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Table 1 Description of variables evaluated during thoracoscopy of calves chronically affected with BRD

From: Thoracoscopy as a safe and effective technique for exploring calves affected with bovine respiratory disease

Parameter abreviationa

Descriptionb

Score/Time of measurement

Definition of score

Further explanation

Animal

T (°C)

Rectal temperature at surgery

BW (kg)

Body weight

BW1

BW at surgery

 

BW2

BW 22 d after surgery

BMP

Breaths per minute

BMP1

BPM pre-surgery

BMP2

BPM during surgery

BMP3

BPM post-surgery

F (mg/dL)

Serum fibrinogen

F1

F at surgery

F2

F 6 d after surgery

Technical

t (min)

Duration of surgery

EA (mL)

Volume of extracted air

VS  (1–4)

Visualization scope

1

Excellent

Complete view of cranial lobes and between

2

Optimal

Complete view of cranial lobes

3

Valid

Peripheral view of cranial lobes

4

Invalid

No view of cranial lobes

IQD  (1–3)

Image quality descriptionc

1

Excellent

 

2

Moderate

3

Bad

Safety

PS  (1–4)

Pain Score

1

None

No sign of pain

2

Slight

1–3 vocalizations

3

Moderate

>3 vocalizations

4

High

>3 vocalizations and kicking

RT  (1–4)

Recovery time

1

Immediate

eating, drinking and/or ruminating during the first 15 min after surgery

2

Fast

= RT 1 by 15–30 min after surgery

3

Medium

= RT 1 by 30–60 min after surgery

4

Late

= RT 1 at >60 min after surgery

RL  (1–3)

Risk of lung perforation or laceration

1

Low

>1 cm between cannula and lung

2

Medium

~1 cm between cannula and lung

3

High

<1 cm between cannula and lung

IOC

Intraoperative complications

 

Description

RC (%)

Risk of threatening passive collapse

 

Yes or no

Diagnostic

OBRD-L

observed BRD lesions

Adhesions

 

Yes or no

Edema

 

Yes or no

Emphysema

 

Yes or no

Acute lesions

 

Yes or no

Chronic lesions

 

Yes or no

Abscess

 

Yes or no

Others

  
  1. aParameters are shown with their abbreviated name and, in parentheses, the units or possible range of values
  2. bParameter abbreviations are explained in this column
  3. cImage clarity, light output, focusing capability and pixelation of zoomed images