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Biomedical subjects

M N Dizon

Publications and source records attributed to M N Dizon.

5 recordsLinked to original sources
PubMed1999

Syncope two years after hysterectomy.

A 61-year-old woman presented to the emergency department after experiencing palpitations, shortness of breath, and syncope while taking a shower. Her husband revived her with mouth-to-mouth resuscitation. She had had a similar episode three days earlier while making her bed and had lost consciousness for about 10 sec. She did not appear to have had a seizure. Five months earlier, while taking a walk, she had experienced dizziness, dyspnea, and chest pressure lasting about an hour. A workup at that time included cardiac catheterization, lung scanning, and esophagogastroduodenoscopy, but no abnormality was found. Lower extremity edema was noted.

Endometrial Neoplasms↗
PubMed1997

Massive hemoptysis in a woman with seizures.

A 53-year-old woman presented with a productive cough, fever, chills, and night sweats of one month's duration. She reported having had lightly blood-streaked sputum initially but then experiencing massive hemoptysis (> 200 mL/2 hr). Since the onset of symptoms, she had had malaise, body aches, and a 27-lb weight loss. For the last two weeks, she had also had increasing shortness of breath and pleuritic chest pain.

Bacteria, Anaerobic↗
PubMedDate not supplied

Generalized resistance to thyroid hormone associated with possible selective cardiac nonresistance.

OBJECTIVE: To review the condition of generalized resistance to thyroid hormone and to report a case of generalized thyroid hormone resistance associated with atrial fibrillation. METHODS: A case report is presented of a 52-year-old man with atrial fibrillation who was referred by a cardiologist for thyroid ablation because of "hyperthyroidism," when his free thyroxine was found to be 4.35 ng/dL (normal, 0.55 to 2.46) and his free triiodothyronine was 6.5 pg/mL (normal, 1.4 to 4.4). RESULTS: This clinically euthyroid man with no signs or symptoms of hyperthyroidism except for the possibly related atrial fibrillation had a thyrotropin level of 3.45 mIU/L (normal, 0.46 to 4.7) in conjunction with the aforementioned increased levels of thyroid hormones. Further evaluation revealed normal 6-hour (11.7%) and 24-hour (27.6%) (123)I uptakes. Magnetic resonance imaging of the pituitary revealed a normal-sized gland with no masses. CONCLUSION: This is a rare case of generalized resistance to thyroid hormone in a patient with only atrial fibrillation. Whether the heart was selectively nonresistant to thyroid hormone as the cause of his atrial fibrillation or whether his atrial fibrillation was due to his mitral valve prolapse documented on echocardiography could not be determined with certainty. His ventricular rate of 83 per minute and laboratory evaluation suggest that thyroid hormone was not the cause of the atrial fibrillation.

Atrial Fibrillation↗