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Biomedical subjects

A B Snyder

Publications and source records attributed to A B Snyder.

8 recordsLinked to original sources
PubMed1997

Thoracotomy versus video-assisted thoracoscopic pleurectomy for spontaneous pneumothorax.

We reviewed our experience with thoracotomy (TH) and video-assisted thoracoscopic pleurectomy (VAT) for the treatment of recurrent spontaneous pneumothorax. Nine patients underwent 10 VATs. One patient had bilateral procedures 1 week apart. Nine patients underwent 10 THs. One patient had bilateral TH at the same session. The mean duration of postoperative hospital stay for VAT and TH was 5.7 days and 6.4, respectively. VAT operative time was longer (128 vs 93.6 min in the TH group); however, the estimated blood loss was larger in the TH group (136 vs 108.3 ml in the VAT group). There were no deaths in either group. In the VAT group, one patient had recurrence of pneumothorax 1 month after surgery. In the TH group, there was no recurrence of pneumothorax, but one patient had chronic pain at the site of the thoracotomy incision. One patient was lost to follow-up in each group. We conclude that VAT is a safe and reasonably effective treatment of spontaneous pneumothorax. However, large series with long-term follow-up are needed to place this procedure in its proper perspective.

Adult↗
PubMed1991

Treatment strategies in shock: use of oxygen transport measurements.

Shock has traditionally been categorized according to its cause. Shock can result from hemorrhage, primary cardiac failure, central nervous system failure, trauma, or sepsis. Therapeutic principles have been developed for each etiologic type. End points for such therapy have included optimization of pulmonary capillary wedge pressure, cardiac output, blood pressure, and urine output. Recent investigators agree that the common denominator in each of the shock syndromes is a reduction in the amount of oxygen consumed by the cell. The logical therapeutic approach would be to increase oxygen delivery to support the increased metabolic demand of the cells. The end point of resuscitation should be optimization of oxygen delivery and oxygen consumption. These variables are easily calculated by using data obtained from pulmonary artery catheter and laboratory measurements. The physician or nurse caring for critical ill patients should have a thorough understanding of the rationale for the use of oxygen transport calculations and the methods of manipulating oxygen delivery. A simple explanation of these principles including the importance of hemoglobin, cardiac index, and percent saturation of hemoglobin and suggested treatment strategies are presented.

Aged↗
PubMedDate not supplied

A simple method of repositioning the wayward central venous catheter.

Malposition of a central venous catheter occurs despite improvements in catheter design and regardless of the skill of the physician. A simple method of repositioning a central venous catheter has been successful in 25 of 25 attempts. Documentation of the rationale for the use of this technique is provided using x-rays.

Catheterization, Central Venous↗