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Elgassim M, Abdelrahman A, Saied ASS, Ahmed AT, Osman M, Hussain M, AlJaufi I, Salem W. Salbutamol-Induced QT Interval Prolongation in a Two-Year-Old Patient. Cureus 2022; 14:e21904. [PMID: 35273858 PMCID: PMC8901152 DOI: 10.7759/cureus.21904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/04/2022] [Indexed: 11/30/2022] Open
Abstract
Salbutamol-induced QT interval prolongation is a relatively rare adverse effect of beta2-agonists. We report a case of a two-year-old female patient with no known past medical history, brought by her parents to the ED 30 minutes after ingesting a total dose of 97 mg of salbutamol solution. ECG was done for the patient when she arrived and showed sinus tachycardia with prolonged QTc (509 ms) and normal QRS complex. The patient was admitted to the Pediatric Intensive Care Unit (PICU) with persistent tachycardia and tachypnea in the initial reassessment. ECG was repeated with normal QT interval after IV Mg sulfate. The patient was observed in PICU for 12 hours with serial ECG and venous blood gas (VBG). IV potassium chloride (KCL) infusion started, and serial VBG showed normal potassium and lactate. The patient was doing well in the next six hours, with normal serial ECG, labs, and vital signs. In conclusion, salbutamol-induced QT prolongation has infrequently been reported in the literature. Although inhaled salbutamol is commonly used in clinical practice, physicians have limited experience with the severe features of its toxicity. Salbutamol is known to cause minimal side effects, which may be under-recognized and progress to serious manifestations such as hypokalemia, QT prolongation, and sudden cardiac death.
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López-Baca MÁ, Avendaño-Reyes L, Macías-Cruz U, Muhlia-Almazán A, Valenzuela-Melendres M, Peña-Ramos EA, Islava-Lagarda TY, González-Rios H. Muscle fiber morphometry and physicochemical characteristics of the Longissimus thoracis muscle of hair male lambs fed zilpaterol hydrochloride and implanted with steroids. Meat Sci 2021; 177:108490. [PMID: 33744607 DOI: 10.1016/j.meatsci.2021.108490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 03/04/2021] [Accepted: 03/05/2021] [Indexed: 10/22/2022]
Abstract
Muscle fiber morphometry and physicochemical characteristics were evaluated in LT muscles obtained from entire male lambs treated with zilpaterol hydrochloride (ZH, 0 and 0.15 mg/kg body weight) and/or steroidal implant (SI, with and without trenbolone acetate/estradiol). ZH and SI acted synergistically to increase LT area, type-IIb fiber cross-sectional area and soluble collagen content, likewise to decrease metmyoglobin concentration and insoluble collagen content. Ash content and ultimate pH showed a decrease due to an antagonistic effect between ZH and SI. Content of total collagen, protein, fat, moisture, oxidized lipids and water-holding capacity were unaffected by ZH and SI. Supplemental ZH, but not SI, decreased all color parameters and tended to increase shear force. Overall, the SI implantation of male lambs followed by a ZH supplementation promoted greater LT hypertrophy, without affecting protein and fat content, and physicochemical characteristics in their meat.
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Affiliation(s)
- M Ángeles López-Baca
- Centro de Investigación en Alimentación y Desarrollo, A. C., Carretera Gustavo Enrique Astiazarán Rosas, No. 46, Hermosillo, Sonora 83304, Mexico
| | - Leonel Avendaño-Reyes
- Universidad Autónoma de Baja california, Instituto de Ciencias Agrícolas, Valle de Mexicali, Baja California 21705, Mexico
| | - Ulises Macías-Cruz
- Universidad Autónoma de Baja california, Instituto de Ciencias Agrícolas, Valle de Mexicali, Baja California 21705, Mexico
| | - Adriana Muhlia-Almazán
- Centro de Investigación en Alimentación y Desarrollo, A. C., Carretera Gustavo Enrique Astiazarán Rosas, No. 46, Hermosillo, Sonora 83304, Mexico
| | - Martín Valenzuela-Melendres
- Centro de Investigación en Alimentación y Desarrollo, A. C., Carretera Gustavo Enrique Astiazarán Rosas, No. 46, Hermosillo, Sonora 83304, Mexico
| | - Etna Aida Peña-Ramos
- Centro de Investigación en Alimentación y Desarrollo, A. C., Carretera Gustavo Enrique Astiazarán Rosas, No. 46, Hermosillo, Sonora 83304, Mexico
| | - Thalia Y Islava-Lagarda
- Centro de Investigación en Alimentación y Desarrollo, A. C., Carretera Gustavo Enrique Astiazarán Rosas, No. 46, Hermosillo, Sonora 83304, Mexico
| | - Humberto González-Rios
- Centro de Investigación en Alimentación y Desarrollo, A. C., Carretera Gustavo Enrique Astiazarán Rosas, No. 46, Hermosillo, Sonora 83304, Mexico.
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