pathogenesis of hypertension and to the vessels sensitization to pressor agents.


Subject(s)
Adenoma/physiopathology , Hyperparathyroidism/physiopathology , Hypertension/physiopathology , Parathyroid Neoplasms/physiopathology , Renin-Angiotensin System/physiology , Adenoma/complications , Aged , Case-Control Studies , Female , Humans , Hyperparathyroidism/etiology , Hypertension/complications , Male , Middle Aged , Parathyroid Neoplasms/complications , Reference Values
14.
Minerva Cardioangiol ; 41(9): 387-95, 1993 Sep.
Article in Italian | MEDLINE | ID: mdl-8259235

ABSTRACT

The aim of this study was to evaluate age, plasmatic renin activity (PRA), plasma aldosterone levels and the total quantity of urinary catecholamines (TOT. UR. CAT.) in a large population of out-patients suffering from essential arterial hypertension (EAH). A total of 986 patients were examined (540 women and 426 men aged between 15 and 87 years) suffering form slight or moderate EAH (WHO stage 1-2). After a wash-out period of two weeks, systolic and diastolic arterial pressure was measured together with heart rate in clino- and orthostatism. Blood samples were collected to determine PRA and plasma aldosterone, and lastly a 24-hour urine collection was made to measure the total quantity of catecholamines. It emerged that there was a significant increase in systolic pressure, whereas heart rate and PRA diminished significantly when correlated with age; diastolic pressure was also considerably lower, but did not reach statistical significance. Moreover, it was found that there was a significant positive correlation between PRA and TOT. UR. CAT., whereas no correlation was found between age and plasma aldosterone and between blood pressure and the various endocrine parameters examined. These data confirm the changes in the biological, hemodynamic and endocrine profiles observed in elderly hypertensive patients in comparison to young hypertensive patients, and suggests that age may be an important predictive factor of the activity of both the renin-angiotensin and sympathetic nervous system which appear to be closely connected and gradually attenuated by age.


Subject(s)
Aging , Hypertension/physiopathology , Renin-Angiotensin System/physiology , Sympathetic Nervous System/physiopathology , Adolescent , Adult , Aged , Aged, 80 and over , Aldosterone/blood , Blood Pressure , Catecholamines/urine , Female , Humans , Male , Middle Aged , Renin/blood
15.
Minerva Urol Nefrol ; 45(2): 37-45, 1993 Jun.
Article in Italian | MEDLINE | ID: mdl-8235930

ABSTRACT

The following parameters were studied in a group of patients suffering from essential arterial hypertension complicated by chronic renal insufficiency (CRI), mean age = 64.31 +/- 1.84, with creatinine clearance (CrC) ranging between 30 and 60 ml/min: blood pressure (systolic and diastolic arterial pressure), heart rate, plasmatic renin activity (PRA), plasma levels of aldosterone (ALDO) both in clino- and orthostatism, as well as some metabolic parameters. All parameters were compared with those in a group of age- and sex-matched patients with slight or moderate essential arterial hypertension. Before starting the study all patients completed a wash-out period of one week to annual the effects of other drugs which might interfere with the RAA system. PRA levels were within the norm, whereas plasma levels of ALDO were high both in clino- and orthostatism. ALDO levels were also found to be inversely correlated with those of CrC. From these data it emerges that hyperaldosteronism, as observed in these patients with CRI, is a relatively reliable marker of the extent of CRI and may occur independently of the activation of the RAA system, given that other factors, such as orthostatic stimulation, alterations in the acid-base equilibrium, and the degree of aldosterone hepatic and urinary clearance, contribute to its pathogenesis.


Subject(s)
Aldosterone/physiology , Hyperaldosteronism/etiology , Hypertension/physiopathology , Kidney Failure, Chronic/physiopathology , Adrenocorticotropic Hormone/blood , Aged , Blood Pressure/physiology , Cations/metabolism , Creatinine/blood , Female , Humans , Hydrocortisone/blood , Hypertension/complications , Kidney Failure, Chronic/complications , Male , Middle Aged , Renin-Angiotensin System/physiology , Uric Acid/blood
16.
Kyobu Geka ; 45(12): 1052-6, 1992 Nov.
Article in Japanese | MEDLINE | ID: mdl-1405121

