Publications by authors named "Ho Man Yeung"

No guidelines exist to guide hospitalists on whether inpatient MRI should be pursued for incidental liver masses. Here, we compare outcomes between patients who receive an inpatient MRI and those who did not, following detection of suspicious liver masses during hospitalization. A retrospective study of hospitalized patients with new HCC from Jan 1st, 2020 through Dec 31st, 2021 was conducted.

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The city of Philadelphia has seen an increase in homelessness and substance use disorders, often associated with xylazine-contaminated opiates. Here, we report the first two cases of wound infection and bacteremia associated with the Gram-negative rod species. Both cases were associated with maggot colonization in chronic lower extremity wounds from fentanyl/xylazine injections.

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Article Synopsis
  • The introduction of fentanyl and xylazine in the drug market has led to an increase in severe skin injuries among injection drug users, specifically from "tranq wounds."
  • This case series examines four patients treated for severe xylazine-related skin injuries, highlighting the deep, ulcerative wounds caused by the drug and the complications in their healing process.
  • The study emphasizes the need for a better understanding of these injuries, as treatment is often complicated by factors related to patients' social conditions and the ongoing prevalence of xylazine in the U.S. drug supply.
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Article Synopsis
  • Several severe hypocalcemia cases have emerged during COVID-19, potentially linked to virus interactions with parathyroid glands and other metabolic disturbances.
  • A case of a 73-year-old woman with a history of hyperparathyroidism and recent COVID-19 infection revealed significant hypocalcemia, requiring intensive treatment, including calcium infusions and antiviral medications.
  • Despite some improvement in calcium levels, high PTH levels indicated ongoing issues, suggesting that the reimplanted parathyroid gland might not be functioning effectively during the COVID-19 infection.
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Objectives: Management of opioid withdrawal in the inpatient setting can vary widely depending on the patient, the physician, and the institution. Although buprenorphine and methadone are first-line therapy for withdrawal management, some patients experience barriers to those medications. In this case series, we explore high dose opioid agonist therapy (HDOAT) as a novel and effective option to bridge to recovery in this particular setting.

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Introduction: There are a lack of data describing outcomes and follow-up after hospital discharge for patients with newly diagnosed cirrhosis with complication on index admission. This study examines factors that influence outcomes such as readmission, follow-up, and mortality for patients with newly diagnosed cirrhosis.

Methods: We conducted a single-center retrospective chart review study of 230 patients with newly diagnosed cirrhosis from January 1st, 2020 through December 31st, 2021.

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The opioid epidemic continues to influence the field of medicine, creating new challenges and obstacles to quality care. Patients with injection drug use are marginalized individuals who received poor quality of care and often discharged without safe recovery plan. Cooperation between physicians and patients allow the best outcomes for the patient, the physician, and society, however we often see patient-directed discharges and inadequate care.

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Background: No clinical tools currently exist to stratify patients' risks of patient-directed discharge (PDD).

Objective: This study aims to identify trends and factors associated with PDD, representation, and readmission.

Design: This was an IRB-approved, single-centered, retrospective study.

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Medical students and residents often have difficulty with discharge planning and determining appropriate post-hospitalization level of care. As the discharge planning process can be complex, physicians in-training often do not engage until late into the hospitalization or near day of discharge. This paper offers a simple pyramid construct that categorizes common discharge needs into 4 areas or tiers.

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A man in his 20s with a history of tobacco use presented with recurrent shortness of breath. He was hospitalised three times within the past 4 months for similar symptoms despite completing several courses of antibiotic therapy. In this presentation, he was afebrile with rhonchi and decreased breath sounds over the right lung.

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Discharge against medical advice (DAMA) represents an increasingly burdensome public health issue that leads to worse outcomes for patients and high costs to society. While the rate of patients who DAMA is higher within certain institutions and geographic locations, the problem is present across all healthcare systems. DAMAs are often challenging as they occur suddenly and can be unsatisfactory.

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Inpatient hospital costs have been increasing exponentially in the United States. Part of this increase is attributed to over and undertreatment, leading to higher costs and potential patient harm. Research improving clinician-patient interactions can help minimize and optimize the costs.

