Hye Su Son Associate
Licensed Pharmacist

  • Phone.+82-2-565-9801
  • Fax.+82-2-565-9887
  • Email.hsson@lkpartner.co.kr
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Practice Areas
  • Healthcare
  • Pharmaceuticals
  • Corporate Law
  • General Litigation
Profile

Hye Su Son is an attorney at LK PARTNERS with extensive experience in the healthcare, pharmaceutical, and corporate law sectors. She has worked in a law firm, a major pharmaceutical company’s legal department, and the Korea Medical Dispute Mediation and Arbitration Agency (K-Medi), where she developed strong practical insight into both regulatory and litigation aspects of the healthcare and life sciences industries.

Holding dual qualifications as both a pharmacist and an attorney, Ms. Son provides comprehensive and practical legal advice that bridges the gap between scientific understanding and legal interpretation in complex medical disputes and pharmaceutical regulatory matters.

Education
  • Yeungnam University, B.Pharm. (2015)
  • Yeungnam University Law School, J.D. (2021)
Experience
  • Attorney, LK PARTNERS (2025–Present)
  • Legal Counsel, JW Holdings
  • Attorney, DaeRyoon LLC
  • Legal Officer, Korea Medical Dispute Mediation and Arbitration Agency (K-Medi)
Qualifications
  • Licensed Pharmacist, Republic of Korea (2015)
  • Attorney-at-Law, Republic of Korea (2021)
Languages
  • Korean
  • English

Recent Works

Medical Malpractice Damages Lawsuit Case | Sensory Disturbance After Tooth Extraction, Hospital Liability Not Recognized

In a medical malpractice damages lawsuit handled by LK Partners, the court ruled that the hospital bore no liability. This case involved a medical dispute concerning sensory disturbance following a tooth extraction and provides meaningful guidance on how courts assess medical negligence. Case Overview After undergoing a tooth extraction, the patient experienced persistent sensory disturbance in the mandibular (lower jaw) area. The patient filed a damages claim against the hospital, alleging that residual impairment resulted from inadequate explanation prior to surgery and negligent postoperative management. Hospital’s Arguments The hospital contended that: Sufficient explanations were provided to the patient prior to the procedure; There was no specific negligence in the surgical process; and Mandibular sensory disturbance is a complication that may commonly occur after tooth extraction. Court’s Ruling The court accepted the hospital’s arguments, finding that: The sensory disturbance fell within the range of complications that may occur after surgery; The hospital fulfilled its duty to explain potential risks to the patient; and No negligence or improper management was identified during the surgical process. Accordingly, the court did not recognize the hospital’s liability and dismissed the patient’s claims. Significance of the Decision This ruling clarifies that: The occurrence of postoperative aftereffects does not automatically constitute medical negligence; Complications may arise during surgical procedures, and where medical professionals have provided adequate prior explanations and fulfilled their duty of care, liability is limited; and In medical disputes, the most critical issues are whether the physician’s duty to explain and duty of care were properly discharged. LK Partners’ Commentary Medical malpractice disputes are complex matters requiring both specialized medical understanding and careful legal analysis. A proper response requires thorough examination of: whether the outcome constitutes a postoperative complication, whether the damage resulted from medical negligence, and whether the patient was provided with sufficient explanation in advance. Medical Malpractice and Medical Dispute Consultation If you are facing difficulties related to a medical malpractice damages claim or a medical dispute, we recommend consulting with the medical litigation specialists at LK Partners. Drawing on extensive experience, we provide optimal, case-specific legal solutions.

