126
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Shapiro LM. [Neurilemmoma of the paranasal sinuses and nasal cavity]. Vestn Otorinolaringol 1982:72-3. [PMID: 7101621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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127
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Abstract
In order to study left ventricular diastolic function in diabetes mellitus, simultaneous echo- and phonocardiograms were recorded in 142 diabetics (free from heart disease), 20 normal subjects, and 16 patients with coronary artery disease. The resultant traces were digitised, and left ventricular relaxation and the rate and duration of cavity dimension increase and wall thinning were determined. Diastolic variables of left ventricular function were normal in 12 young diabetics with no complications. Significantly delayed mitral valve opening relative to minimum dimension and aortic valve closure was found in all other groups of diabetics. Forty-four diabetics with severe microvascular complications had significantly reduced peak rate and prolonged duration of wall thinning and dimension increase. The abnormalities were unlike those found in subjects with coronary artery disease. The extent of microvascular complications was significantly correlated to most variables of diastolic function. This relation was maintained in 31 diabetics with significant cavity dimension increase during isovolumic relaxation (incoordinate relaxation). In 42 juvenile onset patients there was good correlation between the duration of diabetes and most variables of diastolic function. These studies show that the primary cardiac abnormality in diabetic micro-angiography is a prolonged duration and reduced rate of posterior wall thinning with impaired left ventricular dimension increase, reflecting abnormal myocardial properties.
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128
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Shapiro LM. [Facial neurinoma]. Vestn Otorinolaringol 1982:71-2. [PMID: 7090136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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129
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Shapiro LM, Trethowan N, Singh SP. Normotensive cardiomyopathy and malignant hypertension in phaeochromocytoma. Postgrad Med J 1982; 58:110-1. [PMID: 7100023 PMCID: PMC2426317 DOI: 10.1136/pgmj.58.676.110] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A patient with two different presentations of phaeochromocytoma is described. She initially presented with normal blood pressure and heart failure following a prolonged feverish prodrome. A provisional diagnosis of myocarditis or early congestive cardiomyopathy was made and she improved with digoxin and diuretics. Eighteen months later, after a period of normotension free from heart failure, she developed malignant hypertension with recurrence of heart failure. A phaeochromocytoma was surgically removed, with return to normal of blood pressure and cardiac status. It would seem that the initial presentation of the phaeochromocytoma was a catecholamine-induced myocarditis without hypertension and this resolved with the subsequent development of malignant hypertension. The possible mechanisms responsible for this are discussed and it is concluded that phaeochromocytoma should be considered in patients who have heart failure and persistent features of myocarditis.
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130
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131
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Shapiro LM, Mackinnon J, Beevers DG. Echocardiographic features of malignant hypertension. BRITISH HEART JOURNAL 1981; 46:374-9. [PMID: 6457615 PMCID: PMC482663 DOI: 10.1136/hrt.46.4.374] [Citation(s) in RCA: 30] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Computerised apex- and echocardiography was used to study left ventricular dimensions and function in 13 patients with untreated malignant hypertension and eight with severe benign hypertension. All patients had normal left ventricular cavity dimensions. Five benign hypertensives and malignant hypertensives with a previous history of hypertension had significant thickening of the septum and posterior wall. In eight malignant hypertensives without a previous history wall thicknesses were normal. The absence of ventricular hypertrophy in some cases of malignant hypertension suggests that it is sometimes of rapid onset and not preceded by a non-malignant phase. although fractional shortening and peak Vcf were normal in all the hypertensives, diastolic left ventricular function was frequently abnormal with delayed mitral valve opening, reduced peak rate of filling, and outward endocardial motion during isovolumic relaxation. Malignant hypertensives showed a cavity shape change during isovolumic contraction, and in those without a previous history the aortic second heart sound occurred earlier. The abnormalities of function are probably the result of a combination of factors including pressure overload, abnormal myocardial properties, and myocardial ischaemia, either regional or generalized and secondary to arteriolitis.
