PubMed Health⌕ Search

Biomedical subjects

A Mitake

Publications and source records attributed to A Mitake.

5 recordsLinked to original sources
PubMed1997

Assessment of the accuracy of indirect blood pressure measurements.

This study assessed the accuracy of indirect blood pressure (BP) measurements by simultaneously performing three kinds of indirect BP measurement on the left arm (auscultatory, microphone and oscillometric methods) and a direct BP measurement on the left arm. The subjects were 34 hospitalized patients, ranging in age from 18 to 73 years (average 47.5 years). Highly significant correlations in systolic or diastolic BP between a given pair of the three indirect methods. The indirect methods underestimated systolic BP and overestimated diastolic BP compared with the direct method, with differences of -12.2 +/- 10.5/+4.6 +/- 7.6 (systolic/diastolic BP) with the oscillometric method, -8.1 +/- 9.7/+1.2 +/- 8.9 with the microphone method and -10.6 +/- 8.1/+3.7 +/- 6.5 mmHg with the auscultatory method. The difference in systolic BP between the auscultatory and direct methods was greater and the difference in diastolic BP was smaller in subjects older than 50 years than in those aged 50 years or less (p < 0.001 for systolic BP, p < 0.05 for diastolic BP). The auscultatory method revealed greater systolic BP in subjects with increased carotid arterial wall stiffness assessed by echoarteriography. Thus, it is concluded that there are inherent differences in BP between the indirect and direct methods which can be attributed to the changes in arterial wall physical properties partly due to aging.

Adolescent↗
PubMed1997

[Assessment of auscultatory blood pressure measurements versus intra-arterial pressure in patients with atrial fibrillation].

The accuracy of auscultatory blood pressure (BP) determination was assessed in patients with chronic atrial fibrillation by performing simultaneous auscultatory BP determination on the upper arm and a direct BP determination on the contralateral arm. The subjects were three hospitalized patients, aged from 52 to 75 years. A Teflon catheter was introduced into the radial artery which was connected to a pressure transducer, and a cuff was twisted around the contralateral upper arm in the supine position. Simultaneous recording of directly determined BP and cuff pressure enabled the comparison of direct BP with auscultatory BP. The appearance of the Korotkoff I sound (systolic BP) and V sound (diastolic BP) was marked on the cuff pressure curve. This maneuver was repeated five times in each patient. The method of Bland and Altman was employed to assess the agreement between auscultatory and direct determinations. The auscultatory method estimated BP with differences of -14.3 to +27.3 mmHg in systolic BP and -12.1 to +11.9 mmHg (+/-2SD) in diastolic BP compared with the direct method. The difference in systolic BP between the auscultatory and the direct methods was greater than that in diastolic BP. Thus, there are unacceptable differences in systolic BP between auscultatory and direct methods that can be attributed to BP fluctuations. The auscultatory method in diastolic BP is more accurate than that in systolic BP and may be more useful in the clinical setting.

Aged↗
PubMed1987

[A case of metastasis from a colon carcinoma to an intracranial oligodendroglioma].

The following case of a metastasis from a colon carcinoma to an intracranial oligodendroglioma is reported. Radiologically, it was difficult to diagnose that the colon carcinoma had metastasized to an oligodendroglioma. A craniotomy was then performed. Histologically, it was diagnosed that the tumor was a moderately differentiated adenocarcinoma and oligodendroglioma. Also, in conclusion, a comparison of Japanese and foreign cases of metastasis from tumor to tumor is reviewed.

Adenocarcinoma↗