ABSTRACT

The continuous warm blood cardioplegia (CWBC) was used for myocardial protection during aortic cross clamping in two cases of repeat aortic valve operations with good results. Case 1: A 46-year-old man, who underwent an aortic valve replacement because of the rheumatic aortic regurgitation (AR) in 1978, have suffered from orthopnea due to para-prosthetic valvular regurgitation since 1983. He was revealed to have bi-ventricular hypertrophy with myocardial damage on ECG, EF 0.27 on UCG, PCWP 20 mmHg and severe AR on cardiac catheterization. Case 2: A 43-year-old man, who had an aortic valvuloplasty for the non-rheumatic incompetency in 1981, have had a recurrent regurgitation, resulting in left ventricular hypertrophy accompanied by chest pain. Both cases were reoperated upon, having aortic valve replacement with mechanical prosthetic valves through the re-median sternotomy, utilizing CWBC with good recovery. CWBC provides an ideal circumstances for myocardial oxygen utilization during aortic cross clamping and moreover a benefit that needs not the wide dissection of the heart in a redo case because it has no need of topical cooling and ventricular defibrillation following aortic declamping. In conclusion, CWBC is very useful in a repeat aortic valve surgery.


Subject(s)
Aortic Valve Insufficiency/surgery , Heart Arrest, Induced/methods , Heart Valve Prosthesis , Rheumatic Heart Disease/surgery , Adult , Aortic Valve/surgery , Aortic Valve Insufficiency/physiopathology , Blood , Cardioplegic Solutions/therapeutic use , Electrocardiography , Humans , Male , Middle Aged , Reoperation , Rheumatic Heart Disease/physiopathology
17.
Kyobu Geka ; 45(8 Suppl): 677-81, 1992 Jul.
Article in Japanese | MEDLINE | ID: mdl-1405143

ABSTRACT

Comparative studies of the changes in left ventricular (LV) function immediately after aortocoronary bypass graftings (CABG) and early postoperative results were carried out in two groups of patients with severe LV dysfunction (ejection fraction less than 0.4), which consisted of 9 patients received internal mammary artery grafts (IMAG) to at least LAD and 14 with saphenous vein grafts (SVG) only. The utilization of IMAG was limited to the patients with stable preoperative hemodynamics, whereas SVGs were used even in the emergency CABG. Free flow of IMAG measured during operation was 55.7 +/- 25.5 ml/min, which was significantly lower than that (83.5 +/- 27.3) of SVG to LAD. Cardiac index, LV stroke volume index and LV stroke work index immediately after surgery were sufficiently maintained and recovered almost similarly in both groups. Postoperative peak CK-MB (19.7 +/- 10.4 IU/L) in IMAG group was significantly lower than that (23.9 +/- 10.7) in SVG group. There was no significant difference between the two groups in the incidences of postoperative IABP and noradrenaline dependence. There were two hospital deaths in SVG group, whereas no hospital death was experienced in IMAG group. These results indicate that an application of IMAG to LAD in the patients with severe LV dysfunction surely induces satisfactory recovery of hemodynamics immediately after CABG as well as SVG, provided that use of IMAG is limited to the patients with stable preoperative hemodynamics.


Subject(s)
Coronary Artery Bypass , Coronary Disease/surgery , Mammary Arteries/transplantation , Saphenous Vein/transplantation , Ventricular Function, Left , Aged , Coronary Artery Bypass/methods , Coronary Disease/physiopathology , Evaluation Studies as Topic , Humans , Middle Aged , Postoperative Period
18.
Kyobu Geka ; 45(7): 619-22, 1992 Jul.
Article in Japanese | MEDLINE | ID: mdl-1619826

ABSTRACT

A 65-year-old man with chronic type B dissecting aortic aneurysm, complicated by variant from of angina pectoris without any coronary artery obstructed disease on preoperative angiogram was operated upon through left posterolateral thoracotomy under the left heart bypass with Bio-pump system using preoperative Ca antagonists and intraoperative nitroglycerin infusion. Shortly before the end of operation the patient suddenly developed shock status definitely due to coronary artery spasm, associated with ST-elevation in II, III, aVF and bradycardia, then ventricular tachycardia, finally cardiac arrest. The patient was resuscitated by cardiac massage and administration of nifedipine and nitroglycerin. Such attacks repeated five times at ten or twenty minutes intervals. The coronary artery spasm could be successfully suppressed with the additive use of noradrenaline infusion. The patient had no attacks at all postoperatively and was discharged with good success. This case suggests that the prevention of intraoperative coronary artery spasm is essential, but if it occurs, additive use of noradrenaline infusion is effective for the cessation of coronary artery spasm.


