Effect of vomiting due to intestinal obstruction on the serum potassium

Bellet, Samuel; Nadler, Carl S.; Gazes, Peter C.; Lanning, Mary

doi:10.1016/0002-9343(49)90307-1

Cited by 42 publications

(4 citation statements)

References 22 publications

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“…Originallythle Q-T inlterval was thiouight to be prolonlged bvy hvpokaletnia. 32 34 Relationship between TIU values in precordial leacd V3 and the serum pota,ssium concentration.…”

Section: Q-t Intervalmentioning

confidence: 99%

Serum Potassium and the Electrocardiogram in Hypokalemia

1960

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A definite correlation can be established between the electrocardiogram and the serum potassium level at hypokalemic levels. A study was made at the Mayo Clinic of 130 hypokalemic patients with relatively stable clinical states. Variations in Q-T intervals, P-R intervals, atrial rhythm, P waves, T/R values, and T-wave and U-wave contour in hypokalemia were noted as were the relationships between the T-U complex, electrical repolarization phenomena and potassium metabolism. Since modifying factors such as drugs, certain electrolyte disturbances, variations in cardiac rate, conduction defects, and myocardial ischemia were eliminated by careful selection of patients, only the influence of acid-base imbalance, sodium-potassium ratio, and hypertension on the electrocardiogram was studied. Acid-base imbalance and hypertension often simulated or obscured electrocardiographic evidence of hypokalemia. Electrocardiographic criteria of hypokalemia include various combinations of the following signs: (1) T/U value of 1 or less in lead II or V 3 , (2) U-wave amplitudes of greater than 0.5 mm. in lead II or greater than 1 mm. in V 3 , and (3) S-T depression of 0.5 mm. or more in lead II or leads V 1 , V 2 , and V 3 . It must be remembered that a normal electrocardiogram does not exclude hypokalemia and that an electrocardiogram which fulfills the established criteria does not necessarily indicate hypokalemia unless the factors discussed have been eliminated or minimized.

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“…Originallythle Q-T inlterval was thiouight to be prolonlged bvy hvpokaletnia. 32 34 Relationship between TIU values in precordial leacd V3 and the serum pota,ssium concentration.…”

Section: Q-t Intervalmentioning

confidence: 99%

Serum Potassium and the Electrocardiogram in Hypokalemia

1960

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“…In the great majority of cases one or more leads can be found in which the T wave is monophasic (upright or inverted). In figures 2 and 6, lead aVL shows a monophasic upright T, while in figure 3A lead Y6 shows monophasic inverted T waves; these leads were accordingly used to measure the apex of T. In four cases from the literature and in one of our own cases (fig. 4B-C) all of the registered leads showed diphasic T waves.…”

Section: Rs-t Segment and The Q-ot Intervalmentioning

confidence: 96%

The Electrocardiographic Pattern of Hypopotassemia with and without Hypocalcemia

1953

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Detailed analysis of the electrocardiogram in patients with hypopotassemia without hypocalcemia showed that the Q-U interval and its components (Q-oT, Q-aT, Q-T, and Q-aU) have essentially the same duration as in normal subjects for the same heart rate and sex. The typical hypopotassemia pattern is characterized by progressive depression of S-T, lowering and inversion of T and increase of U in left precordial leads. In hypopotassemia with hypocalcemia S-T and Q-T, but not Q-U, are prolonged, causing an increased degree of merging between T and U. Three methods of differentiation between completely merged T and U waves and true T waves of long Q-T duration are given.

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“…It is generally known that changes in motility accompanying various diseased states in human beings may be associated with potassium depletion (38,39). This has also been observed in dogs, and the inhibited motility was overcome to some extent with injections of KC1 (40).…”

Section: Haley Et Al (37) Have Identified a Vasoconstrictor Substancmentioning

confidence: 99%

Some Effects of Ionizing Radiation on the Physiology of the Gastrointestinal Tract: A Review

Conard¹

1956

Radiation Research

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Effect of vomiting due to intestinal obstruction on the serum potassium

Cited by 42 publications

References 22 publications

Serum Potassium and the Electrocardiogram in Hypokalemia

Serum Potassium and the Electrocardiogram in Hypokalemia

The Electrocardiographic Pattern of Hypopotassemia with and without Hypocalcemia

Some Effects of Ionizing Radiation on the Physiology of the Gastrointestinal Tract: A Review

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