RMI Nuclear Justice Documents

24 axis deviation was normal or to the right in most uidividuals. Lett axis deviation, and onty of modcrate degree, was present ensix individuals, two in the younger unexposed group, three in the older unexposed group. and one in the older ¢x posed vroup. Phe elecerical position of the heart ina “reat majority al both the unexposed and exposed subjects was vertical, fn 22 subjects it was intermediate and in 9 (all unexposed) it was moderalely horontal, Rotation of the heart electrically in the combined groups was clockwise in 25 sub- jects and counterclockwise in 3b, with about equal distribution between the exposed and unexposed urOUps. 4. RSTandT Waves. Abnormal variations were carelully noted tor indications of coronary or myocardial jnsulficiency and; or mvocardial disease or damage. Deviations of the RST segment trom the isoelectric line were found to be mininal; they occurred in only five of the 84 unexposed subjects wid incoaly one of the 38 exposed subjects. PF wave abnormalities were of appreciable degree in only a lew instances in the older group. The abnorinalities were Chiefly io lower To waves and were related to livpertensive discase. T wave changes were most wiarked ina 9l-year-old male ( 280) of the ex- posed group, who had arteriosclerotic heart discause and auricular tibrillauon. Marked RST and i wave changes were noted in an 8l-year-old male ( 246) of the exposed group, who had marked hypertensive and arteriosclerone cardiovascular disease, and had prolonged auriculoventricular conduction time as noted above. \mong the unexposed population there was evideace of myocardial insufficiency according to RST and T wave changes in a 5t-year-old male . 3947), a O4-vear-old female ( #861), a 55-yearold mate (993), a o4-year-old female ( #858), and a o¢-year-old male (884); the last had . hanges sufficient to indicate a healed anterior «cptal cardiac infarct. Other Cardiovascular Observations 1. Peripheral Vascular Findings. Clinical estitiation was made of the degree ofarterial changes athe peripheral vessels (radial, brachaal, and dorsalis pedis). “Che degree of abnormality was graded by Oto #+ sclerosis (sce section on aging studies). Arteriosclerosis was seen chiclhy in subjects © 50 tee car of deen both exposed aiid) timex posed groupes. fowas not marked exceptindgurmdiiduals 70 years of age in the exposed group, and then toa degree compatible with ave Since there were no individuals examined in the unexposed group “70 years of age for comparison, any assumption that the arteriosclerosis was increased in these lour individuals by their exposure to fallout radiation is unwarranted. Ouherwise the presence and the amount of artertosclerosis was fairly well distributed between both populations, as can be seen in ‘Table 14. [t was not observed in a degree premature or advanced for the given age. 2. Arterial Blood Pressures. Blood pressures greater than 140 systolic and 90 diastolic were considered abnormal. On this basis in the exposed group none of the 24 subjects < 50 ofage and seven of the 16 subjects >>50 had hypertension, but mostly of muld degree. There were 17 cases ot hypertenston tn the unexposed group, 2 in those < 50 years of age and 15 in those >50. The diastolic blood pressure showed only infrequent increase above the level of 90 mm; as would be expected, this occurred chietly in the older group. The overall incidence of hypertensionfor the total popuiation examined was 9.2%. 3. Oscillometry Readings. Observations were taken on the legs at the mid-calf. In almost all subjects the pulsation was sufficient to indicate normal blood flaw. Although the readings were lower in the Marshallese than might be expected in Caucasians, it appeared that peripheral vascu‘Table tb Ophthalmological Findings ('¢ Incidence) Exposed Unexposed Ptervgluia Pinguecula Corneal pigment Corneal scars Arcus senilis Phihisis bulbs Nystuwitius Sirabisnus I3.0) 240 12.0 ou 34.0 1.3 1.3 4 21.0 wo 16 j4 20-0 au 7 0? Cratai acts Aphakia Vitreous apa ities Retural arteriosclerosis Chonore tial scars Macular degeneration Drusch Cone nitad ancina lies Lu rt tl Hi QO 1.4 a 2.6 att ee’ 1s ou 123 a7 au Ou oo Argytl-Robertson pupil a) a)