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Mashup Score: 9Supine-Related Pseudoanemia in Hospitalized Patients - PubMed - 3 year(s) ago
A patient’s supine posture redistributes plasma into the vascular space, leading to dilution of blood constituents. The extent to which posture may influence identification of hospital-acquired anemia is unknown. Patients in this quasi-experimental study had blood obtained for hemoglobin measurement …
Source: PubMedCategories: Hem/Oncs, Latest HeadlinesTweet
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Mashup Score: 11
The chronology of hemoconcentration and hemodilution associated with changes in posture, and the reliability of venous hematocrit (Hct), hemoglobin (Hb), and plasma proteins (PP) as indicators in evaluating changes in plasma volume were determined in seven male subjects. Red cell mass was also measu …
Source: PubMedCategories: Hem/Oncs, Latest HeadlinesTweet-
4/4 - The Explanation 💡Standing leads to ↑ hydrostatic pressure and movement of fluid into the interstitial space. One study reported efflux of ~600ml of fluid upon standing. This correlated with a 16% reduction in plasma volume. And increased Hgb! https://t.co/ycggB8g9j4 https://t.co/YzUyagaxzd
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Mashup Score: 33Electrocardiographic repolarization during stress from awakening on alarm call - PubMed - 3 year(s) ago
Derangements in the T wave and ST segment as signs of sympathetic overactivity are common during arousal and are associated with marked inertia in QT interval adaptation. These modifications of ventricular repolarization may mediate the generation of stress-provoked arrhythmias in electrically unsta …
Source: PubMedCategories: Hem/Oncs, Latest HeadlinesTweet-
2/4 - The Answer 📟 Being paged! 📟 This ECG is from a 31-year-old healthy physician just after being aroused by an "alarm call" while on-call in the hospital. The associated study found that 63% of physicians experienced T-wave inversion when called! https://t.co/re7tDsIwZB https://t.co/6fJq83RnrP
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Mashup Score: 7
Journals & BooksRegisterSign inView PDFJournal of the American College of CardiologyVolume 71, Issue 11, Supplement, 10–12 March 2018, Page A2551Author links open overlay panelTinaVargheseDavidHirshhttps://doi.org/10.1016/S0735-1097(18)33092-4Get rights and contentUnder an Elsevier user licenseOpen archiveCited by (0)Poster ContributionsPoster Hall, Hall A/BMonday, March 12, 2018, 9:45 a.m.-10:30…
Source: www.sciencedirect.comCategories: Hem/Oncs, Latest HeadlinesTweet-
2/4 - The Answer 🧠B1 (thiamine) deficiency!🧠 The ECG is from a 49-year-old who presented with Wernicke’s encephalopathy secondary to B1 deficiency. An MRI showed abnormal signal in the thalamus, mammillary bodies, and periventricular gray matter. https://t.co/sWFcqFO0K2 https://t.co/466bZM6ZKa
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Mashup Score: 0Electroconvulsive therapy-induced ECG changes simulating a myocardial infarction - PubMed - 3 year(s) ago
Electroconvulsive therapy (ECT) can produce various cardiac arrhythmias; however, to our knowledge, no other alterations have been described in the ECG. A 75-year-old woman was admitted to the Methodist Hospital in Brooklyn, NY, because of depression. She had had no cardiac symptoms and had been in …
Source: PubMedCategories: Hem/Oncs, Latest HeadlinesTweet-
2/3 - The Answer ⚡ECT!⚡ This ECG was from a 75-year-old patient undergoing ECT for the treatment of depression. Subsequent testing found now evidence suggesting an acute coronary syndrome. https://t.co/kXuD998vQd https://t.co/XKNpyJeMys
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Mashup Score: 0Cardiovascular disturbances and their management in modified electrotherapy for psychiatric illness - PubMed - 3 year(s) ago
Cardiovascular disturbances and their management in modified electrotherapy for psychiatric illness
Source: PubMedCategories: Hem/Oncs, Latest HeadlinesTweet-
3/3 - The Explanation The T-wave inversions seen with ECT are felt to reflect increased sympathetic tone, potentially from hypothalamic stimulation. Their association with ECT was first reported in 1955. https://t.co/geO6ZNjRjb https://t.co/smikMLFoWX
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Mashup Score: 3Electrocardiographic observations in patients with cerebrovascular accidents; report of 12 cases - PubMed - 3 year(s) ago
Electrocardiographic observations in patients with cerebrovascular accidents; report of 12 cases
Source: PubMedCategories: Hem/Oncs, Latest HeadlinesTweet-
2/ Cerebral T-waves have been observed for decades. 🔑Though they have been seen in multiple forms of stroke, subarachnoid hemorrhage (SAH) is most closely linked with their appearance. https://t.co/3xA30D3w5W https://t.co/I2mQreI4fB
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Mashup Score: 1Electrocardiographic changes simulating myocardial ischemia and infarction associated with spontaneous intracranial hemorrhage - PubMed - 3 year(s) ago
Electrocardiographic changes simulating myocardial ischemia and infarction associated with spontaneous intracranial hemorrhage
Source: PubMedCategories: Hem/Oncs, Latest HeadlinesTweet-
3/ In 1960, Cropp reported a case of T-wave inversions (TWI) secondary to SAH. Surgery was delayed for fear of myocardial infarction (MI). An autopsy showed no evidence of MI or chronic coronary artery disease. 💡Something else was causing the TWI. https://t.co/iCRKioa9wn https://t.co/84Hzna76l4
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Mashup Score: 3Cardiac manifestations after subarachnoid hemorrhage: a systematic review of the literature - PubMed - 3 year(s) ago
Cardiac alterations associated with subarachnoid hemorrhage (SAH) have been recognized and frequently reported. We systematically reviewed the literature on MEDLINE using the key words: SAH + (heart, cardiac, electrocardiogram, cardiac enzymes, troponin, myoglobin, echocardiography, scintigraphy, Ho …
Source: PubMedCategories: Hem/Oncs, Latest HeadlinesTweet-
4/ Many theories have been proposed to explain cerebral T-waves. 🔑An increase in sympathetic tone, either systemically or localized to the heart, are part of most theories. https://t.co/eZPMGkMqdI
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Mashup Score: 4Effect of elevated plasma norepinephrine on electrocardiographic changes in subarachnoid hemorrhage - PubMed - 3 year(s) ago
We compared electrocardiographic abnormalities and plasma norepinephrine concentrations in 40 patients with subarachnoid hemorrhage within the first 24 hours, at 72 hours, and after 1 week. In 20 patients with high plasma norepinephrine concentrations within the first 24 hours, sinus tachycardia (p …
Source: PubMedCategories: Hem/Oncs, Latest HeadlinesTweet-
5/ A 1991 study found that in patients with subarachnoid hemorrhage, high norepinephrine levels were associated with inverted T-waves. https://t.co/Ju20gpC86K https://t.co/yeRjKVzSw6
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3/4 - The Evidence A 2021 study looked at Hgb after being recumbent for at least 6 hours and again after sitting upright for at least 1 hour. They found... ☞ Median increase in Hgb: 0.60 g/dL ☞ 29% increased ≥1.0 g/dL https://t.co/54VsYC49jS https://t.co/v1vSmI9WNe