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Medical issues in sport diving include illnesses that are caused by diving, and medical disorders that compromise safety. Cerebral air embolism and decompression sickness of the brain and spinal cord can result from diving. Sport divers may manifest a spectrum of symptoms from air embolism, which can range from unconsciousness to minimal symptoms, which include fatigue, personality change, poor concentration, irritability, and changes in vision. The physician must search for these minor symptoms in divers who are suspected of pulmonary barotrauma. Medical disorders of concern in diving include diseases of the lungs, the heart, the brain, and the endocrine system, particularly diabetes. Other factors involved in diving safety are exercise capacity and training. Clinical practice standards usually prohibit diving by individuals who have a seizure disorder that requires continuous medication. In the United States, we will not approve diving for individuals who have insulin-dependent diabetes or severe asthma. Some divers can return to diving after myocardial infarction or bypass surgery if they demonstrate good exercise tolerance and no ischemia on a graded exercise test, which simulates the physical activity needed for safe diving.
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PMID:Medical aspects of sport diving. 914 89

We describe a patient with noninsulin-dependent diabetes mellitus presenting with an amnestic disorder, personality change, and autonomic seizure. Magnetic resonance images of the brain showed T2-high signal lesion in the hippocampi bilaterally and nonspecific white matter disease, while single photon emission computed tomography revealed a diffuse reduction of cerebral blood flow. Sensory and auditory evoked potentials revealed delayed impulse conduction velocities in the central nervous system. Degenerative changes caused by a microvascular angiopathy related to noninsulin-dependent diabetes mellitus may underlie the central nervous system manifestations in our patient.
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PMID:Noninsulin-dependent diabetes mellitus-related encephalopathy presenting with amnesia, personality change, and autonomic seizure. 931 7

1. We examined 156 patients 33 years after CO poisoning occurred at the Miike Mikawa Mine, Fukuoka, Japan. The subjects were classified according to age as follows: between 55 and 59 years (n = 14), 60 and 69 years (n = 62), 70 and 79 years (n = 60), and 80 and 87 years (n = 18). The mean age was 69.2 years old. Concerning the duration of coma that occurred soon after the accident, 64 remained comatose from 0 to 6 hours, 46 from 6 to 12 hours and 46 from 12 to 48 hours. 2. Subjective symptoms were observed in 96.8% of the patients. Among them, forgetfulness was noted in 89.7%, followed by irritability in 66.7%, headache in 59.6%, insomnia in 55.8%, limb pain in 46.8%, dull head feeling in 42.9% and dizziness in 36.5%. 3. Intellectual disturbances were observed in 68.6% of the patients, including impression disturbance in 58.3%, memory disturbance in 51.9%, calculation disturbance in 63.5%, thinking disturbance in 61.5% and disorientation in 14.1%. 4. Apathy and disorder of volition and interest which were found in 72.4% were included in personality change because all symptoms persisted for many years. Personality change was classified as follows: weakness of emotion and will (hypobulia) in 54.4%, infantilism in 35.2%, hyperactive, talkactive and lack of inhibition in 18.5%, lack of self-possession and unstable temper in 9.6%, depression in 15.3%, neurosis in 7.6% and schizophrenic state in 2.5%. Among these symptoms of personality change, weakness of emotion and will and infantilism were conspicuous among the patients who remained in a coma for more than 6 hours soon after the accident but showed no relationship with age. 5. Neurological symptoms that were found in 48.7% of the patients were classified as sensory disturbance in 25.6%, peripheral nerve symptoms in 16.0%, pyramidal symptoms in 14.1%, ataxia and cranial nerve symptoms in 7.1%, paroxysmal symptoms in 6.4% and focal symptoms in 4.5%, extrapyramidal symptoms in 21.8% (Parkinsonism in 4.5%, tremor in 10.9% and muscle rigidity in 16.0%) and vegetative symptoms in 37.2%. 6. At the time of investigation, 5 CO poisoning patients were classified as serious cases (3.2%), 20 as comparatively serious (12.8%) medium-degree cases, 28 as comparatively mild (17.9%) medium-degree cases, 37 as comparatively serious (23.7%) mild cases, 42 as comparatively mild (26.9%) mild cases, 24 (15.4%) as having symptoms which were not problematic, and 24 (15.4%) as having symptoms that markedly worsened due to complication. 7. A total of 138 (88.4%) cases had complications were classified as follows: 78 cases (50.0%) of hypertension, 62 cases (39.7%) of cerebral infarction, 24 cases (15.4%) of cardiac disturbance, 21 cases (13.5%) of diabetes mellitus, 14 cases (9.0%) of hepatic disturbance and six cases of silicosis (3.8%). 8. Cranial MRI was carried out for 129 cases (82.7%). Of the abnormal findings identified, cerebral atrophy accounted for 72.0% (93 cases), including moderate and severe cases in 47.2% (61 cases), pallidum lesion for 37.9% (49 cases), lacunar infarction (including cerebral infarction) for 52.7% (68 cases), and hippocampal atrophy for 18.6% (24 cases). Many cases of cerebral atrophy and hippocampal atrophy were observed in patients who remained in the initial coma for more than 12 hours and were 80 years of age or old. The cases of pallidum lesion were observed in patients who remained in the initial coma for more than 6 hours, and no relationship with age was found. The other findings, cerebral atrophy and lacunar infarction showed a slight relationship with age. 9. Among the moderate and serious cases of intellectual disturbance, cerebral atrophy constituted to 62.5%, lacunar infarction 68.7% and pallidum lesion 50.0%. Among the moderate and serious cases of personality change, cerebral atrophy constituted 78.5%, lacunar infarction 35.0% and pallidum lesion 50.0%. Moreover, among extrapyramidal symptoms, pallidum lesion constituted 58.6%, cerebral atrophy 55.1% and lacun
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PMID:[Long-term follow-up study on sequelae of carbon monoxide poisoning; serial investigation 33 years after poisoning]. 1050 96