2025.11.19

Damages Lawsuit Concerning Involuntary Hospitalization for Mental Illness

In a damages lawsuit related to involuntary hospitalization for mental illness handled by LK Partners, the court dismissed the plaintiff’s claims, accepting the hospital’s position that the requirements for protective admission were satisfied and that no negligence occurred. Case Overview A patient suffering from a mental illness was placed under involuntary (protective) hospitalization, after which a damages lawsuit was filed. The plaintiff alleged that the hospital misjudged the patient’s condition and unnecessarily imposed compulsory admission, seeking compensation for emotional distress and related losses. Plaintiff’s Arguments The patient’s symptoms were not severe enough to warrant involuntary hospitalization. The hospital failed to comply with the procedures prescribed under the Mental Health Welfare Act and wrongfully decided on admission. As a result, the patient suffered mental and financial harm, for which the hospital should be held liable. Hospital’s Arguments The patient posed a risk of self-harm or harm to others, thereby satisfying the statutory requirements for protective admission. Based on the physician’s judgment at the time and the medical records, there were no procedural deficiencies. The admission was an unavoidable measure to protect the patient’s health and safety, and no negligence existed. Court’s Decision The court accepted the hospital’s arguments and held that: The patient’s condition met the requirements for protective admission (risk of self-harm or harm to others). The hospitalization was carried out based on the medical professionals’ expertise and judgment and could not be deemed unlawful or negligent. Accordingly, the plaintiff’s claims were dismissed. Significance of the Ruling This case clarifies the standards applied to protective hospitalization of patients with mental illness and delineates the scope of hospital liability. Protective admission may be necessary to ensure the safety of the patient and others. Where medical professionals make a reasonable judgment based on the circumstances at the time and contemporaneous medical records, it is difficult to impose damages liability after the fact. Nonetheless, medical institutions should maintain thorough and accurate medical records throughout the process to prepare for potential disputes. LK Partners’ Commentary Cases involving mental illness are particularly sensitive and complex, as they implicate both patient safety and human rights. The key issues are: whether the requirements for involuntary hospitalization are satisfied, whether procedural legitimacy is secured, and whether medical records are sufficiently complete and accurate. Careful review of these factors is essential. Medical Malpractice and Medical Dispute Consultation If you are experiencing difficulties related to a medical malpractice damages claim or a medical dispute, we recommend consulting with the medical litigation specialists at LK Partners. With extensive experience and professional expertise, we provide tailored, case-specific legal solutions.  

2025.11.19

Medical Malpractice Damages Lawsuit | Diagnostic Error Found, but No Liability Recognized for the Patient’s Death

In a medical malpractice damages lawsuit handled by LK Partners, the court acknowledged a diagnostic error by the defendant hospital but did not recognize a causal relationship between that error and the patient’s death. As a result, the plaintiff’s claim was dismissed. This case highlights the critical importance of proving not only negligence but also causation in medical disputes. Case Overview The deceased patient visited a hospital complaining of headaches and vomiting and underwent a CT scan. However, no signs of a ruptured cerebral aneurysm were identified at that time. The patient was later transferred to another hospital and underwent brain surgery, but never regained consciousness and subsequently passed away. Plaintiff’s (Patient’s Family’s) Arguments • The defendant hospital’s medical staff clearly committed a diagnostic error by failing to detect signs of a ruptured cerebral aneurysm on the CT images. • Had the risk of rebleeding been properly assessed and timely measures taken, the patient would not have died. • Therefore, the plaintiff argued that there was a causal relationship between the hospital’s negligence and the patient’s death, and that damages should be awarded. Defendant’s (Hospital’s) Arguments • Based on the initial CT images alone, it was difficult to clearly identify subarachnoid hemorrhage. • Even when the patient revisited the hospital after being discharged, there were no obvious signs of cerebral hemorrhage. • The patient’s death was caused by a subsequent rebleeding event, which had no direct causal connection to the alleged diagnostic error at the initial visit. Court’s Ruling The court held as follows: • A diagnostic error by the defendant hospital is acknowledged. • However, the patient’s death resulted from a subsequent rebleeding, and it is difficult to recognize a direct causal relationship between the initial diagnostic error and the death. • Accordingly, a diagnostic error alone is insufficient to impose liability for the patient’s death. As a result, the plaintiff’s claims were dismissed. Significance of the Decision This case clearly demonstrates that negligence and causation must be proven separately. Even where medical negligence is established, liability for damages is limited unless that negligence can be directly linked to the patient’s harm, such as death or residual disability. The ruling underscores that, in medical malpractice litigation, establishing causation is often the most critical factor for a plaintiff to prevail. LK Partners’ Commentary Medical malpractice damages claims are not determined solely by the existence of negligence. A proper legal assessment requires a thorough review of whether there was negligence in the medical act, whether that negligence is directly connected to the patient’s death or injury, and whether such causation can be legally proven. Careful analysis of these complex issues is essential for an effective legal response. Medical Malpractice and Medical Dispute Consultation If you are experiencing difficulties related to a medical malpractice damages claim or a medical dispute, we recommend consulting with the medical litigation specialists at LK Partners. Drawing on extensive experience and professional expertise, we provide tailored legal solutions optimized for each individual case.

