Krystina Carson, V. Matthew Ashbach, M.d. Et Ano

Court of Appeals of Washington·Decided May 19, 2025·No. 86049-6·Unpublished

Opinion

IN THE COURT OF APPEALS OF THE STATE OF WASHINGTON

KRYSTINA CARSON, a married individual, No. 86049-6-I

Appellant, DIVISION ONE v. UNPUBLISHED OPINION

MATTHEW ASHBACH, a married man; WESTERN WASHINGTON MEDICAL GROUP, INC., P.S., a Washington Corporation,

Respondents.

BIRK, J. — Krystina Carson sued Dr. Matthew Ashbach and Western Washington Medical Group (WWMG), alleging claims for medical negligence, failure to obtain informed consent, and corporate negligence. The superior court granted summary judgment dismissing Carson’s corporate negligence claim, and a jury returned a defense verdict on her remaining claims. Carson appeals, asserting that the trial court erred in (1) issuing a jury instruction based on RCW 7.70.060(5), (2) dismissing the corporate negligence claim against WWMG, and (3) empaneling a Kent jury for the Seattle designated case. We conclude that in the circumstances of Carson’s claims, the superior court did not err, and we affirm.

I

Carson first procured the services of Dr. Ashbach, an otolaryngologist, in 2015 for a Botox injection. Carson had previously received cosmetic treatments, including Botox injections from 1997 to 2020, silicone injections in the 1990’s, and injectable dermal fillers starting in 2014. In June 2016, Carson began seeing Dr. Ashbach for dermal filler injections. Dr. Ashbach was an employee of (WWMG). Starting in 2015, five to ten percent of his practice included administering Botox or fillers.

When asked about treating Carson in June 2016, Dr. Ashbach answered that he did not recall the discussion that they had, but he described the conversation he said he usually had with first-time dermal filler patients. This conversation would include severe risks of the procedure, such as blood vessel blockage. Carson signed a consent form. She selected Radiesse, a calcium hydroxyapatite-based filler, because “it lasts longer.” Between June 2016 and December 2019, Dr. Ashbach provided Carson with five Radiesse injections.

In early 2020, Dr. Ashbach testified he became aware that there were reports of increasing numbers of complications with Radiesse, including some with “people sloughing off skin of their face [and] going blind.” Radiesse cannot be reversed when there is a less than optimal outcome. In contrast, hyaluronic acid- based fillers can be dissolved. After seeing increasing reports of complications with Radiesse, Dr. Ashbach administered significantly less Radiesse in 2020 than prior years. In March 2020 he recommended to Carson that she switch to Refyne. Carson agreed. She did not sign a new informed consent form.

In October 2020, Carson returned to Dr. Ashbach, she wanted to switch back to Radiesse because Refyne “was dissipating too quickly.” Carson and Dr. Ashbach had a conversation about returning to Radiesse. Carson did not receive a new or updated informed consent form. Dr. Ashbach administered the Radiesse injection.

When she got home, Carson felt a “numb tingling sensation” and after trying to identify possible causes on the internet, she decided that she would “sleep on it” and “call first thing in the morning.” By 8 p.m. her face had swelled up and turned “grayish-green.” Carson decided not to go to the emergency room, reasoning that an emergency room wasn’t “equipped to deal with a cosmetic thing,” and “[i]t was a horrible time to be at the emergency room” because of the COVID- 19 pandemic. In the morning, she called Dr. Ashbach’s office and was told to “[c]ome in right away.”

Dr. Ashbach assumed that the injection had hit a blood vessel. That complication interrupts blood flow to the affected area, reducing oxygen, and potentially leading to necrosis, tissue loss, blindness, and stroke symptoms. Dr. Ashbach treated Carson throughout October and November. Carson continued to see Dr. Ashbach until March 2021. As a result of the October Radiesse injection, Carson suffered permanent damage to her face, including “loss of her left nasal ala with soft tissue loss and extensive scarring of the left medial cheek and upper and lower lip.”

In January 2022, Carson filed this lawsuit against Dr. Ashbach and WWMG, alleging claims for medical negligence, failure to obtain informed consent, and corporate negligence. The superior court granted partial summary judgment dismissing the corporate negligence claim. The Seattle designated case was assigned to a judge at the Maleng Regional Justice Center in Kent and the court empaneled with a jury drawn from the Kent jury assignment area. After ten days of trial, the jury returned a verdict finding that Carson had not met her burden of proof on her informed consent or negligence claims. Carson appeals.

II

Carson argues that jury instruction 12 was erroneous, prejudicial, and an improper comment on the evidence. Jury instruction 12 stated, “Failure to use a form on a given occasion is not, standing alone, evidence of a failure to obtain informed consent.” Carson argues that the instruction was error because it instructed the “jury to not consider the custom and practice of the very physicians who testified at trial,” “was not supported by any law,” and “prejudicially emphasized [Dr. Ashbach’s] case theory.” (Emphasis omitted.) The instruction was based on RCW 7.70.060(5), which states in relevant part, “Failure to use a form . . . shall not be admissible as evidence of failure to obtain informed consent.” Carson is correct that RCW 7.70.060(5) is concerned with the admissibility of evidence. But based on the evidence presented at trial, the trial court was justifiably concerned that “in light of the total case,” there was a “danger” that jurors would think that Dr. Ashbach “not using the form in 2020 settles the case.” Given that concern, the trial court acted within its discretion in issuing jury instruction 12,

which did not prejudice Carson, improperly comment on the evidence, or prevent either party from arguing their theories of the case.

A

Appellate courts review a trial court’s decision to give a jury instruction de novo if based on a matter of law, and for abuse of discretion if based on a matter of fact. Lake Hills Invs., LLC v. Rushforth Constr. Co., Inc., 198 Wn.2d 209, 215- 16, 494 P.3d 410 (2021). Prejudice is presumed if the instruction contains a clear misstatement of law. Id. at 216. The party challenging the instruction bears the burden of showing prejudice. Fergen v. Sestero, 182 Wn.2d 794, 803, 346 P.3d 708 (2015). Whether to give a specific instruction is reviewed for abuse of discretion. Id. at 802-03. The propriety of an instruction is dictated by the facts of the case. Id. at 803. Instructions are sufficient when they are supported by the evidence, allow each side to argue their theories of the case, and properly inform the trier of fact of the law. Id. Instructions need not “present elements verbatim from a statute.” State v. Bergstrom, 199 Wn.2d 23, 38, 502 P.3d 837 (2022).

The meaning of a statute is a question of law reviewed de novo. Wolf v.

State, 2 Wn.3d 93, 102, 534 P.3d 822 (2023). The fundamental objective when interpreting a statute is to ascertain and give effect to the legislature’s intent, if the meaning of the statute is plain on its face, then the court must give effect to that meaning as an expression of legislative intent. Dep’t of Ecology v. Campbell & Gwinn, LLC, 146 Wn.2d 1, 9-10, 43 P.3d 4 (2002).

B

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Krystina Carson, V. Matthew Ashbach, M.d. Et Ano, (Wash. Ct. App. 2025).

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