Coronial
VIChospital

Finding into death of Ann-Maree Manno

Deceased

Ann-Maree Manno

Demographics

57y, female

Coroner

Deputy State Coroner Caitlin English

Date of death

2019-03-30

Finding date

2022-01-20

Cause of death

Pulmonary thromboembolism

AI-generated summary

Ann-Maree Manno, 57, died from pulmonary thromboembolism 8 days after laparoscopic gastric band surgery. She had significant risk factors: obesity (BMI 37.9), history of unprovoked DVT in 2007 and 2016, and recent surgery. A haematologist had previously recommended prophylactic enoxaparin for high-risk periods including post-surgery, but this recommendation was not communicated to the surgeon. While in-hospital VTE prophylaxis was provided, she was discharged without chemical prophylaxis or TED stockings despite the surgeon's stated usual practice including TED stockings. The first dose of post-operative heparin was delayed 12 hours. The coroner could not establish that these specific failures directly caused death, but identified systemic gaps: lack of national/state guidelines for VTE prophylaxis in bariatric surgery, communication failures between specialists, and inconsistent application of prophylaxis protocols. The case highlights need for standardized guidelines and better coordination of thromboembolism risk management.

AI-generated summary and tagging — may contain inaccuracies; refer to original finding for legal purposes. Report an inaccuracy.

Specialties

bariatric surgeryanaesthesiahaematologyrespiratory medicinegeneral practice

Error types

communicationsystemmedication

Drugs involved

heparinenoxaparinoxycodone

Clinical conditions

pulmonary thromboembolismdeep vein thrombosisobesityhiatus hernia

Procedures

laparoscopic gastric band surgeryhiatus hernia repairsequential calf compressionTED stockings application

Contributing factors

  • History of unprovoked DVT (2007, 2016)
  • Obesity (BMI 37.9)
  • Recent laparoscopic gastric band surgery with hiatus hernia repair
  • Lack of communication between haematologist's thromboprophylaxis recommendation and surgical team
  • Delayed administration of post-operative heparin (12 hours late)
  • Discharge without chemical VTE prophylaxis despite high-risk features
  • Discharge without TED stockings despite surgeon's usual practice
  • Absence of standardized national/state guidelines for VTE prophylaxis in bariatric surgery
  • Discrepancy between documented clinical pathway and actual nursing practice regarding TED stockings

Coroner's recommendations

  1. Safer Care Victoria should develop an evidence-based guideline for VTE prophylaxis for bariatric surgery patients consistent with Queensland Health guideline, to be incorporated into a standard care pathway to ensure appropriate consideration of VTE prophylaxis according to patient risk level
Full text

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