Publications by authors named "Manxu Zhao"

Objective(s): Acute kidney injury (AKI) is defined and staged by reduced urine output (UO) and increased serum creatinine (SCr). UO is typically measured manually and documented in the electronic health record, making early and reliable detection of oliguria-based AKI and electronic data extraction challenging. The authors investigated the diagnostic performance of continuous UO, enabled by active drain line clearance-based alerts (Accuryn AKI Alert), compared with AKI stage 2 SCr criteria and their associations with length of stay, need for continuous renal replacement therapy, and 30-day mortality.

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Cardiac surgery-associated acute kidney injury (CSA-AKI) affects up to 42% of cardiac surgery patients. CSA-AKI is multifactorial, with low abdominal perfusion pressure often overlooked. Abdominal perfusion pressure is calculated as mean arterial pressure minus intra-abdominal pressure (IAP).

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We describe a case of spontaneous retroperitoneal hematoma leading to abdominal compartment syndrome and organ failure during a complicated orthotopic heart transplantation in a patient previously on mechanical circulatory support. After the patient had been weaned of cardiopulmonary bypass, the patient suddenly became hemodynamically unstable despite good LV and RV function. While the patient was resuscitated, high intra-abdominal pressures were noted on a novel monitor measuring real-time intra-abdominal pressures and urinary output.

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Peripartum cardiomyopathy is a rare form of heart failure with significant perioperative implications. In this case report, we describe a 34-year-old gravida 5, parity 3, patient who was admitted for an elective cesarean delivery. During the delivery, the patient developed sudden cardiac arrest and was emergently intubated in the operating room.

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The anesthetic management of patients undergoing cardiac surgery on cardiopulmonary bypass can be challenging. Contact of blood with extracorporeal surfaces results in altered coagulational integrity and increased risk of bleeding. Patients with preexisting bleeding disorders are particularly vulnerable.

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Background: There is still controversy regarding the optimal strategy for managing postoperative nausea and vomiting (PONV) in high-risk surgical populations. Although acustimulation at the P6 acupoint has been demonstrated to be effective in preventing PONV, the effect of this nonpharmacologic therapy on the patient's recovery with respect to resumption of normal activities of daily living has not been previously assessed when it is used as part of a multimodal antiemetic regimen. Therefore, we designed this randomized, sham-controlled, and double-blind study to assess the efficacy of a disposable acupressure device (Pressure Right®; Pressure Point Inc.

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Background: Nonsteroidal antiinflammatory drugs have become increasingly popular as part of multimodal analgesic regimens for pain management in the ambulatory setting. We designed this randomized, double-blind, placebo-controlled study to evaluate the effect of postoperative administration of either a nonselective nonsteroidal antiinflammatory drug (ibuprofen) or the cyclooxygenase-2 selective inhibitor (celecoxib when administered as part of a multimodal analgesic regimen) on the severity of pain, the need for rescue analgesics, and clinically relevant patient outcomes after ambulatory surgery. The primary end point was the time to resumption of normal activities of daily living.

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Objective: To assess the usefulness of fluorescence in situ hybridization (FISH) for HER-2/neu amplification of breast carcinoma in archival fine needle aspiration biopsy (FNAB) specimens.

Study Design: All FISH performed on formalin-fixed, paraffin-embedded surgical specimens during January 2003-August 2003 at the University of California Irvine Medical Center were selected. Prior FNABs were retrieved.

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Bone morphogenetic proteins (BMPs) constitute a family of approximately 20 growth factors involved in a tremendous variety of embryonic inductive processes. BMPs elicit dose-dependent effects on patterning during gastrulation and gradients of BMP activity are thought to be established through regulation of the relative concentrations of BMP receptors, ligands and antagonists. We tested whether later developmental events also are sensitive to reduced levels of BMP signaling.

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