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 27-year-old primigravid woman who requested neuraxial anesthesia during induction of labor. The anesthesia care provider, who was sleep deprived near the end of a 48-hour call shift (during which they only slept for 3 hours), performed the procedure successfully but injected an analgesic drug that was not appropriate for this indication. As a result, the patient suffered slower onset of analgesia and significant pruritis, and required more prolonged monitoring, than if she had received the correct medication. The commentary discusses the implications of sleep deprivation, especially in high-risk settings such as anesthesia care and obstetric care, and approaches to improve patient safety during labor and delivery.

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 56-year-old woman presented to the emergency department (ED) with shaking, weakness, poor oral intake and weight loss, constipation for several days, subjective fevers at home, and mild pain in the chest, back and abdomen. An abdominal x-ray confirmed a large amount of stool in the colon with no free air and her blood leukocyte count was 11,500 cells/μL with 31% bands. She received intravenous fluids but without any fecal output while in the ED. She was discharged to home with a diagnosis of constipation, dehydration and failure to thrive and planned follow-up with her primary care provider. Three days later, she was admitted to a second hospital and the surgeon found stercoral colitis and a large perforated “stercoral ulcer” of the proximal sigmoid colon with disseminated fecal and purulent material. Despite aggressive surgical and postoperative care, she expired from sepsis ten days later. The commentary summarizes the diagnosis and management of stercoral colitis and the importance of prompt identification of bandemia, which should trigger further investigation for an underlying infection.

A 50-year-old unhoused patient presented to the Emergency Department (ED) for evaluation of abdominal pain, reportedly one day after swallowing multiple sharp objects. Based on the radiologic finding of an open safety pin or paper clip in the distal stomach, he was appropriately scheduled for urgent esophagogastroduodenoscopy and ordered to remain NPO (nothing by mouth) to reduce the risk of aspirating gastric contents. However, the order was not communicated verbally and he was allowed to eat, leading to postponement of the procedure and ultimately to an unsatisfactory conclusion with discharge of the patient against medical advice. This case raises interesting questions about the evaluation and treatment of pica in the ED, the communication of dietary status information, the risks of procedural sedation in a non-fasting patient, and the evaluation of decisional capacity in a patient with recurrent pica.

A 56-year-old man was admitted to the hospital and required mechanical ventilation due to COVID-19-related pneumonia and acute respiratory failure. The care team performed a tracheostomy percutaneously at the bedside with some difficulty. The tracheostomy tube was secured, inspected via bronchoscopy, and properly sutured. During the next few days, the respiratory therapist noticed a leak that required additional inflation of the cuff to maintain an adequate seal. Before the care team could change the tracheostomy, the tracheal cuff burst, and the patient developed hypotension and required 100% inhaled oxygen via the ventilator. The commentary summarizes best practices regarding proper tracheostomy tube choice and sizing to prevent leaks around cuffs, the importance of staff education on airway cuff pressure monitoring, and the role of multidisciplinary tracheostomy teams to optimize tracheostomy care.

During an elective diagnostic cardiac catheterization, the cardiologist unintentionally perforated the patient’s left ventricular wall with the catheter. The cardiologist failed to recognize the perforation, failed to take corrective measures to address the problem, and continued with the cardiac catheterization, including coronary angiographic imaging. Soon after the end of the procedure, the patient complained of severe chest pain and echocardiographic images revealed bleeding around the heart caused by the catheter-related ventricular wall perforation. The patient underwent emergency exploratory surgery to fix the perforation within 40 minutes thereafter, but he did not survive. The commentary discusses the risks associated with diagnostic cardiac catheterization due to both patient- and operator-related factors and the importance of effective team communication and immediate recognition of iatrogenic injuries.

A 55-year-old man presented in hypotensive shock, presumably due to bacterial pneumonia superimposed on COPD. The nurse placed an arterial line appropriately in the patient’s radial artery for hemodynamic monitoring, but this line was inadvertently used to infuse an antibiotic. The patient experienced acute arterial thrombosis with resulting hand ischemia but responded to rapid thrombolytic and anticoagulant therapy. The commentary highlights several approaches to improving the safety of arterial injections, including the use of color-coded and Luer-specific connections, clear labeling of arterial lines, and the importance of monitoring arterial and central line pressures for signs of ischemia.

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.

A 66-year-old woman presented to the emergency department (ED) and was initiated on antibiotics and received fluid resuscitation for suspected urinary sepsis versus recurrent C. difficile colitis. However, the physical examination omitted an examination of her legs. Due to hospital overcrowding, the patient was kept in the ED overnight.

