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Related Concept Videos

Introduction Cardiac Emergencies01:30

Introduction Cardiac Emergencies

Cardiac emergencies are critical situations involving the heart that require immediate medical intervention to prevent severe complications or death. These emergencies often arise from underlying heart conditions that impair the heart's ability to function correctly.Types of Cardiac EmergenciesThe most common types of cardiac emergencies include Acute Coronary Syndrome (ACS), myocardial infarction (MI), cardiac arrest, and heart failure.Acute Coronary Syndrome (ACS)Acute Coronary Syndrome (ACS)...
Marine Microbial Ecology01:30

Marine Microbial Ecology

Marine microbial ecosystems are shaped by distinct physicochemical limits, including high salinity, low nutrient availability, and fluctuating oxygen levels. These conditions favor smaller microbial cell sizes, which maximize their surface-to-volume ratio for efficient nutrient uptake.Microbial activity and community composition are closely linked to biogeochemical cycles, particularly in dynamic environments like estuaries, where halotolerant microbes thrive in response to variable salinity...
Pulmonary Embolism I: Introduction01:29

Pulmonary Embolism I: Introduction

Pulmonary embolism (PE) occurs when a thrombus, fat or air embolus, amniotic fluid, or tumor tissue blocks one or more pulmonary arteries. These blockages originate in the venous system or the right side of the heart.EtiologyPE primarily arises from deep vein thrombosis (DVT) and other hypercoagulable states, such as inherited thrombophilias. Additional etiological factors include venous stasis, commonly seen in obesity, and endothelial injury from surgery and trauma. Less common causes include...
Pulmonary Embolism I: Introduction01:19

Pulmonary Embolism I: Introduction

A blood clot, or thrombus, is a semi-solid mass composed of fibrin, platelets, and red blood cells. When it forms within a vessel, it can obstruct blood flow, known as thrombosis. If part of the clot detaches, it becomes an embolus that can travel and block distant vessels. When this occurs in the pulmonary arteries, it causes a condition known as pulmonary embolism (PE).Origin and ImpactMost often, the embolus originates from a thrombus in the deep veins of the lower limbs, a condition called...
Pneumothorax-I01:26

Pneumothorax-I

A pneumothorax is a condition where air builds up in the space between the lung and the chest wall, causing the lung to collapse. This condition arises when air enters the space between the parietal and visceral pleura, disrupting the negative pressure essential for lung inflation. This can lead to a partial or complete collapse of the lung.
Pneumothorax can be even further classified as spontaneous, traumatic, and tension pneumothorax.
Acute Coronary Syndrome I: Introduction01:30

Acute Coronary Syndrome I: Introduction

Acute Coronary Syndrome (ACS) encompasses a spectrum of heart conditions caused by sudden obstruction of coronary arteries, typically resulting from the rupture of an atherosclerotic plaque and subsequent thrombus (blood clot) formation. This obstruction can lead to partial or complete blockage of blood flow, causing varying degrees of myocardial ischemia or infarction.ACS includes the following clinical entities:Unstable Angina (UA)Non-ST-Elevation Myocardial Infarction (NSTEMI)ST-Elevation...

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Updated: Jul 13, 2026

A Standardized Procedure for Monitoring Harmful Algal Blooms in Chile by Metabarcoding Analysis
09:47

A Standardized Procedure for Monitoring Harmful Algal Blooms in Chile by Metabarcoding Analysis

Published on: August 26, 2021

Maritime health emergencies.

Mary Pat McKay1

  • 1The George Washington University Medical Center-Emergency Medicine, 2150 Pennsylvania Avenue, NW Suite 2B, Washington, DC 20037, USA. mmckay@mfa.gwu.edu

Occupational Medicine (Oxford, England)
|July 27, 2007
PubMed
Summary

Medical issues, not trauma, are the most common reason for US shipboard physician consultations. However, injuries and psychiatric conditions necessitate more extensive medical intervention and medication.

Area of Science:

  • Maritime Medicine
  • Emergency Medicine
  • Epidemiology

Background:

  • US-flagged commercial vessels require onboard medical care and physician consultation for prescriptions.
  • Seafarers undergo pre-screening, despite inherent occupational risks.

Purpose of the Study:

  • To investigate the epidemiology of medical consultations made by US ships at sea.
  • To analyze the nature and frequency of medical advice sought by shipboard caregivers.

Main Methods:

  • Retrospective analysis of 866 cases over 48 months.
  • Examined contacts between shipboard caregivers and US emergency medicine physicians.
  • Categorized cases into medical, injury, and psychiatric conditions.

Main Results:

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  • 84% of cases were medical, 14% injuries, 2% psychiatric.
  • Respiratory infections, abdominal issues, genitourinary complaints, rashes, and dental problems were common medical issues.
  • Injuries and psychiatric cases required more physician contacts and medication than medical cases.

Conclusions:

  • The majority of medical advice sought at sea concerns non-traumatic conditions.
  • Acute psychiatric and injury-related cases demand more physician interaction and pharmacotherapy.
  • Understanding these trends can optimize medical support for seafarers.