damage due to paraquat poisoning. Failure of ...

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death, we performed continuous hemoperfusion and hemodialysis daily as previously described.3. Respiratory function progressively declined and mechanical.
Failure of radiotherapy to resolve fatal lung damage due to paraquat poisoning. D Franzen, F Baer, W Heitz, H Mecking, S Eidt, H Käferstein, C A Baldamus, J M Curtius, H W Höpp and K Wassermann Chest 1991;100;1164-1165 DOI 10.1378/chest.100.4.1164 The online version of this article, along with updated information and services can be found online on the World Wide Web at: http://chestjournal.chestpubs.org/content/100/4/1164

Chest is the official journal of the American College of Chest Physicians. It has been published monthly since 1935. Copyright1991by the American College of Chest Physicians, 3300 Dundee Road, Northbrook, IL 60062. All rights reserved. No part of this article or PDF may be reproduced or distributed without the prior written permission of the copyright holder. (http://chestjournal.chestpubs.org/site/misc/reprints.xhtml) ISSN:0012-3692

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Failure of Radiotherapy to Resolve Fatal Lung Damage due to Paraquat Poisoning* M.D.; Frank Barr, MD.; Winfried Heitz, M.D.; Sebastian Eidt, M.D.; Herbert Kafersteln, Ph.D.; Conrad A. Baldamu,s, M.D; Julius M. Curtius, M.D.; Hans W H&pp, M.D.; and Klaus Wassermann, M.D., FC.C.P Damlan

S

Mecking,

,

The most efibetive treatment of severe paraquat poisoning in man is uncertain. In order to prevent pulmonary fibrosis, we employed radiotherapy of both lungs in a 23-year-old patient

with

severe

to prevent

paraquat

poisoning

it failed

however,

(Chest

the fatal outcome.

S .-.‘..

they

employed

radiotherapy

to

hemorrhage nification,

CASE A 23-year-old 25th

at 7

was

transferred

PM.

A gastric

instillation forced

man

After

PM.

lavage

diuresis over

determined

recurrent

to Cologne

were

activated

by

spectrophotometr

8 g of

2); the

performed

immediately At 1:15

AM

we

Paraquat

charcoal.

declined

1-Survey

ofSelected 25.3.

PaO,, mm Hg PaCO,, mm Hg Art 02 saturation,

%

he

irrigation

started

from

by and

hemoperfu-

serum

levels,

mgfL

2.5

Findings 26.3.

as

at

1

and

cm

kinase

level

mg/L mgfL

Corticosteroids,

mg/d

on

10 to 70 UIL)

day

started on the third day pressures up to 14 mm

Hg

concentration

and

a minimal

inspiratory

oxygen

27.3.

Course

in the 23-year-old

28.3.

31.3.

aimed

Idient#{176} 8.4.90

3.4.

89

67

43

56

66

47

26

36

45

34

37

38

78

98

96

93

83

88

90

21

30

34

64 100

9

10

14

1.1

1.3

2.8

2.9

2.4

3.7

4.7

2.5 160 1000

nd 80 1000

0.8

nd

nd

nd

-

nd

nd

nd

nd

-

1000

750

750

500

250

Hemoperfusion/dialysis Mechanical

ventilation

-

I

Radiotherapy 6nd

=

1164

at

95

5

Serum paraquat, urine paraquat,

range,

no evidence

H,O

Serumcreatinine,mg/dl

(normal

of 177 U/L

(maximum

declined and mechanical ventilation was (March 28th) using positive end-expiratory

and the Clinical

FIo,,% PEEP,

creatinine for 7 days

maintaining an arterial partial pressure of oxygen (PaO,) of 50 mm Hg.4 In concordance with the radiologic findings ofbilateral, patchy opacities that started to flare up on the third day, bronchoscopy revealed severe hemorrhagic alveolitis; the examination of the bronchial lavage fluid (differential cytologic study, fibrinolytic activity) on the fourth and eighth day (Fable 2) was compatible with toxic lung injury.5’6 Because ofapparent deterioration ofthe patient’s lung function, we started radiotherapy of both lungs on the fifth day (March 30th) using parallel opposed fields with a total dose of 14.4 Gy in daily fractions of 1.8 Gy. Although the clinical condition was

at 11

6From the Departments of Medicine, Radiotherapy, Pathology, Forensic Medicine, University ofCologne, Germany.

Table

on

followed

whole-gut

serum

5); there was, ofcardiac involvement. The clinical course is depicted in Table 1. Until the patient’s death, we performed continuous hemoperfusion and hemodialysis daily as previously described.3 Respiratory function progressively however,

vomiting, Hospital

mag-

x 200).

was elevated

prevent

paraquat

spontaneous University

subsequently,

instituted.

coated

and

(Germany)

was

of absorbents;

ingested

intra-alveolar original

mg/L at 4 AM , and were not detectable at 6 AM . The serum paraquat measurements to follow (twice daily) were below the detection limit of 0.3 mg/L, except for a single peak value of 0.8 mg/L on the morning of March 27th that was most likely due to redistribution.’ On presentation, results of all routine laboratory investigations were normal. On the second day, the serum creatinine concentration (normal range, 0.7 to 1.5 mg/dl) rose from 1.1 to 2.8 mg/dl and reached a maximum of3.7 mg/dl on the eighth day; the serum cholinesterase level (normal range, 3,000 to 8,000 UIL) fell transiently from 5,100 to a minimum of 1,700 U/L (day 5) and the serum lipase level (normal range, 30 to 180 U/L fell to 15 U/L (day

REPORT

intentionally

lung specimen with severe deposits (hematoxylin-eosin,

AM to 13.

fibroblast proliferation and ultimate interstitial fibrosis. We present a case of severe paraquat poisoning and failure of radiotherapy to stop or reverse the pulmonary damage.

March

1. Postmortem and fibrin

FIGURE

a quaternary bipyridyl herbicide, is-even if ingested in small quantities-extremely toxic to man. Its toxicity is related to the generation ofoxygen-free radicals that cause lipid peroxidation of cell membranes. Although ingestion of large amounts of paraquat may be fatal within hours, death is usually delayed several weeks due to the insidious development ofsevere interstitial pulmonary fibrosis and subsequent fatal hypoxia. Conventional treatment regimens, including hemoperfusion or hemodialysis, have often failed to prevent the fatal outcome in cases of severe paraquat poisoning. In 1984, Webb and associates’ reported resolution of paraquat-induced pulmonary damage by radiotherapy in a 29-year-old man; after an unsuccessful trial with prednisolone and cyclophosphamide,

-.

1991; 100:1164-65)

P araquat,

sion

-S

M.D.;

Franzen,

Hartmut

--‘

I

I

not detectable.

Failure of Radiotherapy

to Resolve Fatal Lung Damage

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(Franzen

eta!)

Table 2-The Lavage Fluid

Differential

a Predominance

Bronchoalveolar

Lavage

of Bronchoalveolar

Cytology

Showed

3i29,O

Fluid

verlaufende

Normal Range, %

4i2/90

(Day 4)

(Day 8)

Macrophages,

%

8

23

90-96

Lymphocytes,

%

8

9

6-8

Neutrophils,

%

65

64