During her stay in the ED, the patient had persistent hypotension requiring norepinephrine infusion for approximately 12 hours. However, vital signs were notably absent from the medical record, with an 8-hour period during vasopressor administration in which no blood pressure measurements or limb assessments were recorded by nursing staff. After vasopressor administration ended, the primary service noted that the patient had cool lower extremities and no palpable pulses. A Vascular Surgery consultant determined that she had Rutherford Grade 3 ischemia and her limbs were non-salvageable; she underwent bilateral above knee amputations (AKA). Th commentary discusses the risk of limb ischemia in the setting of sepsis and peripheral vasoconstriction from pressor use, particularly among patients with underlying peripheral arterial disease, and the importance of close hemodynamic monitoring and timely intervention in patients with septic shock despite limitations created by ED and hospital overcrowding.

A 63-year-old man presented from a skilled nursing facility (SNF) with shortness of breath and was treated for mild heart failure exacerbation. An echocardiogram was performed but results were pending on discharge, with anticipation that the patient’s primary care provider would follow up the results. Two weeks later, the patient was readmitted from the SNF and was found to have endocarditis and infected pacemaker wires. The admitting physician reviewed the echocardiogram from the prior hospitalization and noted there was a vegetation on the tricuspid valve, which was an unexpected finding. Since the echocardiogram results had populated into the electronic health record after the patient was discharged, the result of the new vegetation was not flagged and no providers were contacted about this finding by the cardiologist who read the echocardiogram. Using the systems-based Swiss cheese model, the commentary discusses errors during transitions of care and strategies to decrease the number of figurative Swiss cheese holes, including checklists and structured handoffs, as well as effective communication regarding critical results.

An elderly patient (Patient A) with a recent diagnosis of B cell lymphoma with central nervous system (CNS) involvement was discharged home with the home medications belonging to his hospital roommate (Patient B). By the time his family had discovered the error, Patient A had taken three doses of the incorrect prescription. An investigation revealed that both patients brought their own unique home medications which were not on the hospital’s formulary, and Patient A was inadvertently given both his home bag of medications and Patient B’s. The commentary discusses the safety risks present when home medications are brought to the hospital for administration during the hospitalization.

A 25-year-old female was sent by ambulance to the emergency department (ED) by a mental health clinic for suicidal ideation. Upon arrival to the ED, she was evaluated by the triage nurse and determined to be awake, alert, calm, and cooperative and she denied current suicidal thoughts. The ED was extremely busy, and the patient was placed on a gurney with a Posey restraint in the hallway next to the triage station awaiting psychiatric social work assessment. Approximately 40 minutes later, the triage nurse noticed that the patient was missing from the gurney. Eight minutes later, the patient was found by a staff member in a bathroom in the radiology department adjacent to the ED. She was on the floor with her shoestrings tied around her neck. She was awake and breathing and was returned to the ED resuscitation room where she was evaluated by the physician. The commentary discusses the importance of timely psychiatric assessment, appropriate use of restraints and direct 1:1 observation, and how ED overcrowding compounds existing challenges in emergency medical care.  

This Spotlight Case highlights two cases of falls in older patients in nursing homes. The commentary discusses how risk factors for falls should be considered in care planning and approaches to fall prevention in long-term care settings.

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.

This case represents a known but generally preventable complication of calcium chloride infusion, eventually necessitating surgical amputation of the patient’s left fourth (ring) finger. The commentary discusses the importance of correctly identifying IV fluids as irritants or vesicants, risks associated with the use of vesicants such as calcium chloride, and the role of early recognition of infiltration and extravasation and symptom management to minimize tissue damage and accelerate healing.

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.

This case describes a 13-year-old girl who presented to several health care providers with typical symptoms, physical signs, and early laboratory findings suggestive of adrenal insufficiency (AI) yet the diagnosis was delayed for several months due to diagnostic biases. After she suffered a sudden cardiac arrest during a visit to her local emergency department and was airlifted to a tertiary care facility, she was found to be in adrenal crisis secondary to Addison’s disease. The commentary summarizes common diagnostic hazards and the importance of including rare and dangerous conditions (“zebras”) in the differential diagnosis for common complaints to prevent diagnostic errors.  

This patient with recently diagnosed adenocarcinoma of the esophagus underwent esophagoscopy with endoscopic ultrasound, which was complicated by thoracic esophageal perforation. The perforation was endoscopically closed during the procedure. However, there was a lack of clear communication regarding the operator’s confidence in the success of endoscopic closure and their recommendations for the modality and timing of follow-up imaging, which ultimately led to significant delays in patient care. The commentary discusses the importance of clear communication and hand-offs between proceduralists and other healthcare team members.

A 48-year-old obese man with a history of obstructive sleep apnea was placed under general anesthesia for corneal surgery. On completion of the operation, the patient was transferred to a motorized gurney to extubate him in a sitting position because the operating room (OR) table was too narrow. However, while the team was moving him from the OR table to the gurney, a nurse inadvertently pulled on the anesthetic machine hoses. The endotracheal tube became dislodged and the patient could not be ventilated. The commentary discusses considerations for regional versus general anesthesia and appropriate steps for extubation in obese and other high-risk patients, including the use of high flow nasal oxygen.