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Updated: Jul 24, 2025

The Left Pneumonectomy Combined with Monocrotaline or Sugen as a Model of Pulmonary Hypertension in Rats

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A 65-Year-Old Man With Massive Hemoptysis.

Keita Takeda¹, Masahiro Kawashima¹, Kimihiko Masuda¹

¹Center for Pulmonary Diseases, National Hospital Organization Tokyo National Hospital, Tokyo, Japan; Center for Pulmonary Circulation and Hemoptysis, National Hospital Organization Tokyo National Hospital, Tokyo, Japan.

|July 9, 2023

Summary

A 65-year-old man with a history of asthma experienced recurrent hemoptysis. Initial treatment provided temporary relief, but symptoms returned, necessitating further hospital evaluation for this persistent respiratory issue.

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Area of Science:

Pulmonology
Internal Medicine

Background:

Recurrent hemoptysis can present diagnostic challenges.
Understanding patient history, including comorbidities like asthma and hypertension, is crucial.

Observation:

A 65-year-old male presented with sudden cough and mild hemoptysis.
Initial treatment with tranexamic acid and carbazochrome salicylate temporarily resolved bleeding.
Symptoms recurred with intermittent, prolonged hemoptysis, dyspnea, and chest discomfort.

Findings:

The patient had a history of mild, unexplained hemoptysis 8 years prior.
Comorbidities included bronchial asthma (treated) and untreated hypertension and hyperuricemia.
No smoking, alcohol use, recent travel, or tuberculosis exposure was reported.

Implications:

This case highlights the importance of thorough investigation for recurrent hemoptysis, even after initial symptomatic improvement.
Identifying underlying causes is essential for effective long-term management.
Further diagnostic workup is required to determine the etiology of the recurrent bleeding.