Random (and fast) search of Pubmed. A more detailed search might give more specific results but dd2 has colic and I'm running on next to no sleep!
Obstet Gynecol. 1999 May;93(5 Pt 1):674-9.
|RESULTS: The only significant differences were noted between those patients who delivered vaginally after a prior cesarean and those patients who delivered vaginally without a prior cesarean. Neonates in the successful VBAC group were more likely to have an Apgar score at 5 minutes less than 7 (OR 1.52) or an umbilical arterial pH less than 7.1 (OR 1.69). Those neonates, however, were not at greater risk for an Apgar score less than 4 or a pH less than 7.0.
(but their ultimate conclusion was that vbac was still low risk despite these findings)
J Obstet Gynaecol Res. 1998 Apr;24(2):129-34
|CONCLUSIONS: A trial of a VBAC significantly reduced the rate of cesarean sections. Although the rates of uterine rupture and neonatal asphyxia were slightly higher in women who attempted a VBAC than in women who underwent an elective cesarean section, obstetricians should offer the option of a trial of labor, because more than one-half of the women with a previous cesarean delivery might have successful vaginal deliveries, and the VBAC-related maternal mortality rate does not reportedly differ between women undergoing a trial of labor and women undergoing an elective repeat cesarean section.
(but they point out in their findings that the vbac group included babes with complications not seen in the c/s babes, including lower apgars)
N Engl J Med. 1996 Sep 5;335(10):689-95
|Apgar scores, admission to the neonatal intensive care unit, and perinatal mortality were similar among the infants whose mothers had a trial of labor and those whose mothers underwent elective cesarean section.
(this study points out a higher maternal risk from vbac, but not a higher infant risk)
J Matern Fetal Neonatal Med. 2004 Jun;15(6):388-93.
|CONCLUSIONS: Favorable initial pelvic examination, spontaneous labor and a lack of oxytocin use are associated with successful VBAC in women with a single prior low transverse Cesarean delivery and no prior vaginal deliveries. While attempted VBAC and failed VBAC have more maternal infectious morbidity and lower Apgar scores, infant outcomes are similar to those of elective repeat Cesarean delivery.
(in this study "attempted vbac" seems to mean "successful vbac" since they contrast it with "failed vbac". The findings do indicate a slightly higher level of risk for vbac babes and lower apgars, but it wasn't a "significant" difference.)
Okay...there are more but these are fairly representative. I didn't include any rabid anti-vbac papers since honestly I don't think "rabid-anything" lends itself to rational scientific inquiry. In general the studies show vbac babes have lower apgar scores and a higher risk for certain birth complications. However these risks don't appear to be severe and since a c/s isn't risk free for the babe either (I didn't find any studies comparing wet lung c/s babe rates to low apgar vbac babe rates for example) I don't know that they should influence a mama's decision.
Though it's always good to know what research is out there so you can discuss or explain your birth choice to care providers/family...
ETA- you all probably know the site, but http://www.worldserver.com/turk/birt...bac2005-9.html
maintains a collection of national and international vbac research. It's really well organized with summaries of the research findings. The site is maintained by a family with a sort of sad vbac story so don't go past the bibliography page if that will be upsetting to you...I know I read their personal story while pregnant and cried for hours so, um, just so you know ahead of time in case your pregnancy hormones are like mine were!