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

CourtCourt of Appeals of Washington
DecidedMay 19, 2025
Docket86049-6
StatusUnpublished

This text of Krystina Carson, V. Matthew Ashbach, M.d. Et Ano (Krystina Carson, V. Matthew Ashbach, M.d. Et Ano) is published on Counsel Stack Legal Research, covering Court of Appeals of Washington primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

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

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v. UNPUBLISHED OPINION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. No. 86049-6-I/2

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.

2 No. 86049-6-I/3

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.”

3 No. 86049-6-I/4

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,

4 No. 86049-6-I/5

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).

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