Ion Exchange of Quaternary Salts.

Berggren, A.; Björling, C. O.; Kuylenstierna, Ulf; Magnéli, Arne; Pestmalis, Herbert; Åsbrink, Stig

doi:10.3891/acta.chem.scand.11-0179

Cited by 5 publications

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“…The perfusion through these non-ventilated small areas may probably be reduced more or less (4, 112), but the remaining perfusion may be equivalent to the shunt. The size of this shunt was estimated as the venous admixture breathing 100 per cent oxygen (20).…”

Section: Discussionmentioning

confidence: 99%

“…Venous admixture. Unsaturation of arterial blood caused by venous admixture due to shunt was determined according to Berggren (20), the subject breathing 100 % oxygen for 20 minutes in the supine position (15). Hereby other causes of unsaturation of arterial blood, such as uneven ventilation/perfusion and/or disturbances of ' 0 2 diffusion, are eliminated (12, 15).…”

Section: (C)mentioning

confidence: 99%

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Studies on the cardio‐pulmonary function in the course following the acute stage of “atypical” pneumonia

1962

Journal of Internal Medicine

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Summary 12 subjects, constituting a “non‐pulmonary” group, and 16 subjects, 9 males and 7 females, constituting an “atypical” pneumonia group, were investigated at various time in the course following the acute phase of the actual infection with series of cardiopulmonary function tests. The “non‐pulmonary” group consisted of convalescents after infectious diseases with no involvement of the lungs. In the “atypical” pneumonia group, most cases had suffered from “primary atypical pneumonia” with lesions in the lungs probably of interstitial pneumonitis type. The x‐ray picture was normalized or almost normalized at the time for investigation. The rate of work at a pulse rate of 170/min. (W170) was in the “non‐pulmonary” group normal or almost normal. W170 in the “atypical” pneumonia group was in relation to heart volume somewhat low. Slight to moderate orthostatic reactions as well at rest in standing as during work in sitting were a little more frequent in the “atypical” pneumonia group. The pulmonary function was in the “non‐pulmonary” group as a whole in close agreement with earlier normal materials. The static lung volumes in the “atypical” pneumonia group were slightly reduced and certain distrurbances in the mechanics of breathing could not be excluded. Alveolar ventilation was normal in most cases. The diffusion capacity of the lungs was reduced at rest and during exercise as well in absolute terms as in relation to BSA and mid‐capacity. Anatomical shunts ranging from 6 to 15 % of cardiac output were found. The lung function was not impaired to such a degree as to be a limiting factor of the oxygen transport.

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Section: Discussionmentioning

confidence: 99%

Section: (C)mentioning

confidence: 99%

Studies on the cardio‐pulmonary function in the course following the acute stage of “atypical” pneumonia

1962

Journal of Internal Medicine

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“…The differences in VC and T C found between the present group and the above mentioned "aon-pulmonary" group were statistically significant values at the first investigation were 115. 7 and 92. The observed increase is, however, statistically insignificant.…”

Section: Pulmonary Functionmentioning

confidence: 99%

A follow‐up study on the cardio‐pulmonary function in the course following “atypical” pneumonia

1962

Journal of Internal Medicine

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Summary 9 subjects, 3 males and 6 females, were investigated in the course following “atypical” penumonia with a series of cardio‐pulmonary function tests at two occasions with an average time interval of 23 weeks. The first investigation was in eight cases carried out a few days or weeks after end of the acute infectious phase when the x‐ray picture was almost or entirely normalized and in one cases after 12 months. The rate of work performed at a pulse rate of 170 beats/min. (W170) was found to have increased considerably in relation to heart volume. The heart volume was not significantly different from, although lower than a normal material at the first investigation and in fairly close agreement with this normal material at the second one. Moderate orthostatic pulse reactions were found in some cases at the first investigation, but were almost absent six months later. The static lung volumes were found to be somewhat low at the first, but within normal limits at the second investigation. Alveolar ventilation was within normal limits at both investigations. Nitrogen wash‐out index was likewise found to be within normal limits at both investigations, although somewhat higher at the first test occasion in some cases. The diffusion capacity for carbon monoxide was shown to be somewhat low in relation to predicted normal value at both investigations at rest and during exercise as well in absolute terms as in relation to midcapacity, indicating that the membrane diffusion capacity was more or less affected. The anatomical shunts, which were higher than normal in all cases at the first investigation, were found to have decreased considerably in all cases but two. Oxygen transport during exercise was at the first investigation in some cases mainly limited by circulatory factors alone or in combination with diffusion disturbances and/or venous admixture due to anatomical shunt. At the second investigation about six months later these factors were hardly of a magnitude as to have a limiting effect on oxygen transport during exercise although, in most cases, still not normalized.

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Use of Ion Exchangers in Organic Analysis

1966

Analytical Applications of Ion Exchangers

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Ion Exchange of Quaternary Salts.

Cited by 5 publications

References 0 publications

Studies on the cardio‐pulmonary function in the course following the acute stage of “atypical” pneumonia

Studies on the cardio‐pulmonary function in the course following the acute stage of “atypical” pneumonia

A follow‐up study on the cardio‐pulmonary function in the course following “atypical” pneumonia

Use of Ion Exchangers in Organic Analysis

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