WebM&M: Case Studies

A 31-year-old pregnant patient with type 1 diabetes on an insulin pump was hospitalized for euglycemic diabetic ketoacidosis (DKA). She was treated for dehydration and vomiting, but not aggressively enough, and her metabolic acidosis worsened over several days. The primary team hesitated to prescribe medications safe in pregnancy and delayed reaching out to the Maternal Fetal Medicine (MFM) consultant, who made recommendations but did not ensure that the primary team received and understood the information. The commentary highlights how breakdowns in communication amongst providers can lead to medical errors and prolonged hospitalization and how the principles of team-based care, communication, and a culture of safety can improve care in complex health care situations.

This case describes a 65-year-old man with alcohol use disorder who presented to a hospital 36 hours after his last alcoholic drink and was found to be in severe alcohol withdrawal. The patient’s Clinical Institute Withdrawal Assessment (CIWA) score was very high, indicating signs and symptoms of severe alcohol withdrawal. He was treated with symptom-triggered dosing of benzodiazepines utilizing the CIWA protocol and dexmedetomidine continuous infusion. The treating team had planned to wean the infusion; however, the following day, the patient was noted to be obtunded on a high dose of dexmedetomidine. He remained somnolent for two additional days and subsequently developed aspiration pneumonia and Clostridioides difficile colitis, which further prolonged his hospital stay and strained relationships among the patient's family, the nursing staff and medical team. The commentary reviews the medications commonly used to treat alcohol withdrawal and the risks associated with these medications, the use of standardized medication order sets for continuous weight-based infusions within the intensive care unit, and ways to minimize clinician bias in assessing and treating substance use disorders.

A 25-year-old obese patient required an emergency cesarean delivery. As the obstetric team was in a hurry to deliver the baby, the team huddle was rushed. After the delivery, the anesthesia care provider discovered that the patient had received subcutaneous enoxaparin 40 mg four hours preoperatively, which was not mentioned by the obstetric team during the previous huddle. The patient developed a dense, persistent motor and sensory block of the lower limbs at 6 to 8 hours after delivery, which gradually wore off and the patient recovered without any permanent sensory or motor impairment. The commentary highlights the importance of preoperative huddles and pre-incision time out checklists to improve patient outcomes as well as the role of emergency cesarean simulation training for obstetric, anesthesia and nursing care teams.

This case involves a procedural sedation error in a 3-year-old patient who presented to the Emergency Department with a left posterior hip dislocation. The commentary summarizes the indications and risks of procedural sedation in non-surgical settings and highlights the value of implementing system-wide safety protocols and practices to prevent medication administration errors during high-risk procedures.

An adult woman with a history of suicidal ideation was taking prescribed antidepressants, but later required admission to the hospital after overdosing on her prescribed medications. A consulting psychiatrist evaluated the patient but recommended sending her home on a benzodiazepine alone, under observation by her mother. The commentary discusses challenges in assessing suicide risk and establishing the underlying diagnosis after a suicide attempt, the importance of managing relationships between psychiatric consultants and other physicians, and the role of appropriate pharmacotherapy and follow-up after the patient has medically recovered from a suicide attempt.

A 38-year-old man with end-stage renal disease (ESRD) on chronic hemodialysis was admitted for nonhealing, infected lower leg wounds and underwent a below-knee amputation. He suffered from postoperative pain at the operative stump and was treated for four days with regional nerve blocks, as well as gabapentin, intermittent intravenous hydromorphone (which was transitioned to oral oxycodone) and oral hydromorphone. The patient subsequently developed severe metabolic encephalopathy due to overdose of both gabapentin and opiates and failure to reduce medication doses in the setting of ESRD. The commentary discusses pain management and the signs of gabapentin toxicity in patients with renal dysfunction, as well the implications of clinical decision support-related alert fatigue and approaches to reduce adverse events arising from drug-disease interactions.

This WebM&M features two cases involving patients undergoing surgical procedures who received perioperative opioid analgesics to aid in pain and sedation efforts and who experienced adverse events due to opioid stacking. The commentary provides evidence-based suggestions for optimal management of patients who are administered opioid therapy, including standardized sedation assessment, advanced patient monitoring strategies, appropriate use of naloxone, and non-opioid pain management strategies.

This case describes multiple emergency department (ED) encounters and hospitalizations experienced by a middle-aged woman with sickle cell crisis and a past history of multiple, long admissions related to her sickle cell disease. The multiple encounters highlight the challenges of opioid prescribing for patients with chronic, non-cancer pain. The commentary discusses the limitations of prescription drug monitoring program (PDMP) data for patients with chronic pain, challenges in opioid dose conversions, and increasing patient safety through safe medication prescribing and thorough medication reconciliation.

A 64-year-old woman was admitted to the hospital for aortic valve replacement and aortic aneurysm repair. Following surgery, she became hypotensive and was given intravenous fluid boluses and vasopressor support with norepinephrine. On postoperative day 2, a fluid bolus was ordered; however, the fluid bag was attached to the IV line that had the vasopressor at a Y-site and the bolus was initiated. The error was recognized after 15 minutes of infusion, but the patient had ongoing hypotension following the inadvertent bolus. The commentary summarizes the common errors associated with administration of multiple intravenous infusions in intensive care settings and gives recommendations for reducing errors associated with co-administration of infusions.