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132
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Shapiro LM, Howat AP, Calter MM. Left ventricular function in diabetes mellitus. I: Methodology, and prevalence and spectrum of abnormalities. Heart 1981; 45:122-8. [PMID: 7006655 PMCID: PMC482499 DOI: 10.1136/hrt.45.2.122] [Citation(s) in RCA: 97] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Frequent abnormalities of left ventricular function were detected in 212 established diabetic patients using non-invasive techniques. Diabetics without angina or heart failure (n = 185) were significantly different from normal subjects (n = 50) in beat-to-beat variation, ratio of pre-ejection period to left ventricular ejection time, pre-ejection period index, isovolumic relaxation time, and interval from minimal dimension to mitral valve opening. Diabetics with angina (n = 18) were similar to control subjects with angina (n = 25); they showed a significant dimension change during the isovolumic period as compared with other diabetics and normals. Sixteen diabetics without angina also showed outward motion during the isovolumic period (incoordinate relaxation) and 13 had abnormal systolic time intervals. Four diabetics suffered a myocardial infarction during the study period; all had previously shown incoordination. Comparison of diabetics with a diastolic blood pressure below 100 mmHg and between 100 and 125 mmHg showed that the latter had a thicker posterior wall; the enlarged systolic dimension and reduced fractional shortening were the result of the inclusion of five of the 11 diabetic subjects with heart failure in the hypertensive group. Insulin-dependent diabetics tend to have more pronounced abnormalities of left ventricular function than those not requiring insulin. Patients selected from a diabetic clinic frequently have impaired left ventricular function, and ventricular hypertrophy, when present, in primarily caused by hypertension.
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133
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Shapiro LM, Leatherdale BA, Mackinnon J, Fletcher RF. Left ventricular function in diabetes mellitus. II: Relation between clinical features and left ventricular function. Heart 1981; 45:129-32. [PMID: 7006656 PMCID: PMC482500 DOI: 10.1136/hrt.45.2.129] [Citation(s) in RCA: 99] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
We have shown a close relation between clinical microvascular complications and abnormalities of left ventricular function in 185 established diabetics without clinical heart disease. In 50 insulin-dependent diabetics who presented at under 20 years of age there was a correlation between the duration of diabetes and the isovolumic relaxation time, minimal dimension to mitral valve opening, and ratio of pre-ejection period to left ventricular ejection time. Diabetics with mild microvascular complications were similar to diabetics with no complications except for minor prolongation of the diastolic time intervals. Those with severe complications were significantly different from diabetes with milder complications and normal controls in all variables of left ventricular function. A close relation between left ventricular function and the microvascular complications index (code 0 when no complications to code 7 when all present and severe) was found for the following variables: isovolumic relaxation time, the interval from minimal dimension to mitral valve opening, ratio of pre-ejection period to left ventricular ejection time, and pre-ejection period index. It is concluded that in diabetes abnormalities of left ventricular function are related to duration of disease and complications; and that a diabetic specific heart muscle disorder occurs frequently in patients with severe microvascular complications.
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134
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Shapiro LM, Bowes GM, Vaughan PF. Effect of melanostatin and thyroliberin on the biosynthesis and release of dopamine by rat brain striatal P2 fractions. Life Sci 1980; 27:2099-108. [PMID: 6111009 DOI: 10.1016/0024-3205(80)90491-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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135
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Radugin KB, Shakhov VI, Shapiro LM. [Spring-action stapes prosthesis for stapedioplasty]. Vestn Otorinolaringol 1980:79-81. [PMID: 7414836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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136
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Shapiro LM, Leatherdale BA, Coyne ME, Fletcher RF, Mackinnon J. Prospective study of heart disease in untreated maturity onset diabetics. BRITISH HEART JOURNAL 1980; 44:342-8. [PMID: 7426192 PMCID: PMC482408 DOI: 10.1136/hrt.44.3.342] [Citation(s) in RCA: 60] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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137
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Wright N, Shapiro LM, Nicholson J. Treatment of renal failure in a non-specialist unit. BRITISH MEDICAL JOURNAL 1980; 281:117-8. [PMID: 7427208 PMCID: PMC1713623 DOI: 10.1136/bmj.281.6233.117] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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138
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Shapiro LM, Mackinnon J. The resolution of hypertrophic pulmonary osteoarthropathy following treatment of subacute infective endocarditis. Postgrad Med J 1980; 56:513-5. [PMID: 7443609 PMCID: PMC2425817 DOI: 10.1136/pgmj.56.657.513] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
A patient with a corrected coarctation of the aorta subsequently developed infective endocarditis on a congenital bicuspid aortic valve. Resolution of the radiographic bone changes of hypertrophic pulmonary osteoarthropathy was demonstrated following treatment of the infection.
