Page 1000 - Small Animal Internal Medicine, 6th Edition
P. 1000

972    PART VIII   Reproductive System Disorders





  VetBooks.ir  mm Hg












            mm Hg










            mm Hg











            mm Hg



            A





















                                                         FIG 55.21
                                                         Tocodynamometry. (A) Abnormal tocodynamometry recording. X axis
             B                                           is mm Hg; y axis is time in minutes. (B) Uterine torsion with loss of
                                                         fetus in the bitch with this abnormal tocodynamometry.


            contraction frequency. The action of oxytocin appears to be   Cesarean Section
            improved when given 10 to 15 minutes after giving calcium.   Surgical intervention (cesarean section) is indicated if a bitch
            Most bitches/queens are eucalcemic, suggesting that the   or queen fails to respond to medical management, or if fetal
            benefit of calcium administration is at a cellular or subcel-  distress is evidenced despite adequate to increased uterine
            lular level.                                         contractility (suggesting mismatch of maternal birth canal to
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