Subject(s)
Aortic Aneurysm/surgery , Aortic Dissection/surgery , Coronary Vasospasm/therapy , Intraoperative Complications/therapy , Aged , Blood Vessel Prosthesis , Coronary Vasospasm/etiology , Heart Massage , Humans , Infusions, Intravenous , Male , Nifedipine/administration & dosage , Nitroglycerin/administration & dosage , Norepinephrine/administration & dosage
19.
Minerva Cardioangiol ; 40(5): 169-78, 1992 May.
Article in Italian | MEDLINE | ID: mdl-1528503

ABSTRACT

As is well known, genetic factors play a decisive role in the pathogenesis of essential hypertension (EH), even if they are closely related to environmental factors; it is therefore not possible to quantify with any degree of certainty the role and importance of each in the onset of hypertensive disease. The aim of the present study was to ascertain the presence of hypertensive 1st and 2nd degree ascendant, collaterals and descendants in a group of 355 out-patients with EH (167 males, 188 females; mean age: 52.9 +/- 0.7 years) using an anamnestic analysis. The results of this study confirmed the high prevalence of the hereditary component in EH: familial hypertension was found in 60.6% of the group. From a detailed analysis of the group, with regard to hypertensive ascendant, the hereditary transmission of EH by the mother was significantly higher than that by the father, both the parents and the forefathers, even if it is worth pointing out that the penetration of the genetic character was not always sex-related and was equally distributed between male and female descendents. In addition, it was observed that patients with a familial pattern of hypertension in common with collateral relatives showed significantly enhanced levels of systolic and diastolic pressure in relation to those with another hereditary component. These findings serve to underline the importance of evaluating the effective incidence of EH with regard to an entire family nucleus and not only in individual terms, in order to identify the various means of genetic transmission and possible interactions with environmental factors.


Subject(s)
Hypertension/genetics , Female , Humans , Hypertension/epidemiology , Male , Middle Aged , Sex Factors
20.
Minerva Cardioangiol ; 40(3): 57-64, 1992 Mar.
Article in Italian | MEDLINE | ID: mdl-1630676

ABSTRACT

The aim of the present study was to evaluate a number of parameters in a group of patients with essential hypertension and then compare the results with those in a group of healthy normotensive subjects. One hundred and fifty-six patients with essential hypertension (EH) in the non-complicated form (73 males, 83) females; mean age: 54.8 +/- 0.9 years) were selected and compared with 150 normotensive subjects matched for age and sex. After a 2-week period of wash-out during which patients followed a diet with normal sodium and calorie content, body mass index, systolic and diastolic arterial pressure (AP), mean arterial pressure (MAP), heart rate in clino- and orthostatism were measured and blood was collected to assay glycemia, total cholesterolemia, LDL and HDL cholesterolemia and triglycerides. In the group of patients suffering from EH all the above parameters were found to be significantly higher than in normotensive control subjects. In particular, in the hypertensive population the prevalence of obesity was 21.3%, hyperglycemia 26.9%, hypercholesterolemia 65.1% and smoking 36.4%. When the possible relation between one or more risk factors and AP values was assessed, it was found that in hypertensive patients the presence of hyperglycemia alone or in association with other metabolic disorders led to the highest MAP findings. Moreover, having studied the correlation rate of the various parameters, it was seen that in both the hypertensive and normotensive populations systolic AP measured in clinostatism positively correlated with glycemia, total cholesterolemia, and age, whereas correlations were not found between clinostatic diastolic AP and the above parameters.(ABSTRACT TRUNCATED AT 250 WORDS)


Subject(s)
Hypertension/blood , Analysis of Variance , Blood Glucose/analysis , Cholesterol/blood , Female , Hemodynamics , Humans , Hypertension/epidemiology , Hypertension/physiopathology , Male , Middle Aged , Posture/physiology , Triglycerides/blood , Uric Acid/blood
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