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Basilar predominant emphysema, or disproportionate emphysematous involvement of the lung bases compared to the apices, is an uncommon radiographic pattern of emphysema traditionally associated with alpha-1-antitrypsin deficiency (AATD). We present a case of a 59-year-old female with 41 pack-year tobacco use, Stage IV COPD with supplemental oxygen, and bibasilar predominant emphysema who successfully underwent bronchoscopic lung volume reduction. She presented with recurrent hospitalizations for frequent exacerbations.

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A man in his late 70s presented to the emergency department endorsing a week of malaise. He was recently hospitalised for 2 days for new back pain and was discharged with non-opioid pain medications but continued to seek care as he felt unwell. On presentation, he was afebrile with a leukocytosis.

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Introduction: This investigation aims to assess the outcomes for second-line therapies to treat extrapulmonary neuroendocrine carcinoma (EP-NEC) after first-line platinum-based chemotherapy.

Methods: With IRB approval, we conducted a retrospective study of EP-NEC patients that progressed on first-line platinum chemotherapy from 2008 to 2018. Demographic data and treatment-related characteristics were collected and represented as descriptive statistics.

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Diffuse large B cell lymphoma of the sigmoid colon and rectum is relatively uncommon and aggressive. Due to its nonspecific symptomatology, patients are often diagnosed late into the disease and present with life-threatening complications, such as hemorrhage, obstruction, or perforation, requiring emergent surgical intervention. Patients with colorectal lymphoma typically have inflammatory bowel disease or immunosuppression.

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is a common bacterial pathogen that causes atypical community-acquired pneumonia. Illness onset can be gradual and progressive over weeks. Patients typically have cough, pharyngitis, malaise, and tracheobronchitis.

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Neuroleptic malignant syndrome (NMS) is a potentially fatal diagnosis composed of hyperpyrexia, muscle rigidity, altered mental status, and autonomic instability. This syndrome has significant systemic complications including acute renal failure, rhabdomyolysis, hyperkalemia, and seizure. It is associated with the use of both typical and atypical antipsychotics.

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High grade neuroendocrine neoplasms (G3 NENs) are rare aggressive tumors with limited treatment options. Twenty-one previously treated patients with metastatic extra-pulmonary G3 NENs were treated with pembrolizumab. Baseline tumor samples were assessed for PD-L1 and tumor infiltrating lymphocytes (TIL).

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Small-bowel transit scintigraphy (SBTS) evaluates the accumulation of a radiolabeled meal in the terminal ileal reservoir (TIR) 6 h after ingestion. The location of the TIR may be difficult to determine because anatomic information is limited; for equivocal studies, the patient is asked to return the next day to help determine the TIR location by potential transit into the colon. The purpose of this study was to evaluate whether administration of an additional liquid-nutrient meal (LNM) at 6 h can promote movement of the radiolabeled meal to aid in the interpretation of SBTS and eliminate the need for the patient to return.

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Pulmonary artery intimal sarcoma (PAIS) is a rare tumor without clear syndromic presentation other than nonspecific symptoms of cough, dyspnea, and weight loss. This diagnosis is difficult due to challenging radiographic interpretations of multiple imaging modalities. We present a case of a 60-year-old male, who presented to his pulmonologist and underwent a CT chest with IV contrast that initially suggested primary lung carcinoma.

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Introduction: Anorectal mucosal melanoma (ARMM) is an uncommon and highly aggressive malignancy. Given its rarity, there is insufficient evidence on the optimal medical management which presents as a clinical challenge to its diagnosis and treatment. Treatment of ARMM typically involves a multimodal approach including surgical resection, chemotherapy, targeted therapy and/or immunotherapy.

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Acute esophageal necrosis (AEN) is a rare clinical diagnosis that primarily affects the distal third of the esophagus. AEN causes odynophagia, leading to decreased oral intake and food avoidance. AEN can arise in critically ill patients with multiple comorbidities and is an uncommon complication of diabetic ketoacidosis (DKA).

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