Methods Clinical Data All women who presented for delivery at the University of California, San Diego Medical Center between January 1, 1990, and June 30, 1991, who did not have a documented TBN-ST were eligible to be included in the study. Since a TBN-ST is included in routine prenatal screening, this group consisted almost entirely…
Therefore, starting in the late 1970s, all women presenting for delivery who did not have a TBN-ST documented received a chest roentgenogram to screen for tuberculosis. This practice was expensive, timeconsuming and did not identify most patients who were infected with Mycobacterium tuberculosis and were candidates for isoniazid prophylaxis. The use of the chest roentgenogram…
Screening obstetric patients for tuberculosis in communities with a high prevalence is an important part of a comprehensive tuberculosis control program. Until the 1970s, routine prenatal screening usually included a chest roentgenogram, but several studies demonstrated the low yield and high cost of such a policy and it is no longer recommended. Currently, many obstetrics…
Second, the area of color-flow jet used to assess the severity of valvular regurgitation may be dependent on factors other than regurgitant volume, such as jet velocity, chamber compliance, ventricular function, and the eccentricity of the jet. Third, although the same criteria for determining valvular sclerosis and annular calcification were utilized both in older and…
Although our finding of tricuspid regurgitation in 68 percent of our patients is somewhat less than the 80 percent to 90 percent reported in detailed research studies performed for evaluation of right-sided cardiac pressures, the prevalence reported in this study is similar to that reported in several studies of “normal” volunteers but considerably higher than…
These data are particularly important, especially considering the increasing diffusion of Doppler echocardiography into community practice. The finding that 94 percent of “normal” subjects have valvular regurgitation of at least one valve raises issues with regard to patient well-being, employability, insurability, and endocarditis prophylaxis recommendations. In fact, recent data from Olmsted County, Minnesota, indicated that…
Of those with measurable right-sided pressures, 57 percent had a peak right ventricular and pulmonary artery systolic pressure ^30 mm Hg, and only 13 percent (or 6 percent of all patients) had pressures ^40 mm Hg. Of those with measurable RAP, 93 percent had pressures <10 mm Hg and only 7 percent had an estimated…
Results The clinical characteristics, including age, sex, and reason for Doppler echocardiographic referral, are listed in Table 1. As demonstrated in Figure 1, in the majority of patients (94 percent), valvular regurgitation was detected by Doppler in at least one valve, and in many (56 percent), regurgitation was detected in two or three valves (mitral,…
In borderline cases, the severity grading of aortic regurgitation was influenced by the intensity of the continuous-wave regurgitant envelope. (3) Pulsed-Doppler evaluation of descending thoracic aortic flow was analyzed. Aortic regurgitation was graded as trivial or mild if no diastolic reversal was present, moderate if reversal was present only in the first half of diastole,…
Fifty studies were reinterpreted by one echocardiographer (C.J.L.), who was blinded to the original interpretation, to determine intraobserver and interobserver reproducibility for prevalence of mitral and tricuspid regurgitation. Of these 50 studies, 25 were originally interpreted by the same echocardiographer and the others by 1 of 2 different staff echocardiographers. The intraobserver and interobserver reproducibilities…
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