Intra-ventricular Pressure Gradient and Systolic Anterior Movement of the Mitral Valve Associated with Administration of Dopamine in a 91-year-old Patient
| Autor: | Hiroshi Matsuoka, Yuji Shigematsu, Kunio Hiwada, Takumi Sumimoto, Bonpei Murakami, Mitsunori Abe, Mikio Mukai, Mareomi Hamada, Hideki Okayama |
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| Rok vydání: | 1994 |
| Předmět: |
Aged
80 and over medicine.medical_specialty Systole business.industry Dopamine Ventricular Function Left medicine.anatomical_structure Echocardiography Internal medicine Mitral valve Pressure medicine Ventricular pressure Cardiology Humans Mitral Valve Female Heart Aneurysm Geriatrics and Gerontology business Aged medicine.drug |
| Zdroj: | Nippon Ronen Igakkai Zasshi. Japanese Journal of Geriatrics. 31:244-248 |
| ISSN: | 0300-9173 |
| DOI: | 10.3143/geriatrics.31.244 |
| Popis: | A 91-year-old woman had decreased systemic blood pressure accompanied by dyspnea and general fatigue after resection of a face tumor (Merkel cell carcinoma). Dopamine was administered to elevate systemic blood pressure, but it did not sufficiently restore the hemodynamic status. Left ventricular apical aneurysm was observed on echocardiogram. Furthermore, SAM (systolic anterior movement of the mitral valve) was observed on M-mode echocardiogram and a pressure gradient of 34.6 mmHg in the midventricular position was confirmed by continuous wave Doppler using the Bernoulli equation. After volume overload and discontinuation of dopamine, SAM completely disappeared and midventricular pressure gradient markedly decreased. Her general condition improved. Because of the narrowed outflow tract, hypercontractile state induced by beta adrenergic stimulation seemed to be one of the important factors for the genesis of SAM and pressure gradient. |
| Databáze: | OpenAIRE |
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