Abstract：
PURPOSE:Stroke volume variation (SVV) is affected by many factors. Although elevated intra-abdominal pressure and a pneumoperitoneum have been shown to increase SVV in animals, a recent human study showed that SVV did not change as a pneumoperitoneum was established. However, we considered the results of this study questionable, and we therefore attempted to study whether SVV changes both before and after pneumoperitoneums in humans. METHODS:We performed a prospective observational study in 19 patients undergoing cholecystectomy or colectomy while on mechanical ventilation. Immediately before pneumoperitoneum, baseline registrations of variables were obtained (baseline I), which were measured every min for 5 min after the pneumoperitoneum was initiated. Immediately before the pneumoperitoneum was released, another baseline registration of variables was obtained (baseline II); these variables were then measured every min for 5 min. RESULTS:After the pneumoperitoneum was initiated, there were significant increases in SVV at the 2- to 5-min time points. After release of the pneumoperitoneum, there were significant decreases in SVV at the 1- to 5-min time points. CONCLUSION:A pneumoperitoneum increased SVV, which is similar to the findings of previous animal studies but is different from a previous clinical study. Upon release of the pneumoperitoneum, SVV decreased significantly, which is new information. SVV values must be estimated cautiously during a pneumoperitoneum.
journal_name
J Anesthjournal_title
Journal of anesthesiaauthors
Wajima Z,Shiga T,Imanaga Kdoi
10.1007/s00540-014-1963-ysubject
Has Abstractpub_date
2015-08-01 00:00:00pages
508-14issue
4eissn
0913-8668issn
1438-8359journal_volume
29pub_type
杂志文章abstract：PURPOSE:In order to elucidate the prominent factors involved in intraoperative bradycardia in adult patients, we retrospectively investigated the association between the potential risk factors and intraoperative bradycardia, using multiple logistic regression. METHODS:The perioperative records for 499 adult patients w...
journal_title：Journal of anesthesia
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