Saudi journal of kidney diseases and transplantation : an official publication of the Saudi Center for Organ Transplantation, Saudi Arabia
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Saudi J Kidney Dis Transpl · Jan 2015
Case ReportsMetformin-related acidosis in a woman while performing Haj: a conservative approach.
Metformin is a first-line oral anti-hyperglycemic agent. It decreases insulin resistance, decreases hepatic glucose output and enhances peripheral glucose uptake. Metformin is used as a monotherapy in combination with other oral hypoglycemic agents. ⋯ The elimination of metformin is mainly through the kidneys, and raised plasma concentrations can cause lactic acidosis. Provided there is no overdose, metformin associated lactic acidosis rarely develops in patients without co-morbidities such as renal or hepatic insufficiency, acute infection or severe dehydration. Herein, we report a case of metformin-induced metabolic acidosis occurring in a woman who was severely dehydrated after performing Haj and treated conservatively.
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Saudi J Kidney Dis Transpl · Nov 2014
Randomized Controlled Trial Comparative StudyPreinduction hemodynamic fluctuations in renal transplant recipients--comparison of two combined anesthesia regimens.
An ideal anesthetic technique for a renal allograft recipient must ensure hemodynamic stability, enhance graft reperfusion, and provide good postoperative pain relief. Hence, a combined general and epidural anesthesia is preferred. In our clinical practice, it has been observed that in chronically ill end-stage renal disease (ESRD) patients, a bolus injection of epidural local anesthetics invariably necessitated the use of vasopressor agents. ⋯ These hypotensive episodes required a therapeutic intervention prior to general anesthesia, that is, intravenous mephenteramine (3-6 mg; 9.60±2.32 mg) and crystalloid infusion (189.28±21.29 mL). Intraoperative hemodynamic parameters, surgical blood loss, and transplanted kidney function were comparable between the groups. We concluded that the use of regional anesthetics needed to administered cautiously in renal transplant recipients to maintain hemodynamic parameters.
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Saudi J Kidney Dis Transpl · Nov 2014
Randomized Controlled TrialEffect of intraoperative human albumin on early graft function in renal transplantation.
Adequate intravascular volume maintenance is essential to ensure early graft function during renal transplantation. Various recommendations on optimum fluid therapy are based, at best, on sparse evidence, and that too only from observational studies. This prospective randomized controlled study was done to evaluate the effect of 20% human albumin on the early graft function in living donor renal transplantation. ⋯ Postoperative change in body weight [1.89±3.82 vs. 2.48±3.89 (kg)], tissue edema (10% vs. 7.5%), and pulmonary edema (2.5% vs. 5%) did not differ significantly (P>0.05). Twenty percent human albumin given intraoperatively, as a volume expander, does not improve early graft function in living donor renal transplantation. It should be used selectively rather than as a routine protocol.
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Saudi J Kidney Dis Transpl · Nov 2014
Case ReportsContinuous venovenous hemodiafiltration along with charcoal hemoperfusion for the management of life-threatening lercanidipine and amlodipine overdose.
Overdose with calcium channel blockers is uncommon, but is associated with high mortality. The management includes fluid resuscitation, calcium gluconate, glucagon, vasopressors, and high-dose insulin-euglycemia therapy. We describe a rare case of massive overdose of lercanidipine with shock, refractory to conventional therapies and multi-organ failure. Charcoal hemoperfusion with continuous venovenous hemodiafiltration was then used successfully and the patient showed remarkable recovery.
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Lactic acidosis is the result of imbalance between the systemic formation of lactate and its hepatic metabolism. In cancer patients, lactic acidosis is mainly associated with hematologic malignancies (leukemia and lymphomas) and the mechanism is known as Warburg's effect. We report a 76-year-old male known to have hypertension and coronary artery disease, who presented with abdominal distension and lactic acidosis. ⋯ It has bad prognostic implications. The use of intravenous bicarbonate as a temporary measure is of controversial benefit, as it can potentially worsen the metabolic acidosis and its use should be limited to patients with very low pH. In cancer patients, the use of lactatebased intravenous fluids can be potentially harmful and can increase the risk of tumor metastasis, at least in animal malignancy models.