2025.11.19

Medical Malpractice Damages Lawsuit | Plaintiff’s Claim Dismissed Due to Difficulty in Establishing Medical Negligence

In a medical malpractice damages lawsuit handled by LK Partners, the court dismissed the plaintiff’s claims, finding it difficult to conclude that the defendant hospital and its medical staff committed any negligence in the course of treatment. This case underscores the importance of the standards for determining medical negligence and the burden of proving a causal link between alleged negligence and residual disability in medical disputes.Case Overview The patient underwent a cervical ultrasound examination and biopsy at a hospital and was diagnosed with a suspected brachial plexus tumor. During the subsequent surgical procedure, nerve damage occurred, leaving the patient with residual impairments such as motor dysfunction. The patient then filed a claim for damages against the hospital. Plaintiff’s (Patient’s) Arguments The hospital failed to establish an accurate treatment plan prior to surgery and excessively resected the tumor, thereby causing damage to the brachial plexus. Postoperative follow-up care was inadequate, and the hospital did not sufficiently explain the risk of nerve injury and the possibility of residual disability.Accordingly, the patient argued that the hospital should be held liable for damages resulting from medical negligence.Defendant’s (Hospital’s) Arguments Given the circumstances at the time, the chosen surgical method was the most reasonable and appropriate treatment option. Nerve damage was unavoidable in the process of tumor removal, and the medical staff fulfilled their duty of care to protect the patient during surgery.The patient’s residual symptoms fell within the scope of known complications and could not be attributed to negligence. Court’s Ruling The court held as follows: In light of the medical standards at the time the treatment plan was established, the patient’s condition, and the examination results, the hospital’s choice of treatment fell within a reasonable range.The nerve damage and resulting residual disability constituted complications rather than negligence.There was insufficient evidence to conclude that the hospital breached its duty of care; therefore, the plaintiff’s claims were dismissed.Significance of the Decision This ruling demonstrates that medical negligence cannot be established solely on the basis of an unfavorable treatment outcome. Courts assess negligence by examining whether medical professionals formulated and implemented a reasonable and appropriate treatment plan under the circumstances at the time.Even where a patient suffers residual disability, if such outcomes fall within the category of foreseeable complications, medical negligence may not be recognized.LK Partners’ Commentary In medical malpractice and damages claims, the key issues are whether the duty of care was fulfilled during treatment and whether a causal relationship between the alleged negligence and the damage can be established.A proper legal response requires thorough examination of: whether the medical judgment was appropriate under the standards prevailing at the time,whether the patient’s outcome constitutes a complication or damage caused by negligence, andwhether the duty to explain risks and alternatives was adequately discharged. Medical Malpractice and Medical Dispute Consultation If you are experiencing difficulties related to a medical malpractice damages claim or a medical dispute, we recommend consulting with the medical litigation specialists at LK Partners. With extensive experience and professional expertise, we provide case-specific, optimal legal solutions.

2025.11.19

LKP News

LK Partners Converts to a Limited Liability Law Firm (Yuhan)

LK Partners has received approval from the Ministry of Justice to convert its organizational structure into a limited liability law firm (Yuhan).This conversion was undertaken to establish an organizational framework comparable to that of a top-tier law firm and to further strengthen management transparency and institutional stability.Through the transition to a limited liability structure, LK Partners has implemented an internal governance system that enables attorneys in each practice area to make decisions more efficiently and independently. The firm has also secured a more robust foundation for the systematic management of large-scale matters and the effective distribution of legal and operational risk. In addition, by ensuring accounting transparency in line with external audit standards, LK Partners is now better positioned to provide trust-based legal services that meet the expectations of both domestic and international corporate clients.Alongside the organizational transition, the firm has completed a full renewal of its website. Under the slogan “Next Law Firm of Korea,” the revamped site enhances accessibility and information delivery while reflecting a simplified structure designed to provide a more intuitive user experience.Going forward, LK Partners will continue to strengthen its expertise and sense of responsibility, delivering optimal legal services across a broad range of practice areas, including healthcare, real estate, finance, corporate law, fair trade, intellectual property, tax, and customs. As a comprehensive legal partner, the firm remains committed to earning and maintaining the trust of its clients through continuous growth and development.

2025.11.24