In modern clinical medical practice,
anesthesia puncture packs are core medical devices that ensure the safe and
effective performance of anesthesia procedures. Due to differences in design
concepts and specification parameters, different models of anesthesia puncture
packs are suitable for distinct clinical scenarios. The accuracy of their
selection directly affects the effectiveness of anesthesia and patient safety.
Currently, based on variations in clinical application scopes, anesthesia
puncture packs are mainly categorized into four models: AS-E, AS-S, AS-N, and
AS-E/SⅡ.
This article will elaborate on the specific clinical application of the AS-E type anesthesia puncture pack.
The AS-E type is applicable for epidural
nerve block (commonly known as epidural anesthesia). Its working principle
involves accurately delivering local anesthetics into the epidural space to
block spinal nerve roots, ultimately achieving a regional anesthesia effect.
In terms of clinical application scenarios, epidural block is mainly used for surgeries involving the abdomen and areas below the abdomen, including urological surgeries, gynecological and obstetric surgeries, and lower limb surgeries. Among these, high epidural block is mostly used for postoperative pain management or combined with general anesthesia (i.e., general anesthesia combined with epidural anesthesia) to reduce the dosage of general anesthetics. For any surgical type suitable for subarachnoid block, epidural block anesthesia can also be adopted. Additionally, epidural block is applied in postoperative analgesic management and chronic pain treatment.
Epidural anesthesia supported by the AS-E
type anesthesia puncture pack features four core advantages:
1. Precise and Controllable Anesthesia
Scope
Medical staff can flexibly adjust the
injection segment and dosage of local anesthetics according to the surgical
site and actual treatment needs. This adjustment method not only effectively
blocks pain transmission in the surgical area and avoids unnecessary
interference with nerve function in other parts but also preserves the
patient’s consciousness, facilitating communication between medical staff and
the patient during surgery and enabling the monitoring of vital signs.
2. Flexible Adjustment of Anesthesia
Duration
On one hand, continuous infusion of local
anesthetics through an epidural catheter can maintain a stable anesthetic state
throughout the surgery. On the other hand, a single injection of an appropriate
amount of local anesthetics can not only precisely match the required duration
of the surgery but also help the patient quickly recover sensory and motor
functions after surgery, shorten the accumulation cycle of anesthetics in the
body, and reduce the risk of drug residue.
3. Minimal Interference with Patient’s
Physiological Functions
Compared with other anesthesia methods,
epidural anesthesia causes relatively less interference with the patient’s core
physiological functions such as respiration and circulation. Patients can
maintain spontaneous breathing during anesthesia, a feature that effectively
reduces the incidence of respiratory complications such as pulmonary infection
and atelectasis. Meanwhile, anesthetics only act on local spinal nerve roots,
exerting weak inhibitory effects on the cardiovascular system. This allows for
better maintenance of the patient’s stable blood pressure and heart rate,
making it particularly suitable for elderly patients with cardiopulmonary
dysfunction and other high-risk groups.
4. High Safety in Clinical Application
Epidural anesthesia does not directly act
on the central nervous system, thus avoiding potential effects of anesthetics
on important organs such as the brain and heart. Clinical data shows that the
incidence of severe anesthesia-related adverse reactions in patients receiving
epidural anesthesia is approximately 30%-40% lower than that in patients
receiving general anesthesia; this safety advantage is more prominent,
especially in lower limb surgeries and lower abdominal surgeries.