An implicit question in every pre-hospital cardiopulmonary resuscitation (CPR) scenario is 'what will be the quality of life if a save is achieved?' This issue has implications for doctrine, policy, training and post-CPR counselling of both resuscitator and victim. Post-salvage neurological syndromes in surviving victims include amnesia, personality change, cognitive loss, depression, Parkinsonian syndromes, decorticate and decerebrate states and permanent brain damage with vegetative existence. Children who are salvaged by CPR rarely have pre-existing co-morbidities; but 75% of adults have pre-existing cardiac disease, cancer or diabetes. Such, of course, continue after a successful resuscitation. In the case of children who are resuscitated from acute hypoxic insults, the quality of life is generally good and, in the specific instance of survivors from near-drowning, some 95% will lead lives relatively unmodified. Although successful CPR resuscitation rates remain low in adults, the quality of life of those who leave hospital remains generally high. CPR involves two feature subjects, the resuscitator and the victim. Just as for the victim, so too the resuscitator's life is modified by CPR and its aftermath, whether immediate salvage has been achieved or not. This review addresses these issues, as a successful CPR (dramatic as it is) is not a conclusion but the beginning of a new phase of life for both resuscitator and victim.
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PMID:Successful cardiopulmonary resuscitation outcome reviews. 1111 62

Five female patients developed chorea concurrent with, or shortly after a hyperglycemic episode (admission glucose values 500-1,000 mg/dL). In four of these five patients, there was no prior history of diabetes mellitus. The chorea continued despite correction of blood glucose and persisted to the time of last follow-up, 6 months to 5 years later. The chorea developed subacutely over 2 days to 1 month and was generalized in one, unilateral in three, and involved right > left lower extremity in the other; the severity initially reached ballistic proportions in two. Associated clinical features were nil in four of these patients, but cognitive impairment and personality change occurred in one. The histories and laboratory studies identified no predisposing factors other than the hyperglycemia. The chorea was sufficiently troublesome to require administration of neuroleptic medication in all five cases. Four of the five cases had high signal intensity within basal ganglia on T1-weighted magnetic resonance (MR) imaging, as has previously been described; however, this was not seen in one case (who had the most severe clinical condition). Most previously described cases have involved a reversible clinical syndrome, in contrast to our patients. The pathogenic mechanisms remain uncertain.
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PMID:Persistent chorea triggered by hyperglycemic crisis in diabetics. 1174 19

Health promotion must be person-centered, not organ- or disease-centered, in order to be effective because physical, mental, social, and spiritual aspects of human functioning are inextricably intertwined. Chronic medical disorders, such as heart disease, chronic obstructive pulmonary disease, diabetes, cancer, asthma, and arthritis, are strongly associated with immature personality, emotional instability, and social dysfunction. All indicators of physical, mental, and social well-being are strongly related to the level of maturity and integration of personality, so personality is a useful focus for the promotion of well-being. Assessment of personality also facilitates the awareness of the clinician and the patient about the patient's strengths, weaknesses, and goals, thereby contributing to an effective therapeutic alliance. Health, well-being, resilience, and recovery of function all involve increasing levels of the character traits of Self-directedness, Cooperativeness, and Self-transcendence. Person-centered programs that enhance self-regulation of functioning to achieve personally valued goals improve compliance with medical treatment and quality of life in people with chronic disease. Effective therapeutic approaches to health promotion activate a complex adaptive system of feedback interactions among functioning, plasticity, and virtuous ways of thinking and acting. The probability of personality change can be predicted by high levels of Self-transcendence, which give rise to an outlook of unity and connectedness, particularly when combined with the temperament traits of high Novelty Seeking and high Persistence. In summary, person-centered psychobiological treatments that facilitate the development of well-being and personality development are crucial in the prevention, treatment, and rehabilitation of chronic medical diseases.
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PMID:Person-centered Health Promotion in Chronic Disease. 2633 69