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139
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Shapiro LM, Burke A, Lee NH. Heterogeneity of chondrocyte mitochondria. A study of the Ca2+ concentration and density banding characteristics of normal and rachitic cartilage. BIOCHIMICA ET BIOPHYSICA ACTA 1976; 451:583-91. [PMID: 999870 DOI: 10.1016/0304-4165(76)90153-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Previous morphological studies of the mineralizing epiphysis suggested that some mitochondria were concerned with Ca2+ accumulation while others were associated with cellular energetics and metabolism. To determine if there was mitochondrial heterogeneity in chondrocytes of the epiphyseal growth plate, mitochondria were isolated from four different regions of the plate and subjected to continuous sucrose gradient centrifugation. Centrifugation of the organelles in a narrow density sucrose gradient (1.5--2.0 M) in the presence of inhibitors of Ca2+ transport (ruthenium red and 5,5'-dithiobis-(2-nitrobenzoic acid)) revealed that considerable heterogeneity existed. In the least calcified zone 20% of the mitochondria formed a low density band of low Ca2+ concentration (309 nmol/mg protein). Organelles isolated from more calcified tissue zones showed a concomitant increase in Ca2+ concentration (up to 5700 nmol/mg protein) as well as an increase in the total percentage of mitochondria sedimenting in 2.0 M sucrose. The banding patterns of mitochondria isolated from rachitic and hypertrophic cartilage were similar. In addition, similarities were also noted in the Ca2+ concentration and the cytochrome oxidase activities of mitochondria of these tissues. During recovery from the rachitic condition, there was a change in the density centrifugation characteristics of this tissue and a substantial increase was noted in the proportion of mitochondria sedimenting in 2.0 M sucrose. The Ca2+ concentration of mitochondria of this rapidly calcifying tissue suggested that the critical Ca2+ concentration necessary for initiation of the calcification mechanism was 4 mumol/mg protein.
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140
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Radugin KB, Shapiro LM. [Hearing in patients with adhesive otitis media 5 to 11 years after hearing-improving operations]. Vestn Otorinolaringol 1976:29-33. [PMID: 960431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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141
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Shapiro LM. [Melanoma of the external auditory meatus]. ZHURNAL USHNYKH, NOSOVYKH I GORLOVYKH BOLEZNEI = THE JOURNAL OF OTOLOGY, RHINOLOGY, AND LARYNGOLOGIE [SIC] 1976:113-4. [PMID: 1024412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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142
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143
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Radugin KB, Shapiro LM. [Clinical aspects and treatment of exostoses of the external auditory canal]. ZHURNAL USHNYKH, NOSOVYKH I GORLOVYKH BOLEZNEI = THE JOURNAL OF OTOLOGY, RHINOLOGY, AND LARYNGOLOGIE [SIC] 1975:86-7. [PMID: 1231394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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144
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Shapiro LM. [Multiple primary cancer with localization in the maxillary sinus and uterus]. ZHURNAL USHNYKH, NOSOVYKH I GORLOVYKH BOLEZNEI = THE JOURNAL OF OTOLOGY, RHINOLOGY, AND LARYNGOLOGIE [SIC] 1974; 0:105-6. [PMID: 4424741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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145
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Nikitina VF, Shapiro LM. [Neurogenic sarcoma of the middle ear]. Vestn Otorinolaringol 1974; 0:72-3. [PMID: 4428589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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146
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Kunel'skaia VI, Shapiro LM. [Actinomycosis of the ear]. ZHURNAL USHNYKH, NOSOVYKH I GORLOVYKH BOLEZNEI = THE JOURNAL OF OTOLOGY, RHINOLOGY, AND LARYNGOLOGIE [SIC] 1974; 0:108-9. [PMID: 4408463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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147
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Shapiro LM, Kulagin IN. [Possibilities in using cadaveric tympanic membrane for myringoplasty]. Vestn Otorinolaringol 1973; 35:65-8. [PMID: 4767980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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148
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Shapiro LM, Chupiĭ LV. [Suppurating neurofibroma of the left parotid region in Recklinghausen's disease]. ZHURNAL USHNYKH, NOSOVYKH I GORLOVYKH BOLEZNEI = THE JOURNAL OF OTOLOGY, RHINOLOGY, AND LARYNGOLOGIE [SIC] 1973; 33:104-6. [PMID: 4207433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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149
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Shapiro LM. [Odontogenic suppurative sinusitis complicated by cavernous sinus thrombosis]. Vestn Otorinolaringol 1973; 34:96-7. [PMID: 4713910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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150
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Riabina VP, Shapiro LM. [Cylindroma of the ear]. Vestn Otorinolaringol 1973; 35:93-4. [PMID: 4362542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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