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B Schreiber

Publications and source records attributed to B Schreiber.

44 records · Page 3Linked to original sources
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[Comparison of knee and functional outcomes of patients lost to follow-up with patients remaining in a prospective total knee arthroplasty study].

PURPOSE: Survival analysis is correct when patients lost to follow-up are as healthy as patients still being followed. Therefore, the results of patients who missed the follow-up visits were determined and compared with the results of the patients still in the study. Revision surgery and the reasons for failing to reattend the follow-up visits were recorded. METHODS: Of 680 unconstrained total knee arthroplasties implanted between 1989 and 1994 with yearly patient evaluation according to the Knee Society 53 patients with 60 implants died, 17 patients with 19 implants could not be used for the study and 21 patients with 24 implants were interviewed by telephone. 56 patients with 61 implants lost to follow-up were examined by visiting them at their homes (drop-outs) and compared to the 460 patients with 516 implants still in the study. RESULTS: The drop-outs were older at surgery and had more medical infirmity than the remaining patients. Drop-outs had a lower mean function score and a tendency to a lower mean knee score at follow-up compared with the patients in the study. No revision surgery was performed in drop-out knees. Reasons for not reattending the follow-up were mainly long travel and health. CONCLUSIONS: Patients reattending a study are healthier than drop-outs. This censoring mechanism limits correct survival analysis. A complete follow-up of patients and separate assessment of knee and functional status with reliable and valid instruments is required.

Aged↗
PubMedDate not supplied

Kawan bronchial brush/cell block technique. Facilitation of the routine diagnosis of bronchial neoplasms.

OBJECTIVE: To evaluate cell block preparations as a tool for the diagnosis of pulmonary malignancy and to correlate the findings with those from brush cytology and histology from forceps biopsy. STUDY DESIGN: One hundred twenty consecutive samples from patients with primary or metastatic lung cancer were routinely processed and stained for cytologic and histologic examination. In addition to smears, a cell block was prepared from each brushing sample. Brush smears, cell blocks and biopsy specimens were compared and evaluated for their diagnostic accuracy. RESULTS: Brush cytology samples were interpreted as positive for malignancy in all 120 cases. In 42 cases immunohistochemistry performed on cell blocks led to the final precise type diagnosis. Owing to technical problems (stenosis, bleeding, peripheral location), forceps biopsy specimens were obtained from only 51 patients. CONCLUSION: In addition to lower patient risk, cell block preparation yields high diagnostic accuracy and may thus be considered an improvement in quality assurance.

Adenocarcinoma↗