A morbidity and mortality review documented a high occurrence of hyperkalaemia in cardiac arrests associated with rapid blood transfusion, which resulted in further study. In order to stimulate events during rapid blood transfusion and cardiac arrest, the central circulation was modeled as a linear one compartment, and used to stimulate a child who suffered a hypovolaemic cardiac arrest and was resuscitated with rapid blood transfusion (RBT). The simulation suggested that the combination of RBT and a low cardiac output state could be associated with hyperkalaemia, if the potassium concentration in the plasma fraction of the transfused blood was greater than or equal to 10 mmol.L-1. In an associated clinical study the plasma potassium concentration during cardiac arrest was documented from a retrospective review of 138 cardiac arrests in a paediatric population. Patients were divided into two groups. The RBT-group received a rapid blood transfusion during resuscitation. The non-RBT group did not receive blood during resuscitation. During cardiac arrest the plasma [K] in the non-RBT group was 5.63 +/- 2.39 mmol.L-1 compared with 8.23 +/- 1.99 mmol.L-1 in the RBT-group (P less than 0.05). The hyperkalaemia during cardiac arrest in the RBT-group could be explained as a consequence of RBT to a hypovolaemic child with a low cardiac output.
Some authors have questioned the necessity for preoperative haemoglobin determination in paediatric patients. ~,2 Provincial law or hospital bylaws insist that the results of a haemoglobin (Hb) analysis are entered on the patient record before anaesthesia and surgery. 3-5 Furthermore, such constraints do not stipulate the minimum concentration of Hb that is safe for administration of anaesthesia. In fact the acceptable minimum preoperative Hb concentration necessary for the safe administration of general anaesthesia for elective surgery has long been an issue for debate.6-]0 This study was undertaken to determine the value of routine preoperative haemoglobin testing and to establish how these results influence the conduct of anaesthesia and surgery in a paediatric ambulatory day surgery unit.
1. More severe stages of prolapse are positively correlated with obstructive symptoms [Am J Obstet Gynecol 185:1332-1337, 2001], but not with other LUTS [Adv Urol 2013:5673753, 2013, Eur J Obstet Gynecol Reprod Biol 177:141-145, 2014, Am J Obstet Gynecol 199:683, 2008, Int Urogynecol J 21:1143-1149, 2010]. 2. One-week ambulatory pessary trial is an effective way to approximate postoperative results-one study correctly predicted persistent urgency and frequency in addition to occult stress urinary incontinence in 20% of study population [Obstet Gynecol Int 2012:392027, 2012]. 3. No preoperative overactive bladder (OAB) symptom was the best predictor for the absence of de novo OAB symptoms postoperatively [Int Urogynecol J 21:1143-1149, 2010]. 4. Urge incontinence patients respond favorably to sacral neuromodulation [Neurourol Urodyn 26: 29-35, 2007], botulinum toxin, and anticholinergic therapy [Res Rep Urol 8:113-122, 2016 , N Engl J Med, 367:1803-1813, 2012]. 5. Primary bladder outlet obstruction (BOO) can be treated effectively with alpha antagonists or anticholinergics, timed voiding, and pelvic physiotherapy as first-line therapy. Counseling regarding postoperative LUTS is key when planning POP surgery. A thorough understanding of patient history is crucial to successful repair. Patients with significant preoperative symptoms, history of neurologic disease, pelvic floor dysfunction, bladder neck obstruction, or higher stages of anterior wall prolapse may be higher risk for postoperative LUTS. UDS with or without reduction and an ambulatory pessary trial can help prognosticate. Patients will likely maintain a positive therapeutic relationship postoperatively for LUTS if counseled preoperatively.
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