Most common incision in episiotomy is?

AIIMS Bhuvneshwar NO- 2018

Obstetrics & Gynaecology

Easy

Appeared in: AIIMS Bhuvneshwar NO- 2018

Explanation

An episiotomy is a surgical cut made in the perineum to enlarge the vaginal opening for childbirth.
The mediolateral incision is the most common type performed globally.
It starts at the midline of the fourchette and is directed posterolaterally at an angle of 45-60 degrees.
The primary reason for its preference is that it significantly reduces the risk of the incision extending into the anal sphincter and rectum (third and fourth-degree tears).
While it may cause more bleeding and pain than a median incision, the benefit of protecting the anal sphincter outweighs these drawbacks in many clinical situations.

Option B: A lateral episiotomy, which starts 1-2 cm away from the midline, is rarely used. It is associated with a higher risk of excessive bleeding, damage to the Bartholin's gland duct, and results in poorer healing and cosmetic outcomes.
Option C: The term 'Medial' is not a standard classification for an episiotomy incision. It is often used incorrectly to refer to a 'Median' or 'midline' incision and serves as a distractor.
Option D: A median (or midline) episiotomy is less common than a mediolateral one. Although it is easier to repair and associated with less pain and blood loss, it carries a significantly higher risk of extending into the anal sphincter and rectum, which can lead to long-term complications like anal incontinence.

Visual 1: Diagram - A clear anatomical diagram showing the perineum with lines illustrating the direction and location of median, mediolateral, and lateral episiotomy incisions. This helps learners visualize the key differences.
Visual 2: Comparison Table - A table summarizing the pros and cons of mediolateral versus median episiotomy, covering aspects like risk of sphincter injury, blood loss, pain, and ease of repair.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Types and characteristics of episiotomy incisions used in childbirth as background academic context rather than a clinical decision trigger.
Post-episiotomy care is a critical nursing responsibility. It includes assessing the wound for signs of infection (redness, swelling, discharge), hematoma formation, and wound dehiscence (separation).
Nurses must educate the patient on proper perineal hygiene, such as using a peri-bottle to cleanse the area with warm water after urination/defecation and patting dry from front to back to prevent infection.
Pain management is key and involves applying ice packs for the first 24 hours to reduce swelling, followed by sitz baths. Administering prescribed analgesics is also important.

How to Approach the Question

Identify the core question: The question asks for the 'most common' type of episiotomy incision.
Recall the main types of episiotomy: Remember the standard classifications are Median (midline) and Mediolateral. 'Lateral' is rare, and 'Medial' is not a standard term.
Analyze the risk-benefit profile of each type: The key trade-off is between the ease of repair and lower initial pain (Median) versus the protection against severe perineal tears (Mediolateral).
Synthesize the information: Conclude that because avoiding severe, long-term complications like anal sphincter injury is a primary goal, the mediolateral incision is the most widely preferred and therefore most common technique, despite some short-term disadvantages.
Select the correct option based on this clinical reasoning.

Concept Tested & Keywords

Concept Tested: Types and characteristics of episiotomy incisions used in childbirth.
Stem keywords: episiotomy, incision, most common
Lead-in keywords: Most common

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